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Research points toward combination therapy for Lyme and improved diagnostics
Several recent developments in Lyme disease treatment and diagnosis may pave the way forward for combating disease that persists following missed or delayed diagnoses or remains following standard treatment. These include combination therapy to address “persister” bacteria and diagnostic tests that test directly for the pathogen and/or indirectly test for host response, according to experts who presented at a 2-day National Academies of Science, Engineering and Medicine workshop on infection-associated chronic illnesses.
Research has shown that 60% of people who are infected and not treated during the early or early disseminated stages of Lyme disease go on to develop late Lyme arthritis, said John Aucott, MD, director of the Johns Hopkins Lyme Disease Clinical Research Center in Baltimore. And in the real world, there’s an additional category of patients: Those who are misdiagnosed and develop infection-related persistent symptoms – such as fatigue, brain fog/cognitive dysfunction, and musculoskeletal problems – that don’t match the “textbook schematic” involving late Lyme arthritis and late neurologic disease.
Moreover, of patients who are treated with protocols recommended by the Infectious Diseases Society of America (IDSA), about 15% go on to develop persistent symptoms at 6 months – again, symptoms that don’t match textbook manifestations and do match symptoms of other infection-associated chronic illnesses. As a “research construct,” this has been coined posttreatment Lyme disease (PTLD), he said at the workshop, “Toward a Common Research Agenda in Infection-Associated Chronic Illnesses.”
(On a practical level, it is hard to know clinically who has early disseminated disease unless they have multiple erythema migrans rashes or neurologic or cardiac involvement, he said after the meeting.)
All this points to the need for tests that are sensitive and specific for diagnosis at all stages of infection and disease, he said in a talk on diagnostics. Currently available tests – those that fit into the widely used two-tiered enzyme-linked immunosorbent assay, Western Blot serology testing – have significant limitations in sensitivity and specificity, including for acute infection when the body has not generated enough antibodies, yet treatment is most likely to succeed.
Move toward combination therapy research
Lyme disease is most commonly treated with doxycycline, and that’s problematic because the antibiotic is a microstatic whose efficacy relies on immune clearance of static bacteria, said Monica E. Embers, PhD, director of vector-borne disease at the Tulane National Primate Research Center and associate professor of immunology at Tulane University, New Orleans.
“But we know that Borrelia burgdorferi has the capability to evade the host immune response in almost every way possible. Persistence is the norm in an immunocompetent host ... [and] dormant bacteria/persisters are more tolerant of microstatic antibiotics,” she said.
Other considerations for antibiotic efficacy include the fact that B. burgdorferi survives for many months inside ticks without nutrient replenishment or replication, “so dormancy is part of their life cycle,” she said. Moreover, the bacteria can be found deep in connective tissues and joints.
The efficacy of accepted regimens of antibiotic treatment has been “a very contentious issue,” she said, noting that guidelines from the International Lyme and Associated Diseases Society “leave open the possibility for antibiotic retreatment when a chronic infection is judged to be a possible cause [of ongoing symptoms].”
The development of persister B. burgdorferi in the presence of antibiotics has been well studied in vitro, which has limitations, Dr. Embers said. But her group specializes in animal models and has shown persistence of antimicrobial-tolerant B. burgdorferi in tick-inoculated rhesus macaques 8-9 months after treatment with oral doxycycline.
“We [also] saw persistence of mild-moderate inflammation in the brain, peripheral nerves, spinal cord, joints and skeletal muscle, and in the heart,” Dr. Embers said, who coauthored a 2022 review of B. burgdorferi antimicrobial-tolerant persistence in Lyme disease and PTLD.
Her work has also shown that ceftriaxone, which is recommended by IDSA for patients with clinically evident neurological and/or cardiac involvement, does not clear infection in mice. “In general, single drugs have not been capable of clearing the infection, yet combinations show promise,” she said.
Dr. Embers has combed large drug libraries looking for combinations of antibiotics that employ different mechanisms of action in hopes of eliminating persister spirochetes. Certain combinations have shown promise in mice and have been tested in her rhesus macaque model; data analyses are underway.
Other research teams, such as that of Ying Zhang, MD, PhD, at Johns Hopkins, have similarly been screening combinations of antibiotics and other compounds, identifying candidates for further testing.
During a question and answer period, Dr. Embers said her team is also investigating the pathophysiology and long-term effects of tick-borne coinfections, including Bartonella, and is pursuing a hypothesis that infection with Borrelia allows Bartonella to cause more extensive disease and persist longer. “I think Lyme is at the core because of its ability to evade and suppress the immune response so effectively.”
Diagnostic possibilities, biomarkers for PTLD
Direct diagnostic tests for microbial nucleic acid and proteins “are promising alternatives for indirect serologic tests,” Dr. Aucott said. For instance, in addition to polymerase chain reaction tests, which “are making advances,” it may be possible to target the B. burgdorferi peptidoglycan for antigen detection.
Researchers have shown that peptidoglycan, a component of the B. burgdorferi cell envelope, is a persistent antigen in the synovial fluid of patients with Lyme arthritis who have been treated with oral and intravenous antibiotics, and that it likely contributes to inflammation.
“Maybe the infection is gone but parts of the bacteria are still there that are driving inflammation,” said Dr. Aucott, also associate professor of medicine at John Hopkins.
Researchers have also been looking at the host response to B. burgdorferi – including cytokines, chemokines, and autoantibiodies – to identify biomarkers for PTLD and to identify patients during posttreatment follow-up who are at increased risk of developing PTLD, with the hope of someday intervening. Persistently high levels of interleukin-23, CCL19, and interferon-alpha have each been associated in different studies with persistent symptoms after treatment, Dr. Aucott said.
In addition, metabolomics research is showing that patients with PTLD have metabolic fingerprints that are different from those who return to good health after treatment, and it may be possible to identify an epigenetic signature for Lyme disease. A project sponsored by the Defense Advanced Research Projects Agency called ECHO (Epigenetic Characterization and Observation) aims to identify epigenetic signatures of exposures to various threats, including B. burgdorferi.
“At the very proximal end of [indirectly testing for host response], there are modifications of the DNA that can occur in response to infectious insults ... and that changed DNA changes RNA expression and protein synthesis,” Dr. Aucott explained. DARPA’s project is “exciting because their goal [at DARPA] is to have a diagnostic test quickly as a result of this epigenetics work.”
Imaging research is also fast offering diagnostic opportunities, Dr. Aucott said. Levels of microglial activation on brain PET imaging have been found to correlate with PTLD, and a study at Johns Hopkins of multimodal neuroimaging with functional MRI and diffusion tensor imaging has shown distinct changes to white matter activation within the frontal lobe of patients with PTLD, compared with controls.
The NASEM workshop did not collect or require disclosures of its participants.
Several recent developments in Lyme disease treatment and diagnosis may pave the way forward for combating disease that persists following missed or delayed diagnoses or remains following standard treatment. These include combination therapy to address “persister” bacteria and diagnostic tests that test directly for the pathogen and/or indirectly test for host response, according to experts who presented at a 2-day National Academies of Science, Engineering and Medicine workshop on infection-associated chronic illnesses.
Research has shown that 60% of people who are infected and not treated during the early or early disseminated stages of Lyme disease go on to develop late Lyme arthritis, said John Aucott, MD, director of the Johns Hopkins Lyme Disease Clinical Research Center in Baltimore. And in the real world, there’s an additional category of patients: Those who are misdiagnosed and develop infection-related persistent symptoms – such as fatigue, brain fog/cognitive dysfunction, and musculoskeletal problems – that don’t match the “textbook schematic” involving late Lyme arthritis and late neurologic disease.
Moreover, of patients who are treated with protocols recommended by the Infectious Diseases Society of America (IDSA), about 15% go on to develop persistent symptoms at 6 months – again, symptoms that don’t match textbook manifestations and do match symptoms of other infection-associated chronic illnesses. As a “research construct,” this has been coined posttreatment Lyme disease (PTLD), he said at the workshop, “Toward a Common Research Agenda in Infection-Associated Chronic Illnesses.”
(On a practical level, it is hard to know clinically who has early disseminated disease unless they have multiple erythema migrans rashes or neurologic or cardiac involvement, he said after the meeting.)
All this points to the need for tests that are sensitive and specific for diagnosis at all stages of infection and disease, he said in a talk on diagnostics. Currently available tests – those that fit into the widely used two-tiered enzyme-linked immunosorbent assay, Western Blot serology testing – have significant limitations in sensitivity and specificity, including for acute infection when the body has not generated enough antibodies, yet treatment is most likely to succeed.
Move toward combination therapy research
Lyme disease is most commonly treated with doxycycline, and that’s problematic because the antibiotic is a microstatic whose efficacy relies on immune clearance of static bacteria, said Monica E. Embers, PhD, director of vector-borne disease at the Tulane National Primate Research Center and associate professor of immunology at Tulane University, New Orleans.
“But we know that Borrelia burgdorferi has the capability to evade the host immune response in almost every way possible. Persistence is the norm in an immunocompetent host ... [and] dormant bacteria/persisters are more tolerant of microstatic antibiotics,” she said.
Other considerations for antibiotic efficacy include the fact that B. burgdorferi survives for many months inside ticks without nutrient replenishment or replication, “so dormancy is part of their life cycle,” she said. Moreover, the bacteria can be found deep in connective tissues and joints.
The efficacy of accepted regimens of antibiotic treatment has been “a very contentious issue,” she said, noting that guidelines from the International Lyme and Associated Diseases Society “leave open the possibility for antibiotic retreatment when a chronic infection is judged to be a possible cause [of ongoing symptoms].”
The development of persister B. burgdorferi in the presence of antibiotics has been well studied in vitro, which has limitations, Dr. Embers said. But her group specializes in animal models and has shown persistence of antimicrobial-tolerant B. burgdorferi in tick-inoculated rhesus macaques 8-9 months after treatment with oral doxycycline.
“We [also] saw persistence of mild-moderate inflammation in the brain, peripheral nerves, spinal cord, joints and skeletal muscle, and in the heart,” Dr. Embers said, who coauthored a 2022 review of B. burgdorferi antimicrobial-tolerant persistence in Lyme disease and PTLD.
Her work has also shown that ceftriaxone, which is recommended by IDSA for patients with clinically evident neurological and/or cardiac involvement, does not clear infection in mice. “In general, single drugs have not been capable of clearing the infection, yet combinations show promise,” she said.
Dr. Embers has combed large drug libraries looking for combinations of antibiotics that employ different mechanisms of action in hopes of eliminating persister spirochetes. Certain combinations have shown promise in mice and have been tested in her rhesus macaque model; data analyses are underway.
Other research teams, such as that of Ying Zhang, MD, PhD, at Johns Hopkins, have similarly been screening combinations of antibiotics and other compounds, identifying candidates for further testing.
During a question and answer period, Dr. Embers said her team is also investigating the pathophysiology and long-term effects of tick-borne coinfections, including Bartonella, and is pursuing a hypothesis that infection with Borrelia allows Bartonella to cause more extensive disease and persist longer. “I think Lyme is at the core because of its ability to evade and suppress the immune response so effectively.”
Diagnostic possibilities, biomarkers for PTLD
Direct diagnostic tests for microbial nucleic acid and proteins “are promising alternatives for indirect serologic tests,” Dr. Aucott said. For instance, in addition to polymerase chain reaction tests, which “are making advances,” it may be possible to target the B. burgdorferi peptidoglycan for antigen detection.
Researchers have shown that peptidoglycan, a component of the B. burgdorferi cell envelope, is a persistent antigen in the synovial fluid of patients with Lyme arthritis who have been treated with oral and intravenous antibiotics, and that it likely contributes to inflammation.
“Maybe the infection is gone but parts of the bacteria are still there that are driving inflammation,” said Dr. Aucott, also associate professor of medicine at John Hopkins.
Researchers have also been looking at the host response to B. burgdorferi – including cytokines, chemokines, and autoantibiodies – to identify biomarkers for PTLD and to identify patients during posttreatment follow-up who are at increased risk of developing PTLD, with the hope of someday intervening. Persistently high levels of interleukin-23, CCL19, and interferon-alpha have each been associated in different studies with persistent symptoms after treatment, Dr. Aucott said.
In addition, metabolomics research is showing that patients with PTLD have metabolic fingerprints that are different from those who return to good health after treatment, and it may be possible to identify an epigenetic signature for Lyme disease. A project sponsored by the Defense Advanced Research Projects Agency called ECHO (Epigenetic Characterization and Observation) aims to identify epigenetic signatures of exposures to various threats, including B. burgdorferi.
“At the very proximal end of [indirectly testing for host response], there are modifications of the DNA that can occur in response to infectious insults ... and that changed DNA changes RNA expression and protein synthesis,” Dr. Aucott explained. DARPA’s project is “exciting because their goal [at DARPA] is to have a diagnostic test quickly as a result of this epigenetics work.”
Imaging research is also fast offering diagnostic opportunities, Dr. Aucott said. Levels of microglial activation on brain PET imaging have been found to correlate with PTLD, and a study at Johns Hopkins of multimodal neuroimaging with functional MRI and diffusion tensor imaging has shown distinct changes to white matter activation within the frontal lobe of patients with PTLD, compared with controls.
The NASEM workshop did not collect or require disclosures of its participants.
Several recent developments in Lyme disease treatment and diagnosis may pave the way forward for combating disease that persists following missed or delayed diagnoses or remains following standard treatment. These include combination therapy to address “persister” bacteria and diagnostic tests that test directly for the pathogen and/or indirectly test for host response, according to experts who presented at a 2-day National Academies of Science, Engineering and Medicine workshop on infection-associated chronic illnesses.
Research has shown that 60% of people who are infected and not treated during the early or early disseminated stages of Lyme disease go on to develop late Lyme arthritis, said John Aucott, MD, director of the Johns Hopkins Lyme Disease Clinical Research Center in Baltimore. And in the real world, there’s an additional category of patients: Those who are misdiagnosed and develop infection-related persistent symptoms – such as fatigue, brain fog/cognitive dysfunction, and musculoskeletal problems – that don’t match the “textbook schematic” involving late Lyme arthritis and late neurologic disease.
Moreover, of patients who are treated with protocols recommended by the Infectious Diseases Society of America (IDSA), about 15% go on to develop persistent symptoms at 6 months – again, symptoms that don’t match textbook manifestations and do match symptoms of other infection-associated chronic illnesses. As a “research construct,” this has been coined posttreatment Lyme disease (PTLD), he said at the workshop, “Toward a Common Research Agenda in Infection-Associated Chronic Illnesses.”
(On a practical level, it is hard to know clinically who has early disseminated disease unless they have multiple erythema migrans rashes or neurologic or cardiac involvement, he said after the meeting.)
All this points to the need for tests that are sensitive and specific for diagnosis at all stages of infection and disease, he said in a talk on diagnostics. Currently available tests – those that fit into the widely used two-tiered enzyme-linked immunosorbent assay, Western Blot serology testing – have significant limitations in sensitivity and specificity, including for acute infection when the body has not generated enough antibodies, yet treatment is most likely to succeed.
Move toward combination therapy research
Lyme disease is most commonly treated with doxycycline, and that’s problematic because the antibiotic is a microstatic whose efficacy relies on immune clearance of static bacteria, said Monica E. Embers, PhD, director of vector-borne disease at the Tulane National Primate Research Center and associate professor of immunology at Tulane University, New Orleans.
“But we know that Borrelia burgdorferi has the capability to evade the host immune response in almost every way possible. Persistence is the norm in an immunocompetent host ... [and] dormant bacteria/persisters are more tolerant of microstatic antibiotics,” she said.
Other considerations for antibiotic efficacy include the fact that B. burgdorferi survives for many months inside ticks without nutrient replenishment or replication, “so dormancy is part of their life cycle,” she said. Moreover, the bacteria can be found deep in connective tissues and joints.
The efficacy of accepted regimens of antibiotic treatment has been “a very contentious issue,” she said, noting that guidelines from the International Lyme and Associated Diseases Society “leave open the possibility for antibiotic retreatment when a chronic infection is judged to be a possible cause [of ongoing symptoms].”
The development of persister B. burgdorferi in the presence of antibiotics has been well studied in vitro, which has limitations, Dr. Embers said. But her group specializes in animal models and has shown persistence of antimicrobial-tolerant B. burgdorferi in tick-inoculated rhesus macaques 8-9 months after treatment with oral doxycycline.
“We [also] saw persistence of mild-moderate inflammation in the brain, peripheral nerves, spinal cord, joints and skeletal muscle, and in the heart,” Dr. Embers said, who coauthored a 2022 review of B. burgdorferi antimicrobial-tolerant persistence in Lyme disease and PTLD.
Her work has also shown that ceftriaxone, which is recommended by IDSA for patients with clinically evident neurological and/or cardiac involvement, does not clear infection in mice. “In general, single drugs have not been capable of clearing the infection, yet combinations show promise,” she said.
Dr. Embers has combed large drug libraries looking for combinations of antibiotics that employ different mechanisms of action in hopes of eliminating persister spirochetes. Certain combinations have shown promise in mice and have been tested in her rhesus macaque model; data analyses are underway.
Other research teams, such as that of Ying Zhang, MD, PhD, at Johns Hopkins, have similarly been screening combinations of antibiotics and other compounds, identifying candidates for further testing.
During a question and answer period, Dr. Embers said her team is also investigating the pathophysiology and long-term effects of tick-borne coinfections, including Bartonella, and is pursuing a hypothesis that infection with Borrelia allows Bartonella to cause more extensive disease and persist longer. “I think Lyme is at the core because of its ability to evade and suppress the immune response so effectively.”
Diagnostic possibilities, biomarkers for PTLD
Direct diagnostic tests for microbial nucleic acid and proteins “are promising alternatives for indirect serologic tests,” Dr. Aucott said. For instance, in addition to polymerase chain reaction tests, which “are making advances,” it may be possible to target the B. burgdorferi peptidoglycan for antigen detection.
Researchers have shown that peptidoglycan, a component of the B. burgdorferi cell envelope, is a persistent antigen in the synovial fluid of patients with Lyme arthritis who have been treated with oral and intravenous antibiotics, and that it likely contributes to inflammation.
“Maybe the infection is gone but parts of the bacteria are still there that are driving inflammation,” said Dr. Aucott, also associate professor of medicine at John Hopkins.
Researchers have also been looking at the host response to B. burgdorferi – including cytokines, chemokines, and autoantibiodies – to identify biomarkers for PTLD and to identify patients during posttreatment follow-up who are at increased risk of developing PTLD, with the hope of someday intervening. Persistently high levels of interleukin-23, CCL19, and interferon-alpha have each been associated in different studies with persistent symptoms after treatment, Dr. Aucott said.
In addition, metabolomics research is showing that patients with PTLD have metabolic fingerprints that are different from those who return to good health after treatment, and it may be possible to identify an epigenetic signature for Lyme disease. A project sponsored by the Defense Advanced Research Projects Agency called ECHO (Epigenetic Characterization and Observation) aims to identify epigenetic signatures of exposures to various threats, including B. burgdorferi.
“At the very proximal end of [indirectly testing for host response], there are modifications of the DNA that can occur in response to infectious insults ... and that changed DNA changes RNA expression and protein synthesis,” Dr. Aucott explained. DARPA’s project is “exciting because their goal [at DARPA] is to have a diagnostic test quickly as a result of this epigenetics work.”
Imaging research is also fast offering diagnostic opportunities, Dr. Aucott said. Levels of microglial activation on brain PET imaging have been found to correlate with PTLD, and a study at Johns Hopkins of multimodal neuroimaging with functional MRI and diffusion tensor imaging has shown distinct changes to white matter activation within the frontal lobe of patients with PTLD, compared with controls.
The NASEM workshop did not collect or require disclosures of its participants.
FROM A NATIONAL ACADEMIES OF SCIENCE, ENGINEERING AND MEDICINE WORKSHOP
Chronic constipation linked to cognitive decline
Compared with individuals who have a bowel movement once daily, adults with constipation who have a bowel movement every 3 days or more had significantly worse cognition that was commensurate with an additional 3 years of chronological cognitive aging, the investigators found.
“We should watch for symptoms of abnormal intestinal function, especially constipation, in older individuals, as these symptoms may hint at a higher risk of cognitive decline in the future,” study investigator Chaoran Ma, MD, PhD, former research fellow at Brigham and Women’s Hospital and Harvard Medical School, both in Boston, and current assistant professor at the University of Massachusetts Amherst, said in an interview.
The findings were presented at the Alzheimer’s Association International Conference.
Prevent constipation, improve brain health?
It’s estimated that 16% of the world’s population suffers from constipation. The problem is more common in older adults, owing to age-related factors such as a lack of dietary fiber and exercise and the use of constipating drugs to treat other medical conditions.
Chronic constipation – defined as having bowel movements every 3 days or more – has been associated with long-term health problems, such as inflammation, hormonal imbalances, anxiety, and depression.
However, few studies have investigated variations in intestinal motility and cognitive function.
“Our study provides first-of-its-kind evidence that examined a wide spectrum of bowel movement frequency, especially an analysis of the more frequent end, in relation to cognitive function,” Dr. Ma said.
The analysis involved data from 112,753 women and men from the Nurses’ Health Study (aged 30-55 years), the Nurses’ Health Study II (aged 25-42), and the Health Professionals Follow-up Study (aged 40-75).
Data on participants’ bowel movement frequency was collected between 2012 and 2013, and self-assessments of cognitive function were obtained from 2014 to 2017. A subgroup of 12,696 participants completed a standard neuropsychological test battery for objective cognitive assessment between 2014 and 2018.
The results show that bowel movement frequency was associated with overall objective cognitive function and learning and working memory in an inverse J-shape dose-response manner (both P for nonlinearity < .05).
Compared with adults who had one bowel movement daily, those who only had a bowel movement every 3 or more days had significantly worse cognition, equivalent to 3 years of additional aging (95% confidence interval, 1.2-4.7).
The researchers also observed similar J-shape dose-response relationships of bowel movement frequency with the odds of subjective cognitive decline and the likelihood of having more subjective cognitive complaints over time.
Compared with once-daily bowel movements, having bowel movements every 3 or more days was associated with a greater likelihood of subjective cognitive decline (odds ratio, 1.73; 95% CI, 1.60-1.86).
These relationships were generally consistent across the three cohorts and subgroups.
