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Eat more dairy, less red meat to prevent type 2 diabetes
STOCKHOLM – Among animal protein foods, low-fat dairy consumption may minimize the risk of developing type 2 diabetes while red meat raises that risk, a new analysis finds.
“A plant-based dietary pattern with limited intake of meat, moderate intake of fish, eggs, and full-fat dairy, and habitual consumption of yogurt, milk, or low-fat dairy, might represent the most feasible, sustainable, and successful population strategy to optimize the prevention of type 2 diabetes,” lead author Annalisa Giosuè, MD, of the University of Naples (Italy) Federico II, told this news organization.
She presented the findings from an umbrella review of 13 dose-response meta-analyses of prospective cohort studies at the annual meeting of the European Association for the Study of Diabetes.
The study is believed to be the first comprehensive overview of the available evidence from all published meta-analyses on the relationship between well-defined amounts of animal-origin foods and the risk of type 2 diabetes.
Dr. Giosuè and colleagues focused on animal-based foods because they represent a gap in most guidelines for type 2 diabetes prevention, she explained.
“The existing evidence and dietary recommendations for type 2 diabetes prevention are mainly based on the appropriate consumption of plant foods: high amounts of the fiber-rich ones and low consumption of the refined ones as well as those rich in free sugars. And also on the adequate choice among fat sources – reduction of saturated fat sources like butter and cream and replacement with plant-based poly- and monounsaturated fat sources like nontropical vegetable oils. But not on the most suitable choices among different animal foods for the prevention of type 2 diabetes,” she explained.
The new findings are in line with the Mediterranean diet in that, while plant based, it also limits red-meat consumption, but not all animal-based foods, and has consistently been associated with a reduced risk of type 2 diabetes. Vegetarian diets have also been associated with a reduced risk of type 2 diabetes, but far less evidence is available for that, she said.
Asked for comment, session moderator Matthias Schulze, MD, head of the department of molecular epidemiology at the German Institute of Human Nutrition, Berlin, said: “Decreasing intake of red and processed meat is already a strong recommendation, and these data support that. You have to make choices for and against [certain] foods. So, if you decide to eat less red meat, then the question is what do you eat instead? This study shows that specifically other animal products, like dairy and ... fish or white meat sources ... are healthy among the animal-based foods. But you could also obviously look at plant-based foods as protein sources as well.”
And Dr. Schulze noted that the data suggest another dimension to type 2 diabetes prevention beyond simply focusing on weight loss.
“You can achieve weight loss with very different diets. Diet quality plays an important role. These data support that if you look at diabetes prevention, then you would focus on people with high intakes of specific animal-based foods, besides looking at overweight and obesity. Then you could intervene to reduce this intake, with potential substitutions with other animal foods like fish or white meat, or plant-based sources of proteins.”
Red meat damages, dairy protects
The 13 meta-analyses included 175 summary risk ratios for type 2 diabetes incidence for the consumption of total meat, red meat, white meat, processed meats, fish, total dairy, full-fat dairy, low-fat dairy, milk, cheese, yogurt, or eggs.
Significant increases in the risk of developing type 2 diabetes were found for consumption of 100 g/day of total meat (SRR, 1.20; 20% increase) and red meat (SRR, 1.22, 22% increase) and with 50 g/day of processed meats (SRR, 1.30; 30% increase). A borderline increased risk was also seen for 50 g/day of white meat (SRR, 1.04; 4% increase).
The opposite was found for dairy foods. Inverse associations for type 2 diabetes development were found for an intake of 200 g/day of total dairy (SRR, 0.95; 5% reduction), low-fat dairy (SRR, 0.96; 4% reduction), milk (SRR, 0.90; 10% reduction), and for 100 g/day of yogurt (SRR, 0.94, 6% reduction).
Neutral (nonsignificant) effects were found for 200 g/day of full-fat dairy (SRR, 0.98) and for 30 g/day of cheese (SRR, 0.97). Fish consumption also had a neutral association with type 2 diabetes risk (SRR, 1.04 for 100 g/day) as did one egg per day (SRR, 1.07), but evidence quality was low.
And, Dr. Giosuè noted during her presentation, these relationships could change with alterations in the amounts consumed.
Dr. Schulze commented: “Fish is more clearly related to reduced cardiovascular risk than for preventing type 2 diabetes, where we’ve had mixed results. They might not always be the same.”
What are the mechanisms?
The reasons for these positive and negative associations aren’t entirely clear, but Dr. Giosuè noted that dairy products contain several nutrients, vitamins, and other components, such as calcium and vitamin D, that have potential beneficial effects on glucose metabolism.
In particular, she said, “Whey proteins in milk have a well-known beneficial effect on the regulation of the rise of glucose levels in the blood after meals, and also on the control of appetite and body weight.”
Moreover, probiotics found in yogurt have been linked to protective effects against weight gain and obesity, which “may in part [explain] the beneficial role of yogurt in type 2 diabetes prevention.”
Meat, in contrast, is full of cholesterol, saturated fatty acids, and heme iron, which can promote subclinical inflammation and oxidative stress, which may in turn, affect insulin sensitivity, Dr. Giosuè explained. What’s more, “processed meats also contain nitrates, nitrites, and sodium that can contribute to pancreatic cell damage and vascular dysfunction, thus affecting insulin sensitivity.”
And white meat (poultry) has a lower fat content than red meats such as beef, lamb, and pork, as well as a more favorable fatty acid profile and a lower heme-iron content, she said in an interview.
What about vegan diets? The devil is in the details
Asked about the relative health benefits of diets that completely eliminate animal-based foods, Dr. Giosuè replied: “What is important to keep in mind when hearing about the potential of vegan diets to prevent, or manage, or induce the remission of type 2 diabetes, is that the inclusion in the diet of solely foods of plant origin does not mean ‘automatically’ to eat only foods that are good for diabetes prevention.”
“Just like the exclusion of all foods of animal origin is not equivalent to reduce the risk of type 2 diabetes ... Solid evidence has demonstrated that plant foods which are refined and/or rich in free sugars like white bread, biscuits, and sweetened beverages are as harmful as red and processed meats for diabetes incidence and progression.”
Dr. Giosuè and Dr. Schulze have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
STOCKHOLM – Among animal protein foods, low-fat dairy consumption may minimize the risk of developing type 2 diabetes while red meat raises that risk, a new analysis finds.
“A plant-based dietary pattern with limited intake of meat, moderate intake of fish, eggs, and full-fat dairy, and habitual consumption of yogurt, milk, or low-fat dairy, might represent the most feasible, sustainable, and successful population strategy to optimize the prevention of type 2 diabetes,” lead author Annalisa Giosuè, MD, of the University of Naples (Italy) Federico II, told this news organization.
She presented the findings from an umbrella review of 13 dose-response meta-analyses of prospective cohort studies at the annual meeting of the European Association for the Study of Diabetes.
The study is believed to be the first comprehensive overview of the available evidence from all published meta-analyses on the relationship between well-defined amounts of animal-origin foods and the risk of type 2 diabetes.
Dr. Giosuè and colleagues focused on animal-based foods because they represent a gap in most guidelines for type 2 diabetes prevention, she explained.
“The existing evidence and dietary recommendations for type 2 diabetes prevention are mainly based on the appropriate consumption of plant foods: high amounts of the fiber-rich ones and low consumption of the refined ones as well as those rich in free sugars. And also on the adequate choice among fat sources – reduction of saturated fat sources like butter and cream and replacement with plant-based poly- and monounsaturated fat sources like nontropical vegetable oils. But not on the most suitable choices among different animal foods for the prevention of type 2 diabetes,” she explained.
The new findings are in line with the Mediterranean diet in that, while plant based, it also limits red-meat consumption, but not all animal-based foods, and has consistently been associated with a reduced risk of type 2 diabetes. Vegetarian diets have also been associated with a reduced risk of type 2 diabetes, but far less evidence is available for that, she said.
Asked for comment, session moderator Matthias Schulze, MD, head of the department of molecular epidemiology at the German Institute of Human Nutrition, Berlin, said: “Decreasing intake of red and processed meat is already a strong recommendation, and these data support that. You have to make choices for and against [certain] foods. So, if you decide to eat less red meat, then the question is what do you eat instead? This study shows that specifically other animal products, like dairy and ... fish or white meat sources ... are healthy among the animal-based foods. But you could also obviously look at plant-based foods as protein sources as well.”
And Dr. Schulze noted that the data suggest another dimension to type 2 diabetes prevention beyond simply focusing on weight loss.
“You can achieve weight loss with very different diets. Diet quality plays an important role. These data support that if you look at diabetes prevention, then you would focus on people with high intakes of specific animal-based foods, besides looking at overweight and obesity. Then you could intervene to reduce this intake, with potential substitutions with other animal foods like fish or white meat, or plant-based sources of proteins.”
Red meat damages, dairy protects
The 13 meta-analyses included 175 summary risk ratios for type 2 diabetes incidence for the consumption of total meat, red meat, white meat, processed meats, fish, total dairy, full-fat dairy, low-fat dairy, milk, cheese, yogurt, or eggs.
Significant increases in the risk of developing type 2 diabetes were found for consumption of 100 g/day of total meat (SRR, 1.20; 20% increase) and red meat (SRR, 1.22, 22% increase) and with 50 g/day of processed meats (SRR, 1.30; 30% increase). A borderline increased risk was also seen for 50 g/day of white meat (SRR, 1.04; 4% increase).
The opposite was found for dairy foods. Inverse associations for type 2 diabetes development were found for an intake of 200 g/day of total dairy (SRR, 0.95; 5% reduction), low-fat dairy (SRR, 0.96; 4% reduction), milk (SRR, 0.90; 10% reduction), and for 100 g/day of yogurt (SRR, 0.94, 6% reduction).
Neutral (nonsignificant) effects were found for 200 g/day of full-fat dairy (SRR, 0.98) and for 30 g/day of cheese (SRR, 0.97). Fish consumption also had a neutral association with type 2 diabetes risk (SRR, 1.04 for 100 g/day) as did one egg per day (SRR, 1.07), but evidence quality was low.
And, Dr. Giosuè noted during her presentation, these relationships could change with alterations in the amounts consumed.
Dr. Schulze commented: “Fish is more clearly related to reduced cardiovascular risk than for preventing type 2 diabetes, where we’ve had mixed results. They might not always be the same.”
What are the mechanisms?
The reasons for these positive and negative associations aren’t entirely clear, but Dr. Giosuè noted that dairy products contain several nutrients, vitamins, and other components, such as calcium and vitamin D, that have potential beneficial effects on glucose metabolism.
In particular, she said, “Whey proteins in milk have a well-known beneficial effect on the regulation of the rise of glucose levels in the blood after meals, and also on the control of appetite and body weight.”
Moreover, probiotics found in yogurt have been linked to protective effects against weight gain and obesity, which “may in part [explain] the beneficial role of yogurt in type 2 diabetes prevention.”
Meat, in contrast, is full of cholesterol, saturated fatty acids, and heme iron, which can promote subclinical inflammation and oxidative stress, which may in turn, affect insulin sensitivity, Dr. Giosuè explained. What’s more, “processed meats also contain nitrates, nitrites, and sodium that can contribute to pancreatic cell damage and vascular dysfunction, thus affecting insulin sensitivity.”
And white meat (poultry) has a lower fat content than red meats such as beef, lamb, and pork, as well as a more favorable fatty acid profile and a lower heme-iron content, she said in an interview.
What about vegan diets? The devil is in the details
Asked about the relative health benefits of diets that completely eliminate animal-based foods, Dr. Giosuè replied: “What is important to keep in mind when hearing about the potential of vegan diets to prevent, or manage, or induce the remission of type 2 diabetes, is that the inclusion in the diet of solely foods of plant origin does not mean ‘automatically’ to eat only foods that are good for diabetes prevention.”
“Just like the exclusion of all foods of animal origin is not equivalent to reduce the risk of type 2 diabetes ... Solid evidence has demonstrated that plant foods which are refined and/or rich in free sugars like white bread, biscuits, and sweetened beverages are as harmful as red and processed meats for diabetes incidence and progression.”
Dr. Giosuè and Dr. Schulze have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
STOCKHOLM – Among animal protein foods, low-fat dairy consumption may minimize the risk of developing type 2 diabetes while red meat raises that risk, a new analysis finds.
“A plant-based dietary pattern with limited intake of meat, moderate intake of fish, eggs, and full-fat dairy, and habitual consumption of yogurt, milk, or low-fat dairy, might represent the most feasible, sustainable, and successful population strategy to optimize the prevention of type 2 diabetes,” lead author Annalisa Giosuè, MD, of the University of Naples (Italy) Federico II, told this news organization.
She presented the findings from an umbrella review of 13 dose-response meta-analyses of prospective cohort studies at the annual meeting of the European Association for the Study of Diabetes.
The study is believed to be the first comprehensive overview of the available evidence from all published meta-analyses on the relationship between well-defined amounts of animal-origin foods and the risk of type 2 diabetes.
Dr. Giosuè and colleagues focused on animal-based foods because they represent a gap in most guidelines for type 2 diabetes prevention, she explained.
“The existing evidence and dietary recommendations for type 2 diabetes prevention are mainly based on the appropriate consumption of plant foods: high amounts of the fiber-rich ones and low consumption of the refined ones as well as those rich in free sugars. And also on the adequate choice among fat sources – reduction of saturated fat sources like butter and cream and replacement with plant-based poly- and monounsaturated fat sources like nontropical vegetable oils. But not on the most suitable choices among different animal foods for the prevention of type 2 diabetes,” she explained.
The new findings are in line with the Mediterranean diet in that, while plant based, it also limits red-meat consumption, but not all animal-based foods, and has consistently been associated with a reduced risk of type 2 diabetes. Vegetarian diets have also been associated with a reduced risk of type 2 diabetes, but far less evidence is available for that, she said.
