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A simple new definition for ‘metabolically healthy obesity’?
Scientists have proposed a simple new definition for “metabolically healthy obesity” to identify individuals who do not have an increased risk of cardiovascular disease (CVD) death and total mortality.
The team – led by Anika Zembic, MPH, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany – performed an assessment of anthropometric and metabolic risk factors as well as mortality data from two cohorts that “yielded a simple definition to categorize participants with obesity as metabolically healthy or unhealthy.”
They defined “metabolically healthy” as systolic blood pressure <130 mm Hg and no use of blood pressure-lowering medication; waist-to-hip ratio <0.95 (in women) and <1.03 (in men); and no prevalent type 2 diabetes.
Based on this new definition, 42% of participants in the third U.S. National Health and Nutrition Examination Survey (NHANES-III) and 19% of participants in the UK Biobank study had metabolically healthy obesity and did not have an increased risk for CVD mortality and total mortality compared with individuals with metabolically healthy normal weight.
“People with a phenotype defined as metabolically unhealthy using this definition had significantly higher hazard ratios for [CVD] mortality and total mortality irrespective of body mass index category, and people with phenotypes defined as having metabolically healthy obesity displayed no increased risk,” the researchers noted in their article, published May 7 in JAMA Network Open.
“Our new definition may be important not only to stratify risk of mortality in people with obesity, but also in people with overweight and normal weight,” they concluded.
Thirty different definitions of ‘metabolically healthy obesity’
“To date, there is no universally accepted standard for defining [metabolically healthy obesity] and more than 30 different definitions have been used to operationalize the phenotypes in studies,” which may explain the “continued unresolved debate” about outcomes in patients with metabolically unhealthy obesity, Ayana K. April-Sanders, PhD, and Carlos J. Rodriguez, MD, MPH, from Albert Einstein College of Medicine, New York, wrote in an accompanying commentary.
The current study, they noted, suggests that waist-to-hip ratio is a better measure of central adiposity than waist circumference, and that the effect of dyslipidemia on CVD mortality may be weaker among individuals with obesity.
However, the findings may not be generalizable to other CVD outcomes, they cautioned.
And importantly, some individuals with metabolically healthy obesity will likely transition to unhealthy obesity over time due to weight gain, aging, and lack of physical activity.
Therefore, “the present study provides a prototype of how that definition can be derived, but more rigorous tests and evidence using similar techniques are needed, particularly in prospective studies,” according to Dr. April-Sanders and Dr. Rodriguez.
They call for more research to establish a standardized definition of metabolically healthy obesity and then, using that definition, to determine the prevalence of healthy and unhealthy obesity and identify factors that preserve healthy obesity.
Definition developed from NHANES cohort, validated in UK biobank
Ms. Zembic and colleagues explained that previous definitions for metabolically healthy obesity were mainly based on the absence of either metabolic syndrome or insulin resistance, but some individuals with obesity but without metabolic disease still have increased risks of CVD mortality and total mortality.
To develop a more precise definition of metabolically healthy obesity, the researchers analyzed data from 12,341 individuals in the United States who participated in NHANES-III, conducted between 1988 and 1994. The individuals were a mean age of 42 and 51% were women, and they were followed for an average of 14.5 years.
The researchers validated this definition using data from 374,079 individuals in the population-based UK Biobank cohort who were assessed in 2006 to 2010. Those individuals were a mean age of 56 and 55% were women, and they were followed for a mean of 7.8 years.
The combination of systolic blood pressure and waist-to-hip ratio had the strongest association with CVD mortality and total mortality, and the prevalence of type 2 diabetes was also associated with greater risk.
Regardless of BMI, all groups of metabolically unhealthy individuals had increased risks of CVD mortality and total mortality.
The study and some of the researchers were supported by grants from the German Federal Ministry of Education and Research.
A version of this article first appeared on Medscape.com.
Scientists have proposed a simple new definition for “metabolically healthy obesity” to identify individuals who do not have an increased risk of cardiovascular disease (CVD) death and total mortality.
The team – led by Anika Zembic, MPH, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany – performed an assessment of anthropometric and metabolic risk factors as well as mortality data from two cohorts that “yielded a simple definition to categorize participants with obesity as metabolically healthy or unhealthy.”
They defined “metabolically healthy” as systolic blood pressure <130 mm Hg and no use of blood pressure-lowering medication; waist-to-hip ratio <0.95 (in women) and <1.03 (in men); and no prevalent type 2 diabetes.
Based on this new definition, 42% of participants in the third U.S. National Health and Nutrition Examination Survey (NHANES-III) and 19% of participants in the UK Biobank study had metabolically healthy obesity and did not have an increased risk for CVD mortality and total mortality compared with individuals with metabolically healthy normal weight.
“People with a phenotype defined as metabolically unhealthy using this definition had significantly higher hazard ratios for [CVD] mortality and total mortality irrespective of body mass index category, and people with phenotypes defined as having metabolically healthy obesity displayed no increased risk,” the researchers noted in their article, published May 7 in JAMA Network Open.
“Our new definition may be important not only to stratify risk of mortality in people with obesity, but also in people with overweight and normal weight,” they concluded.
Thirty different definitions of ‘metabolically healthy obesity’
“To date, there is no universally accepted standard for defining [metabolically healthy obesity] and more than 30 different definitions have been used to operationalize the phenotypes in studies,” which may explain the “continued unresolved debate” about outcomes in patients with metabolically unhealthy obesity, Ayana K. April-Sanders, PhD, and Carlos J. Rodriguez, MD, MPH, from Albert Einstein College of Medicine, New York, wrote in an accompanying commentary.
The current study, they noted, suggests that waist-to-hip ratio is a better measure of central adiposity than waist circumference, and that the effect of dyslipidemia on CVD mortality may be weaker among individuals with obesity.
However, the findings may not be generalizable to other CVD outcomes, they cautioned.
And importantly, some individuals with metabolically healthy obesity will likely transition to unhealthy obesity over time due to weight gain, aging, and lack of physical activity.
Therefore, “the present study provides a prototype of how that definition can be derived, but more rigorous tests and evidence using similar techniques are needed, particularly in prospective studies,” according to Dr. April-Sanders and Dr. Rodriguez.
They call for more research to establish a standardized definition of metabolically healthy obesity and then, using that definition, to determine the prevalence of healthy and unhealthy obesity and identify factors that preserve healthy obesity.
Definition developed from NHANES cohort, validated in UK biobank
Ms. Zembic and colleagues explained that previous definitions for metabolically healthy obesity were mainly based on the absence of either metabolic syndrome or insulin resistance, but some individuals with obesity but without metabolic disease still have increased risks of CVD mortality and total mortality.
To develop a more precise definition of metabolically healthy obesity, the researchers analyzed data from 12,341 individuals in the United States who participated in NHANES-III, conducted between 1988 and 1994. The individuals were a mean age of 42 and 51% were women, and they were followed for an average of 14.5 years.
The researchers validated this definition using data from 374,079 individuals in the population-based UK Biobank cohort who were assessed in 2006 to 2010. Those individuals were a mean age of 56 and 55% were women, and they were followed for a mean of 7.8 years.
The combination of systolic blood pressure and waist-to-hip ratio had the strongest association with CVD mortality and total mortality, and the prevalence of type 2 diabetes was also associated with greater risk.
Regardless of BMI, all groups of metabolically unhealthy individuals had increased risks of CVD mortality and total mortality.
The study and some of the researchers were supported by grants from the German Federal Ministry of Education and Research.
A version of this article first appeared on Medscape.com.
Scientists have proposed a simple new definition for “metabolically healthy obesity” to identify individuals who do not have an increased risk of cardiovascular disease (CVD) death and total mortality.
The team – led by Anika Zembic, MPH, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany – performed an assessment of anthropometric and metabolic risk factors as well as mortality data from two cohorts that “yielded a simple definition to categorize participants with obesity as metabolically healthy or unhealthy.”
They defined “metabolically healthy” as systolic blood pressure <130 mm Hg and no use of blood pressure-lowering medication; waist-to-hip ratio <0.95 (in women) and <1.03 (in men); and no prevalent type 2 diabetes.
Based on this new definition, 42% of participants in the third U.S. National Health and Nutrition Examination Survey (NHANES-III) and 19% of participants in the UK Biobank study had metabolically healthy obesity and did not have an increased risk for CVD mortality and total mortality compared with individuals with metabolically healthy normal weight.
“People with a phenotype defined as metabolically unhealthy using this definition had significantly higher hazard ratios for [CVD] mortality and total mortality irrespective of body mass index category, and people with phenotypes defined as having metabolically healthy obesity displayed no increased risk,” the researchers noted in their article, published May 7 in JAMA Network Open.
“Our new definition may be important not only to stratify risk of mortality in people with obesity, but also in people with overweight and normal weight,” they concluded.
Thirty different definitions of ‘metabolically healthy obesity’
“To date, there is no universally accepted standard for defining [metabolically healthy obesity] and more than 30 different definitions have been used to operationalize the phenotypes in studies,” which may explain the “continued unresolved debate” about outcomes in patients with metabolically unhealthy obesity, Ayana K. April-Sanders, PhD, and Carlos J. Rodriguez, MD, MPH, from Albert Einstein College of Medicine, New York, wrote in an accompanying commentary.
The current study, they noted, suggests that waist-to-hip ratio is a better measure of central adiposity than waist circumference, and that the effect of dyslipidemia on CVD mortality may be weaker among individuals with obesity.
However, the findings may not be generalizable to other CVD outcomes, they cautioned.
And importantly, some individuals with metabolically healthy obesity will likely transition to unhealthy obesity over time due to weight gain, aging, and lack of physical activity.
Therefore, “the present study provides a prototype of how that definition can be derived, but more rigorous tests and evidence using similar techniques are needed, particularly in prospective studies,” according to Dr. April-Sanders and Dr. Rodriguez.
They call for more research to establish a standardized definition of metabolically healthy obesity and then, using that definition, to determine the prevalence of healthy and unhealthy obesity and identify factors that preserve healthy obesity.
Definition developed from NHANES cohort, validated in UK biobank
Ms. Zembic and colleagues explained that previous definitions for metabolically healthy obesity were mainly based on the absence of either metabolic syndrome or insulin resistance, but some individuals with obesity but without metabolic disease still have increased risks of CVD mortality and total mortality.
To develop a more precise definition of metabolically healthy obesity, the researchers analyzed data from 12,341 individuals in the United States who participated in NHANES-III, conducted between 1988 and 1994. The individuals were a mean age of 42 and 51% were women, and they were followed for an average of 14.5 years.
The researchers validated this definition using data from 374,079 individuals in the population-based UK Biobank cohort who were assessed in 2006 to 2010. Those individuals were a mean age of 56 and 55% were women, and they were followed for a mean of 7.8 years.
The combination of systolic blood pressure and waist-to-hip ratio had the strongest association with CVD mortality and total mortality, and the prevalence of type 2 diabetes was also associated with greater risk.
Regardless of BMI, all groups of metabolically unhealthy individuals had increased risks of CVD mortality and total mortality.
The study and some of the researchers were supported by grants from the German Federal Ministry of Education and Research.
A version of this article first appeared on Medscape.com.
Carbon monoxide diffusion with COPD declines more in women
Single breath diffusion capacity for carbon monoxide shows greater decline over time in COPD patients compared with controls, but declines significantly more in women compared with men, according to data from 602 adults with a history of smoking.
In previous studies, diffusion capacity for carbon monoxide (DLco) has been associated with decreased exercise capacity and poor health status in patients with COPD, but its association as a measure of disease progression has not been well studied, wrote Ciro Casanova, MD, of Hospital Universitario La Candelaria, Spain, and colleagues.
In a study published in the journal CHEST®, the researchers identified 506 adult smokers with COPD and 96 adult smoker controls without COPD. Lung function based on single breath DLco was measured each year for 5 years. The study population was part of the COPH History Assessment in SpaiN (CHAIN), an ongoing observational study of adults with COPD. COPD was defined as a history of at least 10 pack-years of smoking and a post-bronchodilator FEV1/FVC greater than 0.7 after 400 micrograms of albuterol, the researchers said.
During the 5-year period, the average overall annual decline in DLco was 1.34% in COPD patients, compared with .04% in non-COPD controls (P = .004). Among COPD patients, age, body mass index, FEV1%, and active smoking were not associated with longitudinal change in DLco values, the researchers said.
Notably, women with COPD at baseline had lower baseline DLco values compared with men (11.37%) and a significantly steeper decline in DLco (.89%) compared with men (P = .039). “Being a woman was the only factor that related to the annual rate of change in DLco,” the researchers said.
In a subgroup analysis, the researchers identified 305 COPD patients and 69 non-COPD controls who had at least 3 DLco measurements over the 5-year study period. In this group, 16.4% patients with COPD and 4.3% smokers without COPD showed significant yearly declines in DLco of –4.139% and –4.440%, respectively. Among COPD patients, significantly more women than men showed significant DLco declines (26% vs. 14%, P = .005). No significant differences were observed in mortality or hospitalizations per patient-year for COPD patients with and without DLco decline, the researchers said.
The study findings were limited by several factors including the lack of annual measurements of DLco among some patients, potential variability in the instruments used to measure DLco, and the absence of computerized tomography data for the chest, the researchers noted. However, the results support the value of the test for COPD progression when conducted at 3- to 4-year intervals, given the slow pace of the decline, they said. More research is needed, but “women seem to have a different susceptibility to cigarette smoke in the alveolar or pulmonary vascular domains,” they added.
DLco remains a valuable marker
The study is important because the usual longitudinal decline of diffusion capacity, an important physiological parameter in patients with COPD, was unknown, Juan P. de Torres, MD, of Queen’s University, Kingston, Ont., said in an interview.
“The finding of a different longitudinal decline of DLco in women was a surprise,” said Dr. de Torres, who was a coauthor on the study. “We knew from previous works from our group that COPD has a different clinical and prognostic behavior in women with COPD, but this specific finding is novel and important,” he said.
“These results provide information about the testing frequency (3-4 years) needed to use DLco as a marker of COPD progression in clinical practice,” Dr. de Torres added.
“What is the driving cause of this sex difference is unknown. We speculate that different causes of low DLco in COPD such as degree of emphysema, interstitial lung abnormalities, and pulmonary hypertension, may have a different prevalence and progression in women with COPD,” he said.
Looking ahead, “Large studies including an adequate sample of women with COPD is urgently needed because they will be the main face of COPD in the near future,” said Dr. de Torres. “Sex difference in their physiological characteristics, the reason to explain those differences and how they behave longitudinally is also urgently needed,” he added.
The study was supported in part by AstraZeneca and by the COPD research program of the Spanish Respiratory Society. The researchers and Dr. de Torres had no financial conflicts to disclose.
Single breath diffusion capacity for carbon monoxide shows greater decline over time in COPD patients compared with controls, but declines significantly more in women compared with men, according to data from 602 adults with a history of smoking.
In previous studies, diffusion capacity for carbon monoxide (DLco) has been associated with decreased exercise capacity and poor health status in patients with COPD, but its association as a measure of disease progression has not been well studied, wrote Ciro Casanova, MD, of Hospital Universitario La Candelaria, Spain, and colleagues.
In a study published in the journal CHEST®, the researchers identified 506 adult smokers with COPD and 96 adult smoker controls without COPD. Lung function based on single breath DLco was measured each year for 5 years. The study population was part of the COPH History Assessment in SpaiN (CHAIN), an ongoing observational study of adults with COPD. COPD was defined as a history of at least 10 pack-years of smoking and a post-bronchodilator FEV1/FVC greater than 0.7 after 400 micrograms of albuterol, the researchers said.
During the 5-year period, the average overall annual decline in DLco was 1.34% in COPD patients, compared with .04% in non-COPD controls (P = .004). Among COPD patients, age, body mass index, FEV1%, and active smoking were not associated with longitudinal change in DLco values, the researchers said.
Notably, women with COPD at baseline had lower baseline DLco values compared with men (11.37%) and a significantly steeper decline in DLco (.89%) compared with men (P = .039). “Being a woman was the only factor that related to the annual rate of change in DLco,” the researchers said.
In a subgroup analysis, the researchers identified 305 COPD patients and 69 non-COPD controls who had at least 3 DLco measurements over the 5-year study period. In this group, 16.4% patients with COPD and 4.3% smokers without COPD showed significant yearly declines in DLco of –4.139% and –4.440%, respectively. Among COPD patients, significantly more women than men showed significant DLco declines (26% vs. 14%, P = .005). No significant differences were observed in mortality or hospitalizations per patient-year for COPD patients with and without DLco decline, the researchers said.
The study findings were limited by several factors including the lack of annual measurements of DLco among some patients, potential variability in the instruments used to measure DLco, and the absence of computerized tomography data for the chest, the researchers noted. However, the results support the value of the test for COPD progression when conducted at 3- to 4-year intervals, given the slow pace of the decline, they said. More research is needed, but “women seem to have a different susceptibility to cigarette smoke in the alveolar or pulmonary vascular domains,” they added.
DLco remains a valuable marker
The study is important because the usual longitudinal decline of diffusion capacity, an important physiological parameter in patients with COPD, was unknown, Juan P. de Torres, MD, of Queen’s University, Kingston, Ont., said in an interview.
“The finding of a different longitudinal decline of DLco in women was a surprise,” said Dr. de Torres, who was a coauthor on the study. “We knew from previous works from our group that COPD has a different clinical and prognostic behavior in women with COPD, but this specific finding is novel and important,” he said.
“These results provide information about the testing frequency (3-4 years) needed to use DLco as a marker of COPD progression in clinical practice,” Dr. de Torres added.
“What is the driving cause of this sex difference is unknown. We speculate that different causes of low DLco in COPD such as degree of emphysema, interstitial lung abnormalities, and pulmonary hypertension, may have a different prevalence and progression in women with COPD,” he said.
Looking ahead, “Large studies including an adequate sample of women with COPD is urgently needed because they will be the main face of COPD in the near future,” said Dr. de Torres. “Sex difference in their physiological characteristics, the reason to explain those differences and how they behave longitudinally is also urgently needed,” he added.
The study was supported in part by AstraZeneca and by the COPD research program of the Spanish Respiratory Society. The researchers and Dr. de Torres had no financial conflicts to disclose.
Single breath diffusion capacity for carbon monoxide shows greater decline over time in COPD patients compared with controls, but declines significantly more in women compared with men, according to data from 602 adults with a history of smoking.
In previous studies, diffusion capacity for carbon monoxide (DLco) has been associated with decreased exercise capacity and poor health status in patients with COPD, but its association as a measure of disease progression has not been well studied, wrote Ciro Casanova, MD, of Hospital Universitario La Candelaria, Spain, and colleagues.
In a study published in the journal CHEST®, the researchers identified 506 adult smokers with COPD and 96 adult smoker controls without COPD. Lung function based on single breath DLco was measured each year for 5 years. The study population was part of the COPH History Assessment in SpaiN (CHAIN), an ongoing observational study of adults with COPD. COPD was defined as a history of at least 10 pack-years of smoking and a post-bronchodilator FEV1/FVC greater than 0.7 after 400 micrograms of albuterol, the researchers said.
During the 5-year period, the average overall annual decline in DLco was 1.34% in COPD patients, compared with .04% in non-COPD controls (P = .004). Among COPD patients, age, body mass index, FEV1%, and active smoking were not associated with longitudinal change in DLco values, the researchers said.
Notably, women with COPD at baseline had lower baseline DLco values compared with men (11.37%) and a significantly steeper decline in DLco (.89%) compared with men (P = .039). “Being a woman was the only factor that related to the annual rate of change in DLco,” the researchers said.
In a subgroup analysis, the researchers identified 305 COPD patients and 69 non-COPD controls who had at least 3 DLco measurements over the 5-year study period. In this group, 16.4% patients with COPD and 4.3% smokers without COPD showed significant yearly declines in DLco of –4.139% and –4.440%, respectively. Among COPD patients, significantly more women than men showed significant DLco declines (26% vs. 14%, P = .005). No significant differences were observed in mortality or hospitalizations per patient-year for COPD patients with and without DLco decline, the researchers said.
The study findings were limited by several factors including the lack of annual measurements of DLco among some patients, potential variability in the instruments used to measure DLco, and the absence of computerized tomography data for the chest, the researchers noted. However, the results support the value of the test for COPD progression when conducted at 3- to 4-year intervals, given the slow pace of the decline, they said. More research is needed, but “women seem to have a different susceptibility to cigarette smoke in the alveolar or pulmonary vascular domains,” they added.
