User login
FDA approves new formulation of deferasirox
The US Food and Drug Administration (FDA) has approved a new formulation of deferasirox known as Jadenu Sprinkle granules.
The granules are approved for use in the same population as Jadenu film-coated tablets.
Both formulations of Jadenu have accelerated approval from the FDA for the treatment of chronic iron overload due to blood transfusions in patients age 2 and older.
The formulations also have accelerated FDA approval for the treatment of chronic iron overload in patients age 10 and older with non-transfusion-dependent-thalassemia and a liver iron concentration of at least 5 mg Fe per gram of dry weight and a serum ferritin greater than 300 mcg/L.
Continued FDA approval for Jadenu in these indications may be contingent upon verification and description of clinical benefit in confirmatory trials.
Jadenu Sprinkle granules are intended for patients who have difficulty swallowing whole tablets. The granules can be sprinkled over soft foods (eg, yogurt or applesauce) prior to consumption.
Like Jadenu film-coated tablets, Jadenu Sprinkle granules are available in 3 strengths—90 mg, 180 mg, and 360 mg.
Both formulations of Jadenu are products of Novartis. For more details on Jadenu, see the prescribing information. ![]()
The US Food and Drug Administration (FDA) has approved a new formulation of deferasirox known as Jadenu Sprinkle granules.
The granules are approved for use in the same population as Jadenu film-coated tablets.
Both formulations of Jadenu have accelerated approval from the FDA for the treatment of chronic iron overload due to blood transfusions in patients age 2 and older.
The formulations also have accelerated FDA approval for the treatment of chronic iron overload in patients age 10 and older with non-transfusion-dependent-thalassemia and a liver iron concentration of at least 5 mg Fe per gram of dry weight and a serum ferritin greater than 300 mcg/L.
Continued FDA approval for Jadenu in these indications may be contingent upon verification and description of clinical benefit in confirmatory trials.
Jadenu Sprinkle granules are intended for patients who have difficulty swallowing whole tablets. The granules can be sprinkled over soft foods (eg, yogurt or applesauce) prior to consumption.
Like Jadenu film-coated tablets, Jadenu Sprinkle granules are available in 3 strengths—90 mg, 180 mg, and 360 mg.
Both formulations of Jadenu are products of Novartis. For more details on Jadenu, see the prescribing information. ![]()
The US Food and Drug Administration (FDA) has approved a new formulation of deferasirox known as Jadenu Sprinkle granules.
The granules are approved for use in the same population as Jadenu film-coated tablets.
Both formulations of Jadenu have accelerated approval from the FDA for the treatment of chronic iron overload due to blood transfusions in patients age 2 and older.
The formulations also have accelerated FDA approval for the treatment of chronic iron overload in patients age 10 and older with non-transfusion-dependent-thalassemia and a liver iron concentration of at least 5 mg Fe per gram of dry weight and a serum ferritin greater than 300 mcg/L.
Continued FDA approval for Jadenu in these indications may be contingent upon verification and description of clinical benefit in confirmatory trials.
Jadenu Sprinkle granules are intended for patients who have difficulty swallowing whole tablets. The granules can be sprinkled over soft foods (eg, yogurt or applesauce) prior to consumption.
Like Jadenu film-coated tablets, Jadenu Sprinkle granules are available in 3 strengths—90 mg, 180 mg, and 360 mg.
Both formulations of Jadenu are products of Novartis. For more details on Jadenu, see the prescribing information. ![]()
NIH releases COPD National Action Plan
WASHINGTON – The National Institutes of Health on Monday released its first COPD National Action Plan, a five-point initiative to reduce the burden of chronic obstructive pulmonary disease and increase research into prevention and treatment.
On the same day, the National Heart, Lung, and Blood Institute and other supporters of the plan described its evolution and why they thought the plan’s implementation was important.
The plan’s five goals are:
- Empower people with COPD, their families, and caregivers to recognize and reduce the burden of COPD.
- Improve the prevention, diagnosis, treatment, and management of COPD by increasing the quality of care delivered across the health care continuum.
- Collect, analyze, report, and disseminate COPD-related public health data that drive change and track progress.
- Increase and sustain research to better understand the prevention, pathogenesis, diagnosis, treatment, and management of COPD.
- Translate national policy, educational, and program recommendations into research and public health care actions.
“Chronic obstructive pulmonary disease is the third-leading cause of death in this country; it’s just behind heart disease and cancer,” Dr. Kiley noted. “What’s really disappointing and discouraging is it’s the only cause of death in this country where the numbers are not declining.”
COPD “got the attention of Congress a number of years ago,” he added. “They encouraged the National Institutes of Health to work with the community stakeholders and other federal agencies to develop a national action plan to respond to the growing burden of this disease.”
COPD’s stakeholder community, the federal government, and other partners worked together to develop a set of core goals that the National Action Plan would address, Dr. Kiley continued. “It was meant to obtain the broadest amount of input possible so that we could get it right from the start.”
Another of the plan’s advocates, MeiLan Han, MD, medical director of the women’s respiratory health program at the University of Michigan, Ann Arbor, illustrated the need to increase and sustain COPD research related to the disease.
[polldaddy:9806142]
“I see the suffering and disease toll that this takes on my patients, and I can’t convince you enough of the level of frustration that I have as a physician in not being able to provide the level of care that I want to be able to provide,” said Dr. Han, who served as a panelist at the press conference.
“We face some serious barriers to being able to provide adequate care for patients,” she added. Those barriers include lack of access to providers who are knowledgeable about COPD, as well as lack of access to affordable and conveniently located pulmonology rehabilitation and education materials. From a research standpoint, Dr. Han added, medicine still doesn’t know enough about the disease. “We certainly have good treatments, but we need better treatments,” she said.
“What’s clear is that we as society can no longer afford to brush this under the table and ignore this problem,” Dr. Han added.
The National Action Plan and information about how to get involved are available at copd.nih.gov.
WASHINGTON – The National Institutes of Health on Monday released its first COPD National Action Plan, a five-point initiative to reduce the burden of chronic obstructive pulmonary disease and increase research into prevention and treatment.
On the same day, the National Heart, Lung, and Blood Institute and other supporters of the plan described its evolution and why they thought the plan’s implementation was important.
The plan’s five goals are:
- Empower people with COPD, their families, and caregivers to recognize and reduce the burden of COPD.
- Improve the prevention, diagnosis, treatment, and management of COPD by increasing the quality of care delivered across the health care continuum.
- Collect, analyze, report, and disseminate COPD-related public health data that drive change and track progress.
- Increase and sustain research to better understand the prevention, pathogenesis, diagnosis, treatment, and management of COPD.
- Translate national policy, educational, and program recommendations into research and public health care actions.
“Chronic obstructive pulmonary disease is the third-leading cause of death in this country; it’s just behind heart disease and cancer,” Dr. Kiley noted. “What’s really disappointing and discouraging is it’s the only cause of death in this country where the numbers are not declining.”
COPD “got the attention of Congress a number of years ago,” he added. “They encouraged the National Institutes of Health to work with the community stakeholders and other federal agencies to develop a national action plan to respond to the growing burden of this disease.”
COPD’s stakeholder community, the federal government, and other partners worked together to develop a set of core goals that the National Action Plan would address, Dr. Kiley continued. “It was meant to obtain the broadest amount of input possible so that we could get it right from the start.”
Another of the plan’s advocates, MeiLan Han, MD, medical director of the women’s respiratory health program at the University of Michigan, Ann Arbor, illustrated the need to increase and sustain COPD research related to the disease.
[polldaddy:9806142]
“I see the suffering and disease toll that this takes on my patients, and I can’t convince you enough of the level of frustration that I have as a physician in not being able to provide the level of care that I want to be able to provide,” said Dr. Han, who served as a panelist at the press conference.
“We face some serious barriers to being able to provide adequate care for patients,” she added. Those barriers include lack of access to providers who are knowledgeable about COPD, as well as lack of access to affordable and conveniently located pulmonology rehabilitation and education materials. From a research standpoint, Dr. Han added, medicine still doesn’t know enough about the disease. “We certainly have good treatments, but we need better treatments,” she said.
“What’s clear is that we as society can no longer afford to brush this under the table and ignore this problem,” Dr. Han added.
The National Action Plan and information about how to get involved are available at copd.nih.gov.
WASHINGTON – The National Institutes of Health on Monday released its first COPD National Action Plan, a five-point initiative to reduce the burden of chronic obstructive pulmonary disease and increase research into prevention and treatment.
On the same day, the National Heart, Lung, and Blood Institute and other supporters of the plan described its evolution and why they thought the plan’s implementation was important.
The plan’s five goals are:
- Empower people with COPD, their families, and caregivers to recognize and reduce the burden of COPD.
- Improve the prevention, diagnosis, treatment, and management of COPD by increasing the quality of care delivered across the health care continuum.
- Collect, analyze, report, and disseminate COPD-related public health data that drive change and track progress.
- Increase and sustain research to better understand the prevention, pathogenesis, diagnosis, treatment, and management of COPD.
- Translate national policy, educational, and program recommendations into research and public health care actions.
“Chronic obstructive pulmonary disease is the third-leading cause of death in this country; it’s just behind heart disease and cancer,” Dr. Kiley noted. “What’s really disappointing and discouraging is it’s the only cause of death in this country where the numbers are not declining.”
COPD “got the attention of Congress a number of years ago,” he added. “They encouraged the National Institutes of Health to work with the community stakeholders and other federal agencies to develop a national action plan to respond to the growing burden of this disease.”
COPD’s stakeholder community, the federal government, and other partners worked together to develop a set of core goals that the National Action Plan would address, Dr. Kiley continued. “It was meant to obtain the broadest amount of input possible so that we could get it right from the start.”
Another of the plan’s advocates, MeiLan Han, MD, medical director of the women’s respiratory health program at the University of Michigan, Ann Arbor, illustrated the need to increase and sustain COPD research related to the disease.
[polldaddy:9806142]
“I see the suffering and disease toll that this takes on my patients, and I can’t convince you enough of the level of frustration that I have as a physician in not being able to provide the level of care that I want to be able to provide,” said Dr. Han, who served as a panelist at the press conference.
“We face some serious barriers to being able to provide adequate care for patients,” she added. Those barriers include lack of access to providers who are knowledgeable about COPD, as well as lack of access to affordable and conveniently located pulmonology rehabilitation and education materials. From a research standpoint, Dr. Han added, medicine still doesn’t know enough about the disease. “We certainly have good treatments, but we need better treatments,” she said.
“What’s clear is that we as society can no longer afford to brush this under the table and ignore this problem,” Dr. Han added.
The National Action Plan and information about how to get involved are available at copd.nih.gov.
AT ATS 2017
FDA okays pembrolizumab for certain solid tumors with common biomarker
In an accelerated approval process, the Food and Drug Administration has approved the use of the monoclonal antibody pembrolizumab for treatment of certain solid tumors that have a common biomarker, a first for the agency.
Pembrolizumab (Keytruda) was approved to treat patients whose tumors are metastatic or unresectable, and which have the biomarker microsatellite instability-high (MSI-H), also known as mismatch repair deficient (dMMR). This biomarker is found in many kinds of solid tumors, especially in colorectal and other gastrointestinal cancers, as well as endometrial cancer, and may make tumors more susceptible to host immune system activity. “Approximately 5% of patients with metastatic colorectal cancer have MSI-H or dMMR tumors,” according to the FDA statement announcing the approval.
Patients who are eligible for pembrolizumab under this approval are those whose solid tumors have progressed despite earlier treatment and who lack other treatment options; pembrolizumab was also approved for colorectal cancer patients whose cancers have progressed after treatment with some chemotherapy drugs.
Pembrolizumab received priority review from the FDA and was approved on the basis of five uncontrolled single-arm clinical trials. There were a total of 149 patients enrolled in the trials, and 15 different cancer types were represented. Colorectal and other gastrointestinal cancers and endometrial cancers were the most common types in the studies. Of the 149 patients, 39.6% had a complete or partial response, and of these responders, 78% had a response lasting at least 6 months.
Fatigue is a common side effect of pembrolizumab; anorexia, peripheral edema, rash, pruritis, hyperlipidemia, and electrolyte disturbances are also common. Because of the drug’s mechanism of action, it can cause immune-mediated side effects, such as pneumonitis, hepatitis, nephritis, and endocrinopathies.
Pembrolizumab is given as an intravenous infusion, usually once every 3 weeks. It targets the programmed death-1/programmed death-ligand 1 (PD-1/PDL-1) pathway to boost the immune system’s ability to target and kill cancer cells.
“This is an important first for the cancer community,” said Dr. Pazdur, who is also acting director of the Office of Hematology and Oncology Products in the FDA’s Center for Drug Evaluation and Research. The clinical trials were sponsored by Merck & Co., which markets Keytruda.
koakes@frontlinemedcom.com
On Twitter @karioakes
In an accelerated approval process, the Food and Drug Administration has approved the use of the monoclonal antibody pembrolizumab for treatment of certain solid tumors that have a common biomarker, a first for the agency.
Pembrolizumab (Keytruda) was approved to treat patients whose tumors are metastatic or unresectable, and which have the biomarker microsatellite instability-high (MSI-H), also known as mismatch repair deficient (dMMR). This biomarker is found in many kinds of solid tumors, especially in colorectal and other gastrointestinal cancers, as well as endometrial cancer, and may make tumors more susceptible to host immune system activity. “Approximately 5% of patients with metastatic colorectal cancer have MSI-H or dMMR tumors,” according to the FDA statement announcing the approval.
Patients who are eligible for pembrolizumab under this approval are those whose solid tumors have progressed despite earlier treatment and who lack other treatment options; pembrolizumab was also approved for colorectal cancer patients whose cancers have progressed after treatment with some chemotherapy drugs.
Pembrolizumab received priority review from the FDA and was approved on the basis of five uncontrolled single-arm clinical trials. There were a total of 149 patients enrolled in the trials, and 15 different cancer types were represented. Colorectal and other gastrointestinal cancers and endometrial cancers were the most common types in the studies. Of the 149 patients, 39.6% had a complete or partial response, and of these responders, 78% had a response lasting at least 6 months.
Fatigue is a common side effect of pembrolizumab; anorexia, peripheral edema, rash, pruritis, hyperlipidemia, and electrolyte disturbances are also common. Because of the drug’s mechanism of action, it can cause immune-mediated side effects, such as pneumonitis, hepatitis, nephritis, and endocrinopathies.
Pembrolizumab is given as an intravenous infusion, usually once every 3 weeks. It targets the programmed death-1/programmed death-ligand 1 (PD-1/PDL-1) pathway to boost the immune system’s ability to target and kill cancer cells.