Asked for comment, session moderator Matthias Schulze, MD, head of the department of molecular epidemiology at the German Institute of Human Nutrition, Berlin, said: “Decreasing intake of red and processed meat is already a strong recommendation, and these data support that. You have to make choices for and against [certain] foods. So, if you decide to eat less red meat, then the question is what do you eat instead? This study shows that specifically other animal products, like dairy and ... fish or white meat sources ... are healthy among the animal-based foods. But you could also obviously look at plant-based foods as protein sources as well.”
And Dr. Schulze noted that the data suggest another dimension to type 2 diabetes prevention beyond simply focusing on weight loss.
“You can achieve weight loss with very different diets. Diet quality plays an important role. These data support that if you look at diabetes prevention, then you would focus on people with high intakes of specific animal-based foods, besides looking at overweight and obesity. Then you could intervene to reduce this intake, with potential substitutions with other animal foods like fish or white meat, or plant-based sources of proteins.”
Red meat damages, dairy protects
The 13 meta-analyses included 175 summary risk ratios for type 2 diabetes incidence for the consumption of total meat, red meat, white meat, processed meats, fish, total dairy, full-fat dairy, low-fat dairy, milk, cheese, yogurt, or eggs.
Significant increases in the risk of developing type 2 diabetes were found for consumption of 100 g/day of total meat (SRR, 1.20; 20% increase) and red meat (SRR, 1.22, 22% increase) and with 50 g/day of processed meats (SRR, 1.30; 30% increase). A borderline increased risk was also seen for 50 g/day of white meat (SRR, 1.04; 4% increase).
The opposite was found for dairy foods. Inverse associations for type 2 diabetes development were found for an intake of 200 g/day of total dairy (SRR, 0.95; 5% reduction), low-fat dairy (SRR, 0.96; 4% reduction), milk (SRR, 0.90; 10% reduction), and for 100 g/day of yogurt (SRR, 0.94, 6% reduction).
Neutral (nonsignificant) effects were found for 200 g/day of full-fat dairy (SRR, 0.98) and for 30 g/day of cheese (SRR, 0.97). Fish consumption also had a neutral association with type 2 diabetes risk (SRR, 1.04 for 100 g/day) as did one egg per day (SRR, 1.07), but evidence quality was low.
And, Dr. Giosuè noted during her presentation, these relationships could change with alterations in the amounts consumed.
Dr. Schulze commented: “Fish is more clearly related to reduced cardiovascular risk than for preventing type 2 diabetes, where we’ve had mixed results. They might not always be the same.”
What are the mechanisms?
The reasons for these positive and negative associations aren’t entirely clear, but Dr. Giosuè noted that dairy products contain several nutrients, vitamins, and other components, such as calcium and vitamin D, that have potential beneficial effects on glucose metabolism.
In particular, she said, “Whey proteins in milk have a well-known beneficial effect on the regulation of the rise of glucose levels in the blood after meals, and also on the control of appetite and body weight.”
Moreover, probiotics found in yogurt have been linked to protective effects against weight gain and obesity, which “may in part [explain] the beneficial role of yogurt in type 2 diabetes prevention.”
Meat, in contrast, is full of cholesterol, saturated fatty acids, and heme iron, which can promote subclinical inflammation and oxidative stress, which may in turn, affect insulin sensitivity, Dr. Giosuè explained. What’s more, “processed meats also contain nitrates, nitrites, and sodium that can contribute to pancreatic cell damage and vascular dysfunction, thus affecting insulin sensitivity.”
And white meat (poultry) has a lower fat content than red meats such as beef, lamb, and pork, as well as a more favorable fatty acid profile and a lower heme-iron content, she said in an interview.
What about vegan diets? The devil is in the details
Asked about the relative health benefits of diets that completely eliminate animal-based foods, Dr. Giosuè replied: “What is important to keep in mind when hearing about the potential of vegan diets to prevent, or manage, or induce the remission of type 2 diabetes, is that the inclusion in the diet of solely foods of plant origin does not mean ‘automatically’ to eat only foods that are good for diabetes prevention.”
“Just like the exclusion of all foods of animal origin is not equivalent to reduce the risk of type 2 diabetes ... Solid evidence has demonstrated that plant foods which are refined and/or rich in free sugars like white bread, biscuits, and sweetened beverages are as harmful as red and processed meats for diabetes incidence and progression.”
Dr. Giosuè and Dr. Schulze have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
AT EASD 2022
Whole grains may improve survival in people with type 2 diabetes
STOCKHOLM – Higher consumption of whole grains, fish, fiber, and omega-3 polyunsaturated fatty acids reduces deaths from all causes in people with type 2 diabetes, show new data.
Results from the systematic review and meta-analysis were presented at the annual meeting of the European Association for the Study of Diabetes by lead author Janett Barbaresko, PhD, a researcher from the German Diabetes Center in Düsseldorf.
Adding just one serving (around 20 g/day) of whole grains from foods such as brown bread, brown rice, or breakfast cereals was associated with about a 16% reduction in all-cause mortality, and each portion of fish consumed per week was associated with a 5% lower risk of all-cause mortality. In addition, eating 5 g/day of fiber was associated with a 14% reduction in all-cause mortality, and 0.1 g/day of omega-3 polyunsaturated fatty acids with a 13% reduction.
Diet also has role in improving survival in those with type 2 diabetes
Dr. Barbaresko explained that most dietary recommendations for people with type 2 diabetes are not evidence based or are derived from studies of the general population, and that the degree to which different components of diet are associated with all-cause mortality, or indeed the prevention of morbidity and mortality, remains unknown.
By way of example, she noted the American Diabetes Association 2022 guidelines for the prevention and management of diabetes complications advises limited intake of saturated and trans fatty acids, higher intake of polyunsaturated fatty acids, and following the Mediterranean or DASH (Dietary Approaches to Stop Hypertension) diets.
“Our findings show that dietary factors not only play a role in the prevention of type 2 diabetes, but also seem to be relevant for improving survival in people with diagnosed diabetes,” she said, adding that, “in particular, we found some key aspects of a healthy diet such as higher intakes of whole grains, fiber, fish, and omega-3 polyunsaturated fatty acids may improve survival of individuals with type 2 diabetes.”
She noted that individuals with type 2 diabetes are known to be more prone to circulatory diseases, dementia, cancer, and bone fractures, and that lifestyle modifications, including diet – with or without medications – underpin most management strategies.
“For the first time, we have provided a summary of all published studies on any dietary factor in association to all-cause mortality in individuals with type 2 diabetes,” said Dr. Barbaresko. “Moreover, the certainty of evidence has been evaluated for the first time.”
Matthias Schulze, MD, head of the German Institute of Human Nutrition, Berlin, moderated the session.
The new work “summarizes the available evidence, providing important dietary advice for patients with diabetes, for example, recommending whole grains,” he remarked. “However, the study also points to gaps in knowledge, so for many diet factors, we have either no or few studies, or study quality considered to be low, which calls for more research to fill the gap.”
High versus low intake of various dietary factors
The researchers performed meta-analyses based on published studies of all-cause mortality in individuals with type 2 diabetes aged 18 years and over, as associated with dietary patterns, macronutrients (carbohydrates, protein, fat), micronutrients (vitamins and minerals), secondary plant compounds (for example, polyphenols), and supplements.
Studies were conducted mainly in the United States and Europe with a mean follow-up of 10 years. Low and high intake were compared, and a dose-response relationship between different dietary factors and all-cause mortality was explored to generate summary risk ratios. The researchers also explored how the certainty of evidence was determined.
Decreased mortality from any cause was found for a higher intake of fish (SRR per serving/week, 0.95; over six studies); whole grain (SRR per 20 g/day, 0.84; two studies); fiber (SRR per 5 g/day, 0.86; three studies), and omega-3 polyunsaturated fatty acids (SRR per 0.1 g/day, 0.87; two studies).
A low certainty of evidence was found for an inverse association between all-cause mortality and vegetable consumption (SRR per 100 g/day, 0.88; two studies) and plant protein intake (SRR per 10 g/day, 0.91; three studies).
Eggs were associated with an increased risk of all-cause mortality (SRR per 10 g/day, 1.05; seven studies), as was dietary cholesterol (SRR per 300 mg/day, 1.19; two studies).
Regarding other dietary patterns, including the Mediterranean diet and low-carbohydrate diet, either no association was found and/or the evidence was very uncertain. Likewise, evidence was uncertain for foods including nuts, dairy, meat, sugar and sweets; macronutrients, including carbohydrates; and micronutrients, such as caffeine and vitamin D.
“With the Mediterranean diet, we saw an inverse association [with all-cause mortality] comparing high adherence with low adherence to the Mediterranean diet, but the certainty of evidence was very low, indicating a really uncertain meta-evidence,” remarked Dr. Barbaresko.
She concluded that a greater number of studies is needed to investigate the association of dietary factors with all-cause mortality in type 2 diabetes to strengthen the evidence for several other dietary factors. She also cautioned that meta-analyses are affected by unmeasured and residual confounding.
Dr. Barbaresko and Dr. Schulze reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
STOCKHOLM – Higher consumption of whole grains, fish, fiber, and omega-3 polyunsaturated fatty acids reduces deaths from all causes in people with type 2 diabetes, show new data.
Results from the systematic review and meta-analysis were presented at the annual meeting of the European Association for the Study of Diabetes by lead author Janett Barbaresko, PhD, a researcher from the German Diabetes Center in Düsseldorf.
Adding just one serving (around 20 g/day) of whole grains from foods such as brown bread, brown rice, or breakfast cereals was associated with about a 16% reduction in all-cause mortality, and each portion of fish consumed per week was associated with a 5% lower risk of all-cause mortality. In addition, eating 5 g/day of fiber was associated with a 14% reduction in all-cause mortality, and 0.1 g/day of omega-3 polyunsaturated fatty acids with a 13% reduction.
Diet also has role in improving survival in those with type 2 diabetes
Dr. Barbaresko explained that most dietary recommendations for people with type 2 diabetes are not evidence based or are derived from studies of the general population, and that the degree to which different components of diet are associated with all-cause mortality, or indeed the prevention of morbidity and mortality, remains unknown.
By way of example, she noted the American Diabetes Association 2022 guidelines for the prevention and management of diabetes complications advises limited intake of saturated and trans fatty acids, higher intake of polyunsaturated fatty acids, and following the Mediterranean or DASH (Dietary Approaches to Stop Hypertension) diets.
“Our findings show that dietary factors not only play a role in the prevention of type 2 diabetes, but also seem to be relevant for improving survival in people with diagnosed diabetes,” she said, adding that, “in particular, we found some key aspects of a healthy diet such as higher intakes of whole grains, fiber, fish, and omega-3 polyunsaturated fatty acids may improve survival of individuals with type 2 diabetes.”
She noted that individuals with type 2 diabetes are known to be more prone to circulatory diseases, dementia, cancer, and bone fractures, and that lifestyle modifications, including diet – with or without medications – underpin most management strategies.
“For the first time, we have provided a summary of all published studies on any dietary factor in association to all-cause mortality in individuals with type 2 diabetes,” said Dr. Barbaresko. “Moreover, the certainty of evidence has been evaluated for the first time.”
Matthias Schulze, MD, head of the German Institute of Human Nutrition, Berlin, moderated the session.
The new work “summarizes the available evidence, providing important dietary advice for patients with diabetes, for example, recommending whole grains,” he remarked. “However, the study also points to gaps in knowledge, so for many diet factors, we have either no or few studies, or study quality considered to be low, which calls for more research to fill the gap.”
High versus low intake of various dietary factors
The researchers performed meta-analyses based on published studies of all-cause mortality in individuals with type 2 diabetes aged 18 years and over, as associated with dietary patterns, macronutrients (carbohydrates, protein, fat), micronutrients (vitamins and minerals), secondary plant compounds (for example, polyphenols), and supplements.
Studies were conducted mainly in the United States and Europe with a mean follow-up of 10 years. Low and high intake were compared, and a dose-response relationship between different dietary factors and all-cause mortality was explored to generate summary risk ratios. The researchers also explored how the certainty of evidence was determined.
Decreased mortality from any cause was found for a higher intake of fish (SRR per serving/week, 0.95; over six studies); whole grain (SRR per 20 g/day, 0.84; two studies); fiber (SRR per 5 g/day, 0.86; three studies), and omega-3 polyunsaturated fatty acids (SRR per 0.1 g/day, 0.87; two studies).
A low certainty of evidence was found for an inverse association between all-cause mortality and vegetable consumption (SRR per 100 g/day, 0.88; two studies) and plant protein intake (SRR per 10 g/day, 0.91; three studies).
Eggs were associated with an increased risk of all-cause mortality (SRR per 10 g/day, 1.05; seven studies), as was dietary cholesterol (SRR per 300 mg/day, 1.19; two studies).
Regarding other dietary patterns, including the Mediterranean diet and low-carbohydrate diet, either no association was found and/or the evidence was very uncertain. Likewise, evidence was uncertain for foods including nuts, dairy, meat, sugar and sweets; macronutrients, including carbohydrates; and micronutrients, such as caffeine and vitamin D.
“With the Mediterranean diet, we saw an inverse association [with all-cause mortality] comparing high adherence with low adherence to the Mediterranean diet, but the certainty of evidence was very low, indicating a really uncertain meta-evidence,” remarked Dr. Barbaresko.
She concluded that a greater number of studies is needed to investigate the association of dietary factors with all-cause mortality in type 2 diabetes to strengthen the evidence for several other dietary factors. She also cautioned that meta-analyses are affected by unmeasured and residual confounding.
Dr. Barbaresko and Dr. Schulze reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
STOCKHOLM – Higher consumption of whole grains, fish, fiber, and omega-3 polyunsaturated fatty acids reduces deaths from all causes in people with type 2 diabetes, show new data.
Results from the systematic review and meta-analysis were presented at the annual meeting of the European Association for the Study of Diabetes by lead author Janett Barbaresko, PhD, a researcher from the German Diabetes Center in Düsseldorf.
