Diabetes

Individuals at increased risk for dementia because of family history can reduce that risk by adopting healthy lifestyle behaviors, data from more than 300,000 adults aged 50-73 years suggest.

Having a parent or sibling with dementia can increase a person’s risk of developing dementia themselves by nearly 75%, compared with someone with no first-degree family history of dementia, according to Angelique Brellenthin, PhD, of Iowa State University, Ames, and colleagues.

In a study presented at the Epidemiology and Prevention/Lifestyle and Cardiometabolic Health meeting sponsored by the American Heart Association, the researchers reviewed information for 302,239 men and women who were enrolled in the U.K. Biobank, a population-based study of more than 500,000 individuals in the United Kingdom, between 2006 and 2010.

The study participants had no evidence of dementia at baseline, and completed questionnaires about family history and lifestyle. The questions included details about six healthy lifestyle behaviors: eating a healthy diet, engaging in at least 150 minutes of moderate to vigorous physical activity per week, sleeping 6-9 hours each night, drinking alcohol in moderation, not smoking, and maintaining a body mass index below the obese level (less than 30 kg/m²).

The researchers identified 1,698 participants (0.6%) who developed dementia over an average follow-up period of 8 years. Those with a family history (first-degree relative) of dementia had a 70% increased risk of dementia, compared with those who had no such family history.

Overall, individuals who engaged in all six healthy behaviors reduced their risk of dementia by about half, compared with those who engaged in two or fewer healthy behaviors. Engaging in three healthy behaviors reduced the risk of dementia by 30%, compared with engaging in two or fewer healthy behaviors, and this association held after controlling not only for family history of dementia, but also for other dementia risk factors such as age, sex, race, and education level, as well as high blood pressure, high cholesterol, and the presence of type 2 diabetes.

Similarly, among participants with a family history of dementia, those who engaged in three healthy lifestyle behaviors showed a 25%-35% reduction in dementia risk, compared with those who engaged in two or fewer healthy behaviors.

The study findings were limited by several factors including the inability to prove that lifestyle can cause or prevent dementia, only to show an association, the researchers noted. Also, the findings were limited by the reliance on self-reports, rather than genetic data, to confirm familial dementia.

However, the findings were strengthened by the large sample size, and the results suggest that a healthy lifestyle can impact cognitive health, and support the value of encouraging healthy behaviors in general, and especially among individuals with a family history of dementia, they said.
 

Small changes may promote prevention

The study is important now because, as the population ages, many individuals have a family member who has had dementia, said lead author Dr. Brellenthin, in an interview. “It’s important to understand how lifestyle behaviors affect the risk of dementia when it runs in families,” she said.

Dr. Brellenthin said she was surprised by some of the findings. “It was surprising to see that the risk of dementia was reduced with just three healthy behaviors [but was further reduced as you added more behaviors] compared to two or fewer behaviors. However, it was not surprising to see that these same lifestyle behaviors that tend to be good for the heart and body are also good for the brain.”

The evidence that following just three healthy behaviors can reduce the risk of dementia by 25%-35% for individuals with a familial history of dementia has clinical implications, Dr. Brellenthin said. “Many people are already following some of these behaviors like not smoking, so it might be possible to focus on adding just one more behavior, like getting enough sleep, and going from there.”

Commenting on the study, AHA President Mitchell S. V. Elkind, MD, said that the study “tells us that, yes, family history is important [in determining the risk of dementia], and much of that may be driven by genetic factors, but some of that impact can be mitigated or decreased by engaging in those important behaviors that we know are good to maintain brain health.

“The tricky thing, of course, is getting people to engage in these behaviors. That’s where a lot of work in the future will be: changing people’s behavior to become more healthy, and figuring out exactly which behaviors may be the easiest to engage in and be most likely to have public health impact,” added Dr. Elkind, professor of neurology and epidemiology at Columbia University and attending neurologist at New York–Presbyterian/Columbia University Irving Medical Center, New York.

The study received no outside funding, but the was research was conducted using the U.K. Biobank resources. The researchers had no financial conflicts to disclose.

Individuals at increased risk for dementia because of family history can reduce that risk by adopting healthy lifestyle behaviors, data from more than 300,000 adults aged 50-73 years suggest.

Having a parent or sibling with dementia can increase a person’s risk of developing dementia themselves by nearly 75%, compared with someone with no first-degree family history of dementia, according to Angelique Brellenthin, PhD, of Iowa State University, Ames, and colleagues.

In a study presented at the Epidemiology and Prevention/Lifestyle and Cardiometabolic Health meeting sponsored by the American Heart Association, the researchers reviewed information for 302,239 men and women who were enrolled in the U.K. Biobank, a population-based study of more than 500,000 individuals in the United Kingdom, between 2006 and 2010.

The study participants had no evidence of dementia at baseline, and completed questionnaires about family history and lifestyle. The questions included details about six healthy lifestyle behaviors: eating a healthy diet, engaging in at least 150 minutes of moderate to vigorous physical activity per week, sleeping 6-9 hours each night, drinking alcohol in moderation, not smoking, and maintaining a body mass index below the obese level (less than 30 kg/m²).

The researchers identified 1,698 participants (0.6%) who developed dementia over an average follow-up period of 8 years. Those with a family history (first-degree relative) of dementia had a 70% increased risk of dementia, compared with those who had no such family history.

Overall, individuals who engaged in all six healthy behaviors reduced their risk of dementia by about half, compared with those who engaged in two or fewer healthy behaviors. Engaging in three healthy behaviors reduced the risk of dementia by 30%, compared with engaging in two or fewer healthy behaviors, and this association held after controlling not only for family history of dementia, but also for other dementia risk factors such as age, sex, race, and education level, as well as high blood pressure, high cholesterol, and the presence of type 2 diabetes.

Similarly, among participants with a family history of dementia, those who engaged in three healthy lifestyle behaviors showed a 25%-35% reduction in dementia risk, compared with those who engaged in two or fewer healthy behaviors.

The study findings were limited by several factors including the inability to prove that lifestyle can cause or prevent dementia, only to show an association, the researchers noted. Also, the findings were limited by the reliance on self-reports, rather than genetic data, to confirm familial dementia.

However, the findings were strengthened by the large sample size, and the results suggest that a healthy lifestyle can impact cognitive health, and support the value of encouraging healthy behaviors in general, and especially among individuals with a family history of dementia, they said.
 

Small changes may promote prevention

The study is important now because, as the population ages, many individuals have a family member who has had dementia, said lead author Dr. Brellenthin, in an interview. “It’s important to understand how lifestyle behaviors affect the risk of dementia when it runs in families,” she said.

Dr. Brellenthin said she was surprised by some of the findings. “It was surprising to see that the risk of dementia was reduced with just three healthy behaviors [but was further reduced as you added more behaviors] compared to two or fewer behaviors. However, it was not surprising to see that these same lifestyle behaviors that tend to be good for the heart and body are also good for the brain.”

The evidence that following just three healthy behaviors can reduce the risk of dementia by 25%-35% for individuals with a familial history of dementia has clinical implications, Dr. Brellenthin said. “Many people are already following some of these behaviors like not smoking, so it might be possible to focus on adding just one more behavior, like getting enough sleep, and going from there.”

Commenting on the study, AHA President Mitchell S. V. Elkind, MD, said that the study “tells us that, yes, family history is important [in determining the risk of dementia], and much of that may be driven by genetic factors, but some of that impact can be mitigated or decreased by engaging in those important behaviors that we know are good to maintain brain health.

“The tricky thing, of course, is getting people to engage in these behaviors. That’s where a lot of work in the future will be: changing people’s behavior to become more healthy, and figuring out exactly which behaviors may be the easiest to engage in and be most likely to have public health impact,” added Dr. Elkind, professor of neurology and epidemiology at Columbia University and attending neurologist at New York–Presbyterian/Columbia University Irving Medical Center, New York.

The study received no outside funding, but the was research was conducted using the U.K. Biobank resources. The researchers had no financial conflicts to disclose.

Individuals at increased risk for dementia because of family history can reduce that risk by adopting healthy lifestyle behaviors, data from more than 300,000 adults aged 50-73 years suggest.

Having a parent or sibling with dementia can increase a person’s risk of developing dementia themselves by nearly 75%, compared with someone with no first-degree family history of dementia, according to Angelique Brellenthin, PhD, of Iowa State University, Ames, and colleagues.

In a study presented at the Epidemiology and Prevention/Lifestyle and Cardiometabolic Health meeting sponsored by the American Heart Association, the researchers reviewed information for 302,239 men and women who were enrolled in the U.K. Biobank, a population-based study of more than 500,000 individuals in the United Kingdom, between 2006 and 2010.

The study participants had no evidence of dementia at baseline, and completed questionnaires about family history and lifestyle. The questions included details about six healthy lifestyle behaviors: eating a healthy diet, engaging in at least 150 minutes of moderate to vigorous physical activity per week, sleeping 6-9 hours each night, drinking alcohol in moderation, not smoking, and maintaining a body mass index below the obese level (less than 30 kg/m²).

The researchers identified 1,698 participants (0.6%) who developed dementia over an average follow-up period of 8 years. Those with a family history (first-degree relative) of dementia had a 70% increased risk of dementia, compared with those who had no such family history.

Overall, individuals who engaged in all six healthy behaviors reduced their risk of dementia by about half, compared with those who engaged in two or fewer healthy behaviors. Engaging in three healthy behaviors reduced the risk of dementia by 30%, compared with engaging in two or fewer healthy behaviors, and this association held after controlling not only for family history of dementia, but also for other dementia risk factors such as age, sex, race, and education level, as well as high blood pressure, high cholesterol, and the presence of type 2 diabetes.

Similarly, among participants with a family history of dementia, those who engaged in three healthy lifestyle behaviors showed a 25%-35% reduction in dementia risk, compared with those who engaged in two or fewer healthy behaviors.

The study findings were limited by several factors including the inability to prove that lifestyle can cause or prevent dementia, only to show an association, the researchers noted. Also, the findings were limited by the reliance on self-reports, rather than genetic data, to confirm familial dementia.

However, the findings were strengthened by the large sample size, and the results suggest that a healthy lifestyle can impact cognitive health, and support the value of encouraging healthy behaviors in general, and especially among individuals with a family history of dementia, they said.
 

Small changes may promote prevention

The study is important now because, as the population ages, many individuals have a family member who has had dementia, said lead author Dr. Brellenthin, in an interview. “It’s important to understand how lifestyle behaviors affect the risk of dementia when it runs in families,” she said.

Dr. Brellenthin said she was surprised by some of the findings. “It was surprising to see that the risk of dementia was reduced with just three healthy behaviors [but was further reduced as you added more behaviors] compared to two or fewer behaviors. However, it was not surprising to see that these same lifestyle behaviors that tend to be good for the heart and body are also good for the brain.”

The evidence that following just three healthy behaviors can reduce the risk of dementia by 25%-35% for individuals with a familial history of dementia has clinical implications, Dr. Brellenthin said. “Many people are already following some of these behaviors like not smoking, so it might be possible to focus on adding just one more behavior, like getting enough sleep, and going from there.”

Commenting on the study, AHA President Mitchell S. V. Elkind, MD, said that the study “tells us that, yes, family history is important [in determining the risk of dementia], and much of that may be driven by genetic factors, but some of that impact can be mitigated or decreased by engaging in those important behaviors that we know are good to maintain brain health.

“The tricky thing, of course, is getting people to engage in these behaviors. That’s where a lot of work in the future will be: changing people’s behavior to become more healthy, and figuring out exactly which behaviors may be the easiest to engage in and be most likely to have public health impact,” added Dr. Elkind, professor of neurology and epidemiology at Columbia University and attending neurologist at New York–Presbyterian/Columbia University Irving Medical Center, New York.

The study received no outside funding, but the was research was conducted using the U.K. Biobank resources. The researchers had no financial conflicts to disclose.

Older people with prediabetes who followed a diet rich in sardines for 1 year show significant reductions in risk of developing type 2 diabetes compared with those placed on a similarly healthy diet but without the sardines, results from a new randomized trial show. 

“A 1-year, sardine-enriched type 2 diabetes-preventive diet in an elderly population with prediabetes exerts a greater protective effect against developing type 2 diabetes and cardiovascular events, by improving anthropometric parameters, blood chemistry profile, lipid composition in erythrocytes membranes, and metabolomics data,” report the authors in research published in Clinical Nutrition by Diana Díaz-Rizzolo, PhD, of the Hospital Clinic of Barcelona, Spain, and colleagues.

While cardiovascular and other health benefits of unsaturated fats in oily fish are well-established and are a key component in diets such as the highly recommended Mediterranean diet, the authors note that the consumption of sardines for the prevention of type 2 diabetes has not previously been studied.

In addition to being rich in healthy omega-3 fatty acids, sardines have high concentrations of taurine – approximately 147 mg per 100 g serving – which, depending on the sardine species, is believed to have hypoglycemic, antioxidant, and anti-inflammatory benefits, the authors note.
 

Participants advised to consume the whole sardine, bones and all

To evaluate the effects, researchers enrolled 152 patients aged 65 and older who had been diagnosed with prediabetes (blood glucose levels between 100-124 mg/dL) and placed them all on a nutritional program to reduce the risk of diabetes for 1 year.

In addition, about half (n = 75) were also instructed to consume 200 g of canned sardines in olive oil per week, in 100 g servings consumed twice per week.

Those participants were recommended to consume the entire sardine, without removal of bones, due to their rich content of calcium and vitamin D. They were also provided with recipes that used canned sardines.

At 1 year, the percentage of participants classified as being at a very high risk of type 2 diabetes, assessed by the Finnish Diabetes Risk Score (FINDRISC), compared with baseline, had declined to a much greater degree in the sardine consumption group (37% at baseline vs. 8% at 1 year) compared with those in the control group, who only consumed the nutritional diet (27% vs. 22%) (P = .021).

In addition, those in the sardine group had greater increases in healthy HDL cholesterol and the glucose-regulating protein hormone adiponectin, with decreases in triglycerides compared with the nonsardine group (all P < .005).

Furthermore, the sardine consumption group had a greater decrease in insulin resistance, assessed by Homeostatic Model Assessment for Insulin Resistance (HOMA-IR; P = .032).
 

Sardines are cheap and reduce blood pressure too

“Not only are sardines reasonably priced and easy to find, but they are safe and help to prevent the onset of type 2 diabetes,” said Dr. Díaz-Rizzolo in a press statement.

Those in the sardine group also showed significant decreases in systolic blood pressure (P = .014) and diastolic blood pressure (P = .020) versus baseline, while no significant changes were observed in the control group. The authors suggest that sardines’ rich taurine concentrations could play a role in those effects.

“Previously, only lean fish consumption had demonstrated an improvement in blood pressure, not fatty fish consumption, perhaps because the species studied excluded those with a higher taurine content such as sardines,” they speculate.

In addition to showing improvements in levels of taurine, those in the sardine group also showed increases in nutrients that have been linked to health benefits, including omega-3 EPA and DHA, vitamin D, and fluorine (all P < .05).

The authors note that the increases could be attributed to sardines’ rich concentration of those nutrients, as well as to the olive oil that is present in the sardine can.
 

Some benefits seen in both groups

The patients in the study were a mean age of 71 and had been in a prediabetic state for an average of 4.8 years at the beginning of the study. They were 55% male and there were no other significant differences in characteristics between the groups.

While the conversion from being prediabetic to type 2 diabetes in the adult population has been reported to be about 10.6%, and the risk has been observed to be even higher in the 65 and older population, rates were lower than that in both groups.

“At the end of our 1-year study, we observed a [rate of] new-onset type 2 diabetes of 2.7% and 5.2% in the sardine group and control group, respectively,” the authors note. They add the differences were not statistically significant.

Both the sardine consumption and control groups showed significant reductions in A1c versus baseline (P = .011 and P = .010, respectively), as well as significant reductions in glucose fasting concentrations (P = .020 and P = .040, respectively).

And while the sardine group showed greater improvements in HDL versus the control group (P = .045), only the control group showed a significant decrease in total cholesterol versus baseline (P = .032).

Both groups showed improvements in the management of body weight, body mass index, and waist and hip circumference, in addition to improvement in body composition – despite no physical activity components in the programs, the authors note.

“This is probably because both groups followed the same base type 2 diabetes-preventive diet, with the one exception of sardine supplementation, and, although they did not modify their physical activity, both groups reduced their daily caloric intake through food,” the authors note.

The possibility of reducing diabetes risk through dietary changes as opposed to weight loss is especially important in the older population, the authors note, as some studies suggest a link between weight loss in the elderly and an increased risk of mortality.

In a second phase of the study, the researchers say they are evaluating the effect of sardines on the intestinal microbiota, “since it affects the regulation of many biological processes, and we need to understand if they have played a part in this protective effect against type 2 diabetes,” Dr. Díaz-Rizzolo concluded.

The study was funded by RecerCaixa 2013. The authors report that “no industry sponsorship was received for this work that could have influenced its outcome.”

A version of this article first appeared on Medscape.com.

Older people with prediabetes who followed a diet rich in sardines for 1 year show significant reductions in risk of developing type 2 diabetes compared with those placed on a similarly healthy diet but without the sardines, results from a new randomized trial show. 

“A 1-year, sardine-enriched type 2 diabetes-preventive diet in an elderly population with prediabetes exerts a greater protective effect against developing type 2 diabetes and cardiovascular events, by improving anthropometric parameters, blood chemistry profile, lipid composition in erythrocytes membranes, and metabolomics data,” report the authors in research published in Clinical Nutrition by Diana Díaz-Rizzolo, PhD, of the Hospital Clinic of Barcelona, Spain, and colleagues.

While cardiovascular and other health benefits of unsaturated fats in oily fish are well-established and are a key component in diets such as the highly recommended Mediterranean diet, the authors note that the consumption of sardines for the prevention of type 2 diabetes has not previously been studied.

In addition to being rich in healthy omega-3 fatty acids, sardines have high concentrations of taurine – approximately 147 mg per 100 g serving – which, depending on the sardine species, is believed to have hypoglycemic, antioxidant, and anti-inflammatory benefits, the authors note.
 

Participants advised to consume the whole sardine, bones and all

To evaluate the effects, researchers enrolled 152 patients aged 65 and older who had been diagnosed with prediabetes (blood glucose levels between 100-124 mg/dL) and placed them all on a nutritional program to reduce the risk of diabetes for 1 year.

In addition, about half (n = 75) were also instructed to consume 200 g of canned sardines in olive oil per week, in 100 g servings consumed twice per week.

Those participants were recommended to consume the entire sardine, without removal of bones, due to their rich content of calcium and vitamin D. They were also provided with recipes that used canned sardines.

At 1 year, the percentage of participants classified as being at a very high risk of type 2 diabetes, assessed by the Finnish Diabetes Risk Score (FINDRISC), compared with baseline, had declined to a much greater degree in the sardine consumption group (37% at baseline vs. 8% at 1 year) compared with those in the control group, who only consumed the nutritional diet (27% vs. 22%) (P = .021).

In addition, those in the sardine group had greater increases in healthy HDL cholesterol and the glucose-regulating protein hormone adiponectin, with decreases in triglycerides compared with the nonsardine group (all P < .005).

Furthermore, the sardine consumption group had a greater decrease in insulin resistance, assessed by Homeostatic Model Assessment for Insulin Resistance (HOMA-IR; P = .032).
 

Sardines are cheap and reduce blood pressure too

“Not only are sardines reasonably priced and easy to find, but they are safe and help to prevent the onset of type 2 diabetes,” said Dr. Díaz-Rizzolo in a press statement.

Those in the sardine group also showed significant decreases in systolic blood pressure (P = .014) and diastolic blood pressure (P = .020) versus baseline, while no significant changes were observed in the control group. The authors suggest that sardines’ rich taurine concentrations could play a role in those effects.

“Previously, only lean fish consumption had demonstrated an improvement in blood pressure, not fatty fish consumption, perhaps because the species studied excluded those with a higher taurine content such as sardines,” they speculate.

In addition to showing improvements in levels of taurine, those in the sardine group also showed increases in nutrients that have been linked to health benefits, including omega-3 EPA and DHA, vitamin D, and fluorine (all P < .05).

The authors note that the increases could be attributed to sardines’ rich concentration of those nutrients, as well as to the olive oil that is present in the sardine can.
 

Some benefits seen in both groups

The patients in the study were a mean age of 71 and had been in a prediabetic state for an average of 4.8 years at the beginning of the study. They were 55% male and there were no other significant differences in characteristics between the groups.

While the conversion from being prediabetic to type 2 diabetes in the adult population has been reported to be about 10.6%, and the risk has been observed to be even higher in the 65 and older population, rates were lower than that in both groups.