DLco remains a valuable marker
The study is important because the usual longitudinal decline of diffusion capacity, an important physiological parameter in patients with COPD, was unknown, Juan P. de Torres, MD, of Queen’s University, Kingston, Ont., said in an interview.
“The finding of a different longitudinal decline of DLco in women was a surprise,” said Dr. de Torres, who was a coauthor on the study. “We knew from previous works from our group that COPD has a different clinical and prognostic behavior in women with COPD, but this specific finding is novel and important,” he said.
“These results provide information about the testing frequency (3-4 years) needed to use DLco as a marker of COPD progression in clinical practice,” Dr. de Torres added.
“What is the driving cause of this sex difference is unknown. We speculate that different causes of low DLco in COPD such as degree of emphysema, interstitial lung abnormalities, and pulmonary hypertension, may have a different prevalence and progression in women with COPD,” he said.
Looking ahead, “Large studies including an adequate sample of women with COPD is urgently needed because they will be the main face of COPD in the near future,” said Dr. de Torres. “Sex difference in their physiological characteristics, the reason to explain those differences and how they behave longitudinally is also urgently needed,” he added.
The study was supported in part by AstraZeneca and by the COPD research program of the Spanish Respiratory Society. The researchers and Dr. de Torres had no financial conflicts to disclose.
FROM CHEST
Novel hedgehog inhibitor strategies improve BCC outcomes
MD, a Mohs surgeon and chair of the department of dermatology at the Cleveland Clinic.
She and her colleagues have noticed an accelerated and durable response to hedgehog inhibitors after debulking and are studying cell signaling before and after debulking to better understand the issue.
Dr. Vidimos shared a remarkable case to illustrate the point during a clinical pearls talk at the annual meeting of the American College of Mohs Surgery.
An 82-year-old woman presented with a crusted, hemorrhagic, nodular basal cell carcinoma (BCC) that had overgrown over nearly her entire nose and left lower eyelid. A recurrence of a previous BCC, the tumor had been growing for a decade and had invaded her nasal bones but not the periorbital tissue.
An outside surgeon suggested a full rhinectomy and removal of the lower eyelid, but the woman refused.
Dr. Vidimos decided to treat her with vismodegib, but prior to doing so, she debulked the tumor to help with the pain and bleeding. She did not curette the portion of tumor extending through the ala into the nasal vestibule. “I let the vismodegib take care of that,” she said.
After 9 months, the tumor was virtually gone, with no recurrence after 3 years. Surgical debulking prior to hedgehog inhibition “reduces the tumor burden and may increase the efficacy and shorten the course of therapy,” Dr. Vidimos said.
The hedgehog inhibitors vismodegib (Erivedge) and sonidegib Odomzo are both approved for treating locally advanced BCC, with a complete response of 31% of locally advanced disease with vismodegib, according to one report.
But monotherapy is limited by intolerable side effects, most commonly muscle spasms, alopecia, and dysgeusia. To minimize the impact, Dr. Vidimos generally puts patients on treatment with Monday through Friday dosing and gives them the weekends off, a schedule she and her colleagues have reported works as well as daily dosing.
Still, many patients discontinue the drugs because of the side effects. Hedgehog inhibitors are also expensive and responses aren’t always durable. To increase efficacy and shorten the course of therapy, “we need alternative treatment strategies,” Dr. Vidimos said.
Up-front tumor debulking is one such strategy. Altered cell signaling pathways associated with tissue remodeling might improve response, and debulking may reduce the genetic heterogeneity of tumor cells, rendering remaining cells less resistant to hedgehog inhibition, she explained.
“It is exciting to see how tumor debulking may reduce tumor burden and heterogeneity, and thus lead to a durable response in extensive tumors,” said Vishal Patel, MD, assistant professor of dermatology and director of the cutaneous oncology program at George Washington University, Washington, who heard the presentation. “More investigation is needed to reproduce these results, but this approach may lead to improved outcomes with targeted therapies,” he said in an interview.
Combination therapy with other agents is another option, and there also seems to be a synergistic effect with radiation, with hedgehog inhibitors increasing cellular response to radiation therapy, Dr. Vidimos said.
Hedgehog inhibitors can also be used to shrink tumors before surgery. One small series found a 27% decrease in the area of the tumor after 3 to 6 months of preoperative vismodegib.
Dr. Vidimos shared another case to illustrate the point.
A 64-year-old woman fainted and presented to the ED with a hemoglobin of 3.2 mg/dL because of chronic blood loss from an ulcerated BCC on her upper back. The lesion measured 25 cm by 9 cm, and was 3.5 cm deep with no bone involvement. The woman was addicted to opioids by the time she presented.
She was started on vismodegib; the ulcer shrunk considerably after 6 months, and the woman underwent a resection. Only one small focus of BCC was found across 78 specimens submitted to Dr. Vidimos for Mohs reading.
Resection was followed by a muscle flap repair and radiation. At 5 and a half years, there is no evidence of disease; the only sign that the lesion had been there was a scar running along the woman’s upper spine.
The approach “was very successful for a very aggressive and worrisome tumor,” Dr. Vidimos said.
Dr. Vidimos did not have any relevant disclosures. Dr. Patel had no relevant disclosures.
MD, a Mohs surgeon and chair of the department of dermatology at the Cleveland Clinic.
She and her colleagues have noticed an accelerated and durable response to hedgehog inhibitors after debulking and are studying cell signaling before and after debulking to better understand the issue.
Dr. Vidimos shared a remarkable case to illustrate the point during a clinical pearls talk at the annual meeting of the American College of Mohs Surgery.
An 82-year-old woman presented with a crusted, hemorrhagic, nodular basal cell carcinoma (BCC) that had overgrown over nearly her entire nose and left lower eyelid. A recurrence of a previous BCC, the tumor had been growing for a decade and had invaded her nasal bones but not the periorbital tissue.
An outside surgeon suggested a full rhinectomy and removal of the lower eyelid, but the woman refused.
Dr. Vidimos decided to treat her with vismodegib, but prior to doing so, she debulked the tumor to help with the pain and bleeding. She did not curette the portion of tumor extending through the ala into the nasal vestibule. “I let the vismodegib take care of that,” she said.
After 9 months, the tumor was virtually gone, with no recurrence after 3 years. Surgical debulking prior to hedgehog inhibition “reduces the tumor burden and may increase the efficacy and shorten the course of therapy,” Dr. Vidimos said.
The hedgehog inhibitors vismodegib (Erivedge) and sonidegib Odomzo are both approved for treating locally advanced BCC, with a complete response of 31% of locally advanced disease with vismodegib, according to one report.
But monotherapy is limited by intolerable side effects, most commonly muscle spasms, alopecia, and dysgeusia. To minimize the impact, Dr. Vidimos generally puts patients on treatment with Monday through Friday dosing and gives them the weekends off, a schedule she and her colleagues have reported works as well as daily dosing.
Still, many patients discontinue the drugs because of the side effects. Hedgehog inhibitors are also expensive and responses aren’t always durable. To increase efficacy and shorten the course of therapy, “we need alternative treatment strategies,” Dr. Vidimos said.
Up-front tumor debulking is one such strategy. Altered cell signaling pathways associated with tissue remodeling might improve response, and debulking may reduce the genetic heterogeneity of tumor cells, rendering remaining cells less resistant to hedgehog inhibition, she explained.
“It is exciting to see how tumor debulking may reduce tumor burden and heterogeneity, and thus lead to a durable response in extensive tumors,” said Vishal Patel, MD, assistant professor of dermatology and director of the cutaneous oncology program at George Washington University, Washington, who heard the presentation. “More investigation is needed to reproduce these results, but this approach may lead to improved outcomes with targeted therapies,” he said in an interview.
Combination therapy with other agents is another option, and there also seems to be a synergistic effect with radiation, with hedgehog inhibitors increasing cellular response to radiation therapy, Dr. Vidimos said.
Hedgehog inhibitors can also be used to shrink tumors before surgery. One small series found a 27% decrease in the area of the tumor after 3 to 6 months of preoperative vismodegib.
Dr. Vidimos shared another case to illustrate the point.
A 64-year-old woman fainted and presented to the ED with a hemoglobin of 3.2 mg/dL because of chronic blood loss from an ulcerated BCC on her upper back. The lesion measured 25 cm by 9 cm, and was 3.5 cm deep with no bone involvement. The woman was addicted to opioids by the time she presented.
She was started on vismodegib; the ulcer shrunk considerably after 6 months, and the woman underwent a resection. Only one small focus of BCC was found across 78 specimens submitted to Dr. Vidimos for Mohs reading.
Resection was followed by a muscle flap repair and radiation. At 5 and a half years, there is no evidence of disease; the only sign that the lesion had been there was a scar running along the woman’s upper spine.
The approach “was very successful for a very aggressive and worrisome tumor,” Dr. Vidimos said.
Dr. Vidimos did not have any relevant disclosures. Dr. Patel had no relevant disclosures.
MD, a Mohs surgeon and chair of the department of dermatology at the Cleveland Clinic.
She and her colleagues have noticed an accelerated and durable response to hedgehog inhibitors after debulking and are studying cell signaling before and after debulking to better understand the issue.
Dr. Vidimos shared a remarkable case to illustrate the point during a clinical pearls talk at the annual meeting of the American College of Mohs Surgery.
An 82-year-old woman presented with a crusted, hemorrhagic, nodular basal cell carcinoma (BCC) that had overgrown over nearly her entire nose and left lower eyelid. A recurrence of a previous BCC, the tumor had been growing for a decade and had invaded her nasal bones but not the periorbital tissue.
An outside surgeon suggested a full rhinectomy and removal of the lower eyelid, but the woman refused.
Dr. Vidimos decided to treat her with vismodegib, but prior to doing so, she debulked the tumor to help with the pain and bleeding. She did not curette the portion of tumor extending through the ala into the nasal vestibule. “I let the vismodegib take care of that,” she said.
After 9 months, the tumor was virtually gone, with no recurrence after 3 years. Surgical debulking prior to hedgehog inhibition “reduces the tumor burden and may increase the efficacy and shorten the course of therapy,” Dr. Vidimos said.
The hedgehog inhibitors vismodegib (Erivedge) and sonidegib Odomzo are both approved for treating locally advanced BCC, with a complete response of 31% of locally advanced disease with vismodegib, according to one report.
But monotherapy is limited by intolerable side effects, most commonly muscle spasms, alopecia, and dysgeusia. To minimize the impact, Dr. Vidimos generally puts patients on treatment with Monday through Friday dosing and gives them the weekends off, a schedule she and her colleagues have reported works as well as daily dosing.
Still, many patients discontinue the drugs because of the side effects. Hedgehog inhibitors are also expensive and responses aren’t always durable. To increase efficacy and shorten the course of therapy, “we need alternative treatment strategies,” Dr. Vidimos said.
Up-front tumor debulking is one such strategy. Altered cell signaling pathways associated with tissue remodeling might improve response, and debulking may reduce the genetic heterogeneity of tumor cells, rendering remaining cells less resistant to hedgehog inhibition, she explained.
“It is exciting to see how tumor debulking may reduce tumor burden and heterogeneity, and thus lead to a durable response in extensive tumors,” said Vishal Patel, MD, assistant professor of dermatology and director of the cutaneous oncology program at George Washington University, Washington, who heard the presentation. “More investigation is needed to reproduce these results, but this approach may lead to improved outcomes with targeted therapies,” he said in an interview.
Combination therapy with other agents is another option, and there also seems to be a synergistic effect with radiation, with hedgehog inhibitors increasing cellular response to radiation therapy, Dr. Vidimos said.
Hedgehog inhibitors can also be used to shrink tumors before surgery. One small series found a 27% decrease in the area of the tumor after 3 to 6 months of preoperative vismodegib.
Dr. Vidimos shared another case to illustrate the point.
A 64-year-old woman fainted and presented to the ED with a hemoglobin of 3.2 mg/dL because of chronic blood loss from an ulcerated BCC on her upper back. The lesion measured 25 cm by 9 cm, and was 3.5 cm deep with no bone involvement. The woman was addicted to opioids by the time she presented.
She was started on vismodegib; the ulcer shrunk considerably after 6 months, and the woman underwent a resection. Only one small focus of BCC was found across 78 specimens submitted to Dr. Vidimos for Mohs reading.
Resection was followed by a muscle flap repair and radiation. At 5 and a half years, there is no evidence of disease; the only sign that the lesion had been there was a scar running along the woman’s upper spine.
The approach “was very successful for a very aggressive and worrisome tumor,” Dr. Vidimos said.
Dr. Vidimos did not have any relevant disclosures. Dr. Patel had no relevant disclosures.
FROM THE ACMS ANNUAL MEETING
New digital ADHD intervention tools are emerging
New digital tools are on the horizon to help patients with attention-deficit/hyperactivity disorder (ADHD) manage the condition.
Speakers at the World Congress on ADHD – Virtual Event described innovations aimed at improving medication compliance or reducing symptoms through the use of smartphone technology such as apps and text messaging, and video games. Some of these technologies have shown promising results in clinical trials, but the experts called for additional studies to further vet their efficacy.
Digital technologies have limitations and should be seen as adjunctive rather than standalone tools that can aid clinicians and educators, said Hannah Kirk, PhD, a psychology research fellow at Monash University’s Turner Institute for Brain and Mental Health in Clayton, Australia. Dr. Kirk joined three other speakers for the session: “ADHD in the digital age – From pitfalls to challenges.”
An explosion in technology
ADHD, the most common neurodevelopmental disorder, has global prevalence rates ranging from 5% to 7%, said Dr. Kirk. Digital technology and digital health “have been heralded as having enormous potential to improve early access and to improve the increasing demand in child support services,” she said.
The world has seen an explosion of digital technology innovation in the last decade, spurred on most recently by the COVID-19 pandemic. New demand exists for tools in educational and health care settings to provide information and support through websites, apps, SMS, video conferencing, and wearable devices, Dr. Kirk said.
Looking at the landscape of ADHD digital therapeutics, “there are probably tens of thousands of apps and other digital products to treat and manage conditions across the spectrum,” said Scott H. Kollins, PhD, MS, a clinical psychologist at Duke Health’s ADHD Clinic in Durham, N.C.
In general, few developers of these products have conducted rigorous, well-controlled trials, he noted.
Video game interventions
AKL-T01, a tool that pairs continuous fine motor tasks and perceptual reaction time tasks, went through several rounds of clinical trials to achieve federal approval as a digital therapeutic.
“This not just another video game,” said Dr. Kollins, who helped developed it. The tool’s adaptive algorithms adjust and monitor task difficulty based on performance, using a video game format and rewards to engage users.
Two phase 3 trials provided the basis for the Food and Drug Administration’s approval of AKL-T01, also known as EndeavorRx, in 2020. The first trial, published in The Lancet, randomized 348 children 1:1 to receive either the AKL-T01 treatment or a controlled intervention, which was a word game. Participating children aged 8-12 with a confirmed ADHD diagnosis were asked to play the game for about 25 minutes a day, 5 days a week over 4 weeks. The study excluded children who were taking medicine.
The researchers reported statistically significant improvements in attentional functioning in the AKL-T01 group as rated by test of variables of attention. The trial reported no serious adverse events, although one child in the AKL-T01 group withdrew from the study.
“As kids go through this treatment, it’s challenging and the difficulty levels increase, so it’s not surprising that kids get frustrated with that, or have emotional outbursts,” Dr. Kollins said. Those reactions suggest that the intervention was working, he added.
A follow-up study, published in npj Digital Medicine, broadened the scope. That study included children who had taken medication and extended the study period. Overall, 206 children aged 8-14 (130 on stimulants and 76 on no medication) played the game for 28 days, taking a pause for another 28 days, then reinitiating the treatment.
As in the first trial, AKL-T01 significantly improved ADHD-related impairment, a metric that continued to improve in the second round of treatment. Looking at secondary outcomes, the proportion of children deemed as clinical responders on the Impairment Rating Scale, 68.3% of all of the participants were responders by the end of the study on the ADHD ratings scale, meaning there was a greater than 30% improvement in symptoms. Upward of 50% of participants at the end of the second round of treatment showed substantial improvement in their ADHD ratings scale scores.
“This was really a substantial move ... the first-ever app-based video game approved by the FDA,” noted Dr. Kollins, who is affiliated with the Duke Clinical Research Institute. Some skeptics have called this a marketing ploy or have questioned the integrity of the FDA approval process.
“I would submit and argue that the rigor of the trial speaks for itself,” he said. “But it’s not surprising that there’s skepticism in the clinical community about something like this – a brand new treatment modality.”
In her own research, Dr. Kirk has studied game-based interventions aimed at assessing ADHD and improving cognitive training. In 2018, her team developed a touch screen game–based intervention for early evaluation of attention skills, using six activities. In a visual search task, children were asked to locate red lobsters on a screen that showed a variety of underwater creatures. In another selection attention task, children were asked to scan the screen for a particular target, such as a yellow star, and to indicate whether that target was absent or present on the screen. Other tasks assessed for sustained attention abilities and information processing speed.
She and her colleagues recruited 340 children aged 4-7 years to evaluate whether the tool produced consistent results over time, and compared favorably to existing measures of attention. None of the participants had been diagnosed with ADHD. To assess reliability, a subset of children completed another assessment 2 weeks after the first one. The study showed varying results according to activity. The visual search task had high test-retest reliability and the strongest validity, compared with the other tasks. The sustained attention tasks exhibited the weakest validity.
The next steps are to assess whether this tool is sensitive enough to detect differences between children with or without clinical attention difficulties such as ADHD, Dr. Kirk said.
Apps improve adherence
As some technologies focus on reducing symptoms through games, others seek to improve medication compliance through SMS and smartphone apps.
Studies have shown that medication can decrease incidence of smoking, mood disorders, traumatic brain injuries, car crashes, and educational outcomes. However, risk decreases only if compliance is good, said Joseph Biederman, MD. Right now, “there’s extremely poor adherence to stimulant medications in ADHD” across the world, said Dr. Biederman, chief of clinical and research programs in pediatric psychopharmacology and adult ADHD at Massachusetts General Hospital in Boston.
“This is a problem that’s driven by ADHD itself,” he continued. Prescribers don’t always have the time to educate the patient on medications, deal with misconceptions, or provide support for management of daily activities.
Text reminders may offer a solution. Partnering with a Canadian technology company, MEMOTEXT, Dr. Biederman and colleagues at Massachusetts General Hospital developed an SMS-based disease management intervention for ADHD.
The tool aims to manage work, home life, and social relationships by supporting the timely renewal of medications. It doesn’t just remind people to take their ADHD medication, it reminds them to take any other medication they need, and provides the reasons why it’s important to take these drugs. Through interactive questions, it also assesses the progress and knowledge of patients and families about ADHD.
Testing this app in pediatric settings, Dr. Biederman and colleagues published a study in the Journal of Psychopharmacology showing a dramatic increase in compliance – from 60% to 90%.
In another study, this one published in the Journal of Clinical Psychopharmacology, Dr. Biederman and colleagues found that compliance improved, from 35% to 70% in adults. The SMS program in these settings not only improved adherence, but it also reduced costs of ADHD-associated complications while adding beneficial support and value to patients, families, and prescribers, Dr. Biederman said.
Promising findings about the power of apps to increase ADHD medication adherence led Luis Augusto Rohde, MD, PhD, and colleagues to develop the FOCUS app in 2016, for use in his home country of Brazil. The app objectively monitors symptoms of ADHD and establishes cooperative relationships between the patient, their families, and caregivers, said Dr. Rohde, professor of child and adolescent psychiatry at the Federal University of Rio Grande do Sul’s department of psychiatry, Porto Alegre, Brazil.
FOCUS works through collaboration. Anyone involved in the patient’s care: teachers, family members, and health care professionals, can download the app. Through this shared connection with the patient, they can participate in weekly assessments of symptoms and adverse events. A task manager sends medication reminders to the patient, who can select activities to help monitor daily performance and customize rewards.
All of those features “make it much easier to plan and individualize treatments and discuss compliance and issues with the patient,” Dr. Rohde said.
FOCUS traffic ranges from 1,200 to 1,500 active users each week, offering a wealth of data to mine on compliance, behavior, and adverse events. An upcoming randomized clinical trial in three groups of patients will further explore FOCUS’s ability to increase adherence to treatment, Dr. Rohde said.
Digital tech pros and cons
The accessibility of digital technology to children living in remote areas is one of its biggest assets, Dr. Kirk said.
Digital technologies capture real time data, are easy to use, are suitable for young children with developmental disorders, have few adverse effects, and can be easily updated. However, there are some limitations, she added. Attitudes toward technology, time required to supervise their use, and funding to facilitate the use of such technology can hinder implementation. Given that digital technology is increasingly being used to collect sensitive medical data and assess clinical conditions, it’s crucial for these new technologies to be compliant with HIPAA requirements, Dr. Kirk said.