Adding just one serving (around 20 g/day) of whole grains from foods such as brown bread, brown rice, or breakfast cereals was associated with about a 16% reduction in all-cause mortality, and each portion of fish consumed per week was associated with a 5% lower risk of all-cause mortality. In addition, eating 5 g/day of fiber was associated with a 14% reduction in all-cause mortality, and 0.1 g/day of omega-3 polyunsaturated fatty acids with a 13% reduction.
Diet also has role in improving survival in those with type 2 diabetes
Dr. Barbaresko explained that most dietary recommendations for people with type 2 diabetes are not evidence based or are derived from studies of the general population, and that the degree to which different components of diet are associated with all-cause mortality, or indeed the prevention of morbidity and mortality, remains unknown.
By way of example, she noted the American Diabetes Association 2022 guidelines for the prevention and management of diabetes complications advises limited intake of saturated and trans fatty acids, higher intake of polyunsaturated fatty acids, and following the Mediterranean or DASH (Dietary Approaches to Stop Hypertension) diets.
“Our findings show that dietary factors not only play a role in the prevention of type 2 diabetes, but also seem to be relevant for improving survival in people with diagnosed diabetes,” she said, adding that, “in particular, we found some key aspects of a healthy diet such as higher intakes of whole grains, fiber, fish, and omega-3 polyunsaturated fatty acids may improve survival of individuals with type 2 diabetes.”
She noted that individuals with type 2 diabetes are known to be more prone to circulatory diseases, dementia, cancer, and bone fractures, and that lifestyle modifications, including diet – with or without medications – underpin most management strategies.
“For the first time, we have provided a summary of all published studies on any dietary factor in association to all-cause mortality in individuals with type 2 diabetes,” said Dr. Barbaresko. “Moreover, the certainty of evidence has been evaluated for the first time.”
Matthias Schulze, MD, head of the German Institute of Human Nutrition, Berlin, moderated the session.
The new work “summarizes the available evidence, providing important dietary advice for patients with diabetes, for example, recommending whole grains,” he remarked. “However, the study also points to gaps in knowledge, so for many diet factors, we have either no or few studies, or study quality considered to be low, which calls for more research to fill the gap.”
High versus low intake of various dietary factors
The researchers performed meta-analyses based on published studies of all-cause mortality in individuals with type 2 diabetes aged 18 years and over, as associated with dietary patterns, macronutrients (carbohydrates, protein, fat), micronutrients (vitamins and minerals), secondary plant compounds (for example, polyphenols), and supplements.
Studies were conducted mainly in the United States and Europe with a mean follow-up of 10 years. Low and high intake were compared, and a dose-response relationship between different dietary factors and all-cause mortality was explored to generate summary risk ratios. The researchers also explored how the certainty of evidence was determined.
Decreased mortality from any cause was found for a higher intake of fish (SRR per serving/week, 0.95; over six studies); whole grain (SRR per 20 g/day, 0.84; two studies); fiber (SRR per 5 g/day, 0.86; three studies), and omega-3 polyunsaturated fatty acids (SRR per 0.1 g/day, 0.87; two studies).
A low certainty of evidence was found for an inverse association between all-cause mortality and vegetable consumption (SRR per 100 g/day, 0.88; two studies) and plant protein intake (SRR per 10 g/day, 0.91; three studies).
Eggs were associated with an increased risk of all-cause mortality (SRR per 10 g/day, 1.05; seven studies), as was dietary cholesterol (SRR per 300 mg/day, 1.19; two studies).
Regarding other dietary patterns, including the Mediterranean diet and low-carbohydrate diet, either no association was found and/or the evidence was very uncertain. Likewise, evidence was uncertain for foods including nuts, dairy, meat, sugar and sweets; macronutrients, including carbohydrates; and micronutrients, such as caffeine and vitamin D.
“With the Mediterranean diet, we saw an inverse association [with all-cause mortality] comparing high adherence with low adherence to the Mediterranean diet, but the certainty of evidence was very low, indicating a really uncertain meta-evidence,” remarked Dr. Barbaresko.
She concluded that a greater number of studies is needed to investigate the association of dietary factors with all-cause mortality in type 2 diabetes to strengthen the evidence for several other dietary factors. She also cautioned that meta-analyses are affected by unmeasured and residual confounding.
Dr. Barbaresko and Dr. Schulze reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
AT EASD 2022
Waist-hip ratio beats BMI for predicting obesity’s mortality risk
STOCKHOLM – New evidence continues to show that alternative measures of adiposity than body mass index, such as waist-to-hip ratio, work better for predicting the risk a person with overweight or obesity faces from their excess weight.
A direct comparison of waist-to-hip ratio (WHR), body mass index (BMI), and fat mass index (FMI) in a total of more than 380,000 United Kingdom residents included in the UK Biobank showed that WHR had the strongest and most consistent relationship to all-cause death, compared with the other two measures, indicating that clinicians should pay more attention to adiposity distribution than they do to BMI when prioritizing obesity interventions, Irfan Khan said at the annual meeting of the European Association for the Study of Diabetes.
Although it’s likely “way too early” to fully replace BMI as a measure of adiposity, because it is so established in guidelines and in practice, it is now time to “use WHR as an adjunct to BMI” suggested Mr. Khan in an interview.
“A lot of work still needs to be done to translate WHR into practice, but I think it’s getting closer,” said Mr. Khan, a medical student at McMaster University, Hamilton, Ont., who performed his analyses in collaboration with a research team based primarily at McMaster.
Moving away from BMI-centric obesity
“This is a timely topic, because guidelines for treating people with obesity have depended so much on BMI. We want to go from a BMI-centric view to a view of obesity that depends more on disease burden,” commented Matthias Blüher, MD, professor of molecular endocrinology and head of the Obesity Outpatient Clinic for Adults at the University of Leipzig (Germany).
For example, the 2016 obesity management guidelines from the American Association of Clinical Endocrinologists and the American College of Endocrinology called for a “complications-centric” approach to assessing and intervening in people with obesity rather than a “BMI-centric” approach.
But Dr. Blüher went a step further in an interview, adding that “waist-to-hip ratio is now outdated,” with adjusted measures of WHR such as waist-to-height ratio “considered a better proxy for all-cause death.” He also gave high marks to the Edmonton Obesity Staging System, which independently added to BMI as well as to a diagnosis of metabolic syndrome for predicting mortality in a sample from the U.S. National Health and Nutrition Examination Survey (NHANES). The Edmonton System also surpassed BMI for disease-severity staging using data from more than 23,000 Canadians with a BMI that denoted obesity.
1 standard deviation increase in WHR linked with a 41% increased mortality
The study reported by Mr. Khan used both epidemiologic and Mendelian randomization analyses on data collected from more than 380,000 U.K. residents included in the UK Biobank database to examine the statistical associations between BMI, FMI, and WHR and all-cause death. This showed that while BMI and FMI both had significant, independent associations with all-cause mortality, with hazard ratios of 1.14 for each 1 standard deviation increase in BMI and of 1.17 for each standard deviation increase in FMI, the link was a stronger 1.41 per standard deviation increase in WHR, he said.
Another analysis that divided the entire UK Biobank study cohort into 20 roughly similar subgroups by their BMI showed that WHR had the most consistent association across the BMI spectrum.
Further analyses showed that WHR also strongly and significantly linked with cardiovascular disease death and with other causes of death that were not cardiovascular, cancer-related, or associated with respiratory diseases. And the WHR link to all-cause mortality was strongest in men, and much less robust in women, likely because visceral adiposity is much more common among men, even compared with the postmenopausal women who predominate in the UK Biobank cohort.
One more feature of WHR that makes it an attractive metric is its relative ease of measurement, about as easy as BMI, Mr. Khan said.
The study received no commercial funding, and Mr. Khan had no disclosures. Dr. Blüher has been a consultant to or speaker on behalf of Amgen, AstraZeneca, Bayer, Boehringer Ingelheim, Lilly, Novartis, Novo Nordisk, and Sanofi.
STOCKHOLM – New evidence continues to show that alternative measures of adiposity than body mass index, such as waist-to-hip ratio, work better for predicting the risk a person with overweight or obesity faces from their excess weight.
A direct comparison of waist-to-hip ratio (WHR), body mass index (BMI), and fat mass index (FMI) in a total of more than 380,000 United Kingdom residents included in the UK Biobank showed that WHR had the strongest and most consistent relationship to all-cause death, compared with the other two measures, indicating that clinicians should pay more attention to adiposity distribution than they do to BMI when prioritizing obesity interventions, Irfan Khan said at the annual meeting of the European Association for the Study of Diabetes.
Although it’s likely “way too early” to fully replace BMI as a measure of adiposity, because it is so established in guidelines and in practice, it is now time to “use WHR as an adjunct to BMI” suggested Mr. Khan in an interview.
“A lot of work still needs to be done to translate WHR into practice, but I think it’s getting closer,” said Mr. Khan, a medical student at McMaster University, Hamilton, Ont., who performed his analyses in collaboration with a research team based primarily at McMaster.
Moving away from BMI-centric obesity
“This is a timely topic, because guidelines for treating people with obesity have depended so much on BMI. We want to go from a BMI-centric view to a view of obesity that depends more on disease burden,” commented Matthias Blüher, MD, professor of molecular endocrinology and head of the Obesity Outpatient Clinic for Adults at the University of Leipzig (Germany).
For example, the 2016 obesity management guidelines from the American Association of Clinical Endocrinologists and the American College of Endocrinology called for a “complications-centric” approach to assessing and intervening in people with obesity rather than a “BMI-centric” approach.
But Dr. Blüher went a step further in an interview, adding that “waist-to-hip ratio is now outdated,” with adjusted measures of WHR such as waist-to-height ratio “considered a better proxy for all-cause death.” He also gave high marks to the Edmonton Obesity Staging System, which independently added to BMI as well as to a diagnosis of metabolic syndrome for predicting mortality in a sample from the U.S. National Health and Nutrition Examination Survey (NHANES). The Edmonton System also surpassed BMI for disease-severity staging using data from more than 23,000 Canadians with a BMI that denoted obesity.
1 standard deviation increase in WHR linked with a 41% increased mortality
The study reported by Mr. Khan used both epidemiologic and Mendelian randomization analyses on data collected from more than 380,000 U.K. residents included in the UK Biobank database to examine the statistical associations between BMI, FMI, and WHR and all-cause death. This showed that while BMI and FMI both had significant, independent associations with all-cause mortality, with hazard ratios of 1.14 for each 1 standard deviation increase in BMI and of 1.17 for each standard deviation increase in FMI, the link was a stronger 1.41 per standard deviation increase in WHR, he said.
Another analysis that divided the entire UK Biobank study cohort into 20 roughly similar subgroups by their BMI showed that WHR had the most consistent association across the BMI spectrum.
Further analyses showed that WHR also strongly and significantly linked with cardiovascular disease death and with other causes of death that were not cardiovascular, cancer-related, or associated with respiratory diseases. And the WHR link to all-cause mortality was strongest in men, and much less robust in women, likely because visceral adiposity is much more common among men, even compared with the postmenopausal women who predominate in the UK Biobank cohort.
One more feature of WHR that makes it an attractive metric is its relative ease of measurement, about as easy as BMI, Mr. Khan said.
The study received no commercial funding, and Mr. Khan had no disclosures. Dr. Blüher has been a consultant to or speaker on behalf of Amgen, AstraZeneca, Bayer, Boehringer Ingelheim, Lilly, Novartis, Novo Nordisk, and Sanofi.
STOCKHOLM – New evidence continues to show that alternative measures of adiposity than body mass index, such as waist-to-hip ratio, work better for predicting the risk a person with overweight or obesity faces from their excess weight.
A direct comparison of waist-to-hip ratio (WHR), body mass index (BMI), and fat mass index (FMI) in a total of more than 380,000 United Kingdom residents included in the UK Biobank showed that WHR had the strongest and most consistent relationship to all-cause death, compared with the other two measures, indicating that clinicians should pay more attention to adiposity distribution than they do to BMI when prioritizing obesity interventions, Irfan Khan said at the annual meeting of the European Association for the Study of Diabetes.
Although it’s likely “way too early” to fully replace BMI as a measure of adiposity, because it is so established in guidelines and in practice, it is now time to “use WHR as an adjunct to BMI” suggested Mr. Khan in an interview.
“A lot of work still needs to be done to translate WHR into practice, but I think it’s getting closer,” said Mr. Khan, a medical student at McMaster University, Hamilton, Ont., who performed his analyses in collaboration with a research team based primarily at McMaster.
Moving away from BMI-centric obesity
“This is a timely topic, because guidelines for treating people with obesity have depended so much on BMI. We want to go from a BMI-centric view to a view of obesity that depends more on disease burden,” commented Matthias Blüher, MD, professor of molecular endocrinology and head of the Obesity Outpatient Clinic for Adults at the University of Leipzig (Germany).
For example, the 2016 obesity management guidelines from the American Association of Clinical Endocrinologists and the American College of Endocrinology called for a “complications-centric” approach to assessing and intervening in people with obesity rather than a “BMI-centric” approach.
But Dr. Blüher went a step further in an interview, adding that “waist-to-hip ratio is now outdated,” with adjusted measures of WHR such as waist-to-height ratio “considered a better proxy for all-cause death.” He also gave high marks to the Edmonton Obesity Staging System, which independently added to BMI as well as to a diagnosis of metabolic syndrome for predicting mortality in a sample from the U.S. National Health and Nutrition Examination Survey (NHANES). The Edmonton System also surpassed BMI for disease-severity staging using data from more than 23,000 Canadians with a BMI that denoted obesity.