“This is an important first for the cancer community,” said Dr. Pazdur, who is also acting director of the Office of Hematology and Oncology Products in the FDA’s Center for Drug Evaluation and Research. The clinical trials were sponsored by Merck & Co., which markets Keytruda.
koakes@frontlinemedcom.com
On Twitter @karioakes
In an accelerated approval process, the Food and Drug Administration has approved the use of the monoclonal antibody pembrolizumab for treatment of certain solid tumors that have a common biomarker, a first for the agency.
Pembrolizumab (Keytruda) was approved to treat patients whose tumors are metastatic or unresectable, and which have the biomarker microsatellite instability-high (MSI-H), also known as mismatch repair deficient (dMMR). This biomarker is found in many kinds of solid tumors, especially in colorectal and other gastrointestinal cancers, as well as endometrial cancer, and may make tumors more susceptible to host immune system activity. “Approximately 5% of patients with metastatic colorectal cancer have MSI-H or dMMR tumors,” according to the FDA statement announcing the approval.
Patients who are eligible for pembrolizumab under this approval are those whose solid tumors have progressed despite earlier treatment and who lack other treatment options; pembrolizumab was also approved for colorectal cancer patients whose cancers have progressed after treatment with some chemotherapy drugs.
Pembrolizumab received priority review from the FDA and was approved on the basis of five uncontrolled single-arm clinical trials. There were a total of 149 patients enrolled in the trials, and 15 different cancer types were represented. Colorectal and other gastrointestinal cancers and endometrial cancers were the most common types in the studies. Of the 149 patients, 39.6% had a complete or partial response, and of these responders, 78% had a response lasting at least 6 months.
Fatigue is a common side effect of pembrolizumab; anorexia, peripheral edema, rash, pruritis, hyperlipidemia, and electrolyte disturbances are also common. Because of the drug’s mechanism of action, it can cause immune-mediated side effects, such as pneumonitis, hepatitis, nephritis, and endocrinopathies.
Pembrolizumab is given as an intravenous infusion, usually once every 3 weeks. It targets the programmed death-1/programmed death-ligand 1 (PD-1/PDL-1) pathway to boost the immune system’s ability to target and kill cancer cells.
“This is an important first for the cancer community,” said Dr. Pazdur, who is also acting director of the Office of Hematology and Oncology Products in the FDA’s Center for Drug Evaluation and Research. The clinical trials were sponsored by Merck & Co., which markets Keytruda.
koakes@frontlinemedcom.com
On Twitter @karioakes
ECG finding predicts AFib in ibrutinib-treated CLL
NEW YORK – A left atrial abnormality on a pretreatment electrocardiogram (ECG) is a moderately specific and sensitive finding that independently predicts risk for developing atrial fibrillation in chronic lymphocytic leukemia patients starting on ibrutinib, findings from a retrospective cohort study indicate.
ECGs are inexpensive and available in most physician’s offices. Routinely checking for a left atrial abnormality before starting ibrutinib would identify a patient subgroup that would benefit from increased monitoring and allow for proactive intervention strategies to reduce complications should atrial fibrillation develop, Anthony Mato, MD, said at the annual meeting of the International Workshop on Chronic Lymphocytic Leukemia.
Prior studies, including the RESONATE and RESONATE 2 trials, have clearly demonstrated a link between ibrutinib exposure and the development of AFib. Long-term follow-up data suggest an estimated incidence of 9% to 11%.
Dr. Mato and his colleagues used a case-control design within a two-center retrospective cohort study to test the hypothesis that pre-ibrutinib left atrial abnormality, as determined by the ECG, can identify patients at increased risk for AFib during ibrutinib-based therapy.
Of 153 consecutive CLL patients who were treated with ibrutinib 420 mg/day, 11% developed new AFib at a median of 7 months after starting treatment. Discontinuation of ibrutinib because of AFib was low, with less than 2% of the entire cohort discontinuing treatment.
Based on findings in 20 case patients and 24 controls with an available pretreatment ECG, the presence of a left atrial abnormality before ibrutinib therapy was associated with a nine times increased risk of subsequently developing AFib.
“We looked at baseline hypertension, coronary disease, diabetes, age, and sex, and, although hypertension, coronary disease, and age appeared to have some effect, they weren’t as significant as left atrial abnormality” for predicting risk of AFib, Dr. Mato noted.
On multivariate analysis, controlling for hypertension, coronary disease, and age, a left atrial abnormality continued to be a significant predictor of AFib (odds ratio, 6.6).
“We then wanted to make this more practical for clinicians who may potentially perform an ECG to estimate risk,” he said, noting that ECG test characteristics associated with left atrial abnormality were defined: Sensitivity was estimated to be 79%, specificity was 71%, positive and negative likelihood ratios were 2.7 and 0.3, respectively. Positive predictive value was 68%, and negative predictive value was 81%.
The area under the ROC curve for this single predictor was 75%, he said.
The median age of the cohort at CLL diagnosis was 61 years, and the median age at ibrutinib start was 70. Patients had undergone a median of 2 prior lines of therapy, and 87% were treated in the relapsed/refractory setting.
The median follow-up was 17 months, and the median time from CLL diagnosis to the start of ibrutinib was 73 months.
Cardiovascular characteristics prior to treatment included smoking or former smoking in 49%, hypertension in 42%, hyperlipidemia in 39%, diabetes in 17%, coronary artery disease in 12%, and valvular heart disease in 5%.
Controls were matched to cases on baseline characteristics, and only those with no pretreatment history of AFib, a pretreatment ECG, and therapeutic ibrutinib dosing (420 mg/day for at least 4 months) were included.
To minimize bias, all ECGs were reviewed by a cardio-oncologist blinded to clinical outcomes.
The findings need prospective validation, as they are limited by the retrospective study design, lack of balance with respect to cardiovascular characteristics among cases and controls, a small number of atrial fibrillation cases, and variable timing of pre-ibrutinib ECG, he said.
Patients should be educated about the signs and symptoms of AFib. “The development of AFib during ibrutinib treatment should not prevent its continuation. These patients should be managed medically,” he added.
Dr. Mato reported having no disclosures.
NEW YORK – A left atrial abnormality on a pretreatment electrocardiogram (ECG) is a moderately specific and sensitive finding that independently predicts risk for developing atrial fibrillation in chronic lymphocytic leukemia patients starting on ibrutinib, findings from a retrospective cohort study indicate.
ECGs are inexpensive and available in most physician’s offices. Routinely checking for a left atrial abnormality before starting ibrutinib would identify a patient subgroup that would benefit from increased monitoring and allow for proactive intervention strategies to reduce complications should atrial fibrillation develop, Anthony Mato, MD, said at the annual meeting of the International Workshop on Chronic Lymphocytic Leukemia.
Prior studies, including the RESONATE and RESONATE 2 trials, have clearly demonstrated a link between ibrutinib exposure and the development of AFib. Long-term follow-up data suggest an estimated incidence of 9% to 11%.
Dr. Mato and his colleagues used a case-control design within a two-center retrospective cohort study to test the hypothesis that pre-ibrutinib left atrial abnormality, as determined by the ECG, can identify patients at increased risk for AFib during ibrutinib-based therapy.
Of 153 consecutive CLL patients who were treated with ibrutinib 420 mg/day, 11% developed new AFib at a median of 7 months after starting treatment. Discontinuation of ibrutinib because of AFib was low, with less than 2% of the entire cohort discontinuing treatment.
Based on findings in 20 case patients and 24 controls with an available pretreatment ECG, the presence of a left atrial abnormality before ibrutinib therapy was associated with a nine times increased risk of subsequently developing AFib.
“We looked at baseline hypertension, coronary disease, diabetes, age, and sex, and, although hypertension, coronary disease, and age appeared to have some effect, they weren’t as significant as left atrial abnormality” for predicting risk of AFib, Dr. Mato noted.
On multivariate analysis, controlling for hypertension, coronary disease, and age, a left atrial abnormality continued to be a significant predictor of AFib (odds ratio, 6.6).
“We then wanted to make this more practical for clinicians who may potentially perform an ECG to estimate risk,” he said, noting that ECG test characteristics associated with left atrial abnormality were defined: Sensitivity was estimated to be 79%, specificity was 71%, positive and negative likelihood ratios were 2.7 and 0.3, respectively. Positive predictive value was 68%, and negative predictive value was 81%.
The area under the ROC curve for this single predictor was 75%, he said.
The median age of the cohort at CLL diagnosis was 61 years, and the median age at ibrutinib start was 70. Patients had undergone a median of 2 prior lines of therapy, and 87% were treated in the relapsed/refractory setting.
The median follow-up was 17 months, and the median time from CLL diagnosis to the start of ibrutinib was 73 months.
Cardiovascular characteristics prior to treatment included smoking or former smoking in 49%, hypertension in 42%, hyperlipidemia in 39%, diabetes in 17%, coronary artery disease in 12%, and valvular heart disease in 5%.
Controls were matched to cases on baseline characteristics, and only those with no pretreatment history of AFib, a pretreatment ECG, and therapeutic ibrutinib dosing (420 mg/day for at least 4 months) were included.
To minimize bias, all ECGs were reviewed by a cardio-oncologist blinded to clinical outcomes.
The findings need prospective validation, as they are limited by the retrospective study design, lack of balance with respect to cardiovascular characteristics among cases and controls, a small number of atrial fibrillation cases, and variable timing of pre-ibrutinib ECG, he said.
Patients should be educated about the signs and symptoms of AFib. “The development of AFib during ibrutinib treatment should not prevent its continuation. These patients should be managed medically,” he added.
Dr. Mato reported having no disclosures.
NEW YORK – A left atrial abnormality on a pretreatment electrocardiogram (ECG) is a moderately specific and sensitive finding that independently predicts risk for developing atrial fibrillation in chronic lymphocytic leukemia patients starting on ibrutinib, findings from a retrospective cohort study indicate.
ECGs are inexpensive and available in most physician’s offices. Routinely checking for a left atrial abnormality before starting ibrutinib would identify a patient subgroup that would benefit from increased monitoring and allow for proactive intervention strategies to reduce complications should atrial fibrillation develop, Anthony Mato, MD, said at the annual meeting of the International Workshop on Chronic Lymphocytic Leukemia.
Prior studies, including the RESONATE and RESONATE 2 trials, have clearly demonstrated a link between ibrutinib exposure and the development of AFib. Long-term follow-up data suggest an estimated incidence of 9% to 11%.
Dr. Mato and his colleagues used a case-control design within a two-center retrospective cohort study to test the hypothesis that pre-ibrutinib left atrial abnormality, as determined by the ECG, can identify patients at increased risk for AFib during ibrutinib-based therapy.
Of 153 consecutive CLL patients who were treated with ibrutinib 420 mg/day, 11% developed new AFib at a median of 7 months after starting treatment. Discontinuation of ibrutinib because of AFib was low, with less than 2% of the entire cohort discontinuing treatment.
Based on findings in 20 case patients and 24 controls with an available pretreatment ECG, the presence of a left atrial abnormality before ibrutinib therapy was associated with a nine times increased risk of subsequently developing AFib.
“We looked at baseline hypertension, coronary disease, diabetes, age, and sex, and, although hypertension, coronary disease, and age appeared to have some effect, they weren’t as significant as left atrial abnormality” for predicting risk of AFib, Dr. Mato noted.
On multivariate analysis, controlling for hypertension, coronary disease, and age, a left atrial abnormality continued to be a significant predictor of AFib (odds ratio, 6.6).
“We then wanted to make this more practical for clinicians who may potentially perform an ECG to estimate risk,” he said, noting that ECG test characteristics associated with left atrial abnormality were defined: Sensitivity was estimated to be 79%, specificity was 71%, positive and negative likelihood ratios were 2.7 and 0.3, respectively. Positive predictive value was 68%, and negative predictive value was 81%.
The area under the ROC curve for this single predictor was 75%, he said.
The median age of the cohort at CLL diagnosis was 61 years, and the median age at ibrutinib start was 70. Patients had undergone a median of 2 prior lines of therapy, and 87% were treated in the relapsed/refractory setting.
The median follow-up was 17 months, and the median time from CLL diagnosis to the start of ibrutinib was 73 months.
Cardiovascular characteristics prior to treatment included smoking or former smoking in 49%, hypertension in 42%, hyperlipidemia in 39%, diabetes in 17%, coronary artery disease in 12%, and valvular heart disease in 5%.
Controls were matched to cases on baseline characteristics, and only those with no pretreatment history of AFib, a pretreatment ECG, and therapeutic ibrutinib dosing (420 mg/day for at least 4 months) were included.
To minimize bias, all ECGs were reviewed by a cardio-oncologist blinded to clinical outcomes.
The findings need prospective validation, as they are limited by the retrospective study design, lack of balance with respect to cardiovascular characteristics among cases and controls, a small number of atrial fibrillation cases, and variable timing of pre-ibrutinib ECG, he said.
Patients should be educated about the signs and symptoms of AFib. “The development of AFib during ibrutinib treatment should not prevent its continuation. These patients should be managed medically,” he added.
Dr. Mato reported having no disclosures.
AT THE IWCLL MEETING
Key clinical point:
Major finding: Left atrial abnormality as measured using ECG was a significant predictor of AFIB (adjusted odds ratio, 6.6).
Data source: A case-control study of 44 patients within a retrospective cohort.
Disclosures: Dr. Mato reported having no disclosures.
Benefits, safety of dupilumab-steroid combination in adults with AD sustained
Dupilumab significantly improved symptoms when used in conjunction with topical steroids over one year in a phase III randomized trial of adults with moderate to severe atopic dermatitis (AD) conducted at 161 centers in 14 countries.
The study is “the first large, randomized, double-blinded placebo-controlled study of long-term systemic treatment in patients with moderate-to-severe atopic dermatitis,” wrote Andrew Blauvelt, MD, president of the Oregon Medical Research Center, Portland, and his coauthors. “These results validate the fundamental role for interleukin 4 and interleukin 13 in the pathogenesis of atopic dermatitis,” they added. The findings were published online (Lancet. 2017 May 4. doi: 10.1016/S0140-6736[17]31191-1).
Dupilumab (Dupixent), a monoclonal antibody that inhibits signaling of both interleukin-4 and interleukin-13, was approved by the Food and Drug Administration in March for treating moderate-to-severe AD in adults.
In the study, known as LIBERTY AD CHRONOS, 740 patients were enrolled and 1-year data were available for 270 adults who received 300 mg of dupilumab once a week plus topical corticosteroids, 89 patients who received 300 mg of dupilumab every two weeks plus topical corticosteroids, and 264 patients who received a placebo plus topical corticosteroids. The two efficacy endpoints were the percent of patients with Investigator’s Global Assessment (IGA) of 0/1 and a 2-point or higher improvement from baseline and a 75% improvement from baseline on the Eczema Area and Severity Index.
