Type 2 Diabetes ICYMI

Sodium-glucose cotransporter 2 (SGLT2) inhibitors show “remarkable consistency of class benefit” for improving cardiovascular outcomes in high-risk people across age, sex, and race/ethnicity categories.

The findings, from a meta-analysis of 10 major randomized clinical trials, were published online Jan. 5, 2021, in JAMA Network Open by Mukul Bhattarai, MD, a cardiology fellow at Southern Illinois University, Springfield, and colleagues.

“Our meta-analysis evaluated a wide spectrum of efficacy outcomes, further characterizing the primary outcome in different subgroups from several well-designed large clinical trials. It supports that SGLT2 inhibitors have emerged as an effective class of drugs for improving cardiovascular morbidity and mortality, including the prevention of [hospitalization for heart failure] and reducing all-cause mortality in selected patients,” Dr. Bhattarai and colleagues wrote.

The cardiovascular outcomes of SGLT2 inhibitor therapy, they noted, “can be compared across all trials, and it demonstrates remarkable consistency of class benefit, despite the variations in populations enrolled.”

However, they also noted that SGLT inhibitors did not reduce the risk of acute MIn overall, and that most of the trials were short term, with a mean follow-up of just 2.3 years.
 

Ten trials, consistent cardiovascular benefits

Dr. Bhattarai and colleagues searched the literature through Jan. 10, 2021, as well as meeting presentations and other sources. They identified 10 placebo-controlled, randomized clinical trials in which participants had atherosclerotic cardiovascular disease or ASCVD risk factors, diabetes, or heart failure. Among a total of 71,553 high-risk patients, 39,053 received an SGLT2 inhibitor and 32,500 received a placebo.

The primary outcome of cardiovascular death or hospitalization for heart failure occurred in 8.10% randomized to SGLT2 inhibitors, compared with 11.56% in the placebo group, a significant difference with odds ratio 0.67 (P < .001). Both individual outcomes were lower in the SGLT2-inhibitor group, with a number needed to treat of 5.7 (P < .001).

Patients receiving SGLT2 inhibitors also had significantly lower rates of major adverse cardiovascular events, defined as death due to cardiovascular causes, nonfatal MI, or nonfatal stroke. Those events occurred in 9.82% versus 10.22%(OR, 0.90; P = .03).

Hospitalizations and ED visits with heart failure were also reduced with SGLT2 inhibitors (4.37% vs. 6.81%; OR, 0.67; P < .001), as was cardiovascular death (4.65% vs. 5.14%; OR, 0.87; P = .009). The reduction in heart failure is likely caused by a combination of a natriuretic effect and reduced interstitial fluid, along with inhibition of cardiac fibrosis, the authors said.

On the other hand, no reductions were seen in acute MI, evaluated in five of the studies. That event occurred in 4.66% taking SGLT2 inhibitors, compared with 4.70% of the placebo group, a nonsignificant difference with an OR of 0.95 (P = 0.22). This is likely because of the fact that SGLT2 inhibitors don’t have known antianginal properties or vasodilatory effects, they don’t reduce myocardial oxygen consumption, and they don’t prevent cardiac muscle remodeling, they noted.

All-cause mortality was significantly lower with SGLT2 inhibitors, though, at 7.09% versus 7.86% (odds ratio, 0.87; P = .004).
 

Benefits seen across age, sex, and race/ethnicity subgroups

While no differences in benefit were found between men and women when compared with placebo groups, the rates of cardiovascular death or heart failure hospitalizations were slightly higher in men than in women (9.01% [OR, 0.75; P < .001] vs. 5.34% [OR, 0.78; P = .002]).

By age, SGLT2 inhibitors benefited people both those younger than 65 years and those aged 65 years and older, although the primary outcome was slightly lower in the younger group (6.94% [OR, 0.79; P < 0.001] vs. 10.47% [OR, 0.78; P < .001]).

And by race, similar benefits from SGLT2 inhibitors were seen among individuals who were White, compared with those who were Asian, Black, or of other race/ethnicity, with event rates of 8.77% (OR, 0.82; P < .001) and 8.75% (OR, 0.66; P = .06), respectively.

“Owing to the short-term trial durations, future long-term prospective studies and postmarketing surveillance studies are warranted to discover the rate of cardiovascular outcomes,” Dr. Bhattarai and colleagues concluded.

The authors have no disclosures.

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

Sodium-glucose cotransporter 2 (SGLT2) inhibitors show “remarkable consistency of class benefit” for improving cardiovascular outcomes in high-risk people across age, sex, and race/ethnicity categories.

The findings, from a meta-analysis of 10 major randomized clinical trials, were published online Jan. 5, 2021, in JAMA Network Open by Mukul Bhattarai, MD, a cardiology fellow at Southern Illinois University, Springfield, and colleagues.

“Our meta-analysis evaluated a wide spectrum of efficacy outcomes, further characterizing the primary outcome in different subgroups from several well-designed large clinical trials. It supports that SGLT2 inhibitors have emerged as an effective class of drugs for improving cardiovascular morbidity and mortality, including the prevention of [hospitalization for heart failure] and reducing all-cause mortality in selected patients,” Dr. Bhattarai and colleagues wrote.

The cardiovascular outcomes of SGLT2 inhibitor therapy, they noted, “can be compared across all trials, and it demonstrates remarkable consistency of class benefit, despite the variations in populations enrolled.”

However, they also noted that SGLT inhibitors did not reduce the risk of acute MIn overall, and that most of the trials were short term, with a mean follow-up of just 2.3 years.
 

Ten trials, consistent cardiovascular benefits

Dr. Bhattarai and colleagues searched the literature through Jan. 10, 2021, as well as meeting presentations and other sources. They identified 10 placebo-controlled, randomized clinical trials in which participants had atherosclerotic cardiovascular disease or ASCVD risk factors, diabetes, or heart failure. Among a total of 71,553 high-risk patients, 39,053 received an SGLT2 inhibitor and 32,500 received a placebo.