Developers need to be thoughtful and deliberate in how they design clinical evidence strategies for digital therapeutics for ADHD.
“There’s much work that needs to be done from a clinical, statistical, regulatory, and policy perspective, but this journey illustrates this can be done with ADHD and other mental health conditions.”
Dr. Kirk disclosed working previously for a small technology company in Melbourne that developed medical technologies for children. Dr. Kollins’ work has been supported by numerous U.S. agencies, including the National Institute of Mental Health. He has served as a consultant to numerous pharmaceutical companies tied to ADHD clinical psychopharmacology. Dr. Biederman has provided research support to Genentech, Headspace, Pfizer, Roche Translational & Clinical Research Center, and other pharmaceutical companies. Also, Dr. Biederman has a partnership with MEMOTEXT through Partners Healthcare Innovation. Dr. Rohde has received grant or research support from, and served as a consultant to, several companies, including Bial, Novartis, Pfizer, and Shire/Takeda. He has received authorship royalties from Oxford University Press and ArtMed, and travel grants from Shire.
New digital tools are on the horizon to help patients with attention-deficit/hyperactivity disorder (ADHD) manage the condition.
Speakers at the World Congress on ADHD – Virtual Event described innovations aimed at improving medication compliance or reducing symptoms through the use of smartphone technology such as apps and text messaging, and video games. Some of these technologies have shown promising results in clinical trials, but the experts called for additional studies to further vet their efficacy.
Digital technologies have limitations and should be seen as adjunctive rather than standalone tools that can aid clinicians and educators, said Hannah Kirk, PhD, a psychology research fellow at Monash University’s Turner Institute for Brain and Mental Health in Clayton, Australia. Dr. Kirk joined three other speakers for the session: “ADHD in the digital age – From pitfalls to challenges.”
An explosion in technology
ADHD, the most common neurodevelopmental disorder, has global prevalence rates ranging from 5% to 7%, said Dr. Kirk. Digital technology and digital health “have been heralded as having enormous potential to improve early access and to improve the increasing demand in child support services,” she said.
The world has seen an explosion of digital technology innovation in the last decade, spurred on most recently by the COVID-19 pandemic. New demand exists for tools in educational and health care settings to provide information and support through websites, apps, SMS, video conferencing, and wearable devices, Dr. Kirk said.
Looking at the landscape of ADHD digital therapeutics, “there are probably tens of thousands of apps and other digital products to treat and manage conditions across the spectrum,” said Scott H. Kollins, PhD, MS, a clinical psychologist at Duke Health’s ADHD Clinic in Durham, N.C.
In general, few developers of these products have conducted rigorous, well-controlled trials, he noted.
Video game interventions
AKL-T01, a tool that pairs continuous fine motor tasks and perceptual reaction time tasks, went through several rounds of clinical trials to achieve federal approval as a digital therapeutic.
“This not just another video game,” said Dr. Kollins, who helped developed it. The tool’s adaptive algorithms adjust and monitor task difficulty based on performance, using a video game format and rewards to engage users.
Two phase 3 trials provided the basis for the Food and Drug Administration’s approval of AKL-T01, also known as EndeavorRx, in 2020. The first trial, published in The Lancet, randomized 348 children 1:1 to receive either the AKL-T01 treatment or a controlled intervention, which was a word game. Participating children aged 8-12 with a confirmed ADHD diagnosis were asked to play the game for about 25 minutes a day, 5 days a week over 4 weeks. The study excluded children who were taking medicine.
The researchers reported statistically significant improvements in attentional functioning in the AKL-T01 group as rated by test of variables of attention. The trial reported no serious adverse events, although one child in the AKL-T01 group withdrew from the study.
“As kids go through this treatment, it’s challenging and the difficulty levels increase, so it’s not surprising that kids get frustrated with that, or have emotional outbursts,” Dr. Kollins said. Those reactions suggest that the intervention was working, he added.
A follow-up study, published in npj Digital Medicine, broadened the scope. That study included children who had taken medication and extended the study period. Overall, 206 children aged 8-14 (130 on stimulants and 76 on no medication) played the game for 28 days, taking a pause for another 28 days, then reinitiating the treatment.
As in the first trial, AKL-T01 significantly improved ADHD-related impairment, a metric that continued to improve in the second round of treatment. Looking at secondary outcomes, the proportion of children deemed as clinical responders on the Impairment Rating Scale, 68.3% of all of the participants were responders by the end of the study on the ADHD ratings scale, meaning there was a greater than 30% improvement in symptoms. Upward of 50% of participants at the end of the second round of treatment showed substantial improvement in their ADHD ratings scale scores.
“This was really a substantial move ... the first-ever app-based video game approved by the FDA,” noted Dr. Kollins, who is affiliated with the Duke Clinical Research Institute. Some skeptics have called this a marketing ploy or have questioned the integrity of the FDA approval process.
“I would submit and argue that the rigor of the trial speaks for itself,” he said. “But it’s not surprising that there’s skepticism in the clinical community about something like this – a brand new treatment modality.”
In her own research, Dr. Kirk has studied game-based interventions aimed at assessing ADHD and improving cognitive training. In 2018, her team developed a touch screen game–based intervention for early evaluation of attention skills, using six activities. In a visual search task, children were asked to locate red lobsters on a screen that showed a variety of underwater creatures. In another selection attention task, children were asked to scan the screen for a particular target, such as a yellow star, and to indicate whether that target was absent or present on the screen. Other tasks assessed for sustained attention abilities and information processing speed.
She and her colleagues recruited 340 children aged 4-7 years to evaluate whether the tool produced consistent results over time, and compared favorably to existing measures of attention. None of the participants had been diagnosed with ADHD. To assess reliability, a subset of children completed another assessment 2 weeks after the first one. The study showed varying results according to activity. The visual search task had high test-retest reliability and the strongest validity, compared with the other tasks. The sustained attention tasks exhibited the weakest validity.
The next steps are to assess whether this tool is sensitive enough to detect differences between children with or without clinical attention difficulties such as ADHD, Dr. Kirk said.
Apps improve adherence
As some technologies focus on reducing symptoms through games, others seek to improve medication compliance through SMS and smartphone apps.
Studies have shown that medication can decrease incidence of smoking, mood disorders, traumatic brain injuries, car crashes, and educational outcomes. However, risk decreases only if compliance is good, said Joseph Biederman, MD. Right now, “there’s extremely poor adherence to stimulant medications in ADHD” across the world, said Dr. Biederman, chief of clinical and research programs in pediatric psychopharmacology and adult ADHD at Massachusetts General Hospital in Boston.
“This is a problem that’s driven by ADHD itself,” he continued. Prescribers don’t always have the time to educate the patient on medications, deal with misconceptions, or provide support for management of daily activities.
Text reminders may offer a solution. Partnering with a Canadian technology company, MEMOTEXT, Dr. Biederman and colleagues at Massachusetts General Hospital developed an SMS-based disease management intervention for ADHD.
The tool aims to manage work, home life, and social relationships by supporting the timely renewal of medications. It doesn’t just remind people to take their ADHD medication, it reminds them to take any other medication they need, and provides the reasons why it’s important to take these drugs. Through interactive questions, it also assesses the progress and knowledge of patients and families about ADHD.
Testing this app in pediatric settings, Dr. Biederman and colleagues published a study in the Journal of Psychopharmacology showing a dramatic increase in compliance – from 60% to 90%.
In another study, this one published in the Journal of Clinical Psychopharmacology, Dr. Biederman and colleagues found that compliance improved, from 35% to 70% in adults. The SMS program in these settings not only improved adherence, but it also reduced costs of ADHD-associated complications while adding beneficial support and value to patients, families, and prescribers, Dr. Biederman said.
Promising findings about the power of apps to increase ADHD medication adherence led Luis Augusto Rohde, MD, PhD, and colleagues to develop the FOCUS app in 2016, for use in his home country of Brazil. The app objectively monitors symptoms of ADHD and establishes cooperative relationships between the patient, their families, and caregivers, said Dr. Rohde, professor of child and adolescent psychiatry at the Federal University of Rio Grande do Sul’s department of psychiatry, Porto Alegre, Brazil.
FOCUS works through collaboration. Anyone involved in the patient’s care: teachers, family members, and health care professionals, can download the app. Through this shared connection with the patient, they can participate in weekly assessments of symptoms and adverse events. A task manager sends medication reminders to the patient, who can select activities to help monitor daily performance and customize rewards.
All of those features “make it much easier to plan and individualize treatments and discuss compliance and issues with the patient,” Dr. Rohde said.
FOCUS traffic ranges from 1,200 to 1,500 active users each week, offering a wealth of data to mine on compliance, behavior, and adverse events. An upcoming randomized clinical trial in three groups of patients will further explore FOCUS’s ability to increase adherence to treatment, Dr. Rohde said.
Digital tech pros and cons
The accessibility of digital technology to children living in remote areas is one of its biggest assets, Dr. Kirk said.
Digital technologies capture real time data, are easy to use, are suitable for young children with developmental disorders, have few adverse effects, and can be easily updated. However, there are some limitations, she added. Attitudes toward technology, time required to supervise their use, and funding to facilitate the use of such technology can hinder implementation. Given that digital technology is increasingly being used to collect sensitive medical data and assess clinical conditions, it’s crucial for these new technologies to be compliant with HIPAA requirements, Dr. Kirk said.
Developers need to be thoughtful and deliberate in how they design clinical evidence strategies for digital therapeutics for ADHD.
“There’s much work that needs to be done from a clinical, statistical, regulatory, and policy perspective, but this journey illustrates this can be done with ADHD and other mental health conditions.”
Dr. Kirk disclosed working previously for a small technology company in Melbourne that developed medical technologies for children. Dr. Kollins’ work has been supported by numerous U.S. agencies, including the National Institute of Mental Health. He has served as a consultant to numerous pharmaceutical companies tied to ADHD clinical psychopharmacology. Dr. Biederman has provided research support to Genentech, Headspace, Pfizer, Roche Translational & Clinical Research Center, and other pharmaceutical companies. Also, Dr. Biederman has a partnership with MEMOTEXT through Partners Healthcare Innovation. Dr. Rohde has received grant or research support from, and served as a consultant to, several companies, including Bial, Novartis, Pfizer, and Shire/Takeda. He has received authorship royalties from Oxford University Press and ArtMed, and travel grants from Shire.
New digital tools are on the horizon to help patients with attention-deficit/hyperactivity disorder (ADHD) manage the condition.
Speakers at the World Congress on ADHD – Virtual Event described innovations aimed at improving medication compliance or reducing symptoms through the use of smartphone technology such as apps and text messaging, and video games. Some of these technologies have shown promising results in clinical trials, but the experts called for additional studies to further vet their efficacy.
Digital technologies have limitations and should be seen as adjunctive rather than standalone tools that can aid clinicians and educators, said Hannah Kirk, PhD, a psychology research fellow at Monash University’s Turner Institute for Brain and Mental Health in Clayton, Australia. Dr. Kirk joined three other speakers for the session: “ADHD in the digital age – From pitfalls to challenges.”
An explosion in technology
ADHD, the most common neurodevelopmental disorder, has global prevalence rates ranging from 5% to 7%, said Dr. Kirk. Digital technology and digital health “have been heralded as having enormous potential to improve early access and to improve the increasing demand in child support services,” she said.
The world has seen an explosion of digital technology innovation in the last decade, spurred on most recently by the COVID-19 pandemic. New demand exists for tools in educational and health care settings to provide information and support through websites, apps, SMS, video conferencing, and wearable devices, Dr. Kirk said.
Looking at the landscape of ADHD digital therapeutics, “there are probably tens of thousands of apps and other digital products to treat and manage conditions across the spectrum,” said Scott H. Kollins, PhD, MS, a clinical psychologist at Duke Health’s ADHD Clinic in Durham, N.C.
In general, few developers of these products have conducted rigorous, well-controlled trials, he noted.
Video game interventions
AKL-T01, a tool that pairs continuous fine motor tasks and perceptual reaction time tasks, went through several rounds of clinical trials to achieve federal approval as a digital therapeutic.
“This not just another video game,” said Dr. Kollins, who helped developed it. The tool’s adaptive algorithms adjust and monitor task difficulty based on performance, using a video game format and rewards to engage users.
Two phase 3 trials provided the basis for the Food and Drug Administration’s approval of AKL-T01, also known as EndeavorRx, in 2020. The first trial, published in The Lancet, randomized 348 children 1:1 to receive either the AKL-T01 treatment or a controlled intervention, which was a word game. Participating children aged 8-12 with a confirmed ADHD diagnosis were asked to play the game for about 25 minutes a day, 5 days a week over 4 weeks. The study excluded children who were taking medicine.
The researchers reported statistically significant improvements in attentional functioning in the AKL-T01 group as rated by test of variables of attention. The trial reported no serious adverse events, although one child in the AKL-T01 group withdrew from the study.
“As kids go through this treatment, it’s challenging and the difficulty levels increase, so it’s not surprising that kids get frustrated with that, or have emotional outbursts,” Dr. Kollins said. Those reactions suggest that the intervention was working, he added.
A follow-up study, published in npj Digital Medicine, broadened the scope. That study included children who had taken medication and extended the study period. Overall, 206 children aged 8-14 (130 on stimulants and 76 on no medication) played the game for 28 days, taking a pause for another 28 days, then reinitiating the treatment.
As in the first trial, AKL-T01 significantly improved ADHD-related impairment, a metric that continued to improve in the second round of treatment. Looking at secondary outcomes, the proportion of children deemed as clinical responders on the Impairment Rating Scale, 68.3% of all of the participants were responders by the end of the study on the ADHD ratings scale, meaning there was a greater than 30% improvement in symptoms. Upward of 50% of participants at the end of the second round of treatment showed substantial improvement in their ADHD ratings scale scores.
“This was really a substantial move ... the first-ever app-based video game approved by the FDA,” noted Dr. Kollins, who is affiliated with the Duke Clinical Research Institute. Some skeptics have called this a marketing ploy or have questioned the integrity of the FDA approval process.
“I would submit and argue that the rigor of the trial speaks for itself,” he said. “But it’s not surprising that there’s skepticism in the clinical community about something like this – a brand new treatment modality.”
In her own research, Dr. Kirk has studied game-based interventions aimed at assessing ADHD and improving cognitive training. In 2018, her team developed a touch screen game–based intervention for early evaluation of attention skills, using six activities. In a visual search task, children were asked to locate red lobsters on a screen that showed a variety of underwater creatures. In another selection attention task, children were asked to scan the screen for a particular target, such as a yellow star, and to indicate whether that target was absent or present on the screen. Other tasks assessed for sustained attention abilities and information processing speed.
She and her colleagues recruited 340 children aged 4-7 years to evaluate whether the tool produced consistent results over time, and compared favorably to existing measures of attention. None of the participants had been diagnosed with ADHD. To assess reliability, a subset of children completed another assessment 2 weeks after the first one. The study showed varying results according to activity. The visual search task had high test-retest reliability and the strongest validity, compared with the other tasks. The sustained attention tasks exhibited the weakest validity.
The next steps are to assess whether this tool is sensitive enough to detect differences between children with or without clinical attention difficulties such as ADHD, Dr. Kirk said.
Apps improve adherence
As some technologies focus on reducing symptoms through games, others seek to improve medication compliance through SMS and smartphone apps.
Studies have shown that medication can decrease incidence of smoking, mood disorders, traumatic brain injuries, car crashes, and educational outcomes. However, risk decreases only if compliance is good, said Joseph Biederman, MD. Right now, “there’s extremely poor adherence to stimulant medications in ADHD” across the world, said Dr. Biederman, chief of clinical and research programs in pediatric psychopharmacology and adult ADHD at Massachusetts General Hospital in Boston.
“This is a problem that’s driven by ADHD itself,” he continued. Prescribers don’t always have the time to educate the patient on medications, deal with misconceptions, or provide support for management of daily activities.
Text reminders may offer a solution. Partnering with a Canadian technology company, MEMOTEXT, Dr. Biederman and colleagues at Massachusetts General Hospital developed an SMS-based disease management intervention for ADHD.
The tool aims to manage work, home life, and social relationships by supporting the timely renewal of medications. It doesn’t just remind people to take their ADHD medication, it reminds them to take any other medication they need, and provides the reasons why it’s important to take these drugs. Through interactive questions, it also assesses the progress and knowledge of patients and families about ADHD.
Testing this app in pediatric settings, Dr. Biederman and colleagues published a study in the Journal of Psychopharmacology showing a dramatic increase in compliance – from 60% to 90%.
In another study, this one published in the Journal of Clinical Psychopharmacology, Dr. Biederman and colleagues found that compliance improved, from 35% to 70% in adults. The SMS program in these settings not only improved adherence, but it also reduced costs of ADHD-associated complications while adding beneficial support and value to patients, families, and prescribers, Dr. Biederman said.
Promising findings about the power of apps to increase ADHD medication adherence led Luis Augusto Rohde, MD, PhD, and colleagues to develop the FOCUS app in 2016, for use in his home country of Brazil. The app objectively monitors symptoms of ADHD and establishes cooperative relationships between the patient, their families, and caregivers, said Dr. Rohde, professor of child and adolescent psychiatry at the Federal University of Rio Grande do Sul’s department of psychiatry, Porto Alegre, Brazil.
FOCUS works through collaboration. Anyone involved in the patient’s care: teachers, family members, and health care professionals, can download the app. Through this shared connection with the patient, they can participate in weekly assessments of symptoms and adverse events. A task manager sends medication reminders to the patient, who can select activities to help monitor daily performance and customize rewards.
All of those features “make it much easier to plan and individualize treatments and discuss compliance and issues with the patient,” Dr. Rohde said.
FOCUS traffic ranges from 1,200 to 1,500 active users each week, offering a wealth of data to mine on compliance, behavior, and adverse events. An upcoming randomized clinical trial in three groups of patients will further explore FOCUS’s ability to increase adherence to treatment, Dr. Rohde said.
Digital tech pros and cons
The accessibility of digital technology to children living in remote areas is one of its biggest assets, Dr. Kirk said.
Digital technologies capture real time data, are easy to use, are suitable for young children with developmental disorders, have few adverse effects, and can be easily updated. However, there are some limitations, she added. Attitudes toward technology, time required to supervise their use, and funding to facilitate the use of such technology can hinder implementation. Given that digital technology is increasingly being used to collect sensitive medical data and assess clinical conditions, it’s crucial for these new technologies to be compliant with HIPAA requirements, Dr. Kirk said.
Developers need to be thoughtful and deliberate in how they design clinical evidence strategies for digital therapeutics for ADHD.
“There’s much work that needs to be done from a clinical, statistical, regulatory, and policy perspective, but this journey illustrates this can be done with ADHD and other mental health conditions.”
Dr. Kirk disclosed working previously for a small technology company in Melbourne that developed medical technologies for children. Dr. Kollins’ work has been supported by numerous U.S. agencies, including the National Institute of Mental Health. He has served as a consultant to numerous pharmaceutical companies tied to ADHD clinical psychopharmacology. Dr. Biederman has provided research support to Genentech, Headspace, Pfizer, Roche Translational & Clinical Research Center, and other pharmaceutical companies. Also, Dr. Biederman has a partnership with MEMOTEXT through Partners Healthcare Innovation. Dr. Rohde has received grant or research support from, and served as a consultant to, several companies, including Bial, Novartis, Pfizer, and Shire/Takeda. He has received authorship royalties from Oxford University Press and ArtMed, and travel grants from Shire.
FROM ADHD 2021
Once-nightly sodium oxybate agent effective in narcolepsy
REST-ON trial released earlier this year showed that the agent known as FT218 (Avadel Pharmaceuticals) met all three of its coprimary efficacy endpoints at all three doses assessed (6 g, 7.5 g, and 9 g). Patients receiving the drug showed significantly greater improvements on the Maintenance of Wakefulness Test (MWT), the Clinical Global Impression of Improvement (CGI-I), and mean weekly attacks of cataplexy, compared with those who received placebo.
, new research suggests. Top-line results from the phase 3The new analyses, which focused on key secondary outcomes, showed that all three doses of the novel agent were associated with significant improvements in sleep quality, refreshing nature of sleep, sleep paralysis, disturbed nocturnal sleep, and scores on the Epworth Sleepiness Scale (ESS).
Principal investigator Michael J. Thorpy, MD, director of the Sleep-Wake Disorders Center at the Montefiore Medical Center, New York, said in a news release that the results represent “the promise of a potential new treatment strategy for physicians and patients.”