At week 16, significantly more patients who received dupilumab plus topical corticosteroids achieved IGA 0/1 (39% of weekly dupilumab plus topical corticosteroids and 39% of those who received dupilumab every 2 weeks plus topical corticosteroids), compared with 12% of placebo/corticosteroid patients. The percentages of patients in each group who met the EASI-75 endpoint were 64%, 69%, and 23%, respectively (P less than .0001).
“The improvement was sustained over the 52-week treatment period,” and the combination therapy was also associated with improvements in “several other measures of clinical signs and symptoms of atopic dermatitis including pruritus, as well as symptoms of anxiety and depression and health-related quality of life, over the 52-week treatment period,” they wrote.
Adverse events were similar among the groups, with 83%, 88%, and 84% of patients in the weekly dupilumab, biweekly dupilumab, and placebo groups, respectively, reporting at least one adverse event. Nonherpetic skin infections were less common among dupilumab patients than among placebo patients, but conjunctivitis was more common among those on dupilumab (14%-19% vs. 8%). “Dupilumab might be the first targeted immune biologic that is neither immunosuppressive nor associated with increased risk of infection but, rather, restorative of barrier and immune function,” the researchers noted.
The results were limited by several factors including the challenges of determining how much topical medication was actually used by patients across multiple study sites, they wrote. However, the data suggest that “the emerging benefit-to-risk profile in this 52-week study supports the role of dupilumab as a primary targeted biologic therapy for up to 1 year in patients with moderate-to-severe atopic dermatitis who are not controlled with topical medications alone,” they said.
The study was funded by Sanofi and Regeneron Pharmaceuticals. Dr. Blauvelt and coauthors disclosed relationships with companies including Sanofi and Regeneron. Several authors were employees of the two companies.
Dupilumab significantly improved symptoms when used in conjunction with topical steroids over one year in a phase III randomized trial of adults with moderate to severe atopic dermatitis (AD) conducted at 161 centers in 14 countries.
The study is “the first large, randomized, double-blinded placebo-controlled study of long-term systemic treatment in patients with moderate-to-severe atopic dermatitis,” wrote Andrew Blauvelt, MD, president of the Oregon Medical Research Center, Portland, and his coauthors. “These results validate the fundamental role for interleukin 4 and interleukin 13 in the pathogenesis of atopic dermatitis,” they added. The findings were published online (Lancet. 2017 May 4. doi: 10.1016/S0140-6736[17]31191-1).
Dupilumab (Dupixent), a monoclonal antibody that inhibits signaling of both interleukin-4 and interleukin-13, was approved by the Food and Drug Administration in March for treating moderate-to-severe AD in adults.
In the study, known as LIBERTY AD CHRONOS, 740 patients were enrolled and 1-year data were available for 270 adults who received 300 mg of dupilumab once a week plus topical corticosteroids, 89 patients who received 300 mg of dupilumab every two weeks plus topical corticosteroids, and 264 patients who received a placebo plus topical corticosteroids. The two efficacy endpoints were the percent of patients with Investigator’s Global Assessment (IGA) of 0/1 and a 2-point or higher improvement from baseline and a 75% improvement from baseline on the Eczema Area and Severity Index.
At week 16, significantly more patients who received dupilumab plus topical corticosteroids achieved IGA 0/1 (39% of weekly dupilumab plus topical corticosteroids and 39% of those who received dupilumab every 2 weeks plus topical corticosteroids), compared with 12% of placebo/corticosteroid patients. The percentages of patients in each group who met the EASI-75 endpoint were 64%, 69%, and 23%, respectively (P less than .0001).
“The improvement was sustained over the 52-week treatment period,” and the combination therapy was also associated with improvements in “several other measures of clinical signs and symptoms of atopic dermatitis including pruritus, as well as symptoms of anxiety and depression and health-related quality of life, over the 52-week treatment period,” they wrote.
Adverse events were similar among the groups, with 83%, 88%, and 84% of patients in the weekly dupilumab, biweekly dupilumab, and placebo groups, respectively, reporting at least one adverse event. Nonherpetic skin infections were less common among dupilumab patients than among placebo patients, but conjunctivitis was more common among those on dupilumab (14%-19% vs. 8%). “Dupilumab might be the first targeted immune biologic that is neither immunosuppressive nor associated with increased risk of infection but, rather, restorative of barrier and immune function,” the researchers noted.
The results were limited by several factors including the challenges of determining how much topical medication was actually used by patients across multiple study sites, they wrote. However, the data suggest that “the emerging benefit-to-risk profile in this 52-week study supports the role of dupilumab as a primary targeted biologic therapy for up to 1 year in patients with moderate-to-severe atopic dermatitis who are not controlled with topical medications alone,” they said.
The study was funded by Sanofi and Regeneron Pharmaceuticals. Dr. Blauvelt and coauthors disclosed relationships with companies including Sanofi and Regeneron. Several authors were employees of the two companies.
Dupilumab significantly improved symptoms when used in conjunction with topical steroids over one year in a phase III randomized trial of adults with moderate to severe atopic dermatitis (AD) conducted at 161 centers in 14 countries.
The study is “the first large, randomized, double-blinded placebo-controlled study of long-term systemic treatment in patients with moderate-to-severe atopic dermatitis,” wrote Andrew Blauvelt, MD, president of the Oregon Medical Research Center, Portland, and his coauthors. “These results validate the fundamental role for interleukin 4 and interleukin 13 in the pathogenesis of atopic dermatitis,” they added. The findings were published online (Lancet. 2017 May 4. doi: 10.1016/S0140-6736[17]31191-1).
Dupilumab (Dupixent), a monoclonal antibody that inhibits signaling of both interleukin-4 and interleukin-13, was approved by the Food and Drug Administration in March for treating moderate-to-severe AD in adults.
In the study, known as LIBERTY AD CHRONOS, 740 patients were enrolled and 1-year data were available for 270 adults who received 300 mg of dupilumab once a week plus topical corticosteroids, 89 patients who received 300 mg of dupilumab every two weeks plus topical corticosteroids, and 264 patients who received a placebo plus topical corticosteroids. The two efficacy endpoints were the percent of patients with Investigator’s Global Assessment (IGA) of 0/1 and a 2-point or higher improvement from baseline and a 75% improvement from baseline on the Eczema Area and Severity Index.
At week 16, significantly more patients who received dupilumab plus topical corticosteroids achieved IGA 0/1 (39% of weekly dupilumab plus topical corticosteroids and 39% of those who received dupilumab every 2 weeks plus topical corticosteroids), compared with 12% of placebo/corticosteroid patients. The percentages of patients in each group who met the EASI-75 endpoint were 64%, 69%, and 23%, respectively (P less than .0001).
“The improvement was sustained over the 52-week treatment period,” and the combination therapy was also associated with improvements in “several other measures of clinical signs and symptoms of atopic dermatitis including pruritus, as well as symptoms of anxiety and depression and health-related quality of life, over the 52-week treatment period,” they wrote.
Adverse events were similar among the groups, with 83%, 88%, and 84% of patients in the weekly dupilumab, biweekly dupilumab, and placebo groups, respectively, reporting at least one adverse event. Nonherpetic skin infections were less common among dupilumab patients than among placebo patients, but conjunctivitis was more common among those on dupilumab (14%-19% vs. 8%). “Dupilumab might be the first targeted immune biologic that is neither immunosuppressive nor associated with increased risk of infection but, rather, restorative of barrier and immune function,” the researchers noted.
The results were limited by several factors including the challenges of determining how much topical medication was actually used by patients across multiple study sites, they wrote. However, the data suggest that “the emerging benefit-to-risk profile in this 52-week study supports the role of dupilumab as a primary targeted biologic therapy for up to 1 year in patients with moderate-to-severe atopic dermatitis who are not controlled with topical medications alone,” they said.
The study was funded by Sanofi and Regeneron Pharmaceuticals. Dr. Blauvelt and coauthors disclosed relationships with companies including Sanofi and Regeneron. Several authors were employees of the two companies.
FROM THE LANCET
Key clinical point: One year data on the efficacy and safety of dupilumab, combined with topical steroids, in adults with atopic dermatitis reflected the positive 16-week results, with encouraging safety data.
Major finding: After 16 weeks, 39% of atopic dermatitis patients who received dupilumab in addition to topical steroids met endpoints for improved symptoms, vs. 12% of patients who received topical steroids plus placebo. These benefits were sustained through one year.
Data source: An international phase III randomized trial of adults with moderate to severe atopic dermatitis.
Disclosures: The study was funded by Sanofi and Regeneron Pharmaceuticals. The lead author and coauthors disclosed relationships with companies including Sanofi and Regeneron. Several authors were employees of the two companies.
Infliximab biosimilar noninferior to originator in IBD – NOR-SWITCH
CHICAGO – The biosimilar infliximab CT-P13 is not inferior to the originator infliximab in terms of efficacy, safety, and immunogenicity in the treatment of inflammatory bowel disease (IBD), a phase IV randomized trial showed.
Patient outcomes were not compromised with the use of the biosimilar, and the cost of treatment was much lower, said lead author Kristin K. Jørgensen, MD, PhD, at Digestive Disease Week®.
“Biologics represent a substantial source of IBD expenditure,” said Dr. Jørgensen of Akershus University Hospital, Lørenskog, Norway. “The medication is expensive, patients are treated on a long-term basis, and the incidence of IBD is increasing.”
Biosimilars are biotherapeutic products that are similar in terms of quality, safety, and efficacy to the already licensed reference biologic product. “Use of biosimilars can potentially dramatically decrease costs and may lead to better patient care,” said Dr. Jørgensen. “The patient gets increased access to biologic therapy, and it is easier to intensify dosing if indicated.”
Tumor necrosis factor–inhibitors are commonly used to treat Crohn’s disease, ulcerative colitis, spondyloarthritis, rheumatoid arthritis, psoriatic arthritis, and chronic plaque psoriasis, and, while they have altered the treatment paradigm, they are expensive products.
The goal of the NOR-SWITCH was to evaluate switching from originator infliximab to CT-P13, in terms of efficacy, safety, and immunogenicity.
Dr. Jørgensen and her colleagues conducted a randomized phase IV trial that enrolled 482 patients who were randomly assigned to either infliximab originator (n = 241) or CT-P13 (n = 241). The primary endpoint was disease worsening during follow-up.
Of the group, 155 patients (32%) had Crohn’s disease, 93 (19%) had ulcerative colitis, 91 (19%) had spondyloarthritis, 77 (16%) had rheumatoid arthritis, 30 (6%) had psoriatic arthritis, and 35 (7%) had chronic plaque psoriasis.
Disease worsening occurred at a similar rate in both groups. In the infliximab originator group, 53 patients (26%) experienced a worsening of their symptoms, compared with 61 patients (30%) in the CT-P13 group. The 95% confidence interval of the adjusted risk difference (−4.4%) was −12.7% to 3.9%, which fell within the prespecified noninferiority margin of 15%.
Therefore, the findings demonstrated that CT-P13 is not inferior to infliximab originator, and the adjusted relative risk of disease worsening for CT-P13 patients was 1.17 (95% CI, 0.82-1.52), compared with the infliximab originator group.
An almost equal number of patients achieved disease remission, 123 patients (61%) in the infliximab originator group and 126 patients (61%) in the CT-P13 group, and the adjusted rate difference was 0.6% (95% CI, –7.5%-8.8%; per-protocol set).
An explorative subgroup analysis that looked at patients with Crohn’s disease and ulcerative colitis showed similar findings between patients treated with either agent.
“Our results support switching from the originator to a biosimilar for nonmedical reasons,” concluded Dr. Jørgensen.
However, she urged caution in generalizing these findings to other biologic agents.
The study was funded by the Norwegian Ministry of Health and Care Services. Dr. Jorgensen reported receiving personal fees from Tillotts, Intercept, and Celltrion. Several coauthors also reported relationships with industry.
Digestive Disease Week® is jointly sponsored by the American Association for the Study of Liver Diseases (AASLD), the American Gastroenterological Association (AGA) Institute, the American Society for Gastrointestinal Endoscopy (ASGE), and the Society for Surgery of the Alimentary Tract (SSAT).
CHICAGO – The biosimilar infliximab CT-P13 is not inferior to the originator infliximab in terms of efficacy, safety, and immunogenicity in the treatment of inflammatory bowel disease (IBD), a phase IV randomized trial showed.
Patient outcomes were not compromised with the use of the biosimilar, and the cost of treatment was much lower, said lead author Kristin K. Jørgensen, MD, PhD, at Digestive Disease Week®.
“Biologics represent a substantial source of IBD expenditure,” said Dr. Jørgensen of Akershus University Hospital, Lørenskog, Norway. “The medication is expensive, patients are treated on a long-term basis, and the incidence of IBD is increasing.”
Biosimilars are biotherapeutic products that are similar in terms of quality, safety, and efficacy to the already licensed reference biologic product. “Use of biosimilars can potentially dramatically decrease costs and may lead to better patient care,” said Dr. Jørgensen. “The patient gets increased access to biologic therapy, and it is easier to intensify dosing if indicated.”
Tumor necrosis factor–inhibitors are commonly used to treat Crohn’s disease, ulcerative colitis, spondyloarthritis, rheumatoid arthritis, psoriatic arthritis, and chronic plaque psoriasis, and, while they have altered the treatment paradigm, they are expensive products.
The goal of the NOR-SWITCH was to evaluate switching from originator infliximab to CT-P13, in terms of efficacy, safety, and immunogenicity.
Dr. Jørgensen and her colleagues conducted a randomized phase IV trial that enrolled 482 patients who were randomly assigned to either infliximab originator (n = 241) or CT-P13 (n = 241). The primary endpoint was disease worsening during follow-up.
Of the group, 155 patients (32%) had Crohn’s disease, 93 (19%) had ulcerative colitis, 91 (19%) had spondyloarthritis, 77 (16%) had rheumatoid arthritis, 30 (6%) had psoriatic arthritis, and 35 (7%) had chronic plaque psoriasis.
Disease worsening occurred at a similar rate in both groups. In the infliximab originator group, 53 patients (26%) experienced a worsening of their symptoms, compared with 61 patients (30%) in the CT-P13 group. The 95% confidence interval of the adjusted risk difference (−4.4%) was −12.7% to 3.9%, which fell within the prespecified noninferiority margin of 15%.
Therefore, the findings demonstrated that CT-P13 is not inferior to infliximab originator, and the adjusted relative risk of disease worsening for CT-P13 patients was 1.17 (95% CI, 0.82-1.52), compared with the infliximab originator group.