The primary outcome of cardiovascular death or hospitalization for heart failure occurred in 8.10% randomized to SGLT2 inhibitors, compared with 11.56% in the placebo group, a significant difference with odds ratio 0.67 (P < .001). Both individual outcomes were lower in the SGLT2-inhibitor group, with a number needed to treat of 5.7 (P < .001).

Patients receiving SGLT2 inhibitors also had significantly lower rates of major adverse cardiovascular events, defined as death due to cardiovascular causes, nonfatal MI, or nonfatal stroke. Those events occurred in 9.82% versus 10.22%(OR, 0.90; P = .03).

Hospitalizations and ED visits with heart failure were also reduced with SGLT2 inhibitors (4.37% vs. 6.81%; OR, 0.67; P < .001), as was cardiovascular death (4.65% vs. 5.14%; OR, 0.87; P = .009). The reduction in heart failure is likely caused by a combination of a natriuretic effect and reduced interstitial fluid, along with inhibition of cardiac fibrosis, the authors said.

On the other hand, no reductions were seen in acute MI, evaluated in five of the studies. That event occurred in 4.66% taking SGLT2 inhibitors, compared with 4.70% of the placebo group, a nonsignificant difference with an OR of 0.95 (P = 0.22). This is likely because of the fact that SGLT2 inhibitors don’t have known antianginal properties or vasodilatory effects, they don’t reduce myocardial oxygen consumption, and they don’t prevent cardiac muscle remodeling, they noted.

All-cause mortality was significantly lower with SGLT2 inhibitors, though, at 7.09% versus 7.86% (odds ratio, 0.87; P = .004).
 

Benefits seen across age, sex, and race/ethnicity subgroups

While no differences in benefit were found between men and women when compared with placebo groups, the rates of cardiovascular death or heart failure hospitalizations were slightly higher in men than in women (9.01% [OR, 0.75; P < .001] vs. 5.34% [OR, 0.78; P = .002]).

By age, SGLT2 inhibitors benefited people both those younger than 65 years and those aged 65 years and older, although the primary outcome was slightly lower in the younger group (6.94% [OR, 0.79; P < 0.001] vs. 10.47% [OR, 0.78; P < .001]).

And by race, similar benefits from SGLT2 inhibitors were seen among individuals who were White, compared with those who were Asian, Black, or of other race/ethnicity, with event rates of 8.77% (OR, 0.82; P < .001) and 8.75% (OR, 0.66; P = .06), respectively.

“Owing to the short-term trial durations, future long-term prospective studies and postmarketing surveillance studies are warranted to discover the rate of cardiovascular outcomes,” Dr. Bhattarai and colleagues concluded.

The authors have no disclosures.

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

Sodium-glucose cotransporter 2 (SGLT2) inhibitors show “remarkable consistency of class benefit” for improving cardiovascular outcomes in high-risk people across age, sex, and race/ethnicity categories.

The findings, from a meta-analysis of 10 major randomized clinical trials, were published online Jan. 5, 2021, in JAMA Network Open by Mukul Bhattarai, MD, a cardiology fellow at Southern Illinois University, Springfield, and colleagues.

“Our meta-analysis evaluated a wide spectrum of efficacy outcomes, further characterizing the primary outcome in different subgroups from several well-designed large clinical trials. It supports that SGLT2 inhibitors have emerged as an effective class of drugs for improving cardiovascular morbidity and mortality, including the prevention of [hospitalization for heart failure] and reducing all-cause mortality in selected patients,” Dr. Bhattarai and colleagues wrote.

The cardiovascular outcomes of SGLT2 inhibitor therapy, they noted, “can be compared across all trials, and it demonstrates remarkable consistency of class benefit, despite the variations in populations enrolled.”

However, they also noted that SGLT inhibitors did not reduce the risk of acute MIn overall, and that most of the trials were short term, with a mean follow-up of just 2.3 years.
 

Ten trials, consistent cardiovascular benefits

Dr. Bhattarai and colleagues searched the literature through Jan. 10, 2021, as well as meeting presentations and other sources. They identified 10 placebo-controlled, randomized clinical trials in which participants had atherosclerotic cardiovascular disease or ASCVD risk factors, diabetes, or heart failure. Among a total of 71,553 high-risk patients, 39,053 received an SGLT2 inhibitor and 32,500 received a placebo.

The primary outcome of cardiovascular death or hospitalization for heart failure occurred in 8.10% randomized to SGLT2 inhibitors, compared with 11.56% in the placebo group, a significant difference with odds ratio 0.67 (P < .001). Both individual outcomes were lower in the SGLT2-inhibitor group, with a number needed to treat of 5.7 (P < .001).

Patients receiving SGLT2 inhibitors also had significantly lower rates of major adverse cardiovascular events, defined as death due to cardiovascular causes, nonfatal MI, or nonfatal stroke. Those events occurred in 9.82% versus 10.22%(OR, 0.90; P = .03).

Hospitalizations and ED visits with heart failure were also reduced with SGLT2 inhibitors (4.37% vs. 6.81%; OR, 0.67; P < .001), as was cardiovascular death (4.65% vs. 5.14%; OR, 0.87; P = .009). The reduction in heart failure is likely caused by a combination of a natriuretic effect and reduced interstitial fluid, along with inhibition of cardiac fibrosis, the authors said.

On the other hand, no reductions were seen in acute MI, evaluated in five of the studies. That event occurred in 4.66% taking SGLT2 inhibitors, compared with 4.70% of the placebo group, a nonsignificant difference with an OR of 0.95 (P = 0.22). This is likely because of the fact that SGLT2 inhibitors don’t have known antianginal properties or vasodilatory effects, they don’t reduce myocardial oxygen consumption, and they don’t prevent cardiac muscle remodeling, they noted.

All-cause mortality was significantly lower with SGLT2 inhibitors, though, at 7.09% versus 7.86% (odds ratio, 0.87; P = .004).
 

Benefits seen across age, sex, and race/ethnicity subgroups

While no differences in benefit were found between men and women when compared with placebo groups, the rates of cardiovascular death or heart failure hospitalizations were slightly higher in men than in women (9.01% [OR, 0.75; P < .001] vs. 5.34% [OR, 0.78; P = .002]).