“I am particularly impressed by the consistency of results as early as 3 weeks with only a 6-g dose,” he added.
Dr. Thorpy, who is also a professor of neurology at the Albert Einstein College of Medicine, noted that the new formulation will be more convenient for patients. “The advantage of this medication is its once-nightly formulation, so patients don’t need to awaken during the night and can actually have a better night’s sleep,” he said.
Dr. Thorpy presented the study findings at the 2021 annual meeting of the American Academy of Neurology.
FT218 is currently under review by the U.S. Food and Drug Administration, which has set Oct. 15 as the Prescription Drug User Fee Act target date.
Forced awakening
Sodium oxybate was first approved by the FDA in 2002 to treat cataplexy in adults with narcolepsy and was expanded in 2005 to also treat excessive daytime sleepiness (EDS). That formulation is indicated for twice-nightly administration, with the second dose taken 2.5-4 hours after the first.
“The need for forced awakening to take the second dose ... may result in noncompliance, which may lead to reduced efficacy and/or mistimed doses,” the investigators noted.
FT218 is a modified-release version of sodium oxybate. A single 6-g dose of the investigational agent “has shown bioequivalent exposure to twice-nightly immediate-release [sodium oxybate] given as two 3-g doses,” wrote the researchers.
It also currently has Orphan Drug Designation from the FDA for the treatment of narcolepsy.
The randomized, double-blind, placebo-controlled, multicenter REST-ON study was conducted from November 2016 to March 2020 and included patients 16 years or older who had narcolepsy type 1 or type 2.
Patients received the active treatment (n = 107; mean age, 30.9 years; 64.5% women) or placebo (n = 105; mean age, 31.6 years; 71.4% women) according to a four-period forced uptitration dosing schedule of 4.5 g for 1 week, 6 g for 2 weeks, 7.5 g for 5 weeks, and 9 g for 5 weeks.
Secondary outcome measures included the ESS, sleep quality/refreshing nature of sleep on a visual analog scale, sleep paralysis and hypnagogic hallucinations on a sleep symptoms diary, disturbed nocturnal sleep on polysomnographic measures, and number of arousals as defined per the American Academy of Sleep Medicine Score Manual.
Reports of adverse events (AEs) were collected from time of informed consent until 7 days after the last dose received.
Improvement across doses
Results showed that, compared with placebo, improvement in disturbed nocturnal sleep from baseline was significantly greater for the active treatment at 6 g at week 3 (mean between-group difference, –11; P < .001), at 7.5 g at week 8 (mean difference, –17.7; P < .001), and at 9 g at week 13 (mean difference, –22.6; P < .001).
The mean difference between the three doses and placebo for reduction in number of arousals was –11.3 (P < .05), –19.4 (P < .001), and –23.7 (P < .001), respectively. And the 6 g at week 3, 7.5 g at week 8, and 9 g at week 13 doses showed significant (P < .001) improvements versus placebo on the ESS (mean difference, –2.1, –3.2, and –3.9, respectively).
All three doses also showed significant improvement in sleep quality and refreshing nature of sleep (P < .001 for all comparisons), as well as improvement of sleep paralysis (P = .04, P = .02, and P = .04, respectively).
There were no significant differences between FT218 and placebo for improvement in hypnagogic hallucinations. Dr. Thorpy noted that the number of patients with baseline hallucinations “was relatively small,” which may have led to this finding. “Had there been a much larger population with hallucinations, I suspect that we would have seen a statistically significant improvement there as well,” he said.
Generally well tolerated
The investigators noted that FT218 was “generally well tolerated, and the most common adverse reactions were well-known and established sodium oxybate adverse reactions.”
Treatment-related AEs that occurred in more than 2% of the patients receiving FT218 included nausea, dizziness, enuresis, headache, decreased appetite, and vomiting.
Seven serious AEs were reported, including five in those assigned to the active treatment. This included one case each of diabetes inadequate control, paresthesia, perirectal abscess, hypertension, and suicidal ideation. Only the case of suicidal ideation was considered to be a treatment-related AE.
The investigators noted that, although they have not yet delved into subgroup analysis to look for differences among sex, age, or race, they plan to do so in the future.
Overall, the results indicate that “FT218 is an effective agent not only for the major symptoms of sleepiness and cataplexy, but also the quality of sleep at night,” said Dr. Thorpy.
Asked whether he thinks the FDA will approve the drug, he said that it should be “straightforward” because it’s just a different formulation of an already-approved agent. “I very much expect there will not be any problems in this medication being approved,” Dr. Thorpy said.
Benefits ‘sleep architecture’
Commenting on the findings, Logan Schneider, MD, codirector of the Stanford/VA Alzheimer’s Center and clinical assistant professor at the Stanford Sleep Center, Redwood City, Calif., said that the investigators’ focus on these secondary outcomes “was really worthwhile.”
Dr. Schneider, who was not involved in the research, noted that, because the study only included patients with narcolepsy, the results can’t be extrapolated to groups who have other sleep disorders.
Still, “it is worthwhile now to expand beyond the two primary symptoms that are, in my consideration, life threatening: daytime sleepiness and cataplexy. We should also address more of the quality of life and other aspects of narcolepsy, including disturbed nocturnal sleep and sleep quality issues related to that,” he said.
“Being able to address those aspects and say, ‘I have a therapy that clearly helps the multidimensionality of our patients’ is very vindicating,” Dr. Schneider noted.
He was also impressed with the various measures the researchers used, rather than relying just on patient reports, “which are subject to recollection difficulties. This was a nice way to quantify possibly as a diagnostic marker the underlying disruption of sleep, as well as a possible treatment marker to show how well a therapy works.”
“It actually shows a beneficial effect on sleep architecture,” Dr. Schneider said.
The study was funded by Avadel Pharmaceuticals. Dr. Thorpy is a consultant/advisory board member for Avadel, Axsome, Balance Therapeutics, Eisai, Harmony Biosciences, Jazz Pharmaceuticals, NLS Pharmaceuticals, Suven Life Sciences, and Takeda Pharmaceutical. Dr. Schneider reports being an adviser and/or on the speakers’ bureau for similar drugs by Jazz Pharmaceuticals and Harmony Biosciences.
A version of this article first appeared on Medscape.com.
REST-ON trial released earlier this year showed that the agent known as FT218 (Avadel Pharmaceuticals) met all three of its coprimary efficacy endpoints at all three doses assessed (6 g, 7.5 g, and 9 g). Patients receiving the drug showed significantly greater improvements on the Maintenance of Wakefulness Test (MWT), the Clinical Global Impression of Improvement (CGI-I), and mean weekly attacks of cataplexy, compared with those who received placebo.
, new research suggests. Top-line results from the phase 3The new analyses, which focused on key secondary outcomes, showed that all three doses of the novel agent were associated with significant improvements in sleep quality, refreshing nature of sleep, sleep paralysis, disturbed nocturnal sleep, and scores on the Epworth Sleepiness Scale (ESS).
Principal investigator Michael J. Thorpy, MD, director of the Sleep-Wake Disorders Center at the Montefiore Medical Center, New York, said in a news release that the results represent “the promise of a potential new treatment strategy for physicians and patients.”
“I am particularly impressed by the consistency of results as early as 3 weeks with only a 6-g dose,” he added.
Dr. Thorpy, who is also a professor of neurology at the Albert Einstein College of Medicine, noted that the new formulation will be more convenient for patients. “The advantage of this medication is its once-nightly formulation, so patients don’t need to awaken during the night and can actually have a better night’s sleep,” he said.
Dr. Thorpy presented the study findings at the 2021 annual meeting of the American Academy of Neurology.
FT218 is currently under review by the U.S. Food and Drug Administration, which has set Oct. 15 as the Prescription Drug User Fee Act target date.
Forced awakening
Sodium oxybate was first approved by the FDA in 2002 to treat cataplexy in adults with narcolepsy and was expanded in 2005 to also treat excessive daytime sleepiness (EDS). That formulation is indicated for twice-nightly administration, with the second dose taken 2.5-4 hours after the first.
“The need for forced awakening to take the second dose ... may result in noncompliance, which may lead to reduced efficacy and/or mistimed doses,” the investigators noted.
FT218 is a modified-release version of sodium oxybate. A single 6-g dose of the investigational agent “has shown bioequivalent exposure to twice-nightly immediate-release [sodium oxybate] given as two 3-g doses,” wrote the researchers.
It also currently has Orphan Drug Designation from the FDA for the treatment of narcolepsy.
The randomized, double-blind, placebo-controlled, multicenter REST-ON study was conducted from November 2016 to March 2020 and included patients 16 years or older who had narcolepsy type 1 or type 2.
Patients received the active treatment (n = 107; mean age, 30.9 years; 64.5% women) or placebo (n = 105; mean age, 31.6 years; 71.4% women) according to a four-period forced uptitration dosing schedule of 4.5 g for 1 week, 6 g for 2 weeks, 7.5 g for 5 weeks, and 9 g for 5 weeks.
Secondary outcome measures included the ESS, sleep quality/refreshing nature of sleep on a visual analog scale, sleep paralysis and hypnagogic hallucinations on a sleep symptoms diary, disturbed nocturnal sleep on polysomnographic measures, and number of arousals as defined per the American Academy of Sleep Medicine Score Manual.
Reports of adverse events (AEs) were collected from time of informed consent until 7 days after the last dose received.
Improvement across doses
Results showed that, compared with placebo, improvement in disturbed nocturnal sleep from baseline was significantly greater for the active treatment at 6 g at week 3 (mean between-group difference, –11; P < .001), at 7.5 g at week 8 (mean difference, –17.7; P < .001), and at 9 g at week 13 (mean difference, –22.6; P < .001).
The mean difference between the three doses and placebo for reduction in number of arousals was –11.3 (P < .05), –19.4 (P < .001), and –23.7 (P < .001), respectively. And the 6 g at week 3, 7.5 g at week 8, and 9 g at week 13 doses showed significant (P < .001) improvements versus placebo on the ESS (mean difference, –2.1, –3.2, and –3.9, respectively).
All three doses also showed significant improvement in sleep quality and refreshing nature of sleep (P < .001 for all comparisons), as well as improvement of sleep paralysis (P = .04, P = .02, and P = .04, respectively).
There were no significant differences between FT218 and placebo for improvement in hypnagogic hallucinations. Dr. Thorpy noted that the number of patients with baseline hallucinations “was relatively small,” which may have led to this finding. “Had there been a much larger population with hallucinations, I suspect that we would have seen a statistically significant improvement there as well,” he said.
Generally well tolerated
The investigators noted that FT218 was “generally well tolerated, and the most common adverse reactions were well-known and established sodium oxybate adverse reactions.”
Treatment-related AEs that occurred in more than 2% of the patients receiving FT218 included nausea, dizziness, enuresis, headache, decreased appetite, and vomiting.
Seven serious AEs were reported, including five in those assigned to the active treatment. This included one case each of diabetes inadequate control, paresthesia, perirectal abscess, hypertension, and suicidal ideation. Only the case of suicidal ideation was considered to be a treatment-related AE.
The investigators noted that, although they have not yet delved into subgroup analysis to look for differences among sex, age, or race, they plan to do so in the future.
Overall, the results indicate that “FT218 is an effective agent not only for the major symptoms of sleepiness and cataplexy, but also the quality of sleep at night,” said Dr. Thorpy.
Asked whether he thinks the FDA will approve the drug, he said that it should be “straightforward” because it’s just a different formulation of an already-approved agent. “I very much expect there will not be any problems in this medication being approved,” Dr. Thorpy said.
Benefits ‘sleep architecture’
Commenting on the findings, Logan Schneider, MD, codirector of the Stanford/VA Alzheimer’s Center and clinical assistant professor at the Stanford Sleep Center, Redwood City, Calif., said that the investigators’ focus on these secondary outcomes “was really worthwhile.”
Dr. Schneider, who was not involved in the research, noted that, because the study only included patients with narcolepsy, the results can’t be extrapolated to groups who have other sleep disorders.
Still, “it is worthwhile now to expand beyond the two primary symptoms that are, in my consideration, life threatening: daytime sleepiness and cataplexy. We should also address more of the quality of life and other aspects of narcolepsy, including disturbed nocturnal sleep and sleep quality issues related to that,” he said.
“Being able to address those aspects and say, ‘I have a therapy that clearly helps the multidimensionality of our patients’ is very vindicating,” Dr. Schneider noted.
He was also impressed with the various measures the researchers used, rather than relying just on patient reports, “which are subject to recollection difficulties. This was a nice way to quantify possibly as a diagnostic marker the underlying disruption of sleep, as well as a possible treatment marker to show how well a therapy works.”
“It actually shows a beneficial effect on sleep architecture,” Dr. Schneider said.
The study was funded by Avadel Pharmaceuticals. Dr. Thorpy is a consultant/advisory board member for Avadel, Axsome, Balance Therapeutics, Eisai, Harmony Biosciences, Jazz Pharmaceuticals, NLS Pharmaceuticals, Suven Life Sciences, and Takeda Pharmaceutical. Dr. Schneider reports being an adviser and/or on the speakers’ bureau for similar drugs by Jazz Pharmaceuticals and Harmony Biosciences.
A version of this article first appeared on Medscape.com.
REST-ON trial released earlier this year showed that the agent known as FT218 (Avadel Pharmaceuticals) met all three of its coprimary efficacy endpoints at all three doses assessed (6 g, 7.5 g, and 9 g). Patients receiving the drug showed significantly greater improvements on the Maintenance of Wakefulness Test (MWT), the Clinical Global Impression of Improvement (CGI-I), and mean weekly attacks of cataplexy, compared with those who received placebo.
, new research suggests. Top-line results from the phase 3The new analyses, which focused on key secondary outcomes, showed that all three doses of the novel agent were associated with significant improvements in sleep quality, refreshing nature of sleep, sleep paralysis, disturbed nocturnal sleep, and scores on the Epworth Sleepiness Scale (ESS).
Principal investigator Michael J. Thorpy, MD, director of the Sleep-Wake Disorders Center at the Montefiore Medical Center, New York, said in a news release that the results represent “the promise of a potential new treatment strategy for physicians and patients.”
“I am particularly impressed by the consistency of results as early as 3 weeks with only a 6-g dose,” he added.
Dr. Thorpy, who is also a professor of neurology at the Albert Einstein College of Medicine, noted that the new formulation will be more convenient for patients. “The advantage of this medication is its once-nightly formulation, so patients don’t need to awaken during the night and can actually have a better night’s sleep,” he said.
Dr. Thorpy presented the study findings at the 2021 annual meeting of the American Academy of Neurology.
FT218 is currently under review by the U.S. Food and Drug Administration, which has set Oct. 15 as the Prescription Drug User Fee Act target date.
Forced awakening
Sodium oxybate was first approved by the FDA in 2002 to treat cataplexy in adults with narcolepsy and was expanded in 2005 to also treat excessive daytime sleepiness (EDS). That formulation is indicated for twice-nightly administration, with the second dose taken 2.5-4 hours after the first.
“The need for forced awakening to take the second dose ... may result in noncompliance, which may lead to reduced efficacy and/or mistimed doses,” the investigators noted.
FT218 is a modified-release version of sodium oxybate. A single 6-g dose of the investigational agent “has shown bioequivalent exposure to twice-nightly immediate-release [sodium oxybate] given as two 3-g doses,” wrote the researchers.
It also currently has Orphan Drug Designation from the FDA for the treatment of narcolepsy.
The randomized, double-blind, placebo-controlled, multicenter REST-ON study was conducted from November 2016 to March 2020 and included patients 16 years or older who had narcolepsy type 1 or type 2.
Patients received the active treatment (n = 107; mean age, 30.9 years; 64.5% women) or placebo (n = 105; mean age, 31.6 years; 71.4% women) according to a four-period forced uptitration dosing schedule of 4.5 g for 1 week, 6 g for 2 weeks, 7.5 g for 5 weeks, and 9 g for 5 weeks.
Secondary outcome measures included the ESS, sleep quality/refreshing nature of sleep on a visual analog scale, sleep paralysis and hypnagogic hallucinations on a sleep symptoms diary, disturbed nocturnal sleep on polysomnographic measures, and number of arousals as defined per the American Academy of Sleep Medicine Score Manual.
Reports of adverse events (AEs) were collected from time of informed consent until 7 days after the last dose received.
Improvement across doses
Results showed that, compared with placebo, improvement in disturbed nocturnal sleep from baseline was significantly greater for the active treatment at 6 g at week 3 (mean between-group difference, –11; P < .001), at 7.5 g at week 8 (mean difference, –17.7; P < .001), and at 9 g at week 13 (mean difference, –22.6; P < .001).
The mean difference between the three doses and placebo for reduction in number of arousals was –11.3 (P < .05), –19.4 (P < .001), and –23.7 (P < .001), respectively. And the 6 g at week 3, 7.5 g at week 8, and 9 g at week 13 doses showed significant (P < .001) improvements versus placebo on the ESS (mean difference, –2.1, –3.2, and –3.9, respectively).
All three doses also showed significant improvement in sleep quality and refreshing nature of sleep (P < .001 for all comparisons), as well as improvement of sleep paralysis (P = .04, P = .02, and P = .04, respectively).
There were no significant differences between FT218 and placebo for improvement in hypnagogic hallucinations. Dr. Thorpy noted that the number of patients with baseline hallucinations “was relatively small,” which may have led to this finding. “Had there been a much larger population with hallucinations, I suspect that we would have seen a statistically significant improvement there as well,” he said.
Generally well tolerated
The investigators noted that FT218 was “generally well tolerated, and the most common adverse reactions were well-known and established sodium oxybate adverse reactions.”
Treatment-related AEs that occurred in more than 2% of the patients receiving FT218 included nausea, dizziness, enuresis, headache, decreased appetite, and vomiting.
Seven serious AEs were reported, including five in those assigned to the active treatment. This included one case each of diabetes inadequate control, paresthesia, perirectal abscess, hypertension, and suicidal ideation. Only the case of suicidal ideation was considered to be a treatment-related AE.
The investigators noted that, although they have not yet delved into subgroup analysis to look for differences among sex, age, or race, they plan to do so in the future.
Overall, the results indicate that “FT218 is an effective agent not only for the major symptoms of sleepiness and cataplexy, but also the quality of sleep at night,” said Dr. Thorpy.
Asked whether he thinks the FDA will approve the drug, he said that it should be “straightforward” because it’s just a different formulation of an already-approved agent. “I very much expect there will not be any problems in this medication being approved,” Dr. Thorpy said.
Benefits ‘sleep architecture’
Commenting on the findings, Logan Schneider, MD, codirector of the Stanford/VA Alzheimer’s Center and clinical assistant professor at the Stanford Sleep Center, Redwood City, Calif., said that the investigators’ focus on these secondary outcomes “was really worthwhile.”
Dr. Schneider, who was not involved in the research, noted that, because the study only included patients with narcolepsy, the results can’t be extrapolated to groups who have other sleep disorders.
Still, “it is worthwhile now to expand beyond the two primary symptoms that are, in my consideration, life threatening: daytime sleepiness and cataplexy. We should also address more of the quality of life and other aspects of narcolepsy, including disturbed nocturnal sleep and sleep quality issues related to that,” he said.
“Being able to address those aspects and say, ‘I have a therapy that clearly helps the multidimensionality of our patients’ is very vindicating,” Dr. Schneider noted.
He was also impressed with the various measures the researchers used, rather than relying just on patient reports, “which are subject to recollection difficulties. This was a nice way to quantify possibly as a diagnostic marker the underlying disruption of sleep, as well as a possible treatment marker to show how well a therapy works.”
“It actually shows a beneficial effect on sleep architecture,” Dr. Schneider said.
The study was funded by Avadel Pharmaceuticals. Dr. Thorpy is a consultant/advisory board member for Avadel, Axsome, Balance Therapeutics, Eisai, Harmony Biosciences, Jazz Pharmaceuticals, NLS Pharmaceuticals, Suven Life Sciences, and Takeda Pharmaceutical. Dr. Schneider reports being an adviser and/or on the speakers’ bureau for similar drugs by Jazz Pharmaceuticals and Harmony Biosciences.
A version of this article first appeared on Medscape.com.
FROM AAN 2021
Motor abnormalities in children a harbinger of serious mental illness?
Motor problems in children may be a harbinger of serious mental illness, new research suggests.
Investigators found that motor abnormalities were twice as common among those who develop psychosis or depression, compared with their counterparts in the general population, suggesting that these abnormalities may help predict vulnerability and provide an opportunity for early intervention.