“These results stress the importance of clinicians discussing gut health, especially constipation, with their older patients,” senior investigator Dong Wang, MD, ScD, with Harvard Medical School and Brigham and Women’s Hospital, said in a conference statement.
“Interventions for preventing constipation and improving gut health include adopting healthy diets enriched with high-fiber and high-polyphenol foods such as fruits, vegetables, and whole grains; taking fiber supplementation; drinking plenty of water every day; and having regular physical activity,” Dr. Wang added.
The researchers also explored the role of the gut microbiome in the association between bowel movement frequency and cognitive function in a subgroup of 515 women and men.
They found that bowel movement frequency and subjective cognition were significantly associated with the overall variation of the gut microbiome (both P < .005) and specific microbial species.
“This research adds further evidence for a link between the microbiome and gastrointestinal function with cognitive function,” Dr. Ma said in an interview.
Interconnected systems
Commenting on the study in a conference statement, Heather M. Snyder, PhD, vice president of medical and scientific relations at the Alzheimer’s Association, noted that “our body systems are all interconnected. When one system is malfunctioning, it impacts other systems. When that dysfunction isn’t addressed, it can create a waterfall of consequences for the rest of the body.”
Dr. Snyder cautioned, however, that “there are a lot of unanswered questions about the connection between the health of our digestive system and our long-term cognitive function. Answering these questions may uncover novel therapeutic and risk-reduction approaches for Alzheimer’s and other dementias.”
In an interview, Percy Griffin, PhD, director of scientific engagement at the Alzheimer’s Association, noted that the U.S. Study to Protect Brain Health Through Lifestyle Intervention to Reduce Risk, is evaluating the impact of behavioral interventions on the gut-brain axis.
“We want to better understand how engaging in healthier habits can impact microorganisms in the gut and how changes in gut bacteria relate to brain health,” Dr. Griffin said.
The study was funded by the National Institutes of Health. Dr. Ma, Dr. Wang, Dr. Snyder, and Dr. Griffin have no relevant disclosures.
A version of this article first appeared on Medscape.com.
Compared with individuals who have a bowel movement once daily, adults with constipation who have a bowel movement every 3 days or more had significantly worse cognition that was commensurate with an additional 3 years of chronological cognitive aging, the investigators found.
“We should watch for symptoms of abnormal intestinal function, especially constipation, in older individuals, as these symptoms may hint at a higher risk of cognitive decline in the future,” study investigator Chaoran Ma, MD, PhD, former research fellow at Brigham and Women’s Hospital and Harvard Medical School, both in Boston, and current assistant professor at the University of Massachusetts Amherst, said in an interview.
The findings were presented at the Alzheimer’s Association International Conference.
Prevent constipation, improve brain health?
It’s estimated that 16% of the world’s population suffers from constipation. The problem is more common in older adults, owing to age-related factors such as a lack of dietary fiber and exercise and the use of constipating drugs to treat other medical conditions.
Chronic constipation – defined as having bowel movements every 3 days or more – has been associated with long-term health problems, such as inflammation, hormonal imbalances, anxiety, and depression.
However, few studies have investigated variations in intestinal motility and cognitive function.
“Our study provides first-of-its-kind evidence that examined a wide spectrum of bowel movement frequency, especially an analysis of the more frequent end, in relation to cognitive function,” Dr. Ma said.
The analysis involved data from 112,753 women and men from the Nurses’ Health Study (aged 30-55 years), the Nurses’ Health Study II (aged 25-42), and the Health Professionals Follow-up Study (aged 40-75).
Data on participants’ bowel movement frequency was collected between 2012 and 2013, and self-assessments of cognitive function were obtained from 2014 to 2017. A subgroup of 12,696 participants completed a standard neuropsychological test battery for objective cognitive assessment between 2014 and 2018.
The results show that bowel movement frequency was associated with overall objective cognitive function and learning and working memory in an inverse J-shape dose-response manner (both P for nonlinearity < .05).
Compared with adults who had one bowel movement daily, those who only had a bowel movement every 3 or more days had significantly worse cognition, equivalent to 3 years of additional aging (95% confidence interval, 1.2-4.7).
The researchers also observed similar J-shape dose-response relationships of bowel movement frequency with the odds of subjective cognitive decline and the likelihood of having more subjective cognitive complaints over time.
Compared with once-daily bowel movements, having bowel movements every 3 or more days was associated with a greater likelihood of subjective cognitive decline (odds ratio, 1.73; 95% CI, 1.60-1.86).
These relationships were generally consistent across the three cohorts and subgroups.
“These results stress the importance of clinicians discussing gut health, especially constipation, with their older patients,” senior investigator Dong Wang, MD, ScD, with Harvard Medical School and Brigham and Women’s Hospital, said in a conference statement.
“Interventions for preventing constipation and improving gut health include adopting healthy diets enriched with high-fiber and high-polyphenol foods such as fruits, vegetables, and whole grains; taking fiber supplementation; drinking plenty of water every day; and having regular physical activity,” Dr. Wang added.
The researchers also explored the role of the gut microbiome in the association between bowel movement frequency and cognitive function in a subgroup of 515 women and men.
They found that bowel movement frequency and subjective cognition were significantly associated with the overall variation of the gut microbiome (both P < .005) and specific microbial species.
“This research adds further evidence for a link between the microbiome and gastrointestinal function with cognitive function,” Dr. Ma said in an interview.
Interconnected systems
Commenting on the study in a conference statement, Heather M. Snyder, PhD, vice president of medical and scientific relations at the Alzheimer’s Association, noted that “our body systems are all interconnected. When one system is malfunctioning, it impacts other systems. When that dysfunction isn’t addressed, it can create a waterfall of consequences for the rest of the body.”
Dr. Snyder cautioned, however, that “there are a lot of unanswered questions about the connection between the health of our digestive system and our long-term cognitive function. Answering these questions may uncover novel therapeutic and risk-reduction approaches for Alzheimer’s and other dementias.”
In an interview, Percy Griffin, PhD, director of scientific engagement at the Alzheimer’s Association, noted that the U.S. Study to Protect Brain Health Through Lifestyle Intervention to Reduce Risk, is evaluating the impact of behavioral interventions on the gut-brain axis.
“We want to better understand how engaging in healthier habits can impact microorganisms in the gut and how changes in gut bacteria relate to brain health,” Dr. Griffin said.
The study was funded by the National Institutes of Health. Dr. Ma, Dr. Wang, Dr. Snyder, and Dr. Griffin have no relevant disclosures.
A version of this article first appeared on Medscape.com.
Compared with individuals who have a bowel movement once daily, adults with constipation who have a bowel movement every 3 days or more had significantly worse cognition that was commensurate with an additional 3 years of chronological cognitive aging, the investigators found.
“We should watch for symptoms of abnormal intestinal function, especially constipation, in older individuals, as these symptoms may hint at a higher risk of cognitive decline in the future,” study investigator Chaoran Ma, MD, PhD, former research fellow at Brigham and Women’s Hospital and Harvard Medical School, both in Boston, and current assistant professor at the University of Massachusetts Amherst, said in an interview.
The findings were presented at the Alzheimer’s Association International Conference.
Prevent constipation, improve brain health?
It’s estimated that 16% of the world’s population suffers from constipation. The problem is more common in older adults, owing to age-related factors such as a lack of dietary fiber and exercise and the use of constipating drugs to treat other medical conditions.
Chronic constipation – defined as having bowel movements every 3 days or more – has been associated with long-term health problems, such as inflammation, hormonal imbalances, anxiety, and depression.
However, few studies have investigated variations in intestinal motility and cognitive function.
“Our study provides first-of-its-kind evidence that examined a wide spectrum of bowel movement frequency, especially an analysis of the more frequent end, in relation to cognitive function,” Dr. Ma said.
The analysis involved data from 112,753 women and men from the Nurses’ Health Study (aged 30-55 years), the Nurses’ Health Study II (aged 25-42), and the Health Professionals Follow-up Study (aged 40-75).
Data on participants’ bowel movement frequency was collected between 2012 and 2013, and self-assessments of cognitive function were obtained from 2014 to 2017. A subgroup of 12,696 participants completed a standard neuropsychological test battery for objective cognitive assessment between 2014 and 2018.
The results show that bowel movement frequency was associated with overall objective cognitive function and learning and working memory in an inverse J-shape dose-response manner (both P for nonlinearity < .05).
Compared with adults who had one bowel movement daily, those who only had a bowel movement every 3 or more days had significantly worse cognition, equivalent to 3 years of additional aging (95% confidence interval, 1.2-4.7).
The researchers also observed similar J-shape dose-response relationships of bowel movement frequency with the odds of subjective cognitive decline and the likelihood of having more subjective cognitive complaints over time.
Compared with once-daily bowel movements, having bowel movements every 3 or more days was associated with a greater likelihood of subjective cognitive decline (odds ratio, 1.73; 95% CI, 1.60-1.86).
These relationships were generally consistent across the three cohorts and subgroups.
“These results stress the importance of clinicians discussing gut health, especially constipation, with their older patients,” senior investigator Dong Wang, MD, ScD, with Harvard Medical School and Brigham and Women’s Hospital, said in a conference statement.
“Interventions for preventing constipation and improving gut health include adopting healthy diets enriched with high-fiber and high-polyphenol foods such as fruits, vegetables, and whole grains; taking fiber supplementation; drinking plenty of water every day; and having regular physical activity,” Dr. Wang added.
The researchers also explored the role of the gut microbiome in the association between bowel movement frequency and cognitive function in a subgroup of 515 women and men.
They found that bowel movement frequency and subjective cognition were significantly associated with the overall variation of the gut microbiome (both P < .005) and specific microbial species.
“This research adds further evidence for a link between the microbiome and gastrointestinal function with cognitive function,” Dr. Ma said in an interview.
Interconnected systems
Commenting on the study in a conference statement, Heather M. Snyder, PhD, vice president of medical and scientific relations at the Alzheimer’s Association, noted that “our body systems are all interconnected. When one system is malfunctioning, it impacts other systems. When that dysfunction isn’t addressed, it can create a waterfall of consequences for the rest of the body.”
Dr. Snyder cautioned, however, that “there are a lot of unanswered questions about the connection between the health of our digestive system and our long-term cognitive function. Answering these questions may uncover novel therapeutic and risk-reduction approaches for Alzheimer’s and other dementias.”
In an interview, Percy Griffin, PhD, director of scientific engagement at the Alzheimer’s Association, noted that the U.S. Study to Protect Brain Health Through Lifestyle Intervention to Reduce Risk, is evaluating the impact of behavioral interventions on the gut-brain axis.
“We want to better understand how engaging in healthier habits can impact microorganisms in the gut and how changes in gut bacteria relate to brain health,” Dr. Griffin said.
The study was funded by the National Institutes of Health. Dr. Ma, Dr. Wang, Dr. Snyder, and Dr. Griffin have no relevant disclosures.
A version of this article first appeared on Medscape.com.
FROM AAIC 2023
Retinal thickness a new predictor of MS disability?
The researchers measured retinal thickness using optical coherence tomography (OCT) within 3 months of diagnosis for more than 230 patients with MS and found that thinning of the retina was associated with a more than fourfold increased risk of Expanded Disability Status Scale (EDSS) scores of at least 3.0.
The OCT “basically tells you how much nerve layer is left in the glass,” said study investigator Gabriel Bsteh, MD, PhD, department of neurology, Medical University of Vienna.
This “could potentially inform treatment strategies, but that is another direction which will be investigated hopefully in the near future,” he added. However, the imaging technique cannot be used for all patients and is currently not widely available.
Dr. Bsteh presented the results at the annual meeting of the European Academy of Neurology.
Retinal layers of interest
OCT produces images of the retina and measures its thickness, Dr. Bsteh explained. Of greatest interest and relevance to patients with MS are two layers – the peripapillary retinal nerve fiber layer (pRNFL) and the ganglion cell and inner plexiform layer (GCL), which are associated with “future physical and cognitive disability and brain atrophy, and are reliable biomarkers of axonal damage.”
However, he said, what is not yet known is whether the baseline thickness of these two layers independently predicts progression of disability in patients with newly diagnosed disease within the framework of all of the other known risk factors.
To investigate, the team used data from ViennOCTiMS, an ongoing prospective observational cohort study conducted in Vienna and Innsbruck. For the analysis, they included patients newly diagnosed with relapsing MS using the 2017 McDonald criteria.
Study participants were required to undergo a spectral-domain OCT scan within 90 days of diagnosis and within 270 days of symptom onset. They also had to undergo follow-up of at least 12 months.
Among 231 patients included in the study, 74 were female, and the mean age was 30.3 years.
Dr. Bsteh noted that disease duration was short. There was a median of 45 days between initial diagnosis and the OCT scan. The median number of T2 lesions on MRI was 11, with 59.3% of patients had at least 10 lesions.
At baseline, 13.0% of patients were not receiving drug therapy, although they were advised to do so, said Dr. Bsteh. A total of 59.7% of patients received “moderately effective” disease-modifying treatments, while 27.3% were treated with “highly effective” DMTs.
Independent predictors of disability
To determine the contribution of retinal thickness to the risk of developing EDSS of 3.0 or more, the researchers conducted a multivariate analysis that accounted for patient age and sex, the type of first relapse, the remission of first relapse symptoms, the presence of oligoclonal bands, the baseline number of T2 lesions, and the use and type of DMT.
After approximately 96 months of follow-up, a pRNFL thickness of 88 mcm or less at baseline was associated with a hazard ratio for EDSS of at least 3.0 versus a thickness of greater than 88 mcm of 4.0 (P < .001), Dr. Bsteh reported.
Similarly, a GCL thickness of less than 77 mcm at baseline was associated with a HR for EDSS of at least 3.0 of 5.1 (P < .001).
Subgroup analysis indicated that both measures of retinal thickness were indeed independent predictors of EDSS. Dr. Bsteh said: “It was encouraging to see that all the unknown prognostic factor factors performed within the expected framework.”
For example, there was a notable association between the risk of EDSS of at least 3.0 and patient age, as well as with incomplete remission and a greater number of lesions on MRI.
Dr. Bsteh said it was also “very encouraging” to find that high-efficacy DMT was associated with a reduced risk of EDSS of at least 3.0.
Strengths, limitations
Turning to the relatively recently described progression independent of relapse activity, Dr. Bsteh showed that both pRNFL of 88 mcm or less and GCL less than 77 mcm were significantly associated with the development of PIRA, compared with greater thickness, at HRs of 3.1 and 4.1, respectively (P < .001 for both).
Subgroup analysis again supported the independent contribution of retinal thickness to the risk of PIRA and revealed similar associations with known risk factors, although the contribution of highly effective DMT was of borderline significance for this outcome.
Interestingly, neither pRNFL of 88 mcm or less nor GCL less than 77 mcm was significantly associated with the time to second clinical attack, “which is basically the correlation of the inflammatory activity” in MS, said Dr. Bsteh.
This, he continued, “goes back to the basic theory that EDSS, PIRA, and neurodegenerative problems are associated with the OCT but not the degree of inflammatory activity.
“As good as all that sounds, there are of course, some limitations” to the study, Dr. Bsteh acknowledged.
The most important limitation is that the changes measured on OCT were “not specific to multiple sclerosis,” and the thickness of the layers “can be influenced by a lot of other factors,” in particular by eye conditions such as glaucoma and diabetes mellitus.
In addition, OCT is not reliable for patients with myopia of more than four to six diopters and for those with retinal comorbidities, such as optic drusen. Dr. Bsteh also pointed out that automatic segmentation in OCT requires stringent quality control.
However, the “biggest problem for the deployment of OCT in the clinical routine is its lack of availability. It’s not very easy for neurologists to procure an OCT,” said Dr. Bsteh.
“You can always create it with your ophthalmologist of trust, but you have to know what you’re looking for,” he added.
Important research
Commenting on the study, Giancarlo Comi, MD, honorary professor of neurology at the Università Vita Salute San Raffaele and founder and director of the Institute of Experimental Neurology at the Scientific Institute San Raffaele, both in Milan, characterized the research as “very, very important and interesting.”
However, he said that he was a “bit surprised” that it showed no association between OCT measures and the second clinical attack, noting that longitudinal research by his team found such an association.
Dr. Comi added that the “key point” from the current study is that there was no such association in the early phase of the disease, which suggests that the amount of inflammatory activity “is not so relevant” in determining the degree of damage seen on OCT at that point.
Dr. Bsteh said he partially agreed with Dr. Comi, adding that “it depends on what you adjust for.
“If we did the same analysis without adjusting for the number of MRI lesions, we would see an association with second clinical attack,” he said. However, the aim of the current study was to determine the independent contribution of retinal thickness, “and that’s why we tried to adjust to everything which was available to us.”
Dr. Bsteh also underlined that it was a cross-sectional analysis conducted “very, very early” in the MS disease course, and “so the inflammatory activity did not yet have a chance to influence the thickness on the OCT.”
Had OCT been performed later in the disease course, inflammatory activity might have influenced the findings, but the intention of the study was to use it “as an early marker to try to stratify patients who are at risk, and [those] who are maybe a little less at risk, and inform the treatment strategy.”
Maria Assunta Rocca, MD, associate professor of neurology at Università Vita Salute San Raffaele, and head of neuroimaging of the CNS white matter unit at IRCCS San Raffaele Scientific Institute, Milan, who cochaired the session in which the study was presented, asked whether the researchers analyzed patients with optic neuritis separately from those without and whether it affected the predictive factors.
Dr. Bsteh said that OCT cannot be used for patients with bilateral optic neuritis and so they were excluded from the study, but for patients who were affected unilaterally, the contralateral eye was assessed.
This underlines why OCT contributes the most when used early on the disease course. “The longer the disease has time, the higher the likelihood that optic neuritis has developed,” he said.
Funding for the study was provided by Mindset Technologies. All authors are, or were, employees and/or shareholders of Mindset Technologies. Dr. Bsteh has relationships with Biogen, Celgene/Bristol-Myers Squibb, Lilly, Merck, Novartis, Roche, Sanofi Genzyme, and Teva.
A version of this article appeared on Medscape.com.
The researchers measured retinal thickness using optical coherence tomography (OCT) within 3 months of diagnosis for more than 230 patients with MS and found that thinning of the retina was associated with a more than fourfold increased risk of Expanded Disability Status Scale (EDSS) scores of at least 3.0.
The OCT “basically tells you how much nerve layer is left in the glass,” said study investigator Gabriel Bsteh, MD, PhD, department of neurology, Medical University of Vienna.
This “could potentially inform treatment strategies, but that is another direction which will be investigated hopefully in the near future,” he added. However, the imaging technique cannot be used for all patients and is currently not widely available.
Dr. Bsteh presented the results at the annual meeting of the European Academy of Neurology.
Retinal layers of interest
OCT produces images of the retina and measures its thickness, Dr. Bsteh explained. Of greatest interest and relevance to patients with MS are two layers – the peripapillary retinal nerve fiber layer (pRNFL) and the ganglion cell and inner plexiform layer (GCL), which are associated with “future physical and cognitive disability and brain atrophy, and are reliable biomarkers of axonal damage.”
However, he said, what is not yet known is whether the baseline thickness of these two layers independently predicts progression of disability in patients with newly diagnosed disease within the framework of all of the other known risk factors.
To investigate, the team used data from ViennOCTiMS, an ongoing prospective observational cohort study conducted in Vienna and Innsbruck. For the analysis, they included patients newly diagnosed with relapsing MS using the 2017 McDonald criteria.
Study participants were required to undergo a spectral-domain OCT scan within 90 days of diagnosis and within 270 days of symptom onset. They also had to undergo follow-up of at least 12 months.
Among 231 patients included in the study, 74 were female, and the mean age was 30.3 years.
Dr. Bsteh noted that disease duration was short. There was a median of 45 days between initial diagnosis and the OCT scan. The median number of T2 lesions on MRI was 11, with 59.3% of patients had at least 10 lesions.
At baseline, 13.0% of patients were not receiving drug therapy, although they were advised to do so, said Dr. Bsteh. A total of 59.7% of patients received “moderately effective” disease-modifying treatments, while 27.3% were treated with “highly effective” DMTs.
Independent predictors of disability
To determine the contribution of retinal thickness to the risk of developing EDSS of 3.0 or more, the researchers conducted a multivariate analysis that accounted for patient age and sex, the type of first relapse, the remission of first relapse symptoms, the presence of oligoclonal bands, the baseline number of T2 lesions, and the use and type of DMT.
After approximately 96 months of follow-up, a pRNFL thickness of 88 mcm or less at baseline was associated with a hazard ratio for EDSS of at least 3.0 versus a thickness of greater than 88 mcm of 4.0 (P < .001), Dr. Bsteh reported.
Similarly, a GCL thickness of less than 77 mcm at baseline was associated with a HR for EDSS of at least 3.0 of 5.1 (P < .001).
Subgroup analysis indicated that both measures of retinal thickness were indeed independent predictors of EDSS. Dr. Bsteh said: “It was encouraging to see that all the unknown prognostic factor factors performed within the expected framework.”
For example, there was a notable association between the risk of EDSS of at least 3.0 and patient age, as well as with incomplete remission and a greater number of lesions on MRI.
Dr. Bsteh said it was also “very encouraging” to find that high-efficacy DMT was associated with a reduced risk of EDSS of at least 3.0.
Strengths, limitations
Turning to the relatively recently described progression independent of relapse activity, Dr. Bsteh showed that both pRNFL of 88 mcm or less and GCL less than 77 mcm were significantly associated with the development of PIRA, compared with greater thickness, at HRs of 3.1 and 4.1, respectively (P < .001 for both).
Subgroup analysis again supported the independent contribution of retinal thickness to the risk of PIRA and revealed similar associations with known risk factors, although the contribution of highly effective DMT was of borderline significance for this outcome.
Interestingly, neither pRNFL of 88 mcm or less nor GCL less than 77 mcm was significantly associated with the time to second clinical attack, “which is basically the correlation of the inflammatory activity” in MS, said Dr. Bsteh.
This, he continued, “goes back to the basic theory that EDSS, PIRA, and neurodegenerative problems are associated with the OCT but not the degree of inflammatory activity.
“As good as all that sounds, there are of course, some limitations” to the study, Dr. Bsteh acknowledged.