By age, SGLT2 inhibitors benefited people both those younger than 65 years and those aged 65 years and older, although the primary outcome was slightly lower in the younger group (6.94% [OR, 0.79; P < 0.001] vs. 10.47% [OR, 0.78; P < .001]).

And by race, similar benefits from SGLT2 inhibitors were seen among individuals who were White, compared with those who were Asian, Black, or of other race/ethnicity, with event rates of 8.77% (OR, 0.82; P < .001) and 8.75% (OR, 0.66; P = .06), respectively.

“Owing to the short-term trial durations, future long-term prospective studies and postmarketing surveillance studies are warranted to discover the rate of cardiovascular outcomes,” Dr. Bhattarai and colleagues concluded.

The authors have no disclosures.

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

The Centers for Medicare & Medicaid Services has finalized a rule to expand Medicare coverage to include continuous glucose monitoring (CGM) devices that are not approved for making treatment decisions.

Proposed in November 2020, the final CMS rule applies primarily to CGMs that integrate with Medtronic insulin pumps. Those CGMs have not been approved by the Food and Drug Administration to replace the need for fingerstick blood glucose measurements in determining insulin or other glucose-lowering medication dosing.

Other CGM systems, Dexcom G6 and Abbott Libre, have “therapeutic” indications and were already covered under Medicare, as was the combined insulin pump–CGM Tandem Diabetes Care Control-IQ technology system.

The expanded coverage means that people using the Medtronic 770G or 630G hybrid closed-loop insulin delivery systems will receive coverage for all the systems’ components, and that people aging into Medicare won’t lose any coverage for those devices.

Medtronic will continue to offer its CGM Access Discount to all Medicare customers until the ruling takes effect. The proposed rule was finalized on Dec. 21, 2021, and will be effective starting 60 days after official publication.

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

The Centers for Medicare & Medicaid Services has finalized a rule to expand Medicare coverage to include continuous glucose monitoring (CGM) devices that are not approved for making treatment decisions.

Proposed in November 2020, the final CMS rule applies primarily to CGMs that integrate with Medtronic insulin pumps. Those CGMs have not been approved by the Food and Drug Administration to replace the need for fingerstick blood glucose measurements in determining insulin or other glucose-lowering medication dosing.

Other CGM systems, Dexcom G6 and Abbott Libre, have “therapeutic” indications and were already covered under Medicare, as was the combined insulin pump–CGM Tandem Diabetes Care Control-IQ technology system.

The expanded coverage means that people using the Medtronic 770G or 630G hybrid closed-loop insulin delivery systems will receive coverage for all the systems’ components, and that people aging into Medicare won’t lose any coverage for those devices.

Medtronic will continue to offer its CGM Access Discount to all Medicare customers until the ruling takes effect. The proposed rule was finalized on Dec. 21, 2021, and will be effective starting 60 days after official publication.

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

The Centers for Medicare & Medicaid Services has finalized a rule to expand Medicare coverage to include continuous glucose monitoring (CGM) devices that are not approved for making treatment decisions.

Proposed in November 2020, the final CMS rule applies primarily to CGMs that integrate with Medtronic insulin pumps. Those CGMs have not been approved by the Food and Drug Administration to replace the need for fingerstick blood glucose measurements in determining insulin or other glucose-lowering medication dosing.

Other CGM systems, Dexcom G6 and Abbott Libre, have “therapeutic” indications and were already covered under Medicare, as was the combined insulin pump–CGM Tandem Diabetes Care Control-IQ technology system.

The expanded coverage means that people using the Medtronic 770G or 630G hybrid closed-loop insulin delivery systems will receive coverage for all the systems’ components, and that people aging into Medicare won’t lose any coverage for those devices.

Medtronic will continue to offer its CGM Access Discount to all Medicare customers until the ruling takes effect. The proposed rule was finalized on Dec. 21, 2021, and will be effective starting 60 days after official publication.

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

In more than 15% of people with benign adrenal tumors, the growths produce clinically relevant levels of serum cortisol that are significantly linked with an increased prevalence of hypertension and, in 5% of those with Cushing syndrome (CS), an increased prevalence of type 2 diabetes, based on data from more than 1,300 people with benign adrenal tumors, the largest reported prospective study of the disorder.

The study results showed that mild autonomous cortisol secretion (MACS) from benign adrenal tumors “is very frequent and is an important risk condition for high blood pressure and type 2 diabetes, especially in older women,” said Alessandro Prete, MD, lead author of the study which was published online Jan. 3, 2022, in Annals of Internal Medicine.

SEBASTIAN KAULITZKI/SCIENCE PHOTO LIBRARY/Getty Images

“The impact of MACS on high blood pressure and risk for type 2 diabetes has been underestimated until now,” said Dr. Prete, an endocrinologist at the University of Birmingham (England), in a written statement. 

Results from previous studies “suggested that MACS is associated with poor health. Our study is the largest to establish conclusively the extent of the risk and severity of high blood pressure and type 2 diabetes in patients with MACS,” said Wiebke Arlt, MD, DSc, senior author and director of the Institute of Metabolism & Systems Research at the University of Birmingham.

All patients found to have a benign adrenal tumor should undergo testing for MACS and have their blood pressure and glucose levels measured regularly, Dr. Arlt advised in the statement released by the University of Birmingham.
 

MACS more common than previously thought

The new findings show that MACS “is more common and may have a more negative impact on health than previously thought, including increasing the risk for type 2 diabetes,” commented Lucy Chambers, PhD, head of research communications at Diabetes UK. “The findings suggest that screening for MACS could help identify people – particularly women, in whom the condition was found to be more common – who may benefit from support to reduce their risk of type 2 diabetes.”

The study included 1,305 people with newly diagnosed, benign adrenal tumors greater than 1 cm, a subset of patients prospectively enrolled in a study with the primary purpose of validating a novel way to diagnose adrenocortical carcinomas. Patients underwent treatment in 2011-2016 at any of 14 tertiary centers in 11 countries.