“At the end of our 1-year study, we observed a [rate of] new-onset type 2 diabetes of 2.7% and 5.2% in the sardine group and control group, respectively,” the authors note. They add the differences were not statistically significant.

Both the sardine consumption and control groups showed significant reductions in A1c versus baseline (P = .011 and P = .010, respectively), as well as significant reductions in glucose fasting concentrations (P = .020 and P = .040, respectively).

And while the sardine group showed greater improvements in HDL versus the control group (P = .045), only the control group showed a significant decrease in total cholesterol versus baseline (P = .032).

Both groups showed improvements in the management of body weight, body mass index, and waist and hip circumference, in addition to improvement in body composition – despite no physical activity components in the programs, the authors note.

“This is probably because both groups followed the same base type 2 diabetes-preventive diet, with the one exception of sardine supplementation, and, although they did not modify their physical activity, both groups reduced their daily caloric intake through food,” the authors note.

The possibility of reducing diabetes risk through dietary changes as opposed to weight loss is especially important in the older population, the authors note, as some studies suggest a link between weight loss in the elderly and an increased risk of mortality.

In a second phase of the study, the researchers say they are evaluating the effect of sardines on the intestinal microbiota, “since it affects the regulation of many biological processes, and we need to understand if they have played a part in this protective effect against type 2 diabetes,” Dr. Díaz-Rizzolo concluded.

The study was funded by RecerCaixa 2013. The authors report that “no industry sponsorship was received for this work that could have influenced its outcome.”

A version of this article first appeared on Medscape.com.

Older people with prediabetes who followed a diet rich in sardines for 1 year show significant reductions in risk of developing type 2 diabetes compared with those placed on a similarly healthy diet but without the sardines, results from a new randomized trial show. 

“A 1-year, sardine-enriched type 2 diabetes-preventive diet in an elderly population with prediabetes exerts a greater protective effect against developing type 2 diabetes and cardiovascular events, by improving anthropometric parameters, blood chemistry profile, lipid composition in erythrocytes membranes, and metabolomics data,” report the authors in research published in Clinical Nutrition by Diana Díaz-Rizzolo, PhD, of the Hospital Clinic of Barcelona, Spain, and colleagues.

While cardiovascular and other health benefits of unsaturated fats in oily fish are well-established and are a key component in diets such as the highly recommended Mediterranean diet, the authors note that the consumption of sardines for the prevention of type 2 diabetes has not previously been studied.

In addition to being rich in healthy omega-3 fatty acids, sardines have high concentrations of taurine – approximately 147 mg per 100 g serving – which, depending on the sardine species, is believed to have hypoglycemic, antioxidant, and anti-inflammatory benefits, the authors note.
 

Participants advised to consume the whole sardine, bones and all

To evaluate the effects, researchers enrolled 152 patients aged 65 and older who had been diagnosed with prediabetes (blood glucose levels between 100-124 mg/dL) and placed them all on a nutritional program to reduce the risk of diabetes for 1 year.

In addition, about half (n = 75) were also instructed to consume 200 g of canned sardines in olive oil per week, in 100 g servings consumed twice per week.

Those participants were recommended to consume the entire sardine, without removal of bones, due to their rich content of calcium and vitamin D. They were also provided with recipes that used canned sardines.

At 1 year, the percentage of participants classified as being at a very high risk of type 2 diabetes, assessed by the Finnish Diabetes Risk Score (FINDRISC), compared with baseline, had declined to a much greater degree in the sardine consumption group (37% at baseline vs. 8% at 1 year) compared with those in the control group, who only consumed the nutritional diet (27% vs. 22%) (P = .021).

In addition, those in the sardine group had greater increases in healthy HDL cholesterol and the glucose-regulating protein hormone adiponectin, with decreases in triglycerides compared with the nonsardine group (all P < .005).

Furthermore, the sardine consumption group had a greater decrease in insulin resistance, assessed by Homeostatic Model Assessment for Insulin Resistance (HOMA-IR; P = .032).
 

Sardines are cheap and reduce blood pressure too

“Not only are sardines reasonably priced and easy to find, but they are safe and help to prevent the onset of type 2 diabetes,” said Dr. Díaz-Rizzolo in a press statement.

Those in the sardine group also showed significant decreases in systolic blood pressure (P = .014) and diastolic blood pressure (P = .020) versus baseline, while no significant changes were observed in the control group. The authors suggest that sardines’ rich taurine concentrations could play a role in those effects.

“Previously, only lean fish consumption had demonstrated an improvement in blood pressure, not fatty fish consumption, perhaps because the species studied excluded those with a higher taurine content such as sardines,” they speculate.

In addition to showing improvements in levels of taurine, those in the sardine group also showed increases in nutrients that have been linked to health benefits, including omega-3 EPA and DHA, vitamin D, and fluorine (all P < .05).

The authors note that the increases could be attributed to sardines’ rich concentration of those nutrients, as well as to the olive oil that is present in the sardine can.
 

Some benefits seen in both groups

The patients in the study were a mean age of 71 and had been in a prediabetic state for an average of 4.8 years at the beginning of the study. They were 55% male and there were no other significant differences in characteristics between the groups.

While the conversion from being prediabetic to type 2 diabetes in the adult population has been reported to be about 10.6%, and the risk has been observed to be even higher in the 65 and older population, rates were lower than that in both groups.

“At the end of our 1-year study, we observed a [rate of] new-onset type 2 diabetes of 2.7% and 5.2% in the sardine group and control group, respectively,” the authors note. They add the differences were not statistically significant.

Both the sardine consumption and control groups showed significant reductions in A1c versus baseline (P = .011 and P = .010, respectively), as well as significant reductions in glucose fasting concentrations (P = .020 and P = .040, respectively).

And while the sardine group showed greater improvements in HDL versus the control group (P = .045), only the control group showed a significant decrease in total cholesterol versus baseline (P = .032).

Both groups showed improvements in the management of body weight, body mass index, and waist and hip circumference, in addition to improvement in body composition – despite no physical activity components in the programs, the authors note.

“This is probably because both groups followed the same base type 2 diabetes-preventive diet, with the one exception of sardine supplementation, and, although they did not modify their physical activity, both groups reduced their daily caloric intake through food,” the authors note.

The possibility of reducing diabetes risk through dietary changes as opposed to weight loss is especially important in the older population, the authors note, as some studies suggest a link between weight loss in the elderly and an increased risk of mortality.

In a second phase of the study, the researchers say they are evaluating the effect of sardines on the intestinal microbiota, “since it affects the regulation of many biological processes, and we need to understand if they have played a part in this protective effect against type 2 diabetes,” Dr. Díaz-Rizzolo concluded.

The study was funded by RecerCaixa 2013. The authors report that “no industry sponsorship was received for this work that could have influenced its outcome.”

A version of this article first appeared on Medscape.com.

Evidence summary

No difference in overall hypoglycemia risk between glargine and NPH

A 2015 systematic review and meta-analysis of 28 RCTs compared efficacy and safety outcomes for insulin glargine, NPH insulin, premixed insulin preparations, and insulin detemir in 12,669 adults with type 2 ­diabetes (T2D) who were also taking an oral antidiabetic drug (OAD).¹ In the comparison of glargine to NPH, there was no difference in risk for hypoglycemia (5 trials; N not provided; risk ratio [RR] = 0.92; 0.84-1.001).

Symptomatic hypoglycemia (6 RCTs; RR = 0.89; 0.83-0.96) and nocturnal hypoglycemia (6 RCTs; RR = 0.63; 0.51-0.77) occurred significantly less frequently in those treated with glargine and an OAD compared to NPH and an OAD. The risk for severe hypoglycemia was not different between regimens (5 RCTs; RR = 0.76; 0.47-1.23). Weight gain was also similar (6 RCTs; weighted mean difference [WMD] = 0.36 kg [–0.12 to 0.84]). This review was limited by the fact that many of the trials were of moderate quality, the majority were funded by pharmaceutical companies, fasting glucose goals varied between trials, and some trials had a short duration (6 months).

There may be some advantages of glargine over NPH

A 2008 meta-analysis of 12 RCTs (5 of which were not included in the 2015 review) with 4385 patients with T2D compared fasting plasma glucose (FPG), A1C, hypoglycemia, and body weight for patients treated with NPH vs with glargine.² Researchers found a significant difference in patient-reported hypoglycemia (10 trials; N not provided; 59% vs 53%; P < .001), symptomatic hypoglycemia (6 trials; 51% vs 43%; P < .0001), and nocturnal hypoglycemia (8 trials; 33% vs 19%; P < .001), favoring glargine over NPH. However, there was no difference between these 2 groups in confirmed hypoglycemia (2 trials; 10% vs 6.3%; P = .11) or severe hypoglycemia (7 trials; 2.4% vs 1.4%; P = .07). Of note, there was no difference between groups in FPG or A1C and a smaller weight gain in the NPH group (6 trials; WMD = 0.33 kg; 95% CI, –0.61 to –0.06). This review did not assess potential biases in the included trials.

Other results indicate a significant benefit from glargine

A 2014 RCT (published after the systematic review search date) compared hypoglycemia risk between NPH and glargine in 1017 adults ages 30 to 70 years who’d had T2D for at least 1 year.³ Patients were randomized to receive an OAD paired with either once-daily glargine or twice-daily NPH. Insulin doses were titrated over the first 3 years of the study to achieve standard glycemic control (described as FPG < 120 mg/dL; this goal was changed to < 100 mg/dL after the first year).

Over 5 years, once-daily glargine resulted in a significantly lower risk for all symptomatic hypoglycemia (odds ratio [OR] = 0.71; 95% CI, 0.52-0.98) and for any severe event (OR = 0.62; 95% CI, 0.41-0.95) compared to NPH. Using a logistic regression model, the authors predicted that if 25 patients were treated with NPH instead of glargine, 1 additional patient would experience at least 1 severe hypoglycemic event. This trial was funded by a pharmaceutical company.

Hypoglycemia requiring hospital care was similar for basal insulin and NPH

A 2018 retrospective observational study (N = 25,489) analyzed the association between the initiation of basal insulin analogs vs NPH with hypoglycemia-related ED visits or hospital admissions.⁴ Adults older than 19 years with clinically recognized diabetes were identified using electronic medical records; those included in the analysis had newly initiated basal insulin therapy during the prior 12 months. Data was gathered via chart review.

The difference in ED visits or hospital admissions was not different between groups (mean difference = 3.1 events per 100 person-years; 95% CI, –1.5 to 7.7). Among 4428 patients matched by propensity score, there was again no difference for hypoglycemia-related ED visits or hospital admissions with insulin analog use (adjusted hazard ratio = 1.16; 95% CI, 0.71-1.78).

Editor’s takeaway

Meta-analysis of large RCTs shows the glargine insulin adverse effects profile, specifically nonsevere hypoglycemia, to be inconsistently better than NPH. These small differences, plus once-daily dosing, may encourage prescribing of analog basal insulin, but price and the need for more than once-daily dosing remain worthy considerations.

Evidence summary

No difference in overall hypoglycemia risk between glargine and NPH

A 2015 systematic review and meta-analysis of 28 RCTs compared efficacy and safety outcomes for insulin glargine, NPH insulin, premixed insulin preparations, and insulin detemir in 12,669 adults with type 2 ­diabetes (T2D) who were also taking an oral antidiabetic drug (OAD).¹ In the comparison of glargine to NPH, there was no difference in risk for hypoglycemia (5 trials; N not provided; risk ratio [RR] = 0.92; 0.84-1.001).

Symptomatic hypoglycemia (6 RCTs; RR = 0.89; 0.83-0.96) and nocturnal hypoglycemia (6 RCTs; RR = 0.63; 0.51-0.77) occurred significantly less frequently in those treated with glargine and an OAD compared to NPH and an OAD. The risk for severe hypoglycemia was not different between regimens (5 RCTs; RR = 0.76; 0.47-1.23). Weight gain was also similar (6 RCTs; weighted mean difference [WMD] = 0.36 kg [–0.12 to 0.84]). This review was limited by the fact that many of the trials were of moderate quality, the majority were funded by pharmaceutical companies, fasting glucose goals varied between trials, and some trials had a short duration (6 months).

There may be some advantages of glargine over NPH

A 2008 meta-analysis of 12 RCTs (5 of which were not included in the 2015 review) with 4385 patients with T2D compared fasting plasma glucose (FPG), A1C, hypoglycemia, and body weight for patients treated with NPH vs with glargine.² Researchers found a significant difference in patient-reported hypoglycemia (10 trials; N not provided; 59% vs 53%; P < .001), symptomatic hypoglycemia (6 trials; 51% vs 43%; P < .0001), and nocturnal hypoglycemia (8 trials; 33% vs 19%; P < .001), favoring glargine over NPH. However, there was no difference between these 2 groups in confirmed hypoglycemia (2 trials; 10% vs 6.3%; P = .11) or severe hypoglycemia (7 trials; 2.4% vs 1.4%; P = .07). Of note, there was no difference between groups in FPG or A1C and a smaller weight gain in the NPH group (6 trials; WMD = 0.33 kg; 95% CI, –0.61 to –0.06). This review did not assess potential biases in the included trials.

Other results indicate a significant benefit from glargine

A 2014 RCT (published after the systematic review search date) compared hypoglycemia risk between NPH and glargine in 1017 adults ages 30 to 70 years who’d had T2D for at least 1 year.³ Patients were randomized to receive an OAD paired with either once-daily glargine or twice-daily NPH. Insulin doses were titrated over the first 3 years of the study to achieve standard glycemic control (described as FPG < 120 mg/dL; this goal was changed to < 100 mg/dL after the first year).

Over 5 years, once-daily glargine resulted in a significantly lower risk for all symptomatic hypoglycemia (odds ratio [OR] = 0.71; 95% CI, 0.52-0.98) and for any severe event (OR = 0.62; 95% CI, 0.41-0.95) compared to NPH. Using a logistic regression model, the authors predicted that if 25 patients were treated with NPH instead of glargine, 1 additional patient would experience at least 1 severe hypoglycemic event. This trial was funded by a pharmaceutical company.

Hypoglycemia requiring hospital care was similar for basal insulin and NPH

A 2018 retrospective observational study (N = 25,489) analyzed the association between the initiation of basal insulin analogs vs NPH with hypoglycemia-related ED visits or hospital admissions.⁴ Adults older than 19 years with clinically recognized diabetes were identified using electronic medical records; those included in the analysis had newly initiated basal insulin therapy during the prior 12 months. Data was gathered via chart review.

The difference in ED visits or hospital admissions was not different between groups (mean difference = 3.1 events per 100 person-years; 95% CI, –1.5 to 7.7). Among 4428 patients matched by propensity score, there was again no difference for hypoglycemia-related ED visits or hospital admissions with insulin analog use (adjusted hazard ratio = 1.16; 95% CI, 0.71-1.78).

Editor’s takeaway

Meta-analysis of large RCTs shows the glargine insulin adverse effects profile, specifically nonsevere hypoglycemia, to be inconsistently better than NPH. These small differences, plus once-daily dosing, may encourage prescribing of analog basal insulin, but price and the need for more than once-daily dosing remain worthy considerations.

Evidence summary

No difference in overall hypoglycemia risk between glargine and NPH

A 2015 systematic review and meta-analysis of 28 RCTs compared efficacy and safety outcomes for insulin glargine, NPH insulin, premixed insulin preparations, and insulin detemir in 12,669 adults with type 2 ­diabetes (T2D) who were also taking an oral antidiabetic drug (OAD).¹ In the comparison of glargine to NPH, there was no difference in risk for hypoglycemia (5 trials; N not provided; risk ratio [RR] = 0.92; 0.84-1.001).

Symptomatic hypoglycemia (6 RCTs; RR = 0.89; 0.83-0.96) and nocturnal hypoglycemia (6 RCTs; RR = 0.63; 0.51-0.77) occurred significantly less frequently in those treated with glargine and an OAD compared to NPH and an OAD. The risk for severe hypoglycemia was not different between regimens (5 RCTs; RR = 0.76; 0.47-1.23). Weight gain was also similar (6 RCTs; weighted mean difference [WMD] = 0.36 kg [–0.12 to 0.84]). This review was limited by the fact that many of the trials were of moderate quality, the majority were funded by pharmaceutical companies, fasting glucose goals varied between trials, and some trials had a short duration (6 months).

There may be some advantages of glargine over NPH

A 2008 meta-analysis of 12 RCTs (5 of which were not included in the 2015 review) with 4385 patients with T2D compared fasting plasma glucose (FPG), A1C, hypoglycemia, and body weight for patients treated with NPH vs with glargine.² Researchers found a significant difference in patient-reported hypoglycemia (10 trials; N not provided; 59% vs 53%; P < .001), symptomatic hypoglycemia (6 trials; 51% vs 43%; P < .0001), and nocturnal hypoglycemia (8 trials; 33% vs 19%; P < .001), favoring glargine over NPH. However, there was no difference between these 2 groups in confirmed hypoglycemia (2 trials; 10% vs 6.3%; P = .11) or severe hypoglycemia (7 trials; 2.4% vs 1.4%; P = .07). Of note, there was no difference between groups in FPG or A1C and a smaller weight gain in the NPH group (6 trials; WMD = 0.33 kg; 95% CI, –0.61 to –0.06). This review did not assess potential biases in the included trials.

Other results indicate a significant benefit from glargine

A 2014 RCT (published after the systematic review search date) compared hypoglycemia risk between NPH and glargine in 1017 adults ages 30 to 70 years who’d had T2D for at least 1 year.³ Patients were randomized to receive an OAD paired with either once-daily glargine or twice-daily NPH. Insulin doses were titrated over the first 3 years of the study to achieve standard glycemic control (described as FPG < 120 mg/dL; this goal was changed to < 100 mg/dL after the first year).

Over 5 years, once-daily glargine resulted in a significantly lower risk for all symptomatic hypoglycemia (odds ratio [OR] = 0.71; 95% CI, 0.52-0.98) and for any severe event (OR = 0.62; 95% CI, 0.41-0.95) compared to NPH. Using a logistic regression model, the authors predicted that if 25 patients were treated with NPH instead of glargine, 1 additional patient would experience at least 1 severe hypoglycemic event. This trial was funded by a pharmaceutical company.

Hypoglycemia requiring hospital care was similar for basal insulin and NPH

A 2018 retrospective observational study (N = 25,489) analyzed the association between the initiation of basal insulin analogs vs NPH with hypoglycemia-related ED visits or hospital admissions.⁴ Adults older than 19 years with clinically recognized diabetes were identified using electronic medical records; those included in the analysis had newly initiated basal insulin therapy during the prior 12 months. Data was gathered via chart review.

The difference in ED visits or hospital admissions was not different between groups (mean difference = 3.1 events per 100 person-years; 95% CI, –1.5 to 7.7). Among 4428 patients matched by propensity score, there was again no difference for hypoglycemia-related ED visits or hospital admissions with insulin analog use (adjusted hazard ratio = 1.16; 95% CI, 0.71-1.78).

Editor’s takeaway

Meta-analysis of large RCTs shows the glargine insulin adverse effects profile, specifically nonsevere hypoglycemia, to be inconsistently better than NPH. These small differences, plus once-daily dosing, may encourage prescribing of analog basal insulin, but price and the need for more than once-daily dosing remain worthy considerations.

Finerenone treatment of patients with type 2 diabetes and diabetic kidney disease was linked to a significant drop in the incidence of new-onset atrial fibrillation as a prespecified, exploratory endpoint of the FIDELIO-DKD pivotal trial that randomized more than 5,700 patients.

Treatment with finerenone linked with a 29% relative reduction compared with placebo in incident cases of atrial fibrillation (AFib), Gerasimos Filippatos, MD, reported at the annual scientific sessions of the American College of Cardiology.

The absolute reduction was modest, a 1.3% reduction from the 4.5% incidence rate on placebo to a 3.2% rate on finerenone during a median 2.6 years of follow-up. Concurrently with the report, the results appeared online (J Am Coll Cardiol. 2021 May 17. doi: 10.1016/j.jacc.2021.04.079).

The analyses Dr. Filippatos presented also showed that whether or not patients had a history of AFib, there was no impact on either the primary benefit from finerenone treatment seen in FIDELIO-DKD, which was a significant 18% relative risk reduction compared with placebo in the combined rate of kidney failure, a 40% or greater decline from baseline in estimated glomerular filtration rate, or renal death.

Likewise, prior AFib status had no effect on the study’s key secondary endpoint, a significant 14% relative risk reduction in the combined rate of cardiovascular death, nonfatal MI, nonfatal stroke, or hospitalization for heart failure.