An almost equal number of patients achieved disease remission, 123 patients (61%) in the infliximab originator group and 126 patients (61%) in the CT-P13 group, and the adjusted rate difference was 0.6% (95% CI, –7.5%-8.8%; per-protocol set).
An explorative subgroup analysis that looked at patients with Crohn’s disease and ulcerative colitis showed similar findings between patients treated with either agent.
“Our results support switching from the originator to a biosimilar for nonmedical reasons,” concluded Dr. Jørgensen.
However, she urged caution in generalizing these findings to other biologic agents.
The study was funded by the Norwegian Ministry of Health and Care Services. Dr. Jorgensen reported receiving personal fees from Tillotts, Intercept, and Celltrion. Several coauthors also reported relationships with industry.
Digestive Disease Week® is jointly sponsored by the American Association for the Study of Liver Diseases (AASLD), the American Gastroenterological Association (AGA) Institute, the American Society for Gastrointestinal Endoscopy (ASGE), and the Society for Surgery of the Alimentary Tract (SSAT).
CHICAGO – The biosimilar infliximab CT-P13 is not inferior to the originator infliximab in terms of efficacy, safety, and immunogenicity in the treatment of inflammatory bowel disease (IBD), a phase IV randomized trial showed.
Patient outcomes were not compromised with the use of the biosimilar, and the cost of treatment was much lower, said lead author Kristin K. Jørgensen, MD, PhD, at Digestive Disease Week®.
“Biologics represent a substantial source of IBD expenditure,” said Dr. Jørgensen of Akershus University Hospital, Lørenskog, Norway. “The medication is expensive, patients are treated on a long-term basis, and the incidence of IBD is increasing.”
Biosimilars are biotherapeutic products that are similar in terms of quality, safety, and efficacy to the already licensed reference biologic product. “Use of biosimilars can potentially dramatically decrease costs and may lead to better patient care,” said Dr. Jørgensen. “The patient gets increased access to biologic therapy, and it is easier to intensify dosing if indicated.”
Tumor necrosis factor–inhibitors are commonly used to treat Crohn’s disease, ulcerative colitis, spondyloarthritis, rheumatoid arthritis, psoriatic arthritis, and chronic plaque psoriasis, and, while they have altered the treatment paradigm, they are expensive products.
The goal of the NOR-SWITCH was to evaluate switching from originator infliximab to CT-P13, in terms of efficacy, safety, and immunogenicity.
Dr. Jørgensen and her colleagues conducted a randomized phase IV trial that enrolled 482 patients who were randomly assigned to either infliximab originator (n = 241) or CT-P13 (n = 241). The primary endpoint was disease worsening during follow-up.
Of the group, 155 patients (32%) had Crohn’s disease, 93 (19%) had ulcerative colitis, 91 (19%) had spondyloarthritis, 77 (16%) had rheumatoid arthritis, 30 (6%) had psoriatic arthritis, and 35 (7%) had chronic plaque psoriasis.
Disease worsening occurred at a similar rate in both groups. In the infliximab originator group, 53 patients (26%) experienced a worsening of their symptoms, compared with 61 patients (30%) in the CT-P13 group. The 95% confidence interval of the adjusted risk difference (−4.4%) was −12.7% to 3.9%, which fell within the prespecified noninferiority margin of 15%.
Therefore, the findings demonstrated that CT-P13 is not inferior to infliximab originator, and the adjusted relative risk of disease worsening for CT-P13 patients was 1.17 (95% CI, 0.82-1.52), compared with the infliximab originator group.
An almost equal number of patients achieved disease remission, 123 patients (61%) in the infliximab originator group and 126 patients (61%) in the CT-P13 group, and the adjusted rate difference was 0.6% (95% CI, –7.5%-8.8%; per-protocol set).
An explorative subgroup analysis that looked at patients with Crohn’s disease and ulcerative colitis showed similar findings between patients treated with either agent.
“Our results support switching from the originator to a biosimilar for nonmedical reasons,” concluded Dr. Jørgensen.
However, she urged caution in generalizing these findings to other biologic agents.
The study was funded by the Norwegian Ministry of Health and Care Services. Dr. Jorgensen reported receiving personal fees from Tillotts, Intercept, and Celltrion. Several coauthors also reported relationships with industry.
Digestive Disease Week® is jointly sponsored by the American Association for the Study of Liver Diseases (AASLD), the American Gastroenterological Association (AGA) Institute, the American Society for Gastrointestinal Endoscopy (ASGE), and the Society for Surgery of the Alimentary Tract (SSAT).
AT DDW
Key clinical point: An infliximab biosimilar was not inferior to the originator in terms of efficacy, safety, and immunogenicity in the treatment of inflammatory bowel disease (IBD).
Major finding: In the infliximab originator group, 53 patients (26%) experienced disease worsening, vs. 61 patients (30%) in the CT-P13 group, which fell within the prespecified noninferiority margin of 15%.
Data source: A phase IV randomized trial that included 482 patients with inflammatory bowel disease.
Disclosures: The study was funded by the Norwegian Ministry of Health and Care Services. Dr. Jorgensen reported receiving personal fees from Tillotts, Intercept, and Celltrion. Several coauthors also reported relationships with industry.
Experts bust common sports medicine myths
SAN DIEGO – Is it okay for pregnant women to attend CrossFit classes? Are patients who run for fun at increased risk for osteoarthritis? Does stretching before exercise provide any benefits to athletes?
Experts discussed these topics during a session titled “Mythbusters in sports medicine” at the annual meeting of the American Medical Society for Sports Medicine.
Does exercise negatively impact pregnancy?
The idea that strenuous exercise during pregnancy can harm a baby’s health is a myth, according to Elizabeth A. Joy, MD.
“Women having healthy, uncomplicated pregnancies should be encouraged to be physically active throughout pregnancy, with a goal of achieving 150 minutes per week of moderate-intensity activity,” she said. “Fit pregnant women who were habitually performing high-intensity exercise before pregnancy can continue to do so during pregnancy, assuming an otherwise healthy, uncomplicated pregnancy.”
Results from more than 600 studies in the medical literature indicate that exercise during pregnancy is safe for moms and babies, noted Dr. Joy, medical director for community health and food and nutrition at Intermountain Healthcare in Salt Lake City, Utah.
In fact, the 2008 Physical Activity Guidelines for Americans state that pregnant women who habitually engage in vigorous-intensity aerobic activity or who are highly active “can continue physical activity during pregnancy and the postpartum period, provided that they remain healthy and discuss with their health care provider how and when activity should be adjusted over time.”
Such advice wasn’t always supported by the medical profession. In fact, 1985 guidelines from the American College of Obstetricians and Gynecologists recommended that women limit exercise to no more than 15 minutes at a time during pregnancy and keep their maternal heart rate less than 140 beats per minute. ACOG also discouraged previously sedentary women from beginning an exercise program during pregnancy.
“Sadly, women are still getting this advice,” said Dr. Joy, who is also president of the American College of Sports Medicine. According to the 2005-2010 National Ambulatory Medical Care Survey, only 18% of pregnant women reported receiving counseling to be physically active during their pregnancies (Matern Child Health J. 2014 Sep;18[7]:1610-18). “That is just unacceptable,” she said.
In a prospective study of the association between vigorous physical activity during pregnancy and length of gestation and birth weight, researchers evaluated 1,647 births among primiparous women (Matern Child Health J. 2012 Jul;16[5]:1031-44).
They conducted telephone interviews with the women between 7-20 weeks gestation and assigned metabolic equivalent of task values to self-reported levels of physical activity. Of the 1,647 births, 7% were preterm.
Slightly more than one-third of the women (35%) performed first-trimester vigorous physical activity. The average total vigorous activity reported was 76 minutes per week, 38% of which was vigorous recreational activity.
Women who performed first-trimester vigorous recreational physical activity tended to have lower odds of preterm birth. They also tended to have lighter-weight babies, but this did not reach statistical significance (P = .08). The authors concluded that first-trimester vigorous physical activity “does not appear to be detrimental to the timing of birth or birth weight.”
In a separate analysis, researchers evaluated acute fetal responses to individually prescribed exercise according to existing physical activity guidelines in active and inactive pregnant women (Obstet Gynecol. 2012 Mar;119[3]:603-10).
Of the 45 study participants, 15 were classified as nonexercisers, 15 were regularly active, and 15 were highly active. The women underwent treadmill assessment between 28 weeks and 33 weeks, while fetal assessment included umbilical artery Doppler, fetal heart tracing and rate, and biophysical profile at rest and immediately post exercise.
The researchers observed no differences between the groups in mode of delivery, birth weight, and Apgar scores. During vigorous-intensity exercise, all umbilical artery indices showed decreases post exercise.
“Although statistically significant, this decrease is likely not clinically significant,” the researchers wrote. “We did not identify any adverse acute fetal responses to current exercise recommendations.” They went on to conclude that the potential health benefits of exercise “are too great for [physicians] to miss the opportunity to effectively counsel pregnant women about this important heath-enhancing behavior.”
In a more recent randomized study, Swedish researchers evaluated the efficacy of moderate-to-vigorous resistance exercise in 92 pregnant women (Acta Obstet Gynecol Scand. 2015 Jan; 94[1]:35-42).
The intervention group received supervised resistance exercise twice per week at moderate-to-vigorous intensity between 14-25 weeks of their pregnancy, while the control group received a generalized home exercise program. Outcome measures included health-related quality of life, physical strength, pain, weight, blood pressure, functional status, activity level, and perinatal data.
The researchers found no significant differences between the two groups and concluded that “supervised regular, moderate-to-vigorous resistance exercise performed twice per week does not adversely impact childbirth outcome, pain, or blood pressure.”
Despite all that’s known about exercise during pregnancy, a few practice and research gaps remain.
For one, Dr. Joy said, the relationship between performing physically demanding work during pregnancy in combination with moderate-to-vigorous exercise remains largely unknown.
“Even within health care, you have residents, nurses, and others working in hospitals,” she said. “That’s demanding work, but we don’t know whether or not moderate-to-vigorous exercise in combination with that kind of work is safe. Also, although women tend to thermoregulate better during pregnancy, we still don’t fully understand the impact of elevated core body temperature, which may occur with regularly performed vigorous-intensity exercise over the course of pregnancy.”
Does running cause knee OA?
During another talk at the meeting, William O. Roberts, MD, characterized the notion that running causes knee osteoarthritis as largely a myth for recreational runners. However, elite runners and athletes who participate in other sports may face an increased risk of developing the condition.
Well-established risk factors for knee OA include post–joint injury proteases and cytokines and injury load stress on articular cartilage. “Other risk factors include overweight and obesity, a family history of OA, exercise, heavy work that involved squatting and kneeling, and being female,” said Dr. Roberts, professor of family medicine and community health at the University of Minnesota, Minneapolis.
He discussed three articles on the topic drawn from medical literature. One was a retrospective cross-sectional analysis of 2,637 Osteoarthritis Initiative participants, 45-79 years of age, who had knee-specific pain or knee x-ray data 4 years into the 10-year–long study (Arthritis Care Res. 2017 Feb;69[2]:183-91).
More than half of the participants (56%) were female, their mean body mass index was 28.5 kg/m2, only 20% reported more than 2,000 bouts of running during their lifetime, and about 5% had run competitively.
Adjusted odds ratios of pain, radiographic OA, and symptomatic OA for those prior runners and current runners, compared with those who never ran, were 0.82 and 0.76 (P for trend = .02), 0.98 and 0.91 (P for trend = .05), and 0.88 and 0.71 (P for trend = .03), respectively.
The authors concluded that running does not appear to be detrimental to the knees, and the strength of recommendation taxonomy was rated as 2B.
In a separate analysis, researchers performed a systematic review and meta-analysis of 11 cohort (6 retrospective) and 4 case-control studies related to running and knee arthritis (Am J Sports Med. 2016 May;45[6]:1447-57). The mean ages of subjects at outcome assessment ranged from 27 years to 69 years, and the sample size ranged from 15 to 1,279 participants. The four case control studies assessed exposure by mailed questionnaire or by personal interview.
The meta-analysis suggests that runners have a 50% reduced odds of requiring a total knee replacement because of OA.
“It contradicts some previous studies, and there were confounders,” Dr. Roberts said of the analysis. “The one that I noticed is that people would delay surgery to keep running. That’s what I find in my practice.”
The researchers were unable to link running to knee OA development. Moderate- to low-quality evidence suggests a positive association with OA diagnosis but a negative association with requirement for a total knee replacement.
Based on published evidence, they concluded there is no clear advice to give regarding the potential effect of running on musculoskeletal health and rated the strength of evidence as 1A.
A third study Dr. Roberts discussed investigated the association between specific sports participation and knee OA (J Athl Train. 2015 Jan. 9. doi: 10.4085/1062-6050-50.2.08). After locating nearly 18,000 articles on the topic, the researchers limited their meta-analysis to 17 published studies.
They found that the overall risk of knee OA prevalence in sports participants was 7.7%, compared with 7.3% among nonexposed controls (odds ratio, 0.9). However, risks for knee OA were elevated among those who participated in the following sports: soccer (OR, 3.5), elite long-distance running (OR, 3.3), competitive weightlifting (OR, 6.9), and wrestling (OR, 3.8). The researchers concluded that athletes who participate in those sports “should be targeted for risk-reduction strategies.”
“So, does running cause knee OA? It depends,” said Dr. Roberts, who is also medical director of Twin Cities in Motion. “There is a potential risk to high-volume, high-intensity, and long-distance runners, but there does not appear to be a risk in fitness or recreational runners. Of course, you can’t erase your genetics.”
He called for more research on the topic, including prospective longitudinal outcomes studies, those that study the role of genetics/epigenetics in runners and nonrunners who develop knee OA and those focused on the knee joint “chemical environment,” referring to recent work that suggests that running appears to decrease knee intra-articular proinflammatory cytokine concentration (Eur J Appl Physiol. 2016 Dec;116[11-12]:2305-14).
“It’s okay to run for fitness, because the health benefits far outweigh the risk of knee OA,” Dr. Roberts said. “If you run hard and long, it could be a problem. We probably should be screening for neuromuscular control to reduce anterior cruciate ligament disruption.”
Does it help to stretch before exercise?
Stretching before engaging in exercise is a common practice often recommended by coaches and clinicians – but it appears to have no role in preventing injuries during exercise itself.
Several decades ago, investigators subscribed to muscle spasm theory, which held that unaccustomed exercise caused muscle spasms.