Researchers used a MACS definition of failure to suppress morning serum cortisol concentration to less than 50 nmol/L after treatment with 1 mg oral dexamethasone at 11 p.m. the previous evening in those with no clinical features of CS.

Roughly half of patients (n = 649) showed normal cortisol suppression with dexamethasone, identifying them as having nonfunctioning adrenal tumors, and about 35% showed possible MACS based on having moderate levels of excess cortisol.

Nearly 11% (n = 140) showed definitive MACS with more robust cortisol levels, and 5% (n = 65) received a diagnosis of clinically overt CS despite selection criteria meant to exclude people with clinical signs of CS.

There was a clear relationship between patient sex and severity of autonomous cortisol production. Among those with nonfunctioning adrenal tumors, 64% were women, which rose to 74% women in those with definitive MACS and 86% women among those with CS. The median age of participants was 60 years old.
 

Increasing cortisol levels linked with cardiometabolic disease

Analysis of the prevalence of hypertension and type 2 diabetes after adjustment for age, sex, and body mass index showed that, compared with people with nonfunctioning adrenal tumors, those with definitive MACS had a significant 15% higher rate of hypertension and those with overt CS had a 37% higher rate. 

Higher levels of excess cortisol were also directly linked with an increased need for treatment with three or more antihypertensive agents to control blood pressure. Those with definitive MACS had a significant 31% higher rate of being on three or more drugs, and those with overt CS had a greater than twofold higher rate.

People with overt CS also had a significant 62% higher rate of type 2 diabetes, compared with those with a nonfunctioning tumor, but in those with definitive MACS the association was not significant. However, people with definitive MACS or overt CS who had type 2 diabetes and also had significantly increased rates of requiring insulin treatment.

The findings show that “people with definitive MACS carry an increased cardiometabolic burden similar to that seen in CS even if they do not display typical features of clinically overt cortisol excess,” the authors wrote in the report.

Even among those with apparently nonfunctioning tumors, each 10 nmol/L rise in cortisol level during a dexamethasone-suppression test was associated with a higher cardiometabolic disease burden. This observation suggests that current diagnostic cutoffs for the suppression test may miss some people with clinically relevant autonomous cortisol secretion, the report said. The study findings also suggest that people with benign adrenal tumors show a progressive continuum of excess cortisol with clinical consequences that increase as levels increase.
 

Determine the consequences of cortisol secretion

“These data clearly support the European Society of Endocrinology guideline recommendations that clinicians should determine precisely the cardiometabolic consequences of mild cortisol secretion in patients with adrenal lesions,” André Lacroix, MD, wrote in an accompanying editorial.

But Dr. Lacroix included some caveats. He noted the “potential pitfalls in relying on a single total serum cortisol value after the 1-mg dexamethasone test.” He also wondered whether the analysis used optimal cortisol values to distinguish patient subgroups.

Plus, “even in patients with nonfunctioning adrenal tumors the prevalence of diabetes and hypertension is higher than in the general population, raising concerns about the cardiometabolic consequences of barely detectable cortisol excess,” wrote Dr. Lacroix, an endocrinologist at the CHUM Research Center and professor of medicine at the University of Montreal.

The study received no commercial funding. Dr. Prete, Dr. Chambers, and Dr. Lacroix have reported no relevant financial relationships. Dr. Arlt is listed as an inventor on a patent on the use of steroid profiling as a biomarker tool for the differential diagnosis of adrenal tumors.

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

In more than 15% of people with benign adrenal tumors, the growths produce clinically relevant levels of serum cortisol that are significantly linked with an increased prevalence of hypertension and, in 5% of those with Cushing syndrome (CS), an increased prevalence of type 2 diabetes, based on data from more than 1,300 people with benign adrenal tumors, the largest reported prospective study of the disorder.

The study results showed that mild autonomous cortisol secretion (MACS) from benign adrenal tumors “is very frequent and is an important risk condition for high blood pressure and type 2 diabetes, especially in older women,” said Alessandro Prete, MD, lead author of the study which was published online Jan. 3, 2022, in Annals of Internal Medicine.

SEBASTIAN KAULITZKI/SCIENCE PHOTO LIBRARY/Getty Images

“The impact of MACS on high blood pressure and risk for type 2 diabetes has been underestimated until now,” said Dr. Prete, an endocrinologist at the University of Birmingham (England), in a written statement. 

Results from previous studies “suggested that MACS is associated with poor health. Our study is the largest to establish conclusively the extent of the risk and severity of high blood pressure and type 2 diabetes in patients with MACS,” said Wiebke Arlt, MD, DSc, senior author and director of the Institute of Metabolism & Systems Research at the University of Birmingham.

All patients found to have a benign adrenal tumor should undergo testing for MACS and have their blood pressure and glucose levels measured regularly, Dr. Arlt advised in the statement released by the University of Birmingham.
 

MACS more common than previously thought

The new findings show that MACS “is more common and may have a more negative impact on health than previously thought, including increasing the risk for type 2 diabetes,” commented Lucy Chambers, PhD, head of research communications at Diabetes UK. “The findings suggest that screening for MACS could help identify people – particularly women, in whom the condition was found to be more common – who may benefit from support to reduce their risk of type 2 diabetes.”

The study included 1,305 people with newly diagnosed, benign adrenal tumors greater than 1 cm, a subset of patients prospectively enrolled in a study with the primary purpose of validating a novel way to diagnose adrenocortical carcinomas. Patients underwent treatment in 2011-2016 at any of 14 tertiary centers in 11 countries.

Researchers used a MACS definition of failure to suppress morning serum cortisol concentration to less than 50 nmol/L after treatment with 1 mg oral dexamethasone at 11 p.m. the previous evening in those with no clinical features of CS.

Roughly half of patients (n = 649) showed normal cortisol suppression with dexamethasone, identifying them as having nonfunctioning adrenal tumors, and about 35% showed possible MACS based on having moderate levels of excess cortisol.