The most important limitation is that the changes measured on OCT were “not specific to multiple sclerosis,” and the thickness of the layers “can be influenced by a lot of other factors,” in particular by eye conditions such as glaucoma and diabetes mellitus.
In addition, OCT is not reliable for patients with myopia of more than four to six diopters and for those with retinal comorbidities, such as optic drusen. Dr. Bsteh also pointed out that automatic segmentation in OCT requires stringent quality control.
However, the “biggest problem for the deployment of OCT in the clinical routine is its lack of availability. It’s not very easy for neurologists to procure an OCT,” said Dr. Bsteh.
“You can always create it with your ophthalmologist of trust, but you have to know what you’re looking for,” he added.
Important research
Commenting on the study, Giancarlo Comi, MD, honorary professor of neurology at the Università Vita Salute San Raffaele and founder and director of the Institute of Experimental Neurology at the Scientific Institute San Raffaele, both in Milan, characterized the research as “very, very important and interesting.”
However, he said that he was a “bit surprised” that it showed no association between OCT measures and the second clinical attack, noting that longitudinal research by his team found such an association.
Dr. Comi added that the “key point” from the current study is that there was no such association in the early phase of the disease, which suggests that the amount of inflammatory activity “is not so relevant” in determining the degree of damage seen on OCT at that point.
Dr. Bsteh said he partially agreed with Dr. Comi, adding that “it depends on what you adjust for.
“If we did the same analysis without adjusting for the number of MRI lesions, we would see an association with second clinical attack,” he said. However, the aim of the current study was to determine the independent contribution of retinal thickness, “and that’s why we tried to adjust to everything which was available to us.”
Dr. Bsteh also underlined that it was a cross-sectional analysis conducted “very, very early” in the MS disease course, and “so the inflammatory activity did not yet have a chance to influence the thickness on the OCT.”
Had OCT been performed later in the disease course, inflammatory activity might have influenced the findings, but the intention of the study was to use it “as an early marker to try to stratify patients who are at risk, and [those] who are maybe a little less at risk, and inform the treatment strategy.”
Maria Assunta Rocca, MD, associate professor of neurology at Università Vita Salute San Raffaele, and head of neuroimaging of the CNS white matter unit at IRCCS San Raffaele Scientific Institute, Milan, who cochaired the session in which the study was presented, asked whether the researchers analyzed patients with optic neuritis separately from those without and whether it affected the predictive factors.
Dr. Bsteh said that OCT cannot be used for patients with bilateral optic neuritis and so they were excluded from the study, but for patients who were affected unilaterally, the contralateral eye was assessed.
This underlines why OCT contributes the most when used early on the disease course. “The longer the disease has time, the higher the likelihood that optic neuritis has developed,” he said.
Funding for the study was provided by Mindset Technologies. All authors are, or were, employees and/or shareholders of Mindset Technologies. Dr. Bsteh has relationships with Biogen, Celgene/Bristol-Myers Squibb, Lilly, Merck, Novartis, Roche, Sanofi Genzyme, and Teva.
A version of this article appeared on Medscape.com.
The researchers measured retinal thickness using optical coherence tomography (OCT) within 3 months of diagnosis for more than 230 patients with MS and found that thinning of the retina was associated with a more than fourfold increased risk of Expanded Disability Status Scale (EDSS) scores of at least 3.0.
The OCT “basically tells you how much nerve layer is left in the glass,” said study investigator Gabriel Bsteh, MD, PhD, department of neurology, Medical University of Vienna.
This “could potentially inform treatment strategies, but that is another direction which will be investigated hopefully in the near future,” he added. However, the imaging technique cannot be used for all patients and is currently not widely available.
Dr. Bsteh presented the results at the annual meeting of the European Academy of Neurology.
Retinal layers of interest
OCT produces images of the retina and measures its thickness, Dr. Bsteh explained. Of greatest interest and relevance to patients with MS are two layers – the peripapillary retinal nerve fiber layer (pRNFL) and the ganglion cell and inner plexiform layer (GCL), which are associated with “future physical and cognitive disability and brain atrophy, and are reliable biomarkers of axonal damage.”
However, he said, what is not yet known is whether the baseline thickness of these two layers independently predicts progression of disability in patients with newly diagnosed disease within the framework of all of the other known risk factors.
To investigate, the team used data from ViennOCTiMS, an ongoing prospective observational cohort study conducted in Vienna and Innsbruck. For the analysis, they included patients newly diagnosed with relapsing MS using the 2017 McDonald criteria.
Study participants were required to undergo a spectral-domain OCT scan within 90 days of diagnosis and within 270 days of symptom onset. They also had to undergo follow-up of at least 12 months.
Among 231 patients included in the study, 74 were female, and the mean age was 30.3 years.
Dr. Bsteh noted that disease duration was short. There was a median of 45 days between initial diagnosis and the OCT scan. The median number of T2 lesions on MRI was 11, with 59.3% of patients had at least 10 lesions.
At baseline, 13.0% of patients were not receiving drug therapy, although they were advised to do so, said Dr. Bsteh. A total of 59.7% of patients received “moderately effective” disease-modifying treatments, while 27.3% were treated with “highly effective” DMTs.
Independent predictors of disability
To determine the contribution of retinal thickness to the risk of developing EDSS of 3.0 or more, the researchers conducted a multivariate analysis that accounted for patient age and sex, the type of first relapse, the remission of first relapse symptoms, the presence of oligoclonal bands, the baseline number of T2 lesions, and the use and type of DMT.
After approximately 96 months of follow-up, a pRNFL thickness of 88 mcm or less at baseline was associated with a hazard ratio for EDSS of at least 3.0 versus a thickness of greater than 88 mcm of 4.0 (P < .001), Dr. Bsteh reported.
Similarly, a GCL thickness of less than 77 mcm at baseline was associated with a HR for EDSS of at least 3.0 of 5.1 (P < .001).
Subgroup analysis indicated that both measures of retinal thickness were indeed independent predictors of EDSS. Dr. Bsteh said: “It was encouraging to see that all the unknown prognostic factor factors performed within the expected framework.”
For example, there was a notable association between the risk of EDSS of at least 3.0 and patient age, as well as with incomplete remission and a greater number of lesions on MRI.
Dr. Bsteh said it was also “very encouraging” to find that high-efficacy DMT was associated with a reduced risk of EDSS of at least 3.0.
Strengths, limitations
Turning to the relatively recently described progression independent of relapse activity, Dr. Bsteh showed that both pRNFL of 88 mcm or less and GCL less than 77 mcm were significantly associated with the development of PIRA, compared with greater thickness, at HRs of 3.1 and 4.1, respectively (P < .001 for both).
Subgroup analysis again supported the independent contribution of retinal thickness to the risk of PIRA and revealed similar associations with known risk factors, although the contribution of highly effective DMT was of borderline significance for this outcome.
Interestingly, neither pRNFL of 88 mcm or less nor GCL less than 77 mcm was significantly associated with the time to second clinical attack, “which is basically the correlation of the inflammatory activity” in MS, said Dr. Bsteh.
This, he continued, “goes back to the basic theory that EDSS, PIRA, and neurodegenerative problems are associated with the OCT but not the degree of inflammatory activity.
“As good as all that sounds, there are of course, some limitations” to the study, Dr. Bsteh acknowledged.
The most important limitation is that the changes measured on OCT were “not specific to multiple sclerosis,” and the thickness of the layers “can be influenced by a lot of other factors,” in particular by eye conditions such as glaucoma and diabetes mellitus.
In addition, OCT is not reliable for patients with myopia of more than four to six diopters and for those with retinal comorbidities, such as optic drusen. Dr. Bsteh also pointed out that automatic segmentation in OCT requires stringent quality control.
However, the “biggest problem for the deployment of OCT in the clinical routine is its lack of availability. It’s not very easy for neurologists to procure an OCT,” said Dr. Bsteh.
“You can always create it with your ophthalmologist of trust, but you have to know what you’re looking for,” he added.
Important research
Commenting on the study, Giancarlo Comi, MD, honorary professor of neurology at the Università Vita Salute San Raffaele and founder and director of the Institute of Experimental Neurology at the Scientific Institute San Raffaele, both in Milan, characterized the research as “very, very important and interesting.”
However, he said that he was a “bit surprised” that it showed no association between OCT measures and the second clinical attack, noting that longitudinal research by his team found such an association.
Dr. Comi added that the “key point” from the current study is that there was no such association in the early phase of the disease, which suggests that the amount of inflammatory activity “is not so relevant” in determining the degree of damage seen on OCT at that point.
Dr. Bsteh said he partially agreed with Dr. Comi, adding that “it depends on what you adjust for.
“If we did the same analysis without adjusting for the number of MRI lesions, we would see an association with second clinical attack,” he said. However, the aim of the current study was to determine the independent contribution of retinal thickness, “and that’s why we tried to adjust to everything which was available to us.”
Dr. Bsteh also underlined that it was a cross-sectional analysis conducted “very, very early” in the MS disease course, and “so the inflammatory activity did not yet have a chance to influence the thickness on the OCT.”
Had OCT been performed later in the disease course, inflammatory activity might have influenced the findings, but the intention of the study was to use it “as an early marker to try to stratify patients who are at risk, and [those] who are maybe a little less at risk, and inform the treatment strategy.”
Maria Assunta Rocca, MD, associate professor of neurology at Università Vita Salute San Raffaele, and head of neuroimaging of the CNS white matter unit at IRCCS San Raffaele Scientific Institute, Milan, who cochaired the session in which the study was presented, asked whether the researchers analyzed patients with optic neuritis separately from those without and whether it affected the predictive factors.
Dr. Bsteh said that OCT cannot be used for patients with bilateral optic neuritis and so they were excluded from the study, but for patients who were affected unilaterally, the contralateral eye was assessed.
This underlines why OCT contributes the most when used early on the disease course. “The longer the disease has time, the higher the likelihood that optic neuritis has developed,” he said.
Funding for the study was provided by Mindset Technologies. All authors are, or were, employees and/or shareholders of Mindset Technologies. Dr. Bsteh has relationships with Biogen, Celgene/Bristol-Myers Squibb, Lilly, Merck, Novartis, Roche, Sanofi Genzyme, and Teva.
A version of this article appeared on Medscape.com.
FROM EAN 2023
Quizartinib boosts AML survival, regardless of SCT
The research shows that “FLT3 inhibitors are most effective in patients who are minimal residual disease (MRD) positive before allo-HCT,” first author Richard Schlenk, MD, of Heidelberg (Germany) University Hospital and the German Cancer Research Center, Heidelberg, said in an interview.
The findings are from a post-hoc analysis of the phase 3, multicenter QuANTUM-First trial, which involved patients with the FLT3-ITD mutation, who make up about a quarter of those with AML and who can have shorter survival and increased risk of relapse, compared with patients without the mutation. The current post-hoc analysis of the trial was presented at the European Hematology Association 2023 Congress.
The trial, published in April in The Lancet, showed significant benefits in newly diagnosed patients with FLT3-ITD AML who were treated with quizartinib and standard induction and consolidation therapy and then continued on quizartinib as monotherapy for up to 3 years.
In the trial, quizartinib, combined with standard cytarabine and anthracycline induction and standard cytarabine consolidation chemotherapy, and continued as monotherapy following consolidation, was associated with a significant improvement in overall survival versus placebo (median 31.9 months versus 15.1 months, respectively; hazard ratio, 0.776; P = .0324).
For the post hoc analysis of the trial, the authors sought to evaluate if the effects were observed regardless of whether or not allo-HCT was received – which may not be recommended when patients go into remission after the first round of chemotherapy. The issue is important, as efficacy of other targeted therapy with the FLT3 inhibitors has been associated with allo-HCT treatment.
“Midostaurin, for example is mostly effective if [the drug] is followed by allo-HCT, and much less effective [no significant improvement] without allo-HCT,” Dr. Schlenk said.
The authors also sought to evaluate the relationship between minimal residual disease (MRD) prior to allo-HCT in FLT3-ITD and overall survival.
For the trial, 539 patients, with a median age of 56 were randomized to quizartinib (n = 268) or placebo (n = 271), and 147 patients (54.9%) in the quizartinib arm and 150 (55.4%) in the placebo arm achieved complete remission after induction. The rates of incomplete hematologic recovery (CRi) were 16.8% and 9.6%, respectively.
Of those achieving complete remission, 57.1% of patients on quizartinib and 48.7% of those receiving placebo underwent allo-HCT in the first complete remission. The median time to allo-HCT in the two groups was 3.5 months with quizartinib and 3.3 months for placebo.
Following the completion of allo-HCT, 61 patients (72.6%) receiving quizartinib and 36 (49.3%) receiving placebo started 3 years of continuation monotherapy.
In addition, 115 patients received allo-HCT outside of CR1, including 60 on quizartinib and 55 on placebo.
After adjustment for factors including region, age, and white blood count, patients treated with quizartinib treatment had a significantly higher overall survival (HR, 0.770; P = .0284), as did those receiving allo-HCT in CR1 (HR, 0.424; P < .0001).
Furthermore, patients receiving quizartinib had a longer overall survival regardless of whether they received allo-HCT in CR1 or not.
Of note, quizartinib-treated patients who were MRD positive prior to their allo-HCT transplant had a longer overall survival versus placebo (HR, 0.471); as did those who were MRD negative (HR, 0.717), to a lesser degree.
There were no new safety signals identified among patients undergoing allo-HCT.
Of note, cytomegalovirus infection was more common in the quizartinib group (11.8%) versus placebo (5.5%), while decreased appetite was less common with quizartinib (2.9%) versus placebo (12.1%).
Asked by an audience member about any risk of graft-versus-host disease (GVHD), Dr. Schlenk noted that “no difference between the quizartinib and placebo arms has been observed in GVHD acute and chronic.”
He added that patients “appear to benefit more from quizartinib if they have higher allelic frequency versus lower, overall,” and that younger patients, in general, showed greater benefit from quizartinib versus those over 60.
In general, “we see that for patients receiving allo-HCT transplantation, it’s beneficial to be randomized in the quizartinib arm [while] patients who did not undergo allo-HCT in first complete remission benefit equally when treated with quizartinib versus placebo,” he said in presenting the findings at the EHA meeting.
“And irrespective of pre–allo-HCT MRD status, longer survival was observed in those treated with quizartinib versus placebo, but most benefit was observed in those who were MRD positive.”
Quizartinib was approved in Japan this year in combination with chemotherapy for patients with newly diagnosed AML whose tumors harbor FLT3-ITD mutations.
The drug was granted a priority review by the U.S. Food and Drug Administration in October 2022. While the target action date was in April, a new decision date of July 21, 2023, is expected.
The study was sponsored by Daiichi Sankyo. Dr. Schlenk reported relationships with Daiichi Sankyo and other companies.
The research shows that “FLT3 inhibitors are most effective in patients who are minimal residual disease (MRD) positive before allo-HCT,” first author Richard Schlenk, MD, of Heidelberg (Germany) University Hospital and the German Cancer Research Center, Heidelberg, said in an interview.
The findings are from a post-hoc analysis of the phase 3, multicenter QuANTUM-First trial, which involved patients with the FLT3-ITD mutation, who make up about a quarter of those with AML and who can have shorter survival and increased risk of relapse, compared with patients without the mutation. The current post-hoc analysis of the trial was presented at the European Hematology Association 2023 Congress.
The trial, published in April in The Lancet, showed significant benefits in newly diagnosed patients with FLT3-ITD AML who were treated with quizartinib and standard induction and consolidation therapy and then continued on quizartinib as monotherapy for up to 3 years.
In the trial, quizartinib, combined with standard cytarabine and anthracycline induction and standard cytarabine consolidation chemotherapy, and continued as monotherapy following consolidation, was associated with a significant improvement in overall survival versus placebo (median 31.9 months versus 15.1 months, respectively; hazard ratio, 0.776; P = .0324).
For the post hoc analysis of the trial, the authors sought to evaluate if the effects were observed regardless of whether or not allo-HCT was received – which may not be recommended when patients go into remission after the first round of chemotherapy. The issue is important, as efficacy of other targeted therapy with the FLT3 inhibitors has been associated with allo-HCT treatment.
“Midostaurin, for example is mostly effective if [the drug] is followed by allo-HCT, and much less effective [no significant improvement] without allo-HCT,” Dr. Schlenk said.
The authors also sought to evaluate the relationship between minimal residual disease (MRD) prior to allo-HCT in FLT3-ITD and overall survival.
For the trial, 539 patients, with a median age of 56 were randomized to quizartinib (n = 268) or placebo (n = 271), and 147 patients (54.9%) in the quizartinib arm and 150 (55.4%) in the placebo arm achieved complete remission after induction. The rates of incomplete hematologic recovery (CRi) were 16.8% and 9.6%, respectively.
Of those achieving complete remission, 57.1% of patients on quizartinib and 48.7% of those receiving placebo underwent allo-HCT in the first complete remission. The median time to allo-HCT in the two groups was 3.5 months with quizartinib and 3.3 months for placebo.
Following the completion of allo-HCT, 61 patients (72.6%) receiving quizartinib and 36 (49.3%) receiving placebo started 3 years of continuation monotherapy.
In addition, 115 patients received allo-HCT outside of CR1, including 60 on quizartinib and 55 on placebo.
After adjustment for factors including region, age, and white blood count, patients treated with quizartinib treatment had a significantly higher overall survival (HR, 0.770; P = .0284), as did those receiving allo-HCT in CR1 (HR, 0.424; P < .0001).
Furthermore, patients receiving quizartinib had a longer overall survival regardless of whether they received allo-HCT in CR1 or not.
Of note, quizartinib-treated patients who were MRD positive prior to their allo-HCT transplant had a longer overall survival versus placebo (HR, 0.471); as did those who were MRD negative (HR, 0.717), to a lesser degree.
There were no new safety signals identified among patients undergoing allo-HCT.
Of note, cytomegalovirus infection was more common in the quizartinib group (11.8%) versus placebo (5.5%), while decreased appetite was less common with quizartinib (2.9%) versus placebo (12.1%).
Asked by an audience member about any risk of graft-versus-host disease (GVHD), Dr. Schlenk noted that “no difference between the quizartinib and placebo arms has been observed in GVHD acute and chronic.”
He added that patients “appear to benefit more from quizartinib if they have higher allelic frequency versus lower, overall,” and that younger patients, in general, showed greater benefit from quizartinib versus those over 60.
In general, “we see that for patients receiving allo-HCT transplantation, it’s beneficial to be randomized in the quizartinib arm [while] patients who did not undergo allo-HCT in first complete remission benefit equally when treated with quizartinib versus placebo,” he said in presenting the findings at the EHA meeting.
“And irrespective of pre–allo-HCT MRD status, longer survival was observed in those treated with quizartinib versus placebo, but most benefit was observed in those who were MRD positive.”
Quizartinib was approved in Japan this year in combination with chemotherapy for patients with newly diagnosed AML whose tumors harbor FLT3-ITD mutations.
The drug was granted a priority review by the U.S. Food and Drug Administration in October 2022. While the target action date was in April, a new decision date of July 21, 2023, is expected.
The study was sponsored by Daiichi Sankyo. Dr. Schlenk reported relationships with Daiichi Sankyo and other companies.
The research shows that “FLT3 inhibitors are most effective in patients who are minimal residual disease (MRD) positive before allo-HCT,” first author Richard Schlenk, MD, of Heidelberg (Germany) University Hospital and the German Cancer Research Center, Heidelberg, said in an interview.
The findings are from a post-hoc analysis of the phase 3, multicenter QuANTUM-First trial, which involved patients with the FLT3-ITD mutation, who make up about a quarter of those with AML and who can have shorter survival and increased risk of relapse, compared with patients without the mutation. The current post-hoc analysis of the trial was presented at the European Hematology Association 2023 Congress.
The trial, published in April in The Lancet, showed significant benefits in newly diagnosed patients with FLT3-ITD AML who were treated with quizartinib and standard induction and consolidation therapy and then continued on quizartinib as monotherapy for up to 3 years.
In the trial, quizartinib, combined with standard cytarabine and anthracycline induction and standard cytarabine consolidation chemotherapy, and continued as monotherapy following consolidation, was associated with a significant improvement in overall survival versus placebo (median 31.9 months versus 15.1 months, respectively; hazard ratio, 0.776; P = .0324).
For the post hoc analysis of the trial, the authors sought to evaluate if the effects were observed regardless of whether or not allo-HCT was received – which may not be recommended when patients go into remission after the first round of chemotherapy. The issue is important, as efficacy of other targeted therapy with the FLT3 inhibitors has been associated with allo-HCT treatment.
“Midostaurin, for example is mostly effective if [the drug] is followed by allo-HCT, and much less effective [no significant improvement] without allo-HCT,” Dr. Schlenk said.
The authors also sought to evaluate the relationship between minimal residual disease (MRD) prior to allo-HCT in FLT3-ITD and overall survival.
For the trial, 539 patients, with a median age of 56 were randomized to quizartinib (n = 268) or placebo (n = 271), and 147 patients (54.9%) in the quizartinib arm and 150 (55.4%) in the placebo arm achieved complete remission after induction. The rates of incomplete hematologic recovery (CRi) were 16.8% and 9.6%, respectively.
Of those achieving complete remission, 57.1% of patients on quizartinib and 48.7% of those receiving placebo underwent allo-HCT in the first complete remission. The median time to allo-HCT in the two groups was 3.5 months with quizartinib and 3.3 months for placebo.
Following the completion of allo-HCT, 61 patients (72.6%) receiving quizartinib and 36 (49.3%) receiving placebo started 3 years of continuation monotherapy.
In addition, 115 patients received allo-HCT outside of CR1, including 60 on quizartinib and 55 on placebo.
After adjustment for factors including region, age, and white blood count, patients treated with quizartinib treatment had a significantly higher overall survival (HR, 0.770; P = .0284), as did those receiving allo-HCT in CR1 (HR, 0.424; P < .0001).
Furthermore, patients receiving quizartinib had a longer overall survival regardless of whether they received allo-HCT in CR1 or not.
Of note, quizartinib-treated patients who were MRD positive prior to their allo-HCT transplant had a longer overall survival versus placebo (HR, 0.471); as did those who were MRD negative (HR, 0.717), to a lesser degree.
There were no new safety signals identified among patients undergoing allo-HCT.