The primary results from FIDELIO-DKD (Efficacy and Safety of Finerenone in Subjects With Type 2 Diabetes Mellitus and Diabetic Kidney Disease) appeared in a 2020 report (N Engl J Med. 2020 Dec 3;383[23];2219-29).
 

‘Side benefits can be very helpful’

“It’s important to know of finerenone’s benefits beyond the primary outcome of a trial because side benefits can be very helpful,” said Anne B. Curtis, MD, an electrophysiologist and professor and chair of medicine at the University of Buffalo (N.Y.) School of Medicine and Biomedical Sciences. “It’s not a huge benefit, but this could be an added benefit for selected patients,” she said during a press briefing. “Background studies had shown favorable remodeling of the heart [by finerenone] that could affect AFib.”

Possible mitigating effects by finerenone on inflammation and fibrosis might also mediate the drug’s apparent effect on AFib, said Dr. Filippatos, professor of cardiology and director of the Heart Failure and Cardio-Oncology Clinic at Attikon University Hospital and the University of Athens.

He noted that additional data addressing a possible AFib effect of finerenone will emerge soon from the FIGARO-DKD trial, which enrolled patients similar to those in FIDELIO-DKD but with more moderate stages of kidney disease, and from the FINEARTS-HF trial, which is examining the effect of finerenone in patients with heart failure with an ejection fraction of at least 40%.

“Heart failure and AFib go together tightly. It’s worth studying this specifically, so we can see whether there is an impact of finerenone on patients with heart failure who may not necessarily have kidney disease or diabetes,” Dr. Curtis said.
 

Hypothesis-generating findings

The new findings reported by Dr. Filippatos “should be considered hypothesis generating. Until we have more information, upstream therapies, including mineralocorticoid receptor antagonists [MRAs, the umbrella drug class that includes finerenone], should be used in appropriate patient populations based on defined benefits with the hope they will also reduce the development of AFib and atrial flutter over time,” Gerald V. Naccarelli, MD, and coauthors wrote in an editorial that accompanied the report (J Am Coll Cardiol. 2021 May 17. doi: 10.1016/j.jacc.2021.04.080).

The FIDELIO-DKD trial randomized 5,734 patients at 913 sites in 48 countries, including 461 patients with a history of AFib. The observed link of finerenone treatment with a reduced incidence of AFib appeared consistent regardless of patients’ age, sex, race, their kidney characteristics at baseline, baseline levels of systolic blood pressure, serum potassium, body mass index, A1c, or use of glucose-lowering medications.

Finerenone belongs to a new class of MRAs that have a nonsteroidal structure, in contrast with the MRAs spironolactone and eplerenone. This means that finerenone does not produce steroidal-associated adverse effects linked with certain other MRAs, such as gynecomastia, and may also differ in other actions.

FIDELIO-DKD was sponsored by Bayer, the company developing finerenone. Dr. Filippatos has received lecture fees from or participated in the direction of trials on behalf of Bayer, as well as for Amgen, Boehringer Ingelheim, Medtronic, Novartis, Servier, and Vifor. Dr. Curtis is an adviser to and receives honoraria from St. Jude Medical, and receives honoraria from Medtronic. Dr. Naccarelli has been a consultant to Acesion, ARCA, GlaxoSmithKline, Janssen, Milestone, Omeicos, and Sanofi. His coauthors had no disclosures.

[email protected]

Finerenone treatment of patients with type 2 diabetes and diabetic kidney disease was linked to a significant drop in the incidence of new-onset atrial fibrillation as a prespecified, exploratory endpoint of the FIDELIO-DKD pivotal trial that randomized more than 5,700 patients.

Treatment with finerenone linked with a 29% relative reduction compared with placebo in incident cases of atrial fibrillation (AFib), Gerasimos Filippatos, MD, reported at the annual scientific sessions of the American College of Cardiology.

The absolute reduction was modest, a 1.3% reduction from the 4.5% incidence rate on placebo to a 3.2% rate on finerenone during a median 2.6 years of follow-up. Concurrently with the report, the results appeared online (J Am Coll Cardiol. 2021 May 17. doi: 10.1016/j.jacc.2021.04.079).

The analyses Dr. Filippatos presented also showed that whether or not patients had a history of AFib, there was no impact on either the primary benefit from finerenone treatment seen in FIDELIO-DKD, which was a significant 18% relative risk reduction compared with placebo in the combined rate of kidney failure, a 40% or greater decline from baseline in estimated glomerular filtration rate, or renal death.

Likewise, prior AFib status had no effect on the study’s key secondary endpoint, a significant 14% relative risk reduction in the combined rate of cardiovascular death, nonfatal MI, nonfatal stroke, or hospitalization for heart failure.

The primary results from FIDELIO-DKD (Efficacy and Safety of Finerenone in Subjects With Type 2 Diabetes Mellitus and Diabetic Kidney Disease) appeared in a 2020 report (N Engl J Med. 2020 Dec 3;383[23];2219-29).
 

‘Side benefits can be very helpful’

“It’s important to know of finerenone’s benefits beyond the primary outcome of a trial because side benefits can be very helpful,” said Anne B. Curtis, MD, an electrophysiologist and professor and chair of medicine at the University of Buffalo (N.Y.) School of Medicine and Biomedical Sciences. “It’s not a huge benefit, but this could be an added benefit for selected patients,” she said during a press briefing. “Background studies had shown favorable remodeling of the heart [by finerenone] that could affect AFib.”

Possible mitigating effects by finerenone on inflammation and fibrosis might also mediate the drug’s apparent effect on AFib, said Dr. Filippatos, professor of cardiology and director of the Heart Failure and Cardio-Oncology Clinic at Attikon University Hospital and the University of Athens.

He noted that additional data addressing a possible AFib effect of finerenone will emerge soon from the FIGARO-DKD trial, which enrolled patients similar to those in FIDELIO-DKD but with more moderate stages of kidney disease, and from the FINEARTS-HF trial, which is examining the effect of finerenone in patients with heart failure with an ejection fraction of at least 40%.

“Heart failure and AFib go together tightly. It’s worth studying this specifically, so we can see whether there is an impact of finerenone on patients with heart failure who may not necessarily have kidney disease or diabetes,” Dr. Curtis said.
 

Hypothesis-generating findings

The new findings reported by Dr. Filippatos “should be considered hypothesis generating. Until we have more information, upstream therapies, including mineralocorticoid receptor antagonists [MRAs, the umbrella drug class that includes finerenone], should be used in appropriate patient populations based on defined benefits with the hope they will also reduce the development of AFib and atrial flutter over time,” Gerald V. Naccarelli, MD, and coauthors wrote in an editorial that accompanied the report (J Am Coll Cardiol. 2021 May 17. doi: 10.1016/j.jacc.2021.04.080).

The FIDELIO-DKD trial randomized 5,734 patients at 913 sites in 48 countries, including 461 patients with a history of AFib. The observed link of finerenone treatment with a reduced incidence of AFib appeared consistent regardless of patients’ age, sex, race, their kidney characteristics at baseline, baseline levels of systolic blood pressure, serum potassium, body mass index, A1c, or use of glucose-lowering medications.

Finerenone belongs to a new class of MRAs that have a nonsteroidal structure, in contrast with the MRAs spironolactone and eplerenone. This means that finerenone does not produce steroidal-associated adverse effects linked with certain other MRAs, such as gynecomastia, and may also differ in other actions.

FIDELIO-DKD was sponsored by Bayer, the company developing finerenone. Dr. Filippatos has received lecture fees from or participated in the direction of trials on behalf of Bayer, as well as for Amgen, Boehringer Ingelheim, Medtronic, Novartis, Servier, and Vifor. Dr. Curtis is an adviser to and receives honoraria from St. Jude Medical, and receives honoraria from Medtronic. Dr. Naccarelli has been a consultant to Acesion, ARCA, GlaxoSmithKline, Janssen, Milestone, Omeicos, and Sanofi. His coauthors had no disclosures.

[email protected]

Finerenone treatment of patients with type 2 diabetes and diabetic kidney disease was linked to a significant drop in the incidence of new-onset atrial fibrillation as a prespecified, exploratory endpoint of the FIDELIO-DKD pivotal trial that randomized more than 5,700 patients.

Treatment with finerenone linked with a 29% relative reduction compared with placebo in incident cases of atrial fibrillation (AFib), Gerasimos Filippatos, MD, reported at the annual scientific sessions of the American College of Cardiology.

The absolute reduction was modest, a 1.3% reduction from the 4.5% incidence rate on placebo to a 3.2% rate on finerenone during a median 2.6 years of follow-up. Concurrently with the report, the results appeared online (J Am Coll Cardiol. 2021 May 17. doi: 10.1016/j.jacc.2021.04.079).

The analyses Dr. Filippatos presented also showed that whether or not patients had a history of AFib, there was no impact on either the primary benefit from finerenone treatment seen in FIDELIO-DKD, which was a significant 18% relative risk reduction compared with placebo in the combined rate of kidney failure, a 40% or greater decline from baseline in estimated glomerular filtration rate, or renal death.

Likewise, prior AFib status had no effect on the study’s key secondary endpoint, a significant 14% relative risk reduction in the combined rate of cardiovascular death, nonfatal MI, nonfatal stroke, or hospitalization for heart failure.

The primary results from FIDELIO-DKD (Efficacy and Safety of Finerenone in Subjects With Type 2 Diabetes Mellitus and Diabetic Kidney Disease) appeared in a 2020 report (N Engl J Med. 2020 Dec 3;383[23];2219-29).
 

‘Side benefits can be very helpful’

“It’s important to know of finerenone’s benefits beyond the primary outcome of a trial because side benefits can be very helpful,” said Anne B. Curtis, MD, an electrophysiologist and professor and chair of medicine at the University of Buffalo (N.Y.) School of Medicine and Biomedical Sciences. “It’s not a huge benefit, but this could be an added benefit for selected patients,” she said during a press briefing. “Background studies had shown favorable remodeling of the heart [by finerenone] that could affect AFib.”

Possible mitigating effects by finerenone on inflammation and fibrosis might also mediate the drug’s apparent effect on AFib, said Dr. Filippatos, professor of cardiology and director of the Heart Failure and Cardio-Oncology Clinic at Attikon University Hospital and the University of Athens.

He noted that additional data addressing a possible AFib effect of finerenone will emerge soon from the FIGARO-DKD trial, which enrolled patients similar to those in FIDELIO-DKD but with more moderate stages of kidney disease, and from the FINEARTS-HF trial, which is examining the effect of finerenone in patients with heart failure with an ejection fraction of at least 40%.

“Heart failure and AFib go together tightly. It’s worth studying this specifically, so we can see whether there is an impact of finerenone on patients with heart failure who may not necessarily have kidney disease or diabetes,” Dr. Curtis said.
 

Hypothesis-generating findings

The new findings reported by Dr. Filippatos “should be considered hypothesis generating. Until we have more information, upstream therapies, including mineralocorticoid receptor antagonists [MRAs, the umbrella drug class that includes finerenone], should be used in appropriate patient populations based on defined benefits with the hope they will also reduce the development of AFib and atrial flutter over time,” Gerald V. Naccarelli, MD, and coauthors wrote in an editorial that accompanied the report (J Am Coll Cardiol. 2021 May 17. doi: 10.1016/j.jacc.2021.04.080).

The FIDELIO-DKD trial randomized 5,734 patients at 913 sites in 48 countries, including 461 patients with a history of AFib. The observed link of finerenone treatment with a reduced incidence of AFib appeared consistent regardless of patients’ age, sex, race, their kidney characteristics at baseline, baseline levels of systolic blood pressure, serum potassium, body mass index, A1c, or use of glucose-lowering medications.

Finerenone belongs to a new class of MRAs that have a nonsteroidal structure, in contrast with the MRAs spironolactone and eplerenone. This means that finerenone does not produce steroidal-associated adverse effects linked with certain other MRAs, such as gynecomastia, and may also differ in other actions.

FIDELIO-DKD was sponsored by Bayer, the company developing finerenone. Dr. Filippatos has received lecture fees from or participated in the direction of trials on behalf of Bayer, as well as for Amgen, Boehringer Ingelheim, Medtronic, Novartis, Servier, and Vifor. Dr. Curtis is an adviser to and receives honoraria from St. Jude Medical, and receives honoraria from Medtronic. Dr. Naccarelli has been a consultant to Acesion, ARCA, GlaxoSmithKline, Janssen, Milestone, Omeicos, and Sanofi. His coauthors had no disclosures.

[email protected]

In patients hospitalized with COVID-19 infection, the sodium-glucose transporter 2 inhibitor dapagliflozin showed a trend for benefit relative to placebo on multiple outcomes, including the primary outcome of time to organ failure or death, according to results from the randomized DARE-19 trial.

Because of the failure to reach statistical significance, these results have no immediate relevance, but the trends support interest in further testing SGLT2 inhibitors in acute diseases posing a high risk for organ failure, according to Mikhail Kosiborod, MD.

In a trial that did not meet its primary endpoint, Dr. Kosiborod acknowledged that positive interpretations are speculative, but he does believe that there is one immediate take-home message.

“Our results do not support discontinuation of SGLT2 inhibitors in the setting of COVID-19 as long as patients are monitored,” said Dr. Kosiborod, director of cardiometabolic research at Saint Luke’s Mid-America Heart Institute, Kansas City, Mo.

At many institutions, it has been common to discontinue SGLT2 inhibitors in patients admitted with COVID-19. One reason was the concern that drugs in this class could exacerbate organ damage, particularly if they were to induced ketoacidosis. However, only 2 (0.003%) of 613 patients treated with dapagliflozin developed ketoacidosis, and the signal for organ protection overall, although not significant, was consistent.

“Numerically, fewer patients treated with dapagliflozin experienced organ failure and death, and this was consistent across systems, including the kidney,” Dr. Kosiborod said in presenting the study at the annual scientific sessions of the American College of Cardiology.

Overall, the study suggests that, in the context of COVID-19, dapagliflozin did not show harm and might have potential benefit, he added.

DARE-19 was rapidly conceived, designed, and implemented during the early stages of the COVID-19 pandemic. Based on prior evidence that SGLT2 inhibitors “favorably affect a number of pathophysiologic pathways disrupted during acute illness” and that drugs in this class have provided organ protection in the context of heart failure, chronic kidney disease, and other cardiometabolic conditions, the study was designed to test the hypothesis that this mechanism might improve outcomes in patients hospitalized with COVID-19, Dr. Kosiborod said.

The entry criteria included confirmed or suspected COVID-19 with an onset of 4 days of fewer and one additional risk factor, such as atherosclerotic cardiovascular disease, hypertension, or type 2 diabetes. Patients with significant renal impairment or a history of diabetic ketoacidosis were excluded.

On top of standard treatments for COVID-19, patients were randomized to 10 mg dapagliflozin or placebo once daily. There were two primary endpoints. That of prevention was time to criteria for respiratory, cardiovascular, or renal organ failure or death. The second primary outcome, for recovery, was a hierarchical composite for four endpoints: death, organ failure, status at 30 days if hospitalized, and time to discharge if this occurred before day 30.

Of the 1,250 patients randomized at 95 sites in seven countries, 617 in the dapagliflozin group and 620 patients in the placebo group completed the study. Baseline characteristics, which included a mean of age of 62 years; types of comorbidities; and types of treatments were similar.
 

Results for two primary endpoints

The curves for the primary outcome of prevention had already separated by day 3 and continued to widen over the 30 days in which outcomes were compared. At the end of 30 days, 11.2% of the dapagliflozin group and 13.8% of the placebo group had an event. By hazard ratio, dapagliflozin was linked to 20% nonsignificant relative protection from events (hazard ratio, 0.80; 95% confidence interval, 0.58-1.10).

The trend (P = .168) for the primary endpoint for prevention was reflected in the individual components. For dapagliflozin related to placebo, there were generally similar or greater reductions in new or worsening organ failure (HR, 0.80), cardiac decompensation (HR, 0.81), respiratory decompensation (HR, 0.85), and kidney decompensation (HR, 0.65). None were statistically significant, but the confidence intervals were tight with the upper end never exceeding 1.20.

Moreover, the relative risk reduction for all-cause mortality moved in the same direction (HR, 0.77; 95% CI, 0.52-1.16).

In the hierarchical composite endpoint of recovery, there was no significant difference in the time to discharge, but again many recovery metrics numerically favored dapagliflozin with an overall difference producing a statistical trend (P = .14) similar to organ failure events and death.

In safety analyses, dapagliflozin consistently outperformed placebo across a broad array of safety measure, including any severe adverse event (65% vs. 82%), any adverse event with an outcome of death (32% vs. 48%), discontinuation caused by an adverse event (44% vs. 55%), and acute kidney injury (21% vs. 34%).
 

Data could fuel related studies

According to Ana Barac, MD, PhD, director of the cardio-oncology program in the Medstar Heart and Vascular Institute, Washington, these data are “thought provoking.” Although this was a negative trial, she said that it generates an “exciting hypothesis” about the potential of SGLT2 inhibitors to provide organ protection. She called for studies to pursue this path of research.

More immediately, Dr. Barac agreed that these data argue against stopping SGLT2 inhibitors in patients admitted to a hospital for COVID-19 infection.

“These data show that these drugs are not going to lead to harm, but they might lead to benefit,” she said.

For James Januzzi, MD, a cardiologist at Massachusetts General Hospital and professor of medicine at Harvard Medical School, both in Boston, DARE-19 was perhaps most impressive because of its rigorous design and execution in the midst of a pandemic.

Over the past year, “the medical literature was flooded with grossly underpowered, poorly designed, single-center studies” yielding results that have been hard to interpret, Dr. Januzzi said. Despite the fact that this study failed to confirm its hypothesis, he said the investigators deserve praise for the quality of the work.

Courtesy Massachusetts General Hospital

Dr. Januzzi also believes the study is not without clinically relevant findings, particularly the fact that dapagliflozin was associated with a lower rate of adverse events than placebo. This, at least, provides reassurance about the safety of this drug in the setting of COVID-19 infection.

Dr. Kosiborod reported financial relationships with more than 10 pharmaceutical companies, including AstraZeneca, which provided funding for DARE-19. Dr. Barac reported financial relationships with Bristol-Myers Squibb and CTI BioPharma. Dr. Januzzi reported financial relationships with Boehringer Ingelheim, GE Healthcare, Johnson & Johnson, Merck, Novartis, Pfizer, and Roche.

In patients hospitalized with COVID-19 infection, the sodium-glucose transporter 2 inhibitor dapagliflozin showed a trend for benefit relative to placebo on multiple outcomes, including the primary outcome of time to organ failure or death, according to results from the randomized DARE-19 trial.

Because of the failure to reach statistical significance, these results have no immediate relevance, but the trends support interest in further testing SGLT2 inhibitors in acute diseases posing a high risk for organ failure, according to Mikhail Kosiborod, MD.

In a trial that did not meet its primary endpoint, Dr. Kosiborod acknowledged that positive interpretations are speculative, but he does believe that there is one immediate take-home message.

“Our results do not support discontinuation of SGLT2 inhibitors in the setting of COVID-19 as long as patients are monitored,” said Dr. Kosiborod, director of cardiometabolic research at Saint Luke’s Mid-America Heart Institute, Kansas City, Mo.

At many institutions, it has been common to discontinue SGLT2 inhibitors in patients admitted with COVID-19. One reason was the concern that drugs in this class could exacerbate organ damage, particularly if they were to induced ketoacidosis. However, only 2 (0.003%) of 613 patients treated with dapagliflozin developed ketoacidosis, and the signal for organ protection overall, although not significant, was consistent.

“Numerically, fewer patients treated with dapagliflozin experienced organ failure and death, and this was consistent across systems, including the kidney,” Dr. Kosiborod said in presenting the study at the annual scientific sessions of the American College of Cardiology.

Overall, the study suggests that, in the context of COVID-19, dapagliflozin did not show harm and might have potential benefit, he added.

DARE-19 was rapidly conceived, designed, and implemented during the early stages of the COVID-19 pandemic. Based on prior evidence that SGLT2 inhibitors “favorably affect a number of pathophysiologic pathways disrupted during acute illness” and that drugs in this class have provided organ protection in the context of heart failure, chronic kidney disease, and other cardiometabolic conditions, the study was designed to test the hypothesis that this mechanism might improve outcomes in patients hospitalized with COVID-19, Dr. Kosiborod said.

The entry criteria included confirmed or suspected COVID-19 with an onset of 4 days of fewer and one additional risk factor, such as atherosclerotic cardiovascular disease, hypertension, or type 2 diabetes. Patients with significant renal impairment or a history of diabetic ketoacidosis were excluded.