Nearly 11% (n = 140) showed definitive MACS with more robust cortisol levels, and 5% (n = 65) received a diagnosis of clinically overt CS despite selection criteria meant to exclude people with clinical signs of CS.

There was a clear relationship between patient sex and severity of autonomous cortisol production. Among those with nonfunctioning adrenal tumors, 64% were women, which rose to 74% women in those with definitive MACS and 86% women among those with CS. The median age of participants was 60 years old.
 

Increasing cortisol levels linked with cardiometabolic disease

Analysis of the prevalence of hypertension and type 2 diabetes after adjustment for age, sex, and body mass index showed that, compared with people with nonfunctioning adrenal tumors, those with definitive MACS had a significant 15% higher rate of hypertension and those with overt CS had a 37% higher rate. 

Higher levels of excess cortisol were also directly linked with an increased need for treatment with three or more antihypertensive agents to control blood pressure. Those with definitive MACS had a significant 31% higher rate of being on three or more drugs, and those with overt CS had a greater than twofold higher rate.

People with overt CS also had a significant 62% higher rate of type 2 diabetes, compared with those with a nonfunctioning tumor, but in those with definitive MACS the association was not significant. However, people with definitive MACS or overt CS who had type 2 diabetes and also had significantly increased rates of requiring insulin treatment.

The findings show that “people with definitive MACS carry an increased cardiometabolic burden similar to that seen in CS even if they do not display typical features of clinically overt cortisol excess,” the authors wrote in the report.

Even among those with apparently nonfunctioning tumors, each 10 nmol/L rise in cortisol level during a dexamethasone-suppression test was associated with a higher cardiometabolic disease burden. This observation suggests that current diagnostic cutoffs for the suppression test may miss some people with clinically relevant autonomous cortisol secretion, the report said. The study findings also suggest that people with benign adrenal tumors show a progressive continuum of excess cortisol with clinical consequences that increase as levels increase.
 

Determine the consequences of cortisol secretion

“These data clearly support the European Society of Endocrinology guideline recommendations that clinicians should determine precisely the cardiometabolic consequences of mild cortisol secretion in patients with adrenal lesions,” André Lacroix, MD, wrote in an accompanying editorial.

But Dr. Lacroix included some caveats. He noted the “potential pitfalls in relying on a single total serum cortisol value after the 1-mg dexamethasone test.” He also wondered whether the analysis used optimal cortisol values to distinguish patient subgroups.

Plus, “even in patients with nonfunctioning adrenal tumors the prevalence of diabetes and hypertension is higher than in the general population, raising concerns about the cardiometabolic consequences of barely detectable cortisol excess,” wrote Dr. Lacroix, an endocrinologist at the CHUM Research Center and professor of medicine at the University of Montreal.

The study received no commercial funding. Dr. Prete, Dr. Chambers, and Dr. Lacroix have reported no relevant financial relationships. Dr. Arlt is listed as an inventor on a patent on the use of steroid profiling as a biomarker tool for the differential diagnosis of adrenal tumors.

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

In more than 15% of people with benign adrenal tumors, the growths produce clinically relevant levels of serum cortisol that are significantly linked with an increased prevalence of hypertension and, in 5% of those with Cushing syndrome (CS), an increased prevalence of type 2 diabetes, based on data from more than 1,300 people with benign adrenal tumors, the largest reported prospective study of the disorder.

The study results showed that mild autonomous cortisol secretion (MACS) from benign adrenal tumors “is very frequent and is an important risk condition for high blood pressure and type 2 diabetes, especially in older women,” said Alessandro Prete, MD, lead author of the study which was published online Jan. 3, 2022, in Annals of Internal Medicine.

SEBASTIAN KAULITZKI/SCIENCE PHOTO LIBRARY/Getty Images

“The impact of MACS on high blood pressure and risk for type 2 diabetes has been underestimated until now,” said Dr. Prete, an endocrinologist at the University of Birmingham (England), in a written statement. 

Results from previous studies “suggested that MACS is associated with poor health. Our study is the largest to establish conclusively the extent of the risk and severity of high blood pressure and type 2 diabetes in patients with MACS,” said Wiebke Arlt, MD, DSc, senior author and director of the Institute of Metabolism & Systems Research at the University of Birmingham.

All patients found to have a benign adrenal tumor should undergo testing for MACS and have their blood pressure and glucose levels measured regularly, Dr. Arlt advised in the statement released by the University of Birmingham.
 

MACS more common than previously thought

The new findings show that MACS “is more common and may have a more negative impact on health than previously thought, including increasing the risk for type 2 diabetes,” commented Lucy Chambers, PhD, head of research communications at Diabetes UK. “The findings suggest that screening for MACS could help identify people – particularly women, in whom the condition was found to be more common – who may benefit from support to reduce their risk of type 2 diabetes.”

The study included 1,305 people with newly diagnosed, benign adrenal tumors greater than 1 cm, a subset of patients prospectively enrolled in a study with the primary purpose of validating a novel way to diagnose adrenocortical carcinomas. Patients underwent treatment in 2011-2016 at any of 14 tertiary centers in 11 countries.

Researchers used a MACS definition of failure to suppress morning serum cortisol concentration to less than 50 nmol/L after treatment with 1 mg oral dexamethasone at 11 p.m. the previous evening in those with no clinical features of CS.

Roughly half of patients (n = 649) showed normal cortisol suppression with dexamethasone, identifying them as having nonfunctioning adrenal tumors, and about 35% showed possible MACS based on having moderate levels of excess cortisol.

Nearly 11% (n = 140) showed definitive MACS with more robust cortisol levels, and 5% (n = 65) received a diagnosis of clinically overt CS despite selection criteria meant to exclude people with clinical signs of CS.

There was a clear relationship between patient sex and severity of autonomous cortisol production. Among those with nonfunctioning adrenal tumors, 64% were women, which rose to 74% women in those with definitive MACS and 86% women among those with CS. The median age of participants was 60 years old.
 