“The thought was that muscle spasms impeded blood flow to the muscle, causing ischemic pain and further spasm,” Valerie E. Cothran, MD, said during a presentation at the meeting. “Stretching the muscle was thought to restore blood flow to the muscle and interrupt the pain-spasm-pain cycle. This theory has been discredited for 40 years, but the practice of stretching before exercise persists.”
According to Dr. Cothran, of the department of family and community medicine at the University of Maryland, Baltimore, a limited number of randomized, controlled trials exist on the topic – and many are fraught with limitations, such as the evaluation of multiple stretching methods and variable types of sports activities and the inclusion of multiple cointerventions.
One systematic review evaluated 361 randomized, controlled trials and cohort studies of interventions that included stretching and that appeared in the medical literature from 1966 to 2002 (Med Sci Sports Exerc. 2004 Mar;36[3]:371-8). Studies with no controls were excluded from the analysis, as were those in which stretching could not be assessed independently or those that did not include people engaged in sports or fitness activities.
The researchers determined that stretching was not significantly associated with a reduction in total injuries (OR, 0.93). “There is not sufficient evidence to endorse or discontinue routine stretching before or after exercise to prevent injury among competitive or recreational athletes,” they concluded.
The following year, Lawrence Hart, MBBch, of McMaster University, Hamilton, Ont., assessed the same set of data but eliminated some of the confounding factors of the previous analysis, including studies that had limited statistical power (Clin J Sport Med. 2005 Mar;15[2]:113). The final meta-analysis included six studies.
Dr. Hart found that neither stretching of specific leg-muscle groups or multiple muscle groups led to a reduction in total injuries, such as shin splints, tibial stress reaction, or sprains/strains (OR, 0.93). In addition, reduction in injuries was not significantly greater for stretching of specific muscles or multiple muscle groups (OR, 0.80, and OR, 0.96, respectively). “Limited evidence showed stretching had no effects on injuries,” he concluded.
A more recent systematic review analyzed the efficacy of static stretching as part of a warm-up for the prevention of exercise-related injury (Res Sports Med. 2008;16[3]:213-31). The researchers reviewed 364 studies published after 1990 but before 2008, and they included seven in the final analysis: four randomized, controlled trials and three controlled trials.
All four randomized, controlled trials concluded that static stretching was ineffective in reducing the incidence of exercise-related injury, and only one of the three controlled trials concluded that static stretching reduced the incidence of exercise-related injury. In addition, three of the seven studies reported significant reductions in musculotendinous and ligament injuries following a static stretching protocol.
“There is moderate to strong evidence that routine application of static stretching does not reduce overall injury rates,” the researchers concluded. “There is preliminary evidence, however, that static stretching may reduce musculotendinous injuries.”
The final study Dr. Cothran discussed was a systematic review of two randomized, controlled trials and two prospective cohort studies on the effect of stretching in sports injury prevention that appeared in the literature between 1998 and 2008 (J Comm Health Sci. 2008;3[1]:51-8).
One cohort study found that stretching reduced the incidence of exercise-related injuries, while two randomized, controlled trials and one cohort study found that stretching did not produce a practical reduction on the occurrence of injuries. The researchers concluded that stretching exercises “do not give a practical, useful reduction in the risk of injuries.”
Some studies have demonstrated that explosive athletic performance such as sprinting may be compromised by acute stretching, noted Dr. Cothran, who is also program director of the primary care sports medicine fellowship at the University of Maryland, Baltimore. Current practice and research gaps include few recent randomized, controlled trials; few studies isolating stretching alone; and few that compare the different forms of stretching, such as dynamic and static stretching, she added.
“There is moderate to strong evidence that routine stretching before exercise will not reduce injury rates,” she concluded. “There is evidence that stretching before exercise may negatively affect performance. Flexibility training can be beneficial but should take place at alternative times and not before exercise.”
Dr. Joy disclosed that she receives funding from Savvysherpa and Dexcom for a project on the prevention of gestational diabetes. Dr. Roberts and Dr. Cothran reported having no financial disclosures.
SAN DIEGO – Is it okay for pregnant women to attend CrossFit classes? Are patients who run for fun at increased risk for osteoarthritis? Does stretching before exercise provide any benefits to athletes?
Experts discussed these topics during a session titled “Mythbusters in sports medicine” at the annual meeting of the American Medical Society for Sports Medicine.
Does exercise negatively impact pregnancy?
The idea that strenuous exercise during pregnancy can harm a baby’s health is a myth, according to Elizabeth A. Joy, MD.
“Women having healthy, uncomplicated pregnancies should be encouraged to be physically active throughout pregnancy, with a goal of achieving 150 minutes per week of moderate-intensity activity,” she said. “Fit pregnant women who were habitually performing high-intensity exercise before pregnancy can continue to do so during pregnancy, assuming an otherwise healthy, uncomplicated pregnancy.”
Results from more than 600 studies in the medical literature indicate that exercise during pregnancy is safe for moms and babies, noted Dr. Joy, medical director for community health and food and nutrition at Intermountain Healthcare in Salt Lake City, Utah.
In fact, the 2008 Physical Activity Guidelines for Americans state that pregnant women who habitually engage in vigorous-intensity aerobic activity or who are highly active “can continue physical activity during pregnancy and the postpartum period, provided that they remain healthy and discuss with their health care provider how and when activity should be adjusted over time.”
Such advice wasn’t always supported by the medical profession. In fact, 1985 guidelines from the American College of Obstetricians and Gynecologists recommended that women limit exercise to no more than 15 minutes at a time during pregnancy and keep their maternal heart rate less than 140 beats per minute. ACOG also discouraged previously sedentary women from beginning an exercise program during pregnancy.
“Sadly, women are still getting this advice,” said Dr. Joy, who is also president of the American College of Sports Medicine. According to the 2005-2010 National Ambulatory Medical Care Survey, only 18% of pregnant women reported receiving counseling to be physically active during their pregnancies (Matern Child Health J. 2014 Sep;18[7]:1610-18). “That is just unacceptable,” she said.
In a prospective study of the association between vigorous physical activity during pregnancy and length of gestation and birth weight, researchers evaluated 1,647 births among primiparous women (Matern Child Health J. 2012 Jul;16[5]:1031-44).
They conducted telephone interviews with the women between 7-20 weeks gestation and assigned metabolic equivalent of task values to self-reported levels of physical activity. Of the 1,647 births, 7% were preterm.
Slightly more than one-third of the women (35%) performed first-trimester vigorous physical activity. The average total vigorous activity reported was 76 minutes per week, 38% of which was vigorous recreational activity.
Women who performed first-trimester vigorous recreational physical activity tended to have lower odds of preterm birth. They also tended to have lighter-weight babies, but this did not reach statistical significance (P = .08). The authors concluded that first-trimester vigorous physical activity “does not appear to be detrimental to the timing of birth or birth weight.”
In a separate analysis, researchers evaluated acute fetal responses to individually prescribed exercise according to existing physical activity guidelines in active and inactive pregnant women (Obstet Gynecol. 2012 Mar;119[3]:603-10).
Of the 45 study participants, 15 were classified as nonexercisers, 15 were regularly active, and 15 were highly active. The women underwent treadmill assessment between 28 weeks and 33 weeks, while fetal assessment included umbilical artery Doppler, fetal heart tracing and rate, and biophysical profile at rest and immediately post exercise.
The researchers observed no differences between the groups in mode of delivery, birth weight, and Apgar scores. During vigorous-intensity exercise, all umbilical artery indices showed decreases post exercise.
“Although statistically significant, this decrease is likely not clinically significant,” the researchers wrote. “We did not identify any adverse acute fetal responses to current exercise recommendations.” They went on to conclude that the potential health benefits of exercise “are too great for [physicians] to miss the opportunity to effectively counsel pregnant women about this important heath-enhancing behavior.”
In a more recent randomized study, Swedish researchers evaluated the efficacy of moderate-to-vigorous resistance exercise in 92 pregnant women (Acta Obstet Gynecol Scand. 2015 Jan; 94[1]:35-42).
The intervention group received supervised resistance exercise twice per week at moderate-to-vigorous intensity between 14-25 weeks of their pregnancy, while the control group received a generalized home exercise program. Outcome measures included health-related quality of life, physical strength, pain, weight, blood pressure, functional status, activity level, and perinatal data.
The researchers found no significant differences between the two groups and concluded that “supervised regular, moderate-to-vigorous resistance exercise performed twice per week does not adversely impact childbirth outcome, pain, or blood pressure.”
Despite all that’s known about exercise during pregnancy, a few practice and research gaps remain.
For one, Dr. Joy said, the relationship between performing physically demanding work during pregnancy in combination with moderate-to-vigorous exercise remains largely unknown.
“Even within health care, you have residents, nurses, and others working in hospitals,” she said. “That’s demanding work, but we don’t know whether or not moderate-to-vigorous exercise in combination with that kind of work is safe. Also, although women tend to thermoregulate better during pregnancy, we still don’t fully understand the impact of elevated core body temperature, which may occur with regularly performed vigorous-intensity exercise over the course of pregnancy.”
Does running cause knee OA?
During another talk at the meeting, William O. Roberts, MD, characterized the notion that running causes knee osteoarthritis as largely a myth for recreational runners. However, elite runners and athletes who participate in other sports may face an increased risk of developing the condition.
Well-established risk factors for knee OA include post–joint injury proteases and cytokines and injury load stress on articular cartilage. “Other risk factors include overweight and obesity, a family history of OA, exercise, heavy work that involved squatting and kneeling, and being female,” said Dr. Roberts, professor of family medicine and community health at the University of Minnesota, Minneapolis.
He discussed three articles on the topic drawn from medical literature. One was a retrospective cross-sectional analysis of 2,637 Osteoarthritis Initiative participants, 45-79 years of age, who had knee-specific pain or knee x-ray data 4 years into the 10-year–long study (Arthritis Care Res. 2017 Feb;69[2]:183-91).
More than half of the participants (56%) were female, their mean body mass index was 28.5 kg/m2, only 20% reported more than 2,000 bouts of running during their lifetime, and about 5% had run competitively.
Adjusted odds ratios of pain, radiographic OA, and symptomatic OA for those prior runners and current runners, compared with those who never ran, were 0.82 and 0.76 (P for trend = .02), 0.98 and 0.91 (P for trend = .05), and 0.88 and 0.71 (P for trend = .03), respectively.
The authors concluded that running does not appear to be detrimental to the knees, and the strength of recommendation taxonomy was rated as 2B.
In a separate analysis, researchers performed a systematic review and meta-analysis of 11 cohort (6 retrospective) and 4 case-control studies related to running and knee arthritis (Am J Sports Med. 2016 May;45[6]:1447-57). The mean ages of subjects at outcome assessment ranged from 27 years to 69 years, and the sample size ranged from 15 to 1,279 participants. The four case control studies assessed exposure by mailed questionnaire or by personal interview.
The meta-analysis suggests that runners have a 50% reduced odds of requiring a total knee replacement because of OA.
“It contradicts some previous studies, and there were confounders,” Dr. Roberts said of the analysis. “The one that I noticed is that people would delay surgery to keep running. That’s what I find in my practice.”
The researchers were unable to link running to knee OA development. Moderate- to low-quality evidence suggests a positive association with OA diagnosis but a negative association with requirement for a total knee replacement.
Based on published evidence, they concluded there is no clear advice to give regarding the potential effect of running on musculoskeletal health and rated the strength of evidence as 1A.
A third study Dr. Roberts discussed investigated the association between specific sports participation and knee OA (J Athl Train. 2015 Jan. 9. doi: 10.4085/1062-6050-50.2.08). After locating nearly 18,000 articles on the topic, the researchers limited their meta-analysis to 17 published studies.
They found that the overall risk of knee OA prevalence in sports participants was 7.7%, compared with 7.3% among nonexposed controls (odds ratio, 0.9). However, risks for knee OA were elevated among those who participated in the following sports: soccer (OR, 3.5), elite long-distance running (OR, 3.3), competitive weightlifting (OR, 6.9), and wrestling (OR, 3.8). The researchers concluded that athletes who participate in those sports “should be targeted for risk-reduction strategies.”
“So, does running cause knee OA? It depends,” said Dr. Roberts, who is also medical director of Twin Cities in Motion. “There is a potential risk to high-volume, high-intensity, and long-distance runners, but there does not appear to be a risk in fitness or recreational runners. Of course, you can’t erase your genetics.”
He called for more research on the topic, including prospective longitudinal outcomes studies, those that study the role of genetics/epigenetics in runners and nonrunners who develop knee OA and those focused on the knee joint “chemical environment,” referring to recent work that suggests that running appears to decrease knee intra-articular proinflammatory cytokine concentration (Eur J Appl Physiol. 2016 Dec;116[11-12]:2305-14).
“It’s okay to run for fitness, because the health benefits far outweigh the risk of knee OA,” Dr. Roberts said. “If you run hard and long, it could be a problem. We probably should be screening for neuromuscular control to reduce anterior cruciate ligament disruption.”
Does it help to stretch before exercise?
Stretching before engaging in exercise is a common practice often recommended by coaches and clinicians – but it appears to have no role in preventing injuries during exercise itself.
Several decades ago, investigators subscribed to muscle spasm theory, which held that unaccustomed exercise caused muscle spasms.
“The thought was that muscle spasms impeded blood flow to the muscle, causing ischemic pain and further spasm,” Valerie E. Cothran, MD, said during a presentation at the meeting. “Stretching the muscle was thought to restore blood flow to the muscle and interrupt the pain-spasm-pain cycle. This theory has been discredited for 40 years, but the practice of stretching before exercise persists.”
According to Dr. Cothran, of the department of family and community medicine at the University of Maryland, Baltimore, a limited number of randomized, controlled trials exist on the topic – and many are fraught with limitations, such as the evaluation of multiple stretching methods and variable types of sports activities and the inclusion of multiple cointerventions.
One systematic review evaluated 361 randomized, controlled trials and cohort studies of interventions that included stretching and that appeared in the medical literature from 1966 to 2002 (Med Sci Sports Exerc. 2004 Mar;36[3]:371-8). Studies with no controls were excluded from the analysis, as were those in which stretching could not be assessed independently or those that did not include people engaged in sports or fitness activities.
The researchers determined that stretching was not significantly associated with a reduction in total injuries (OR, 0.93). “There is not sufficient evidence to endorse or discontinue routine stretching before or after exercise to prevent injury among competitive or recreational athletes,” they concluded.
The following year, Lawrence Hart, MBBch, of McMaster University, Hamilton, Ont., assessed the same set of data but eliminated some of the confounding factors of the previous analysis, including studies that had limited statistical power (Clin J Sport Med. 2005 Mar;15[2]:113). The final meta-analysis included six studies.