“We have learned there are motor signs that are measurable in adolescence [that are] more prevalent in these disorders,” said lead investigator Katherine S. F. Damme, PhD, adolescent development and preventive treatment program (ADAPT), Northwestern University, Chicago.
“This is just scratching the surface of motor signs, but they may have some transdiagnostic vulnerability across these psychopathologies” to which sensorimotor connectivity and motor behaviors “might provide additional insight,” Dr. Damme added.
The findings were presented at the Virtual Congress of the Schizophrenia International Research Society 2021.
A core symptom
There has been a lot of interest in the pathophysiology of psychosis and in detecting it early, said Dr. Damme. “It has devastating effects, and early intervention is of great importance,” she added.
However, previous research has typically focused on affect or cognition, rather than on motor signs, despite the fact that motor signs are a “core symptom of both psychosis and depression.”
The prevalence and presentation of motor signs in adolescence, which is a “critical time for identifying these risk markers” because of their proximity to the onset of psychosis, has been understudied, Dr. Damme said.
For their study, the investigators gathered motor function data from the Adolescent Brain Cognitive Development Study (ABCD), which included 10,835 children aged 9-11 years with broad demographic diversity from 21 sites across the United States.
Overall, 27.6% of the children were reported to have least one motor sign; approximately 3% were reported to have two or more motor signs.
The most common of these was dyscoordination, which was endorsed by 19.3% of participants. In addition, 8.8% were reported to have had experienced developmental motor delays, 1.5% had psychomotor agitation, and 0.3% had psychomotor retardation.
The investigators determined that 4.6% of participants met criteria for depression, 2.6% for a psychosis, and 1.8% for comorbid psychosis and depression.
Motor signs were much more common among children with depression, psychosis, or both than among those who did not have these conditions; 45.8% reported having at least one motor sign.
Developmental motor delays and dyscoordination occurred at about the same rate in both patients with depression and those with psychosis. Rates were higher among patients with both of these conditions than among those with either condition alone.
In contrast, psychomotor agitation was more common among patients with depression alone and among those with comorbid depression and psychosis than among patients with psychosis alone. The rate of psychomotor retardation was increased among patients with psychosis alone but was less common among patients with comorbidity than in the healthy control group.
Familial vulnerability
The investigators also assessed participants who had not been diagnosed with a mental illness but who had a family history of depression only (28.9%), a relative with psychosis-like experiences (0.6%), or a family history of both depression and psychosis experiences (1.8%).
Although the effect size was smaller, there was a higher rate of motor signs among participants with a family history of these conditions, Dr. Damme said. “Again, we see that it’s elevated across developmental motor delays and at a similar rate in people who have depression and psychosis.”
In addition, psychomotor agitation was linked to depression with psychosis and depression without it.
Sensorimotor connectivity network data for the cohort indicated there was no main effect of diagnosis on corticostriatal connectivity.
However, more depressive symptoms were related to less connectivity (P = .024). There was a similar finding for psychotic-like experiences. The total number of such experiences related to lower connectivity (P < .001).
During the postpresentation discussion, Ian Kelleher, MD, PhD, honorary clinical lecturer in psychiatry at the Royal College of Surgeons in Ireland, Dublin, said he was “surprised” by the finding that the rate of psychomotor retardation was lower among participants with psychosis and depression.
Dr. Damme noted that some of the motor sign item ratings came by way of a child interview and that some of these item ratings came from the adults in the children’s lives.
She added that she was not entirely sure whether asking an 8- to 11-year-old in a clinical interview whether they are experiencing motor signs “might be the best way to get at motor slowing.”
Subtle features
Commenting on the findings in an interview, Peter F. Liddle, MD, PhD, professor of psychiatry, at the University of Nottingham (England), noted that the “features we’re talking about are pretty subtle.
“What I’ve been wondering about for some time is whether we should be getting video recordings and using machine learning approaches to teach a computer to recognize normal movements vs abnormal movements, and particularly facial expression,” said Dr. Liddle, who was not involved with the research.
He called the current study “interesting” but noted several factors that affect the potential utility of the findings in predicting outcomes.
First, they “may not be very good for distinguishing schizophrenia from mood disorders; but if the question is simply determining which young person might go on to develop a significant mental disorder, then it may be useful,” Dr. Liddle said.
He endorsed the investigators’ conclusion that motor abnormalities may be a transdiagnostic marker. Beyond that, they may be “more useful as a predictor of the likely long-term severity, but that’s my own hypothesis based on my work,” he added.
Another question concerns the sensitivity of motor abnormalities as a predictive marker. With the rate of the abnormalities identified in those who developed psychosis and depression about double the rate in the overall population, “it sounds like those assessors were fairly sensitive. … but not all that specific,” said Dr. Liddle.
A third issue relates to treatment. “By the time people get sent to a psychiatrist for assessment for possible impending psychotic illness, they’ve often already had medication,” typically an antidepressant or antipsychotic.
“It’s very well established that dopamine-blocking antipsychotics produce hypokinesia and also dyskinesia,” which could then become a confounding factor, Dr. Liddle said.
The study was funded by grants from the National Institute of Mental Health. The study authors and Dr. Liddle have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Motor problems in children may be a harbinger of serious mental illness, new research suggests.
Investigators found that motor abnormalities were twice as common among those who develop psychosis or depression, compared with their counterparts in the general population, suggesting that these abnormalities may help predict vulnerability and provide an opportunity for early intervention.
“We have learned there are motor signs that are measurable in adolescence [that are] more prevalent in these disorders,” said lead investigator Katherine S. F. Damme, PhD, adolescent development and preventive treatment program (ADAPT), Northwestern University, Chicago.
“This is just scratching the surface of motor signs, but they may have some transdiagnostic vulnerability across these psychopathologies” to which sensorimotor connectivity and motor behaviors “might provide additional insight,” Dr. Damme added.
The findings were presented at the Virtual Congress of the Schizophrenia International Research Society 2021.
A core symptom
There has been a lot of interest in the pathophysiology of psychosis and in detecting it early, said Dr. Damme. “It has devastating effects, and early intervention is of great importance,” she added.
However, previous research has typically focused on affect or cognition, rather than on motor signs, despite the fact that motor signs are a “core symptom of both psychosis and depression.”
The prevalence and presentation of motor signs in adolescence, which is a “critical time for identifying these risk markers” because of their proximity to the onset of psychosis, has been understudied, Dr. Damme said.
For their study, the investigators gathered motor function data from the Adolescent Brain Cognitive Development Study (ABCD), which included 10,835 children aged 9-11 years with broad demographic diversity from 21 sites across the United States.
Overall, 27.6% of the children were reported to have least one motor sign; approximately 3% were reported to have two or more motor signs.
The most common of these was dyscoordination, which was endorsed by 19.3% of participants. In addition, 8.8% were reported to have had experienced developmental motor delays, 1.5% had psychomotor agitation, and 0.3% had psychomotor retardation.
The investigators determined that 4.6% of participants met criteria for depression, 2.6% for a psychosis, and 1.8% for comorbid psychosis and depression.
Motor signs were much more common among children with depression, psychosis, or both than among those who did not have these conditions; 45.8% reported having at least one motor sign.
Developmental motor delays and dyscoordination occurred at about the same rate in both patients with depression and those with psychosis. Rates were higher among patients with both of these conditions than among those with either condition alone.
In contrast, psychomotor agitation was more common among patients with depression alone and among those with comorbid depression and psychosis than among patients with psychosis alone. The rate of psychomotor retardation was increased among patients with psychosis alone but was less common among patients with comorbidity than in the healthy control group.
Familial vulnerability
The investigators also assessed participants who had not been diagnosed with a mental illness but who had a family history of depression only (28.9%), a relative with psychosis-like experiences (0.6%), or a family history of both depression and psychosis experiences (1.8%).
Although the effect size was smaller, there was a higher rate of motor signs among participants with a family history of these conditions, Dr. Damme said. “Again, we see that it’s elevated across developmental motor delays and at a similar rate in people who have depression and psychosis.”
In addition, psychomotor agitation was linked to depression with psychosis and depression without it.
Sensorimotor connectivity network data for the cohort indicated there was no main effect of diagnosis on corticostriatal connectivity.
However, more depressive symptoms were related to less connectivity (P = .024). There was a similar finding for psychotic-like experiences. The total number of such experiences related to lower connectivity (P < .001).
During the postpresentation discussion, Ian Kelleher, MD, PhD, honorary clinical lecturer in psychiatry at the Royal College of Surgeons in Ireland, Dublin, said he was “surprised” by the finding that the rate of psychomotor retardation was lower among participants with psychosis and depression.
Dr. Damme noted that some of the motor sign item ratings came by way of a child interview and that some of these item ratings came from the adults in the children’s lives.
She added that she was not entirely sure whether asking an 8- to 11-year-old in a clinical interview whether they are experiencing motor signs “might be the best way to get at motor slowing.”
Subtle features
Commenting on the findings in an interview, Peter F. Liddle, MD, PhD, professor of psychiatry, at the University of Nottingham (England), noted that the “features we’re talking about are pretty subtle.
“What I’ve been wondering about for some time is whether we should be getting video recordings and using machine learning approaches to teach a computer to recognize normal movements vs abnormal movements, and particularly facial expression,” said Dr. Liddle, who was not involved with the research.
He called the current study “interesting” but noted several factors that affect the potential utility of the findings in predicting outcomes.
First, they “may not be very good for distinguishing schizophrenia from mood disorders; but if the question is simply determining which young person might go on to develop a significant mental disorder, then it may be useful,” Dr. Liddle said.
He endorsed the investigators’ conclusion that motor abnormalities may be a transdiagnostic marker. Beyond that, they may be “more useful as a predictor of the likely long-term severity, but that’s my own hypothesis based on my work,” he added.
Another question concerns the sensitivity of motor abnormalities as a predictive marker. With the rate of the abnormalities identified in those who developed psychosis and depression about double the rate in the overall population, “it sounds like those assessors were fairly sensitive. … but not all that specific,” said Dr. Liddle.
A third issue relates to treatment. “By the time people get sent to a psychiatrist for assessment for possible impending psychotic illness, they’ve often already had medication,” typically an antidepressant or antipsychotic.
“It’s very well established that dopamine-blocking antipsychotics produce hypokinesia and also dyskinesia,” which could then become a confounding factor, Dr. Liddle said.
The study was funded by grants from the National Institute of Mental Health. The study authors and Dr. Liddle have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Motor problems in children may be a harbinger of serious mental illness, new research suggests.
Investigators found that motor abnormalities were twice as common among those who develop psychosis or depression, compared with their counterparts in the general population, suggesting that these abnormalities may help predict vulnerability and provide an opportunity for early intervention.
“We have learned there are motor signs that are measurable in adolescence [that are] more prevalent in these disorders,” said lead investigator Katherine S. F. Damme, PhD, adolescent development and preventive treatment program (ADAPT), Northwestern University, Chicago.
“This is just scratching the surface of motor signs, but they may have some transdiagnostic vulnerability across these psychopathologies” to which sensorimotor connectivity and motor behaviors “might provide additional insight,” Dr. Damme added.
The findings were presented at the Virtual Congress of the Schizophrenia International Research Society 2021.
A core symptom
There has been a lot of interest in the pathophysiology of psychosis and in detecting it early, said Dr. Damme. “It has devastating effects, and early intervention is of great importance,” she added.
However, previous research has typically focused on affect or cognition, rather than on motor signs, despite the fact that motor signs are a “core symptom of both psychosis and depression.”
The prevalence and presentation of motor signs in adolescence, which is a “critical time for identifying these risk markers” because of their proximity to the onset of psychosis, has been understudied, Dr. Damme said.
For their study, the investigators gathered motor function data from the Adolescent Brain Cognitive Development Study (ABCD), which included 10,835 children aged 9-11 years with broad demographic diversity from 21 sites across the United States.
Overall, 27.6% of the children were reported to have least one motor sign; approximately 3% were reported to have two or more motor signs.
The most common of these was dyscoordination, which was endorsed by 19.3% of participants. In addition, 8.8% were reported to have had experienced developmental motor delays, 1.5% had psychomotor agitation, and 0.3% had psychomotor retardation.
The investigators determined that 4.6% of participants met criteria for depression, 2.6% for a psychosis, and 1.8% for comorbid psychosis and depression.
Motor signs were much more common among children with depression, psychosis, or both than among those who did not have these conditions; 45.8% reported having at least one motor sign.
Developmental motor delays and dyscoordination occurred at about the same rate in both patients with depression and those with psychosis. Rates were higher among patients with both of these conditions than among those with either condition alone.
In contrast, psychomotor agitation was more common among patients with depression alone and among those with comorbid depression and psychosis than among patients with psychosis alone. The rate of psychomotor retardation was increased among patients with psychosis alone but was less common among patients with comorbidity than in the healthy control group.
Familial vulnerability
The investigators also assessed participants who had not been diagnosed with a mental illness but who had a family history of depression only (28.9%), a relative with psychosis-like experiences (0.6%), or a family history of both depression and psychosis experiences (1.8%).
Although the effect size was smaller, there was a higher rate of motor signs among participants with a family history of these conditions, Dr. Damme said. “Again, we see that it’s elevated across developmental motor delays and at a similar rate in people who have depression and psychosis.”
In addition, psychomotor agitation was linked to depression with psychosis and depression without it.
Sensorimotor connectivity network data for the cohort indicated there was no main effect of diagnosis on corticostriatal connectivity.
However, more depressive symptoms were related to less connectivity (P = .024). There was a similar finding for psychotic-like experiences. The total number of such experiences related to lower connectivity (P < .001).
During the postpresentation discussion, Ian Kelleher, MD, PhD, honorary clinical lecturer in psychiatry at the Royal College of Surgeons in Ireland, Dublin, said he was “surprised” by the finding that the rate of psychomotor retardation was lower among participants with psychosis and depression.
Dr. Damme noted that some of the motor sign item ratings came by way of a child interview and that some of these item ratings came from the adults in the children’s lives.
She added that she was not entirely sure whether asking an 8- to 11-year-old in a clinical interview whether they are experiencing motor signs “might be the best way to get at motor slowing.”
Subtle features
Commenting on the findings in an interview, Peter F. Liddle, MD, PhD, professor of psychiatry, at the University of Nottingham (England), noted that the “features we’re talking about are pretty subtle.
“What I’ve been wondering about for some time is whether we should be getting video recordings and using machine learning approaches to teach a computer to recognize normal movements vs abnormal movements, and particularly facial expression,” said Dr. Liddle, who was not involved with the research.
He called the current study “interesting” but noted several factors that affect the potential utility of the findings in predicting outcomes.
First, they “may not be very good for distinguishing schizophrenia from mood disorders; but if the question is simply determining which young person might go on to develop a significant mental disorder, then it may be useful,” Dr. Liddle said.
He endorsed the investigators’ conclusion that motor abnormalities may be a transdiagnostic marker. Beyond that, they may be “more useful as a predictor of the likely long-term severity, but that’s my own hypothesis based on my work,” he added.
Another question concerns the sensitivity of motor abnormalities as a predictive marker. With the rate of the abnormalities identified in those who developed psychosis and depression about double the rate in the overall population, “it sounds like those assessors were fairly sensitive. … but not all that specific,” said Dr. Liddle.
A third issue relates to treatment. “By the time people get sent to a psychiatrist for assessment for possible impending psychotic illness, they’ve often already had medication,” typically an antidepressant or antipsychotic.
“It’s very well established that dopamine-blocking antipsychotics produce hypokinesia and also dyskinesia,” which could then become a confounding factor, Dr. Liddle said.
The study was funded by grants from the National Institute of Mental Health. The study authors and Dr. Liddle have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Structural racism tied to psychosis risk in Black people
Social and economic disparities are linked to an increased risk for psychosis in Black and Latino communities, new research shows.
Results of a literature review of social and economic disparities in mental illness suggest that “structural racism” contributes to social and environmental conditions that affect psychosis risk.
“Black and Latino people suffer disproportionately from psychosis risk factors, at the neighborhood level and at the individual level, in large part as a result of structural racism,” study investigator Deidre M. Anglin, PhD, associate professor, department of psychology, City College of New York (N.Y.), told reporters attending a press briefing.
The social environment, which, for minorities, involves disadvantage and discrimination, may account for this increased psychosis risk, perhaps even more so than genetics, she said. Structural racism “is a critical public health threat,” Dr. Anglin added.
The findings were presented at the virtual American Psychiatric Association annual meeting and were simultaneously published online May 3 in The American Journal of Psychiatry.
Perpetual disadvantage
Dr. Anglin and colleagues examined U.S.-based evidence connecting characteristics of social environments with outcomes across the psychosis continuum – from psychotic experiences to schizophrenia.
Citing numerous studies, the researchers highlighted three key areas that reflect social and environmental conditions that may affect psychosis risk, and that disproportionately affect minorities. These were neighborhood factors, trauma in a U.S. context, and racial disparities during the prenatal and perinatal periods.
The data that were related to neighborhoods revealed “just how much racism has historically structured U.S. neighborhoods in ways that generationally perpetuate disadvantage for racially minoritized communities,” said Dr. Anglin.
“This happens through inequitable access to resources, such as health care, clean air, education, [and] employment, but also in terms of disproportionate exposure to environmental toxins and stressors,” she said.
These neighborhood factors are associated with cumulative stress that may be linked to heightened risk for psychosis, the investigators noted.
U.S. studies show that rates of adverse childhood experiences, such as abuse and emotional and physical neglect, are higher among racial and ethnic minorities.
Police victimization and gun violence disproportionately affect racial minorities and create what the investigators call “a unique type of collective trauma” in the United States. They note that Black men have a 1 in 1,000 chance of being victims of lethal force by police over their lifetimes. By comparison, White men have a 39 in 100,000 chance.
One study of a diverse sample from four large U.S. urban centers showed that those who self-reported different types of police victimization were more likely to report psychotic experiences. Another study showed that greater exposure to gun violence fatalities, regardless of police involvement, was positively associated with psychotic experiences.
Obstetric complications
A variety of obstetric complications, including infection, maternal inflammation, and stress, have been associated with increased risk for psychotic disorders in U.S. samples.
“What we saw emerge from the literature is that Black women in the U.S. are at substantially increased risk for many of these obstetrical complications compared to White women, and this is not necessarily explained by socioeconomic status,” said Dr. Anglin.
Neighborhood- and individual-level factors appear to affect the disparity in these outcomes. A recent study revealed that exposure to environmental contaminants such as air pollution is associated with higher rates of preterm birth and low birth weight differentially in Black mothers compared with other mothers, “possibly as a result of an interaction between prenatal stress and contaminants,” the investigators noted.
Research also indicates that Black women are more likely to have lower levels of cortisol during the second trimester of pregnancy compared with women of other racial and ethnic groups. Cortisol is essential for fetal growth. Evidence links lower cortisol levels in later stages of pregnancy with decreased fetal growth in individuals who develop schizophrenia.
, compared with White women of the same socioeconomic status.
Such findings “highlight a complex picture” involving maternal cortisol levels and other stress biomarkers, “potentially leading to poor birth outcomes and subsequent risk for psychotic disorders in adulthood,” the investigators noted.
The researchers call for the dismantling of structural racism and the social policies and norms it shapes. They also recommend changes in health care policy and in the approach to early intervention for psychosis among Black and other racially-minoritized groups.
“Altogether, the current evidence suggests the need to identify, address, and tackle the social determinants deeply ingrained in U.S. society, in tandem with empowering the most marginalized communities,” the researchers wrote.
“We recommend that the field of psychiatry devote considerably more effort to addressing structural racism and social determinants of psychosis in funding priorities, training, and intervention development,” they added.
Dr. Anglin suggests that mental health providers use what she called a “cultural formulation interview” that takes a person’s environmental and social context into consideration. Studies show that incorporating this into clinical practice helps reduce misdiagnosis of mental illness in Black populations, she said.
Call to action
Commenting on the findings in an interview, Ned H. Kalin, MD, editor of The American Journal of Psychiatry and professor and chair of the department of psychiatry, University of Wisconsin, Madison, said the study was well done and serves as a “call to action” to address the impact of structural racism on mental health issues and psychiatric diseases.
The article highlights the need for “collecting better data” on structural racism, said Dr. Kalin. “We know it’s a big issue, but we can’t even quantitate it, so we need some fundamental measures to use as a benchmark as we move forward, as we try to make change.”
He noted that racism “is so embedded in one’s experience and in our society that we sort of don’t even think about it as a trauma.”
In psychiatry, for example, trauma is often thought of as a loss or a traumatic event. “We don’t typically think of trauma as an experience that pervades one’s entire life,” but that needs to change, he said. “At the individual level and in the doctor’s office, being sensitive to and aware of these issues is absolutely critical.”