Increasing cortisol levels linked with cardiometabolic disease

Analysis of the prevalence of hypertension and type 2 diabetes after adjustment for age, sex, and body mass index showed that, compared with people with nonfunctioning adrenal tumors, those with definitive MACS had a significant 15% higher rate of hypertension and those with overt CS had a 37% higher rate. 

Higher levels of excess cortisol were also directly linked with an increased need for treatment with three or more antihypertensive agents to control blood pressure. Those with definitive MACS had a significant 31% higher rate of being on three or more drugs, and those with overt CS had a greater than twofold higher rate.

People with overt CS also had a significant 62% higher rate of type 2 diabetes, compared with those with a nonfunctioning tumor, but in those with definitive MACS the association was not significant. However, people with definitive MACS or overt CS who had type 2 diabetes and also had significantly increased rates of requiring insulin treatment.

The findings show that “people with definitive MACS carry an increased cardiometabolic burden similar to that seen in CS even if they do not display typical features of clinically overt cortisol excess,” the authors wrote in the report.

Even among those with apparently nonfunctioning tumors, each 10 nmol/L rise in cortisol level during a dexamethasone-suppression test was associated with a higher cardiometabolic disease burden. This observation suggests that current diagnostic cutoffs for the suppression test may miss some people with clinically relevant autonomous cortisol secretion, the report said. The study findings also suggest that people with benign adrenal tumors show a progressive continuum of excess cortisol with clinical consequences that increase as levels increase.
 

Determine the consequences of cortisol secretion

“These data clearly support the European Society of Endocrinology guideline recommendations that clinicians should determine precisely the cardiometabolic consequences of mild cortisol secretion in patients with adrenal lesions,” André Lacroix, MD, wrote in an accompanying editorial.

But Dr. Lacroix included some caveats. He noted the “potential pitfalls in relying on a single total serum cortisol value after the 1-mg dexamethasone test.” He also wondered whether the analysis used optimal cortisol values to distinguish patient subgroups.

Plus, “even in patients with nonfunctioning adrenal tumors the prevalence of diabetes and hypertension is higher than in the general population, raising concerns about the cardiometabolic consequences of barely detectable cortisol excess,” wrote Dr. Lacroix, an endocrinologist at the CHUM Research Center and professor of medicine at the University of Montreal.

The study received no commercial funding. Dr. Prete, Dr. Chambers, and Dr. Lacroix have reported no relevant financial relationships. Dr. Arlt is listed as an inventor on a patent on the use of steroid profiling as a biomarker tool for the differential diagnosis of adrenal tumors.

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

Updated guidelines from the American Academy of Neurology advise against prescribing opioids for painful diabetic neuropathy – but note that several other oral and topical therapies may help ease pain.

Painful diabetic neuropathy is very common and can greatly affect an individual’s quality of life, guideline author Brian Callaghan, MD, University of Michigan, Ann Arbor, noted in a news release.

“This guideline aims to help neurologists and other doctors provide the highest quality patient care based on the latest evidence,” Dr. Callaghan said.

The recommendations update the 2011 AAN guideline on the treatment of painful diabetic neuropathy. The new guidance was published online Dec. 27, 2021, in Neurology and has been endorsed by the American Association of Neuromuscular & Electrodiagnostic Medicine.
 

Multiple options

To update the guideline, an expert panel reviewed data from more than 100 randomized controlled trials published from January 2008 to April 2020.

The panel noted that more than 16% of individuals with diabetes experience painful diabetic neuropathy, but it often goes unrecognized and untreated. The guideline recommends clinicians assess patients with diabetes for peripheral neuropathic pain and its effect on their function and quality of life.

Before prescribing treatment, health providers should determine if the patient also has mood or sleep problems as both can influence pain perception.

The guideline recommends offering one of four classes of oral medications found to be effective for neuropathic pain: tricyclic antidepressants such as amitriptyline, nortriptyline, or imipramine; serotonin norepinephrine reuptake inhibitors such as duloxetine, venlafaxine, or desvenlafaxine; gabapentinoids such as gabapentin or pregabalin; and/or sodium channel blockers such as carbamazepine, oxcarbazepine, lamotrigine, or lacosamide.

All four classes of medications have “comparable effect sizes just above or just below our cutoff for a medium effect size” (standardized median difference, 0.5), the panel noted.

In addition, “new studies on sodium channel blockers published since the last guideline have resulted in these drugs now being recommended and considered as effective at providing pain relief as the other drug classes recommended in this guideline,” said Dr. Callaghan.

When an initial medication fails to provide meaningful improvement in pain, or produces significant side effects, a trial of another medication from a different class is recommended.
 

Pain reduction, not elimination

Opioids are not recommended for painful diabetic neuropathy. Not only do they come with risks, there is also no strong evidence they are effective for painful diabetic neuropathy in the long term, the panel wrote. Tramadol and tapentadol are also not recommended for the treatment of painful diabetic neuropathy.

“Current evidence suggests that the risks of the use of opioids for painful diabetic neuropathy therapy outweigh the benefits, so they should not be prescribed,” Dr. Callaghan said.

For patients interested in trying topical, nontraditional, or nondrug interventions to reduce pain, the guideline recommends a number of options including capsaicin, glyceryl trinitrate spray, and Citrullus colocynthis. Ginkgo biloba, exercise, mindfulness, cognitive-behavioral therapy, and tai chi are also suggested.

“It is important to note that the recommended drugs and topical treatments in this guideline may not eliminate pain, but they have been shown to reduce pain,” Dr. Callaghan said. “The good news is there are many treatment options for painful diabetic neuropathy, so a treatment plan can be tailored specifically to each person living with this condition.”

Along with the updated guideline, the AAN has also published a new Polyneuropathy Quality Measurement Set to assist neurologists and other health care providers in treating patients with painful diabetic neuropathy.

The updated guideline was developed with financial support from the AAN.

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

Updated guidelines from the American Academy of Neurology advise against prescribing opioids for painful diabetic neuropathy – but note that several other oral and topical therapies may help ease pain.

Painful diabetic neuropathy is very common and can greatly affect an individual’s quality of life, guideline author Brian Callaghan, MD, University of Michigan, Ann Arbor, noted in a news release.