On top of standard treatments for COVID-19, patients were randomized to 10 mg dapagliflozin or placebo once daily. There were two primary endpoints. That of prevention was time to criteria for respiratory, cardiovascular, or renal organ failure or death. The second primary outcome, for recovery, was a hierarchical composite for four endpoints: death, organ failure, status at 30 days if hospitalized, and time to discharge if this occurred before day 30.

Of the 1,250 patients randomized at 95 sites in seven countries, 617 in the dapagliflozin group and 620 patients in the placebo group completed the study. Baseline characteristics, which included a mean of age of 62 years; types of comorbidities; and types of treatments were similar.
 

Results for two primary endpoints

The curves for the primary outcome of prevention had already separated by day 3 and continued to widen over the 30 days in which outcomes were compared. At the end of 30 days, 11.2% of the dapagliflozin group and 13.8% of the placebo group had an event. By hazard ratio, dapagliflozin was linked to 20% nonsignificant relative protection from events (hazard ratio, 0.80; 95% confidence interval, 0.58-1.10).

The trend (P = .168) for the primary endpoint for prevention was reflected in the individual components. For dapagliflozin related to placebo, there were generally similar or greater reductions in new or worsening organ failure (HR, 0.80), cardiac decompensation (HR, 0.81), respiratory decompensation (HR, 0.85), and kidney decompensation (HR, 0.65). None were statistically significant, but the confidence intervals were tight with the upper end never exceeding 1.20.

Moreover, the relative risk reduction for all-cause mortality moved in the same direction (HR, 0.77; 95% CI, 0.52-1.16).

In the hierarchical composite endpoint of recovery, there was no significant difference in the time to discharge, but again many recovery metrics numerically favored dapagliflozin with an overall difference producing a statistical trend (P = .14) similar to organ failure events and death.

In safety analyses, dapagliflozin consistently outperformed placebo across a broad array of safety measure, including any severe adverse event (65% vs. 82%), any adverse event with an outcome of death (32% vs. 48%), discontinuation caused by an adverse event (44% vs. 55%), and acute kidney injury (21% vs. 34%).
 

Data could fuel related studies

According to Ana Barac, MD, PhD, director of the cardio-oncology program in the Medstar Heart and Vascular Institute, Washington, these data are “thought provoking.” Although this was a negative trial, she said that it generates an “exciting hypothesis” about the potential of SGLT2 inhibitors to provide organ protection. She called for studies to pursue this path of research.

More immediately, Dr. Barac agreed that these data argue against stopping SGLT2 inhibitors in patients admitted to a hospital for COVID-19 infection.

“These data show that these drugs are not going to lead to harm, but they might lead to benefit,” she said.

For James Januzzi, MD, a cardiologist at Massachusetts General Hospital and professor of medicine at Harvard Medical School, both in Boston, DARE-19 was perhaps most impressive because of its rigorous design and execution in the midst of a pandemic.

Over the past year, “the medical literature was flooded with grossly underpowered, poorly designed, single-center studies” yielding results that have been hard to interpret, Dr. Januzzi said. Despite the fact that this study failed to confirm its hypothesis, he said the investigators deserve praise for the quality of the work.

Courtesy Massachusetts General Hospital

Dr. Januzzi also believes the study is not without clinically relevant findings, particularly the fact that dapagliflozin was associated with a lower rate of adverse events than placebo. This, at least, provides reassurance about the safety of this drug in the setting of COVID-19 infection.

Dr. Kosiborod reported financial relationships with more than 10 pharmaceutical companies, including AstraZeneca, which provided funding for DARE-19. Dr. Barac reported financial relationships with Bristol-Myers Squibb and CTI BioPharma. Dr. Januzzi reported financial relationships with Boehringer Ingelheim, GE Healthcare, Johnson & Johnson, Merck, Novartis, Pfizer, and Roche.

In patients hospitalized with COVID-19 infection, the sodium-glucose transporter 2 inhibitor dapagliflozin showed a trend for benefit relative to placebo on multiple outcomes, including the primary outcome of time to organ failure or death, according to results from the randomized DARE-19 trial.

Because of the failure to reach statistical significance, these results have no immediate relevance, but the trends support interest in further testing SGLT2 inhibitors in acute diseases posing a high risk for organ failure, according to Mikhail Kosiborod, MD.

In a trial that did not meet its primary endpoint, Dr. Kosiborod acknowledged that positive interpretations are speculative, but he does believe that there is one immediate take-home message.

“Our results do not support discontinuation of SGLT2 inhibitors in the setting of COVID-19 as long as patients are monitored,” said Dr. Kosiborod, director of cardiometabolic research at Saint Luke’s Mid-America Heart Institute, Kansas City, Mo.

At many institutions, it has been common to discontinue SGLT2 inhibitors in patients admitted with COVID-19. One reason was the concern that drugs in this class could exacerbate organ damage, particularly if they were to induced ketoacidosis. However, only 2 (0.003%) of 613 patients treated with dapagliflozin developed ketoacidosis, and the signal for organ protection overall, although not significant, was consistent.

“Numerically, fewer patients treated with dapagliflozin experienced organ failure and death, and this was consistent across systems, including the kidney,” Dr. Kosiborod said in presenting the study at the annual scientific sessions of the American College of Cardiology.

Overall, the study suggests that, in the context of COVID-19, dapagliflozin did not show harm and might have potential benefit, he added.

DARE-19 was rapidly conceived, designed, and implemented during the early stages of the COVID-19 pandemic. Based on prior evidence that SGLT2 inhibitors “favorably affect a number of pathophysiologic pathways disrupted during acute illness” and that drugs in this class have provided organ protection in the context of heart failure, chronic kidney disease, and other cardiometabolic conditions, the study was designed to test the hypothesis that this mechanism might improve outcomes in patients hospitalized with COVID-19, Dr. Kosiborod said.

The entry criteria included confirmed or suspected COVID-19 with an onset of 4 days of fewer and one additional risk factor, such as atherosclerotic cardiovascular disease, hypertension, or type 2 diabetes. Patients with significant renal impairment or a history of diabetic ketoacidosis were excluded.

On top of standard treatments for COVID-19, patients were randomized to 10 mg dapagliflozin or placebo once daily. There were two primary endpoints. That of prevention was time to criteria for respiratory, cardiovascular, or renal organ failure or death. The second primary outcome, for recovery, was a hierarchical composite for four endpoints: death, organ failure, status at 30 days if hospitalized, and time to discharge if this occurred before day 30.

Of the 1,250 patients randomized at 95 sites in seven countries, 617 in the dapagliflozin group and 620 patients in the placebo group completed the study. Baseline characteristics, which included a mean of age of 62 years; types of comorbidities; and types of treatments were similar.
 

Results for two primary endpoints

The curves for the primary outcome of prevention had already separated by day 3 and continued to widen over the 30 days in which outcomes were compared. At the end of 30 days, 11.2% of the dapagliflozin group and 13.8% of the placebo group had an event. By hazard ratio, dapagliflozin was linked to 20% nonsignificant relative protection from events (hazard ratio, 0.80; 95% confidence interval, 0.58-1.10).

The trend (P = .168) for the primary endpoint for prevention was reflected in the individual components. For dapagliflozin related to placebo, there were generally similar or greater reductions in new or worsening organ failure (HR, 0.80), cardiac decompensation (HR, 0.81), respiratory decompensation (HR, 0.85), and kidney decompensation (HR, 0.65). None were statistically significant, but the confidence intervals were tight with the upper end never exceeding 1.20.

Moreover, the relative risk reduction for all-cause mortality moved in the same direction (HR, 0.77; 95% CI, 0.52-1.16).

In the hierarchical composite endpoint of recovery, there was no significant difference in the time to discharge, but again many recovery metrics numerically favored dapagliflozin with an overall difference producing a statistical trend (P = .14) similar to organ failure events and death.

In safety analyses, dapagliflozin consistently outperformed placebo across a broad array of safety measure, including any severe adverse event (65% vs. 82%), any adverse event with an outcome of death (32% vs. 48%), discontinuation caused by an adverse event (44% vs. 55%), and acute kidney injury (21% vs. 34%).
 

Data could fuel related studies

According to Ana Barac, MD, PhD, director of the cardio-oncology program in the Medstar Heart and Vascular Institute, Washington, these data are “thought provoking.” Although this was a negative trial, she said that it generates an “exciting hypothesis” about the potential of SGLT2 inhibitors to provide organ protection. She called for studies to pursue this path of research.

More immediately, Dr. Barac agreed that these data argue against stopping SGLT2 inhibitors in patients admitted to a hospital for COVID-19 infection.

“These data show that these drugs are not going to lead to harm, but they might lead to benefit,” she said.

For James Januzzi, MD, a cardiologist at Massachusetts General Hospital and professor of medicine at Harvard Medical School, both in Boston, DARE-19 was perhaps most impressive because of its rigorous design and execution in the midst of a pandemic.

Over the past year, “the medical literature was flooded with grossly underpowered, poorly designed, single-center studies” yielding results that have been hard to interpret, Dr. Januzzi said. Despite the fact that this study failed to confirm its hypothesis, he said the investigators deserve praise for the quality of the work.

Courtesy Massachusetts General Hospital

Dr. Januzzi also believes the study is not without clinically relevant findings, particularly the fact that dapagliflozin was associated with a lower rate of adverse events than placebo. This, at least, provides reassurance about the safety of this drug in the setting of COVID-19 infection.

Dr. Kosiborod reported financial relationships with more than 10 pharmaceutical companies, including AstraZeneca, which provided funding for DARE-19. Dr. Barac reported financial relationships with Bristol-Myers Squibb and CTI BioPharma. Dr. Januzzi reported financial relationships with Boehringer Ingelheim, GE Healthcare, Johnson & Johnson, Merck, Novartis, Pfizer, and Roche.

Vegetarians have more favorable levels of a number of biomarkers including cardiovascular-linked ones – total cholesterol, low-density lipoprotein cholesterol, and apolipoprotein A and B – than meat eaters, according to results of the largest study of its kind to date.

Results of the cross-sectional, observational study of 178,000 participants were presented as an electronic poster at this year’s online European Congress on Obesity by Jirapitcha Boonpor of the Institute of Cardiovascular & Medical Sciences, University of Glasgow (Scotland).

“We found that the health benefits of becoming a vegetarian were independent of adiposity and other sociodemographic and lifestyle-related confounding factors,” senior author Carlos Celis-Morales, PhD, also from the University of Glasgow, said in an interview.

Total cholesterol and LDL cholesterol concentrations for vegetarians were 21% and 16.4% lower than in meat eaters. But some biomarkers considered beneficial – including vitamin D concentrations – were lower in vegetarians, while some considered unhealthy – including triglycerides and cystatin-C levels – were higher.  

Vegetarian diets have recently become much more popular, but there is insufficient information about the health benefits. Prior reports of associations between biomarkers and a vegetarian diet were unclear, including evidence of any metabolic benefits, noted Dr. Celis-Morales.

Importantly, participants in the study had followed a vegetarian or meat-eater diet for at least 5 years before their biomarkers in blood and urine were assessed.

“If you modify your diet, then, 2 weeks later, you can see changes in some metabolic markers, but changes in markers of cardiovascular disease will take 5-10 years,” he explained.
 

No single biomarker can assess health

Asked to comment on the findings, John C. Mathers, PhD, noted that they clearly confirm the importance of not reading any biomarker result in isolation.

Health is complex and individual markers tell you just part of the story,” said Dr. Mathers of the Human Nutrition Research Centre, Newcastle (England) University.

He says a vegetarian diet can be nourishing but cautioned that “just because someone excludes meat from their diet does not mean necessarily that they will be eating a healthy diet.”

“Some of the biomarker differences seen in this work – such as the lower concentrations of total cholesterol and LDL cholesterol, GGT [gamma-glutamyl transferase], and ALT [alanine transaminase] – are indicators that the vegetarians were healthier than the meat eaters. However, other differences were less encouraging, including the lower concentrations of vitamin D and higher concentrations of triglycerides and cystatin-C.”

Also reflecting on the results, Jose Lara Gallegos, PhD, senior lecturer in human nutrition at Northumbria University, Newcastle upon Tyne, England, said they support previous evidence from large studies such as the European Prospective Investigation into Cancer and Nutrition (EPIC), which showed that a vegetarian diet is associated with a lower risk of heart disease.

“A vegetarian diet might also be associated with lower risk for liver diseases such as nonalcoholic fatty liver disease,” Dr. Gallegos said, but added that some levels of biomarkers considered to be “healthy” were lower in the vegetarians, and it is important to remember that strictly restricted diets might be associated with potential risks of nutritional inadequacies.

“Other, less restrictive dietary patterns, such as a Mediterranean diet, are also associated with ... health benefits,” he observed.
 

Large data sample from the UK Biobank study

“Specifically, we wanted to know if vegetarians were healthier because they are generally leaner and lead healthier lives, or whether their diet specifically was responsible for their improved metabolic and cardiovascular health,” Dr. Celis-Morales explained.

Data were included from 177,723 healthy participants from the UK Biobank study who were aged 37-73 years and had reported no major dietary changes over the last 5 years. In total, 4,111 participants were self-reported vegetarians who followed a diet without red meat, poultry, or fish, and 166,516 participants were meat eaters.

Nineteen biomarkers related to diabetes, hypertension, cardiovascular diseases, cancer, and liver and renal function were included, and the associations between vegetarian diet and biomarkers, compared with meat eaters, were examined.

To minimize confounding, the findings were adjusted for age, sex, deprivation, education, ethnicity, smoking, total sedentary time, type of physical activity, alcohol intake, body mass index, and waist circumference.

Compared with meat eaters, vegetarians had significantly lower concentrations of 14 biomarkers, including total cholesterol (21% lower); LDL (16% lower); lipoprotein A (1% lower), lipoprotein B (4% lower), and liver function markers (GGT: 354% lower, and ALT: 153% lower), IGF-1 (134% lower), urate (122% lower), total protein (29% lower), creatinine (607% lower), and C-reactive protein (10% lower).

However, the researchers found that, compared with meat eaters, vegetarians had significantly higher concentrations of some unhealthy biomarkers, including triglycerides (15% higher) and cystatin-C (4% higher), and lower levels of some beneficial biomarkers including high-density lipoprotein (HDL) cholesterol (5% lower), vitamin D (635% lower), and calcium (0.7% lower).

No associations were found for hemoglobin A1c, systolic blood pressure, and aminotransferase.

“Some biomarkers, for example urate, were very low in vegetarians, and this served to verify our results because we expected meat eaters to have higher levels of urate,” remarked Dr. Celis-Morales.
 

Diet commitment and cardiovascular outcomes

Many people, whether vegetarians or meat-eaters, follow short-term diets, for example, the Atkins or the 5:2 diet, and often lack continuity switching from one diet to the next, or back to regular eating.  

“They are healthy, but they do not commit for long enough to make a difference to metabolic markers or potentially long-term health. In contrast, vegetarians are usually fully committed but the reasons behind this commitment might be a concern for the environment or animal welfare, for example,” Dr. Celis-Morales pointed out.

However, he added that many vegetarians replace the meat in their diet with unhealthy alternatives. “They often eat too much pasta or potatoes, or other high-energy food with low nutritional value.”

Having identified metabolic markers specific to long-term vegetarian diets, Dr. Celis-Morales wanted to know what happens to vegetarians’ long-term cardiovascular health. He analyzed and published these outcomes in a separate study published in December 2020.

“Over 9 years of follow-up, we have found that vegetarians have a lower risk in terms of myocardial infarction in the long-term, as well as other cardiovascular disease,” he reported.

Asked whether there was an optimum age or time in life to become a vegetarian to improve health, Dr. Celis-Morales explained that the healthier you are, the less likely you will reap the health benefits of dietary changes – for example to being a vegetarian.

“It is more likely that those people who have unhealthy lifestyle risk factors, such as smoking, and high consumption of high-energy foods or processed meat are more likely to see positive health effects,” he said.  

Lifestyle changes to improve cardiovascular outcomes are usually more likely to be required at 40 or 50 years old than at younger ages. He also noted that metabolic markers tend to show clear improvement at around 3 months after adopting a particular diet but improvements in disease outcomes take a lot longer to become evident.

Dr. Celis-Morales and his team are currently conducting a further analysis to understand if the vegetarian diet is also associated with a lower risk of cancer, depression, and dementia, compared with meat-eaters.

Dr. Celis-Morales, Dr. Mathers, and Dr. Gallegos have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Vegetarians have more favorable levels of a number of biomarkers including cardiovascular-linked ones – total cholesterol, low-density lipoprotein cholesterol, and apolipoprotein A and B – than meat eaters, according to results of the largest study of its kind to date.

Results of the cross-sectional, observational study of 178,000 participants were presented as an electronic poster at this year’s online European Congress on Obesity by Jirapitcha Boonpor of the Institute of Cardiovascular & Medical Sciences, University of Glasgow (Scotland).

“We found that the health benefits of becoming a vegetarian were independent of adiposity and other sociodemographic and lifestyle-related confounding factors,” senior author Carlos Celis-Morales, PhD, also from the University of Glasgow, said in an interview.

Total cholesterol and LDL cholesterol concentrations for vegetarians were 21% and 16.4% lower than in meat eaters. But some biomarkers considered beneficial – including vitamin D concentrations – were lower in vegetarians, while some considered unhealthy – including triglycerides and cystatin-C levels – were higher.  

Vegetarian diets have recently become much more popular, but there is insufficient information about the health benefits. Prior reports of associations between biomarkers and a vegetarian diet were unclear, including evidence of any metabolic benefits, noted Dr. Celis-Morales.

Importantly, participants in the study had followed a vegetarian or meat-eater diet for at least 5 years before their biomarkers in blood and urine were assessed.

“If you modify your diet, then, 2 weeks later, you can see changes in some metabolic markers, but changes in markers of cardiovascular disease will take 5-10 years,” he explained.
 

No single biomarker can assess health

Asked to comment on the findings, John C. Mathers, PhD, noted that they clearly confirm the importance of not reading any biomarker result in isolation.

Health is complex and individual markers tell you just part of the story,” said Dr. Mathers of the Human Nutrition Research Centre, Newcastle (England) University.

He says a vegetarian diet can be nourishing but cautioned that “just because someone excludes meat from their diet does not mean necessarily that they will be eating a healthy diet.”

“Some of the biomarker differences seen in this work – such as the lower concentrations of total cholesterol and LDL cholesterol, GGT [gamma-glutamyl transferase], and ALT [alanine transaminase] – are indicators that the vegetarians were healthier than the meat eaters. However, other differences were less encouraging, including the lower concentrations of vitamin D and higher concentrations of triglycerides and cystatin-C.”

Also reflecting on the results, Jose Lara Gallegos, PhD, senior lecturer in human nutrition at Northumbria University, Newcastle upon Tyne, England, said they support previous evidence from large studies such as the European Prospective Investigation into Cancer and Nutrition (EPIC), which showed that a vegetarian diet is associated with a lower risk of heart disease.

“A vegetarian diet might also be associated with lower risk for liver diseases such as nonalcoholic fatty liver disease,” Dr. Gallegos said, but added that some levels of biomarkers considered to be “healthy” were lower in the vegetarians, and it is important to remember that strictly restricted diets might be associated with potential risks of nutritional inadequacies.

“Other, less restrictive dietary patterns, such as a Mediterranean diet, are also associated with ... health benefits,” he observed.
 

Large data sample from the UK Biobank study

“Specifically, we wanted to know if vegetarians were healthier because they are generally leaner and lead healthier lives, or whether their diet specifically was responsible for their improved metabolic and cardiovascular health,” Dr. Celis-Morales explained.

Data were included from 177,723 healthy participants from the UK Biobank study who were aged 37-73 years and had reported no major dietary changes over the last 5 years. In total, 4,111 participants were self-reported vegetarians who followed a diet without red meat, poultry, or fish, and 166,516 participants were meat eaters.

Nineteen biomarkers related to diabetes, hypertension, cardiovascular diseases, cancer, and liver and renal function were included, and the associations between vegetarian diet and biomarkers, compared with meat eaters, were examined.

To minimize confounding, the findings were adjusted for age, sex, deprivation, education, ethnicity, smoking, total sedentary time, type of physical activity, alcohol intake, body mass index, and waist circumference.

Compared with meat eaters, vegetarians had significantly lower concentrations of 14 biomarkers, including total cholesterol (21% lower); LDL (16% lower); lipoprotein A (1% lower), lipoprotein B (4% lower), and liver function markers (GGT: 354% lower, and ALT: 153% lower), IGF-1 (134% lower), urate (122% lower), total protein (29% lower), creatinine (607% lower), and C-reactive protein (10% lower).