Dr. Anglin and Dr. Kalin have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Social and economic disparities are linked to an increased risk for psychosis in Black and Latino communities, new research shows.
Results of a literature review of social and economic disparities in mental illness suggest that “structural racism” contributes to social and environmental conditions that affect psychosis risk.
“Black and Latino people suffer disproportionately from psychosis risk factors, at the neighborhood level and at the individual level, in large part as a result of structural racism,” study investigator Deidre M. Anglin, PhD, associate professor, department of psychology, City College of New York (N.Y.), told reporters attending a press briefing.
The social environment, which, for minorities, involves disadvantage and discrimination, may account for this increased psychosis risk, perhaps even more so than genetics, she said. Structural racism “is a critical public health threat,” Dr. Anglin added.
The findings were presented at the virtual American Psychiatric Association annual meeting and were simultaneously published online May 3 in The American Journal of Psychiatry.
Perpetual disadvantage
Dr. Anglin and colleagues examined U.S.-based evidence connecting characteristics of social environments with outcomes across the psychosis continuum – from psychotic experiences to schizophrenia.
Citing numerous studies, the researchers highlighted three key areas that reflect social and environmental conditions that may affect psychosis risk, and that disproportionately affect minorities. These were neighborhood factors, trauma in a U.S. context, and racial disparities during the prenatal and perinatal periods.
The data that were related to neighborhoods revealed “just how much racism has historically structured U.S. neighborhoods in ways that generationally perpetuate disadvantage for racially minoritized communities,” said Dr. Anglin.
“This happens through inequitable access to resources, such as health care, clean air, education, [and] employment, but also in terms of disproportionate exposure to environmental toxins and stressors,” she said.
These neighborhood factors are associated with cumulative stress that may be linked to heightened risk for psychosis, the investigators noted.
U.S. studies show that rates of adverse childhood experiences, such as abuse and emotional and physical neglect, are higher among racial and ethnic minorities.
Police victimization and gun violence disproportionately affect racial minorities and create what the investigators call “a unique type of collective trauma” in the United States. They note that Black men have a 1 in 1,000 chance of being victims of lethal force by police over their lifetimes. By comparison, White men have a 39 in 100,000 chance.
One study of a diverse sample from four large U.S. urban centers showed that those who self-reported different types of police victimization were more likely to report psychotic experiences. Another study showed that greater exposure to gun violence fatalities, regardless of police involvement, was positively associated with psychotic experiences.
Obstetric complications
A variety of obstetric complications, including infection, maternal inflammation, and stress, have been associated with increased risk for psychotic disorders in U.S. samples.
“What we saw emerge from the literature is that Black women in the U.S. are at substantially increased risk for many of these obstetrical complications compared to White women, and this is not necessarily explained by socioeconomic status,” said Dr. Anglin.
Neighborhood- and individual-level factors appear to affect the disparity in these outcomes. A recent study revealed that exposure to environmental contaminants such as air pollution is associated with higher rates of preterm birth and low birth weight differentially in Black mothers compared with other mothers, “possibly as a result of an interaction between prenatal stress and contaminants,” the investigators noted.
Research also indicates that Black women are more likely to have lower levels of cortisol during the second trimester of pregnancy compared with women of other racial and ethnic groups. Cortisol is essential for fetal growth. Evidence links lower cortisol levels in later stages of pregnancy with decreased fetal growth in individuals who develop schizophrenia.
, compared with White women of the same socioeconomic status.
Such findings “highlight a complex picture” involving maternal cortisol levels and other stress biomarkers, “potentially leading to poor birth outcomes and subsequent risk for psychotic disorders in adulthood,” the investigators noted.
The researchers call for the dismantling of structural racism and the social policies and norms it shapes. They also recommend changes in health care policy and in the approach to early intervention for psychosis among Black and other racially-minoritized groups.
“Altogether, the current evidence suggests the need to identify, address, and tackle the social determinants deeply ingrained in U.S. society, in tandem with empowering the most marginalized communities,” the researchers wrote.
“We recommend that the field of psychiatry devote considerably more effort to addressing structural racism and social determinants of psychosis in funding priorities, training, and intervention development,” they added.
Dr. Anglin suggests that mental health providers use what she called a “cultural formulation interview” that takes a person’s environmental and social context into consideration. Studies show that incorporating this into clinical practice helps reduce misdiagnosis of mental illness in Black populations, she said.
Call to action
Commenting on the findings in an interview, Ned H. Kalin, MD, editor of The American Journal of Psychiatry and professor and chair of the department of psychiatry, University of Wisconsin, Madison, said the study was well done and serves as a “call to action” to address the impact of structural racism on mental health issues and psychiatric diseases.
The article highlights the need for “collecting better data” on structural racism, said Dr. Kalin. “We know it’s a big issue, but we can’t even quantitate it, so we need some fundamental measures to use as a benchmark as we move forward, as we try to make change.”
He noted that racism “is so embedded in one’s experience and in our society that we sort of don’t even think about it as a trauma.”
In psychiatry, for example, trauma is often thought of as a loss or a traumatic event. “We don’t typically think of trauma as an experience that pervades one’s entire life,” but that needs to change, he said. “At the individual level and in the doctor’s office, being sensitive to and aware of these issues is absolutely critical.”
Dr. Anglin and Dr. Kalin have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Social and economic disparities are linked to an increased risk for psychosis in Black and Latino communities, new research shows.
Results of a literature review of social and economic disparities in mental illness suggest that “structural racism” contributes to social and environmental conditions that affect psychosis risk.
“Black and Latino people suffer disproportionately from psychosis risk factors, at the neighborhood level and at the individual level, in large part as a result of structural racism,” study investigator Deidre M. Anglin, PhD, associate professor, department of psychology, City College of New York (N.Y.), told reporters attending a press briefing.
The social environment, which, for minorities, involves disadvantage and discrimination, may account for this increased psychosis risk, perhaps even more so than genetics, she said. Structural racism “is a critical public health threat,” Dr. Anglin added.
The findings were presented at the virtual American Psychiatric Association annual meeting and were simultaneously published online May 3 in The American Journal of Psychiatry.
Perpetual disadvantage
Dr. Anglin and colleagues examined U.S.-based evidence connecting characteristics of social environments with outcomes across the psychosis continuum – from psychotic experiences to schizophrenia.
Citing numerous studies, the researchers highlighted three key areas that reflect social and environmental conditions that may affect psychosis risk, and that disproportionately affect minorities. These were neighborhood factors, trauma in a U.S. context, and racial disparities during the prenatal and perinatal periods.
The data that were related to neighborhoods revealed “just how much racism has historically structured U.S. neighborhoods in ways that generationally perpetuate disadvantage for racially minoritized communities,” said Dr. Anglin.
“This happens through inequitable access to resources, such as health care, clean air, education, [and] employment, but also in terms of disproportionate exposure to environmental toxins and stressors,” she said.
These neighborhood factors are associated with cumulative stress that may be linked to heightened risk for psychosis, the investigators noted.
U.S. studies show that rates of adverse childhood experiences, such as abuse and emotional and physical neglect, are higher among racial and ethnic minorities.
Police victimization and gun violence disproportionately affect racial minorities and create what the investigators call “a unique type of collective trauma” in the United States. They note that Black men have a 1 in 1,000 chance of being victims of lethal force by police over their lifetimes. By comparison, White men have a 39 in 100,000 chance.
One study of a diverse sample from four large U.S. urban centers showed that those who self-reported different types of police victimization were more likely to report psychotic experiences. Another study showed that greater exposure to gun violence fatalities, regardless of police involvement, was positively associated with psychotic experiences.
Obstetric complications
A variety of obstetric complications, including infection, maternal inflammation, and stress, have been associated with increased risk for psychotic disorders in U.S. samples.
“What we saw emerge from the literature is that Black women in the U.S. are at substantially increased risk for many of these obstetrical complications compared to White women, and this is not necessarily explained by socioeconomic status,” said Dr. Anglin.
Neighborhood- and individual-level factors appear to affect the disparity in these outcomes. A recent study revealed that exposure to environmental contaminants such as air pollution is associated with higher rates of preterm birth and low birth weight differentially in Black mothers compared with other mothers, “possibly as a result of an interaction between prenatal stress and contaminants,” the investigators noted.
Research also indicates that Black women are more likely to have lower levels of cortisol during the second trimester of pregnancy compared with women of other racial and ethnic groups. Cortisol is essential for fetal growth. Evidence links lower cortisol levels in later stages of pregnancy with decreased fetal growth in individuals who develop schizophrenia.
, compared with White women of the same socioeconomic status.
Such findings “highlight a complex picture” involving maternal cortisol levels and other stress biomarkers, “potentially leading to poor birth outcomes and subsequent risk for psychotic disorders in adulthood,” the investigators noted.
The researchers call for the dismantling of structural racism and the social policies and norms it shapes. They also recommend changes in health care policy and in the approach to early intervention for psychosis among Black and other racially-minoritized groups.
“Altogether, the current evidence suggests the need to identify, address, and tackle the social determinants deeply ingrained in U.S. society, in tandem with empowering the most marginalized communities,” the researchers wrote.
“We recommend that the field of psychiatry devote considerably more effort to addressing structural racism and social determinants of psychosis in funding priorities, training, and intervention development,” they added.
Dr. Anglin suggests that mental health providers use what she called a “cultural formulation interview” that takes a person’s environmental and social context into consideration. Studies show that incorporating this into clinical practice helps reduce misdiagnosis of mental illness in Black populations, she said.
Call to action
Commenting on the findings in an interview, Ned H. Kalin, MD, editor of The American Journal of Psychiatry and professor and chair of the department of psychiatry, University of Wisconsin, Madison, said the study was well done and serves as a “call to action” to address the impact of structural racism on mental health issues and psychiatric diseases.
The article highlights the need for “collecting better data” on structural racism, said Dr. Kalin. “We know it’s a big issue, but we can’t even quantitate it, so we need some fundamental measures to use as a benchmark as we move forward, as we try to make change.”
He noted that racism “is so embedded in one’s experience and in our society that we sort of don’t even think about it as a trauma.”
In psychiatry, for example, trauma is often thought of as a loss or a traumatic event. “We don’t typically think of trauma as an experience that pervades one’s entire life,” but that needs to change, he said. “At the individual level and in the doctor’s office, being sensitive to and aware of these issues is absolutely critical.”
Dr. Anglin and Dr. Kalin have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Dr. Topol talks: COVID-19 variants are innocent until proven guilty
Editor in Chief of this news organization Eric Topol, MD, founder and director of the Scripps Research Translational Institute in La Jolla, Calif., and professor of molecular medicine, has been closely following COVID-19 data since the pandemic began. He spoke with writer Miriam E. Tucker about the latest on SARS-CoV-2 variants and their impact on vaccine efficacy. The conversation serves as a follow-up to his April 13, 2021, New York Times opinion piece, in which he advised readers that “all variants are innocent until proven guilty.”
You have expressed overall confidence in the efficacy of the vaccines thus far despite the emergence of variants, with some caveats. How do you see the current situation?
The Centers for Disease Control and Prevention has designated five “variants of concern,” but only three of them are real concerns – B.1.1.7, first detected in the United Kingdom; P.1, in Brazil and Japan; and B.1.351, in South Africa. Yet, all three are susceptible to our current vaccines.
The U.K. B.1.1.7 is the worst variant of all because it’s hypertransmissible, so I call it a “superspreader strain.” It also causes more severe illness independent of the spread, so it’s a double whammy. It’s clear that it also causes more deaths. The only arguable point is whether it’s 30% or 50% more deaths, but regardless, it’s more lethal and more transmissible.
The B.1.1.7 is going to be the dominant strain worldwide. It could develop new mutations within it that could come back to haunt us. We must keep watch.
But for now, it’s fully responsive to all the vaccines, which is great because if we didn’t have them, we wouldn’t have gotten through this U.S. pandemic like we have, and neither would Israel and the United Kingdom and other countries that have been able to get out of the crisis. We met the enemy and put it in check.
As for the South Africa variant of concern, B.1.351, we just got some encouraging news showing that it›s very responsive to the Pfizer/BioNTech mRNA vaccine in large numbers of people. The study was conducted in Qatar following that country’s mass immunization campaign in which a total of 385,853 people had received at least one vaccine dose and 265,410 had completed the two doses as of March 31, 2021.
At 2 weeks past the second dose, the vaccine was 75% effective at preventing any documented infection with the B.1.351 variant and 89.5% effective against B.1.1.7. The vaccine’s effectiveness against severe, critical, or fatal COVID-19 was greater than 97.4% for all circulating strains in Qatar, where B.1.1.7 and B.1.351 are most prominent.
We also know that B.1.351 is very responsive to the Johnson & Johnson vaccine and the Novavax [vaccine in development] to a lesser degree. It is the most immune-evading variant we’ve seen thus far, with the highest likelihood of providing some vaccine resistance, yet not enough to interfere with vaccination campaigns. So that’s great news.
The caveats here are that you definitely need two doses of the mRNA vaccines to combat the B.1.351 variant. Also, the AstraZeneca vaccine failed to prevent it in South Africa. However, that study was hard to judge because it was underpowered for number of people with mild infections. So, it didn’t look as if it had any efficacy, but maybe it would if tested in a real trial.
The P.1 (Brazil) variant is the second-highest concern after B.1.1.7 because it’s the only one in the United States that’s still headed up. It seems to be competing a bit with B.1.1.7 here. We know it was associated with the crisis in Brazil, in Chile, and some other South American countries. It has some immune escape, but not as bad as B.1.351. It also appears to have somewhat greater transmissibility but not as much as B.1.1.7.
With P.1, we just don’t know enough yet. It was difficult to assess in Brazil because they were in the midst of a catastrophe – like India is now – and you don’t know how much of it is dragged by the catastrophe vs driving it.
We have to respond to P.1 carefully. There are some good data that it does respond to the Chinese vaccine Sinovac and the AstraZeneca vaccine, and it appears to respond to the others as well, based on serum studies. So it doesn’t look like vaccines will be the worry with this variant. Rather, it could be competing with B.1.1.7 and could lead to breakthrough infections in vaccinated people or reinfections in unvaccinated people who had COVID-19. We need several more weeks to sort it out.
Although the B.1.427 and B.1.429 variants initially seen in California remain on the CDC’s concern list, I’m not worried about them.
You mentioned the current COVID-19 crisis in India, where a new variant has been described as a “double mutant,” but on Twitter you called it a “scariant.” Why?
First of all, the B.1.617 variant isn’t a double mutant. It has 15 mutations. It’s a stupid term, focusing on two mutations which largely have been put aside as to concern. One of them is the L452R, which is the same as one of the California variants, and that hasn’t proved to be particularly serious or concerning. The other is the 484Q, and it’s not clear whether that has any function.
The B.1.617 is not the driver of the catastrophe in India. It may be contributing a small amount, but it has been overhyped as the double mutant that’s causing it all. Adding to that are what I call “scariant” headlines here in the United States when a few cases of that variant have been seen.
I coined the term scariant in early February because it was a pretty clear trend. People don’t know what variants are. They know a little bit about mutations but not variants, and they’re scared. A few variants are concerning, but we keep learning more and more things to decrease the concern. That’s why I wrote the New York Times op-ed, to try to provide some reassurance, since there’s such paranoia.
Do you think booster vaccinations will be necessary? If so, will those be of the original vaccines or new ones that incorporate the variants?
As we go forward, there’s still potential for new variants that we haven’t seen yet that combine the worst of all features – transmissibility and immune evasion – especially since we have a world where COVID-19 is unchecked. So, we’re not out of it yet, but at least for the moment, we have vaccines that are capable of protecting against all variants.
In most people, the immune response against SARS-CoV-2 is very durable and strong and may well last for years. With the most closely related SARS-CoV-1, people still had immune responses up to 18 years later. However, some people will have less robust vaccine responses, including the elderly and the immunocompromised. If they don’t have great responses to the vaccine to start with, over time they’re likely to become more vulnerable, especially if they’re exposed to the variants with some degree of immune evasion.
I think we need to study these individuals post vaccination. A lot of people fit into those categories, including seniors, people being treated for cancer or autoimmune conditions, or post organ transplant. We could set up a prospective study to see whether they develop symptomatic COVID-19 and if so, from what – the original strain, B.1.1.7, or the newer variants.
That’s where I think booster shots may be needed. They may not be necessary across the board, but perhaps just in these special subgroups.
All of the current vaccines can be tweaked to include new variants, but the need for that is uncertain as of now. Moderna is working on a so-called bivalent vaccine that includes the original SARS-CoV-2 strain plus the B.1.351 variant, but it isn’t clear that that’s going to be necessary.
Currently, at least 200 COVID-19 vaccines are in development. There will be vaccines you can inhale, room temperature mRNA vaccines, and potentially even oral vaccines.
In the near future, Novavax is close, and there will likely be a two-dose Johnson & Johnson version that has the same potency as the mRNA vaccines. There are a lot of moving parts here.
There may be a step down in efficacy from mRNA to the others, though, and that shouldn’t be discounted. All of the available vaccines so far protect very well against severe disease and death, but some are less effective against mild to moderate infections, which may then lead to long COVID. We don’t yet know whether those who get mild infection post vaccination can still get long COVID.
What do you think it will take to achieve herd immunity?
I prefer the term “containment.” It’s quantitative. If you get to an infection rate of less than 1 in 100,000 people, as they’ve done in Israel, with 0.8 per 100,000, then you have the virus in check, and there will be very little spread when it’s at that controlled rate, with no outbreaks. The United States is currently at about 15 per 100,000. California is at 4. That still has to get lower.
It will be a challenge to get to President Biden’s goal of having 70% of U.S. adults given at least one dose by July 4. We’re now at about 57%. To get that next 13% of adults is going to take an all-out effort: mobile units, going to homes, making it ultraconvenient, education for people with safety concerns, incentivization, and days off.
We also need to get employers, universities, and health systems to get to the mandatory level. We haven’t done that yet. Some universities have mandated it for students, faculty, and staff. We need it in more health care systems. Right now, we only have a couple. We mandate flu shots, and flu is nothing, compared with COVID-19. And the COVID-19 vaccine is far more efficacious – flu shots are 40% efficacious, while these are 95%. COVID-19 is a tenfold more lethal and serious disease, and much more spreadable.
People are using the lack of full licensure by the Food and Drug Administration – as opposed to emergency use authorization – as an excuse not to get vaccinated. A biologics license application takes time to approve. Meanwhile, we have hundreds of millions of doses that have been well tolerated and incredibly effective.
Another aspect to consider regarding containment is that about 110 million Americans have already had COVID-19, even though only about 30 million cases have been confirmed. Most of these people have immune protection, although it’s not as good as if they have one vaccine dose. But they have enough protection to be part of the story here of the wall against COVID-19 and will help us get through this.
That’s a silver lining of having an unchecked epidemic for the entire year of 2020. The good part is that’s helping to get us to achieve an incredible level of containment when we haven’t even been close. Right now, we’re as good as the country has been in the pandemic, but we still have a long gap to get down to that 1 per 100,000. That’s what we should be working toward, and we can get there.
A version of this article first appeared on Medscape.com.
Editor in Chief of this news organization Eric Topol, MD, founder and director of the Scripps Research Translational Institute in La Jolla, Calif., and professor of molecular medicine, has been closely following COVID-19 data since the pandemic began. He spoke with writer Miriam E. Tucker about the latest on SARS-CoV-2 variants and their impact on vaccine efficacy. The conversation serves as a follow-up to his April 13, 2021, New York Times opinion piece, in which he advised readers that “all variants are innocent until proven guilty.”
You have expressed overall confidence in the efficacy of the vaccines thus far despite the emergence of variants, with some caveats. How do you see the current situation?
The Centers for Disease Control and Prevention has designated five “variants of concern,” but only three of them are real concerns – B.1.1.7, first detected in the United Kingdom; P.1, in Brazil and Japan; and B.1.351, in South Africa. Yet, all three are susceptible to our current vaccines.
The U.K. B.1.1.7 is the worst variant of all because it’s hypertransmissible, so I call it a “superspreader strain.” It also causes more severe illness independent of the spread, so it’s a double whammy. It’s clear that it also causes more deaths. The only arguable point is whether it’s 30% or 50% more deaths, but regardless, it’s more lethal and more transmissible.
The B.1.1.7 is going to be the dominant strain worldwide. It could develop new mutations within it that could come back to haunt us. We must keep watch.