Of note, cytomegalovirus infection was more common in the quizartinib group (11.8%) versus placebo (5.5%), while decreased appetite was less common with quizartinib (2.9%) versus placebo (12.1%).
Asked by an audience member about any risk of graft-versus-host disease (GVHD), Dr. Schlenk noted that “no difference between the quizartinib and placebo arms has been observed in GVHD acute and chronic.”
He added that patients “appear to benefit more from quizartinib if they have higher allelic frequency versus lower, overall,” and that younger patients, in general, showed greater benefit from quizartinib versus those over 60.
In general, “we see that for patients receiving allo-HCT transplantation, it’s beneficial to be randomized in the quizartinib arm [while] patients who did not undergo allo-HCT in first complete remission benefit equally when treated with quizartinib versus placebo,” he said in presenting the findings at the EHA meeting.
“And irrespective of pre–allo-HCT MRD status, longer survival was observed in those treated with quizartinib versus placebo, but most benefit was observed in those who were MRD positive.”
Quizartinib was approved in Japan this year in combination with chemotherapy for patients with newly diagnosed AML whose tumors harbor FLT3-ITD mutations.
The drug was granted a priority review by the U.S. Food and Drug Administration in October 2022. While the target action date was in April, a new decision date of July 21, 2023, is expected.
The study was sponsored by Daiichi Sankyo. Dr. Schlenk reported relationships with Daiichi Sankyo and other companies.
FROM THE EHA 2023 CONGRESS
Promising phase 3 results for Alzheimer’s drug donanemab
results of a phase 3 study showed.
“This trial demonstrates that an antiamyloid drug significantly slows the disease and provides meaningful benefit to patients, and we’re hoping that with approval, we will be able to make that drug available,” said Mark Mintun, MD, VP, pain and neurodegeneration research, Eli Lilly.
At a press briefing highlighting the new results, Maria Carrillo, PhD, chief science officer, Alzheimer’s Association, noted the “palpable excitement” surrounding this new study, which follows on the heels of other promising antiamyloid research. “This is the decade of Alzheimer’s disease, and it will get better from here,” she said.
The findings were presented at the Alzheimer’s Association International Conference and were published online in JAMA.
Primary, secondary endpoints met
The TRAILBLAZER-ALZ 2 study included 1,736 patients with mild cognitive impairment (MCI) or mild dementia for whom PET showed evidence of amyloid and tau pathology. The mean age of the participants was 73 years, and most of the participants were White.
Participants were randomly assigned to receive either placebo or donanemab, an investigational IgG1 monoclonal antibody directed against an insoluble, modified, N-terminal, truncated form of beta-amyloid. Donanemab was administered at a dose of 700 mg for the first three doses and 1,400 mg thereafter. The drug was administered intravenously every 4 weeks for up to 72 weeks.
Researchers stratified patients on the basis of the amount of tau, a biomarker for Alzheimer’s disease progression, into a low/medium tau group and a combined tau group (low/medium and high tau).
The primary endpoint was change from baseline to 76 weeks on the integrated Alzheimer’s Disease Rating Scale (iADRS), which measures cognition and activities of daily living.
In those with low/medium tau levels, the least squares mean (LSM) change in iADRS score was −6.02 (95% confidence interval, −7.01 to −5.03) in the donanemab group and −9.27 (95% CI, −10.23 to −8.31) in the placebo group (difference, 3.25; 95% CI, 1.88 – 4.62; P < .001), representing a 35.1% slowing of disease progression.
In the combined (tau) population, LSM change in iADRS was −10.19 (95% CI, −11.22 to −9.16) in the donanemab group and −13.11 (95% CI, −14.10 to −12.13) in the placebo group (difference, 2.92; 95% CI, 1.51 – 4.33; P < .001), representing a 22.3% slowing of disease progression.
The study also met all secondary endpoints regarding measurements of cognitive and functional decline, including the Clinical Dementia Rating–Sum of Boxes (CDR-SB), which showed 36% slowing of decline (P < .0001) over 18 months.
The authors noted that the changes on these scales were clinically meaningful (considered to be > 20% slowing of clinical progression) for both the low/medium tau and combined populations.
Greater benefit with lower tau
However, patients with low/medium tau generally demonstrated effect size estimates that were larger than those of the overall population, which suggests there’s greater benefit when amyloid-lowering therapies are initiated at an earlier disease stage, the investigators noted.
Additional support for clinical relevance was a 38.6% risk reduction of disease progression, as measured on the CDR–Global Score.
In addition, participants who received the active drug benefited in terms of activities of daily living, as demonstrated by 40% less decline (P < .0001) on the Alzheimer’s Disease Cooperative Study–Instrumental Activities of Daily Living Inventory.
Donanemab significantly reduced brain amyloid plaque: 80% (low/medium tau population) and 76% (combined population) of participants achieved amyloid clearance at 76 weeks. The intervention was also associated with a greater decrease in whole-brain volume.
The treatment effect continued to widen after patients were switched to placebo, as evidenced on PET scan at 6 or 12 months, said Dr. Mintun.
The effects of the drug were similar among men and women but were especially pronounced among younger participants, with a 48% slowing on iADRS and a 45% slowing on CDR-SB in those younger than 75 years.
Safety issues
However, the drug is not without some safety concerns. Amyloid-related imaging abnormalities (ARIAs) occurred in 36.8% of the treatment group versus 14.9% of the placebo group, and in 40.6% of patients who were homozygous for apo E4 and received the drug. Microhemorrhage occurred in 26.8% in the donanemab group versus 12.5% in the placebo group.
Most ARIA cases were mild to moderate and resolved or stabilized with appropriate management. However, three deaths were determined to be drug related among participants who developed serious ARIAs or brain bleeding and swelling.
An important study limitation was that it enrolled primarily White patients (91.5%), which may limit generalizability to other populations, and the age limit was 85 years, which some believe is an inadequate representation of older adults. In addition, the 18-month treatment window limits the long-term understanding of donanemab’s benefits and side effects.
Eli Lilly has filed a submission to the Food and Drug Administration. If approved, donanemab will be the third antiamyloid monoclonal antibody to receive this status, following aducanumab (Aduhelm) and lecanemab (Leqembi).
Strongest data yet
Commenting on the study findings, Percy Griffin, PhD, director of scientific engagement, Alzheimer’s Association, said these new results are “very, very exciting” and represent “the strongest data to-date” for antiamyloid monoclonal antibodies in Alzheimer’s disease.
“A good percentage of individuals on the drug actually saw a complete clearance of amyloid, and some had to be taken off the drug, because if you’re on an antiamyloid drug and there’s no amyloid, what are you going for?”
He noted that the study had some unique aspects, including using tau-PET “to see whether or not the drug is more effective in subpopulations.”
Access to this and other antiamyloid therapies should be a priority, said Dr. Griffin. “We have to make sure people who have the potential to benefit from these treatments do.”
The Alzheimer’s Association is calling for Medicare beneficiaries who are living with the disease to receive the same coverage afforded to those with other diseases.
“The Centers for Medicare & Medicaid Services policy to block Medicare access to FDA-approved Alzheimer’s disease treatments is in stark contrast to scientific evidence, is unprecedented and must be reversed immediately,” Joanne Pike, DrPH, president and CEO of the Alzheimer’s Association, said in a press release.
Also important is tracking the longitudinal performance of these drugs outside of clinical trials, said Dr. Griffin. “Not everyone is going to be in that Goldilocks zone of being able to see a doctor whenever they want and have access to these PET and MRI tools and other things used in clinical trials.”
He noted that the Alzheimer’s Association is leading a network for diagnostics and therapeutics (ALZ-NET) that will track the performance of novel FDA-approved Alzheimer’s disease therapies “in the real world.”
While these are exciting findings for antiamyloid therapy, “we can’t take our foot off the gas, we need more therapies that target different aspects of the disease biology,” said Dr. Griffin.
A version of this article appeared on Medscape.com.
results of a phase 3 study showed.
“This trial demonstrates that an antiamyloid drug significantly slows the disease and provides meaningful benefit to patients, and we’re hoping that with approval, we will be able to make that drug available,” said Mark Mintun, MD, VP, pain and neurodegeneration research, Eli Lilly.
At a press briefing highlighting the new results, Maria Carrillo, PhD, chief science officer, Alzheimer’s Association, noted the “palpable excitement” surrounding this new study, which follows on the heels of other promising antiamyloid research. “This is the decade of Alzheimer’s disease, and it will get better from here,” she said.
The findings were presented at the Alzheimer’s Association International Conference and were published online in JAMA.
Primary, secondary endpoints met
The TRAILBLAZER-ALZ 2 study included 1,736 patients with mild cognitive impairment (MCI) or mild dementia for whom PET showed evidence of amyloid and tau pathology. The mean age of the participants was 73 years, and most of the participants were White.
Participants were randomly assigned to receive either placebo or donanemab, an investigational IgG1 monoclonal antibody directed against an insoluble, modified, N-terminal, truncated form of beta-amyloid. Donanemab was administered at a dose of 700 mg for the first three doses and 1,400 mg thereafter. The drug was administered intravenously every 4 weeks for up to 72 weeks.
Researchers stratified patients on the basis of the amount of tau, a biomarker for Alzheimer’s disease progression, into a low/medium tau group and a combined tau group (low/medium and high tau).
The primary endpoint was change from baseline to 76 weeks on the integrated Alzheimer’s Disease Rating Scale (iADRS), which measures cognition and activities of daily living.
In those with low/medium tau levels, the least squares mean (LSM) change in iADRS score was −6.02 (95% confidence interval, −7.01 to −5.03) in the donanemab group and −9.27 (95% CI, −10.23 to −8.31) in the placebo group (difference, 3.25; 95% CI, 1.88 – 4.62; P < .001), representing a 35.1% slowing of disease progression.
In the combined (tau) population, LSM change in iADRS was −10.19 (95% CI, −11.22 to −9.16) in the donanemab group and −13.11 (95% CI, −14.10 to −12.13) in the placebo group (difference, 2.92; 95% CI, 1.51 – 4.33; P < .001), representing a 22.3% slowing of disease progression.
The study also met all secondary endpoints regarding measurements of cognitive and functional decline, including the Clinical Dementia Rating–Sum of Boxes (CDR-SB), which showed 36% slowing of decline (P < .0001) over 18 months.
The authors noted that the changes on these scales were clinically meaningful (considered to be > 20% slowing of clinical progression) for both the low/medium tau and combined populations.
Greater benefit with lower tau
However, patients with low/medium tau generally demonstrated effect size estimates that were larger than those of the overall population, which suggests there’s greater benefit when amyloid-lowering therapies are initiated at an earlier disease stage, the investigators noted.
Additional support for clinical relevance was a 38.6% risk reduction of disease progression, as measured on the CDR–Global Score.
In addition, participants who received the active drug benefited in terms of activities of daily living, as demonstrated by 40% less decline (P < .0001) on the Alzheimer’s Disease Cooperative Study–Instrumental Activities of Daily Living Inventory.
Donanemab significantly reduced brain amyloid plaque: 80% (low/medium tau population) and 76% (combined population) of participants achieved amyloid clearance at 76 weeks. The intervention was also associated with a greater decrease in whole-brain volume.
The treatment effect continued to widen after patients were switched to placebo, as evidenced on PET scan at 6 or 12 months, said Dr. Mintun.
The effects of the drug were similar among men and women but were especially pronounced among younger participants, with a 48% slowing on iADRS and a 45% slowing on CDR-SB in those younger than 75 years.
Safety issues
However, the drug is not without some safety concerns. Amyloid-related imaging abnormalities (ARIAs) occurred in 36.8% of the treatment group versus 14.9% of the placebo group, and in 40.6% of patients who were homozygous for apo E4 and received the drug. Microhemorrhage occurred in 26.8% in the donanemab group versus 12.5% in the placebo group.
Most ARIA cases were mild to moderate and resolved or stabilized with appropriate management. However, three deaths were determined to be drug related among participants who developed serious ARIAs or brain bleeding and swelling.
An important study limitation was that it enrolled primarily White patients (91.5%), which may limit generalizability to other populations, and the age limit was 85 years, which some believe is an inadequate representation of older adults. In addition, the 18-month treatment window limits the long-term understanding of donanemab’s benefits and side effects.
Eli Lilly has filed a submission to the Food and Drug Administration. If approved, donanemab will be the third antiamyloid monoclonal antibody to receive this status, following aducanumab (Aduhelm) and lecanemab (Leqembi).
Strongest data yet
Commenting on the study findings, Percy Griffin, PhD, director of scientific engagement, Alzheimer’s Association, said these new results are “very, very exciting” and represent “the strongest data to-date” for antiamyloid monoclonal antibodies in Alzheimer’s disease.
“A good percentage of individuals on the drug actually saw a complete clearance of amyloid, and some had to be taken off the drug, because if you’re on an antiamyloid drug and there’s no amyloid, what are you going for?”
He noted that the study had some unique aspects, including using tau-PET “to see whether or not the drug is more effective in subpopulations.”
Access to this and other antiamyloid therapies should be a priority, said Dr. Griffin. “We have to make sure people who have the potential to benefit from these treatments do.”
The Alzheimer’s Association is calling for Medicare beneficiaries who are living with the disease to receive the same coverage afforded to those with other diseases.
“The Centers for Medicare & Medicaid Services policy to block Medicare access to FDA-approved Alzheimer’s disease treatments is in stark contrast to scientific evidence, is unprecedented and must be reversed immediately,” Joanne Pike, DrPH, president and CEO of the Alzheimer’s Association, said in a press release.
Also important is tracking the longitudinal performance of these drugs outside of clinical trials, said Dr. Griffin. “Not everyone is going to be in that Goldilocks zone of being able to see a doctor whenever they want and have access to these PET and MRI tools and other things used in clinical trials.”
He noted that the Alzheimer’s Association is leading a network for diagnostics and therapeutics (ALZ-NET) that will track the performance of novel FDA-approved Alzheimer’s disease therapies “in the real world.”
While these are exciting findings for antiamyloid therapy, “we can’t take our foot off the gas, we need more therapies that target different aspects of the disease biology,” said Dr. Griffin.
A version of this article appeared on Medscape.com.
results of a phase 3 study showed.
“This trial demonstrates that an antiamyloid drug significantly slows the disease and provides meaningful benefit to patients, and we’re hoping that with approval, we will be able to make that drug available,” said Mark Mintun, MD, VP, pain and neurodegeneration research, Eli Lilly.
At a press briefing highlighting the new results, Maria Carrillo, PhD, chief science officer, Alzheimer’s Association, noted the “palpable excitement” surrounding this new study, which follows on the heels of other promising antiamyloid research. “This is the decade of Alzheimer’s disease, and it will get better from here,” she said.
The findings were presented at the Alzheimer’s Association International Conference and were published online in JAMA.
Primary, secondary endpoints met
The TRAILBLAZER-ALZ 2 study included 1,736 patients with mild cognitive impairment (MCI) or mild dementia for whom PET showed evidence of amyloid and tau pathology. The mean age of the participants was 73 years, and most of the participants were White.
Participants were randomly assigned to receive either placebo or donanemab, an investigational IgG1 monoclonal antibody directed against an insoluble, modified, N-terminal, truncated form of beta-amyloid. Donanemab was administered at a dose of 700 mg for the first three doses and 1,400 mg thereafter. The drug was administered intravenously every 4 weeks for up to 72 weeks.
Researchers stratified patients on the basis of the amount of tau, a biomarker for Alzheimer’s disease progression, into a low/medium tau group and a combined tau group (low/medium and high tau).
The primary endpoint was change from baseline to 76 weeks on the integrated Alzheimer’s Disease Rating Scale (iADRS), which measures cognition and activities of daily living.
In those with low/medium tau levels, the least squares mean (LSM) change in iADRS score was −6.02 (95% confidence interval, −7.01 to −5.03) in the donanemab group and −9.27 (95% CI, −10.23 to −8.31) in the placebo group (difference, 3.25; 95% CI, 1.88 – 4.62; P < .001), representing a 35.1% slowing of disease progression.
In the combined (tau) population, LSM change in iADRS was −10.19 (95% CI, −11.22 to −9.16) in the donanemab group and −13.11 (95% CI, −14.10 to −12.13) in the placebo group (difference, 2.92; 95% CI, 1.51 – 4.33; P < .001), representing a 22.3% slowing of disease progression.
The study also met all secondary endpoints regarding measurements of cognitive and functional decline, including the Clinical Dementia Rating–Sum of Boxes (CDR-SB), which showed 36% slowing of decline (P < .0001) over 18 months.
The authors noted that the changes on these scales were clinically meaningful (considered to be > 20% slowing of clinical progression) for both the low/medium tau and combined populations.
Greater benefit with lower tau
However, patients with low/medium tau generally demonstrated effect size estimates that were larger than those of the overall population, which suggests there’s greater benefit when amyloid-lowering therapies are initiated at an earlier disease stage, the investigators noted.
Additional support for clinical relevance was a 38.6% risk reduction of disease progression, as measured on the CDR–Global Score.
In addition, participants who received the active drug benefited in terms of activities of daily living, as demonstrated by 40% less decline (P < .0001) on the Alzheimer’s Disease Cooperative Study–Instrumental Activities of Daily Living Inventory.
Donanemab significantly reduced brain amyloid plaque: 80% (low/medium tau population) and 76% (combined population) of participants achieved amyloid clearance at 76 weeks. The intervention was also associated with a greater decrease in whole-brain volume.
The treatment effect continued to widen after patients were switched to placebo, as evidenced on PET scan at 6 or 12 months, said Dr. Mintun.
The effects of the drug were similar among men and women but were especially pronounced among younger participants, with a 48% slowing on iADRS and a 45% slowing on CDR-SB in those younger than 75 years.
Safety issues
However, the drug is not without some safety concerns. Amyloid-related imaging abnormalities (ARIAs) occurred in 36.8% of the treatment group versus 14.9% of the placebo group, and in 40.6% of patients who were homozygous for apo E4 and received the drug. Microhemorrhage occurred in 26.8% in the donanemab group versus 12.5% in the placebo group.
Most ARIA cases were mild to moderate and resolved or stabilized with appropriate management. However, three deaths were determined to be drug related among participants who developed serious ARIAs or brain bleeding and swelling.
An important study limitation was that it enrolled primarily White patients (91.5%), which may limit generalizability to other populations, and the age limit was 85 years, which some believe is an inadequate representation of older adults. In addition, the 18-month treatment window limits the long-term understanding of donanemab’s benefits and side effects.
Eli Lilly has filed a submission to the Food and Drug Administration. If approved, donanemab will be the third antiamyloid monoclonal antibody to receive this status, following aducanumab (Aduhelm) and lecanemab (Leqembi).
Strongest data yet
Commenting on the study findings, Percy Griffin, PhD, director of scientific engagement, Alzheimer’s Association, said these new results are “very, very exciting” and represent “the strongest data to-date” for antiamyloid monoclonal antibodies in Alzheimer’s disease.
“A good percentage of individuals on the drug actually saw a complete clearance of amyloid, and some had to be taken off the drug, because if you’re on an antiamyloid drug and there’s no amyloid, what are you going for?”
He noted that the study had some unique aspects, including using tau-PET “to see whether or not the drug is more effective in subpopulations.”
Access to this and other antiamyloid therapies should be a priority, said Dr. Griffin. “We have to make sure people who have the potential to benefit from these treatments do.”
The Alzheimer’s Association is calling for Medicare beneficiaries who are living with the disease to receive the same coverage afforded to those with other diseases.
“The Centers for Medicare & Medicaid Services policy to block Medicare access to FDA-approved Alzheimer’s disease treatments is in stark contrast to scientific evidence, is unprecedented and must be reversed immediately,” Joanne Pike, DrPH, president and CEO of the Alzheimer’s Association, said in a press release.
Also important is tracking the longitudinal performance of these drugs outside of clinical trials, said Dr. Griffin. “Not everyone is going to be in that Goldilocks zone of being able to see a doctor whenever they want and have access to these PET and MRI tools and other things used in clinical trials.”
He noted that the Alzheimer’s Association is leading a network for diagnostics and therapeutics (ALZ-NET) that will track the performance of novel FDA-approved Alzheimer’s disease therapies “in the real world.”
While these are exciting findings for antiamyloid therapy, “we can’t take our foot off the gas, we need more therapies that target different aspects of the disease biology,” said Dr. Griffin.
A version of this article appeared on Medscape.com.
FROM AAIC 2023
Remote teams offer chance to improve difficult-to-treat PsA
DUBLIN – according to presenters at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
In the same session at the meeting, GRAPPA also announced a new initiative to define difficult-to-treat PsA.
Deepak Jadon, MBBCh, PhD, a rheumatologist with Cambridge (England) University Hospitals NHS Foundation Trust, described his experience of running a clinic for patients with difficult-to-treat PsA in eastern England, covering a catchment area of approximately 6 million people between six and seven hospitals. He discussed how the MDT in his region operates to discuss the management of such patients, whose treatment options may also have indications for comorbidities such as inflammatory bowel disease or uveitis, or have complicating factors such as metabolic syndrome.
“You have to have an interested and engaged colleague to form that collaboration,” Dr. Jadon said. “If you are working in isolation, without your colleagues in the same building, that becomes harder. We have been running remote multispecialty meetings without the patient being present, and I have had the good fortune of having medical students brought into our practice. We discussed approximately 220 patients, initially in our psoriasis-spondyloarthritis MDT and subsequently in our inflammatory bowel disease–spondyloarthritis MDT.”
There are also MDTs with hepatologist colleagues carried out on an ad hoc basis to discuss patients with nonalcoholic fatty liver disease, as well as patients with hepatitis or a transplanted liver, who have psoriatic disease.
This difficult-to-treat cohort is discussed in MDT meetings conducted on Zoom. At MDT meetings, carried out with frequencies ranging from monthly to bimonthly, Dr. Jadon said there would be two dermatologists, two rheumatologists, one to four dermatology and rheumatology trainees and fellows, one to four specialist nurses, one to three research nurses, and one biologics pharmacist. They record the meetings and discuss anywhere from 4 to 18 patients, reviewing items in their electronic medical record, calling or writing patients and/or their primary care clinician as needed. They take about an hour to meet, with a half hour of prep time and another 1.5 hours to undertake necessary actions.