“This guideline aims to help neurologists and other doctors provide the highest quality patient care based on the latest evidence,” Dr. Callaghan said.

The recommendations update the 2011 AAN guideline on the treatment of painful diabetic neuropathy. The new guidance was published online Dec. 27, 2021, in Neurology and has been endorsed by the American Association of Neuromuscular & Electrodiagnostic Medicine.
 

Multiple options

To update the guideline, an expert panel reviewed data from more than 100 randomized controlled trials published from January 2008 to April 2020.

The panel noted that more than 16% of individuals with diabetes experience painful diabetic neuropathy, but it often goes unrecognized and untreated. The guideline recommends clinicians assess patients with diabetes for peripheral neuropathic pain and its effect on their function and quality of life.

Before prescribing treatment, health providers should determine if the patient also has mood or sleep problems as both can influence pain perception.

The guideline recommends offering one of four classes of oral medications found to be effective for neuropathic pain: tricyclic antidepressants such as amitriptyline, nortriptyline, or imipramine; serotonin norepinephrine reuptake inhibitors such as duloxetine, venlafaxine, or desvenlafaxine; gabapentinoids such as gabapentin or pregabalin; and/or sodium channel blockers such as carbamazepine, oxcarbazepine, lamotrigine, or lacosamide.

All four classes of medications have “comparable effect sizes just above or just below our cutoff for a medium effect size” (standardized median difference, 0.5), the panel noted.

In addition, “new studies on sodium channel blockers published since the last guideline have resulted in these drugs now being recommended and considered as effective at providing pain relief as the other drug classes recommended in this guideline,” said Dr. Callaghan.

When an initial medication fails to provide meaningful improvement in pain, or produces significant side effects, a trial of another medication from a different class is recommended.
 

Pain reduction, not elimination

Opioids are not recommended for painful diabetic neuropathy. Not only do they come with risks, there is also no strong evidence they are effective for painful diabetic neuropathy in the long term, the panel wrote. Tramadol and tapentadol are also not recommended for the treatment of painful diabetic neuropathy.

“Current evidence suggests that the risks of the use of opioids for painful diabetic neuropathy therapy outweigh the benefits, so they should not be prescribed,” Dr. Callaghan said.

For patients interested in trying topical, nontraditional, or nondrug interventions to reduce pain, the guideline recommends a number of options including capsaicin, glyceryl trinitrate spray, and Citrullus colocynthis. Ginkgo biloba, exercise, mindfulness, cognitive-behavioral therapy, and tai chi are also suggested.

“It is important to note that the recommended drugs and topical treatments in this guideline may not eliminate pain, but they have been shown to reduce pain,” Dr. Callaghan said. “The good news is there are many treatment options for painful diabetic neuropathy, so a treatment plan can be tailored specifically to each person living with this condition.”

Along with the updated guideline, the AAN has also published a new Polyneuropathy Quality Measurement Set to assist neurologists and other health care providers in treating patients with painful diabetic neuropathy.

The updated guideline was developed with financial support from the AAN.

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

Updated guidelines from the American Academy of Neurology advise against prescribing opioids for painful diabetic neuropathy – but note that several other oral and topical therapies may help ease pain.

Painful diabetic neuropathy is very common and can greatly affect an individual’s quality of life, guideline author Brian Callaghan, MD, University of Michigan, Ann Arbor, noted in a news release.

“This guideline aims to help neurologists and other doctors provide the highest quality patient care based on the latest evidence,” Dr. Callaghan said.

The recommendations update the 2011 AAN guideline on the treatment of painful diabetic neuropathy. The new guidance was published online Dec. 27, 2021, in Neurology and has been endorsed by the American Association of Neuromuscular & Electrodiagnostic Medicine.
 

Multiple options

To update the guideline, an expert panel reviewed data from more than 100 randomized controlled trials published from January 2008 to April 2020.

The panel noted that more than 16% of individuals with diabetes experience painful diabetic neuropathy, but it often goes unrecognized and untreated. The guideline recommends clinicians assess patients with diabetes for peripheral neuropathic pain and its effect on their function and quality of life.

Before prescribing treatment, health providers should determine if the patient also has mood or sleep problems as both can influence pain perception.

The guideline recommends offering one of four classes of oral medications found to be effective for neuropathic pain: tricyclic antidepressants such as amitriptyline, nortriptyline, or imipramine; serotonin norepinephrine reuptake inhibitors such as duloxetine, venlafaxine, or desvenlafaxine; gabapentinoids such as gabapentin or pregabalin; and/or sodium channel blockers such as carbamazepine, oxcarbazepine, lamotrigine, or lacosamide.

All four classes of medications have “comparable effect sizes just above or just below our cutoff for a medium effect size” (standardized median difference, 0.5), the panel noted.

In addition, “new studies on sodium channel blockers published since the last guideline have resulted in these drugs now being recommended and considered as effective at providing pain relief as the other drug classes recommended in this guideline,” said Dr. Callaghan.

When an initial medication fails to provide meaningful improvement in pain, or produces significant side effects, a trial of another medication from a different class is recommended.
 

Pain reduction, not elimination

Opioids are not recommended for painful diabetic neuropathy. Not only do they come with risks, there is also no strong evidence they are effective for painful diabetic neuropathy in the long term, the panel wrote. Tramadol and tapentadol are also not recommended for the treatment of painful diabetic neuropathy.

“Current evidence suggests that the risks of the use of opioids for painful diabetic neuropathy therapy outweigh the benefits, so they should not be prescribed,” Dr. Callaghan said.

For patients interested in trying topical, nontraditional, or nondrug interventions to reduce pain, the guideline recommends a number of options including capsaicin, glyceryl trinitrate spray, and Citrullus colocynthis. Ginkgo biloba, exercise, mindfulness, cognitive-behavioral therapy, and tai chi are also suggested.

“It is important to note that the recommended drugs and topical treatments in this guideline may not eliminate pain, but they have been shown to reduce pain,” Dr. Callaghan said. “The good news is there are many treatment options for painful diabetic neuropathy, so a treatment plan can be tailored specifically to each person living with this condition.”