However, the researchers found that, compared with meat eaters, vegetarians had significantly higher concentrations of some unhealthy biomarkers, including triglycerides (15% higher) and cystatin-C (4% higher), and lower levels of some beneficial biomarkers including high-density lipoprotein (HDL) cholesterol (5% lower), vitamin D (635% lower), and calcium (0.7% lower).

No associations were found for hemoglobin A1c, systolic blood pressure, and aminotransferase.

“Some biomarkers, for example urate, were very low in vegetarians, and this served to verify our results because we expected meat eaters to have higher levels of urate,” remarked Dr. Celis-Morales.
 

Diet commitment and cardiovascular outcomes

Many people, whether vegetarians or meat-eaters, follow short-term diets, for example, the Atkins or the 5:2 diet, and often lack continuity switching from one diet to the next, or back to regular eating.  

“They are healthy, but they do not commit for long enough to make a difference to metabolic markers or potentially long-term health. In contrast, vegetarians are usually fully committed but the reasons behind this commitment might be a concern for the environment or animal welfare, for example,” Dr. Celis-Morales pointed out.

However, he added that many vegetarians replace the meat in their diet with unhealthy alternatives. “They often eat too much pasta or potatoes, or other high-energy food with low nutritional value.”

Having identified metabolic markers specific to long-term vegetarian diets, Dr. Celis-Morales wanted to know what happens to vegetarians’ long-term cardiovascular health. He analyzed and published these outcomes in a separate study published in December 2020.

“Over 9 years of follow-up, we have found that vegetarians have a lower risk in terms of myocardial infarction in the long-term, as well as other cardiovascular disease,” he reported.

Asked whether there was an optimum age or time in life to become a vegetarian to improve health, Dr. Celis-Morales explained that the healthier you are, the less likely you will reap the health benefits of dietary changes – for example to being a vegetarian.

“It is more likely that those people who have unhealthy lifestyle risk factors, such as smoking, and high consumption of high-energy foods or processed meat are more likely to see positive health effects,” he said.  

Lifestyle changes to improve cardiovascular outcomes are usually more likely to be required at 40 or 50 years old than at younger ages. He also noted that metabolic markers tend to show clear improvement at around 3 months after adopting a particular diet but improvements in disease outcomes take a lot longer to become evident.

Dr. Celis-Morales and his team are currently conducting a further analysis to understand if the vegetarian diet is also associated with a lower risk of cancer, depression, and dementia, compared with meat-eaters.

Dr. Celis-Morales, Dr. Mathers, and Dr. Gallegos have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Vegetarians have more favorable levels of a number of biomarkers including cardiovascular-linked ones – total cholesterol, low-density lipoprotein cholesterol, and apolipoprotein A and B – than meat eaters, according to results of the largest study of its kind to date.

Results of the cross-sectional, observational study of 178,000 participants were presented as an electronic poster at this year’s online European Congress on Obesity by Jirapitcha Boonpor of the Institute of Cardiovascular & Medical Sciences, University of Glasgow (Scotland).

“We found that the health benefits of becoming a vegetarian were independent of adiposity and other sociodemographic and lifestyle-related confounding factors,” senior author Carlos Celis-Morales, PhD, also from the University of Glasgow, said in an interview.

Total cholesterol and LDL cholesterol concentrations for vegetarians were 21% and 16.4% lower than in meat eaters. But some biomarkers considered beneficial – including vitamin D concentrations – were lower in vegetarians, while some considered unhealthy – including triglycerides and cystatin-C levels – were higher.  

Vegetarian diets have recently become much more popular, but there is insufficient information about the health benefits. Prior reports of associations between biomarkers and a vegetarian diet were unclear, including evidence of any metabolic benefits, noted Dr. Celis-Morales.

Importantly, participants in the study had followed a vegetarian or meat-eater diet for at least 5 years before their biomarkers in blood and urine were assessed.

“If you modify your diet, then, 2 weeks later, you can see changes in some metabolic markers, but changes in markers of cardiovascular disease will take 5-10 years,” he explained.
 

No single biomarker can assess health

Asked to comment on the findings, John C. Mathers, PhD, noted that they clearly confirm the importance of not reading any biomarker result in isolation.

Health is complex and individual markers tell you just part of the story,” said Dr. Mathers of the Human Nutrition Research Centre, Newcastle (England) University.

He says a vegetarian diet can be nourishing but cautioned that “just because someone excludes meat from their diet does not mean necessarily that they will be eating a healthy diet.”

“Some of the biomarker differences seen in this work – such as the lower concentrations of total cholesterol and LDL cholesterol, GGT [gamma-glutamyl transferase], and ALT [alanine transaminase] – are indicators that the vegetarians were healthier than the meat eaters. However, other differences were less encouraging, including the lower concentrations of vitamin D and higher concentrations of triglycerides and cystatin-C.”

Also reflecting on the results, Jose Lara Gallegos, PhD, senior lecturer in human nutrition at Northumbria University, Newcastle upon Tyne, England, said they support previous evidence from large studies such as the European Prospective Investigation into Cancer and Nutrition (EPIC), which showed that a vegetarian diet is associated with a lower risk of heart disease.

“A vegetarian diet might also be associated with lower risk for liver diseases such as nonalcoholic fatty liver disease,” Dr. Gallegos said, but added that some levels of biomarkers considered to be “healthy” were lower in the vegetarians, and it is important to remember that strictly restricted diets might be associated with potential risks of nutritional inadequacies.

“Other, less restrictive dietary patterns, such as a Mediterranean diet, are also associated with ... health benefits,” he observed.
 

Large data sample from the UK Biobank study

“Specifically, we wanted to know if vegetarians were healthier because they are generally leaner and lead healthier lives, or whether their diet specifically was responsible for their improved metabolic and cardiovascular health,” Dr. Celis-Morales explained.

Data were included from 177,723 healthy participants from the UK Biobank study who were aged 37-73 years and had reported no major dietary changes over the last 5 years. In total, 4,111 participants were self-reported vegetarians who followed a diet without red meat, poultry, or fish, and 166,516 participants were meat eaters.

Nineteen biomarkers related to diabetes, hypertension, cardiovascular diseases, cancer, and liver and renal function were included, and the associations between vegetarian diet and biomarkers, compared with meat eaters, were examined.

To minimize confounding, the findings were adjusted for age, sex, deprivation, education, ethnicity, smoking, total sedentary time, type of physical activity, alcohol intake, body mass index, and waist circumference.

Compared with meat eaters, vegetarians had significantly lower concentrations of 14 biomarkers, including total cholesterol (21% lower); LDL (16% lower); lipoprotein A (1% lower), lipoprotein B (4% lower), and liver function markers (GGT: 354% lower, and ALT: 153% lower), IGF-1 (134% lower), urate (122% lower), total protein (29% lower), creatinine (607% lower), and C-reactive protein (10% lower).

However, the researchers found that, compared with meat eaters, vegetarians had significantly higher concentrations of some unhealthy biomarkers, including triglycerides (15% higher) and cystatin-C (4% higher), and lower levels of some beneficial biomarkers including high-density lipoprotein (HDL) cholesterol (5% lower), vitamin D (635% lower), and calcium (0.7% lower).

No associations were found for hemoglobin A1c, systolic blood pressure, and aminotransferase.

“Some biomarkers, for example urate, were very low in vegetarians, and this served to verify our results because we expected meat eaters to have higher levels of urate,” remarked Dr. Celis-Morales.
 

Diet commitment and cardiovascular outcomes

Many people, whether vegetarians or meat-eaters, follow short-term diets, for example, the Atkins or the 5:2 diet, and often lack continuity switching from one diet to the next, or back to regular eating.  

“They are healthy, but they do not commit for long enough to make a difference to metabolic markers or potentially long-term health. In contrast, vegetarians are usually fully committed but the reasons behind this commitment might be a concern for the environment or animal welfare, for example,” Dr. Celis-Morales pointed out.

However, he added that many vegetarians replace the meat in their diet with unhealthy alternatives. “They often eat too much pasta or potatoes, or other high-energy food with low nutritional value.”

Having identified metabolic markers specific to long-term vegetarian diets, Dr. Celis-Morales wanted to know what happens to vegetarians’ long-term cardiovascular health. He analyzed and published these outcomes in a separate study published in December 2020.

“Over 9 years of follow-up, we have found that vegetarians have a lower risk in terms of myocardial infarction in the long-term, as well as other cardiovascular disease,” he reported.

Asked whether there was an optimum age or time in life to become a vegetarian to improve health, Dr. Celis-Morales explained that the healthier you are, the less likely you will reap the health benefits of dietary changes – for example to being a vegetarian.

“It is more likely that those people who have unhealthy lifestyle risk factors, such as smoking, and high consumption of high-energy foods or processed meat are more likely to see positive health effects,” he said.  

Lifestyle changes to improve cardiovascular outcomes are usually more likely to be required at 40 or 50 years old than at younger ages. He also noted that metabolic markers tend to show clear improvement at around 3 months after adopting a particular diet but improvements in disease outcomes take a lot longer to become evident.

Dr. Celis-Morales and his team are currently conducting a further analysis to understand if the vegetarian diet is also associated with a lower risk of cancer, depression, and dementia, compared with meat-eaters.

Dr. Celis-Morales, Dr. Mathers, and Dr. Gallegos have reported no relevant financial relationships.

A version of this article first appeared on Medscape.com.

The U.S. Food and Drug Administration has cleared the Bigfoot Unity Diabetes Management System, a cap device that connects to insulin pens and translates continuous glucose data into dosing recommendations, for use in individuals aged 12 and older.

The Bigfoot Unity System has three primary components – proprietary smart pen caps for both rapid- and long-acting insulin, a mobile app, and an integrated FreeStyle Libre 2 continuous glucose monitor (iCGM) sensor, which was FDA-cleared in June 2020 – that fit into the person’s dose-decision process when they need it throughout the day.

It allows the user to scan the FreeStyle Libre 2 sensor, displaying the user’s current glucose value, trend arrow, and recommended correction dose. The smart pen cap also directly displays the health care provider’s suggested meal insulin doses with the correction dose. In just a few steps the system gives the person with diabetes support to make real-time treatment decisions.

It also includes hypoglycemia alerts and is compatible with all major U.S. brands of rapid- and long-acting disposable insulin pens.  

Health care providers can monitor the patient’s data through a secure web portal called the Bigfoot Clinic Hub.

JDRF said in a statement it “applauds the U.S. FDA on its decision to provide clearance for the Bigfoot Unity Diabetes Management by Bigfoot Biomedical.”

The new system “fills a critical gap and brings benefits of automation and device interconnectedness to people with diabetes who rely on multiple daily injections to manage their blood sugar levels.” It is a “win for both the type 1 and type 2 diabetes communities as it broadens the options of treatment to alleviate daily burdens.”
 

Growing market for smart insulin pens

The device is the latest advance in the “smart pen” field of semiautomated insulin delivery in which pen and compatible devices, software, and platforms are teamed up in various combinations to provide easier insulin dosing for patients with diabetes who require multiple daily injections but don’t wear insulin pumps.

On May 6, 2021, Eli Lilly announced it had signed “strategic international agreements” with Dexcom, Glooko, MyDiabby Healthcare, and Roche to provide platforms or devices compatible with Lilly’s prefilled Tempo Pen, which is already available in several global markets, and the Tempo Smart Button, currently in late-stage development and pending CE mark.  

And in November 2020, Medtronic launched a new version of its smart insulin pen with integrated CGM called the InPen. The reusable insulin injector pen uses a smartphone app to calculate dosing of short-acting insulin based on CGM readings and allows users to view glucose readings and insulin dose information. It was originally launched in 2017 by Companion Medical, and the company was acquired by Medtronic in September 2020.

Novo Nordisk and Sanofi are also developing products in the smart pen space.

More information about the Bigfoot Unity Program is available here.

A version of this article first appeared on Medscape.com.

The U.S. Food and Drug Administration has cleared the Bigfoot Unity Diabetes Management System, a cap device that connects to insulin pens and translates continuous glucose data into dosing recommendations, for use in individuals aged 12 and older.

The Bigfoot Unity System has three primary components – proprietary smart pen caps for both rapid- and long-acting insulin, a mobile app, and an integrated FreeStyle Libre 2 continuous glucose monitor (iCGM) sensor, which was FDA-cleared in June 2020 – that fit into the person’s dose-decision process when they need it throughout the day.

It allows the user to scan the FreeStyle Libre 2 sensor, displaying the user’s current glucose value, trend arrow, and recommended correction dose. The smart pen cap also directly displays the health care provider’s suggested meal insulin doses with the correction dose. In just a few steps the system gives the person with diabetes support to make real-time treatment decisions.

It also includes hypoglycemia alerts and is compatible with all major U.S. brands of rapid- and long-acting disposable insulin pens.  

Health care providers can monitor the patient’s data through a secure web portal called the Bigfoot Clinic Hub.

JDRF said in a statement it “applauds the U.S. FDA on its decision to provide clearance for the Bigfoot Unity Diabetes Management by Bigfoot Biomedical.”

The new system “fills a critical gap and brings benefits of automation and device interconnectedness to people with diabetes who rely on multiple daily injections to manage their blood sugar levels.” It is a “win for both the type 1 and type 2 diabetes communities as it broadens the options of treatment to alleviate daily burdens.”
 

Growing market for smart insulin pens

The device is the latest advance in the “smart pen” field of semiautomated insulin delivery in which pen and compatible devices, software, and platforms are teamed up in various combinations to provide easier insulin dosing for patients with diabetes who require multiple daily injections but don’t wear insulin pumps.

On May 6, 2021, Eli Lilly announced it had signed “strategic international agreements” with Dexcom, Glooko, MyDiabby Healthcare, and Roche to provide platforms or devices compatible with Lilly’s prefilled Tempo Pen, which is already available in several global markets, and the Tempo Smart Button, currently in late-stage development and pending CE mark.  

And in November 2020, Medtronic launched a new version of its smart insulin pen with integrated CGM called the InPen. The reusable insulin injector pen uses a smartphone app to calculate dosing of short-acting insulin based on CGM readings and allows users to view glucose readings and insulin dose information. It was originally launched in 2017 by Companion Medical, and the company was acquired by Medtronic in September 2020.

Novo Nordisk and Sanofi are also developing products in the smart pen space.

More information about the Bigfoot Unity Program is available here.

A version of this article first appeared on Medscape.com.

The U.S. Food and Drug Administration has cleared the Bigfoot Unity Diabetes Management System, a cap device that connects to insulin pens and translates continuous glucose data into dosing recommendations, for use in individuals aged 12 and older.

The Bigfoot Unity System has three primary components – proprietary smart pen caps for both rapid- and long-acting insulin, a mobile app, and an integrated FreeStyle Libre 2 continuous glucose monitor (iCGM) sensor, which was FDA-cleared in June 2020 – that fit into the person’s dose-decision process when they need it throughout the day.

It allows the user to scan the FreeStyle Libre 2 sensor, displaying the user’s current glucose value, trend arrow, and recommended correction dose. The smart pen cap also directly displays the health care provider’s suggested meal insulin doses with the correction dose. In just a few steps the system gives the person with diabetes support to make real-time treatment decisions.

It also includes hypoglycemia alerts and is compatible with all major U.S. brands of rapid- and long-acting disposable insulin pens.  

Health care providers can monitor the patient’s data through a secure web portal called the Bigfoot Clinic Hub.

JDRF said in a statement it “applauds the U.S. FDA on its decision to provide clearance for the Bigfoot Unity Diabetes Management by Bigfoot Biomedical.”

The new system “fills a critical gap and brings benefits of automation and device interconnectedness to people with diabetes who rely on multiple daily injections to manage their blood sugar levels.” It is a “win for both the type 1 and type 2 diabetes communities as it broadens the options of treatment to alleviate daily burdens.”
 

Growing market for smart insulin pens

The device is the latest advance in the “smart pen” field of semiautomated insulin delivery in which pen and compatible devices, software, and platforms are teamed up in various combinations to provide easier insulin dosing for patients with diabetes who require multiple daily injections but don’t wear insulin pumps.

On May 6, 2021, Eli Lilly announced it had signed “strategic international agreements” with Dexcom, Glooko, MyDiabby Healthcare, and Roche to provide platforms or devices compatible with Lilly’s prefilled Tempo Pen, which is already available in several global markets, and the Tempo Smart Button, currently in late-stage development and pending CE mark.  

And in November 2020, Medtronic launched a new version of its smart insulin pen with integrated CGM called the InPen. The reusable insulin injector pen uses a smartphone app to calculate dosing of short-acting insulin based on CGM readings and allows users to view glucose readings and insulin dose information. It was originally launched in 2017 by Companion Medical, and the company was acquired by Medtronic in September 2020.

Novo Nordisk and Sanofi are also developing products in the smart pen space.

More information about the Bigfoot Unity Program is available here.

A version of this article first appeared on Medscape.com.

In 2016, results from the LEADER trial of liraglutide in patients with type 2 diabetes helped jump-start awareness of the potential role of this new class of drugs, the glucagonlike peptide–1 receptor agonists, for reducing cardiovascular events. The randomized, placebo-controlled trial enrolled more than 9000 patients at more than 400 sites in over 30 countries, and took nearly 6 years from the start of patient enrollment to publication of the landmark results.

In December 2020, an independent team of researchers published results from a study with a design identical to LEADER, but used data that came not from a massive, global, years-long trial but from already-existing numbers culled from three large U.S. insurance claim databases. The result of this emulation using real-world data was virtually identical to what the actual trial showed, replicating both the direction and statistical significance of the original finding of the randomized, controlled trial (RCT).

What if research proved that this sort of RCT emulation could reliably be done on a regular basis? What might it mean for regulatory decisions on drugs and devices that historically have been based entirely on efficacy evidence from RCTs?
 

Making the most of a sea of observational data

Medicine in the United States has become increasingly awash in a sea of observational data collected from sources that include electronic health records, insurance claims, and increasingly, personal-health monitoring devices.

The Food and Drug Administration is now in the process of trying to figure out how it can legitimately harness this tsunami of real-world data to make efficacy decisions, essentially creating a new category of evidence to complement traditional data from randomized trials. It’s an opportunity that agency staff and their outside advisors have been keen to seize, especially given the soaring cost of prospective, randomized trials.

Recognition of this untapped resource in part led to a key initiative, among many others, included in the 21st Century Cures Act, passed in December 2016. Among the Act’s mandates was that, by the end of 2021, the FDA would issue guidance on when drug sponsors could use real-world evidence (RWE) to either help support a new indication for an already approved drug or help satisfy postapproval study requirements.

The initiative recognizes that this approach is not appropriate for initial drug approvals, which remain exclusively reliant on evidence from RCTs. Instead, it seems best suited to support expanding indications for already approved drugs.

Although FDA staff have made progress in identifying the challenges and broadening their understanding of how to best handle real-world data that come from observing patients in routine practice, agency leaders stress that this complex issue will likely not be fully resolved by their guidance to be published later this year. The FDA released a draft of the guidance in May 2019.
 

Can RWE be ‘credible and reliable?’

“Whether observational, nonrandomized data can become credible enough to use is what we’re talking about. These are possibilities that need to be explained and better understood,” said Robert Temple, MD, deputy director for clinical science of the FDA Center for Drug Evaluation and Research.

“Since the 1970s, the FDA has recognized historical controls as legitimate, so it’s possible [for RWE] to be credible. The big test is when is it credible and reliable enough [to assess efficacy]?” wondered Dr. Temple during a 2-day workshop on the topic held mid-February and organized by Duke University’s Margolis Center for Health Policy.

“We’re approaching an inflection point regarding how observational studies are generated and used, but our evidentiary standards will not lower, and it will be a case-by-case decision” by the agency as they review future RWE submissions, said John Concato, MD, the FDA’s associate director for real-world evidence, during the workshop.

“We are working toward guidance development, but also looking down the road to what we need to do to enable this,” said Dr. Concato. “It’s a complicated issue. If it was easy, it would have already been fixed.” He added that the agency will likely release a “portfolio” of guidance for submitting real-world data and RWE. Real-world data are raw information that, when analyzed, become RWE.

In short, the FDA seems headed toward guidance that won’t spell out a pathway that guarantees success using RWE but will at least open the door to consideration of this unprecedented application.
 

Not like flipping a switch

The guidance will not activate acceptance of RWE all at once. “It’s not like a light switch,” cautioned Adam Kroetsch, MPP, research director for biomedical innovation and regulatory policy at Duke-Margolis in Washington, D.C. “It’s an evolutionary process,” and the upcoming guidance will provide “just a little more clarity” on what sorts of best practices using RWE the FDA will find persuasive. “It’s hard for the FDA to clearly say what it’s looking for until they see some good examples,” Dr. Kroetsch said in an interview.