“Generally, the question is, how can we change treatment to best cover the domains of disease?” Dr. Jadon said. “Progressively, more patients are being put onto biologics as a result of these conversations, and I do feel that it has helped our patients and us to consolidate their management plan. Naturally, as all clinicians do, we doubt ourselves and wonder if we are missing something. Is there an aspect of the disease [being missed]? Is there a treatment that I haven’t been using? [The meetings have] been reassuring in that regard. I also learn from my colleagues who have earlier access to treatments, especially in dermatology.”
In a small number of patients, some combinations of advanced therapies, such as combining a Janus kinase inhibitor with a biologic, have been used as a result of these collaborations, “and to discuss this in an MDT has been reassuring, including from a medico-legal perspective,” Dr. Jadon said. “One of the main things we found to be useful is having a brief referral pro forma. Usually, by the time patients reach this forum, they have used a lot of treatments, and it can be difficult to remember that on the spot. It is also important to focus on what the actual question is. Naturally, in these discussions, where you talk about the complexities and various facets of disease, you can get a bit lost and sometimes you actually don’t address the original question.”
He also said it has been very beneficial to use screen sharing in the remote MDTs so that different disciplines can review images together, such as with radiology colleagues. “There are varying skill sets among our colleagues, especially in radiology, and it has been quite nice to review their peripheral imaging, their axial imaging, laboratory markers, and skin lesions together.”
New GRAPPA project to provide clarity
A new GRAPPA project has been devised to help physicians identify and define difficult-to-treat and difficult-to-manage PsA in order to help physicians to categorize and treat these patients.
“We have a growing treatment armamentarium ... but we still do not reach all the patients that we would like to,” said Fabian Proft, MD, of Charité University Medicine, Berlin. “We set our targets, but we see in the real world that we are only reaching them in 40% or 50% of our patients. So, we need to do better, and in order to do better, we need to understand better.”
“We should not only make a definition of difficult-to-treat PsA, which is nonresponse to treatment with objective signs of inflammation, but also we need to address and acknowledge difficult-to-manage [patients],” Dr. Proft said. “We should not stop as soon as we come up with a definition. This will be a working definition and will need to be validated.”
The speakers reported no relevant financial relationships.
A version of this article appeared on Medscape.com.
DUBLIN – according to presenters at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
In the same session at the meeting, GRAPPA also announced a new initiative to define difficult-to-treat PsA.
Deepak Jadon, MBBCh, PhD, a rheumatologist with Cambridge (England) University Hospitals NHS Foundation Trust, described his experience of running a clinic for patients with difficult-to-treat PsA in eastern England, covering a catchment area of approximately 6 million people between six and seven hospitals. He discussed how the MDT in his region operates to discuss the management of such patients, whose treatment options may also have indications for comorbidities such as inflammatory bowel disease or uveitis, or have complicating factors such as metabolic syndrome.
“You have to have an interested and engaged colleague to form that collaboration,” Dr. Jadon said. “If you are working in isolation, without your colleagues in the same building, that becomes harder. We have been running remote multispecialty meetings without the patient being present, and I have had the good fortune of having medical students brought into our practice. We discussed approximately 220 patients, initially in our psoriasis-spondyloarthritis MDT and subsequently in our inflammatory bowel disease–spondyloarthritis MDT.”
There are also MDTs with hepatologist colleagues carried out on an ad hoc basis to discuss patients with nonalcoholic fatty liver disease, as well as patients with hepatitis or a transplanted liver, who have psoriatic disease.
This difficult-to-treat cohort is discussed in MDT meetings conducted on Zoom. At MDT meetings, carried out with frequencies ranging from monthly to bimonthly, Dr. Jadon said there would be two dermatologists, two rheumatologists, one to four dermatology and rheumatology trainees and fellows, one to four specialist nurses, one to three research nurses, and one biologics pharmacist. They record the meetings and discuss anywhere from 4 to 18 patients, reviewing items in their electronic medical record, calling or writing patients and/or their primary care clinician as needed. They take about an hour to meet, with a half hour of prep time and another 1.5 hours to undertake necessary actions.
“Generally, the question is, how can we change treatment to best cover the domains of disease?” Dr. Jadon said. “Progressively, more patients are being put onto biologics as a result of these conversations, and I do feel that it has helped our patients and us to consolidate their management plan. Naturally, as all clinicians do, we doubt ourselves and wonder if we are missing something. Is there an aspect of the disease [being missed]? Is there a treatment that I haven’t been using? [The meetings have] been reassuring in that regard. I also learn from my colleagues who have earlier access to treatments, especially in dermatology.”
In a small number of patients, some combinations of advanced therapies, such as combining a Janus kinase inhibitor with a biologic, have been used as a result of these collaborations, “and to discuss this in an MDT has been reassuring, including from a medico-legal perspective,” Dr. Jadon said. “One of the main things we found to be useful is having a brief referral pro forma. Usually, by the time patients reach this forum, they have used a lot of treatments, and it can be difficult to remember that on the spot. It is also important to focus on what the actual question is. Naturally, in these discussions, where you talk about the complexities and various facets of disease, you can get a bit lost and sometimes you actually don’t address the original question.”
He also said it has been very beneficial to use screen sharing in the remote MDTs so that different disciplines can review images together, such as with radiology colleagues. “There are varying skill sets among our colleagues, especially in radiology, and it has been quite nice to review their peripheral imaging, their axial imaging, laboratory markers, and skin lesions together.”
New GRAPPA project to provide clarity
A new GRAPPA project has been devised to help physicians identify and define difficult-to-treat and difficult-to-manage PsA in order to help physicians to categorize and treat these patients.
“We have a growing treatment armamentarium ... but we still do not reach all the patients that we would like to,” said Fabian Proft, MD, of Charité University Medicine, Berlin. “We set our targets, but we see in the real world that we are only reaching them in 40% or 50% of our patients. So, we need to do better, and in order to do better, we need to understand better.”
“We should not only make a definition of difficult-to-treat PsA, which is nonresponse to treatment with objective signs of inflammation, but also we need to address and acknowledge difficult-to-manage [patients],” Dr. Proft said. “We should not stop as soon as we come up with a definition. This will be a working definition and will need to be validated.”
The speakers reported no relevant financial relationships.
A version of this article appeared on Medscape.com.
DUBLIN – according to presenters at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
In the same session at the meeting, GRAPPA also announced a new initiative to define difficult-to-treat PsA.
Deepak Jadon, MBBCh, PhD, a rheumatologist with Cambridge (England) University Hospitals NHS Foundation Trust, described his experience of running a clinic for patients with difficult-to-treat PsA in eastern England, covering a catchment area of approximately 6 million people between six and seven hospitals. He discussed how the MDT in his region operates to discuss the management of such patients, whose treatment options may also have indications for comorbidities such as inflammatory bowel disease or uveitis, or have complicating factors such as metabolic syndrome.
“You have to have an interested and engaged colleague to form that collaboration,” Dr. Jadon said. “If you are working in isolation, without your colleagues in the same building, that becomes harder. We have been running remote multispecialty meetings without the patient being present, and I have had the good fortune of having medical students brought into our practice. We discussed approximately 220 patients, initially in our psoriasis-spondyloarthritis MDT and subsequently in our inflammatory bowel disease–spondyloarthritis MDT.”
There are also MDTs with hepatologist colleagues carried out on an ad hoc basis to discuss patients with nonalcoholic fatty liver disease, as well as patients with hepatitis or a transplanted liver, who have psoriatic disease.
This difficult-to-treat cohort is discussed in MDT meetings conducted on Zoom. At MDT meetings, carried out with frequencies ranging from monthly to bimonthly, Dr. Jadon said there would be two dermatologists, two rheumatologists, one to four dermatology and rheumatology trainees and fellows, one to four specialist nurses, one to three research nurses, and one biologics pharmacist. They record the meetings and discuss anywhere from 4 to 18 patients, reviewing items in their electronic medical record, calling or writing patients and/or their primary care clinician as needed. They take about an hour to meet, with a half hour of prep time and another 1.5 hours to undertake necessary actions.
“Generally, the question is, how can we change treatment to best cover the domains of disease?” Dr. Jadon said. “Progressively, more patients are being put onto biologics as a result of these conversations, and I do feel that it has helped our patients and us to consolidate their management plan. Naturally, as all clinicians do, we doubt ourselves and wonder if we are missing something. Is there an aspect of the disease [being missed]? Is there a treatment that I haven’t been using? [The meetings have] been reassuring in that regard. I also learn from my colleagues who have earlier access to treatments, especially in dermatology.”
In a small number of patients, some combinations of advanced therapies, such as combining a Janus kinase inhibitor with a biologic, have been used as a result of these collaborations, “and to discuss this in an MDT has been reassuring, including from a medico-legal perspective,” Dr. Jadon said. “One of the main things we found to be useful is having a brief referral pro forma. Usually, by the time patients reach this forum, they have used a lot of treatments, and it can be difficult to remember that on the spot. It is also important to focus on what the actual question is. Naturally, in these discussions, where you talk about the complexities and various facets of disease, you can get a bit lost and sometimes you actually don’t address the original question.”
He also said it has been very beneficial to use screen sharing in the remote MDTs so that different disciplines can review images together, such as with radiology colleagues. “There are varying skill sets among our colleagues, especially in radiology, and it has been quite nice to review their peripheral imaging, their axial imaging, laboratory markers, and skin lesions together.”
New GRAPPA project to provide clarity
A new GRAPPA project has been devised to help physicians identify and define difficult-to-treat and difficult-to-manage PsA in order to help physicians to categorize and treat these patients.
“We have a growing treatment armamentarium ... but we still do not reach all the patients that we would like to,” said Fabian Proft, MD, of Charité University Medicine, Berlin. “We set our targets, but we see in the real world that we are only reaching them in 40% or 50% of our patients. So, we need to do better, and in order to do better, we need to understand better.”
“We should not only make a definition of difficult-to-treat PsA, which is nonresponse to treatment with objective signs of inflammation, but also we need to address and acknowledge difficult-to-manage [patients],” Dr. Proft said. “We should not stop as soon as we come up with a definition. This will be a working definition and will need to be validated.”
The speakers reported no relevant financial relationships.
A version of this article appeared on Medscape.com.
AT GRAPPA 2023
Keep depression, anxiety screening top of mind in patients with psoriatic disease
DUBLIN – , warranting routine screening and having community contacts for mental health professional referrals, Elizabeth Wallace, MD, said at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
Dr. Wallace, of Cherry Hills Dermatology, Englewood, Colo., discussed the complex interactions between mental illness and psoriatic disease and the potential pitfalls of this comorbidity for these patients.
The topic of mental health is “consistently at the top of our patients’ minds, and certainly our minds too,” said session comoderator and GRAPPA president-elect Joseph F. Merola, MD, MMSc.
“In the U.S., around 17% of people with psoriasis have depression vs. 9% in those without psoriasis,” Dr. Wallace explained. “Psoriasis patients are twice as likely to have depression, compared to those without psoriasis, and psoriasis patients are 33% more likely to attempt suicide and 20% more likely to complete suicide, compared to those without psoriasis.” More severe psoriasis and younger age of onset are also associated with a greater likelihood of suicidality, she added.
Mediators of depression
“The inflammatory mechanisms driving PsD can drive depression and anxiety, and vice-versa,” she said. “There are often also genetic links, for example genetic variations in serotonin receptors, and psychological issues in psoriatic disease are predictably worsened by feelings of stigmatization, embarrassment, and social isolation.”
There are also efforts underway in clinics to “normalize” screening for anxiety and depression among this patient cohort, Dr. Wallace said. “We know that our psoriasis patients face social stigma from the visibility of their disease, and that stress can lead to flares of their condition,” she told the attendees. “We also know that patients who experience stigma also have an increased risk of depressive symptoms. We all know now that psoriasis has well-established pathways with upregulated proinflammatory cytokines.
“Increased cytokines stimulate indoleamine 2,3-dioxygenase, which converts tryptophan to kynurenine. Kynurenine is metabolized to quinolinic acid, which is neurotoxic.” She explained that because serotonin derives from tryptophan, decreases in tryptophan lead to reduced serotonin, and therefore increased risk of depression.
Interleukin-6 is known to be upregulated in depression and downregulated with the use of antidepressant medications, Dr. Wallace said. Mouse models in research have shown that deletion of the IL-6 gene produces antidepressant effects, and studies in humans have shown that IL-6, more than any other serum cytokine, is found at higher levels in humans with depression and psoriatic disease.
IL-17 is also implicated in psoriatic disease and mental health problems, Dr. Wallace said. “With stress, you get upregulation of the Tc17 cells, which produce IL-17,” she explained. “IL-17, along with other inflammatory markers, can actually make the blood-brain barrier more permeable, and when you get more permeability to the blood-brain barrier, you get these cytokines that can cross from the periphery and into the brain.
“With this crossing into the brain, you get further activation of more Th17 [cells] and that, on neurons, leads to increased potassium production, which is directly neurotoxic, so you get neuron destruction.”
Talking about depression
“So, what can we share with our patients?” Dr. Wallace asked. “We can discuss with them that psoriatic patients in general are more likely to be depressed or to have higher rates of suicide. The literature consistently shows that patients whose psoriasis is successfully treated experience reduced depression, and we can provide an understandable review of systemic medications, with warnings on depression and/or suicidality.”
Dr. Wallace advised to screen for depression with the Patient Health Questionnaire-2 (PHQ-2), a validated, two-item tool that asks, “Over the past 2 weeks, how often have you been bothered by having little interest or pleasure in doing things?” and “Over the past 2 weeks, how often have you been bothered by feeling down, depressed, or hopeless?”
She presented a case study illustrative of the type of presentation she sees in her clinic. It involved a 32-year-old man with plaque psoriasis and a high degree of body surface affected. “It’s now July in Colorado, it’s getting warm, people want to wear their shorts and T-shirts, but he said he could no longer hide his psoriasis,” said Dr. Wallace. “Further, it’s in areas that he cannot hide, such as his scalp, his beard, and he also has nail disease. Often, these patients don’t want to shake hands with their bosses or their colleagues and that’s very embarrassing for them.”
Dr. Wallace explained that this patient had seen advertisements for biologic drugs and requested to commence a treatment course. “During the exam, and now that you are developing some rapport with him, you discover that he is feeling down, is embarrassed at work, and has started to avoid social situations.” This is illustrative of a patient who should be screened for mental health conditions, specifically using PHQ-2, she said.
“You can be the person at the front line to screen these patients for mental health conditions, and, specifically for depression, with PHQ-2,” she said. PHQ-2 scores range from 0 to 6, and a score of 3 or higher is considered a positive screen.
“This is where your relationship with another health provider who is most qualified to care for these patients and validate them for their mental health condition can be absolutely critical,” Dr. Wallace said.
Successful PsD treatment lessens the risk for mental health comorbidities, and this is also seen in psoriatic arthritis, Dr. Wallace pointed out. Patient education is critical regarding their increased risk for depression and potential suicidal ideation, she added.
“It’s our job as clinicians to provide patients with an understandable, easy-to-digest review of systemic medications and warnings on depression and suicidality so that they can be aware of these factors.”
Perspective from Dr. Merola
In an interview, Dr. Merola, a double board-certified dermatologist and rheumatologist at Brigham and Women’s Hospital, Boston, discussed the interactions between mental and physical illness.
“One of the things we are learning is that it’s very much a multifactorial issue, in that skin and joints contribute, in some obvious ways, to anxiety and depression, like the fact that somebody doesn’t feel good about their appearance, or they can’t complete daily activities,” he said. “Those are the more obvious ones. But there is data and evidence that there is a biology behind that as well – inflammatory cytokines that drive skin disease probably also have a direct impact on the CNS and probably also drive anxiety and depression.
“We know that disordered sleep contributes to anxiety – think about how we feel if we get a horrible night’s sleep ... it’s hard to pick apart: ‘Am I depressed, am I anxious because I am having too much coffee? Because I am fatigued?’ So, we get into these circles, but the point is, we have to break these cycles, and we have to do it in multiple places. Yes, we have to fix the skin and the joints, but we also have to have interventions and think about how to screen for anxiety and depression. We also have to think about identifying disordered sleep, and how we intervene there as well.”
These challenges require a collaborative approach among physicians. “We can help patients to build their team that gets them help for their skin, for their joints, for their anxiety or depression, their disordered sleep, for their nutritional disorders, their obesity, and so on. So, we are trying to pick apart and unpack those complexities,” he said.
In regard to the potential impacts of this holistic strategy on physician workloads, Dr. Merola acknowledged it is important to consider physician wellness. “There’s no question that we want to be doing the best we can for our colleagues, but we don’t want to overload our colleagues by saying, ‘By the way, not only should we be treating their skin and joints,’ which of course we should be doing, but ‘could you also manage their diabetes, their obesity, their disordered sleep, their anxiety, their depression, difficulties with insurance, getting access to treatments, etc.’
“This is where effective collaboration between physicians becomes important,” he stressed. “We can’t manage every single piece, but we can make sure our patients are informed, are aware, and assist them to get the help that they need.”
In the United States, there “is a real issue” with access to mental health care and greater awareness needs to be created around this issue, he added.
Dr. Wallace and Dr. Merola report no relevant financial relationships.
A version of this article first appeared on Medscape.com.
DUBLIN – , warranting routine screening and having community contacts for mental health professional referrals, Elizabeth Wallace, MD, said at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
Dr. Wallace, of Cherry Hills Dermatology, Englewood, Colo., discussed the complex interactions between mental illness and psoriatic disease and the potential pitfalls of this comorbidity for these patients.
The topic of mental health is “consistently at the top of our patients’ minds, and certainly our minds too,” said session comoderator and GRAPPA president-elect Joseph F. Merola, MD, MMSc.
“In the U.S., around 17% of people with psoriasis have depression vs. 9% in those without psoriasis,” Dr. Wallace explained. “Psoriasis patients are twice as likely to have depression, compared to those without psoriasis, and psoriasis patients are 33% more likely to attempt suicide and 20% more likely to complete suicide, compared to those without psoriasis.” More severe psoriasis and younger age of onset are also associated with a greater likelihood of suicidality, she added.
Mediators of depression
“The inflammatory mechanisms driving PsD can drive depression and anxiety, and vice-versa,” she said. “There are often also genetic links, for example genetic variations in serotonin receptors, and psychological issues in psoriatic disease are predictably worsened by feelings of stigmatization, embarrassment, and social isolation.”
There are also efforts underway in clinics to “normalize” screening for anxiety and depression among this patient cohort, Dr. Wallace said. “We know that our psoriasis patients face social stigma from the visibility of their disease, and that stress can lead to flares of their condition,” she told the attendees. “We also know that patients who experience stigma also have an increased risk of depressive symptoms. We all know now that psoriasis has well-established pathways with upregulated proinflammatory cytokines.
“Increased cytokines stimulate indoleamine 2,3-dioxygenase, which converts tryptophan to kynurenine. Kynurenine is metabolized to quinolinic acid, which is neurotoxic.” She explained that because serotonin derives from tryptophan, decreases in tryptophan lead to reduced serotonin, and therefore increased risk of depression.
Interleukin-6 is known to be upregulated in depression and downregulated with the use of antidepressant medications, Dr. Wallace said. Mouse models in research have shown that deletion of the IL-6 gene produces antidepressant effects, and studies in humans have shown that IL-6, more than any other serum cytokine, is found at higher levels in humans with depression and psoriatic disease.
IL-17 is also implicated in psoriatic disease and mental health problems, Dr. Wallace said. “With stress, you get upregulation of the Tc17 cells, which produce IL-17,” she explained. “IL-17, along with other inflammatory markers, can actually make the blood-brain barrier more permeable, and when you get more permeability to the blood-brain barrier, you get these cytokines that can cross from the periphery and into the brain.
“With this crossing into the brain, you get further activation of more Th17 [cells] and that, on neurons, leads to increased potassium production, which is directly neurotoxic, so you get neuron destruction.”
Talking about depression
“So, what can we share with our patients?” Dr. Wallace asked. “We can discuss with them that psoriatic patients in general are more likely to be depressed or to have higher rates of suicide. The literature consistently shows that patients whose psoriasis is successfully treated experience reduced depression, and we can provide an understandable review of systemic medications, with warnings on depression and/or suicidality.”
Dr. Wallace advised to screen for depression with the Patient Health Questionnaire-2 (PHQ-2), a validated, two-item tool that asks, “Over the past 2 weeks, how often have you been bothered by having little interest or pleasure in doing things?” and “Over the past 2 weeks, how often have you been bothered by feeling down, depressed, or hopeless?”
She presented a case study illustrative of the type of presentation she sees in her clinic. It involved a 32-year-old man with plaque psoriasis and a high degree of body surface affected. “It’s now July in Colorado, it’s getting warm, people want to wear their shorts and T-shirts, but he said he could no longer hide his psoriasis,” said Dr. Wallace. “Further, it’s in areas that he cannot hide, such as his scalp, his beard, and he also has nail disease. Often, these patients don’t want to shake hands with their bosses or their colleagues and that’s very embarrassing for them.”
Dr. Wallace explained that this patient had seen advertisements for biologic drugs and requested to commence a treatment course. “During the exam, and now that you are developing some rapport with him, you discover that he is feeling down, is embarrassed at work, and has started to avoid social situations.” This is illustrative of a patient who should be screened for mental health conditions, specifically using PHQ-2, she said.
“You can be the person at the front line to screen these patients for mental health conditions, and, specifically for depression, with PHQ-2,” she said. PHQ-2 scores range from 0 to 6, and a score of 3 or higher is considered a positive screen.
“This is where your relationship with another health provider who is most qualified to care for these patients and validate them for their mental health condition can be absolutely critical,” Dr. Wallace said.
Successful PsD treatment lessens the risk for mental health comorbidities, and this is also seen in psoriatic arthritis, Dr. Wallace pointed out. Patient education is critical regarding their increased risk for depression and potential suicidal ideation, she added.
“It’s our job as clinicians to provide patients with an understandable, easy-to-digest review of systemic medications and warnings on depression and suicidality so that they can be aware of these factors.”
Perspective from Dr. Merola
In an interview, Dr. Merola, a double board-certified dermatologist and rheumatologist at Brigham and Women’s Hospital, Boston, discussed the interactions between mental and physical illness.