Dr. Hart found that neither stretching of specific leg-muscle groups or multiple muscle groups led to a reduction in total injuries, such as shin splints, tibial stress reaction, or sprains/strains (OR, 0.93). In addition, reduction in injuries was not significantly greater for stretching of specific muscles or multiple muscle groups (OR, 0.80, and OR, 0.96, respectively). “Limited evidence showed stretching had no effects on injuries,” he concluded.
A more recent systematic review analyzed the efficacy of static stretching as part of a warm-up for the prevention of exercise-related injury (Res Sports Med. 2008;16[3]:213-31). The researchers reviewed 364 studies published after 1990 but before 2008, and they included seven in the final analysis: four randomized, controlled trials and three controlled trials.
All four randomized, controlled trials concluded that static stretching was ineffective in reducing the incidence of exercise-related injury, and only one of the three controlled trials concluded that static stretching reduced the incidence of exercise-related injury. In addition, three of the seven studies reported significant reductions in musculotendinous and ligament injuries following a static stretching protocol.
“There is moderate to strong evidence that routine application of static stretching does not reduce overall injury rates,” the researchers concluded. “There is preliminary evidence, however, that static stretching may reduce musculotendinous injuries.”
The final study Dr. Cothran discussed was a systematic review of two randomized, controlled trials and two prospective cohort studies on the effect of stretching in sports injury prevention that appeared in the literature between 1998 and 2008 (J Comm Health Sci. 2008;3[1]:51-8).
One cohort study found that stretching reduced the incidence of exercise-related injuries, while two randomized, controlled trials and one cohort study found that stretching did not produce a practical reduction on the occurrence of injuries. The researchers concluded that stretching exercises “do not give a practical, useful reduction in the risk of injuries.”
Some studies have demonstrated that explosive athletic performance such as sprinting may be compromised by acute stretching, noted Dr. Cothran, who is also program director of the primary care sports medicine fellowship at the University of Maryland, Baltimore. Current practice and research gaps include few recent randomized, controlled trials; few studies isolating stretching alone; and few that compare the different forms of stretching, such as dynamic and static stretching, she added.
“There is moderate to strong evidence that routine stretching before exercise will not reduce injury rates,” she concluded. “There is evidence that stretching before exercise may negatively affect performance. Flexibility training can be beneficial but should take place at alternative times and not before exercise.”
Dr. Joy disclosed that she receives funding from Savvysherpa and Dexcom for a project on the prevention of gestational diabetes. Dr. Roberts and Dr. Cothran reported having no financial disclosures.
SAN DIEGO – Is it okay for pregnant women to attend CrossFit classes? Are patients who run for fun at increased risk for osteoarthritis? Does stretching before exercise provide any benefits to athletes?
Experts discussed these topics during a session titled “Mythbusters in sports medicine” at the annual meeting of the American Medical Society for Sports Medicine.
Does exercise negatively impact pregnancy?
The idea that strenuous exercise during pregnancy can harm a baby’s health is a myth, according to Elizabeth A. Joy, MD.
“Women having healthy, uncomplicated pregnancies should be encouraged to be physically active throughout pregnancy, with a goal of achieving 150 minutes per week of moderate-intensity activity,” she said. “Fit pregnant women who were habitually performing high-intensity exercise before pregnancy can continue to do so during pregnancy, assuming an otherwise healthy, uncomplicated pregnancy.”
Results from more than 600 studies in the medical literature indicate that exercise during pregnancy is safe for moms and babies, noted Dr. Joy, medical director for community health and food and nutrition at Intermountain Healthcare in Salt Lake City, Utah.
In fact, the 2008 Physical Activity Guidelines for Americans state that pregnant women who habitually engage in vigorous-intensity aerobic activity or who are highly active “can continue physical activity during pregnancy and the postpartum period, provided that they remain healthy and discuss with their health care provider how and when activity should be adjusted over time.”
Such advice wasn’t always supported by the medical profession. In fact, 1985 guidelines from the American College of Obstetricians and Gynecologists recommended that women limit exercise to no more than 15 minutes at a time during pregnancy and keep their maternal heart rate less than 140 beats per minute. ACOG also discouraged previously sedentary women from beginning an exercise program during pregnancy.
“Sadly, women are still getting this advice,” said Dr. Joy, who is also president of the American College of Sports Medicine. According to the 2005-2010 National Ambulatory Medical Care Survey, only 18% of pregnant women reported receiving counseling to be physically active during their pregnancies (Matern Child Health J. 2014 Sep;18[7]:1610-18). “That is just unacceptable,” she said.
In a prospective study of the association between vigorous physical activity during pregnancy and length of gestation and birth weight, researchers evaluated 1,647 births among primiparous women (Matern Child Health J. 2012 Jul;16[5]:1031-44).
They conducted telephone interviews with the women between 7-20 weeks gestation and assigned metabolic equivalent of task values to self-reported levels of physical activity. Of the 1,647 births, 7% were preterm.
Slightly more than one-third of the women (35%) performed first-trimester vigorous physical activity. The average total vigorous activity reported was 76 minutes per week, 38% of which was vigorous recreational activity.
Women who performed first-trimester vigorous recreational physical activity tended to have lower odds of preterm birth. They also tended to have lighter-weight babies, but this did not reach statistical significance (P = .08). The authors concluded that first-trimester vigorous physical activity “does not appear to be detrimental to the timing of birth or birth weight.”
In a separate analysis, researchers evaluated acute fetal responses to individually prescribed exercise according to existing physical activity guidelines in active and inactive pregnant women (Obstet Gynecol. 2012 Mar;119[3]:603-10).
Of the 45 study participants, 15 were classified as nonexercisers, 15 were regularly active, and 15 were highly active. The women underwent treadmill assessment between 28 weeks and 33 weeks, while fetal assessment included umbilical artery Doppler, fetal heart tracing and rate, and biophysical profile at rest and immediately post exercise.
The researchers observed no differences between the groups in mode of delivery, birth weight, and Apgar scores. During vigorous-intensity exercise, all umbilical artery indices showed decreases post exercise.
“Although statistically significant, this decrease is likely not clinically significant,” the researchers wrote. “We did not identify any adverse acute fetal responses to current exercise recommendations.” They went on to conclude that the potential health benefits of exercise “are too great for [physicians] to miss the opportunity to effectively counsel pregnant women about this important heath-enhancing behavior.”
In a more recent randomized study, Swedish researchers evaluated the efficacy of moderate-to-vigorous resistance exercise in 92 pregnant women (Acta Obstet Gynecol Scand. 2015 Jan; 94[1]:35-42).
The intervention group received supervised resistance exercise twice per week at moderate-to-vigorous intensity between 14-25 weeks of their pregnancy, while the control group received a generalized home exercise program. Outcome measures included health-related quality of life, physical strength, pain, weight, blood pressure, functional status, activity level, and perinatal data.
The researchers found no significant differences between the two groups and concluded that “supervised regular, moderate-to-vigorous resistance exercise performed twice per week does not adversely impact childbirth outcome, pain, or blood pressure.”
Despite all that’s known about exercise during pregnancy, a few practice and research gaps remain.
For one, Dr. Joy said, the relationship between performing physically demanding work during pregnancy in combination with moderate-to-vigorous exercise remains largely unknown.
“Even within health care, you have residents, nurses, and others working in hospitals,” she said. “That’s demanding work, but we don’t know whether or not moderate-to-vigorous exercise in combination with that kind of work is safe. Also, although women tend to thermoregulate better during pregnancy, we still don’t fully understand the impact of elevated core body temperature, which may occur with regularly performed vigorous-intensity exercise over the course of pregnancy.”
Does running cause knee OA?
During another talk at the meeting, William O. Roberts, MD, characterized the notion that running causes knee osteoarthritis as largely a myth for recreational runners. However, elite runners and athletes who participate in other sports may face an increased risk of developing the condition.
Well-established risk factors for knee OA include post–joint injury proteases and cytokines and injury load stress on articular cartilage. “Other risk factors include overweight and obesity, a family history of OA, exercise, heavy work that involved squatting and kneeling, and being female,” said Dr. Roberts, professor of family medicine and community health at the University of Minnesota, Minneapolis.
He discussed three articles on the topic drawn from medical literature. One was a retrospective cross-sectional analysis of 2,637 Osteoarthritis Initiative participants, 45-79 years of age, who had knee-specific pain or knee x-ray data 4 years into the 10-year–long study (Arthritis Care Res. 2017 Feb;69[2]:183-91).
More than half of the participants (56%) were female, their mean body mass index was 28.5 kg/m2, only 20% reported more than 2,000 bouts of running during their lifetime, and about 5% had run competitively.
Adjusted odds ratios of pain, radiographic OA, and symptomatic OA for those prior runners and current runners, compared with those who never ran, were 0.82 and 0.76 (P for trend = .02), 0.98 and 0.91 (P for trend = .05), and 0.88 and 0.71 (P for trend = .03), respectively.
The authors concluded that running does not appear to be detrimental to the knees, and the strength of recommendation taxonomy was rated as 2B.
In a separate analysis, researchers performed a systematic review and meta-analysis of 11 cohort (6 retrospective) and 4 case-control studies related to running and knee arthritis (Am J Sports Med. 2016 May;45[6]:1447-57). The mean ages of subjects at outcome assessment ranged from 27 years to 69 years, and the sample size ranged from 15 to 1,279 participants. The four case control studies assessed exposure by mailed questionnaire or by personal interview.
The meta-analysis suggests that runners have a 50% reduced odds of requiring a total knee replacement because of OA.
“It contradicts some previous studies, and there were confounders,” Dr. Roberts said of the analysis. “The one that I noticed is that people would delay surgery to keep running. That’s what I find in my practice.”
The researchers were unable to link running to knee OA development. Moderate- to low-quality evidence suggests a positive association with OA diagnosis but a negative association with requirement for a total knee replacement.
Based on published evidence, they concluded there is no clear advice to give regarding the potential effect of running on musculoskeletal health and rated the strength of evidence as 1A.
A third study Dr. Roberts discussed investigated the association between specific sports participation and knee OA (J Athl Train. 2015 Jan. 9. doi: 10.4085/1062-6050-50.2.08). After locating nearly 18,000 articles on the topic, the researchers limited their meta-analysis to 17 published studies.
They found that the overall risk of knee OA prevalence in sports participants was 7.7%, compared with 7.3% among nonexposed controls (odds ratio, 0.9). However, risks for knee OA were elevated among those who participated in the following sports: soccer (OR, 3.5), elite long-distance running (OR, 3.3), competitive weightlifting (OR, 6.9), and wrestling (OR, 3.8). The researchers concluded that athletes who participate in those sports “should be targeted for risk-reduction strategies.”
“So, does running cause knee OA? It depends,” said Dr. Roberts, who is also medical director of Twin Cities in Motion. “There is a potential risk to high-volume, high-intensity, and long-distance runners, but there does not appear to be a risk in fitness or recreational runners. Of course, you can’t erase your genetics.”
He called for more research on the topic, including prospective longitudinal outcomes studies, those that study the role of genetics/epigenetics in runners and nonrunners who develop knee OA and those focused on the knee joint “chemical environment,” referring to recent work that suggests that running appears to decrease knee intra-articular proinflammatory cytokine concentration (Eur J Appl Physiol. 2016 Dec;116[11-12]:2305-14).
“It’s okay to run for fitness, because the health benefits far outweigh the risk of knee OA,” Dr. Roberts said. “If you run hard and long, it could be a problem. We probably should be screening for neuromuscular control to reduce anterior cruciate ligament disruption.”
Does it help to stretch before exercise?
Stretching before engaging in exercise is a common practice often recommended by coaches and clinicians – but it appears to have no role in preventing injuries during exercise itself.
Several decades ago, investigators subscribed to muscle spasm theory, which held that unaccustomed exercise caused muscle spasms.
“The thought was that muscle spasms impeded blood flow to the muscle, causing ischemic pain and further spasm,” Valerie E. Cothran, MD, said during a presentation at the meeting. “Stretching the muscle was thought to restore blood flow to the muscle and interrupt the pain-spasm-pain cycle. This theory has been discredited for 40 years, but the practice of stretching before exercise persists.”
According to Dr. Cothran, of the department of family and community medicine at the University of Maryland, Baltimore, a limited number of randomized, controlled trials exist on the topic – and many are fraught with limitations, such as the evaluation of multiple stretching methods and variable types of sports activities and the inclusion of multiple cointerventions.
One systematic review evaluated 361 randomized, controlled trials and cohort studies of interventions that included stretching and that appeared in the medical literature from 1966 to 2002 (Med Sci Sports Exerc. 2004 Mar;36[3]:371-8). Studies with no controls were excluded from the analysis, as were those in which stretching could not be assessed independently or those that did not include people engaged in sports or fitness activities.
The researchers determined that stretching was not significantly associated with a reduction in total injuries (OR, 0.93). “There is not sufficient evidence to endorse or discontinue routine stretching before or after exercise to prevent injury among competitive or recreational athletes,” they concluded.
The following year, Lawrence Hart, MBBch, of McMaster University, Hamilton, Ont., assessed the same set of data but eliminated some of the confounding factors of the previous analysis, including studies that had limited statistical power (Clin J Sport Med. 2005 Mar;15[2]:113). The final meta-analysis included six studies.
Dr. Hart found that neither stretching of specific leg-muscle groups or multiple muscle groups led to a reduction in total injuries, such as shin splints, tibial stress reaction, or sprains/strains (OR, 0.93). In addition, reduction in injuries was not significantly greater for stretching of specific muscles or multiple muscle groups (OR, 0.80, and OR, 0.96, respectively). “Limited evidence showed stretching had no effects on injuries,” he concluded.
A more recent systematic review analyzed the efficacy of static stretching as part of a warm-up for the prevention of exercise-related injury (Res Sports Med. 2008;16[3]:213-31). The researchers reviewed 364 studies published after 1990 but before 2008, and they included seven in the final analysis: four randomized, controlled trials and three controlled trials.
All four randomized, controlled trials concluded that static stretching was ineffective in reducing the incidence of exercise-related injury, and only one of the three controlled trials concluded that static stretching reduced the incidence of exercise-related injury. In addition, three of the seven studies reported significant reductions in musculotendinous and ligament injuries following a static stretching protocol.
“There is moderate to strong evidence that routine application of static stretching does not reduce overall injury rates,” the researchers concluded. “There is preliminary evidence, however, that static stretching may reduce musculotendinous injuries.”
The final study Dr. Cothran discussed was a systematic review of two randomized, controlled trials and two prospective cohort studies on the effect of stretching in sports injury prevention that appeared in the literature between 1998 and 2008 (J Comm Health Sci. 2008;3[1]:51-8).