What will change is that drug sponsors can submit using RWE, and the FDA “will have a more open-minded view,” predicted Sebastian Schneeweiss, MD, ScD, a workshop participant and chief of pharmacoepidemiology and pharmacoeconomics at Brigham and Women’s Hospital in Boston. “For the first time, a law required [the FDA] to take a serious look” at observational data for efficacy assessment.

“The FDA has had a bias against using RWE for evidence of efficacy but has long used it to understand drug safety. Now the FDA is trying to wrap its arms around how to best use RWE” for efficacy decisions, said Joseph S. Ross, MD, another workshop participant and professor of medicine and public health at Yale University, New Haven, Conn.

The agency’s cautious approach is reassuring, Dr. Ross noted in an interview. “There was worry that the 21st Century Cures Act would open the door to allowing real-world data to be used in ways that weren’t very reliable. Very quickly, the FDA started trying to figure out the best ways to use these data in reasonable ways.”
 

Duplicating RCTs with RWE

To help better understand the potential use of RWE, the FDA sponsored several demonstration projects. Researchers presented results from three of these projects during the workshop in February. All three examined whether RWE, plugged into the design of an actual RCT, can produce roughly similar results when similar patients are used.

A generally consistent finding from the three demonstration projects was that “when the data are fit for purpose” the emulated or duplicated analyses with RWE “can come to similar conclusions” as the actual RCTs, said Dr. Schneeweiss, who leads one of the demonstration projects, RCT DUPLICATE.

At the workshop he reported results from RWE duplications of 20 different RCTs using insurance claims data from U.S. patients. The findings came from 10 duplications already reported in Circulation in December 2020 (including a duplication of the LEADER trial), and an additional 10 as yet unpublished RCT duplications. In the next few months, the researchers intend to assess a final group of 10 more RCT duplications.

Workshop participants also presented results from two other FDA demonstration projects: the OPERAND program run by the Multi-Regional Clinical Trials Center of Brigham and Women’s Hospital and Harvard; and the CERSI program based at Yale and the Mayo Clinic in Rochester, Minn. Both are smaller in scale than RCT DUPLICATE, incorporate lab data in addition to claims data, and in some cases test how well RWE can emulate RCTs that are not yet completed.

Collectively, results from these demonstration projects suggest that RWE can successfully emulate the results of an RCT, said Dr. Ross, a coinvestigator on the CERSI study. But the CERSI findings also highlighted how an RCT can fall short of clinical relevance.

“One of our most important findings was that RCTs don’t always represent real-world practice,” he said. His group attempted to replicate the 5,000-patient GRADE trial of four different drug options added to metformin in patients with type 2 diabetes. One of the four options included insulin glargine (Lantus), and the attempt to emulate the study with RWE hit the bump that no relevant real-world patients in their US claims database actually received the formulation.

That means the GRADE trial “is almost meaningless. It doesn’t reflect real-world practice,” Dr. Ross noted.

Results from the three demonstration projects “highlight the gaps we still have,” summed up Dr. Kroetsch. “They show where we need better data” from observational sources that function as well as data from RCTs.

Still, the demonstration project results are “an important step forward in establishing the validity of real-world evidence,” commented David Kerr, MBChB, an endocrinologist and director of research and innovation at the Sansum Diabetes Research Institute in Santa Barbara, Calif.
 

‘Target trials’ tether RWE

The target trial approach to designing an observational study is a key tool for boosting reliability and applicability of the results. The idea is to create a well-designed trial that could be the basis for a conventional RCT, and then use observational data to flesh out the target trial instead of collecting data from prospectively enrolled patients.

Designing observational studies that emulate target trials allows causal inferences, said Miguel A. Hernán, MD, DrPH, a professor of biostatistics and epidemiology at the Harvard School of Public Health, Boston. Plugging real-world data into the framework of an appropriately designed target trial substantially cuts the risk of a biased analysis, he explained during the workshop.

However, the approach has limitations. The target trial must be a pragmatic trial, and the approach does not work for placebo-controlled trials, although it can accommodate a usual-care control arm. It also usually precludes patient blinding, testing treatments not used in routine practice, and close monitoring of patients in ways that are uncommon in usual care.

The target trial approach received broad endorsement during the workshop as the future for observational studies destined for efficacy consideration by the FDA.

“The idea of prespecifying a target trial is a really fantastic place to start,” commented Robert Ball, MD, deputy director of the FDA Office of Surveillance and Epidemiology. “There is still a whole set of questions once the trial is prespecified, but prespecification would be a fantastic step forward,” he said during the workshop.

Participants also endorsed other important steps to boost the value of observational studies for regulatory reviews, including preregistering the study on a site such as clinicaltrials.gov; being fully transparent about the origins of observational data; using data that match the needs of the target trial; not reviewing the data in advance to avoid cherry picking and gaming the analysis; and reporting neutral or negative results when they occur, something often not currently done for observational analyses.

But although there was clear progress and much agreement among thought leaders at the workshop, FDA representatives stressed caution in moving forward.
 

“No easy answer”

“With more experience, we can learn what works and what doesn’t work in generating valid results from observational studies,” said Dr. Concato. “Although the observational results have upside potential, we need to learn more. There is no easy answer, no checklist for fit-for-use data, no off-the-shelf study design, and no ideal analytic method.”

Dr. Concato acknowledged that the FDA’s goal is clear given the 2016 legislation. “The FDA is embracing our obligations under the 21st Century Cures Act to evaluate use of real-world data and real-world evidence.”

He also suggested that researchers “shy away from a false dichotomy of RCTs or observational studies and instead think about how and when RCTs and observational studies can be designed and conducted to yield trustworthy results.” Dr. Concato’s solution: “a taxonomy of interventional or noninterventional studies.”

“The FDA is under enormous pressure to embrace real-world evidence, both because of the economics of running RCTs and because of the availability of new observational data from electronic health records, wearable devices, claims, etc.,” said Dr. Kerr, who did not participate in the workshop but coauthored an editorial that calls for using real-world data in regulatory decisions for drugs and devices for diabetes. These factors create an “irresistible force” spurring the FDA to consider observational, noninterventional data.

“I think the FDA really wants this to go forward,” Dr. Kerr added in an interview. “The FDA keeps telling us that clinical trials do not have enough women or patients from minority groups. Real-world data is a way to address that. This will not be the death of RCTs, but this work shines a light on the deficiencies of RCTs and how the deficiencies can be dealt with.”

Dr. Kroetsch has reported no relevant financial relationships. Dr. Schneeweiss has reported being a consultant to and holding equity in Aetion and receiving research funding from the FDA. Dr. Ross has reported receiving research funding from the FDA, Johnson & Johnson, and Medtronic. Dr. Hernán has reported being a consultant for Cytel. Dr. Kerr has reported being a consultant for Ascensia, EOFlow, Lifecare, Merck, Novo Nordisk, Roche Diagnostics, and Voluntis. Dr. Temple, Dr. Concato, and Dr. Ball are FDA employees.

A version of this article first appeared on Medscape.com.

In 2016, results from the LEADER trial of liraglutide in patients with type 2 diabetes helped jump-start awareness of the potential role of this new class of drugs, the glucagonlike peptide–1 receptor agonists, for reducing cardiovascular events. The randomized, placebo-controlled trial enrolled more than 9000 patients at more than 400 sites in over 30 countries, and took nearly 6 years from the start of patient enrollment to publication of the landmark results.

In December 2020, an independent team of researchers published results from a study with a design identical to LEADER, but used data that came not from a massive, global, years-long trial but from already-existing numbers culled from three large U.S. insurance claim databases. The result of this emulation using real-world data was virtually identical to what the actual trial showed, replicating both the direction and statistical significance of the original finding of the randomized, controlled trial (RCT).

What if research proved that this sort of RCT emulation could reliably be done on a regular basis? What might it mean for regulatory decisions on drugs and devices that historically have been based entirely on efficacy evidence from RCTs?
 

Making the most of a sea of observational data

Medicine in the United States has become increasingly awash in a sea of observational data collected from sources that include electronic health records, insurance claims, and increasingly, personal-health monitoring devices.

The Food and Drug Administration is now in the process of trying to figure out how it can legitimately harness this tsunami of real-world data to make efficacy decisions, essentially creating a new category of evidence to complement traditional data from randomized trials. It’s an opportunity that agency staff and their outside advisors have been keen to seize, especially given the soaring cost of prospective, randomized trials.

Recognition of this untapped resource in part led to a key initiative, among many others, included in the 21st Century Cures Act, passed in December 2016. Among the Act’s mandates was that, by the end of 2021, the FDA would issue guidance on when drug sponsors could use real-world evidence (RWE) to either help support a new indication for an already approved drug or help satisfy postapproval study requirements.

The initiative recognizes that this approach is not appropriate for initial drug approvals, which remain exclusively reliant on evidence from RCTs. Instead, it seems best suited to support expanding indications for already approved drugs.

Although FDA staff have made progress in identifying the challenges and broadening their understanding of how to best handle real-world data that come from observing patients in routine practice, agency leaders stress that this complex issue will likely not be fully resolved by their guidance to be published later this year. The FDA released a draft of the guidance in May 2019.
 

Can RWE be ‘credible and reliable?’

“Whether observational, nonrandomized data can become credible enough to use is what we’re talking about. These are possibilities that need to be explained and better understood,” said Robert Temple, MD, deputy director for clinical science of the FDA Center for Drug Evaluation and Research.

“Since the 1970s, the FDA has recognized historical controls as legitimate, so it’s possible [for RWE] to be credible. The big test is when is it credible and reliable enough [to assess efficacy]?” wondered Dr. Temple during a 2-day workshop on the topic held mid-February and organized by Duke University’s Margolis Center for Health Policy.

“We’re approaching an inflection point regarding how observational studies are generated and used, but our evidentiary standards will not lower, and it will be a case-by-case decision” by the agency as they review future RWE submissions, said John Concato, MD, the FDA’s associate director for real-world evidence, during the workshop.

“We are working toward guidance development, but also looking down the road to what we need to do to enable this,” said Dr. Concato. “It’s a complicated issue. If it was easy, it would have already been fixed.” He added that the agency will likely release a “portfolio” of guidance for submitting real-world data and RWE. Real-world data are raw information that, when analyzed, become RWE.

In short, the FDA seems headed toward guidance that won’t spell out a pathway that guarantees success using RWE but will at least open the door to consideration of this unprecedented application.
 

Not like flipping a switch

The guidance will not activate acceptance of RWE all at once. “It’s not like a light switch,” cautioned Adam Kroetsch, MPP, research director for biomedical innovation and regulatory policy at Duke-Margolis in Washington, D.C. “It’s an evolutionary process,” and the upcoming guidance will provide “just a little more clarity” on what sorts of best practices using RWE the FDA will find persuasive. “It’s hard for the FDA to clearly say what it’s looking for until they see some good examples,” Dr. Kroetsch said in an interview.

What will change is that drug sponsors can submit using RWE, and the FDA “will have a more open-minded view,” predicted Sebastian Schneeweiss, MD, ScD, a workshop participant and chief of pharmacoepidemiology and pharmacoeconomics at Brigham and Women’s Hospital in Boston. “For the first time, a law required [the FDA] to take a serious look” at observational data for efficacy assessment.

“The FDA has had a bias against using RWE for evidence of efficacy but has long used it to understand drug safety. Now the FDA is trying to wrap its arms around how to best use RWE” for efficacy decisions, said Joseph S. Ross, MD, another workshop participant and professor of medicine and public health at Yale University, New Haven, Conn.

The agency’s cautious approach is reassuring, Dr. Ross noted in an interview. “There was worry that the 21st Century Cures Act would open the door to allowing real-world data to be used in ways that weren’t very reliable. Very quickly, the FDA started trying to figure out the best ways to use these data in reasonable ways.”
 

Duplicating RCTs with RWE

To help better understand the potential use of RWE, the FDA sponsored several demonstration projects. Researchers presented results from three of these projects during the workshop in February. All three examined whether RWE, plugged into the design of an actual RCT, can produce roughly similar results when similar patients are used.

A generally consistent finding from the three demonstration projects was that “when the data are fit for purpose” the emulated or duplicated analyses with RWE “can come to similar conclusions” as the actual RCTs, said Dr. Schneeweiss, who leads one of the demonstration projects, RCT DUPLICATE.

At the workshop he reported results from RWE duplications of 20 different RCTs using insurance claims data from U.S. patients. The findings came from 10 duplications already reported in Circulation in December 2020 (including a duplication of the LEADER trial), and an additional 10 as yet unpublished RCT duplications. In the next few months, the researchers intend to assess a final group of 10 more RCT duplications.

Workshop participants also presented results from two other FDA demonstration projects: the OPERAND program run by the Multi-Regional Clinical Trials Center of Brigham and Women’s Hospital and Harvard; and the CERSI program based at Yale and the Mayo Clinic in Rochester, Minn. Both are smaller in scale than RCT DUPLICATE, incorporate lab data in addition to claims data, and in some cases test how well RWE can emulate RCTs that are not yet completed.

Collectively, results from these demonstration projects suggest that RWE can successfully emulate the results of an RCT, said Dr. Ross, a coinvestigator on the CERSI study. But the CERSI findings also highlighted how an RCT can fall short of clinical relevance.

“One of our most important findings was that RCTs don’t always represent real-world practice,” he said. His group attempted to replicate the 5,000-patient GRADE trial of four different drug options added to metformin in patients with type 2 diabetes. One of the four options included insulin glargine (Lantus), and the attempt to emulate the study with RWE hit the bump that no relevant real-world patients in their US claims database actually received the formulation.

That means the GRADE trial “is almost meaningless. It doesn’t reflect real-world practice,” Dr. Ross noted.

Results from the three demonstration projects “highlight the gaps we still have,” summed up Dr. Kroetsch. “They show where we need better data” from observational sources that function as well as data from RCTs.

Still, the demonstration project results are “an important step forward in establishing the validity of real-world evidence,” commented David Kerr, MBChB, an endocrinologist and director of research and innovation at the Sansum Diabetes Research Institute in Santa Barbara, Calif.
 

‘Target trials’ tether RWE

The target trial approach to designing an observational study is a key tool for boosting reliability and applicability of the results. The idea is to create a well-designed trial that could be the basis for a conventional RCT, and then use observational data to flesh out the target trial instead of collecting data from prospectively enrolled patients.

Designing observational studies that emulate target trials allows causal inferences, said Miguel A. Hernán, MD, DrPH, a professor of biostatistics and epidemiology at the Harvard School of Public Health, Boston. Plugging real-world data into the framework of an appropriately designed target trial substantially cuts the risk of a biased analysis, he explained during the workshop.

However, the approach has limitations. The target trial must be a pragmatic trial, and the approach does not work for placebo-controlled trials, although it can accommodate a usual-care control arm. It also usually precludes patient blinding, testing treatments not used in routine practice, and close monitoring of patients in ways that are uncommon in usual care.

The target trial approach received broad endorsement during the workshop as the future for observational studies destined for efficacy consideration by the FDA.

“The idea of prespecifying a target trial is a really fantastic place to start,” commented Robert Ball, MD, deputy director of the FDA Office of Surveillance and Epidemiology. “There is still a whole set of questions once the trial is prespecified, but prespecification would be a fantastic step forward,” he said during the workshop.

Participants also endorsed other important steps to boost the value of observational studies for regulatory reviews, including preregistering the study on a site such as clinicaltrials.gov; being fully transparent about the origins of observational data; using data that match the needs of the target trial; not reviewing the data in advance to avoid cherry picking and gaming the analysis; and reporting neutral or negative results when they occur, something often not currently done for observational analyses.

But although there was clear progress and much agreement among thought leaders at the workshop, FDA representatives stressed caution in moving forward.
 

“No easy answer”

“With more experience, we can learn what works and what doesn’t work in generating valid results from observational studies,” said Dr. Concato. “Although the observational results have upside potential, we need to learn more. There is no easy answer, no checklist for fit-for-use data, no off-the-shelf study design, and no ideal analytic method.”

Dr. Concato acknowledged that the FDA’s goal is clear given the 2016 legislation. “The FDA is embracing our obligations under the 21st Century Cures Act to evaluate use of real-world data and real-world evidence.”

He also suggested that researchers “shy away from a false dichotomy of RCTs or observational studies and instead think about how and when RCTs and observational studies can be designed and conducted to yield trustworthy results.” Dr. Concato’s solution: “a taxonomy of interventional or noninterventional studies.”

“The FDA is under enormous pressure to embrace real-world evidence, both because of the economics of running RCTs and because of the availability of new observational data from electronic health records, wearable devices, claims, etc.,” said Dr. Kerr, who did not participate in the workshop but coauthored an editorial that calls for using real-world data in regulatory decisions for drugs and devices for diabetes. These factors create an “irresistible force” spurring the FDA to consider observational, noninterventional data.

“I think the FDA really wants this to go forward,” Dr. Kerr added in an interview. “The FDA keeps telling us that clinical trials do not have enough women or patients from minority groups. Real-world data is a way to address that. This will not be the death of RCTs, but this work shines a light on the deficiencies of RCTs and how the deficiencies can be dealt with.”

Dr. Kroetsch has reported no relevant financial relationships. Dr. Schneeweiss has reported being a consultant to and holding equity in Aetion and receiving research funding from the FDA. Dr. Ross has reported receiving research funding from the FDA, Johnson & Johnson, and Medtronic. Dr. Hernán has reported being a consultant for Cytel. Dr. Kerr has reported being a consultant for Ascensia, EOFlow, Lifecare, Merck, Novo Nordisk, Roche Diagnostics, and Voluntis. Dr. Temple, Dr. Concato, and Dr. Ball are FDA employees.

A version of this article first appeared on Medscape.com.

In 2016, results from the LEADER trial of liraglutide in patients with type 2 diabetes helped jump-start awareness of the potential role of this new class of drugs, the glucagonlike peptide–1 receptor agonists, for reducing cardiovascular events. The randomized, placebo-controlled trial enrolled more than 9000 patients at more than 400 sites in over 30 countries, and took nearly 6 years from the start of patient enrollment to publication of the landmark results.

In December 2020, an independent team of researchers published results from a study with a design identical to LEADER, but used data that came not from a massive, global, years-long trial but from already-existing numbers culled from three large U.S. insurance claim databases. The result of this emulation using real-world data was virtually identical to what the actual trial showed, replicating both the direction and statistical significance of the original finding of the randomized, controlled trial (RCT).

What if research proved that this sort of RCT emulation could reliably be done on a regular basis? What might it mean for regulatory decisions on drugs and devices that historically have been based entirely on efficacy evidence from RCTs?
 

Making the most of a sea of observational data

Medicine in the United States has become increasingly awash in a sea of observational data collected from sources that include electronic health records, insurance claims, and increasingly, personal-health monitoring devices.

The Food and Drug Administration is now in the process of trying to figure out how it can legitimately harness this tsunami of real-world data to make efficacy decisions, essentially creating a new category of evidence to complement traditional data from randomized trials. It’s an opportunity that agency staff and their outside advisors have been keen to seize, especially given the soaring cost of prospective, randomized trials.

Recognition of this untapped resource in part led to a key initiative, among many others, included in the 21st Century Cures Act, passed in December 2016. Among the Act’s mandates was that, by the end of 2021, the FDA would issue guidance on when drug sponsors could use real-world evidence (RWE) to either help support a new indication for an already approved drug or help satisfy postapproval study requirements.

The initiative recognizes that this approach is not appropriate for initial drug approvals, which remain exclusively reliant on evidence from RCTs. Instead, it seems best suited to support expanding indications for already approved drugs.

Although FDA staff have made progress in identifying the challenges and broadening their understanding of how to best handle real-world data that come from observing patients in routine practice, agency leaders stress that this complex issue will likely not be fully resolved by their guidance to be published later this year. The FDA released a draft of the guidance in May 2019.
 

Can RWE be ‘credible and reliable?’

“Whether observational, nonrandomized data can become credible enough to use is what we’re talking about. These are possibilities that need to be explained and better understood,” said Robert Temple, MD, deputy director for clinical science of the FDA Center for Drug Evaluation and Research.

“Since the 1970s, the FDA has recognized historical controls as legitimate, so it’s possible [for RWE] to be credible. The big test is when is it credible and reliable enough [to assess efficacy]?” wondered Dr. Temple during a 2-day workshop on the topic held mid-February and organized by Duke University’s Margolis Center for Health Policy.

“We’re approaching an inflection point regarding how observational studies are generated and used, but our evidentiary standards will not lower, and it will be a case-by-case decision” by the agency as they review future RWE submissions, said John Concato, MD, the FDA’s associate director for real-world evidence, during the workshop.