“One of the things we are learning is that it’s very much a multifactorial issue, in that skin and joints contribute, in some obvious ways, to anxiety and depression, like the fact that somebody doesn’t feel good about their appearance, or they can’t complete daily activities,” he said. “Those are the more obvious ones. But there is data and evidence that there is a biology behind that as well – inflammatory cytokines that drive skin disease probably also have a direct impact on the CNS and probably also drive anxiety and depression.
“We know that disordered sleep contributes to anxiety – think about how we feel if we get a horrible night’s sleep ... it’s hard to pick apart: ‘Am I depressed, am I anxious because I am having too much coffee? Because I am fatigued?’ So, we get into these circles, but the point is, we have to break these cycles, and we have to do it in multiple places. Yes, we have to fix the skin and the joints, but we also have to have interventions and think about how to screen for anxiety and depression. We also have to think about identifying disordered sleep, and how we intervene there as well.”
These challenges require a collaborative approach among physicians. “We can help patients to build their team that gets them help for their skin, for their joints, for their anxiety or depression, their disordered sleep, for their nutritional disorders, their obesity, and so on. So, we are trying to pick apart and unpack those complexities,” he said.
In regard to the potential impacts of this holistic strategy on physician workloads, Dr. Merola acknowledged it is important to consider physician wellness. “There’s no question that we want to be doing the best we can for our colleagues, but we don’t want to overload our colleagues by saying, ‘By the way, not only should we be treating their skin and joints,’ which of course we should be doing, but ‘could you also manage their diabetes, their obesity, their disordered sleep, their anxiety, their depression, difficulties with insurance, getting access to treatments, etc.’
“This is where effective collaboration between physicians becomes important,” he stressed. “We can’t manage every single piece, but we can make sure our patients are informed, are aware, and assist them to get the help that they need.”
In the United States, there “is a real issue” with access to mental health care and greater awareness needs to be created around this issue, he added.
Dr. Wallace and Dr. Merola report no relevant financial relationships.
A version of this article first appeared on Medscape.com.
DUBLIN – , warranting routine screening and having community contacts for mental health professional referrals, Elizabeth Wallace, MD, said at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
Dr. Wallace, of Cherry Hills Dermatology, Englewood, Colo., discussed the complex interactions between mental illness and psoriatic disease and the potential pitfalls of this comorbidity for these patients.
The topic of mental health is “consistently at the top of our patients’ minds, and certainly our minds too,” said session comoderator and GRAPPA president-elect Joseph F. Merola, MD, MMSc.
“In the U.S., around 17% of people with psoriasis have depression vs. 9% in those without psoriasis,” Dr. Wallace explained. “Psoriasis patients are twice as likely to have depression, compared to those without psoriasis, and psoriasis patients are 33% more likely to attempt suicide and 20% more likely to complete suicide, compared to those without psoriasis.” More severe psoriasis and younger age of onset are also associated with a greater likelihood of suicidality, she added.
Mediators of depression
“The inflammatory mechanisms driving PsD can drive depression and anxiety, and vice-versa,” she said. “There are often also genetic links, for example genetic variations in serotonin receptors, and psychological issues in psoriatic disease are predictably worsened by feelings of stigmatization, embarrassment, and social isolation.”
There are also efforts underway in clinics to “normalize” screening for anxiety and depression among this patient cohort, Dr. Wallace said. “We know that our psoriasis patients face social stigma from the visibility of their disease, and that stress can lead to flares of their condition,” she told the attendees. “We also know that patients who experience stigma also have an increased risk of depressive symptoms. We all know now that psoriasis has well-established pathways with upregulated proinflammatory cytokines.
“Increased cytokines stimulate indoleamine 2,3-dioxygenase, which converts tryptophan to kynurenine. Kynurenine is metabolized to quinolinic acid, which is neurotoxic.” She explained that because serotonin derives from tryptophan, decreases in tryptophan lead to reduced serotonin, and therefore increased risk of depression.
Interleukin-6 is known to be upregulated in depression and downregulated with the use of antidepressant medications, Dr. Wallace said. Mouse models in research have shown that deletion of the IL-6 gene produces antidepressant effects, and studies in humans have shown that IL-6, more than any other serum cytokine, is found at higher levels in humans with depression and psoriatic disease.
IL-17 is also implicated in psoriatic disease and mental health problems, Dr. Wallace said. “With stress, you get upregulation of the Tc17 cells, which produce IL-17,” she explained. “IL-17, along with other inflammatory markers, can actually make the blood-brain barrier more permeable, and when you get more permeability to the blood-brain barrier, you get these cytokines that can cross from the periphery and into the brain.
“With this crossing into the brain, you get further activation of more Th17 [cells] and that, on neurons, leads to increased potassium production, which is directly neurotoxic, so you get neuron destruction.”
Talking about depression
“So, what can we share with our patients?” Dr. Wallace asked. “We can discuss with them that psoriatic patients in general are more likely to be depressed or to have higher rates of suicide. The literature consistently shows that patients whose psoriasis is successfully treated experience reduced depression, and we can provide an understandable review of systemic medications, with warnings on depression and/or suicidality.”
Dr. Wallace advised to screen for depression with the Patient Health Questionnaire-2 (PHQ-2), a validated, two-item tool that asks, “Over the past 2 weeks, how often have you been bothered by having little interest or pleasure in doing things?” and “Over the past 2 weeks, how often have you been bothered by feeling down, depressed, or hopeless?”
She presented a case study illustrative of the type of presentation she sees in her clinic. It involved a 32-year-old man with plaque psoriasis and a high degree of body surface affected. “It’s now July in Colorado, it’s getting warm, people want to wear their shorts and T-shirts, but he said he could no longer hide his psoriasis,” said Dr. Wallace. “Further, it’s in areas that he cannot hide, such as his scalp, his beard, and he also has nail disease. Often, these patients don’t want to shake hands with their bosses or their colleagues and that’s very embarrassing for them.”
Dr. Wallace explained that this patient had seen advertisements for biologic drugs and requested to commence a treatment course. “During the exam, and now that you are developing some rapport with him, you discover that he is feeling down, is embarrassed at work, and has started to avoid social situations.” This is illustrative of a patient who should be screened for mental health conditions, specifically using PHQ-2, she said.
“You can be the person at the front line to screen these patients for mental health conditions, and, specifically for depression, with PHQ-2,” she said. PHQ-2 scores range from 0 to 6, and a score of 3 or higher is considered a positive screen.
“This is where your relationship with another health provider who is most qualified to care for these patients and validate them for their mental health condition can be absolutely critical,” Dr. Wallace said.
Successful PsD treatment lessens the risk for mental health comorbidities, and this is also seen in psoriatic arthritis, Dr. Wallace pointed out. Patient education is critical regarding their increased risk for depression and potential suicidal ideation, she added.
“It’s our job as clinicians to provide patients with an understandable, easy-to-digest review of systemic medications and warnings on depression and suicidality so that they can be aware of these factors.”
Perspective from Dr. Merola
In an interview, Dr. Merola, a double board-certified dermatologist and rheumatologist at Brigham and Women’s Hospital, Boston, discussed the interactions between mental and physical illness.
“One of the things we are learning is that it’s very much a multifactorial issue, in that skin and joints contribute, in some obvious ways, to anxiety and depression, like the fact that somebody doesn’t feel good about their appearance, or they can’t complete daily activities,” he said. “Those are the more obvious ones. But there is data and evidence that there is a biology behind that as well – inflammatory cytokines that drive skin disease probably also have a direct impact on the CNS and probably also drive anxiety and depression.
“We know that disordered sleep contributes to anxiety – think about how we feel if we get a horrible night’s sleep ... it’s hard to pick apart: ‘Am I depressed, am I anxious because I am having too much coffee? Because I am fatigued?’ So, we get into these circles, but the point is, we have to break these cycles, and we have to do it in multiple places. Yes, we have to fix the skin and the joints, but we also have to have interventions and think about how to screen for anxiety and depression. We also have to think about identifying disordered sleep, and how we intervene there as well.”
These challenges require a collaborative approach among physicians. “We can help patients to build their team that gets them help for their skin, for their joints, for their anxiety or depression, their disordered sleep, for their nutritional disorders, their obesity, and so on. So, we are trying to pick apart and unpack those complexities,” he said.
In regard to the potential impacts of this holistic strategy on physician workloads, Dr. Merola acknowledged it is important to consider physician wellness. “There’s no question that we want to be doing the best we can for our colleagues, but we don’t want to overload our colleagues by saying, ‘By the way, not only should we be treating their skin and joints,’ which of course we should be doing, but ‘could you also manage their diabetes, their obesity, their disordered sleep, their anxiety, their depression, difficulties with insurance, getting access to treatments, etc.’
“This is where effective collaboration between physicians becomes important,” he stressed. “We can’t manage every single piece, but we can make sure our patients are informed, are aware, and assist them to get the help that they need.”
In the United States, there “is a real issue” with access to mental health care and greater awareness needs to be created around this issue, he added.
Dr. Wallace and Dr. Merola report no relevant financial relationships.
A version of this article first appeared on Medscape.com.
AT GRAPPA 2023
Experts call for early screening for chronic kidney disease
MADRID – A late diagnosis of chronic kidney disease is cause for concern. Scientific societies are therefore advocating for screening at younger ages to reverse this trend and slow the progression of the disease. Nearly all patients seen in primary care are candidates for screening because of their risk factors for kidney disease.
During the 29th National Conference of General and Family Medicine of the Spanish Society for General and Family Physicians, Teresa Benedito, MD, family doctor and member of the society’s cardiovascular group, and Roberto Alcázar, MD, nephrologist at the Infanta Leonor University Hospital, Madrid, presented a clinical case encountered in primary care. They used this case to frame a strong argument for the importance of early screening for chronic kidney disease, and they discussed how to properly manage such screening.
The presentation followed the guidelines in the SEMG publication regarding the management and referral of patients with type 2 diabetes. Dr. Benedito explained that the first thing to ask oneself during a patient visit is “whether they present risk factors for kidney disease. If so, we can’t let them leave before we do a kidney screening.” She then listed the factors in question: age older than 60 years, African heritage, family history of chronic kidney disease, decreased kidney mass, weight loss at birth, hypertension, diabetes, smoking, obesity, and low socioeconomic status.
For his part, Dr. Alcázar mentioned how these factors are similar to cardiovascular risk factors, because “the kidneys are a ball of vessels with double capillarization for purifying blood. They’re the organs with the most arteries per unit of weight, so anything that can damage the arteries can damage the kidneys.”
Candidates for screening
“Chronic kidney disease develops in 15% of the adult population in Spain. So, it’s worth asking how many patients have been diagnosed and who should we should be screening.” To the factors listed above, Dr. Alcázar added treatment with nephrotoxic drugs (including nonsteroidal anti-inflammatory drugs) for patients with obstructive urinary tract disease, and a history of acute kidney injury for patients with chronic autoimmune disease or neoplasms. “Thus, nearly all patients seen in primary care would need to be screened.”
Another fundamental question raised was whether patients should be screened before age 60 years. “As a nephrologist, I feel that we have been diagnosing chronic kidney disease late, even though we’ve been doing everything by the book,” said Dr. Alcázar. In his opinion, “the answer to whether we should be screening earlier ... is yes, for two reasons: first, because it’s cost-effective, and second, because it’s very inexpensive.”
Dr. Benedito explained in detail the process for diagnosing this disease. She began by defining the disease as changes in kidney structure and function that last longer than 3 months. These changes are identified by use of two criteria: glomerular filtration rate less than 60 mL/min and kidney injury or lesions with or without reduced filtration rate (renal biopsy, albumin/creatinine ratio greater than 30 mg/g, proteinuria, alterations in urinary sediment or in imaging tests). Thus, “if one of these two criteria persists for more than 3 months, the diagnosis is chronic kidney disease. Also, high creatinine levels are not diagnostic for the disease,” she emphasized.
Two related parameters
Glomerular filtration and albuminuria “are highly relevant, because screening for chronic kidney disease is based on these two parameters,” said Dr. Benedito. Glomerular filtration rate varies with age, sex, ethnicity, and body mass. It is useful for identifying the stage of the disease and for monitoring disease progression. Albuminuria, on the other hand, is an indication of the severity of the disease. It’s an early marker for kidney injury and systemic disease and is more sensitive than proteinuria. Therefore, “this factor, together with glomerular filtration rate, allows us to detect, classify, and monitor the progression of chronic kidney disease.”
On this point, Dr. Alcázar emphasized the importance of trends, since variation in glomerular filtration depends on serum creatinine, which can vary by nearly 9%. He explained that glomerular filtration rate is related to the number of nephrons remaining. A glomerular filtration rate of less than 60 mL/min implies that more than half of the nephrons in each kidney have been lost. Albuminuria informs about structural damage (that is, the condition of the remaining nephrons). It’s therefore essential to test for both parameters. “We need to be actively monitoring and then making our decisions based on trends and not on isolated results. We need to be aware of albuminuria when we make our decisions,” said Dr. Alcázar. Some studies have shown the importance of testing for albuminuria whenever creatinine level is assessed. “We need to buy into this. If we don’t do this, we’ll only ever have half the information we need.”
Reducing late diagnosis
According to the IBERICAN study, 14% of patients seen in primary care in Spain have chronic kidney disease. “This statistic should make us stop and think, own our responsibility, and ask ourselves why this screening isn’t taking place [earlier],” said Dr. Benedito. She added, “We need to head off this trend toward late diagnosis. As the disease progresses, it significantly increases cardiovascular risk and leads to higher mortality, going on dialysis, transplants, et cetera.”
Dr. Alcázar noted that 80% of nephrology cases that are referred to him come from primary care. He explained the need to understand that “these patients have a sevenfold greater risk of suffering a serious cardiovascular event within the next year than people without kidney problems.” Most of these patients will experience an event, even if they don’t undergo dialysis (stage 3 and those near stage 4).
Correct staging
Also fundamental is having a detailed understanding of how staging is performed. Dr. Benedito explained that a chart that pairs glomerular filtration rate (six categories) with the level of albuminuria (three categories) should be used during the visit. For example, a case might be classified as G3a-A2. However, the simplified form of the chart may prove more practical. It classifies chronic kidney disease as being associated with mild, moderate, and severe risk, using different colors to aid comprehension.
Dr. Alcázar noted that the latest guidelines from the European Society of Hypertension for 2023 include albuminuria as an important parameter. The guidelines indicate that for a patient with moderate or severe risk, it is not necessary to calculate their score. “It’s considered high cardiovascular risk, and steps would need to be taken for intervention.”
He then listed the tools available for reversing albuminuria. The process begins by reducing salt consumption and involves the use of medications (angiotensin-converting enzyme inhibitors/angiotensin II receptor antagonists, aldosterone receptor antagonists, glucagon-like peptide-1 analogues, and sodium-glucose cotransporter-2 inhibitors, which slow kidney damage regardless of other measures) and strict management of cardiovascular risk factors (smoking, weight management, blood glucose, hypertension, and moderate physical activity).
Reducing cardiovascular risk
Dr. Alcázar highlighted important factors to keep in mind when managing each of the cardiovascular risk factors. For hypertension, the aim is to achieve levels less than 130/80 mm Hg, although recommendations vary, depending on the guidelines consulted. “KDIGO (Kidney Disease: Improving Global Outcomes) 2021 states that there is no evidence for monitoring diastolic blood pressure, only systolic blood pressure. If we measure it according to the standardized form, SBP should be less than 120 mm Hg, and if not, we would fall back on readings of 130/80 mm Hg.”
For lipid control (specifically, low-density lipoprotein cholesterol), the staging chart indicates that for patients at mild risk, levels should be less than 100 mg/dL; for those at moderate risk, less than 70 mg/dL; and for those at severe risk, less than 55 mg/dL. Hypertriglyceridemia “should only be treated with fibrates if it comes in over 1,000 mg/dL. Also, care must be taken, because these drugs interfere with creatinine excretion, increasing it,” said Dr. Alcázar.
Guidelines from the KDIGO and the American Diabetes Association state that anyone with diabetes and chronic kidney disease should receive a sodium-glucose cotransporter-2 inhibitor if their glomerular filtration rate exceeds 20 mL/min, “which may contradict slightly what it says on the label. Also, if they have hypertension, they should take an angiotensin-converting enzyme inhibitor,” said Dr. Alcázar. He added that “oral antidiabetics, including metformin, must be adjusted based on renal function if glomerular filtration rate is under 30 mL/min.”
Act immediately
When asked whether the course of chronic kidney disease can be changed, Dr. Alcázar responded with an emphatic yes and added that cardiovascular risk can also be substantially reduced. “As nephrologists, we don’t have access to patients in early stages. But family doctors do. Hence the importance of early screening, because going on dialysis at age 60 isn’t the same as at 80.” Currently, “scientific societies are encouraging authorities to screen for chronic kidney disease at earlier ages.”
Regarding drug-based therapy, Dr. Alcázar said that “empagliflozin is not currently indicated for chronic kidney disease in adults.” This sodium-glucose cotransporter-2 inhibitor delays kidney disease and reduces morbidity. Both benefits were highlighted in two recent studies (DAPA-CKD and CREDENCE). Published in January, EMPA-KIDNEY presents a new twist on nephroprotection for patients with chronic kidney disease (diabetic or not) whose glomerular filtration rates are between 20 and 40 mL/min without albuminuria or whose glomerular filtration rates are between 45 and 90 mL/min with albuminuria. For more than 6,000 patients, empagliflozin was observed “to clearly reduce kidney disease progression, cardiovascular mortality and all-cause mortality, and the need to go on dialysis,” stated Dr. Alcázar.
What professionals expect
Dr. Benedito also explained the criteria for referral to a specialist: glomerular filtration rate less than 30 mL/min (unless the patient is older than 80 years and does not have progressively worsening renal function), albumin/creatinine ratio greater than 300 mg/g, acute worsening of renal function, progressive worsening of renal function of greater than 5 mL/min/yr, chronic kidney disease, hypertension treated with triple therapy (including a diuretic) at maximum doses, anemia of less than 10 g/dL, and nonurologic hematuria, especially in combination with albuminuria.
Dr. Benedito explained what nephrologists expect from family doctors in the management of chronic kidney disease: “screening for early detection, identifying and treating risk factors for chronic kidney disease, detecting progression and complications, adjusting drugs based on glomerular filtration rate, and ensuring that our patients are benefiting from sodium-glucose cotransporter-2 inhibitors. These are among the most important steps to be taken.”
Dr. Alcázar mentioned what family doctors expect from nephrologists: “two-way communication, accessibility, coordination of actions to be taken, and using shared and mutually agreed-upon protocols.”
This article was translated from the Medscape Spanish Edition and a version appeared on Medscape.com.
MADRID – A late diagnosis of chronic kidney disease is cause for concern. Scientific societies are therefore advocating for screening at younger ages to reverse this trend and slow the progression of the disease. Nearly all patients seen in primary care are candidates for screening because of their risk factors for kidney disease.
During the 29th National Conference of General and Family Medicine of the Spanish Society for General and Family Physicians, Teresa Benedito, MD, family doctor and member of the society’s cardiovascular group, and Roberto Alcázar, MD, nephrologist at the Infanta Leonor University Hospital, Madrid, presented a clinical case encountered in primary care. They used this case to frame a strong argument for the importance of early screening for chronic kidney disease, and they discussed how to properly manage such screening.
The presentation followed the guidelines in the SEMG publication regarding the management and referral of patients with type 2 diabetes. Dr. Benedito explained that the first thing to ask oneself during a patient visit is “whether they present risk factors for kidney disease. If so, we can’t let them leave before we do a kidney screening.” She then listed the factors in question: age older than 60 years, African heritage, family history of chronic kidney disease, decreased kidney mass, weight loss at birth, hypertension, diabetes, smoking, obesity, and low socioeconomic status.
For his part, Dr. Alcázar mentioned how these factors are similar to cardiovascular risk factors, because “the kidneys are a ball of vessels with double capillarization for purifying blood. They’re the organs with the most arteries per unit of weight, so anything that can damage the arteries can damage the kidneys.”
Candidates for screening
“Chronic kidney disease develops in 15% of the adult population in Spain. So, it’s worth asking how many patients have been diagnosed and who should we should be screening.” To the factors listed above, Dr. Alcázar added treatment with nephrotoxic drugs (including nonsteroidal anti-inflammatory drugs) for patients with obstructive urinary tract disease, and a history of acute kidney injury for patients with chronic autoimmune disease or neoplasms. “Thus, nearly all patients seen in primary care would need to be screened.”
Another fundamental question raised was whether patients should be screened before age 60 years. “As a nephrologist, I feel that we have been diagnosing chronic kidney disease late, even though we’ve been doing everything by the book,” said Dr. Alcázar. In his opinion, “the answer to whether we should be screening earlier ... is yes, for two reasons: first, because it’s cost-effective, and second, because it’s very inexpensive.”
Dr. Benedito explained in detail the process for diagnosing this disease. She began by defining the disease as changes in kidney structure and function that last longer than 3 months. These changes are identified by use of two criteria: glomerular filtration rate less than 60 mL/min and kidney injury or lesions with or without reduced filtration rate (renal biopsy, albumin/creatinine ratio greater than 30 mg/g, proteinuria, alterations in urinary sediment or in imaging tests). Thus, “if one of these two criteria persists for more than 3 months, the diagnosis is chronic kidney disease. Also, high creatinine levels are not diagnostic for the disease,” she emphasized.
Two related parameters
Glomerular filtration and albuminuria “are highly relevant, because screening for chronic kidney disease is based on these two parameters,” said Dr. Benedito. Glomerular filtration rate varies with age, sex, ethnicity, and body mass. It is useful for identifying the stage of the disease and for monitoring disease progression. Albuminuria, on the other hand, is an indication of the severity of the disease. It’s an early marker for kidney injury and systemic disease and is more sensitive than proteinuria. Therefore, “this factor, together with glomerular filtration rate, allows us to detect, classify, and monitor the progression of chronic kidney disease.”