One cohort study found that stretching reduced the incidence of exercise-related injuries, while two randomized, controlled trials and one cohort study found that stretching did not produce a practical reduction on the occurrence of injuries. The researchers concluded that stretching exercises “do not give a practical, useful reduction in the risk of injuries.”
Some studies have demonstrated that explosive athletic performance such as sprinting may be compromised by acute stretching, noted Dr. Cothran, who is also program director of the primary care sports medicine fellowship at the University of Maryland, Baltimore. Current practice and research gaps include few recent randomized, controlled trials; few studies isolating stretching alone; and few that compare the different forms of stretching, such as dynamic and static stretching, she added.
“There is moderate to strong evidence that routine stretching before exercise will not reduce injury rates,” she concluded. “There is evidence that stretching before exercise may negatively affect performance. Flexibility training can be beneficial but should take place at alternative times and not before exercise.”
Dr. Joy disclosed that she receives funding from Savvysherpa and Dexcom for a project on the prevention of gestational diabetes. Dr. Roberts and Dr. Cothran reported having no financial disclosures.
AKI doubles risk of death for those with acute pancreatitis
CHICAGO – Acute kidney injury (AKI) doubles the risk of death among patients hospitalized for acute pancreatitis, Kalpit Devani, MD, reported at the annual Digestive Disease Week®.
This severe complication of acute pancreatitis also significantly increases the length of stay and drives up hospital costs, said Dr. Devani of East Tennessee State University, Johnson City. Fortunately, although the risks associated with it remain high, death from AKI in the setting of acute pancreatitis has decreased significantly, from a high of 17% in 2002 to 6.4% in 2012, Dr. Devani determined in his database review.
“Increasing awareness and prompt diagnosis of AKI could be the reason for the increasing trend of prevalence of AKI in acute pancreatitis patients,” he said in an interview. “Decreasing mortality can be related to adherence to recent advances in the management approach of acute pancreatitis, such as early (within 24 hours) and aggressive intravenous hydration and early enteral feeding.”
Dr. Devani examined these trends in data extracted from the National Inpatient Sample, 2002-2012. During that 10-year period, almost 3.5 million adults were hospitalized for acute pancreatitis. These patients were a mean of 53 years old, and half were women. Their mean length of stay was just over 5 days, at a mean cost of about $12,000. Of these, 273,687 (7.9%) also developed AKI.
There were some significant differences between those who did and did not develop AKI. AKI patients were significantly older (61 vs. 53 years), and less likely to be women (43% vs. 51%). They had a higher Charlson Comorbidity Index score (1.49 vs. 0.84). They were also significantly more likely to develop a number of complications, including systemic inflammatory response syndrome (2% vs. 0.4%), septic shock (6% vs. 0.3%), sepsis (8.7% vs. 1.4%), acute respiratory failure (18% vs. 2%), and electrolyte disorder (72% vs. 30%).
Not surprisingly, their length of stay was significantly longer (10 vs. 5 days), as was hospitalization cost ($25,923 vs. $10,889). Mortality was much higher, at almost 9% vs. 0.7%.
In a propensity matching analysis, Dr. Devani matched 53,000 pairs of acute pancreatitis patients with and without AKI. This determined that those with AKI faced a doubling in the risk of in-hospital mortality.
He also examined temporal trends with regard to the complication. The rate of diagnosed AKI in hospitalized acute pancreatitis cases rose dramatically, from 4% in 2002 to 11.6% in 2012. However, mortality in acute pancreatitis patients decreased among both those with AKI (17%-6%) and those without (1%-0.4%).
The mean length of stay in patients with AKI and pancreatitis likewise fell, from 14.8 to 8.6 days. Not surprisingly, total hospitalization cost for these patients fell as well ($42,975-$20,716).
Among pancreatitis patients without AKI, length of stay and costs declined, although not as dramatically as they did among AKI patients (6-5 days; $13,654-$10,895).
Dr. Devani had no financial disclosures.
msullivan@frontlinemedcom.com
On Twitter @alz_gal
CHICAGO – Acute kidney injury (AKI) doubles the risk of death among patients hospitalized for acute pancreatitis, Kalpit Devani, MD, reported at the annual Digestive Disease Week®.
This severe complication of acute pancreatitis also significantly increases the length of stay and drives up hospital costs, said Dr. Devani of East Tennessee State University, Johnson City. Fortunately, although the risks associated with it remain high, death from AKI in the setting of acute pancreatitis has decreased significantly, from a high of 17% in 2002 to 6.4% in 2012, Dr. Devani determined in his database review.
“Increasing awareness and prompt diagnosis of AKI could be the reason for the increasing trend of prevalence of AKI in acute pancreatitis patients,” he said in an interview. “Decreasing mortality can be related to adherence to recent advances in the management approach of acute pancreatitis, such as early (within 24 hours) and aggressive intravenous hydration and early enteral feeding.”
Dr. Devani examined these trends in data extracted from the National Inpatient Sample, 2002-2012. During that 10-year period, almost 3.5 million adults were hospitalized for acute pancreatitis. These patients were a mean of 53 years old, and half were women. Their mean length of stay was just over 5 days, at a mean cost of about $12,000. Of these, 273,687 (7.9%) also developed AKI.
There were some significant differences between those who did and did not develop AKI. AKI patients were significantly older (61 vs. 53 years), and less likely to be women (43% vs. 51%). They had a higher Charlson Comorbidity Index score (1.49 vs. 0.84). They were also significantly more likely to develop a number of complications, including systemic inflammatory response syndrome (2% vs. 0.4%), septic shock (6% vs. 0.3%), sepsis (8.7% vs. 1.4%), acute respiratory failure (18% vs. 2%), and electrolyte disorder (72% vs. 30%).
Not surprisingly, their length of stay was significantly longer (10 vs. 5 days), as was hospitalization cost ($25,923 vs. $10,889). Mortality was much higher, at almost 9% vs. 0.7%.
In a propensity matching analysis, Dr. Devani matched 53,000 pairs of acute pancreatitis patients with and without AKI. This determined that those with AKI faced a doubling in the risk of in-hospital mortality.
He also examined temporal trends with regard to the complication. The rate of diagnosed AKI in hospitalized acute pancreatitis cases rose dramatically, from 4% in 2002 to 11.6% in 2012. However, mortality in acute pancreatitis patients decreased among both those with AKI (17%-6%) and those without (1%-0.4%).
The mean length of stay in patients with AKI and pancreatitis likewise fell, from 14.8 to 8.6 days. Not surprisingly, total hospitalization cost for these patients fell as well ($42,975-$20,716).
Among pancreatitis patients without AKI, length of stay and costs declined, although not as dramatically as they did among AKI patients (6-5 days; $13,654-$10,895).
Dr. Devani had no financial disclosures.
msullivan@frontlinemedcom.com
On Twitter @alz_gal
CHICAGO – Acute kidney injury (AKI) doubles the risk of death among patients hospitalized for acute pancreatitis, Kalpit Devani, MD, reported at the annual Digestive Disease Week®.
This severe complication of acute pancreatitis also significantly increases the length of stay and drives up hospital costs, said Dr. Devani of East Tennessee State University, Johnson City. Fortunately, although the risks associated with it remain high, death from AKI in the setting of acute pancreatitis has decreased significantly, from a high of 17% in 2002 to 6.4% in 2012, Dr. Devani determined in his database review.
“Increasing awareness and prompt diagnosis of AKI could be the reason for the increasing trend of prevalence of AKI in acute pancreatitis patients,” he said in an interview. “Decreasing mortality can be related to adherence to recent advances in the management approach of acute pancreatitis, such as early (within 24 hours) and aggressive intravenous hydration and early enteral feeding.”
Dr. Devani examined these trends in data extracted from the National Inpatient Sample, 2002-2012. During that 10-year period, almost 3.5 million adults were hospitalized for acute pancreatitis. These patients were a mean of 53 years old, and half were women. Their mean length of stay was just over 5 days, at a mean cost of about $12,000. Of these, 273,687 (7.9%) also developed AKI.
There were some significant differences between those who did and did not develop AKI. AKI patients were significantly older (61 vs. 53 years), and less likely to be women (43% vs. 51%). They had a higher Charlson Comorbidity Index score (1.49 vs. 0.84). They were also significantly more likely to develop a number of complications, including systemic inflammatory response syndrome (2% vs. 0.4%), septic shock (6% vs. 0.3%), sepsis (8.7% vs. 1.4%), acute respiratory failure (18% vs. 2%), and electrolyte disorder (72% vs. 30%).
Not surprisingly, their length of stay was significantly longer (10 vs. 5 days), as was hospitalization cost ($25,923 vs. $10,889). Mortality was much higher, at almost 9% vs. 0.7%.
In a propensity matching analysis, Dr. Devani matched 53,000 pairs of acute pancreatitis patients with and without AKI. This determined that those with AKI faced a doubling in the risk of in-hospital mortality.
He also examined temporal trends with regard to the complication. The rate of diagnosed AKI in hospitalized acute pancreatitis cases rose dramatically, from 4% in 2002 to 11.6% in 2012. However, mortality in acute pancreatitis patients decreased among both those with AKI (17%-6%) and those without (1%-0.4%).
The mean length of stay in patients with AKI and pancreatitis likewise fell, from 14.8 to 8.6 days. Not surprisingly, total hospitalization cost for these patients fell as well ($42,975-$20,716).
Among pancreatitis patients without AKI, length of stay and costs declined, although not as dramatically as they did among AKI patients (6-5 days; $13,654-$10,895).
Dr. Devani had no financial disclosures.
msullivan@frontlinemedcom.com
On Twitter @alz_gal
AT DDW
Key clinical point:
Major finding: Mortality among those with AKI was 9% vs. 0.7% among those without. After controlling for confounders, the risk of death was doubled.
Data source: A 10-year National Inpatient Sample database review comprising 3.5 million patients with pancreatitis.
Disclosures: Dr. Devani had no financial disclosures.
Bariatric patients can conquer obesity, but few achieve BMI < 25
Around one-quarter of obese individuals who undergo Roux-en-Y gastric bypass had sustained, long-term remission of obesity, but far fewer achieved body mass index of under 25 kg/m2 or maintained it over 5 years, new research suggests.
Researchers reported on the outcomes of a retrospective cohort study of 219 patients who underwent Roux-en-Y gastric bypass surgery at a single center between 2008 and 2010 and were followed for up to 7 years after the procedure.
Only 16.9% of female patients achieved a BMI of under 25 kg/m2 – during the study period, and only 2.7% reached this BMI by year 2 and sustained it at least to year 5 of follow-up.
Two males in the study achieved BMI of under 25 during follow-up. One was recorded as having maintained this weight at year 1 and the other at year 4, but no further measurements were available for either.
“Given the low number of patients achieving BMI of less than 25 kg/m2, we also wanted to focus on another important clinical goal of obesity remission (BMI less than 30),” wrote Corey J. Lager, MD, of the University of Michigan, Brehm Center for Diabetes, Ann Arbor, and his coauthors. “Taking into account that the mean BMI prior to surgery in our cohort was 47.1 kg/m2, this target is associated with significant estimated health benefits and likely brings a mortality benefit for patients undergoing gastric bypass.”
The authors said that a conservative estimate of the probability of achieving and sustaining BMI 25 or less after Roux-en-Y gastric bypass was just 2.3%. However, they offered a more liberal estimate – based on the number of patients who were at BMI 25 or under at the last available data point – of 6.8%.
Achieving weight loss to a BMI less than 30 was significantly influenced by age. The group who achieved this weight were on average 3 years younger at baseline than those who did not.
Similarly, initial BMI played a role in outcomes. The women who achieved a BMI below 30 had an initial mean BMI of 43.5, compared with 50.4 in the women who did not achieve this weight (P less than .0001). In males, the mean baseline BMI in those who got their weight below 30 was 44.6, compared with 48.1 in those who did not (P = .18).
Roux-en-Y gastric bypass was also associated with significant and sustained decreases in both systolic and diastolic blood pressure that was similar for both sexes. The maximum mean decrease of 14 ± 7 mm Hg was achieved at 1 year after surgery, and, at 5 years, the mean decrease was 11 ± 3 mm Hg.
The authors commented that, despite “excellent” weight loss being achieved by a majority of patients, the findings show the challenge of weight loss and maintenance in patients with a very high BMI. However, they also pointed to the encouragingly low rates of significant weight regain and the fact that fewer than 1% of patients returned to a weight greater than their preoperative weight. Higher preoperative BMI was correlated with greater weight loss but also negatively correlated with achieving BMI under 30.
The authors concluded with two takeaway messages. First, realistic goals should be set for patients undergoing gastric bypass surgery, with an emphasis on remission of obesity and with a reduced expectation of achievement of BMI under 25 over the long run. In addition, because the higher the initial BMI, the less likely that weight loss will not be maintained, “we should also carefully examine the option of pursuing surgery at lower BMI cutoffs, at which point patients have a greater likelihood of obesity remission.”
The study was supported by the University of Michigan Health System, the National Institutes of Health, and the Nutrition Obesity Research Centers. One author declared grant support and advisory positions with pharmaceutical companies and intellectual property unrelated to the study. Another author is an investigator on a sponsored clinical study. No other conflicts of interest were declared.
Around one-quarter of obese individuals who undergo Roux-en-Y gastric bypass had sustained, long-term remission of obesity, but far fewer achieved body mass index of under 25 kg/m2 or maintained it over 5 years, new research suggests.
Researchers reported on the outcomes of a retrospective cohort study of 219 patients who underwent Roux-en-Y gastric bypass surgery at a single center between 2008 and 2010 and were followed for up to 7 years after the procedure.
Only 16.9% of female patients achieved a BMI of under 25 kg/m2 – during the study period, and only 2.7% reached this BMI by year 2 and sustained it at least to year 5 of follow-up.
Two males in the study achieved BMI of under 25 during follow-up. One was recorded as having maintained this weight at year 1 and the other at year 4, but no further measurements were available for either.
“Given the low number of patients achieving BMI of less than 25 kg/m2, we also wanted to focus on another important clinical goal of obesity remission (BMI less than 30),” wrote Corey J. Lager, MD, of the University of Michigan, Brehm Center for Diabetes, Ann Arbor, and his coauthors. “Taking into account that the mean BMI prior to surgery in our cohort was 47.1 kg/m2, this target is associated with significant estimated health benefits and likely brings a mortality benefit for patients undergoing gastric bypass.”
The authors said that a conservative estimate of the probability of achieving and sustaining BMI 25 or less after Roux-en-Y gastric bypass was just 2.3%. However, they offered a more liberal estimate – based on the number of patients who were at BMI 25 or under at the last available data point – of 6.8%.