“We are working toward guidance development, but also looking down the road to what we need to do to enable this,” said Dr. Concato. “It’s a complicated issue. If it was easy, it would have already been fixed.” He added that the agency will likely release a “portfolio” of guidance for submitting real-world data and RWE. Real-world data are raw information that, when analyzed, become RWE.

In short, the FDA seems headed toward guidance that won’t spell out a pathway that guarantees success using RWE but will at least open the door to consideration of this unprecedented application.
 

Not like flipping a switch

The guidance will not activate acceptance of RWE all at once. “It’s not like a light switch,” cautioned Adam Kroetsch, MPP, research director for biomedical innovation and regulatory policy at Duke-Margolis in Washington, D.C. “It’s an evolutionary process,” and the upcoming guidance will provide “just a little more clarity” on what sorts of best practices using RWE the FDA will find persuasive. “It’s hard for the FDA to clearly say what it’s looking for until they see some good examples,” Dr. Kroetsch said in an interview.

What will change is that drug sponsors can submit using RWE, and the FDA “will have a more open-minded view,” predicted Sebastian Schneeweiss, MD, ScD, a workshop participant and chief of pharmacoepidemiology and pharmacoeconomics at Brigham and Women’s Hospital in Boston. “For the first time, a law required [the FDA] to take a serious look” at observational data for efficacy assessment.

“The FDA has had a bias against using RWE for evidence of efficacy but has long used it to understand drug safety. Now the FDA is trying to wrap its arms around how to best use RWE” for efficacy decisions, said Joseph S. Ross, MD, another workshop participant and professor of medicine and public health at Yale University, New Haven, Conn.

The agency’s cautious approach is reassuring, Dr. Ross noted in an interview. “There was worry that the 21st Century Cures Act would open the door to allowing real-world data to be used in ways that weren’t very reliable. Very quickly, the FDA started trying to figure out the best ways to use these data in reasonable ways.”
 

Duplicating RCTs with RWE

To help better understand the potential use of RWE, the FDA sponsored several demonstration projects. Researchers presented results from three of these projects during the workshop in February. All three examined whether RWE, plugged into the design of an actual RCT, can produce roughly similar results when similar patients are used.

A generally consistent finding from the three demonstration projects was that “when the data are fit for purpose” the emulated or duplicated analyses with RWE “can come to similar conclusions” as the actual RCTs, said Dr. Schneeweiss, who leads one of the demonstration projects, RCT DUPLICATE.

At the workshop he reported results from RWE duplications of 20 different RCTs using insurance claims data from U.S. patients. The findings came from 10 duplications already reported in Circulation in December 2020 (including a duplication of the LEADER trial), and an additional 10 as yet unpublished RCT duplications. In the next few months, the researchers intend to assess a final group of 10 more RCT duplications.

Workshop participants also presented results from two other FDA demonstration projects: the OPERAND program run by the Multi-Regional Clinical Trials Center of Brigham and Women’s Hospital and Harvard; and the CERSI program based at Yale and the Mayo Clinic in Rochester, Minn. Both are smaller in scale than RCT DUPLICATE, incorporate lab data in addition to claims data, and in some cases test how well RWE can emulate RCTs that are not yet completed.

Collectively, results from these demonstration projects suggest that RWE can successfully emulate the results of an RCT, said Dr. Ross, a coinvestigator on the CERSI study. But the CERSI findings also highlighted how an RCT can fall short of clinical relevance.

“One of our most important findings was that RCTs don’t always represent real-world practice,” he said. His group attempted to replicate the 5,000-patient GRADE trial of four different drug options added to metformin in patients with type 2 diabetes. One of the four options included insulin glargine (Lantus), and the attempt to emulate the study with RWE hit the bump that no relevant real-world patients in their US claims database actually received the formulation.

That means the GRADE trial “is almost meaningless. It doesn’t reflect real-world practice,” Dr. Ross noted.

Results from the three demonstration projects “highlight the gaps we still have,” summed up Dr. Kroetsch. “They show where we need better data” from observational sources that function as well as data from RCTs.

Still, the demonstration project results are “an important step forward in establishing the validity of real-world evidence,” commented David Kerr, MBChB, an endocrinologist and director of research and innovation at the Sansum Diabetes Research Institute in Santa Barbara, Calif.
 

‘Target trials’ tether RWE

The target trial approach to designing an observational study is a key tool for boosting reliability and applicability of the results. The idea is to create a well-designed trial that could be the basis for a conventional RCT, and then use observational data to flesh out the target trial instead of collecting data from prospectively enrolled patients.

Designing observational studies that emulate target trials allows causal inferences, said Miguel A. Hernán, MD, DrPH, a professor of biostatistics and epidemiology at the Harvard School of Public Health, Boston. Plugging real-world data into the framework of an appropriately designed target trial substantially cuts the risk of a biased analysis, he explained during the workshop.

However, the approach has limitations. The target trial must be a pragmatic trial, and the approach does not work for placebo-controlled trials, although it can accommodate a usual-care control arm. It also usually precludes patient blinding, testing treatments not used in routine practice, and close monitoring of patients in ways that are uncommon in usual care.

The target trial approach received broad endorsement during the workshop as the future for observational studies destined for efficacy consideration by the FDA.

“The idea of prespecifying a target trial is a really fantastic place to start,” commented Robert Ball, MD, deputy director of the FDA Office of Surveillance and Epidemiology. “There is still a whole set of questions once the trial is prespecified, but prespecification would be a fantastic step forward,” he said during the workshop.

Participants also endorsed other important steps to boost the value of observational studies for regulatory reviews, including preregistering the study on a site such as clinicaltrials.gov; being fully transparent about the origins of observational data; using data that match the needs of the target trial; not reviewing the data in advance to avoid cherry picking and gaming the analysis; and reporting neutral or negative results when they occur, something often not currently done for observational analyses.

But although there was clear progress and much agreement among thought leaders at the workshop, FDA representatives stressed caution in moving forward.
 

“No easy answer”

“With more experience, we can learn what works and what doesn’t work in generating valid results from observational studies,” said Dr. Concato. “Although the observational results have upside potential, we need to learn more. There is no easy answer, no checklist for fit-for-use data, no off-the-shelf study design, and no ideal analytic method.”

Dr. Concato acknowledged that the FDA’s goal is clear given the 2016 legislation. “The FDA is embracing our obligations under the 21st Century Cures Act to evaluate use of real-world data and real-world evidence.”

He also suggested that researchers “shy away from a false dichotomy of RCTs or observational studies and instead think about how and when RCTs and observational studies can be designed and conducted to yield trustworthy results.” Dr. Concato’s solution: “a taxonomy of interventional or noninterventional studies.”

“The FDA is under enormous pressure to embrace real-world evidence, both because of the economics of running RCTs and because of the availability of new observational data from electronic health records, wearable devices, claims, etc.,” said Dr. Kerr, who did not participate in the workshop but coauthored an editorial that calls for using real-world data in regulatory decisions for drugs and devices for diabetes. These factors create an “irresistible force” spurring the FDA to consider observational, noninterventional data.

“I think the FDA really wants this to go forward,” Dr. Kerr added in an interview. “The FDA keeps telling us that clinical trials do not have enough women or patients from minority groups. Real-world data is a way to address that. This will not be the death of RCTs, but this work shines a light on the deficiencies of RCTs and how the deficiencies can be dealt with.”

Dr. Kroetsch has reported no relevant financial relationships. Dr. Schneeweiss has reported being a consultant to and holding equity in Aetion and receiving research funding from the FDA. Dr. Ross has reported receiving research funding from the FDA, Johnson & Johnson, and Medtronic. Dr. Hernán has reported being a consultant for Cytel. Dr. Kerr has reported being a consultant for Ascensia, EOFlow, Lifecare, Merck, Novo Nordisk, Roche Diagnostics, and Voluntis. Dr. Temple, Dr. Concato, and Dr. Ball are FDA employees.

A version of this article first appeared on Medscape.com.

Finerenone, an investigational agent from a new drug class, just scored a second pivotal trial win after showing significant benefit for slowing progression of diabetic kidney disease in patients with type 2 diabetes in the FIDELIO-DKD pivotal trial with more than 5,700 patients.

Top-line results from FIGARO-DKD showed significant benefit for the primary endpoint of cardiovascular death and nonfatal cardiovascular disease endpoints in a placebo-controlled trial with about 7,400 patients with type 2 diabetes, reported Bayer, the company developing finerenone in statement released on May 10, 2021.

Based on the FIDELIO-DKD results, finerenone is currently under review by the U.S. Food and Drug Administration for marketing approval as a treatment for patients with type 2 diabetes and chronic kidney disease. FIDELIO-DKD, in addition to the primary endpoint that focused on slowing progression of diabetic kidney disease, had a secondary endpoint that assessed the combined incidence on treatment of cardiovascular death, or nonfatal episodes of stroke, MI, or hospitalization for heart failure. Results from the study published in 2020 in the New England Journal of Medicine showed that finerenone was safe and effective for both endpoints.

In the current study, FIGARO-DKD, run at more than 1,000 sites in 47 countries, these endpoints flipped. The primary outcome was a composite of cardiovascular death or nonfatal cardiovascular disease events, and the secondary outcome was prevention of DKD progression.

Other than stating the results significantly fulfilled FIGARO-DKD’s primary endpoint of reducing the incidence of combined cardiovascular disease endpoints, the release gave no further outcome details. The release noted that the enrolled patient cohort in FIGARO-DKD included more patients with earlier-stage chronic kidney disease, compared with FIDELIO-DKD.

Finerenone is a first-in-class investigational nonsteroidal, selective mineralocorticoid receptor antagonist (MRA). As an MRA it shares certain activities with the steroidal MRAs spironolactone and eplerenone. But the absence of a steroidal structure means that finerenone does not cause steroidal adverse effects such as gynecomastia. Results in FIDELIO-DKD showed that finerenone caused more hyperkalemia than placebo, but the level of hyperkalemia that it causes relative to spironolactone or eplerenone remains uncertain.

[email protected]

Finerenone, an investigational agent from a new drug class, just scored a second pivotal trial win after showing significant benefit for slowing progression of diabetic kidney disease in patients with type 2 diabetes in the FIDELIO-DKD pivotal trial with more than 5,700 patients.

Top-line results from FIGARO-DKD showed significant benefit for the primary endpoint of cardiovascular death and nonfatal cardiovascular disease endpoints in a placebo-controlled trial with about 7,400 patients with type 2 diabetes, reported Bayer, the company developing finerenone in statement released on May 10, 2021.

Based on the FIDELIO-DKD results, finerenone is currently under review by the U.S. Food and Drug Administration for marketing approval as a treatment for patients with type 2 diabetes and chronic kidney disease. FIDELIO-DKD, in addition to the primary endpoint that focused on slowing progression of diabetic kidney disease, had a secondary endpoint that assessed the combined incidence on treatment of cardiovascular death, or nonfatal episodes of stroke, MI, or hospitalization for heart failure. Results from the study published in 2020 in the New England Journal of Medicine showed that finerenone was safe and effective for both endpoints.

In the current study, FIGARO-DKD, run at more than 1,000 sites in 47 countries, these endpoints flipped. The primary outcome was a composite of cardiovascular death or nonfatal cardiovascular disease events, and the secondary outcome was prevention of DKD progression.

Other than stating the results significantly fulfilled FIGARO-DKD’s primary endpoint of reducing the incidence of combined cardiovascular disease endpoints, the release gave no further outcome details. The release noted that the enrolled patient cohort in FIGARO-DKD included more patients with earlier-stage chronic kidney disease, compared with FIDELIO-DKD.

Finerenone is a first-in-class investigational nonsteroidal, selective mineralocorticoid receptor antagonist (MRA). As an MRA it shares certain activities with the steroidal MRAs spironolactone and eplerenone. But the absence of a steroidal structure means that finerenone does not cause steroidal adverse effects such as gynecomastia. Results in FIDELIO-DKD showed that finerenone caused more hyperkalemia than placebo, but the level of hyperkalemia that it causes relative to spironolactone or eplerenone remains uncertain.

[email protected]

Finerenone, an investigational agent from a new drug class, just scored a second pivotal trial win after showing significant benefit for slowing progression of diabetic kidney disease in patients with type 2 diabetes in the FIDELIO-DKD pivotal trial with more than 5,700 patients.

Top-line results from FIGARO-DKD showed significant benefit for the primary endpoint of cardiovascular death and nonfatal cardiovascular disease endpoints in a placebo-controlled trial with about 7,400 patients with type 2 diabetes, reported Bayer, the company developing finerenone in statement released on May 10, 2021.

Based on the FIDELIO-DKD results, finerenone is currently under review by the U.S. Food and Drug Administration for marketing approval as a treatment for patients with type 2 diabetes and chronic kidney disease. FIDELIO-DKD, in addition to the primary endpoint that focused on slowing progression of diabetic kidney disease, had a secondary endpoint that assessed the combined incidence on treatment of cardiovascular death, or nonfatal episodes of stroke, MI, or hospitalization for heart failure. Results from the study published in 2020 in the New England Journal of Medicine showed that finerenone was safe and effective for both endpoints.

In the current study, FIGARO-DKD, run at more than 1,000 sites in 47 countries, these endpoints flipped. The primary outcome was a composite of cardiovascular death or nonfatal cardiovascular disease events, and the secondary outcome was prevention of DKD progression.

Other than stating the results significantly fulfilled FIGARO-DKD’s primary endpoint of reducing the incidence of combined cardiovascular disease endpoints, the release gave no further outcome details. The release noted that the enrolled patient cohort in FIGARO-DKD included more patients with earlier-stage chronic kidney disease, compared with FIDELIO-DKD.

Finerenone is a first-in-class investigational nonsteroidal, selective mineralocorticoid receptor antagonist (MRA). As an MRA it shares certain activities with the steroidal MRAs spironolactone and eplerenone. But the absence of a steroidal structure means that finerenone does not cause steroidal adverse effects such as gynecomastia. Results in FIDELIO-DKD showed that finerenone caused more hyperkalemia than placebo, but the level of hyperkalemia that it causes relative to spironolactone or eplerenone remains uncertain.

[email protected]

Initiatives targeting hypoglycemia and insulin pen wastage could lead to dramatic cost savings in small community hospitals, new data suggest.

The two projects are part of a dedicated inpatient glucose management service led by Mihail (“Misha”) Zilbermint, MD, one of the few full-time endocrine hospitalists in the United States and one of even fewer who work at a small community hospital.

In 2019, Dr. Zilbermint and colleagues reported that their inpatient glucose management program resulted in a 27% reduction in length of stay and a 10.7% lower 30-day readmission rate. The projected cost savings for the period January 2016 to May 2017 was $953,578.

Dr. Zilbermint’s team has written two new articles that document cost savings for specific elements of the program; namely, a set of hospital-wide hypoglycemia prevention measures, and an initiative that reduced duplicate inpatient insulin pen dispensing.

About 1 in 4 people in U.S. hospitals have diabetes or hyperglycemia. Large academic hospitals have endocrine divisions and training programs, but 85% of people receive care at small community hospitals.

“There are management guidelines, but they’re not always followed ... That’s why I’ve been advocating for endocrine hospitalists to be deployed nationally,” Dr. Zilbermint said. He is chief and director of endocrinology, diabetes, and metabolism at Johns Hopkins Community Physicians at Suburban Hospital, Bethesda, Maryland.

Asked to comment on behalf of the Society of Hospital Medicine (SHM), Greg Maynard, MD, program lead for SHM’s Electronic Quality Improvement Programs, said that Suburban’s overall program goals align with those of the SHM.

“Dedicated inpatient glycemic control teams are very important and desirable to improve the quality and safety of care for inpatients with hyperglycemia and diabetes,” he said.

Regarding specific initiatives, such as those aimed at reducing hypoglycemia and insulin pen wastage, Dr. Maynard said, “All of these are feasible in a wide variety of institutions. The main barrier is getting the institutional support for people to work on these interventions. This series of studies can help spread the word about the positive return on investment.”

Another barrier – the current lack of publicly reported measures or pay-for-performance programs for hypoglycemia prevention and glycemic control – may soon change, added Dr. Maynard, who is also chief quality officer at the University of California, Davis, Medical Center.

“The National Quality Forum has endorsed new measures, and the CDC’s National Healthcare Safety Network is working on ways to augment those measures and embed them into their infrastructure,” he said.

Although SHM doesn’t specifically endorse full-time glycemic control hospitalists over endocrinology-trained glycemic control experts, “certainly hospitalists who accrue added training are very well positioned to be an important part of these interdisciplinary teams,” Dr. Maynard said.
 

‘The nurses were so afraid of hypoglycemia’

Tackling hypoglycemia was Dr. Zilbermint’s first priority when he started the glycemic management program at Suburban in late 2015.

“One of the most common complaints from the nurses was that a lot of their patients had hypoglycemia, especially in the ICU, when patients were placed on insulin infusion protocols ... Every time, the nurse would have to call the attending and ask what to do,” he explains.

In addition, Dr. Zilbermint says, there was no standard for treating hypoglycemia. A nurse in one unit would give two cups of juice, another a 50% dextrose infusion, or another, milk. Even more concerning, “the nurses were so afraid of hypoglycemia they would reflexively discontinue all insulin, including basal.”

So one of the new initiatives, led by Carter Shelton, MSHCM, an administrative fellow at the Medical University of South Carolina, Charleston, was to implement a set of hospital-wide hypoglycemia prevention measures, as described in an article published online April 21 in the Journal of Diabetes Science and Technology.
 

Inpatient hypoglycemia rate was cut nearly in half

This began in 2016, when the multidisciplinary Suburban Hospital Glucose Steering Committee identified four main causes of insulin-induced hypoglycemia (defined as a blood glucose level of ≤70 mg/dL in a patient who had received at least one dose of insulin in the past 24 hours) and devised solutions for each:

1. Lack of a unified hypoglycemia protocol. A formal, evidence-based, nurse-driven treatment protocol with clinical decision support in the electronic medical record was developed. The Suburban team adapted much of the protocol from one that had been recently implemented at the flagship Johns Hopkins Hospital, in Baltimore, Maryland.

According to that protocol, if patients are able to swallow, they are given 15 g or 30 g of carbohydrates in order to achieve a blood glucose level of 50 to 70 mg/dL and <50 mg/dL, respectively. Levels are checked 15 minutes later. Intravenous D50 or glucagon is reserved for patients who can’t swallow.

2. For patients in critical care, the insulin infusion protocol that had been in use set blood glucose targets of 80 to 110 mg/dL, which resulted in hypoglycemia in nearly every patient who received an insulin infusion. This protocol was changed to the currently recommended 140 to 180 mg/dL.

3. Most patients were managed with sliding-scale insulin, an outdated yet still widely used regimen whereby insulin is given based only on current blood glucose without accounting for carbohydrates consumed with meals and not corrected until the subsequent meal. This was changed so that nurses give insulin after the patient has consumed at least 50% of their meal carbohydrates.

4. Lack of hypoglycemia reporting. A glucometrics dashboard – now used throughout the Johns Hopkins system – was adopted to produce daily hypoglycemia reports in the EMR system that could be reviewed by the inpatient glucose management service to track quality metrics and plan further interventions.

Between Jan. 1, 2016, and Sept. 30, 2019, out of a total 49,315 patient-days, there were 2,682 days on which any hypoglycemia occurred and 874 days on which moderate hypoglycemia occurred (≤54 mg/dL). Type 2 diabetes accounted for 84.4% of the total patient-days; type 1 accounted for 4.4%.

The overall frequency of any hypoglycemia patient-days per month decreased from 7.5% to 3.9% during the study period (P = .001). This was significant for the patients with type 2 diabetes (7.4% to 3.8%; P < .0001) but not for those with type 1 diabetes (18.5% to 18.0%; P = .08).

Rates of moderate hypoglycemia also decreased significantly among the patients with type 2 diabetes (1.9% to 1.0%; P = .03) but not for those with type 1 diabetes (7.4% to 6.0%; P = .14).

On the basis of these rates in reducing hypoglycemia, in which the inpatient hypoglycemia rate was cut nearly in half, the estimated savings in cost of care to the hospital was $98,635 during the period of January 2016 to September 2019.
 

Reducing insulin pen waste by minimizing duplicate prescriptions

Suburban Hospital had been using insulin vials and syringes when Dr. Zilbermint first arrived there. He lobbied the administration to allow use of pens, because they’re easier to use and they reduce the risk for needlestick injuries. Nurses were educated and retrained monthly in their use.

The switch to pens – aspart (Novolog Flexpen) for bolus insulin and glargine (Lantus SoloSTAR) – took place in 2018. The cost of the aspart pen was $16.19, and the cost of glargine was $25.08. Each holds 300 units of insulin.