But for now, it’s fully responsive to all the vaccines, which is great because if we didn’t have them, we wouldn’t have gotten through this U.S. pandemic like we have, and neither would Israel and the United Kingdom and other countries that have been able to get out of the crisis. We met the enemy and put it in check.
As for the South Africa variant of concern, B.1.351, we just got some encouraging news showing that it›s very responsive to the Pfizer/BioNTech mRNA vaccine in large numbers of people. The study was conducted in Qatar following that country’s mass immunization campaign in which a total of 385,853 people had received at least one vaccine dose and 265,410 had completed the two doses as of March 31, 2021.
At 2 weeks past the second dose, the vaccine was 75% effective at preventing any documented infection with the B.1.351 variant and 89.5% effective against B.1.1.7. The vaccine’s effectiveness against severe, critical, or fatal COVID-19 was greater than 97.4% for all circulating strains in Qatar, where B.1.1.7 and B.1.351 are most prominent.
We also know that B.1.351 is very responsive to the Johnson & Johnson vaccine and the Novavax [vaccine in development] to a lesser degree. It is the most immune-evading variant we’ve seen thus far, with the highest likelihood of providing some vaccine resistance, yet not enough to interfere with vaccination campaigns. So that’s great news.
The caveats here are that you definitely need two doses of the mRNA vaccines to combat the B.1.351 variant. Also, the AstraZeneca vaccine failed to prevent it in South Africa. However, that study was hard to judge because it was underpowered for number of people with mild infections. So, it didn’t look as if it had any efficacy, but maybe it would if tested in a real trial.
The P.1 (Brazil) variant is the second-highest concern after B.1.1.7 because it’s the only one in the United States that’s still headed up. It seems to be competing a bit with B.1.1.7 here. We know it was associated with the crisis in Brazil, in Chile, and some other South American countries. It has some immune escape, but not as bad as B.1.351. It also appears to have somewhat greater transmissibility but not as much as B.1.1.7.
With P.1, we just don’t know enough yet. It was difficult to assess in Brazil because they were in the midst of a catastrophe – like India is now – and you don’t know how much of it is dragged by the catastrophe vs driving it.
We have to respond to P.1 carefully. There are some good data that it does respond to the Chinese vaccine Sinovac and the AstraZeneca vaccine, and it appears to respond to the others as well, based on serum studies. So it doesn’t look like vaccines will be the worry with this variant. Rather, it could be competing with B.1.1.7 and could lead to breakthrough infections in vaccinated people or reinfections in unvaccinated people who had COVID-19. We need several more weeks to sort it out.
Although the B.1.427 and B.1.429 variants initially seen in California remain on the CDC’s concern list, I’m not worried about them.
You mentioned the current COVID-19 crisis in India, where a new variant has been described as a “double mutant,” but on Twitter you called it a “scariant.” Why?
First of all, the B.1.617 variant isn’t a double mutant. It has 15 mutations. It’s a stupid term, focusing on two mutations which largely have been put aside as to concern. One of them is the L452R, which is the same as one of the California variants, and that hasn’t proved to be particularly serious or concerning. The other is the 484Q, and it’s not clear whether that has any function.
The B.1.617 is not the driver of the catastrophe in India. It may be contributing a small amount, but it has been overhyped as the double mutant that’s causing it all. Adding to that are what I call “scariant” headlines here in the United States when a few cases of that variant have been seen.
I coined the term scariant in early February because it was a pretty clear trend. People don’t know what variants are. They know a little bit about mutations but not variants, and they’re scared. A few variants are concerning, but we keep learning more and more things to decrease the concern. That’s why I wrote the New York Times op-ed, to try to provide some reassurance, since there’s such paranoia.
Do you think booster vaccinations will be necessary? If so, will those be of the original vaccines or new ones that incorporate the variants?
As we go forward, there’s still potential for new variants that we haven’t seen yet that combine the worst of all features – transmissibility and immune evasion – especially since we have a world where COVID-19 is unchecked. So, we’re not out of it yet, but at least for the moment, we have vaccines that are capable of protecting against all variants.
In most people, the immune response against SARS-CoV-2 is very durable and strong and may well last for years. With the most closely related SARS-CoV-1, people still had immune responses up to 18 years later. However, some people will have less robust vaccine responses, including the elderly and the immunocompromised. If they don’t have great responses to the vaccine to start with, over time they’re likely to become more vulnerable, especially if they’re exposed to the variants with some degree of immune evasion.
I think we need to study these individuals post vaccination. A lot of people fit into those categories, including seniors, people being treated for cancer or autoimmune conditions, or post organ transplant. We could set up a prospective study to see whether they develop symptomatic COVID-19 and if so, from what – the original strain, B.1.1.7, or the newer variants.
That’s where I think booster shots may be needed. They may not be necessary across the board, but perhaps just in these special subgroups.
All of the current vaccines can be tweaked to include new variants, but the need for that is uncertain as of now. Moderna is working on a so-called bivalent vaccine that includes the original SARS-CoV-2 strain plus the B.1.351 variant, but it isn’t clear that that’s going to be necessary.
Currently, at least 200 COVID-19 vaccines are in development. There will be vaccines you can inhale, room temperature mRNA vaccines, and potentially even oral vaccines.
In the near future, Novavax is close, and there will likely be a two-dose Johnson & Johnson version that has the same potency as the mRNA vaccines. There are a lot of moving parts here.
There may be a step down in efficacy from mRNA to the others, though, and that shouldn’t be discounted. All of the available vaccines so far protect very well against severe disease and death, but some are less effective against mild to moderate infections, which may then lead to long COVID. We don’t yet know whether those who get mild infection post vaccination can still get long COVID.
What do you think it will take to achieve herd immunity?
I prefer the term “containment.” It’s quantitative. If you get to an infection rate of less than 1 in 100,000 people, as they’ve done in Israel, with 0.8 per 100,000, then you have the virus in check, and there will be very little spread when it’s at that controlled rate, with no outbreaks. The United States is currently at about 15 per 100,000. California is at 4. That still has to get lower.
It will be a challenge to get to President Biden’s goal of having 70% of U.S. adults given at least one dose by July 4. We’re now at about 57%. To get that next 13% of adults is going to take an all-out effort: mobile units, going to homes, making it ultraconvenient, education for people with safety concerns, incentivization, and days off.
We also need to get employers, universities, and health systems to get to the mandatory level. We haven’t done that yet. Some universities have mandated it for students, faculty, and staff. We need it in more health care systems. Right now, we only have a couple. We mandate flu shots, and flu is nothing, compared with COVID-19. And the COVID-19 vaccine is far more efficacious – flu shots are 40% efficacious, while these are 95%. COVID-19 is a tenfold more lethal and serious disease, and much more spreadable.
People are using the lack of full licensure by the Food and Drug Administration – as opposed to emergency use authorization – as an excuse not to get vaccinated. A biologics license application takes time to approve. Meanwhile, we have hundreds of millions of doses that have been well tolerated and incredibly effective.
Another aspect to consider regarding containment is that about 110 million Americans have already had COVID-19, even though only about 30 million cases have been confirmed. Most of these people have immune protection, although it’s not as good as if they have one vaccine dose. But they have enough protection to be part of the story here of the wall against COVID-19 and will help us get through this.
That’s a silver lining of having an unchecked epidemic for the entire year of 2020. The good part is that’s helping to get us to achieve an incredible level of containment when we haven’t even been close. Right now, we’re as good as the country has been in the pandemic, but we still have a long gap to get down to that 1 per 100,000. That’s what we should be working toward, and we can get there.
A version of this article first appeared on Medscape.com.
Editor in Chief of this news organization Eric Topol, MD, founder and director of the Scripps Research Translational Institute in La Jolla, Calif., and professor of molecular medicine, has been closely following COVID-19 data since the pandemic began. He spoke with writer Miriam E. Tucker about the latest on SARS-CoV-2 variants and their impact on vaccine efficacy. The conversation serves as a follow-up to his April 13, 2021, New York Times opinion piece, in which he advised readers that “all variants are innocent until proven guilty.”
You have expressed overall confidence in the efficacy of the vaccines thus far despite the emergence of variants, with some caveats. How do you see the current situation?
The Centers for Disease Control and Prevention has designated five “variants of concern,” but only three of them are real concerns – B.1.1.7, first detected in the United Kingdom; P.1, in Brazil and Japan; and B.1.351, in South Africa. Yet, all three are susceptible to our current vaccines.
The U.K. B.1.1.7 is the worst variant of all because it’s hypertransmissible, so I call it a “superspreader strain.” It also causes more severe illness independent of the spread, so it’s a double whammy. It’s clear that it also causes more deaths. The only arguable point is whether it’s 30% or 50% more deaths, but regardless, it’s more lethal and more transmissible.
The B.1.1.7 is going to be the dominant strain worldwide. It could develop new mutations within it that could come back to haunt us. We must keep watch.
But for now, it’s fully responsive to all the vaccines, which is great because if we didn’t have them, we wouldn’t have gotten through this U.S. pandemic like we have, and neither would Israel and the United Kingdom and other countries that have been able to get out of the crisis. We met the enemy and put it in check.
As for the South Africa variant of concern, B.1.351, we just got some encouraging news showing that it›s very responsive to the Pfizer/BioNTech mRNA vaccine in large numbers of people. The study was conducted in Qatar following that country’s mass immunization campaign in which a total of 385,853 people had received at least one vaccine dose and 265,410 had completed the two doses as of March 31, 2021.
At 2 weeks past the second dose, the vaccine was 75% effective at preventing any documented infection with the B.1.351 variant and 89.5% effective against B.1.1.7. The vaccine’s effectiveness against severe, critical, or fatal COVID-19 was greater than 97.4% for all circulating strains in Qatar, where B.1.1.7 and B.1.351 are most prominent.
We also know that B.1.351 is very responsive to the Johnson & Johnson vaccine and the Novavax [vaccine in development] to a lesser degree. It is the most immune-evading variant we’ve seen thus far, with the highest likelihood of providing some vaccine resistance, yet not enough to interfere with vaccination campaigns. So that’s great news.
The caveats here are that you definitely need two doses of the mRNA vaccines to combat the B.1.351 variant. Also, the AstraZeneca vaccine failed to prevent it in South Africa. However, that study was hard to judge because it was underpowered for number of people with mild infections. So, it didn’t look as if it had any efficacy, but maybe it would if tested in a real trial.
The P.1 (Brazil) variant is the second-highest concern after B.1.1.7 because it’s the only one in the United States that’s still headed up. It seems to be competing a bit with B.1.1.7 here. We know it was associated with the crisis in Brazil, in Chile, and some other South American countries. It has some immune escape, but not as bad as B.1.351. It also appears to have somewhat greater transmissibility but not as much as B.1.1.7.
With P.1, we just don’t know enough yet. It was difficult to assess in Brazil because they were in the midst of a catastrophe – like India is now – and you don’t know how much of it is dragged by the catastrophe vs driving it.
We have to respond to P.1 carefully. There are some good data that it does respond to the Chinese vaccine Sinovac and the AstraZeneca vaccine, and it appears to respond to the others as well, based on serum studies. So it doesn’t look like vaccines will be the worry with this variant. Rather, it could be competing with B.1.1.7 and could lead to breakthrough infections in vaccinated people or reinfections in unvaccinated people who had COVID-19. We need several more weeks to sort it out.
Although the B.1.427 and B.1.429 variants initially seen in California remain on the CDC’s concern list, I’m not worried about them.
You mentioned the current COVID-19 crisis in India, where a new variant has been described as a “double mutant,” but on Twitter you called it a “scariant.” Why?
First of all, the B.1.617 variant isn’t a double mutant. It has 15 mutations. It’s a stupid term, focusing on two mutations which largely have been put aside as to concern. One of them is the L452R, which is the same as one of the California variants, and that hasn’t proved to be particularly serious or concerning. The other is the 484Q, and it’s not clear whether that has any function.
The B.1.617 is not the driver of the catastrophe in India. It may be contributing a small amount, but it has been overhyped as the double mutant that’s causing it all. Adding to that are what I call “scariant” headlines here in the United States when a few cases of that variant have been seen.
I coined the term scariant in early February because it was a pretty clear trend. People don’t know what variants are. They know a little bit about mutations but not variants, and they’re scared. A few variants are concerning, but we keep learning more and more things to decrease the concern. That’s why I wrote the New York Times op-ed, to try to provide some reassurance, since there’s such paranoia.
Do you think booster vaccinations will be necessary? If so, will those be of the original vaccines or new ones that incorporate the variants?
As we go forward, there’s still potential for new variants that we haven’t seen yet that combine the worst of all features – transmissibility and immune evasion – especially since we have a world where COVID-19 is unchecked. So, we’re not out of it yet, but at least for the moment, we have vaccines that are capable of protecting against all variants.
In most people, the immune response against SARS-CoV-2 is very durable and strong and may well last for years. With the most closely related SARS-CoV-1, people still had immune responses up to 18 years later. However, some people will have less robust vaccine responses, including the elderly and the immunocompromised. If they don’t have great responses to the vaccine to start with, over time they’re likely to become more vulnerable, especially if they’re exposed to the variants with some degree of immune evasion.
I think we need to study these individuals post vaccination. A lot of people fit into those categories, including seniors, people being treated for cancer or autoimmune conditions, or post organ transplant. We could set up a prospective study to see whether they develop symptomatic COVID-19 and if so, from what – the original strain, B.1.1.7, or the newer variants.
That’s where I think booster shots may be needed. They may not be necessary across the board, but perhaps just in these special subgroups.
All of the current vaccines can be tweaked to include new variants, but the need for that is uncertain as of now. Moderna is working on a so-called bivalent vaccine that includes the original SARS-CoV-2 strain plus the B.1.351 variant, but it isn’t clear that that’s going to be necessary.
Currently, at least 200 COVID-19 vaccines are in development. There will be vaccines you can inhale, room temperature mRNA vaccines, and potentially even oral vaccines.
In the near future, Novavax is close, and there will likely be a two-dose Johnson & Johnson version that has the same potency as the mRNA vaccines. There are a lot of moving parts here.
There may be a step down in efficacy from mRNA to the others, though, and that shouldn’t be discounted. All of the available vaccines so far protect very well against severe disease and death, but some are less effective against mild to moderate infections, which may then lead to long COVID. We don’t yet know whether those who get mild infection post vaccination can still get long COVID.
What do you think it will take to achieve herd immunity?
I prefer the term “containment.” It’s quantitative. If you get to an infection rate of less than 1 in 100,000 people, as they’ve done in Israel, with 0.8 per 100,000, then you have the virus in check, and there will be very little spread when it’s at that controlled rate, with no outbreaks. The United States is currently at about 15 per 100,000. California is at 4. That still has to get lower.
It will be a challenge to get to President Biden’s goal of having 70% of U.S. adults given at least one dose by July 4. We’re now at about 57%. To get that next 13% of adults is going to take an all-out effort: mobile units, going to homes, making it ultraconvenient, education for people with safety concerns, incentivization, and days off.
We also need to get employers, universities, and health systems to get to the mandatory level. We haven’t done that yet. Some universities have mandated it for students, faculty, and staff. We need it in more health care systems. Right now, we only have a couple. We mandate flu shots, and flu is nothing, compared with COVID-19. And the COVID-19 vaccine is far more efficacious – flu shots are 40% efficacious, while these are 95%. COVID-19 is a tenfold more lethal and serious disease, and much more spreadable.
People are using the lack of full licensure by the Food and Drug Administration – as opposed to emergency use authorization – as an excuse not to get vaccinated. A biologics license application takes time to approve. Meanwhile, we have hundreds of millions of doses that have been well tolerated and incredibly effective.
Another aspect to consider regarding containment is that about 110 million Americans have already had COVID-19, even though only about 30 million cases have been confirmed. Most of these people have immune protection, although it’s not as good as if they have one vaccine dose. But they have enough protection to be part of the story here of the wall against COVID-19 and will help us get through this.
That’s a silver lining of having an unchecked epidemic for the entire year of 2020. The good part is that’s helping to get us to achieve an incredible level of containment when we haven’t even been close. Right now, we’re as good as the country has been in the pandemic, but we still have a long gap to get down to that 1 per 100,000. That’s what we should be working toward, and we can get there.
A version of this article first appeared on Medscape.com.
Infective endocarditis with stroke after TAVR has ‘dismal’ prognosis
Patients who suffer a stroke during hospitalization for infective endocarditis (IE) after transcatheter aortic valve replacement (TAVR) have a dismal prognosis, with more than half dying during the index hospitalization and two-thirds within the first year, a new study shows.
The study – the first to evaluate stroke as an IE-related complication following TAVR in a large multicenter cohort – is published in the May 11 issue of the Journal of the American College of Cardiology.
The authors, led by David del Val, MD, Quebec Heart & Lung Institute, Quebec City, explain that IE after TAVR is a rare but serious complication associated with a high mortality rate. Neurologic events, especially stroke, remain one of the most common and potentially disabling IE-related complications, but until now, no study has attempted to evaluate the predictors of stroke and outcomes in patients with IE following TAVR.
For the current study, the authors analyzed data from the Infectious Endocarditis after TAVR International Registry, including 569 patients who developed definite IE following TAVR from 59 centers in 11 countries.
Patients who experienced a stroke during IE admission were compared with patients who did not have a stroke.
Results showed that 57 patients (10%) had a stroke during IE hospitalization, with no differences in the causative microorganism between groups. Stroke patients had higher rates of acute renal failure, systemic embolization, and persistent bacteremia.
Factors associated with a higher risk for stroke during the index IE hospitalization included stroke before IE, moderate or higher residual aortic regurgitation after TAVR, balloon-expandable valves, IE within 30 days after TAVR, and vegetation size greater than 8 mm.
The stroke rate was 3.1% in patients with none of these risk factors; 6.1% with one risk factor; 13.1% with two risk factors; 28.9% with three risk factors, and 60% with four risk factors.
“The presence of such factors (particularly in combination) may be considered for determining an earlier and more aggressive (medical or surgical) treatment in these patients,” the researchers say.
IE patients with stroke had higher rates of in-hospital mortality (54.4% vs. 28.7%) and overall mortality at 1 year (66.3% vs. 45.6%).
Surgery rates were low (25%) even in the presence of stroke and failed to improve outcomes in this population.
Noting that consensus guidelines for managing patients with IE recommend surgery along with antibiotic treatment for patients developing systemic embolism, particularly stroke, the researchers say their findings suggest that such surgery recommendations may not be extrapolated to TAVR-IE patients, and specific guidelines are warranted for this particular population.
Furthermore, the possibility of early surgery in those patients with factors increasing the risk for stroke should be evaluated in future studies.
The authors note that TAVR has revolutionized the treatment of aortic stenosis and is currently moving toward less complex and younger patients with lower surgical risk. Despite the relatively low incidence of IE after TAVR, the number of procedures is expected to grow exponentially, increasing the number of patients at risk of developing this life-threatening complication. Therefore, detailed knowledge of this disease and its complications is essential to improve outcomes.
They point out that the 10% rate of stroke found in this study is substantially lower, compared with the largest surgical prosthetic-valve infective endocarditis registries, but they suggest that the unique clinical profile of TAVR patients may lead to an underdiagnosis of stroke, with a high proportion of elderly patients who more frequently present with nonspecific symptoms.
They conclude that “IE post-TAVR is associated with a poor prognosis with high in-hospital and late mortality rates. Our study reveals that patients with IE after TAVR complicated by stroke showed an even worse prognosis.”
“The progressive implementation of advanced imaging modalities for early IE diagnosis, especially nuclear imaging, may translate into a better prognosis in coming years. Close attention should be paid to early recognition of stroke-associated factors to improve clinical outcomes,” they add.
In an accompanying editorial, Vuyisile Nkomo, MD, Daniel DeSimone, MD, and William Miranda, MD, Mayo Clinic, Rochester, Minn., say the current study “highlights the devastating consequences of IE after TAVR and the even worse consequences when IE was associated with stroke.”
This points to the critical importance of efforts to prevent IE with appropriate antibiotic prophylaxis and addressing potential sources of infection (for example, dental screening) before invasive cardiac procedures.
“Patient education is critical in regard to recognizing early signs and symptoms of IE. In particular, patients must be informed to obtain blood cultures with any episode of fever, as identification of bacteremia is critical in the diagnosis of IE,” the editorialists comment.
Endocarditis should also be suspected in afebrile patients with increasing transcatheter heart valve gradients or new or worsening regurgitation, they state.
Multimodality imaging is important for the early diagnosis of IE to facilitate prompt antibiotic treatment and potentially decrease the risk for IE complications, especially systemic embolization, they add.
“Despite the unequivocal advances in the safety and periprocedural complications of TAVR, IE with and without stroke in this TAVR population remains a dreadful complication,” they conclude.