1 standard deviation increase in WHR linked with a 41% increased mortality
The study reported by Mr. Khan used both epidemiologic and Mendelian randomization analyses on data collected from more than 380,000 U.K. residents included in the UK Biobank database to examine the statistical associations between BMI, FMI, and WHR and all-cause death. This showed that while BMI and FMI both had significant, independent associations with all-cause mortality, with hazard ratios of 1.14 for each 1 standard deviation increase in BMI and of 1.17 for each standard deviation increase in FMI, the link was a stronger 1.41 per standard deviation increase in WHR, he said.
Another analysis that divided the entire UK Biobank study cohort into 20 roughly similar subgroups by their BMI showed that WHR had the most consistent association across the BMI spectrum.
Further analyses showed that WHR also strongly and significantly linked with cardiovascular disease death and with other causes of death that were not cardiovascular, cancer-related, or associated with respiratory diseases. And the WHR link to all-cause mortality was strongest in men, and much less robust in women, likely because visceral adiposity is much more common among men, even compared with the postmenopausal women who predominate in the UK Biobank cohort.
One more feature of WHR that makes it an attractive metric is its relative ease of measurement, about as easy as BMI, Mr. Khan said.
The study received no commercial funding, and Mr. Khan had no disclosures. Dr. Blüher has been a consultant to or speaker on behalf of Amgen, AstraZeneca, Bayer, Boehringer Ingelheim, Lilly, Novartis, Novo Nordisk, and Sanofi.
AT EASD 2022
‘Game changer’ semaglutide halves diabetes risk from obesity
Treatment of people with obesity but without diabetes with the glucagon-like peptide-1 (GLP-1) agonist semaglutide (Wegovy) – hailed at its approval in 2021 as a “game changer” for the treatment of obesity – led to beneficial changes in body mass index (BMI), glycemic control, and other clinical measures.
This collectively cut the calculated risk for possible future development of type 2 diabetes in study participants by more than half, based on post-hoc analysis of data from two pivotal trials that compared semaglutide with placebo.
The findings “suggest that semaglutide could help prevent type 2 diabetes in people with overweight or obesity,” said W. Timothy Garvey, MD, in a presentation at the annual meeting of the European Association for the Study of Diabetes.
Asked to comment, Rodolfo J. Galindo, MD, said: “We devote a significant amount of effort to treating people with diabetes but very little effort for diabetes prevention. We hope that further scientific findings showing the benefits of weight loss, as illustrated by [Dr.] Garvey [and colleagues], for diabetes prevention will change the pandemic of adiposity-based chronic disease.”
GLP-1 agonists as complication-reducing agents
Finding a link between treatment with semaglutide and a reduced future risk of developing type 2 diabetes is important because it shows that this regimen is not just a BMI-centric approach to treating people with obesity but is also a way to potentially reduce complications of obesity such as diabetes onset, explained Dr. Garvey, a professor and director of the Diabetes Research Center at the University of Alabama at Birmingham.
Recent obesity-management recommendations have focused on interventions aimed at avoiding complications, as in 2016 guidelines from the American Association of Clinical Endocrinologists and the American College of Endocrinology, he noted.
Having evidence that treatment with a GLP-1 agonist such as semaglutide can reduce the incidence of diabetes in people with obesity might also help convince payers to more uniformly reimburse for this type of obesity intervention, which up to now has commonly faced coverage limitations, especially in the United States, he said in an interview.
Dr. Garvey added that evidence for a reduction in the incidence of cardiovascular disease complications such as myocardial infarction and stroke may need to join diabetes prevention as proven effects from obesity intervention before coverage decisions change.
He cited the SELECT trial, which is testing the hypothesis that semaglutide treatment of people with overweight or obesity can reduce the incidence of cardiovascular events in about 17,500 participants and with expected completion toward the end of 2023.
“A complication-centric approach to management of people with obesity needs prediction tools that allow a focus on prevention strategies for people with obesity who are at increased risk of developing diabetes,” commented Dr. Galindo, an endocrinologist at Emory University, Atlanta, in an interview.
Combined analysis of STEP 1 and STEP 4 data
The analysis conducted by Dr. Garvey and colleagues used data from the STEP 1 trial, which compared semaglutide 2.4 mg subcutaneous once weekly with placebo for weight loss in more than 1,500 people predominantly with obesity (about 6% were overweight) and showed that after 68 weeks semaglutide cut the calculated risk of developing type 2 diabetes over the subsequent 10 years from 18% at baseline to 7%, compared with a drop from 18% at baseline to 16% among those who received placebo.
A second, similar analysis of data from people predominantly with obesity in the STEP 4 trial – which treated around 800 people with semaglutide 2.4 mg for 20 weeks and then randomized them to placebo or continued semaglutide treatment – showed that semaglutide treatment cut their calculated 10-year risk for incident type 2 diabetes from 20% at baseline to about 11% after 20 weeks. The risk rebounded in the study participants who then switched from semaglutide to placebo. Among those randomized to remain on semaglutide for a total of 68 weeks, the 10-year risk fell further to 8%.
Dr. Garvey and associates used a validated prognostic formula, the cardiometabolic disease staging (CMDS) tool, they had previously developed and reported to calculate 10-year risk for development of type 2 diabetes based on three unmodifiable factors (age, sex, and race) and five modifiable factors (BMI, blood pressure, glucose level, HDL cholesterol, and triglycerides). They applied the analysis to data from 1,561 of the STEP 1 participants and 766 participants in the STEP 4 study.
“There is no better tool I know of to predict diabetes incidence,” commented Michael A. Nauck, MD, professor and chief of clinical research, diabetes division, St. Josef Hospital, Bochum, Germany.
In his opinion, the CMDS tool is appropriate for estimating the risk of developing incident type 2 diabetes in populations but not in specific individuals.
The new analyses also showed that, in STEP 1, the impact of semaglutide on reducing future risk of developing type 2 diabetes was roughly the same regardless of whether participants entered the study with prediabetes or were normoglycemic at entry.
Blood glucose changes confer the biggest effect
The biggest contributor among the five modifiable components of the CMDS tool for altering the predicted risk for incident diabetes was the reduction in blood glucose produced by semaglutide treatment, which influenced just under half of the change in predicted risk, Dr. Garvey said. The four other modifiable components had roughly similar individual effects on predicted risk, with change in BMI influencing about 15% of the observed effect.
“Our analysis shows that semaglutide treatment is preventing diabetes via several mechanisms. It’s not just a reduction in glucose,” Dr. Garvey said.
Dr. Nauck cautioned, however, that it is hard to judge the efficacy of an intervention like semaglutide for preventing incident diabetes when one of its effects is to dampen down hyperglycemia, the signal indicator of diabetes onset.
Indeed, semaglutide was first approved as a treatment for type 2 diabetes (known as Ozempic, Novo Nordisk) at slightly lower doses than it is approved for obesity. It is also available as an oral agent to treat diabetes (Rybelsus).
Dr. Nauck also noted that the results from at least one previously reported study had already shown the same relationship between treatment with the GLP-1 agonist liraglutide as an anti-obesity agent (3.0 mg dose daily, known as Saxenda) and a reduced subsequent incidence of type 2 diabetes but using actual clinical outcomes during 3 years of follow-up rather than a calculated projection of diabetes likelihood.
The SCALE Obesity and Prediabetes trial randomized 2,254 people with prediabetes and overweight or obesity to weekly treatment with 3.0 mg of liraglutide or placebo. After 160 weeks on treatment, the cumulative incidence of type 2 diabetes was 2% in those who received liraglutide and 6% among those on placebo, with a significant hazard ratio reduction of 79% in the incidence of diabetes on liraglutide treatment.
The STEP 1 and STEP 4 trials were sponsored by Novo Nordisk, the company that markets semaglutide (Wegovy). Dr. Garvey has reported serving as an advisor without compensation to Novo Nordisk as well as Boehringer Ingelheim, Eli Lilly, Jazz, and Pfizer. He is also a site principal investigator for multicentered clinical trials sponsored by the University of Alabama at Birmingham and funded by Novo Nordisk, Eli Lilly, Epitomee, and Pfizer. Dr .Galindo has reported being a consultant or advisor for Boehringer Ingelheim, Eli Lilly, Pfizer, Sanofi, and Weight Watchers and receiving research funding from Dexcom, Eli Lilly, and Novo Nordisk. Dr. Nauck has reported being an advisor or consultant to Novo Nordisk as well as to Boehringer Ingelheim, Eli Lilly, Menarini/Berlin Chemie, MSD, Regor, and ShouTi/Gasherbrum, receiving research funding from MSD, being a member of a data monitoring and safety board for Inventiva, and being a speaker on behalf of Novo Nordisk as well as for Eli Lilly, Menarini/Berlin Chemie, MSD, and Sun Pharmaceuticals.
A version of this article first appeared on Medscape.com.
Treatment of people with obesity but without diabetes with the glucagon-like peptide-1 (GLP-1) agonist semaglutide (Wegovy) – hailed at its approval in 2021 as a “game changer” for the treatment of obesity – led to beneficial changes in body mass index (BMI), glycemic control, and other clinical measures.
This collectively cut the calculated risk for possible future development of type 2 diabetes in study participants by more than half, based on post-hoc analysis of data from two pivotal trials that compared semaglutide with placebo.
The findings “suggest that semaglutide could help prevent type 2 diabetes in people with overweight or obesity,” said W. Timothy Garvey, MD, in a presentation at the annual meeting of the European Association for the Study of Diabetes.
Asked to comment, Rodolfo J. Galindo, MD, said: “We devote a significant amount of effort to treating people with diabetes but very little effort for diabetes prevention. We hope that further scientific findings showing the benefits of weight loss, as illustrated by [Dr.] Garvey [and colleagues], for diabetes prevention will change the pandemic of adiposity-based chronic disease.”
GLP-1 agonists as complication-reducing agents
Finding a link between treatment with semaglutide and a reduced future risk of developing type 2 diabetes is important because it shows that this regimen is not just a BMI-centric approach to treating people with obesity but is also a way to potentially reduce complications of obesity such as diabetes onset, explained Dr. Garvey, a professor and director of the Diabetes Research Center at the University of Alabama at Birmingham.
Recent obesity-management recommendations have focused on interventions aimed at avoiding complications, as in 2016 guidelines from the American Association of Clinical Endocrinologists and the American College of Endocrinology, he noted.
Having evidence that treatment with a GLP-1 agonist such as semaglutide can reduce the incidence of diabetes in people with obesity might also help convince payers to more uniformly reimburse for this type of obesity intervention, which up to now has commonly faced coverage limitations, especially in the United States, he said in an interview.
Dr. Garvey added that evidence for a reduction in the incidence of cardiovascular disease complications such as myocardial infarction and stroke may need to join diabetes prevention as proven effects from obesity intervention before coverage decisions change.
He cited the SELECT trial, which is testing the hypothesis that semaglutide treatment of people with overweight or obesity can reduce the incidence of cardiovascular events in about 17,500 participants and with expected completion toward the end of 2023.
“A complication-centric approach to management of people with obesity needs prediction tools that allow a focus on prevention strategies for people with obesity who are at increased risk of developing diabetes,” commented Dr. Galindo, an endocrinologist at Emory University, Atlanta, in an interview.
Combined analysis of STEP 1 and STEP 4 data
The analysis conducted by Dr. Garvey and colleagues used data from the STEP 1 trial, which compared semaglutide 2.4 mg subcutaneous once weekly with placebo for weight loss in more than 1,500 people predominantly with obesity (about 6% were overweight) and showed that after 68 weeks semaglutide cut the calculated risk of developing type 2 diabetes over the subsequent 10 years from 18% at baseline to 7%, compared with a drop from 18% at baseline to 16% among those who received placebo.
A second, similar analysis of data from people predominantly with obesity in the STEP 4 trial – which treated around 800 people with semaglutide 2.4 mg for 20 weeks and then randomized them to placebo or continued semaglutide treatment – showed that semaglutide treatment cut their calculated 10-year risk for incident type 2 diabetes from 20% at baseline to about 11% after 20 weeks. The risk rebounded in the study participants who then switched from semaglutide to placebo. Among those randomized to remain on semaglutide for a total of 68 weeks, the 10-year risk fell further to 8%.
Dr. Garvey and associates used a validated prognostic formula, the cardiometabolic disease staging (CMDS) tool, they had previously developed and reported to calculate 10-year risk for development of type 2 diabetes based on three unmodifiable factors (age, sex, and race) and five modifiable factors (BMI, blood pressure, glucose level, HDL cholesterol, and triglycerides). They applied the analysis to data from 1,561 of the STEP 1 participants and 766 participants in the STEP 4 study.
“There is no better tool I know of to predict diabetes incidence,” commented Michael A. Nauck, MD, professor and chief of clinical research, diabetes division, St. Josef Hospital, Bochum, Germany.
In his opinion, the CMDS tool is appropriate for estimating the risk of developing incident type 2 diabetes in populations but not in specific individuals.
The new analyses also showed that, in STEP 1, the impact of semaglutide on reducing future risk of developing type 2 diabetes was roughly the same regardless of whether participants entered the study with prediabetes or were normoglycemic at entry.
Blood glucose changes confer the biggest effect
The biggest contributor among the five modifiable components of the CMDS tool for altering the predicted risk for incident diabetes was the reduction in blood glucose produced by semaglutide treatment, which influenced just under half of the change in predicted risk, Dr. Garvey said. The four other modifiable components had roughly similar individual effects on predicted risk, with change in BMI influencing about 15% of the observed effect.
“Our analysis shows that semaglutide treatment is preventing diabetes via several mechanisms. It’s not just a reduction in glucose,” Dr. Garvey said.
Dr. Nauck cautioned, however, that it is hard to judge the efficacy of an intervention like semaglutide for preventing incident diabetes when one of its effects is to dampen down hyperglycemia, the signal indicator of diabetes onset.
Indeed, semaglutide was first approved as a treatment for type 2 diabetes (known as Ozempic, Novo Nordisk) at slightly lower doses than it is approved for obesity. It is also available as an oral agent to treat diabetes (Rybelsus).