On this point, Dr. Alcázar emphasized the importance of trends, since variation in glomerular filtration depends on serum creatinine, which can vary by nearly 9%. He explained that glomerular filtration rate is related to the number of nephrons remaining. A glomerular filtration rate of less than 60 mL/min implies that more than half of the nephrons in each kidney have been lost. Albuminuria informs about structural damage (that is, the condition of the remaining nephrons). It’s therefore essential to test for both parameters. “We need to be actively monitoring and then making our decisions based on trends and not on isolated results. We need to be aware of albuminuria when we make our decisions,” said Dr. Alcázar. Some studies have shown the importance of testing for albuminuria whenever creatinine level is assessed. “We need to buy into this. If we don’t do this, we’ll only ever have half the information we need.”
Reducing late diagnosis
According to the IBERICAN study, 14% of patients seen in primary care in Spain have chronic kidney disease. “This statistic should make us stop and think, own our responsibility, and ask ourselves why this screening isn’t taking place [earlier],” said Dr. Benedito. She added, “We need to head off this trend toward late diagnosis. As the disease progresses, it significantly increases cardiovascular risk and leads to higher mortality, going on dialysis, transplants, et cetera.”
Dr. Alcázar noted that 80% of nephrology cases that are referred to him come from primary care. He explained the need to understand that “these patients have a sevenfold greater risk of suffering a serious cardiovascular event within the next year than people without kidney problems.” Most of these patients will experience an event, even if they don’t undergo dialysis (stage 3 and those near stage 4).
Correct staging
Also fundamental is having a detailed understanding of how staging is performed. Dr. Benedito explained that a chart that pairs glomerular filtration rate (six categories) with the level of albuminuria (three categories) should be used during the visit. For example, a case might be classified as G3a-A2. However, the simplified form of the chart may prove more practical. It classifies chronic kidney disease as being associated with mild, moderate, and severe risk, using different colors to aid comprehension.
Dr. Alcázar noted that the latest guidelines from the European Society of Hypertension for 2023 include albuminuria as an important parameter. The guidelines indicate that for a patient with moderate or severe risk, it is not necessary to calculate their score. “It’s considered high cardiovascular risk, and steps would need to be taken for intervention.”
He then listed the tools available for reversing albuminuria. The process begins by reducing salt consumption and involves the use of medications (angiotensin-converting enzyme inhibitors/angiotensin II receptor antagonists, aldosterone receptor antagonists, glucagon-like peptide-1 analogues, and sodium-glucose cotransporter-2 inhibitors, which slow kidney damage regardless of other measures) and strict management of cardiovascular risk factors (smoking, weight management, blood glucose, hypertension, and moderate physical activity).
Reducing cardiovascular risk
Dr. Alcázar highlighted important factors to keep in mind when managing each of the cardiovascular risk factors. For hypertension, the aim is to achieve levels less than 130/80 mm Hg, although recommendations vary, depending on the guidelines consulted. “KDIGO (Kidney Disease: Improving Global Outcomes) 2021 states that there is no evidence for monitoring diastolic blood pressure, only systolic blood pressure. If we measure it according to the standardized form, SBP should be less than 120 mm Hg, and if not, we would fall back on readings of 130/80 mm Hg.”
For lipid control (specifically, low-density lipoprotein cholesterol), the staging chart indicates that for patients at mild risk, levels should be less than 100 mg/dL; for those at moderate risk, less than 70 mg/dL; and for those at severe risk, less than 55 mg/dL. Hypertriglyceridemia “should only be treated with fibrates if it comes in over 1,000 mg/dL. Also, care must be taken, because these drugs interfere with creatinine excretion, increasing it,” said Dr. Alcázar.
Guidelines from the KDIGO and the American Diabetes Association state that anyone with diabetes and chronic kidney disease should receive a sodium-glucose cotransporter-2 inhibitor if their glomerular filtration rate exceeds 20 mL/min, “which may contradict slightly what it says on the label. Also, if they have hypertension, they should take an angiotensin-converting enzyme inhibitor,” said Dr. Alcázar. He added that “oral antidiabetics, including metformin, must be adjusted based on renal function if glomerular filtration rate is under 30 mL/min.”
Act immediately
When asked whether the course of chronic kidney disease can be changed, Dr. Alcázar responded with an emphatic yes and added that cardiovascular risk can also be substantially reduced. “As nephrologists, we don’t have access to patients in early stages. But family doctors do. Hence the importance of early screening, because going on dialysis at age 60 isn’t the same as at 80.” Currently, “scientific societies are encouraging authorities to screen for chronic kidney disease at earlier ages.”
Regarding drug-based therapy, Dr. Alcázar said that “empagliflozin is not currently indicated for chronic kidney disease in adults.” This sodium-glucose cotransporter-2 inhibitor delays kidney disease and reduces morbidity. Both benefits were highlighted in two recent studies (DAPA-CKD and CREDENCE). Published in January, EMPA-KIDNEY presents a new twist on nephroprotection for patients with chronic kidney disease (diabetic or not) whose glomerular filtration rates are between 20 and 40 mL/min without albuminuria or whose glomerular filtration rates are between 45 and 90 mL/min with albuminuria. For more than 6,000 patients, empagliflozin was observed “to clearly reduce kidney disease progression, cardiovascular mortality and all-cause mortality, and the need to go on dialysis,” stated Dr. Alcázar.
What professionals expect
Dr. Benedito also explained the criteria for referral to a specialist: glomerular filtration rate less than 30 mL/min (unless the patient is older than 80 years and does not have progressively worsening renal function), albumin/creatinine ratio greater than 300 mg/g, acute worsening of renal function, progressive worsening of renal function of greater than 5 mL/min/yr, chronic kidney disease, hypertension treated with triple therapy (including a diuretic) at maximum doses, anemia of less than 10 g/dL, and nonurologic hematuria, especially in combination with albuminuria.
Dr. Benedito explained what nephrologists expect from family doctors in the management of chronic kidney disease: “screening for early detection, identifying and treating risk factors for chronic kidney disease, detecting progression and complications, adjusting drugs based on glomerular filtration rate, and ensuring that our patients are benefiting from sodium-glucose cotransporter-2 inhibitors. These are among the most important steps to be taken.”
Dr. Alcázar mentioned what family doctors expect from nephrologists: “two-way communication, accessibility, coordination of actions to be taken, and using shared and mutually agreed-upon protocols.”
This article was translated from the Medscape Spanish Edition and a version appeared on Medscape.com.
MADRID – A late diagnosis of chronic kidney disease is cause for concern. Scientific societies are therefore advocating for screening at younger ages to reverse this trend and slow the progression of the disease. Nearly all patients seen in primary care are candidates for screening because of their risk factors for kidney disease.
During the 29th National Conference of General and Family Medicine of the Spanish Society for General and Family Physicians, Teresa Benedito, MD, family doctor and member of the society’s cardiovascular group, and Roberto Alcázar, MD, nephrologist at the Infanta Leonor University Hospital, Madrid, presented a clinical case encountered in primary care. They used this case to frame a strong argument for the importance of early screening for chronic kidney disease, and they discussed how to properly manage such screening.
The presentation followed the guidelines in the SEMG publication regarding the management and referral of patients with type 2 diabetes. Dr. Benedito explained that the first thing to ask oneself during a patient visit is “whether they present risk factors for kidney disease. If so, we can’t let them leave before we do a kidney screening.” She then listed the factors in question: age older than 60 years, African heritage, family history of chronic kidney disease, decreased kidney mass, weight loss at birth, hypertension, diabetes, smoking, obesity, and low socioeconomic status.
For his part, Dr. Alcázar mentioned how these factors are similar to cardiovascular risk factors, because “the kidneys are a ball of vessels with double capillarization for purifying blood. They’re the organs with the most arteries per unit of weight, so anything that can damage the arteries can damage the kidneys.”
Candidates for screening
“Chronic kidney disease develops in 15% of the adult population in Spain. So, it’s worth asking how many patients have been diagnosed and who should we should be screening.” To the factors listed above, Dr. Alcázar added treatment with nephrotoxic drugs (including nonsteroidal anti-inflammatory drugs) for patients with obstructive urinary tract disease, and a history of acute kidney injury for patients with chronic autoimmune disease or neoplasms. “Thus, nearly all patients seen in primary care would need to be screened.”
Another fundamental question raised was whether patients should be screened before age 60 years. “As a nephrologist, I feel that we have been diagnosing chronic kidney disease late, even though we’ve been doing everything by the book,” said Dr. Alcázar. In his opinion, “the answer to whether we should be screening earlier ... is yes, for two reasons: first, because it’s cost-effective, and second, because it’s very inexpensive.”
Dr. Benedito explained in detail the process for diagnosing this disease. She began by defining the disease as changes in kidney structure and function that last longer than 3 months. These changes are identified by use of two criteria: glomerular filtration rate less than 60 mL/min and kidney injury or lesions with or without reduced filtration rate (renal biopsy, albumin/creatinine ratio greater than 30 mg/g, proteinuria, alterations in urinary sediment or in imaging tests). Thus, “if one of these two criteria persists for more than 3 months, the diagnosis is chronic kidney disease. Also, high creatinine levels are not diagnostic for the disease,” she emphasized.
Two related parameters
Glomerular filtration and albuminuria “are highly relevant, because screening for chronic kidney disease is based on these two parameters,” said Dr. Benedito. Glomerular filtration rate varies with age, sex, ethnicity, and body mass. It is useful for identifying the stage of the disease and for monitoring disease progression. Albuminuria, on the other hand, is an indication of the severity of the disease. It’s an early marker for kidney injury and systemic disease and is more sensitive than proteinuria. Therefore, “this factor, together with glomerular filtration rate, allows us to detect, classify, and monitor the progression of chronic kidney disease.”
On this point, Dr. Alcázar emphasized the importance of trends, since variation in glomerular filtration depends on serum creatinine, which can vary by nearly 9%. He explained that glomerular filtration rate is related to the number of nephrons remaining. A glomerular filtration rate of less than 60 mL/min implies that more than half of the nephrons in each kidney have been lost. Albuminuria informs about structural damage (that is, the condition of the remaining nephrons). It’s therefore essential to test for both parameters. “We need to be actively monitoring and then making our decisions based on trends and not on isolated results. We need to be aware of albuminuria when we make our decisions,” said Dr. Alcázar. Some studies have shown the importance of testing for albuminuria whenever creatinine level is assessed. “We need to buy into this. If we don’t do this, we’ll only ever have half the information we need.”
Reducing late diagnosis
According to the IBERICAN study, 14% of patients seen in primary care in Spain have chronic kidney disease. “This statistic should make us stop and think, own our responsibility, and ask ourselves why this screening isn’t taking place [earlier],” said Dr. Benedito. She added, “We need to head off this trend toward late diagnosis. As the disease progresses, it significantly increases cardiovascular risk and leads to higher mortality, going on dialysis, transplants, et cetera.”
Dr. Alcázar noted that 80% of nephrology cases that are referred to him come from primary care. He explained the need to understand that “these patients have a sevenfold greater risk of suffering a serious cardiovascular event within the next year than people without kidney problems.” Most of these patients will experience an event, even if they don’t undergo dialysis (stage 3 and those near stage 4).
Correct staging
Also fundamental is having a detailed understanding of how staging is performed. Dr. Benedito explained that a chart that pairs glomerular filtration rate (six categories) with the level of albuminuria (three categories) should be used during the visit. For example, a case might be classified as G3a-A2. However, the simplified form of the chart may prove more practical. It classifies chronic kidney disease as being associated with mild, moderate, and severe risk, using different colors to aid comprehension.
Dr. Alcázar noted that the latest guidelines from the European Society of Hypertension for 2023 include albuminuria as an important parameter. The guidelines indicate that for a patient with moderate or severe risk, it is not necessary to calculate their score. “It’s considered high cardiovascular risk, and steps would need to be taken for intervention.”
He then listed the tools available for reversing albuminuria. The process begins by reducing salt consumption and involves the use of medications (angiotensin-converting enzyme inhibitors/angiotensin II receptor antagonists, aldosterone receptor antagonists, glucagon-like peptide-1 analogues, and sodium-glucose cotransporter-2 inhibitors, which slow kidney damage regardless of other measures) and strict management of cardiovascular risk factors (smoking, weight management, blood glucose, hypertension, and moderate physical activity).
Reducing cardiovascular risk
Dr. Alcázar highlighted important factors to keep in mind when managing each of the cardiovascular risk factors. For hypertension, the aim is to achieve levels less than 130/80 mm Hg, although recommendations vary, depending on the guidelines consulted. “KDIGO (Kidney Disease: Improving Global Outcomes) 2021 states that there is no evidence for monitoring diastolic blood pressure, only systolic blood pressure. If we measure it according to the standardized form, SBP should be less than 120 mm Hg, and if not, we would fall back on readings of 130/80 mm Hg.”
For lipid control (specifically, low-density lipoprotein cholesterol), the staging chart indicates that for patients at mild risk, levels should be less than 100 mg/dL; for those at moderate risk, less than 70 mg/dL; and for those at severe risk, less than 55 mg/dL. Hypertriglyceridemia “should only be treated with fibrates if it comes in over 1,000 mg/dL. Also, care must be taken, because these drugs interfere with creatinine excretion, increasing it,” said Dr. Alcázar.
Guidelines from the KDIGO and the American Diabetes Association state that anyone with diabetes and chronic kidney disease should receive a sodium-glucose cotransporter-2 inhibitor if their glomerular filtration rate exceeds 20 mL/min, “which may contradict slightly what it says on the label. Also, if they have hypertension, they should take an angiotensin-converting enzyme inhibitor,” said Dr. Alcázar. He added that “oral antidiabetics, including metformin, must be adjusted based on renal function if glomerular filtration rate is under 30 mL/min.”
Act immediately
When asked whether the course of chronic kidney disease can be changed, Dr. Alcázar responded with an emphatic yes and added that cardiovascular risk can also be substantially reduced. “As nephrologists, we don’t have access to patients in early stages. But family doctors do. Hence the importance of early screening, because going on dialysis at age 60 isn’t the same as at 80.” Currently, “scientific societies are encouraging authorities to screen for chronic kidney disease at earlier ages.”
Regarding drug-based therapy, Dr. Alcázar said that “empagliflozin is not currently indicated for chronic kidney disease in adults.” This sodium-glucose cotransporter-2 inhibitor delays kidney disease and reduces morbidity. Both benefits were highlighted in two recent studies (DAPA-CKD and CREDENCE). Published in January, EMPA-KIDNEY presents a new twist on nephroprotection for patients with chronic kidney disease (diabetic or not) whose glomerular filtration rates are between 20 and 40 mL/min without albuminuria or whose glomerular filtration rates are between 45 and 90 mL/min with albuminuria. For more than 6,000 patients, empagliflozin was observed “to clearly reduce kidney disease progression, cardiovascular mortality and all-cause mortality, and the need to go on dialysis,” stated Dr. Alcázar.
What professionals expect
Dr. Benedito also explained the criteria for referral to a specialist: glomerular filtration rate less than 30 mL/min (unless the patient is older than 80 years and does not have progressively worsening renal function), albumin/creatinine ratio greater than 300 mg/g, acute worsening of renal function, progressive worsening of renal function of greater than 5 mL/min/yr, chronic kidney disease, hypertension treated with triple therapy (including a diuretic) at maximum doses, anemia of less than 10 g/dL, and nonurologic hematuria, especially in combination with albuminuria.
Dr. Benedito explained what nephrologists expect from family doctors in the management of chronic kidney disease: “screening for early detection, identifying and treating risk factors for chronic kidney disease, detecting progression and complications, adjusting drugs based on glomerular filtration rate, and ensuring that our patients are benefiting from sodium-glucose cotransporter-2 inhibitors. These are among the most important steps to be taken.”
Dr. Alcázar mentioned what family doctors expect from nephrologists: “two-way communication, accessibility, coordination of actions to be taken, and using shared and mutually agreed-upon protocols.”
This article was translated from the Medscape Spanish Edition and a version appeared on Medscape.com.
U.S. states, counties with highest Alzheimer’s prevalence rates identified
Investigators at Rush University in Chicago found AD prevalence was highest in Maryland, New York, Mississippi, and Florida. At the county level, Miami-Dade in Florida, Baltimore city, and Bronx County in New York were among the U.S. counties with the highest prevalence of the disease.
Such geographical variations may be caused by the unique make-up of regional populations, study investigator Kumar Rajan, PhD, professor of medicine and director of Rush Institute for Healthy Aging, Rush University Medical Center, Chicago, said in an interview.
Dr. Rajan presented the research at the Alzheimer’s Association International Conference.
High-impact research
An estimated 6.7 million Americans are living with AD, a figure that’s expected to double by 2050. Estimating the prevalence of Alzheimer’s across states’ counties can provide a better understanding of region-specific disease burden and have policy implications for resource allocation, Dr. Rajan noted.
To determine the state- and county-specific prevalence of AD, the researchers applied AD data from the Chicago Health and Aging Project, a population-based study that’s about 60% African American, to county- and state-level data from the National Center for Health Statistics.
“We used estimates in our study in Chicago, which began in the 1990s and has approximately 10,800 people, and projected those estimates to county-level populations to see what the variations look like,” said Dr. Rajan.
Of 3,142 counties in 50 states, the East and Southeastern regions of the United States had the highest AD prevalence. For states, the highest rates were in Maryland (12.9%), New York (12.7%), Mississippi (12.5%), and Florida (12.5%).
California and Illinois were also among the top 10 states with the highest prevalence of Alzheimer’s.
California had the highest number of residents, with 719,000 (95% confidence interval, 665,000-774,400), followed by Florida with 579,000 (95% CI, 539,900 to 620,000), and Texas with 459,000 (95% CI, 422,700 to 496,000).
The three counties with the highest prevalence, all with 16.6%, were Miami-Dade County, Baltimore city, and Bronx County.
One county in the top 10 for AD prevalence was El Paso, Tex., which Dr. Rajan found “a bit surprising,” as Texas was not among the top four states with the highest prevalence.
In addition to older age, what’s likely driving elevated AD prevalence in these areas is the substantially larger proportion of minority populations who are at higher risk for AD, possibly due to health disparities, said Dr. Rajan.
Determining local-level estimates of AD should have “a very high impact” on public health programs aimed at AD prevention, detection, and treatment, he said. In addition, as more AD drugs are approved, there will likely be county-level and even state-level implications for Medicare coverage.
In addition, these new findings could help physicians treating or caring for minority populations “understand the landscape of what the disease looks like,” said Dr. Rajan.
A limitation of the study was that it was based on data from a single study, he noted.
The next step is to expand this research. Dr. Rajan and others are establishing the Regional and Ethnic Variations in Alzheimer’s and Cognitive Health Consortium, with the goal of gaining a better understanding of AD prevalence across six U.S. regions.
Optimal resource distribution
In a comment, Percy Griffin, PhD, director of scientific engagement, Alzheimer’s Association, said the research provides useful information about AD prevalence at the local level.
“We need to understand how specific demographics and characteristics can help explain some of the high prevalence in certain areas.”
Compared with White Americans, Dr. Griffin noted that Black Americans are twice as likely to have AD, and older Hispanic Americans are 1.5 times as likely.
This new data will help pinpoint areas of high risk and high need so that funding, staffing, and other resources for those with AD and other dementias can be optimally distributed, he said.
“It gives us that kind of geographic specificity in terms of the prevalence so we can dig deeper and better allocate resources on a county level,” he added.
The Alzheimer’s Association “is fully committed to working with local agencies and being in the communities to assist them in their efforts to intervene in this disease.”
The study also highlights the need for more research to determine what factors other than age and race – such as potential environmental factors – might affect regional AD prevalence, he said.
The study received funding from the National Institutes of Health. Dr. Rajan and Dr. Griffin reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Investigators at Rush University in Chicago found AD prevalence was highest in Maryland, New York, Mississippi, and Florida. At the county level, Miami-Dade in Florida, Baltimore city, and Bronx County in New York were among the U.S. counties with the highest prevalence of the disease.
Such geographical variations may be caused by the unique make-up of regional populations, study investigator Kumar Rajan, PhD, professor of medicine and director of Rush Institute for Healthy Aging, Rush University Medical Center, Chicago, said in an interview.
Dr. Rajan presented the research at the Alzheimer’s Association International Conference.
High-impact research
An estimated 6.7 million Americans are living with AD, a figure that’s expected to double by 2050. Estimating the prevalence of Alzheimer’s across states’ counties can provide a better understanding of region-specific disease burden and have policy implications for resource allocation, Dr. Rajan noted.
To determine the state- and county-specific prevalence of AD, the researchers applied AD data from the Chicago Health and Aging Project, a population-based study that’s about 60% African American, to county- and state-level data from the National Center for Health Statistics.
“We used estimates in our study in Chicago, which began in the 1990s and has approximately 10,800 people, and projected those estimates to county-level populations to see what the variations look like,” said Dr. Rajan.
Of 3,142 counties in 50 states, the East and Southeastern regions of the United States had the highest AD prevalence. For states, the highest rates were in Maryland (12.9%), New York (12.7%), Mississippi (12.5%), and Florida (12.5%).
California and Illinois were also among the top 10 states with the highest prevalence of Alzheimer’s.
California had the highest number of residents, with 719,000 (95% confidence interval, 665,000-774,400), followed by Florida with 579,000 (95% CI, 539,900 to 620,000), and Texas with 459,000 (95% CI, 422,700 to 496,000).
The three counties with the highest prevalence, all with 16.6%, were Miami-Dade County, Baltimore city, and Bronx County.
One county in the top 10 for AD prevalence was El Paso, Tex., which Dr. Rajan found “a bit surprising,” as Texas was not among the top four states with the highest prevalence.
In addition to older age, what’s likely driving elevated AD prevalence in these areas is the substantially larger proportion of minority populations who are at higher risk for AD, possibly due to health disparities, said Dr. Rajan.
Determining local-level estimates of AD should have “a very high impact” on public health programs aimed at AD prevention, detection, and treatment, he said. In addition, as more AD drugs are approved, there will likely be county-level and even state-level implications for Medicare coverage.
In addition, these new findings could help physicians treating or caring for minority populations “understand the landscape of what the disease looks like,” said Dr. Rajan.
A limitation of the study was that it was based on data from a single study, he noted.
The next step is to expand this research. Dr. Rajan and others are establishing the Regional and Ethnic Variations in Alzheimer’s and Cognitive Health Consortium, with the goal of gaining a better understanding of AD prevalence across six U.S. regions.
Optimal resource distribution
In a comment, Percy Griffin, PhD, director of scientific engagement, Alzheimer’s Association, said the research provides useful information about AD prevalence at the local level.