Dr. Del Val was supported by a research grant from the Fundación Alfonso Martin Escudero. The editorialists have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Patients who suffer a stroke during hospitalization for infective endocarditis (IE) after transcatheter aortic valve replacement (TAVR) have a dismal prognosis, with more than half dying during the index hospitalization and two-thirds within the first year, a new study shows.
The study – the first to evaluate stroke as an IE-related complication following TAVR in a large multicenter cohort – is published in the May 11 issue of the Journal of the American College of Cardiology.
The authors, led by David del Val, MD, Quebec Heart & Lung Institute, Quebec City, explain that IE after TAVR is a rare but serious complication associated with a high mortality rate. Neurologic events, especially stroke, remain one of the most common and potentially disabling IE-related complications, but until now, no study has attempted to evaluate the predictors of stroke and outcomes in patients with IE following TAVR.
For the current study, the authors analyzed data from the Infectious Endocarditis after TAVR International Registry, including 569 patients who developed definite IE following TAVR from 59 centers in 11 countries.
Patients who experienced a stroke during IE admission were compared with patients who did not have a stroke.
Results showed that 57 patients (10%) had a stroke during IE hospitalization, with no differences in the causative microorganism between groups. Stroke patients had higher rates of acute renal failure, systemic embolization, and persistent bacteremia.
Factors associated with a higher risk for stroke during the index IE hospitalization included stroke before IE, moderate or higher residual aortic regurgitation after TAVR, balloon-expandable valves, IE within 30 days after TAVR, and vegetation size greater than 8 mm.
The stroke rate was 3.1% in patients with none of these risk factors; 6.1% with one risk factor; 13.1% with two risk factors; 28.9% with three risk factors, and 60% with four risk factors.
“The presence of such factors (particularly in combination) may be considered for determining an earlier and more aggressive (medical or surgical) treatment in these patients,” the researchers say.
IE patients with stroke had higher rates of in-hospital mortality (54.4% vs. 28.7%) and overall mortality at 1 year (66.3% vs. 45.6%).
Surgery rates were low (25%) even in the presence of stroke and failed to improve outcomes in this population.
Noting that consensus guidelines for managing patients with IE recommend surgery along with antibiotic treatment for patients developing systemic embolism, particularly stroke, the researchers say their findings suggest that such surgery recommendations may not be extrapolated to TAVR-IE patients, and specific guidelines are warranted for this particular population.
Furthermore, the possibility of early surgery in those patients with factors increasing the risk for stroke should be evaluated in future studies.
The authors note that TAVR has revolutionized the treatment of aortic stenosis and is currently moving toward less complex and younger patients with lower surgical risk. Despite the relatively low incidence of IE after TAVR, the number of procedures is expected to grow exponentially, increasing the number of patients at risk of developing this life-threatening complication. Therefore, detailed knowledge of this disease and its complications is essential to improve outcomes.
They point out that the 10% rate of stroke found in this study is substantially lower, compared with the largest surgical prosthetic-valve infective endocarditis registries, but they suggest that the unique clinical profile of TAVR patients may lead to an underdiagnosis of stroke, with a high proportion of elderly patients who more frequently present with nonspecific symptoms.
They conclude that “IE post-TAVR is associated with a poor prognosis with high in-hospital and late mortality rates. Our study reveals that patients with IE after TAVR complicated by stroke showed an even worse prognosis.”
“The progressive implementation of advanced imaging modalities for early IE diagnosis, especially nuclear imaging, may translate into a better prognosis in coming years. Close attention should be paid to early recognition of stroke-associated factors to improve clinical outcomes,” they add.
In an accompanying editorial, Vuyisile Nkomo, MD, Daniel DeSimone, MD, and William Miranda, MD, Mayo Clinic, Rochester, Minn., say the current study “highlights the devastating consequences of IE after TAVR and the even worse consequences when IE was associated with stroke.”
This points to the critical importance of efforts to prevent IE with appropriate antibiotic prophylaxis and addressing potential sources of infection (for example, dental screening) before invasive cardiac procedures.
“Patient education is critical in regard to recognizing early signs and symptoms of IE. In particular, patients must be informed to obtain blood cultures with any episode of fever, as identification of bacteremia is critical in the diagnosis of IE,” the editorialists comment.
Endocarditis should also be suspected in afebrile patients with increasing transcatheter heart valve gradients or new or worsening regurgitation, they state.
Multimodality imaging is important for the early diagnosis of IE to facilitate prompt antibiotic treatment and potentially decrease the risk for IE complications, especially systemic embolization, they add.
“Despite the unequivocal advances in the safety and periprocedural complications of TAVR, IE with and without stroke in this TAVR population remains a dreadful complication,” they conclude.
Dr. Del Val was supported by a research grant from the Fundación Alfonso Martin Escudero. The editorialists have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Patients who suffer a stroke during hospitalization for infective endocarditis (IE) after transcatheter aortic valve replacement (TAVR) have a dismal prognosis, with more than half dying during the index hospitalization and two-thirds within the first year, a new study shows.
The study – the first to evaluate stroke as an IE-related complication following TAVR in a large multicenter cohort – is published in the May 11 issue of the Journal of the American College of Cardiology.
The authors, led by David del Val, MD, Quebec Heart & Lung Institute, Quebec City, explain that IE after TAVR is a rare but serious complication associated with a high mortality rate. Neurologic events, especially stroke, remain one of the most common and potentially disabling IE-related complications, but until now, no study has attempted to evaluate the predictors of stroke and outcomes in patients with IE following TAVR.
For the current study, the authors analyzed data from the Infectious Endocarditis after TAVR International Registry, including 569 patients who developed definite IE following TAVR from 59 centers in 11 countries.
Patients who experienced a stroke during IE admission were compared with patients who did not have a stroke.
Results showed that 57 patients (10%) had a stroke during IE hospitalization, with no differences in the causative microorganism between groups. Stroke patients had higher rates of acute renal failure, systemic embolization, and persistent bacteremia.
Factors associated with a higher risk for stroke during the index IE hospitalization included stroke before IE, moderate or higher residual aortic regurgitation after TAVR, balloon-expandable valves, IE within 30 days after TAVR, and vegetation size greater than 8 mm.
The stroke rate was 3.1% in patients with none of these risk factors; 6.1% with one risk factor; 13.1% with two risk factors; 28.9% with three risk factors, and 60% with four risk factors.
“The presence of such factors (particularly in combination) may be considered for determining an earlier and more aggressive (medical or surgical) treatment in these patients,” the researchers say.
IE patients with stroke had higher rates of in-hospital mortality (54.4% vs. 28.7%) and overall mortality at 1 year (66.3% vs. 45.6%).
Surgery rates were low (25%) even in the presence of stroke and failed to improve outcomes in this population.
Noting that consensus guidelines for managing patients with IE recommend surgery along with antibiotic treatment for patients developing systemic embolism, particularly stroke, the researchers say their findings suggest that such surgery recommendations may not be extrapolated to TAVR-IE patients, and specific guidelines are warranted for this particular population.
Furthermore, the possibility of early surgery in those patients with factors increasing the risk for stroke should be evaluated in future studies.
The authors note that TAVR has revolutionized the treatment of aortic stenosis and is currently moving toward less complex and younger patients with lower surgical risk. Despite the relatively low incidence of IE after TAVR, the number of procedures is expected to grow exponentially, increasing the number of patients at risk of developing this life-threatening complication. Therefore, detailed knowledge of this disease and its complications is essential to improve outcomes.
They point out that the 10% rate of stroke found in this study is substantially lower, compared with the largest surgical prosthetic-valve infective endocarditis registries, but they suggest that the unique clinical profile of TAVR patients may lead to an underdiagnosis of stroke, with a high proportion of elderly patients who more frequently present with nonspecific symptoms.
They conclude that “IE post-TAVR is associated with a poor prognosis with high in-hospital and late mortality rates. Our study reveals that patients with IE after TAVR complicated by stroke showed an even worse prognosis.”
“The progressive implementation of advanced imaging modalities for early IE diagnosis, especially nuclear imaging, may translate into a better prognosis in coming years. Close attention should be paid to early recognition of stroke-associated factors to improve clinical outcomes,” they add.
In an accompanying editorial, Vuyisile Nkomo, MD, Daniel DeSimone, MD, and William Miranda, MD, Mayo Clinic, Rochester, Minn., say the current study “highlights the devastating consequences of IE after TAVR and the even worse consequences when IE was associated with stroke.”
This points to the critical importance of efforts to prevent IE with appropriate antibiotic prophylaxis and addressing potential sources of infection (for example, dental screening) before invasive cardiac procedures.
“Patient education is critical in regard to recognizing early signs and symptoms of IE. In particular, patients must be informed to obtain blood cultures with any episode of fever, as identification of bacteremia is critical in the diagnosis of IE,” the editorialists comment.
Endocarditis should also be suspected in afebrile patients with increasing transcatheter heart valve gradients or new or worsening regurgitation, they state.
Multimodality imaging is important for the early diagnosis of IE to facilitate prompt antibiotic treatment and potentially decrease the risk for IE complications, especially systemic embolization, they add.
“Despite the unequivocal advances in the safety and periprocedural complications of TAVR, IE with and without stroke in this TAVR population remains a dreadful complication,” they conclude.
Dr. Del Val was supported by a research grant from the Fundación Alfonso Martin Escudero. The editorialists have disclosed no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Trends in the management of pulmonary embolism
One of the newest trends in pulmonary embolism management is treatment of cancer associated venous thromboembolism (VTE) which encompasses deep vein thrombosis (DVT) and PE. Following the clinical management of cancer-associated venous thromboembolism in the hospital, direct oral anticoagulant therapy at discharge is your starting point, except in cases of intact luminal cancers, Scott Kaatz, DO, MSc, FACP, SFHM, said during SHM Converge, the annual conference of the Society of Hospital Medicine.
Dr. Kaatz, of the division of hospital medicine at Henry Ford Hospital, Detroit, based his remarks on emerging recommendations from leading medical societies on the topic, as well as a one-page algorithm from the Anticoagulation Forum that can be accessed at https://acforum-excellence.org/Resource-Center/resource_files/1638-2020-11-30-121425.pdf.
For the short-term treatment of VTE (3-6 months) for patients with active cancer, the American Society of Hematology guideline panel suggests direct oral anticoagulants, such as apixaban, edoxaban, or rivaroxaban, over low-molecular-weight heparin (LMWH) – a conditional recommendation based on low certainty in the evidence of effects.
Dr. Kaatz also discussed the latest recommendations regarding length of VTE treatment. After completion of primary treatment for patients with DVT and/or PE provoked by a chronic risk factor such as a surgery, pregnancy, or having a leg in a cast, the ASH guideline panel suggests indefinite antithrombotic therapy over stopping anticoagulation. “On the other hand, patients with DVT and/or PE provoked by a transient factor typically do not require antithrombotic therapy after completion of primary treatment,” said Dr. Kaatz, who is also a clinical professor of medicine at Wayne State University, Detroit.
After completion of primary treatment for patients with unprovoked DVT and/or PE, the ASH guideline panel suggests indefinite antithrombotic therapy over stopping anticoagulation. “The recommendation does not apply to patients who have a high risk for bleeding complications,” he noted.
Transient or reversible risk factors should be also considered in length of VTE treatment. For example, according to guidelines from the European Society of Cardiology, the estimated risk for long-term VTE recurrence is high (defined as greater than 8% per year) for patients with active cancer, for patients with one or more previous episodes of VTE in the absence of a major transient or reversible factor, and for those with antiphospholipid antibody syndrome.
Dr. Kaatz also highlighted recommendations for the acute treatment of intermediate risk, or submassive PE. The ESC guidelines state that if anticoagulation is initiated parenterally, LMWH or fondaparinux is recommended over unfractionated heparin (UFH) for most patients. “The reason for that is, one drug-use evaluation study found that, after 24 hours using UFH, only about 24% of patients had reached their therapeutic goal,” Dr. Kaatz said. Guidelines for intermediate risk patients from ASH recommend anticoagulation as your starting point, while thrombolysis is reasonable to consider for submassive PE and low risk for bleeding in selected younger patients or for patients at high risk for decompensation because of concomitant cardiopulmonary disease. “The bleeding rates get much higher in patients over age 65,” he said.
Another resource Dr. Kaatz mentioned is the Pulmonary Embolism Response Team (PERT) Consortium, which was developed after initial efforts of a multidisciplinary team of physicians at Massachusetts General Hospital. The first PERT sought to coordinate and expedite the treatment of pulmonary embolus with a team of physicians from a variety of specialties. In 2019 the PERT Consortium published guidelines on the diagnosis, treatment, and follow-up of acute PE. “It includes detailed algorithms that are a little different from the ASH and ESC guidelines,” Dr. Kaatz said.
Dr. Kaatz disclosed that he is a consultant for Janssen, Pfizer, Portola/Alexion, Bristol-Myers Squibb, Novartis, and CSL Behring. He has also received research funding from Janssen, Bristol-Myers Squibb, and Osmosis. He also holds board positions with the AC Forum and the National Blood Clot Alliance Medical and Scientific Advisory Board.
One of the newest trends in pulmonary embolism management is treatment of cancer associated venous thromboembolism (VTE) which encompasses deep vein thrombosis (DVT) and PE. Following the clinical management of cancer-associated venous thromboembolism in the hospital, direct oral anticoagulant therapy at discharge is your starting point, except in cases of intact luminal cancers, Scott Kaatz, DO, MSc, FACP, SFHM, said during SHM Converge, the annual conference of the Society of Hospital Medicine.
Dr. Kaatz, of the division of hospital medicine at Henry Ford Hospital, Detroit, based his remarks on emerging recommendations from leading medical societies on the topic, as well as a one-page algorithm from the Anticoagulation Forum that can be accessed at https://acforum-excellence.org/Resource-Center/resource_files/1638-2020-11-30-121425.pdf.
For the short-term treatment of VTE (3-6 months) for patients with active cancer, the American Society of Hematology guideline panel suggests direct oral anticoagulants, such as apixaban, edoxaban, or rivaroxaban, over low-molecular-weight heparin (LMWH) – a conditional recommendation based on low certainty in the evidence of effects.
Dr. Kaatz also discussed the latest recommendations regarding length of VTE treatment. After completion of primary treatment for patients with DVT and/or PE provoked by a chronic risk factor such as a surgery, pregnancy, or having a leg in a cast, the ASH guideline panel suggests indefinite antithrombotic therapy over stopping anticoagulation. “On the other hand, patients with DVT and/or PE provoked by a transient factor typically do not require antithrombotic therapy after completion of primary treatment,” said Dr. Kaatz, who is also a clinical professor of medicine at Wayne State University, Detroit.
After completion of primary treatment for patients with unprovoked DVT and/or PE, the ASH guideline panel suggests indefinite antithrombotic therapy over stopping anticoagulation. “The recommendation does not apply to patients who have a high risk for bleeding complications,” he noted.
Transient or reversible risk factors should be also considered in length of VTE treatment. For example, according to guidelines from the European Society of Cardiology, the estimated risk for long-term VTE recurrence is high (defined as greater than 8% per year) for patients with active cancer, for patients with one or more previous episodes of VTE in the absence of a major transient or reversible factor, and for those with antiphospholipid antibody syndrome.
Dr. Kaatz also highlighted recommendations for the acute treatment of intermediate risk, or submassive PE. The ESC guidelines state that if anticoagulation is initiated parenterally, LMWH or fondaparinux is recommended over unfractionated heparin (UFH) for most patients. “The reason for that is, one drug-use evaluation study found that, after 24 hours using UFH, only about 24% of patients had reached their therapeutic goal,” Dr. Kaatz said. Guidelines for intermediate risk patients from ASH recommend anticoagulation as your starting point, while thrombolysis is reasonable to consider for submassive PE and low risk for bleeding in selected younger patients or for patients at high risk for decompensation because of concomitant cardiopulmonary disease. “The bleeding rates get much higher in patients over age 65,” he said.
Another resource Dr. Kaatz mentioned is the Pulmonary Embolism Response Team (PERT) Consortium, which was developed after initial efforts of a multidisciplinary team of physicians at Massachusetts General Hospital. The first PERT sought to coordinate and expedite the treatment of pulmonary embolus with a team of physicians from a variety of specialties. In 2019 the PERT Consortium published guidelines on the diagnosis, treatment, and follow-up of acute PE. “It includes detailed algorithms that are a little different from the ASH and ESC guidelines,” Dr. Kaatz said.
Dr. Kaatz disclosed that he is a consultant for Janssen, Pfizer, Portola/Alexion, Bristol-Myers Squibb, Novartis, and CSL Behring. He has also received research funding from Janssen, Bristol-Myers Squibb, and Osmosis. He also holds board positions with the AC Forum and the National Blood Clot Alliance Medical and Scientific Advisory Board.
One of the newest trends in pulmonary embolism management is treatment of cancer associated venous thromboembolism (VTE) which encompasses deep vein thrombosis (DVT) and PE. Following the clinical management of cancer-associated venous thromboembolism in the hospital, direct oral anticoagulant therapy at discharge is your starting point, except in cases of intact luminal cancers, Scott Kaatz, DO, MSc, FACP, SFHM, said during SHM Converge, the annual conference of the Society of Hospital Medicine.
Dr. Kaatz, of the division of hospital medicine at Henry Ford Hospital, Detroit, based his remarks on emerging recommendations from leading medical societies on the topic, as well as a one-page algorithm from the Anticoagulation Forum that can be accessed at https://acforum-excellence.org/Resource-Center/resource_files/1638-2020-11-30-121425.pdf.
For the short-term treatment of VTE (3-6 months) for patients with active cancer, the American Society of Hematology guideline panel suggests direct oral anticoagulants, such as apixaban, edoxaban, or rivaroxaban, over low-molecular-weight heparin (LMWH) – a conditional recommendation based on low certainty in the evidence of effects.
Dr. Kaatz also discussed the latest recommendations regarding length of VTE treatment. After completion of primary treatment for patients with DVT and/or PE provoked by a chronic risk factor such as a surgery, pregnancy, or having a leg in a cast, the ASH guideline panel suggests indefinite antithrombotic therapy over stopping anticoagulation. “On the other hand, patients with DVT and/or PE provoked by a transient factor typically do not require antithrombotic therapy after completion of primary treatment,” said Dr. Kaatz, who is also a clinical professor of medicine at Wayne State University, Detroit.
After completion of primary treatment for patients with unprovoked DVT and/or PE, the ASH guideline panel suggests indefinite antithrombotic therapy over stopping anticoagulation. “The recommendation does not apply to patients who have a high risk for bleeding complications,” he noted.
Transient or reversible risk factors should be also considered in length of VTE treatment. For example, according to guidelines from the European Society of Cardiology, the estimated risk for long-term VTE recurrence is high (defined as greater than 8% per year) for patients with active cancer, for patients with one or more previous episodes of VTE in the absence of a major transient or reversible factor, and for those with antiphospholipid antibody syndrome.
Dr. Kaatz also highlighted recommendations for the acute treatment of intermediate risk, or submassive PE. The ESC guidelines state that if anticoagulation is initiated parenterally, LMWH or fondaparinux is recommended over unfractionated heparin (UFH) for most patients. “The reason for that is, one drug-use evaluation study found that, after 24 hours using UFH, only about 24% of patients had reached their therapeutic goal,” Dr. Kaatz said. Guidelines for intermediate risk patients from ASH recommend anticoagulation as your starting point, while thrombolysis is reasonable to consider for submassive PE and low risk for bleeding in selected younger patients or for patients at high risk for decompensation because of concomitant cardiopulmonary disease. “The bleeding rates get much higher in patients over age 65,” he said.
Another resource Dr. Kaatz mentioned is the Pulmonary Embolism Response Team (PERT) Consortium, which was developed after initial efforts of a multidisciplinary team of physicians at Massachusetts General Hospital. The first PERT sought to coordinate and expedite the treatment of pulmonary embolus with a team of physicians from a variety of specialties. In 2019 the PERT Consortium published guidelines on the diagnosis, treatment, and follow-up of acute PE. “It includes detailed algorithms that are a little different from the ASH and ESC guidelines,” Dr. Kaatz said.
Dr. Kaatz disclosed that he is a consultant for Janssen, Pfizer, Portola/Alexion, Bristol-Myers Squibb, Novartis, and CSL Behring. He has also received research funding from Janssen, Bristol-Myers Squibb, and Osmosis. He also holds board positions with the AC Forum and the National Blood Clot Alliance Medical and Scientific Advisory Board.
FROM SHM CONVERGE 2021