Dr. Nauck also noted that the results from at least one previously reported study had already shown the same relationship between treatment with the GLP-1 agonist liraglutide as an anti-obesity agent (3.0 mg dose daily, known as Saxenda) and a reduced subsequent incidence of type 2 diabetes but using actual clinical outcomes during 3 years of follow-up rather than a calculated projection of diabetes likelihood.
The SCALE Obesity and Prediabetes trial randomized 2,254 people with prediabetes and overweight or obesity to weekly treatment with 3.0 mg of liraglutide or placebo. After 160 weeks on treatment, the cumulative incidence of type 2 diabetes was 2% in those who received liraglutide and 6% among those on placebo, with a significant hazard ratio reduction of 79% in the incidence of diabetes on liraglutide treatment.
The STEP 1 and STEP 4 trials were sponsored by Novo Nordisk, the company that markets semaglutide (Wegovy). Dr. Garvey has reported serving as an advisor without compensation to Novo Nordisk as well as Boehringer Ingelheim, Eli Lilly, Jazz, and Pfizer. He is also a site principal investigator for multicentered clinical trials sponsored by the University of Alabama at Birmingham and funded by Novo Nordisk, Eli Lilly, Epitomee, and Pfizer. Dr .Galindo has reported being a consultant or advisor for Boehringer Ingelheim, Eli Lilly, Pfizer, Sanofi, and Weight Watchers and receiving research funding from Dexcom, Eli Lilly, and Novo Nordisk. Dr. Nauck has reported being an advisor or consultant to Novo Nordisk as well as to Boehringer Ingelheim, Eli Lilly, Menarini/Berlin Chemie, MSD, Regor, and ShouTi/Gasherbrum, receiving research funding from MSD, being a member of a data monitoring and safety board for Inventiva, and being a speaker on behalf of Novo Nordisk as well as for Eli Lilly, Menarini/Berlin Chemie, MSD, and Sun Pharmaceuticals.
A version of this article first appeared on Medscape.com.
Treatment of people with obesity but without diabetes with the glucagon-like peptide-1 (GLP-1) agonist semaglutide (Wegovy) – hailed at its approval in 2021 as a “game changer” for the treatment of obesity – led to beneficial changes in body mass index (BMI), glycemic control, and other clinical measures.
This collectively cut the calculated risk for possible future development of type 2 diabetes in study participants by more than half, based on post-hoc analysis of data from two pivotal trials that compared semaglutide with placebo.
The findings “suggest that semaglutide could help prevent type 2 diabetes in people with overweight or obesity,” said W. Timothy Garvey, MD, in a presentation at the annual meeting of the European Association for the Study of Diabetes.
Asked to comment, Rodolfo J. Galindo, MD, said: “We devote a significant amount of effort to treating people with diabetes but very little effort for diabetes prevention. We hope that further scientific findings showing the benefits of weight loss, as illustrated by [Dr.] Garvey [and colleagues], for diabetes prevention will change the pandemic of adiposity-based chronic disease.”
GLP-1 agonists as complication-reducing agents
Finding a link between treatment with semaglutide and a reduced future risk of developing type 2 diabetes is important because it shows that this regimen is not just a BMI-centric approach to treating people with obesity but is also a way to potentially reduce complications of obesity such as diabetes onset, explained Dr. Garvey, a professor and director of the Diabetes Research Center at the University of Alabama at Birmingham.
Recent obesity-management recommendations have focused on interventions aimed at avoiding complications, as in 2016 guidelines from the American Association of Clinical Endocrinologists and the American College of Endocrinology, he noted.
Having evidence that treatment with a GLP-1 agonist such as semaglutide can reduce the incidence of diabetes in people with obesity might also help convince payers to more uniformly reimburse for this type of obesity intervention, which up to now has commonly faced coverage limitations, especially in the United States, he said in an interview.
Dr. Garvey added that evidence for a reduction in the incidence of cardiovascular disease complications such as myocardial infarction and stroke may need to join diabetes prevention as proven effects from obesity intervention before coverage decisions change.
He cited the SELECT trial, which is testing the hypothesis that semaglutide treatment of people with overweight or obesity can reduce the incidence of cardiovascular events in about 17,500 participants and with expected completion toward the end of 2023.
“A complication-centric approach to management of people with obesity needs prediction tools that allow a focus on prevention strategies for people with obesity who are at increased risk of developing diabetes,” commented Dr. Galindo, an endocrinologist at Emory University, Atlanta, in an interview.
Combined analysis of STEP 1 and STEP 4 data
The analysis conducted by Dr. Garvey and colleagues used data from the STEP 1 trial, which compared semaglutide 2.4 mg subcutaneous once weekly with placebo for weight loss in more than 1,500 people predominantly with obesity (about 6% were overweight) and showed that after 68 weeks semaglutide cut the calculated risk of developing type 2 diabetes over the subsequent 10 years from 18% at baseline to 7%, compared with a drop from 18% at baseline to 16% among those who received placebo.
A second, similar analysis of data from people predominantly with obesity in the STEP 4 trial – which treated around 800 people with semaglutide 2.4 mg for 20 weeks and then randomized them to placebo or continued semaglutide treatment – showed that semaglutide treatment cut their calculated 10-year risk for incident type 2 diabetes from 20% at baseline to about 11% after 20 weeks. The risk rebounded in the study participants who then switched from semaglutide to placebo. Among those randomized to remain on semaglutide for a total of 68 weeks, the 10-year risk fell further to 8%.
Dr. Garvey and associates used a validated prognostic formula, the cardiometabolic disease staging (CMDS) tool, they had previously developed and reported to calculate 10-year risk for development of type 2 diabetes based on three unmodifiable factors (age, sex, and race) and five modifiable factors (BMI, blood pressure, glucose level, HDL cholesterol, and triglycerides). They applied the analysis to data from 1,561 of the STEP 1 participants and 766 participants in the STEP 4 study.
“There is no better tool I know of to predict diabetes incidence,” commented Michael A. Nauck, MD, professor and chief of clinical research, diabetes division, St. Josef Hospital, Bochum, Germany.
In his opinion, the CMDS tool is appropriate for estimating the risk of developing incident type 2 diabetes in populations but not in specific individuals.
The new analyses also showed that, in STEP 1, the impact of semaglutide on reducing future risk of developing type 2 diabetes was roughly the same regardless of whether participants entered the study with prediabetes or were normoglycemic at entry.
Blood glucose changes confer the biggest effect
The biggest contributor among the five modifiable components of the CMDS tool for altering the predicted risk for incident diabetes was the reduction in blood glucose produced by semaglutide treatment, which influenced just under half of the change in predicted risk, Dr. Garvey said. The four other modifiable components had roughly similar individual effects on predicted risk, with change in BMI influencing about 15% of the observed effect.
“Our analysis shows that semaglutide treatment is preventing diabetes via several mechanisms. It’s not just a reduction in glucose,” Dr. Garvey said.
Dr. Nauck cautioned, however, that it is hard to judge the efficacy of an intervention like semaglutide for preventing incident diabetes when one of its effects is to dampen down hyperglycemia, the signal indicator of diabetes onset.
Indeed, semaglutide was first approved as a treatment for type 2 diabetes (known as Ozempic, Novo Nordisk) at slightly lower doses than it is approved for obesity. It is also available as an oral agent to treat diabetes (Rybelsus).
Dr. Nauck also noted that the results from at least one previously reported study had already shown the same relationship between treatment with the GLP-1 agonist liraglutide as an anti-obesity agent (3.0 mg dose daily, known as Saxenda) and a reduced subsequent incidence of type 2 diabetes but using actual clinical outcomes during 3 years of follow-up rather than a calculated projection of diabetes likelihood.
The SCALE Obesity and Prediabetes trial randomized 2,254 people with prediabetes and overweight or obesity to weekly treatment with 3.0 mg of liraglutide or placebo. After 160 weeks on treatment, the cumulative incidence of type 2 diabetes was 2% in those who received liraglutide and 6% among those on placebo, with a significant hazard ratio reduction of 79% in the incidence of diabetes on liraglutide treatment.
The STEP 1 and STEP 4 trials were sponsored by Novo Nordisk, the company that markets semaglutide (Wegovy). Dr. Garvey has reported serving as an advisor without compensation to Novo Nordisk as well as Boehringer Ingelheim, Eli Lilly, Jazz, and Pfizer. He is also a site principal investigator for multicentered clinical trials sponsored by the University of Alabama at Birmingham and funded by Novo Nordisk, Eli Lilly, Epitomee, and Pfizer. Dr .Galindo has reported being a consultant or advisor for Boehringer Ingelheim, Eli Lilly, Pfizer, Sanofi, and Weight Watchers and receiving research funding from Dexcom, Eli Lilly, and Novo Nordisk. Dr. Nauck has reported being an advisor or consultant to Novo Nordisk as well as to Boehringer Ingelheim, Eli Lilly, Menarini/Berlin Chemie, MSD, Regor, and ShouTi/Gasherbrum, receiving research funding from MSD, being a member of a data monitoring and safety board for Inventiva, and being a speaker on behalf of Novo Nordisk as well as for Eli Lilly, Menarini/Berlin Chemie, MSD, and Sun Pharmaceuticals.
A version of this article first appeared on Medscape.com.
WHO releases six ‘action steps’ to combat global disparities in Parkinson’s disease
Since 2000, Parkinson’s disease has increased 81% and related deaths have increased 100% globally. In addition, many patients affected by Parkinson’s disease live in low- and middle-income countries and experience large inequalities in access to neurologic care and essential medicines.
To address these issues, the Brain Health Unit at the WHO developed six “action steps” it says are urgently required to combat global disparities in Parkinson’s disease.
The need for action is great, said lead author Nicoline Schiess, MD, MPH, a neurologist and technical officer in the WHO’s Brain Health Unit in Geneva.
“In adults, disorders of the nervous system are the leading cause of disability adjusted life years, or DALYs, and the second leading cause of death globally, accounting for 9 million deaths per year,” Dr. Schiess said.
The WHO’s recommendations were published online recently as a “Special Communication” in JAMA Neurology.
Serious public health challenge
Parkinson’s disease is the fastest growing disorder in terms of death and disability, and it is estimated that it caused 329,000 deaths in 2019 – an increase of more than 100% since 2000.
“The rise in cases is thought to be multifactorial and is likely affected by factors such as aging populations and environmental exposures, such as certain pesticides. With these rapidly increasing numbers, compounded by a lack of specialists and medicines in low- and middle-income countries, Parkinson’s disease presents a serious public health challenge,” Dr. Schiess said.
The publication of the six action steps is targeted toward clinicians and researchers who work in Parkinson’s disease, she added. The steps address the following areas:
- 1. Disease burden
- 2. Advocacy and awareness
- 3. Prevention and risk reduction
- 4. Diagnosis, treatment, and care
- 5. Caregiver support
- 6. Research
Dr. Schiess noted that data on disease burden are lacking in certain areas of the world, such as low- and middle-income countries, and information “based on race and ethnicity are inconsistent. Studies are needed to establish more representative epidemiological data.”
She said that advocacy and awareness are particularly important since young people may not be aware they can also develop Parkinson’s disease, and sex and race differences can factor in to the potential for delays in diagnosis and care. “This is often due to the incorrect perception that Parkinson’s disease only affects older people,” she noted.
In addition, “a substantial need exists to identify risks for Parkinson’s disease – in particular the risks we can mitigate,” said Dr. Schiess, citing pesticide exposure as one example. “The evidence linking pesticide exposure, for example paraquat and chlorpyrifos, with the risk of developing Parkinson’s disease is substantial. And yet in many countries, these products are still being used.”
Under the heading of diagnosis, treatment, and care, Dr. Schiess noted that patients with Parkinson’s disease in “low resource settings” and low- to middle-income countries are unable to obtain “even the most basic medications” to treat Parkinson’s disease.
“Strengthening health and social systems, and building capacity to improve medical care, including rehabilitation and palliative care and medication access, are vital. Also, education and training of primary health care professionals, growing the neurological workforce, and increasing the use of digital technology such as telemedicine, are key mechanisms to improving diagnosis and sustainability of care,” she said.
For caregiver support, Dr. Schiess pointed out that the progressive nature of the disease and timing of onset are contributors to increased caregiver burden. Other contributors, as the disease advances in a patient, include the development of cognitive impairment, psychiatric manifestations, and sleep disruption.
“Solutions that could decrease the burden on caregivers include providing an accurate and timely diagnosis and training and education to caregivers, such as the WHO iSUPPORT program, as well as psychosocial, financial, and community-based support,” said Dr. Schiess.
For research, she noted that the amount of studies in the field of Parkinson’s disease has grown because of increased funding and a greater number of initiatives over the past 2 decades.
“Continuing to build on this momentum is important in order to generate new treatment options, better care, and research capacity, especially in low- and middle-income countries,” she said.
Dr. Schiess emphasized the urgency for adopting these measures as cases of Parkinson’s disease continue to rise.
“The take-away message for clinicians is that Parkinson disease is a growing global public health issue. There is a pressing need for a global public health response to address health and social requirements for people with Parkinson’s disease,” she said.
Dr. Schiess reports having received grants from the Edmond J. Safra Foundation paid to her institution during the conduct of the study.
A version of this article first appeared on Medscape.com.
Since 2000, Parkinson’s disease has increased 81% and related deaths have increased 100% globally. In addition, many patients affected by Parkinson’s disease live in low- and middle-income countries and experience large inequalities in access to neurologic care and essential medicines.
To address these issues, the Brain Health Unit at the WHO developed six “action steps” it says are urgently required to combat global disparities in Parkinson’s disease.
The need for action is great, said lead author Nicoline Schiess, MD, MPH, a neurologist and technical officer in the WHO’s Brain Health Unit in Geneva.
“In adults, disorders of the nervous system are the leading cause of disability adjusted life years, or DALYs, and the second leading cause of death globally, accounting for 9 million deaths per year,” Dr. Schiess said.