“We need to understand how specific demographics and characteristics can help explain some of the high prevalence in certain areas.”
Compared with White Americans, Dr. Griffin noted that Black Americans are twice as likely to have AD, and older Hispanic Americans are 1.5 times as likely.
This new data will help pinpoint areas of high risk and high need so that funding, staffing, and other resources for those with AD and other dementias can be optimally distributed, he said.
“It gives us that kind of geographic specificity in terms of the prevalence so we can dig deeper and better allocate resources on a county level,” he added.
The Alzheimer’s Association “is fully committed to working with local agencies and being in the communities to assist them in their efforts to intervene in this disease.”
The study also highlights the need for more research to determine what factors other than age and race – such as potential environmental factors – might affect regional AD prevalence, he said.
The study received funding from the National Institutes of Health. Dr. Rajan and Dr. Griffin reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Investigators at Rush University in Chicago found AD prevalence was highest in Maryland, New York, Mississippi, and Florida. At the county level, Miami-Dade in Florida, Baltimore city, and Bronx County in New York were among the U.S. counties with the highest prevalence of the disease.
Such geographical variations may be caused by the unique make-up of regional populations, study investigator Kumar Rajan, PhD, professor of medicine and director of Rush Institute for Healthy Aging, Rush University Medical Center, Chicago, said in an interview.
Dr. Rajan presented the research at the Alzheimer’s Association International Conference.
High-impact research
An estimated 6.7 million Americans are living with AD, a figure that’s expected to double by 2050. Estimating the prevalence of Alzheimer’s across states’ counties can provide a better understanding of region-specific disease burden and have policy implications for resource allocation, Dr. Rajan noted.
To determine the state- and county-specific prevalence of AD, the researchers applied AD data from the Chicago Health and Aging Project, a population-based study that’s about 60% African American, to county- and state-level data from the National Center for Health Statistics.
“We used estimates in our study in Chicago, which began in the 1990s and has approximately 10,800 people, and projected those estimates to county-level populations to see what the variations look like,” said Dr. Rajan.
Of 3,142 counties in 50 states, the East and Southeastern regions of the United States had the highest AD prevalence. For states, the highest rates were in Maryland (12.9%), New York (12.7%), Mississippi (12.5%), and Florida (12.5%).
California and Illinois were also among the top 10 states with the highest prevalence of Alzheimer’s.
California had the highest number of residents, with 719,000 (95% confidence interval, 665,000-774,400), followed by Florida with 579,000 (95% CI, 539,900 to 620,000), and Texas with 459,000 (95% CI, 422,700 to 496,000).
The three counties with the highest prevalence, all with 16.6%, were Miami-Dade County, Baltimore city, and Bronx County.
One county in the top 10 for AD prevalence was El Paso, Tex., which Dr. Rajan found “a bit surprising,” as Texas was not among the top four states with the highest prevalence.
In addition to older age, what’s likely driving elevated AD prevalence in these areas is the substantially larger proportion of minority populations who are at higher risk for AD, possibly due to health disparities, said Dr. Rajan.
Determining local-level estimates of AD should have “a very high impact” on public health programs aimed at AD prevention, detection, and treatment, he said. In addition, as more AD drugs are approved, there will likely be county-level and even state-level implications for Medicare coverage.
In addition, these new findings could help physicians treating or caring for minority populations “understand the landscape of what the disease looks like,” said Dr. Rajan.
A limitation of the study was that it was based on data from a single study, he noted.
The next step is to expand this research. Dr. Rajan and others are establishing the Regional and Ethnic Variations in Alzheimer’s and Cognitive Health Consortium, with the goal of gaining a better understanding of AD prevalence across six U.S. regions.
Optimal resource distribution
In a comment, Percy Griffin, PhD, director of scientific engagement, Alzheimer’s Association, said the research provides useful information about AD prevalence at the local level.
“We need to understand how specific demographics and characteristics can help explain some of the high prevalence in certain areas.”
Compared with White Americans, Dr. Griffin noted that Black Americans are twice as likely to have AD, and older Hispanic Americans are 1.5 times as likely.
This new data will help pinpoint areas of high risk and high need so that funding, staffing, and other resources for those with AD and other dementias can be optimally distributed, he said.
“It gives us that kind of geographic specificity in terms of the prevalence so we can dig deeper and better allocate resources on a county level,” he added.
The Alzheimer’s Association “is fully committed to working with local agencies and being in the communities to assist them in their efforts to intervene in this disease.”
The study also highlights the need for more research to determine what factors other than age and race – such as potential environmental factors – might affect regional AD prevalence, he said.
The study received funding from the National Institutes of Health. Dr. Rajan and Dr. Griffin reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
FROM AAIC 2023
Naltrexone is safe and beneficial in AUD with cirrhosis
VIENNA – , results of the first randomized controlled trial (RCT) show.
After 3 months, 64% of patients who received naltrexone were abstinent from alcohol, compared with 22% of patients who received placebo, Manasa Alla, MD, a hepatologist from the Institute of Liver and Biliary Sciences (ILBS), New Delhi, said at the European Association for the Study of the Liver (EASL) 2023, where she presented the study findings.
Importantly, naltrexone was found to be safe for patients with compensated cirrhosis. “This fragile population of patients has limited drugs to help them quit alcohol. Naltrexone can be a valuable addition to their measures to reduce craving and on their journey to reach de-addiction and abstinence,” Dr. Alla said.
Hepatotoxicity with naltrexone is rare and data are limited. The Food and Drug Administration previously placed a warning on its use for patients with alcoholic liver disease and underlying cirrhosis.
As a clinician constantly challenged with treating patients with AUD and cirrhosis, Dr. Alla wanted to explore the safety of naltrexone and to test its suitability for these patients who struggle to quit alcohol.
“Here we aimed to primarily test the safety of naltrexone in achieving abstinence and reducing alcohol cravings in patients with alcohol-related cirrhosis,” she said, adding, “The FDA black box warning has been removed, but it has never been tested in an RCT in patients with cirrhosis, so this is exactly what we did here.
“Naltrexone is a very good anti-alcohol-craving drug. If we can establish its safety in cirrhotic patients, it may have very good potential in reducing AUD and reducing the related complications of continued alcohol intake,” Dr. Alla said.
Safety, abstinence, lapse, and relapse assessed
The prospective, double-blind, single-center study at the ILBS in New Delhi, enrolled 100 patients with alcohol dependence and cirrhosis between 2020 and 2022. Participants were randomly assigned in a 1:1 ratio to receive naltrexone (50 mg/d) or placebo for 12 weeks. All participants attended regular counseling sessions with the resident psychiatrist. At baseline, the biochemical and drinking-related assessment scores between active and placebo groups of patients with compensated cirrhosis were matched.
Abstinence from alcohol was assessed through self-reported mean number of standard drinks (12 g alcohol per day). Findings were corroborated through an interview with a family member. Serum ethyl glucuronide levels were measured in cases of discrepancy. A relapse was considered to be consumption of over four standard alcoholic drinks/month; a lapse was considered any other alcohol drinking event not classified as relapse.
The primary outcome was the proportion of patients who achieved and maintained alcohol abstinence at 12 weeks; secondary outcomes were the proportion of patients who took naltrexone without a liver-related adverse effect compared with placebo at 12 weeks, the number of relapses and lapses, the difference in craving scores on the Obsessive Compulsive Drinking Scale (OCDS) between groups at 4, 8, and 12 weeks and at 6 months and 12 months, and the proportion of patients who achieved and maintained alcohol abstinence at 6 months.
Abstinence at 3 months
After 3 months, abstinence was noted in 64% of the study population who received naltrexone, compared to 22% of those who received placebo (P < .001). At 6 months, a higher proportion of patients in the naltrexone group achieved abstinence (22% vs. 8% with placebo; P = .09).
“We still need to look at the longer-term effects of naltrexone,” Dr. Alla said. “Here we gave the drug plus counseling for 3 months only, so despite encouraging findings, we need further studies to understand more.”
The researchers analyzed the predictors of abstinence at 3 months. They found that patients who consumed fewer than 17 drinks per month at baseline were more likely to achieve abstinence (sensitivity, 81%).
“Our study showed that patients who are consuming less alcohol at baseline can quit alcohol if adequately motivated. We need the motivation, as well as the drug,” she said.
Patient counseling was also very important and was provided for the 3 months of the study. “Even in the placebo arm, we had some patients who became abstinent [11/50 patients], but this dropped at 6 months [to 4/50],” Dr. Alla said.
At 12 weeks, 28% in the naltrexone group experienced relapse, vs. 72% in the placebo group (P < .001). Regarding the secondary outcome of craving scores and how they were affected by naltrexone, the mean OCDS-O (obsessive element) scores were 6.63, compared with 9.29 in naltrexone and placebo, respectively (P < .01). The mean OCDS-C (compulsive element) scores were 6.34 and 9.02, respectively (P < .01).
“Most important, was the safety of naltrexone in this study,” she said. There were no significant adverse events in either arm, and only one patient discontinued the drug in the naltrexone arm. Three patients in the naltrexone group who continued alcohol consumption developed jaundice, “so the jaundice can be attributed to continuous alcohol intake and may not be secondary to the naltrexone per se. We concluded that naltrexone is safe in a compensated cirrhotic patient,” Dr. Alla said.
Regarding other adverse events, 13.7% of patients experienced gastritis with naltrexone, vs. 3.7% among patients who received placebo. Nausea was more common in the placebo group, at 11.1% compared with 6.8% among patients who received naltrexone. Vomiting was more common in the naltrexone arm, at 10.3% vs. 7.4% with placebo. None of these differences reached statistical significance.
A longer-term study and comparisons to other drugs would provide valuable insights going forward.
Moderator Aleksander Krag, MD, professor and head of hepatology at the University of Southern Denmark and Odense University Hospital, Denmark, said: “Any intervention that can reduce or stop alcohol use in patients with cirrhosis and more advanced cirrhosis will improve outcome as well as reduce complications and mortality.
“In some cases, alcohol rehabilitation can completely revert the damaged liver. We have lots of data that show that continuous alcohol use at the more advanced stages can be devastating and reduction [in alcohol use] improves outcome. Therefore, any intervention that can help us to achieve this on behalf of all patients is most welcome,” he said.
Naltrexone (ADDTREX) and identical placebos were supplied by Rusan Pharma. Dr. Alla has disclosed no relevant financial relationships. Dr. Krag has served as speaker for Norgine, Siemens, and Nordic Bioscience and has participated in advisory boards for Norgine and Siemens outside the submitted work. He receives royalties from Gyldendal and Echosens.
A version of this article appeared on Medscape.com.
VIENNA – , results of the first randomized controlled trial (RCT) show.
After 3 months, 64% of patients who received naltrexone were abstinent from alcohol, compared with 22% of patients who received placebo, Manasa Alla, MD, a hepatologist from the Institute of Liver and Biliary Sciences (ILBS), New Delhi, said at the European Association for the Study of the Liver (EASL) 2023, where she presented the study findings.
Importantly, naltrexone was found to be safe for patients with compensated cirrhosis. “This fragile population of patients has limited drugs to help them quit alcohol. Naltrexone can be a valuable addition to their measures to reduce craving and on their journey to reach de-addiction and abstinence,” Dr. Alla said.
Hepatotoxicity with naltrexone is rare and data are limited. The Food and Drug Administration previously placed a warning on its use for patients with alcoholic liver disease and underlying cirrhosis.
As a clinician constantly challenged with treating patients with AUD and cirrhosis, Dr. Alla wanted to explore the safety of naltrexone and to test its suitability for these patients who struggle to quit alcohol.
“Here we aimed to primarily test the safety of naltrexone in achieving abstinence and reducing alcohol cravings in patients with alcohol-related cirrhosis,” she said, adding, “The FDA black box warning has been removed, but it has never been tested in an RCT in patients with cirrhosis, so this is exactly what we did here.
“Naltrexone is a very good anti-alcohol-craving drug. If we can establish its safety in cirrhotic patients, it may have very good potential in reducing AUD and reducing the related complications of continued alcohol intake,” Dr. Alla said.
Safety, abstinence, lapse, and relapse assessed
The prospective, double-blind, single-center study at the ILBS in New Delhi, enrolled 100 patients with alcohol dependence and cirrhosis between 2020 and 2022. Participants were randomly assigned in a 1:1 ratio to receive naltrexone (50 mg/d) or placebo for 12 weeks. All participants attended regular counseling sessions with the resident psychiatrist. At baseline, the biochemical and drinking-related assessment scores between active and placebo groups of patients with compensated cirrhosis were matched.
Abstinence from alcohol was assessed through self-reported mean number of standard drinks (12 g alcohol per day). Findings were corroborated through an interview with a family member. Serum ethyl glucuronide levels were measured in cases of discrepancy. A relapse was considered to be consumption of over four standard alcoholic drinks/month; a lapse was considered any other alcohol drinking event not classified as relapse.
The primary outcome was the proportion of patients who achieved and maintained alcohol abstinence at 12 weeks; secondary outcomes were the proportion of patients who took naltrexone without a liver-related adverse effect compared with placebo at 12 weeks, the number of relapses and lapses, the difference in craving scores on the Obsessive Compulsive Drinking Scale (OCDS) between groups at 4, 8, and 12 weeks and at 6 months and 12 months, and the proportion of patients who achieved and maintained alcohol abstinence at 6 months.
Abstinence at 3 months
After 3 months, abstinence was noted in 64% of the study population who received naltrexone, compared to 22% of those who received placebo (P < .001). At 6 months, a higher proportion of patients in the naltrexone group achieved abstinence (22% vs. 8% with placebo; P = .09).
“We still need to look at the longer-term effects of naltrexone,” Dr. Alla said. “Here we gave the drug plus counseling for 3 months only, so despite encouraging findings, we need further studies to understand more.”
The researchers analyzed the predictors of abstinence at 3 months. They found that patients who consumed fewer than 17 drinks per month at baseline were more likely to achieve abstinence (sensitivity, 81%).
“Our study showed that patients who are consuming less alcohol at baseline can quit alcohol if adequately motivated. We need the motivation, as well as the drug,” she said.
Patient counseling was also very important and was provided for the 3 months of the study. “Even in the placebo arm, we had some patients who became abstinent [11/50 patients], but this dropped at 6 months [to 4/50],” Dr. Alla said.
At 12 weeks, 28% in the naltrexone group experienced relapse, vs. 72% in the placebo group (P < .001). Regarding the secondary outcome of craving scores and how they were affected by naltrexone, the mean OCDS-O (obsessive element) scores were 6.63, compared with 9.29 in naltrexone and placebo, respectively (P < .01). The mean OCDS-C (compulsive element) scores were 6.34 and 9.02, respectively (P < .01).
“Most important, was the safety of naltrexone in this study,” she said. There were no significant adverse events in either arm, and only one patient discontinued the drug in the naltrexone arm. Three patients in the naltrexone group who continued alcohol consumption developed jaundice, “so the jaundice can be attributed to continuous alcohol intake and may not be secondary to the naltrexone per se. We concluded that naltrexone is safe in a compensated cirrhotic patient,” Dr. Alla said.
Regarding other adverse events, 13.7% of patients experienced gastritis with naltrexone, vs. 3.7% among patients who received placebo. Nausea was more common in the placebo group, at 11.1% compared with 6.8% among patients who received naltrexone. Vomiting was more common in the naltrexone arm, at 10.3% vs. 7.4% with placebo. None of these differences reached statistical significance.
A longer-term study and comparisons to other drugs would provide valuable insights going forward.
Moderator Aleksander Krag, MD, professor and head of hepatology at the University of Southern Denmark and Odense University Hospital, Denmark, said: “Any intervention that can reduce or stop alcohol use in patients with cirrhosis and more advanced cirrhosis will improve outcome as well as reduce complications and mortality.
“In some cases, alcohol rehabilitation can completely revert the damaged liver. We have lots of data that show that continuous alcohol use at the more advanced stages can be devastating and reduction [in alcohol use] improves outcome. Therefore, any intervention that can help us to achieve this on behalf of all patients is most welcome,” he said.
Naltrexone (ADDTREX) and identical placebos were supplied by Rusan Pharma. Dr. Alla has disclosed no relevant financial relationships. Dr. Krag has served as speaker for Norgine, Siemens, and Nordic Bioscience and has participated in advisory boards for Norgine and Siemens outside the submitted work. He receives royalties from Gyldendal and Echosens.
A version of this article appeared on Medscape.com.
VIENNA – , results of the first randomized controlled trial (RCT) show.
After 3 months, 64% of patients who received naltrexone were abstinent from alcohol, compared with 22% of patients who received placebo, Manasa Alla, MD, a hepatologist from the Institute of Liver and Biliary Sciences (ILBS), New Delhi, said at the European Association for the Study of the Liver (EASL) 2023, where she presented the study findings.
Importantly, naltrexone was found to be safe for patients with compensated cirrhosis. “This fragile population of patients has limited drugs to help them quit alcohol. Naltrexone can be a valuable addition to their measures to reduce craving and on their journey to reach de-addiction and abstinence,” Dr. Alla said.
Hepatotoxicity with naltrexone is rare and data are limited. The Food and Drug Administration previously placed a warning on its use for patients with alcoholic liver disease and underlying cirrhosis.
As a clinician constantly challenged with treating patients with AUD and cirrhosis, Dr. Alla wanted to explore the safety of naltrexone and to test its suitability for these patients who struggle to quit alcohol.
“Here we aimed to primarily test the safety of naltrexone in achieving abstinence and reducing alcohol cravings in patients with alcohol-related cirrhosis,” she said, adding, “The FDA black box warning has been removed, but it has never been tested in an RCT in patients with cirrhosis, so this is exactly what we did here.
“Naltrexone is a very good anti-alcohol-craving drug. If we can establish its safety in cirrhotic patients, it may have very good potential in reducing AUD and reducing the related complications of continued alcohol intake,” Dr. Alla said.
Safety, abstinence, lapse, and relapse assessed
The prospective, double-blind, single-center study at the ILBS in New Delhi, enrolled 100 patients with alcohol dependence and cirrhosis between 2020 and 2022. Participants were randomly assigned in a 1:1 ratio to receive naltrexone (50 mg/d) or placebo for 12 weeks. All participants attended regular counseling sessions with the resident psychiatrist. At baseline, the biochemical and drinking-related assessment scores between active and placebo groups of patients with compensated cirrhosis were matched.
Abstinence from alcohol was assessed through self-reported mean number of standard drinks (12 g alcohol per day). Findings were corroborated through an interview with a family member. Serum ethyl glucuronide levels were measured in cases of discrepancy. A relapse was considered to be consumption of over four standard alcoholic drinks/month; a lapse was considered any other alcohol drinking event not classified as relapse.
The primary outcome was the proportion of patients who achieved and maintained alcohol abstinence at 12 weeks; secondary outcomes were the proportion of patients who took naltrexone without a liver-related adverse effect compared with placebo at 12 weeks, the number of relapses and lapses, the difference in craving scores on the Obsessive Compulsive Drinking Scale (OCDS) between groups at 4, 8, and 12 weeks and at 6 months and 12 months, and the proportion of patients who achieved and maintained alcohol abstinence at 6 months.
Abstinence at 3 months
After 3 months, abstinence was noted in 64% of the study population who received naltrexone, compared to 22% of those who received placebo (P < .001). At 6 months, a higher proportion of patients in the naltrexone group achieved abstinence (22% vs. 8% with placebo; P = .09).
“We still need to look at the longer-term effects of naltrexone,” Dr. Alla said. “Here we gave the drug plus counseling for 3 months only, so despite encouraging findings, we need further studies to understand more.”
The researchers analyzed the predictors of abstinence at 3 months. They found that patients who consumed fewer than 17 drinks per month at baseline were more likely to achieve abstinence (sensitivity, 81%).
“Our study showed that patients who are consuming less alcohol at baseline can quit alcohol if adequately motivated. We need the motivation, as well as the drug,” she said.
Patient counseling was also very important and was provided for the 3 months of the study. “Even in the placebo arm, we had some patients who became abstinent [11/50 patients], but this dropped at 6 months [to 4/50],” Dr. Alla said.
At 12 weeks, 28% in the naltrexone group experienced relapse, vs. 72% in the placebo group (P < .001). Regarding the secondary outcome of craving scores and how they were affected by naltrexone, the mean OCDS-O (obsessive element) scores were 6.63, compared with 9.29 in naltrexone and placebo, respectively (P < .01). The mean OCDS-C (compulsive element) scores were 6.34 and 9.02, respectively (P < .01).
“Most important, was the safety of naltrexone in this study,” she said. There were no significant adverse events in either arm, and only one patient discontinued the drug in the naltrexone arm. Three patients in the naltrexone group who continued alcohol consumption developed jaundice, “so the jaundice can be attributed to continuous alcohol intake and may not be secondary to the naltrexone per se. We concluded that naltrexone is safe in a compensated cirrhotic patient,” Dr. Alla said.
Regarding other adverse events, 13.7% of patients experienced gastritis with naltrexone, vs. 3.7% among patients who received placebo. Nausea was more common in the placebo group, at 11.1% compared with 6.8% among patients who received naltrexone. Vomiting was more common in the naltrexone arm, at 10.3% vs. 7.4% with placebo. None of these differences reached statistical significance.
A longer-term study and comparisons to other drugs would provide valuable insights going forward.
Moderator Aleksander Krag, MD, professor and head of hepatology at the University of Southern Denmark and Odense University Hospital, Denmark, said: “Any intervention that can reduce or stop alcohol use in patients with cirrhosis and more advanced cirrhosis will improve outcome as well as reduce complications and mortality.
“In some cases, alcohol rehabilitation can completely revert the damaged liver. We have lots of data that show that continuous alcohol use at the more advanced stages can be devastating and reduction [in alcohol use] improves outcome. Therefore, any intervention that can help us to achieve this on behalf of all patients is most welcome,” he said.
Naltrexone (ADDTREX) and identical placebos were supplied by Rusan Pharma. Dr. Alla has disclosed no relevant financial relationships. Dr. Krag has served as speaker for Norgine, Siemens, and Nordic Bioscience and has participated in advisory boards for Norgine and Siemens outside the submitted work. He receives royalties from Gyldendal and Echosens.
A version of this article appeared on Medscape.com.
AT EASL CONGRESS 2023