Achieving weight loss to a BMI less than 30 was significantly influenced by age. The group who achieved this weight were on average 3 years younger at baseline than those who did not.
Similarly, initial BMI played a role in outcomes. The women who achieved a BMI below 30 had an initial mean BMI of 43.5, compared with 50.4 in the women who did not achieve this weight (P less than .0001). In males, the mean baseline BMI in those who got their weight below 30 was 44.6, compared with 48.1 in those who did not (P = .18).
Roux-en-Y gastric bypass was also associated with significant and sustained decreases in both systolic and diastolic blood pressure that was similar for both sexes. The maximum mean decrease of 14 ± 7 mm Hg was achieved at 1 year after surgery, and, at 5 years, the mean decrease was 11 ± 3 mm Hg.
The authors commented that, despite “excellent” weight loss being achieved by a majority of patients, the findings show the challenge of weight loss and maintenance in patients with a very high BMI. However, they also pointed to the encouragingly low rates of significant weight regain and the fact that fewer than 1% of patients returned to a weight greater than their preoperative weight. Higher preoperative BMI was correlated with greater weight loss but also negatively correlated with achieving BMI under 30.
The authors concluded with two takeaway messages. First, realistic goals should be set for patients undergoing gastric bypass surgery, with an emphasis on remission of obesity and with a reduced expectation of achievement of BMI under 25 over the long run. In addition, because the higher the initial BMI, the less likely that weight loss will not be maintained, “we should also carefully examine the option of pursuing surgery at lower BMI cutoffs, at which point patients have a greater likelihood of obesity remission.”
The study was supported by the University of Michigan Health System, the National Institutes of Health, and the Nutrition Obesity Research Centers. One author declared grant support and advisory positions with pharmaceutical companies and intellectual property unrelated to the study. Another author is an investigator on a sponsored clinical study. No other conflicts of interest were declared.
Around one-quarter of obese individuals who undergo Roux-en-Y gastric bypass had sustained, long-term remission of obesity, but far fewer achieved body mass index of under 25 kg/m2 or maintained it over 5 years, new research suggests.
Researchers reported on the outcomes of a retrospective cohort study of 219 patients who underwent Roux-en-Y gastric bypass surgery at a single center between 2008 and 2010 and were followed for up to 7 years after the procedure.
Only 16.9% of female patients achieved a BMI of under 25 kg/m2 – during the study period, and only 2.7% reached this BMI by year 2 and sustained it at least to year 5 of follow-up.
Two males in the study achieved BMI of under 25 during follow-up. One was recorded as having maintained this weight at year 1 and the other at year 4, but no further measurements were available for either.
“Given the low number of patients achieving BMI of less than 25 kg/m2, we also wanted to focus on another important clinical goal of obesity remission (BMI less than 30),” wrote Corey J. Lager, MD, of the University of Michigan, Brehm Center for Diabetes, Ann Arbor, and his coauthors. “Taking into account that the mean BMI prior to surgery in our cohort was 47.1 kg/m2, this target is associated with significant estimated health benefits and likely brings a mortality benefit for patients undergoing gastric bypass.”
The authors said that a conservative estimate of the probability of achieving and sustaining BMI 25 or less after Roux-en-Y gastric bypass was just 2.3%. However, they offered a more liberal estimate – based on the number of patients who were at BMI 25 or under at the last available data point – of 6.8%.
Achieving weight loss to a BMI less than 30 was significantly influenced by age. The group who achieved this weight were on average 3 years younger at baseline than those who did not.
Similarly, initial BMI played a role in outcomes. The women who achieved a BMI below 30 had an initial mean BMI of 43.5, compared with 50.4 in the women who did not achieve this weight (P less than .0001). In males, the mean baseline BMI in those who got their weight below 30 was 44.6, compared with 48.1 in those who did not (P = .18).
Roux-en-Y gastric bypass was also associated with significant and sustained decreases in both systolic and diastolic blood pressure that was similar for both sexes. The maximum mean decrease of 14 ± 7 mm Hg was achieved at 1 year after surgery, and, at 5 years, the mean decrease was 11 ± 3 mm Hg.
The authors commented that, despite “excellent” weight loss being achieved by a majority of patients, the findings show the challenge of weight loss and maintenance in patients with a very high BMI. However, they also pointed to the encouragingly low rates of significant weight regain and the fact that fewer than 1% of patients returned to a weight greater than their preoperative weight. Higher preoperative BMI was correlated with greater weight loss but also negatively correlated with achieving BMI under 30.
The authors concluded with two takeaway messages. First, realistic goals should be set for patients undergoing gastric bypass surgery, with an emphasis on remission of obesity and with a reduced expectation of achievement of BMI under 25 over the long run. In addition, because the higher the initial BMI, the less likely that weight loss will not be maintained, “we should also carefully examine the option of pursuing surgery at lower BMI cutoffs, at which point patients have a greater likelihood of obesity remission.”
The study was supported by the University of Michigan Health System, the National Institutes of Health, and the Nutrition Obesity Research Centers. One author declared grant support and advisory positions with pharmaceutical companies and intellectual property unrelated to the study. Another author is an investigator on a sponsored clinical study. No other conflicts of interest were declared.
FROM OBESITY SURGERY
Key clinical point: Roux-en-Y gastric bypass is associated with sustained, long-term remission of obesity in around one-quarter of patients.
Major finding: Nearly one-quarter of patients who underwent Roux-en-Y gastric bypass achieved a BMI below 30 kg/m2 that was sustained at their last follow-up, but healthy weight was sustained at 5 years’ follow-up in far fewer patients.
Data source: Retrospective cohort study of 219 patients.
Disclosures: The study was supported by the University of Michigan Health System, the National Institutes of Health, and the Nutrition Obesity Research Centers. One author declared grant support and advisory positions with pharmaceutical companies and intellectual property unrelated to the study. Another author is an investigator on a sponsored clinical study. No other conflicts of interest were declared.
Seeing a doctor reduces readmission risk in schizophrenia patients
SAN DIEGO – Readmission rates after discharge for patients with schizophrenia are notoriously high, with approximately a quarter of U.S. schizophrenia patients readmitted within 3 months, according to Paul A. Kurdyak, MD, PhD.
In Ontario, Canada, readmission rates for people with schizophrenia are 12.5% within 30 days of discharge. Paradoxically, however, these same patients receive less follow-up than people hospitalized for other psychiatric disorders, Dr. Kurdyak of the Institute for Clinical Evaluative Sciences in Toronto reported at the annual meeting of the American Psychiatric Association.
To explore the relationship between discharge, follow-up, and subsequent readmission in this population, he assessed the impact of physician follow-up in the month after discharge on readmission rates for schizophrenia patients, noting a lack of published evidence on whether or how it helps. “We try and use readmission as a general performance indicator, and we try and use postdischarge follow-up as a general indicator, but there was no evidence to determine whether seeing a physician following discharge has an impact on anything,” Dr. Kurdyak said.
He and his colleagues tracked primary care and outpatient psychiatric visits in the first 30 days after discharge for about 20,000 people who had been hospitalized with schizophrenia in Ontario. “We chose 30 days because we knew the rate of follow-up within 7 days was just so low,” he said.
He said more than one in three of these patients went more than 30 days without seeing any physician at all.
Schizophrenia patients “are individuals with really high needs, whose average length of stay is about 2 weeks,” he said. “It’s hard to stabilize somebody in 2 weeks, so to have so many of them drop off a cliff [after discharge] is not great.”
Another finding was that the patients who saw any doctor – whether their primary care physician or psychiatrist – saw reduced rates of readmission at 30-210 days after discharge.
Where the benefit of seeing a physician was seen in sharpest relief was among the patients deemed, by use of a validated scoring system, to be at highest risk for readmission. These patients, who made up two-thirds of the cohort, saw a 15% reduction in readmission if they’d had a visit with either a primary care physician or psychiatrist and a 19% reduction if they’d seen both types of physician relative to patients who had no physician follow-up post discharge.
“In the high-risk group, you see a very clear separation between those who saw no physician and those who saw any physician,” Dr. Kurdyak said.
Some of the limitations of the study included the fact that little was known about the quality of the follow-up physician visits or about clinical collaboration, the causes for lack of follow-up were not clear, and follow-up by nonphysician health personnel was not captured.
Nonetheless, Dr. Kurdyak said, “the moral of the story is [that] seeing a physician really differentiates from seeing no physician statistically and clinically.”
In Canada, he noted, “we like to feel comfortable with the idea of universal health care, but, when we take a closer look, we often see real inequities and disparities despite universal health care. I think this is one of these situations where, if readmission is an indicator of need, our ability to provide services to those in the greatest need falls short of the ideal.”
Dr. Kurdyak disclosed no conflicts of interest relevant to his research.
SAN DIEGO – Readmission rates after discharge for patients with schizophrenia are notoriously high, with approximately a quarter of U.S. schizophrenia patients readmitted within 3 months, according to Paul A. Kurdyak, MD, PhD.
In Ontario, Canada, readmission rates for people with schizophrenia are 12.5% within 30 days of discharge. Paradoxically, however, these same patients receive less follow-up than people hospitalized for other psychiatric disorders, Dr. Kurdyak of the Institute for Clinical Evaluative Sciences in Toronto reported at the annual meeting of the American Psychiatric Association.
To explore the relationship between discharge, follow-up, and subsequent readmission in this population, he assessed the impact of physician follow-up in the month after discharge on readmission rates for schizophrenia patients, noting a lack of published evidence on whether or how it helps. “We try and use readmission as a general performance indicator, and we try and use postdischarge follow-up as a general indicator, but there was no evidence to determine whether seeing a physician following discharge has an impact on anything,” Dr. Kurdyak said.
He and his colleagues tracked primary care and outpatient psychiatric visits in the first 30 days after discharge for about 20,000 people who had been hospitalized with schizophrenia in Ontario. “We chose 30 days because we knew the rate of follow-up within 7 days was just so low,” he said.
He said more than one in three of these patients went more than 30 days without seeing any physician at all.
Schizophrenia patients “are individuals with really high needs, whose average length of stay is about 2 weeks,” he said. “It’s hard to stabilize somebody in 2 weeks, so to have so many of them drop off a cliff [after discharge] is not great.”
Another finding was that the patients who saw any doctor – whether their primary care physician or psychiatrist – saw reduced rates of readmission at 30-210 days after discharge.
Where the benefit of seeing a physician was seen in sharpest relief was among the patients deemed, by use of a validated scoring system, to be at highest risk for readmission. These patients, who made up two-thirds of the cohort, saw a 15% reduction in readmission if they’d had a visit with either a primary care physician or psychiatrist and a 19% reduction if they’d seen both types of physician relative to patients who had no physician follow-up post discharge.
“In the high-risk group, you see a very clear separation between those who saw no physician and those who saw any physician,” Dr. Kurdyak said.
Some of the limitations of the study included the fact that little was known about the quality of the follow-up physician visits or about clinical collaboration, the causes for lack of follow-up were not clear, and follow-up by nonphysician health personnel was not captured.
Nonetheless, Dr. Kurdyak said, “the moral of the story is [that] seeing a physician really differentiates from seeing no physician statistically and clinically.”
In Canada, he noted, “we like to feel comfortable with the idea of universal health care, but, when we take a closer look, we often see real inequities and disparities despite universal health care. I think this is one of these situations where, if readmission is an indicator of need, our ability to provide services to those in the greatest need falls short of the ideal.”
Dr. Kurdyak disclosed no conflicts of interest relevant to his research.
SAN DIEGO – Readmission rates after discharge for patients with schizophrenia are notoriously high, with approximately a quarter of U.S. schizophrenia patients readmitted within 3 months, according to Paul A. Kurdyak, MD, PhD.
In Ontario, Canada, readmission rates for people with schizophrenia are 12.5% within 30 days of discharge. Paradoxically, however, these same patients receive less follow-up than people hospitalized for other psychiatric disorders, Dr. Kurdyak of the Institute for Clinical Evaluative Sciences in Toronto reported at the annual meeting of the American Psychiatric Association.
To explore the relationship between discharge, follow-up, and subsequent readmission in this population, he assessed the impact of physician follow-up in the month after discharge on readmission rates for schizophrenia patients, noting a lack of published evidence on whether or how it helps. “We try and use readmission as a general performance indicator, and we try and use postdischarge follow-up as a general indicator, but there was no evidence to determine whether seeing a physician following discharge has an impact on anything,” Dr. Kurdyak said.
He and his colleagues tracked primary care and outpatient psychiatric visits in the first 30 days after discharge for about 20,000 people who had been hospitalized with schizophrenia in Ontario. “We chose 30 days because we knew the rate of follow-up within 7 days was just so low,” he said.
He said more than one in three of these patients went more than 30 days without seeing any physician at all.
Schizophrenia patients “are individuals with really high needs, whose average length of stay is about 2 weeks,” he said. “It’s hard to stabilize somebody in 2 weeks, so to have so many of them drop off a cliff [after discharge] is not great.”
Another finding was that the patients who saw any doctor – whether their primary care physician or psychiatrist – saw reduced rates of readmission at 30-210 days after discharge.
Where the benefit of seeing a physician was seen in sharpest relief was among the patients deemed, by use of a validated scoring system, to be at highest risk for readmission. These patients, who made up two-thirds of the cohort, saw a 15% reduction in readmission if they’d had a visit with either a primary care physician or psychiatrist and a 19% reduction if they’d seen both types of physician relative to patients who had no physician follow-up post discharge.
“In the high-risk group, you see a very clear separation between those who saw no physician and those who saw any physician,” Dr. Kurdyak said.
Some of the limitations of the study included the fact that little was known about the quality of the follow-up physician visits or about clinical collaboration, the causes for lack of follow-up were not clear, and follow-up by nonphysician health personnel was not captured.
Nonetheless, Dr. Kurdyak said, “the moral of the story is [that] seeing a physician really differentiates from seeing no physician statistically and clinically.”
In Canada, he noted, “we like to feel comfortable with the idea of universal health care, but, when we take a closer look, we often see real inequities and disparities despite universal health care. I think this is one of these situations where, if readmission is an indicator of need, our ability to provide services to those in the greatest need falls short of the ideal.”
Dr. Kurdyak disclosed no conflicts of interest relevant to his research.
AT APA
Key clinical point:
Major finding: Patients at highest risk of readmission saw a 15% reduction in readmission after 30 days if they’d seen a primary care doctor or psychiatrist, compared with those who’d seen neither.
Data source: Records from about 20,000 schizophrenia patients hospitalized in Ontario in 2012, identified in government databases.
Disclosures: The study was conducted at an institute receiving most of its support from the Ontario government.