The WHO’s recommendations were published online recently as a “Special Communication” in JAMA Neurology.
Serious public health challenge
Parkinson’s disease is the fastest growing disorder in terms of death and disability, and it is estimated that it caused 329,000 deaths in 2019 – an increase of more than 100% since 2000.
“The rise in cases is thought to be multifactorial and is likely affected by factors such as aging populations and environmental exposures, such as certain pesticides. With these rapidly increasing numbers, compounded by a lack of specialists and medicines in low- and middle-income countries, Parkinson’s disease presents a serious public health challenge,” Dr. Schiess said.
The publication of the six action steps is targeted toward clinicians and researchers who work in Parkinson’s disease, she added. The steps address the following areas:
- 1. Disease burden
- 2. Advocacy and awareness
- 3. Prevention and risk reduction
- 4. Diagnosis, treatment, and care
- 5. Caregiver support
- 6. Research
Dr. Schiess noted that data on disease burden are lacking in certain areas of the world, such as low- and middle-income countries, and information “based on race and ethnicity are inconsistent. Studies are needed to establish more representative epidemiological data.”
She said that advocacy and awareness are particularly important since young people may not be aware they can also develop Parkinson’s disease, and sex and race differences can factor in to the potential for delays in diagnosis and care. “This is often due to the incorrect perception that Parkinson’s disease only affects older people,” she noted.
In addition, “a substantial need exists to identify risks for Parkinson’s disease – in particular the risks we can mitigate,” said Dr. Schiess, citing pesticide exposure as one example. “The evidence linking pesticide exposure, for example paraquat and chlorpyrifos, with the risk of developing Parkinson’s disease is substantial. And yet in many countries, these products are still being used.”
Under the heading of diagnosis, treatment, and care, Dr. Schiess noted that patients with Parkinson’s disease in “low resource settings” and low- to middle-income countries are unable to obtain “even the most basic medications” to treat Parkinson’s disease.
“Strengthening health and social systems, and building capacity to improve medical care, including rehabilitation and palliative care and medication access, are vital. Also, education and training of primary health care professionals, growing the neurological workforce, and increasing the use of digital technology such as telemedicine, are key mechanisms to improving diagnosis and sustainability of care,” she said.
For caregiver support, Dr. Schiess pointed out that the progressive nature of the disease and timing of onset are contributors to increased caregiver burden. Other contributors, as the disease advances in a patient, include the development of cognitive impairment, psychiatric manifestations, and sleep disruption.
“Solutions that could decrease the burden on caregivers include providing an accurate and timely diagnosis and training and education to caregivers, such as the WHO iSUPPORT program, as well as psychosocial, financial, and community-based support,” said Dr. Schiess.
For research, she noted that the amount of studies in the field of Parkinson’s disease has grown because of increased funding and a greater number of initiatives over the past 2 decades.
“Continuing to build on this momentum is important in order to generate new treatment options, better care, and research capacity, especially in low- and middle-income countries,” she said.
Dr. Schiess emphasized the urgency for adopting these measures as cases of Parkinson’s disease continue to rise.
“The take-away message for clinicians is that Parkinson disease is a growing global public health issue. There is a pressing need for a global public health response to address health and social requirements for people with Parkinson’s disease,” she said.
Dr. Schiess reports having received grants from the Edmond J. Safra Foundation paid to her institution during the conduct of the study.
A version of this article first appeared on Medscape.com.
Since 2000, Parkinson’s disease has increased 81% and related deaths have increased 100% globally. In addition, many patients affected by Parkinson’s disease live in low- and middle-income countries and experience large inequalities in access to neurologic care and essential medicines.
To address these issues, the Brain Health Unit at the WHO developed six “action steps” it says are urgently required to combat global disparities in Parkinson’s disease.
The need for action is great, said lead author Nicoline Schiess, MD, MPH, a neurologist and technical officer in the WHO’s Brain Health Unit in Geneva.
“In adults, disorders of the nervous system are the leading cause of disability adjusted life years, or DALYs, and the second leading cause of death globally, accounting for 9 million deaths per year,” Dr. Schiess said.
The WHO’s recommendations were published online recently as a “Special Communication” in JAMA Neurology.
Serious public health challenge
Parkinson’s disease is the fastest growing disorder in terms of death and disability, and it is estimated that it caused 329,000 deaths in 2019 – an increase of more than 100% since 2000.
“The rise in cases is thought to be multifactorial and is likely affected by factors such as aging populations and environmental exposures, such as certain pesticides. With these rapidly increasing numbers, compounded by a lack of specialists and medicines in low- and middle-income countries, Parkinson’s disease presents a serious public health challenge,” Dr. Schiess said.
The publication of the six action steps is targeted toward clinicians and researchers who work in Parkinson’s disease, she added. The steps address the following areas:
- 1. Disease burden
- 2. Advocacy and awareness
- 3. Prevention and risk reduction
- 4. Diagnosis, treatment, and care
- 5. Caregiver support
- 6. Research
Dr. Schiess noted that data on disease burden are lacking in certain areas of the world, such as low- and middle-income countries, and information “based on race and ethnicity are inconsistent. Studies are needed to establish more representative epidemiological data.”
She said that advocacy and awareness are particularly important since young people may not be aware they can also develop Parkinson’s disease, and sex and race differences can factor in to the potential for delays in diagnosis and care. “This is often due to the incorrect perception that Parkinson’s disease only affects older people,” she noted.
In addition, “a substantial need exists to identify risks for Parkinson’s disease – in particular the risks we can mitigate,” said Dr. Schiess, citing pesticide exposure as one example. “The evidence linking pesticide exposure, for example paraquat and chlorpyrifos, with the risk of developing Parkinson’s disease is substantial. And yet in many countries, these products are still being used.”
Under the heading of diagnosis, treatment, and care, Dr. Schiess noted that patients with Parkinson’s disease in “low resource settings” and low- to middle-income countries are unable to obtain “even the most basic medications” to treat Parkinson’s disease.
“Strengthening health and social systems, and building capacity to improve medical care, including rehabilitation and palliative care and medication access, are vital. Also, education and training of primary health care professionals, growing the neurological workforce, and increasing the use of digital technology such as telemedicine, are key mechanisms to improving diagnosis and sustainability of care,” she said.
For caregiver support, Dr. Schiess pointed out that the progressive nature of the disease and timing of onset are contributors to increased caregiver burden. Other contributors, as the disease advances in a patient, include the development of cognitive impairment, psychiatric manifestations, and sleep disruption.
“Solutions that could decrease the burden on caregivers include providing an accurate and timely diagnosis and training and education to caregivers, such as the WHO iSUPPORT program, as well as psychosocial, financial, and community-based support,” said Dr. Schiess.
For research, she noted that the amount of studies in the field of Parkinson’s disease has grown because of increased funding and a greater number of initiatives over the past 2 decades.
“Continuing to build on this momentum is important in order to generate new treatment options, better care, and research capacity, especially in low- and middle-income countries,” she said.
Dr. Schiess emphasized the urgency for adopting these measures as cases of Parkinson’s disease continue to rise.
“The take-away message for clinicians is that Parkinson disease is a growing global public health issue. There is a pressing need for a global public health response to address health and social requirements for people with Parkinson’s disease,” she said.
Dr. Schiess reports having received grants from the Edmond J. Safra Foundation paid to her institution during the conduct of the study.
A version of this article first appeared on Medscape.com.
Experts sound alarm on ruling threatening preventive cancer care
In a statement, the groups highlighted that the decision “would result in a return to financial and other barriers proven to discourage Americans from obtaining lifesaving, preventive care.”
The ruling, issued earlier in September by a federal district judge in Texas, essentially says that the U.S. Preventive Services Task Force has no authority to determine which preventive care services must be fully covered by insurance companies – an ability granted by the Affordable Care Act (ACA).
Judge Reed O’Connor ruled that the method of appointing officers to the USPSTF is unconstitutional, which means the task force’s recommendations for no-cost preventive health care may no longer be guaranteed under the ACA for millions of insured Americans.
The judgment, however, is not yet final, and individuals still have access to these preventive services. The judge must first make the scope of the ruling clear, and the decision will likely be appealed. In addition, the decision does not affect the authority of two other entities that make recommendations about vaccinations and preventive care for infants, children, and adolescents.
But experts are concerned that the ruling will force some individuals to pay out of pocket for preventive cancer screenings and other care that would otherwise have been fully covered by insurance.
After the ruling, a group of 26 patient groups, including the American Cancer Society Cancer Action Network and the Leukemia and Lymphoma Society, took a stand.
In a statement, the groups highlighted that “access to preventive health care can prevent both disease and early death.” Under the ACA, more than 150 million Americans have benefited from expanded access to these services, and research reveals that high-quality coverage – which includes preventive services – improves health, reduces health disparities, and lowers health care costs. “This ruling directly threatens these benefits,” they explained.
Lisa Lacasse, MBA, president of ACS CAN, agreed that the ruling “threatens to erode more than a decade of progress reducing cancer deaths and suffering.”
In a statement, the ACS CAN urged the government to “swiftly appeal” the decision.
“We cannot risk returning to a system wherein every individual has to interpret their complex insurance plans to determine if a recommended mammogram will be covered or to determine how much their colonoscopy may cost,” Ms. Lacasse told this news organization.
For now, Ms. Lacasse urged patients and providers to remember that no changes to coverage requirements will occur while litigation continues.
“All preventive services required under the Affordable Care Act remain in place with no cost sharing for enrollees,” she said. “ACS CAN will continue to support and advocate for coverage of preventive services at no cost sharing.”
A version of this article first appeared on Medscape.com.
In a statement, the groups highlighted that the decision “would result in a return to financial and other barriers proven to discourage Americans from obtaining lifesaving, preventive care.”
The ruling, issued earlier in September by a federal district judge in Texas, essentially says that the U.S. Preventive Services Task Force has no authority to determine which preventive care services must be fully covered by insurance companies – an ability granted by the Affordable Care Act (ACA).
Judge Reed O’Connor ruled that the method of appointing officers to the USPSTF is unconstitutional, which means the task force’s recommendations for no-cost preventive health care may no longer be guaranteed under the ACA for millions of insured Americans.
The judgment, however, is not yet final, and individuals still have access to these preventive services. The judge must first make the scope of the ruling clear, and the decision will likely be appealed. In addition, the decision does not affect the authority of two other entities that make recommendations about vaccinations and preventive care for infants, children, and adolescents.
But experts are concerned that the ruling will force some individuals to pay out of pocket for preventive cancer screenings and other care that would otherwise have been fully covered by insurance.
After the ruling, a group of 26 patient groups, including the American Cancer Society Cancer Action Network and the Leukemia and Lymphoma Society, took a stand.
In a statement, the groups highlighted that “access to preventive health care can prevent both disease and early death.” Under the ACA, more than 150 million Americans have benefited from expanded access to these services, and research reveals that high-quality coverage – which includes preventive services – improves health, reduces health disparities, and lowers health care costs. “This ruling directly threatens these benefits,” they explained.
Lisa Lacasse, MBA, president of ACS CAN, agreed that the ruling “threatens to erode more than a decade of progress reducing cancer deaths and suffering.”
In a statement, the ACS CAN urged the government to “swiftly appeal” the decision.
“We cannot risk returning to a system wherein every individual has to interpret their complex insurance plans to determine if a recommended mammogram will be covered or to determine how much their colonoscopy may cost,” Ms. Lacasse told this news organization.
For now, Ms. Lacasse urged patients and providers to remember that no changes to coverage requirements will occur while litigation continues.
“All preventive services required under the Affordable Care Act remain in place with no cost sharing for enrollees,” she said. “ACS CAN will continue to support and advocate for coverage of preventive services at no cost sharing.”
A version of this article first appeared on Medscape.com.
In a statement, the groups highlighted that the decision “would result in a return to financial and other barriers proven to discourage Americans from obtaining lifesaving, preventive care.”
The ruling, issued earlier in September by a federal district judge in Texas, essentially says that the U.S. Preventive Services Task Force has no authority to determine which preventive care services must be fully covered by insurance companies – an ability granted by the Affordable Care Act (ACA).
Judge Reed O’Connor ruled that the method of appointing officers to the USPSTF is unconstitutional, which means the task force’s recommendations for no-cost preventive health care may no longer be guaranteed under the ACA for millions of insured Americans.
The judgment, however, is not yet final, and individuals still have access to these preventive services. The judge must first make the scope of the ruling clear, and the decision will likely be appealed. In addition, the decision does not affect the authority of two other entities that make recommendations about vaccinations and preventive care for infants, children, and adolescents.
But experts are concerned that the ruling will force some individuals to pay out of pocket for preventive cancer screenings and other care that would otherwise have been fully covered by insurance.
After the ruling, a group of 26 patient groups, including the American Cancer Society Cancer Action Network and the Leukemia and Lymphoma Society, took a stand.
In a statement, the groups highlighted that “access to preventive health care can prevent both disease and early death.” Under the ACA, more than 150 million Americans have benefited from expanded access to these services, and research reveals that high-quality coverage – which includes preventive services – improves health, reduces health disparities, and lowers health care costs. “This ruling directly threatens these benefits,” they explained.
Lisa Lacasse, MBA, president of ACS CAN, agreed that the ruling “threatens to erode more than a decade of progress reducing cancer deaths and suffering.”
In a statement, the ACS CAN urged the government to “swiftly appeal” the decision.
“We cannot risk returning to a system wherein every individual has to interpret their complex insurance plans to determine if a recommended mammogram will be covered or to determine how much their colonoscopy may cost,” Ms. Lacasse told this news organization.
For now, Ms. Lacasse urged patients and providers to remember that no changes to coverage requirements will occur while litigation continues.
“All preventive services required under the Affordable Care Act remain in place with no cost sharing for enrollees,” she said. “ACS CAN will continue to support and advocate for coverage of preventive services at no cost sharing.”
A version of this article first appeared on Medscape.com.