After the first month, the team noticed a large increase in expenses. A quality improvement project was devised to address the issue.

“We were dispensing sometimes three or four pens per person. That’s a lot. Each pen holds 300 units, so one pen should last the entire hospital stay of an average 4- or 5-day stay,” Dr. Zilbermint explained. “We had to figure out where we were bleeding the money and where the pens were going.”

When pens disappeared, the pharmacy would have to dispense new ones. One problem was that when patients were transferred from one unit to another, the pen would be left behind and the room would be cleaned. Sometimes the pens weren’t stored properly or were misplaced. Often, they’d end up in a nurse’s pocket.

The second intervention was led by Urooj Najmi, MD, of the American International School of Medicine, Atlanta, Georgia. A program was instituted to reduce duplicate inpatient insulin pen dispensing, as detailed in an article published in the same issue of the Journal of Diabetes Science and Technology.

Solutions to reduce duplicate pen dispensing included having pharmacy track daily insulin pen reports and monitor duplicate orders, with “do not dispense” instructions conveyed via the EMR system. All multidose medications, including insulin pens, were to be placed in patients’ bins at the nursing station, and nurses were instructed to look for patients’ insulin pens prior to their being transferred to another unit, rather than ask for a replacement pen.

From July 2018 to July 2019, 3,121 patients received insulin, of whom 95% received aspart and 47% received glargine. Of the 9,516 pens dispensed, 68% were for aspart and 32% were for glargine. During the study period, the number of pens dispensed per patient dropped from 2.2 to 1.2 for aspart and from 2.1 to 1.3 for glargine; differences were highly significant (P = .0002 and P = .0005, respectively).

The total amount of unnecessary dispensing during the first 4 months after initiating the pen implementation program was 58%. The average monthly cost was $11,820.68; the projected cost per year was $141,848.

Six months after the waste reduction strategies were implemented, monthly waste had dropped to 42%, translating to an estimated potential cost savings of $66,261 over 12 months.

Because Suburban Hospital doesn’t have an outpatient dispensing license, there is still wastage when patients are discharged, because they can’t take their pens home with them. That remains a challenge, Dr. Zilbermint noted.

The team is working on implementing automatic A1c testing for patients admitted with hyperglycemia who either have a history of diabetes or whose blood glucose level is >140 mg/dL. Dr. Zilbermint said, “it’s in the guidelines, but it’s not always done.”

Dr. Zilbermint is a consultant for Guidepoint. Dr. Maynard, Mr. Shelton, and Dr. Najmi have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Initiatives targeting hypoglycemia and insulin pen wastage could lead to dramatic cost savings in small community hospitals, new data suggest.

The two projects are part of a dedicated inpatient glucose management service led by Mihail (“Misha”) Zilbermint, MD, one of the few full-time endocrine hospitalists in the United States and one of even fewer who work at a small community hospital.

In 2019, Dr. Zilbermint and colleagues reported that their inpatient glucose management program resulted in a 27% reduction in length of stay and a 10.7% lower 30-day readmission rate. The projected cost savings for the period January 2016 to May 2017 was $953,578.

Dr. Zilbermint’s team has written two new articles that document cost savings for specific elements of the program; namely, a set of hospital-wide hypoglycemia prevention measures, and an initiative that reduced duplicate inpatient insulin pen dispensing.

About 1 in 4 people in U.S. hospitals have diabetes or hyperglycemia. Large academic hospitals have endocrine divisions and training programs, but 85% of people receive care at small community hospitals.

“There are management guidelines, but they’re not always followed ... That’s why I’ve been advocating for endocrine hospitalists to be deployed nationally,” Dr. Zilbermint said. He is chief and director of endocrinology, diabetes, and metabolism at Johns Hopkins Community Physicians at Suburban Hospital, Bethesda, Maryland.

Asked to comment on behalf of the Society of Hospital Medicine (SHM), Greg Maynard, MD, program lead for SHM’s Electronic Quality Improvement Programs, said that Suburban’s overall program goals align with those of the SHM.

“Dedicated inpatient glycemic control teams are very important and desirable to improve the quality and safety of care for inpatients with hyperglycemia and diabetes,” he said.

Regarding specific initiatives, such as those aimed at reducing hypoglycemia and insulin pen wastage, Dr. Maynard said, “All of these are feasible in a wide variety of institutions. The main barrier is getting the institutional support for people to work on these interventions. This series of studies can help spread the word about the positive return on investment.”

Another barrier – the current lack of publicly reported measures or pay-for-performance programs for hypoglycemia prevention and glycemic control – may soon change, added Dr. Maynard, who is also chief quality officer at the University of California, Davis, Medical Center.

“The National Quality Forum has endorsed new measures, and the CDC’s National Healthcare Safety Network is working on ways to augment those measures and embed them into their infrastructure,” he said.

Although SHM doesn’t specifically endorse full-time glycemic control hospitalists over endocrinology-trained glycemic control experts, “certainly hospitalists who accrue added training are very well positioned to be an important part of these interdisciplinary teams,” Dr. Maynard said.
 

‘The nurses were so afraid of hypoglycemia’

Tackling hypoglycemia was Dr. Zilbermint’s first priority when he started the glycemic management program at Suburban in late 2015.

“One of the most common complaints from the nurses was that a lot of their patients had hypoglycemia, especially in the ICU, when patients were placed on insulin infusion protocols ... Every time, the nurse would have to call the attending and ask what to do,” he explains.

In addition, Dr. Zilbermint says, there was no standard for treating hypoglycemia. A nurse in one unit would give two cups of juice, another a 50% dextrose infusion, or another, milk. Even more concerning, “the nurses were so afraid of hypoglycemia they would reflexively discontinue all insulin, including basal.”

So one of the new initiatives, led by Carter Shelton, MSHCM, an administrative fellow at the Medical University of South Carolina, Charleston, was to implement a set of hospital-wide hypoglycemia prevention measures, as described in an article published online April 21 in the Journal of Diabetes Science and Technology.
 

Inpatient hypoglycemia rate was cut nearly in half

This began in 2016, when the multidisciplinary Suburban Hospital Glucose Steering Committee identified four main causes of insulin-induced hypoglycemia (defined as a blood glucose level of ≤70 mg/dL in a patient who had received at least one dose of insulin in the past 24 hours) and devised solutions for each:

1. Lack of a unified hypoglycemia protocol. A formal, evidence-based, nurse-driven treatment protocol with clinical decision support in the electronic medical record was developed. The Suburban team adapted much of the protocol from one that had been recently implemented at the flagship Johns Hopkins Hospital, in Baltimore, Maryland.

According to that protocol, if patients are able to swallow, they are given 15 g or 30 g of carbohydrates in order to achieve a blood glucose level of 50 to 70 mg/dL and <50 mg/dL, respectively. Levels are checked 15 minutes later. Intravenous D50 or glucagon is reserved for patients who can’t swallow.

2. For patients in critical care, the insulin infusion protocol that had been in use set blood glucose targets of 80 to 110 mg/dL, which resulted in hypoglycemia in nearly every patient who received an insulin infusion. This protocol was changed to the currently recommended 140 to 180 mg/dL.

3. Most patients were managed with sliding-scale insulin, an outdated yet still widely used regimen whereby insulin is given based only on current blood glucose without accounting for carbohydrates consumed with meals and not corrected until the subsequent meal. This was changed so that nurses give insulin after the patient has consumed at least 50% of their meal carbohydrates.

4. Lack of hypoglycemia reporting. A glucometrics dashboard – now used throughout the Johns Hopkins system – was adopted to produce daily hypoglycemia reports in the EMR system that could be reviewed by the inpatient glucose management service to track quality metrics and plan further interventions.

Between Jan. 1, 2016, and Sept. 30, 2019, out of a total 49,315 patient-days, there were 2,682 days on which any hypoglycemia occurred and 874 days on which moderate hypoglycemia occurred (≤54 mg/dL). Type 2 diabetes accounted for 84.4% of the total patient-days; type 1 accounted for 4.4%.

The overall frequency of any hypoglycemia patient-days per month decreased from 7.5% to 3.9% during the study period (P = .001). This was significant for the patients with type 2 diabetes (7.4% to 3.8%; P < .0001) but not for those with type 1 diabetes (18.5% to 18.0%; P = .08).

Rates of moderate hypoglycemia also decreased significantly among the patients with type 2 diabetes (1.9% to 1.0%; P = .03) but not for those with type 1 diabetes (7.4% to 6.0%; P = .14).

On the basis of these rates in reducing hypoglycemia, in which the inpatient hypoglycemia rate was cut nearly in half, the estimated savings in cost of care to the hospital was $98,635 during the period of January 2016 to September 2019.
 

Reducing insulin pen waste by minimizing duplicate prescriptions

Suburban Hospital had been using insulin vials and syringes when Dr. Zilbermint first arrived there. He lobbied the administration to allow use of pens, because they’re easier to use and they reduce the risk for needlestick injuries. Nurses were educated and retrained monthly in their use.

The switch to pens – aspart (Novolog Flexpen) for bolus insulin and glargine (Lantus SoloSTAR) – took place in 2018. The cost of the aspart pen was $16.19, and the cost of glargine was $25.08. Each holds 300 units of insulin.

After the first month, the team noticed a large increase in expenses. A quality improvement project was devised to address the issue.

“We were dispensing sometimes three or four pens per person. That’s a lot. Each pen holds 300 units, so one pen should last the entire hospital stay of an average 4- or 5-day stay,” Dr. Zilbermint explained. “We had to figure out where we were bleeding the money and where the pens were going.”

When pens disappeared, the pharmacy would have to dispense new ones. One problem was that when patients were transferred from one unit to another, the pen would be left behind and the room would be cleaned. Sometimes the pens weren’t stored properly or were misplaced. Often, they’d end up in a nurse’s pocket.

The second intervention was led by Urooj Najmi, MD, of the American International School of Medicine, Atlanta, Georgia. A program was instituted to reduce duplicate inpatient insulin pen dispensing, as detailed in an article published in the same issue of the Journal of Diabetes Science and Technology.

Solutions to reduce duplicate pen dispensing included having pharmacy track daily insulin pen reports and monitor duplicate orders, with “do not dispense” instructions conveyed via the EMR system. All multidose medications, including insulin pens, were to be placed in patients’ bins at the nursing station, and nurses were instructed to look for patients’ insulin pens prior to their being transferred to another unit, rather than ask for a replacement pen.

From July 2018 to July 2019, 3,121 patients received insulin, of whom 95% received aspart and 47% received glargine. Of the 9,516 pens dispensed, 68% were for aspart and 32% were for glargine. During the study period, the number of pens dispensed per patient dropped from 2.2 to 1.2 for aspart and from 2.1 to 1.3 for glargine; differences were highly significant (P = .0002 and P = .0005, respectively).

The total amount of unnecessary dispensing during the first 4 months after initiating the pen implementation program was 58%. The average monthly cost was $11,820.68; the projected cost per year was $141,848.

Six months after the waste reduction strategies were implemented, monthly waste had dropped to 42%, translating to an estimated potential cost savings of $66,261 over 12 months.

Because Suburban Hospital doesn’t have an outpatient dispensing license, there is still wastage when patients are discharged, because they can’t take their pens home with them. That remains a challenge, Dr. Zilbermint noted.

The team is working on implementing automatic A1c testing for patients admitted with hyperglycemia who either have a history of diabetes or whose blood glucose level is >140 mg/dL. Dr. Zilbermint said, “it’s in the guidelines, but it’s not always done.”

Dr. Zilbermint is a consultant for Guidepoint. Dr. Maynard, Mr. Shelton, and Dr. Najmi have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Initiatives targeting hypoglycemia and insulin pen wastage could lead to dramatic cost savings in small community hospitals, new data suggest.

The two projects are part of a dedicated inpatient glucose management service led by Mihail (“Misha”) Zilbermint, MD, one of the few full-time endocrine hospitalists in the United States and one of even fewer who work at a small community hospital.

In 2019, Dr. Zilbermint and colleagues reported that their inpatient glucose management program resulted in a 27% reduction in length of stay and a 10.7% lower 30-day readmission rate. The projected cost savings for the period January 2016 to May 2017 was $953,578.

Dr. Zilbermint’s team has written two new articles that document cost savings for specific elements of the program; namely, a set of hospital-wide hypoglycemia prevention measures, and an initiative that reduced duplicate inpatient insulin pen dispensing.

About 1 in 4 people in U.S. hospitals have diabetes or hyperglycemia. Large academic hospitals have endocrine divisions and training programs, but 85% of people receive care at small community hospitals.

“There are management guidelines, but they’re not always followed ... That’s why I’ve been advocating for endocrine hospitalists to be deployed nationally,” Dr. Zilbermint said. He is chief and director of endocrinology, diabetes, and metabolism at Johns Hopkins Community Physicians at Suburban Hospital, Bethesda, Maryland.

Asked to comment on behalf of the Society of Hospital Medicine (SHM), Greg Maynard, MD, program lead for SHM’s Electronic Quality Improvement Programs, said that Suburban’s overall program goals align with those of the SHM.

“Dedicated inpatient glycemic control teams are very important and desirable to improve the quality and safety of care for inpatients with hyperglycemia and diabetes,” he said.

Regarding specific initiatives, such as those aimed at reducing hypoglycemia and insulin pen wastage, Dr. Maynard said, “All of these are feasible in a wide variety of institutions. The main barrier is getting the institutional support for people to work on these interventions. This series of studies can help spread the word about the positive return on investment.”

Another barrier – the current lack of publicly reported measures or pay-for-performance programs for hypoglycemia prevention and glycemic control – may soon change, added Dr. Maynard, who is also chief quality officer at the University of California, Davis, Medical Center.

“The National Quality Forum has endorsed new measures, and the CDC’s National Healthcare Safety Network is working on ways to augment those measures and embed them into their infrastructure,” he said.

Although SHM doesn’t specifically endorse full-time glycemic control hospitalists over endocrinology-trained glycemic control experts, “certainly hospitalists who accrue added training are very well positioned to be an important part of these interdisciplinary teams,” Dr. Maynard said.
 

‘The nurses were so afraid of hypoglycemia’

Tackling hypoglycemia was Dr. Zilbermint’s first priority when he started the glycemic management program at Suburban in late 2015.

“One of the most common complaints from the nurses was that a lot of their patients had hypoglycemia, especially in the ICU, when patients were placed on insulin infusion protocols ... Every time, the nurse would have to call the attending and ask what to do,” he explains.

In addition, Dr. Zilbermint says, there was no standard for treating hypoglycemia. A nurse in one unit would give two cups of juice, another a 50% dextrose infusion, or another, milk. Even more concerning, “the nurses were so afraid of hypoglycemia they would reflexively discontinue all insulin, including basal.”

So one of the new initiatives, led by Carter Shelton, MSHCM, an administrative fellow at the Medical University of South Carolina, Charleston, was to implement a set of hospital-wide hypoglycemia prevention measures, as described in an article published online April 21 in the Journal of Diabetes Science and Technology.
 

Inpatient hypoglycemia rate was cut nearly in half

This began in 2016, when the multidisciplinary Suburban Hospital Glucose Steering Committee identified four main causes of insulin-induced hypoglycemia (defined as a blood glucose level of ≤70 mg/dL in a patient who had received at least one dose of insulin in the past 24 hours) and devised solutions for each:

1. Lack of a unified hypoglycemia protocol. A formal, evidence-based, nurse-driven treatment protocol with clinical decision support in the electronic medical record was developed. The Suburban team adapted much of the protocol from one that had been recently implemented at the flagship Johns Hopkins Hospital, in Baltimore, Maryland.

According to that protocol, if patients are able to swallow, they are given 15 g or 30 g of carbohydrates in order to achieve a blood glucose level of 50 to 70 mg/dL and <50 mg/dL, respectively. Levels are checked 15 minutes later. Intravenous D50 or glucagon is reserved for patients who can’t swallow.

2. For patients in critical care, the insulin infusion protocol that had been in use set blood glucose targets of 80 to 110 mg/dL, which resulted in hypoglycemia in nearly every patient who received an insulin infusion. This protocol was changed to the currently recommended 140 to 180 mg/dL.

3. Most patients were managed with sliding-scale insulin, an outdated yet still widely used regimen whereby insulin is given based only on current blood glucose without accounting for carbohydrates consumed with meals and not corrected until the subsequent meal. This was changed so that nurses give insulin after the patient has consumed at least 50% of their meal carbohydrates.

4. Lack of hypoglycemia reporting. A glucometrics dashboard – now used throughout the Johns Hopkins system – was adopted to produce daily hypoglycemia reports in the EMR system that could be reviewed by the inpatient glucose management service to track quality metrics and plan further interventions.

Between Jan. 1, 2016, and Sept. 30, 2019, out of a total 49,315 patient-days, there were 2,682 days on which any hypoglycemia occurred and 874 days on which moderate hypoglycemia occurred (≤54 mg/dL). Type 2 diabetes accounted for 84.4% of the total patient-days; type 1 accounted for 4.4%.

The overall frequency of any hypoglycemia patient-days per month decreased from 7.5% to 3.9% during the study period (P = .001). This was significant for the patients with type 2 diabetes (7.4% to 3.8%; P < .0001) but not for those with type 1 diabetes (18.5% to 18.0%; P = .08).

Rates of moderate hypoglycemia also decreased significantly among the patients with type 2 diabetes (1.9% to 1.0%; P = .03) but not for those with type 1 diabetes (7.4% to 6.0%; P = .14).

On the basis of these rates in reducing hypoglycemia, in which the inpatient hypoglycemia rate was cut nearly in half, the estimated savings in cost of care to the hospital was $98,635 during the period of January 2016 to September 2019.
 

Reducing insulin pen waste by minimizing duplicate prescriptions

Suburban Hospital had been using insulin vials and syringes when Dr. Zilbermint first arrived there. He lobbied the administration to allow use of pens, because they’re easier to use and they reduce the risk for needlestick injuries. Nurses were educated and retrained monthly in their use.

The switch to pens – aspart (Novolog Flexpen) for bolus insulin and glargine (Lantus SoloSTAR) – took place in 2018. The cost of the aspart pen was $16.19, and the cost of glargine was $25.08. Each holds 300 units of insulin.

After the first month, the team noticed a large increase in expenses. A quality improvement project was devised to address the issue.

“We were dispensing sometimes three or four pens per person. That’s a lot. Each pen holds 300 units, so one pen should last the entire hospital stay of an average 4- or 5-day stay,” Dr. Zilbermint explained. “We had to figure out where we were bleeding the money and where the pens were going.”

When pens disappeared, the pharmacy would have to dispense new ones. One problem was that when patients were transferred from one unit to another, the pen would be left behind and the room would be cleaned. Sometimes the pens weren’t stored properly or were misplaced. Often, they’d end up in a nurse’s pocket.

The second intervention was led by Urooj Najmi, MD, of the American International School of Medicine, Atlanta, Georgia. A program was instituted to reduce duplicate inpatient insulin pen dispensing, as detailed in an article published in the same issue of the Journal of Diabetes Science and Technology.

Solutions to reduce duplicate pen dispensing included having pharmacy track daily insulin pen reports and monitor duplicate orders, with “do not dispense” instructions conveyed via the EMR system. All multidose medications, including insulin pens, were to be placed in patients’ bins at the nursing station, and nurses were instructed to look for patients’ insulin pens prior to their being transferred to another unit, rather than ask for a replacement pen.

From July 2018 to July 2019, 3,121 patients received insulin, of whom 95% received aspart and 47% received glargine. Of the 9,516 pens dispensed, 68% were for aspart and 32% were for glargine. During the study period, the number of pens dispensed per patient dropped from 2.2 to 1.2 for aspart and from 2.1 to 1.3 for glargine; differences were highly significant (P = .0002 and P = .0005, respectively).

The total amount of unnecessary dispensing during the first 4 months after initiating the pen implementation program was 58%. The average monthly cost was $11,820.68; the projected cost per year was $141,848.

Six months after the waste reduction strategies were implemented, monthly waste had dropped to 42%, translating to an estimated potential cost savings of $66,261 over 12 months.

Because Suburban Hospital doesn’t have an outpatient dispensing license, there is still wastage when patients are discharged, because they can’t take their pens home with them. That remains a challenge, Dr. Zilbermint noted.

The team is working on implementing automatic A1c testing for patients admitted with hyperglycemia who either have a history of diabetes or whose blood glucose level is >140 mg/dL. Dr. Zilbermint said, “it’s in the guidelines, but it’s not always done.”

Dr. Zilbermint is a consultant for Guidepoint. Dr. Maynard, Mr. Shelton, and Dr. Najmi have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.