A farewell to arms? Drug approvals based on single-arm trials can be flawed
PARIS – with results that should only be used, under certain conditions, for accelerated approvals that should then be followed by confirmatory studies.
In fact, many drugs approved over the last decade based solely on data from single-arm trials have been subsequently withdrawn when put through the rigors of a head-to-head randomized controlled trial, according to Bishal Gyawali, MD, PhD, from the department of oncology at Queen’s University, Kingston, Ont.
“Single-arm trials are not meant to provide confirmatory evidence sufficient for approval; However, that ship has sailed, and we have several drugs that are approved on the basis of single-arm trials, but we need to make sure that those approvals are accelerated or conditional approvals, not regular approval,” he said in a presentation included in a special session on drug approvals at the European Society for Medical Oncology Congress.
“We should not allow premature regular approval based on single-arm trials, because once a drug gets conditional approval, access is not an issue. Patients will have access to the drug anyway, but we should ensure that robust evidence follows, and long-term follow-up data are needed to develop confidence in the efficacy outcomes that are seen in single-arm trials,” he said.
In many cases, single-arm trials are large enough or of long enough duration that investigators could have reasonably performed a randomized controlled trial (RCT) in the first place, Dr. Gyawali added.
Why do single-arm trials?
The term “single-arm registration trial” is something of an oxymoron, he said, noting that the purpose of such trials should be whether to take the drug to a phase 3, randomized trial. But as authors of a 2019 study in JAMA Network Open showed, of a sample of phase 3 RCTs, 42% did not have a prior phase 2 trial, and 28% had a negative phase 2 trial. Single-arm trials may be acceptable for conditional drug approvals if all of the following conditions are met:
- A RCT is not possible because the disease is rare or randomization would be unethical.
- The safety of the drug is established and its potential benefits outweigh its risks.
- The drug is associated with a high and durable overall or objective response rate.
- The mechanism of action is supported by a strong scientific rationale, and if the drug may meet an unmet medical need.
Survival endpoints won’t do
Efficacy endpoints typically used in RCTs, such as progression-free survival (PFS) and overall survival (OS) can be misleading because they may be a result of the natural history of the disease and not the drug being tested, whereas ORRs are almost certainly reflective of the action of the drug itself, because spontaneous tumor regression is a rare phenomenon, Dr. Gyawali said.
He cautioned, however, that the ORR of placebo is not zero percent. For example in a 2018 study of sorafenib (Nexavar) versus placebo for advanced or refractory desmoid tumors, the ORR with the active drug was 33%, and the ORR for placebo was 20%.
It’s also open to question, he said, what constitutes an acceptably high ORR and duration of response, pointing to Food and Drug Administration accelerated approval of an indication for nivolumab (Opdivo) for treatment of patients with hepatocellular carcinoma (HCC) that had progressed on sorafenib. In the single-arm trial used as the basis for approval, the ORRs as assessed by an independent central review committee blinded to the results was 14.3%.
“So, nivolumab in hepatocellular cancer was approved on the basis of a response rate lower than that of placebo, albeit in a different tumor. But the point I’m trying to show here is we don’t have a good definition of what is a good response rate,” he said.
In July 2021, Bristol-Myers Squibb voluntarily withdrew the HCC indication for nivolumab, following negative results of the CheckMate 459 trial and a 5-4 vote against continuing the accelerated approval.
On second thought ...
Citing data compiled by Nathan I. Cherny, MD, from Shaare Zedek Medical Center, Jerusalem, Dr. Gyawali noted that 58 of 161 FDA approvals from 2017 to 2021 of drugs for adult solid tumors were based on single-arm trials. Of the 58 drugs, 39 received accelerated approvals, and 19 received regular approvals; of the 39 that received accelerated approvals, 4 were subsequently withdrawn, 8 were converted to regular approvals, and the remainder continued as accelerated approvals.
Interestingly, the median response rate among all the drugs was 40%, and did not differ between the type of approval received, suggesting that response rates are not predictive of whether a drug will receive a conditional or full-fledged go-ahead.
What’s rare and safe?
The definition of a rare disease in the United States is one that affects fewer than 40,000 per year, and in Europe it’s an incidence rate of less than 6 per 100,000 population, Dr. Gyawali noted. But he argued that even non–small cell lung cancer, the most common form of cancer in the world, could be considered rare if it is broken down into subtypes that are treated according to specific mutations that may occur in a relatively small number of patients.
He also noted that a specific drug’s safety, one of the most important criteria for granting approval to a drug based on a single-arm trial, can be difficult to judge without adequate controls for comparison.
Cherry-picking patients
Winette van der Graaf, MD, president of the European Organization for the Research and Treatment of Cancer, who attended the session where Dr. Gyawali’s presentation was played, said in an interview that clinicians should cast a critical eye on how trials are designed and conducted, including patient selection and choice of endpoints.
“One of the most obvious things to be concerned about is that we’re still having patients with good performance status enrolled, mostly PS 0 or 1, so how representative are these clinical trials for the patients we see in front of us on a daily basis?” she said.
“The other question is radiological endpoints, which we focus on with OS and PFS are most important for patients, especially if you consider that if patients may have asymptomatic disease, and we are only treating them with potentially toxic medication, what are we doing for them? Median overall survival when you look at all of these trials is only 4 months, so we really need to take into account how we affect patients in clinical trials,” she added.
Dr. van der Graaf emphasized that clinical trial investigators need to more routinely incorporate quality of life measures and other patient-reported outcomes in clinical trial results to help regulators and clinicians in practice get a better sense of the true clinical benefit of a new drug.
Dr. Gyawali did not disclose a funding source for his presentation. He reported consulting fees from Vivio Health and research grants from the American Society of Clinical Oncology. Dr. van der Graaf reported no conflicts of interest.
PARIS – with results that should only be used, under certain conditions, for accelerated approvals that should then be followed by confirmatory studies.
In fact, many drugs approved over the last decade based solely on data from single-arm trials have been subsequently withdrawn when put through the rigors of a head-to-head randomized controlled trial, according to Bishal Gyawali, MD, PhD, from the department of oncology at Queen’s University, Kingston, Ont.
“Single-arm trials are not meant to provide confirmatory evidence sufficient for approval; However, that ship has sailed, and we have several drugs that are approved on the basis of single-arm trials, but we need to make sure that those approvals are accelerated or conditional approvals, not regular approval,” he said in a presentation included in a special session on drug approvals at the European Society for Medical Oncology Congress.
“We should not allow premature regular approval based on single-arm trials, because once a drug gets conditional approval, access is not an issue. Patients will have access to the drug anyway, but we should ensure that robust evidence follows, and long-term follow-up data are needed to develop confidence in the efficacy outcomes that are seen in single-arm trials,” he said.
In many cases, single-arm trials are large enough or of long enough duration that investigators could have reasonably performed a randomized controlled trial (RCT) in the first place, Dr. Gyawali added.
Why do single-arm trials?
The term “single-arm registration trial” is something of an oxymoron, he said, noting that the purpose of such trials should be whether to take the drug to a phase 3, randomized trial. But as authors of a 2019 study in JAMA Network Open showed, of a sample of phase 3 RCTs, 42% did not have a prior phase 2 trial, and 28% had a negative phase 2 trial. Single-arm trials may be acceptable for conditional drug approvals if all of the following conditions are met:
- A RCT is not possible because the disease is rare or randomization would be unethical.
- The safety of the drug is established and its potential benefits outweigh its risks.
- The drug is associated with a high and durable overall or objective response rate.
- The mechanism of action is supported by a strong scientific rationale, and if the drug may meet an unmet medical need.
Survival endpoints won’t do
Efficacy endpoints typically used in RCTs, such as progression-free survival (PFS) and overall survival (OS) can be misleading because they may be a result of the natural history of the disease and not the drug being tested, whereas ORRs are almost certainly reflective of the action of the drug itself, because spontaneous tumor regression is a rare phenomenon, Dr. Gyawali said.
He cautioned, however, that the ORR of placebo is not zero percent. For example in a 2018 study of sorafenib (Nexavar) versus placebo for advanced or refractory desmoid tumors, the ORR with the active drug was 33%, and the ORR for placebo was 20%.
It’s also open to question, he said, what constitutes an acceptably high ORR and duration of response, pointing to Food and Drug Administration accelerated approval of an indication for nivolumab (Opdivo) for treatment of patients with hepatocellular carcinoma (HCC) that had progressed on sorafenib. In the single-arm trial used as the basis for approval, the ORRs as assessed by an independent central review committee blinded to the results was 14.3%.
“So, nivolumab in hepatocellular cancer was approved on the basis of a response rate lower than that of placebo, albeit in a different tumor. But the point I’m trying to show here is we don’t have a good definition of what is a good response rate,” he said.
In July 2021, Bristol-Myers Squibb voluntarily withdrew the HCC indication for nivolumab, following negative results of the CheckMate 459 trial and a 5-4 vote against continuing the accelerated approval.
On second thought ...
Citing data compiled by Nathan I. Cherny, MD, from Shaare Zedek Medical Center, Jerusalem, Dr. Gyawali noted that 58 of 161 FDA approvals from 2017 to 2021 of drugs for adult solid tumors were based on single-arm trials. Of the 58 drugs, 39 received accelerated approvals, and 19 received regular approvals; of the 39 that received accelerated approvals, 4 were subsequently withdrawn, 8 were converted to regular approvals, and the remainder continued as accelerated approvals.
Interestingly, the median response rate among all the drugs was 40%, and did not differ between the type of approval received, suggesting that response rates are not predictive of whether a drug will receive a conditional or full-fledged go-ahead.
What’s rare and safe?
The definition of a rare disease in the United States is one that affects fewer than 40,000 per year, and in Europe it’s an incidence rate of less than 6 per 100,000 population, Dr. Gyawali noted. But he argued that even non–small cell lung cancer, the most common form of cancer in the world, could be considered rare if it is broken down into subtypes that are treated according to specific mutations that may occur in a relatively small number of patients.
He also noted that a specific drug’s safety, one of the most important criteria for granting approval to a drug based on a single-arm trial, can be difficult to judge without adequate controls for comparison.
Cherry-picking patients
Winette van der Graaf, MD, president of the European Organization for the Research and Treatment of Cancer, who attended the session where Dr. Gyawali’s presentation was played, said in an interview that clinicians should cast a critical eye on how trials are designed and conducted, including patient selection and choice of endpoints.
“One of the most obvious things to be concerned about is that we’re still having patients with good performance status enrolled, mostly PS 0 or 1, so how representative are these clinical trials for the patients we see in front of us on a daily basis?” she said.
“The other question is radiological endpoints, which we focus on with OS and PFS are most important for patients, especially if you consider that if patients may have asymptomatic disease, and we are only treating them with potentially toxic medication, what are we doing for them? Median overall survival when you look at all of these trials is only 4 months, so we really need to take into account how we affect patients in clinical trials,” she added.
Dr. van der Graaf emphasized that clinical trial investigators need to more routinely incorporate quality of life measures and other patient-reported outcomes in clinical trial results to help regulators and clinicians in practice get a better sense of the true clinical benefit of a new drug.
Dr. Gyawali did not disclose a funding source for his presentation. He reported consulting fees from Vivio Health and research grants from the American Society of Clinical Oncology. Dr. van der Graaf reported no conflicts of interest.
PARIS – with results that should only be used, under certain conditions, for accelerated approvals that should then be followed by confirmatory studies.
In fact, many drugs approved over the last decade based solely on data from single-arm trials have been subsequently withdrawn when put through the rigors of a head-to-head randomized controlled trial, according to Bishal Gyawali, MD, PhD, from the department of oncology at Queen’s University, Kingston, Ont.
“Single-arm trials are not meant to provide confirmatory evidence sufficient for approval; However, that ship has sailed, and we have several drugs that are approved on the basis of single-arm trials, but we need to make sure that those approvals are accelerated or conditional approvals, not regular approval,” he said in a presentation included in a special session on drug approvals at the European Society for Medical Oncology Congress.
“We should not allow premature regular approval based on single-arm trials, because once a drug gets conditional approval, access is not an issue. Patients will have access to the drug anyway, but we should ensure that robust evidence follows, and long-term follow-up data are needed to develop confidence in the efficacy outcomes that are seen in single-arm trials,” he said.
In many cases, single-arm trials are large enough or of long enough duration that investigators could have reasonably performed a randomized controlled trial (RCT) in the first place, Dr. Gyawali added.
Why do single-arm trials?
The term “single-arm registration trial” is something of an oxymoron, he said, noting that the purpose of such trials should be whether to take the drug to a phase 3, randomized trial. But as authors of a 2019 study in JAMA Network Open showed, of a sample of phase 3 RCTs, 42% did not have a prior phase 2 trial, and 28% had a negative phase 2 trial. Single-arm trials may be acceptable for conditional drug approvals if all of the following conditions are met:
- A RCT is not possible because the disease is rare or randomization would be unethical.
- The safety of the drug is established and its potential benefits outweigh its risks.
- The drug is associated with a high and durable overall or objective response rate.
- The mechanism of action is supported by a strong scientific rationale, and if the drug may meet an unmet medical need.
Survival endpoints won’t do
Efficacy endpoints typically used in RCTs, such as progression-free survival (PFS) and overall survival (OS) can be misleading because they may be a result of the natural history of the disease and not the drug being tested, whereas ORRs are almost certainly reflective of the action of the drug itself, because spontaneous tumor regression is a rare phenomenon, Dr. Gyawali said.
He cautioned, however, that the ORR of placebo is not zero percent. For example in a 2018 study of sorafenib (Nexavar) versus placebo for advanced or refractory desmoid tumors, the ORR with the active drug was 33%, and the ORR for placebo was 20%.
It’s also open to question, he said, what constitutes an acceptably high ORR and duration of response, pointing to Food and Drug Administration accelerated approval of an indication for nivolumab (Opdivo) for treatment of patients with hepatocellular carcinoma (HCC) that had progressed on sorafenib. In the single-arm trial used as the basis for approval, the ORRs as assessed by an independent central review committee blinded to the results was 14.3%.
“So, nivolumab in hepatocellular cancer was approved on the basis of a response rate lower than that of placebo, albeit in a different tumor. But the point I’m trying to show here is we don’t have a good definition of what is a good response rate,” he said.
In July 2021, Bristol-Myers Squibb voluntarily withdrew the HCC indication for nivolumab, following negative results of the CheckMate 459 trial and a 5-4 vote against continuing the accelerated approval.
On second thought ...
Citing data compiled by Nathan I. Cherny, MD, from Shaare Zedek Medical Center, Jerusalem, Dr. Gyawali noted that 58 of 161 FDA approvals from 2017 to 2021 of drugs for adult solid tumors were based on single-arm trials. Of the 58 drugs, 39 received accelerated approvals, and 19 received regular approvals; of the 39 that received accelerated approvals, 4 were subsequently withdrawn, 8 were converted to regular approvals, and the remainder continued as accelerated approvals.
Interestingly, the median response rate among all the drugs was 40%, and did not differ between the type of approval received, suggesting that response rates are not predictive of whether a drug will receive a conditional or full-fledged go-ahead.
What’s rare and safe?
The definition of a rare disease in the United States is one that affects fewer than 40,000 per year, and in Europe it’s an incidence rate of less than 6 per 100,000 population, Dr. Gyawali noted. But he argued that even non–small cell lung cancer, the most common form of cancer in the world, could be considered rare if it is broken down into subtypes that are treated according to specific mutations that may occur in a relatively small number of patients.
He also noted that a specific drug’s safety, one of the most important criteria for granting approval to a drug based on a single-arm trial, can be difficult to judge without adequate controls for comparison.
Cherry-picking patients
Winette van der Graaf, MD, president of the European Organization for the Research and Treatment of Cancer, who attended the session where Dr. Gyawali’s presentation was played, said in an interview that clinicians should cast a critical eye on how trials are designed and conducted, including patient selection and choice of endpoints.
“One of the most obvious things to be concerned about is that we’re still having patients with good performance status enrolled, mostly PS 0 or 1, so how representative are these clinical trials for the patients we see in front of us on a daily basis?” she said.
“The other question is radiological endpoints, which we focus on with OS and PFS are most important for patients, especially if you consider that if patients may have asymptomatic disease, and we are only treating them with potentially toxic medication, what are we doing for them? Median overall survival when you look at all of these trials is only 4 months, so we really need to take into account how we affect patients in clinical trials,” she added.
Dr. van der Graaf emphasized that clinical trial investigators need to more routinely incorporate quality of life measures and other patient-reported outcomes in clinical trial results to help regulators and clinicians in practice get a better sense of the true clinical benefit of a new drug.
Dr. Gyawali did not disclose a funding source for his presentation. He reported consulting fees from Vivio Health and research grants from the American Society of Clinical Oncology. Dr. van der Graaf reported no conflicts of interest.
AT ESMO CONGRESS 2022
Risk factors for postoperative arm lymphedema in breast cancer
Key clinical point: Several preoperative and postoperative factors predict the risk for arm lymphedema in patients who undergo breast cancer (BC) surgery.
Major finding: Young age (<60 years; P < .001), high body mass index (P < .001), advanced preoperative T and N classifications (P ≤ .01), total mastectomy (P < .001), axillary dissection (P < .001), and collagen disease (P = .024) were the preoperative risk factors for lymphedema. Postoperative bleeding (P = .017), chemotherapy (P < .001), and radiotherapy (P < .001) were among the postoperative risk factors for lymphedema.
Study details: Findings are from a nationwide retrospective cohort study including 84,022 women who underwent BC surgery, of which 1547 patients received treatments for lymphedema.
Disclosures: This work was supported by the Ministry of Health, Labour and Welfare, Japan, and other sources. N Michihata declared serving as an employee at The University of Tokyo.
Source: Konishi T et al. Risk factors for arm lymphedema following breast cancer surgery: A Japanese nationwide database study of 84,022 patients. Breast Cancer. 2022 (Aug 23). Doi: 10.1007/s12282-022-01395-5.
Key clinical point: Several preoperative and postoperative factors predict the risk for arm lymphedema in patients who undergo breast cancer (BC) surgery.
Major finding: Young age (<60 years; P < .001), high body mass index (P < .001), advanced preoperative T and N classifications (P ≤ .01), total mastectomy (P < .001), axillary dissection (P < .001), and collagen disease (P = .024) were the preoperative risk factors for lymphedema. Postoperative bleeding (P = .017), chemotherapy (P < .001), and radiotherapy (P < .001) were among the postoperative risk factors for lymphedema.
Study details: Findings are from a nationwide retrospective cohort study including 84,022 women who underwent BC surgery, of which 1547 patients received treatments for lymphedema.
Disclosures: This work was supported by the Ministry of Health, Labour and Welfare, Japan, and other sources. N Michihata declared serving as an employee at The University of Tokyo.
Source: Konishi T et al. Risk factors for arm lymphedema following breast cancer surgery: A Japanese nationwide database study of 84,022 patients. Breast Cancer. 2022 (Aug 23). Doi: 10.1007/s12282-022-01395-5.
Key clinical point: Several preoperative and postoperative factors predict the risk for arm lymphedema in patients who undergo breast cancer (BC) surgery.
Major finding: Young age (<60 years; P < .001), high body mass index (P < .001), advanced preoperative T and N classifications (P ≤ .01), total mastectomy (P < .001), axillary dissection (P < .001), and collagen disease (P = .024) were the preoperative risk factors for lymphedema. Postoperative bleeding (P = .017), chemotherapy (P < .001), and radiotherapy (P < .001) were among the postoperative risk factors for lymphedema.
Study details: Findings are from a nationwide retrospective cohort study including 84,022 women who underwent BC surgery, of which 1547 patients received treatments for lymphedema.
Disclosures: This work was supported by the Ministry of Health, Labour and Welfare, Japan, and other sources. N Michihata declared serving as an employee at The University of Tokyo.
Source: Konishi T et al. Risk factors for arm lymphedema following breast cancer surgery: A Japanese nationwide database study of 84,022 patients. Breast Cancer. 2022 (Aug 23). Doi: 10.1007/s12282-022-01395-5.
LetCOH as effective as cCOH for fertility preservation in nonmetastatic BC
Key clinical point: Letrozole-associated controlled ovarian hyperstimulation (LetCOH) was as effective as conventional controlled ovarian hyperstimulation (cCOH) for fertility preservation (FP) and minimized the risk for supraphysiologic estrogen exposure; however, more patients in the LetCOH group relapsed.
Major finding: In the LetCOH vs cCOH group, estradiol peak at the ovulation trigger was lower, but oocyte maturation rates were significantly higher (P < .001), and the final number of mature oocytes collected was comparable (P = .281). Disease recurrence occurred in 17% and 7.2% of patients in the LetCOH and cCOH groups, respectively.
Study details: Findings are from a retrospective observational study including 97 patients with nonmetastatic breast cancer (BC) who were ≤ 40 years old and had undergone FP with LetCOH (n = 41) or cCOH (n = 56) before receiving chemotherapy.
Disclosures: This study did not receive any funding. I Demeestere declared receiving honoraria and support and serving as a consultant or advisor for several sources outside this work.
Source: Goldrat O et al. Efficacy and safety of controlled ovarian hyperstimulation with or without letrozole for fertility preservation in breast cancer patients: A multicenter retrospective study. Eur J Cancer. 2022;174:134-141 (Aug 20). Doi: 10.1016/j.ejca.2022.07.017
Key clinical point: Letrozole-associated controlled ovarian hyperstimulation (LetCOH) was as effective as conventional controlled ovarian hyperstimulation (cCOH) for fertility preservation (FP) and minimized the risk for supraphysiologic estrogen exposure; however, more patients in the LetCOH group relapsed.
Major finding: In the LetCOH vs cCOH group, estradiol peak at the ovulation trigger was lower, but oocyte maturation rates were significantly higher (P < .001), and the final number of mature oocytes collected was comparable (P = .281). Disease recurrence occurred in 17% and 7.2% of patients in the LetCOH and cCOH groups, respectively.
Study details: Findings are from a retrospective observational study including 97 patients with nonmetastatic breast cancer (BC) who were ≤ 40 years old and had undergone FP with LetCOH (n = 41) or cCOH (n = 56) before receiving chemotherapy.
Disclosures: This study did not receive any funding. I Demeestere declared receiving honoraria and support and serving as a consultant or advisor for several sources outside this work.
Source: Goldrat O et al. Efficacy and safety of controlled ovarian hyperstimulation with or without letrozole for fertility preservation in breast cancer patients: A multicenter retrospective study. Eur J Cancer. 2022;174:134-141 (Aug 20). Doi: 10.1016/j.ejca.2022.07.017
Key clinical point: Letrozole-associated controlled ovarian hyperstimulation (LetCOH) was as effective as conventional controlled ovarian hyperstimulation (cCOH) for fertility preservation (FP) and minimized the risk for supraphysiologic estrogen exposure; however, more patients in the LetCOH group relapsed.
Major finding: In the LetCOH vs cCOH group, estradiol peak at the ovulation trigger was lower, but oocyte maturation rates were significantly higher (P < .001), and the final number of mature oocytes collected was comparable (P = .281). Disease recurrence occurred in 17% and 7.2% of patients in the LetCOH and cCOH groups, respectively.
Study details: Findings are from a retrospective observational study including 97 patients with nonmetastatic breast cancer (BC) who were ≤ 40 years old and had undergone FP with LetCOH (n = 41) or cCOH (n = 56) before receiving chemotherapy.
Disclosures: This study did not receive any funding. I Demeestere declared receiving honoraria and support and serving as a consultant or advisor for several sources outside this work.
Source: Goldrat O et al. Efficacy and safety of controlled ovarian hyperstimulation with or without letrozole for fertility preservation in breast cancer patients: A multicenter retrospective study. Eur J Cancer. 2022;174:134-141 (Aug 20). Doi: 10.1016/j.ejca.2022.07.017
Fertility preservation safe in young women with BC
Key clinical point: Women who were diagnosed with breast cancer (BC) at a young age and underwent fertility preservation (FP) did not experience any increased risk for disease-specific mortality or relapse.
Major finding: Compared with women who did not undergo FP, disease-specific mortality was similar in women who underwent hormonal FP (adjusted hazard ratio [aHR] 0.59; 95% CI 0.32-1.09) and nonhormonal FP (aHR 0.51; 95% CI 0.20-1.29). Hormonal (aHR 0.81; 95% CI 0.49-1.37) and nonhormonal (aHR 0.75; 95% CI 0.35-1.62) FP were associated with similar relapse or death rates in a subcohort of 723 women with complete relapse information.
Study details: Findings are from an analysis of a population-based nationwide cohort study including 1275 women of reproductive age (18-44 years old) who were diagnosed with BC, of which 425 women received hormonal (n = 367) or nonhormonal (n = 58) FP treatment.
Disclosures: This study was supported by the Swedish Cancer Society and other sources. Prof. Bergh declared receiving grants and personal fees from several sources.
Source: Marklund A et al. Relapse rates and disease-specific mortality following procedures for fertility preservation at time of breast cancer diagnosis. JAMA Oncol. 2022 (Aug 25). Doi: 10.1001/jamaoncol.2022.3677
Key clinical point: Women who were diagnosed with breast cancer (BC) at a young age and underwent fertility preservation (FP) did not experience any increased risk for disease-specific mortality or relapse.
Major finding: Compared with women who did not undergo FP, disease-specific mortality was similar in women who underwent hormonal FP (adjusted hazard ratio [aHR] 0.59; 95% CI 0.32-1.09) and nonhormonal FP (aHR 0.51; 95% CI 0.20-1.29). Hormonal (aHR 0.81; 95% CI 0.49-1.37) and nonhormonal (aHR 0.75; 95% CI 0.35-1.62) FP were associated with similar relapse or death rates in a subcohort of 723 women with complete relapse information.
Study details: Findings are from an analysis of a population-based nationwide cohort study including 1275 women of reproductive age (18-44 years old) who were diagnosed with BC, of which 425 women received hormonal (n = 367) or nonhormonal (n = 58) FP treatment.
Disclosures: This study was supported by the Swedish Cancer Society and other sources. Prof. Bergh declared receiving grants and personal fees from several sources.
Source: Marklund A et al. Relapse rates and disease-specific mortality following procedures for fertility preservation at time of breast cancer diagnosis. JAMA Oncol. 2022 (Aug 25). Doi: 10.1001/jamaoncol.2022.3677
Key clinical point: Women who were diagnosed with breast cancer (BC) at a young age and underwent fertility preservation (FP) did not experience any increased risk for disease-specific mortality or relapse.
Major finding: Compared with women who did not undergo FP, disease-specific mortality was similar in women who underwent hormonal FP (adjusted hazard ratio [aHR] 0.59; 95% CI 0.32-1.09) and nonhormonal FP (aHR 0.51; 95% CI 0.20-1.29). Hormonal (aHR 0.81; 95% CI 0.49-1.37) and nonhormonal (aHR 0.75; 95% CI 0.35-1.62) FP were associated with similar relapse or death rates in a subcohort of 723 women with complete relapse information.
Study details: Findings are from an analysis of a population-based nationwide cohort study including 1275 women of reproductive age (18-44 years old) who were diagnosed with BC, of which 425 women received hormonal (n = 367) or nonhormonal (n = 58) FP treatment.
Disclosures: This study was supported by the Swedish Cancer Society and other sources. Prof. Bergh declared receiving grants and personal fees from several sources.
Source: Marklund A et al. Relapse rates and disease-specific mortality following procedures for fertility preservation at time of breast cancer diagnosis. JAMA Oncol. 2022 (Aug 25). Doi: 10.1001/jamaoncol.2022.3677