Along with the updated guideline, the AAN has also published a new Polyneuropathy Quality Measurement Set to assist neurologists and other health care providers in treating patients with painful diabetic neuropathy.

The updated guideline was developed with financial support from the AAN.

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

Both Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG) are effective at improving hepatic steatosis in type 2 diabetes patients, according to a new analysis of a randomized, controlled trial.

Both procedures resulted in near elimination of liver fat 1 year after the surgery, but the effect on liver fibrosis was less clear. The authors called for more research to examine longer-term effects on fibrosis.

Both Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG) are effective at improving hepatic steatosis in type 2 diabetes patients, according to a new analysis of a randomized, controlled trial.

Both procedures resulted in near elimination of liver fat 1 year after the surgery, but the effect on liver fibrosis was less clear. The authors called for more research to examine longer-term effects on fibrosis.

Both Roux-en-Y gastric bypass (RYGB) and sleeve gastrectomy (SG) are effective at improving hepatic steatosis in type 2 diabetes patients, according to a new analysis of a randomized, controlled trial.

Both procedures resulted in near elimination of liver fat 1 year after the surgery, but the effect on liver fibrosis was less clear. The authors called for more research to examine longer-term effects on fibrosis.

The drumbeat of U.S. recalls continues for various lots of extended-release metformin because of contamination with unacceptably high levels of a nitrosamine that pose a cancer risk.

On Dec. 28, 2021, Viona Pharmaceuticals voluntarily recalled 33 lots of metformin hydrochloride extended-release tablets, USP 750 mg to the retail level, as a precautionary measure, because of possible contamination with N-nitrosodimethylamine (NDMA).

Metformin is used as an adjunct to diet and exercise to improve blood glucose control in adults with type 2 diabetes mellitus. Patients who have received impacted lots of metformin are advised to continue taking their medication and contact their physician for advice regarding an alternative treatment

The product can be identified as white to off-white, capsule shaped, uncoated tablets, debossed with “Z,” “C” on one side and “20” on the other side, and come in bottles of 100 tablets, which have been distributed nationwide. The 33 batch numbers are listed in a company statement.

The affected product was manufactured by Cadila Healthcare, Ahmedabad, India, for U.S. distribution by Viona.

In its statement, Viona said: “NDMA is classified as a probable human carcinogen (a substance that could cause cancer) based on results from laboratory tests. NDMA is a known environmental contaminant and found in water and foods, including meats, dairy products, and vegetables.”

This recall is being conducted “with the knowledge of the U.S. Food and Drug Administration,” it added.

Consumers with questions regarding this recall can contact the recall processor Eversana Life Science Services by phone at 1-888-304-5022, option 1; Monday-Friday, 8:00 a.m.–7:00 p.m. CT. Customers with medical-related questions who wish to report an adverse event or quality issues about the products being recalled should contact Viona Pharmaceuticals by phone at 888-304-5011, Monday-Friday, 8:30 p.m.–5:30 p.m., EST.
 

Latest in a long line of metformin recalls

This is the second time in 2021 that Viona has voluntarily recalled extended-release metformin tablets, 750 mg, because of potential contamination with NDMA. It recalled two lots in June, as reported by this news organization.

And in January 2021, Nostrum Laboratories recalled another lot of metformin extended-release 750-mg tablets, following on from a prior recall in November 2020.

These recalls follows 258 distinct U.S. lot recalls tracked by the FDA during the past 2 years because of unacceptably high NDMA levels in lots of metformin hydrochloride extended-release tablets.

The FDA has issued several statements about NDMA contamination of metformin formulations over the past 2 years, including a review of the methods used to detect NDMA and a summary of the information the agency had collected on excessive levels of NDMA in metformin.

According to the FDA’s 2020 summary, the agency has not yet determined how or why high levels of NDMA turn up so often in multiple batches of metformin hydrochloride extended-release tablets. However, published research attributed the contamination to certain methods of manufacturing metformin tablets.

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

The drumbeat of U.S. recalls continues for various lots of extended-release metformin because of contamination with unacceptably high levels of a nitrosamine that pose a cancer risk.

On Dec. 28, 2021, Viona Pharmaceuticals voluntarily recalled 33 lots of metformin hydrochloride extended-release tablets, USP 750 mg to the retail level, as a precautionary measure, because of possible contamination with N-nitrosodimethylamine (NDMA).

Metformin is used as an adjunct to diet and exercise to improve blood glucose control in adults with type 2 diabetes mellitus. Patients who have received impacted lots of metformin are advised to continue taking their medication and contact their physician for advice regarding an alternative treatment

The product can be identified as white to off-white, capsule shaped, uncoated tablets, debossed with “Z,” “C” on one side and “20” on the other side, and come in bottles of 100 tablets, which have been distributed nationwide. The 33 batch numbers are listed in a company statement.

The affected product was manufactured by Cadila Healthcare, Ahmedabad, India, for U.S. distribution by Viona.

In its statement, Viona said: “NDMA is classified as a probable human carcinogen (a substance that could cause cancer) based on results from laboratory tests. NDMA is a known environmental contaminant and found in water and foods, including meats, dairy products, and vegetables.”

This recall is being conducted “with the knowledge of the U.S. Food and Drug Administration,” it added.

Consumers with questions regarding this recall can contact the recall processor Eversana Life Science Services by phone at 1-888-304-5022, option 1; Monday-Friday, 8:00 a.m.–7:00 p.m. CT. Customers with medical-related questions who wish to report an adverse event or quality issues about the products being recalled should contact Viona Pharmaceuticals by phone at 888-304-5011, Monday-Friday, 8:30 p.m.–5:30 p.m., EST.
 

Latest in a long line of metformin recalls

This is the second time in 2021 that Viona has voluntarily recalled extended-release metformin tablets, 750 mg, because of potential contamination with NDMA. It recalled two lots in June, as reported by this news organization.

And in January 2021, Nostrum Laboratories recalled another lot of metformin extended-release 750-mg tablets, following on from a prior recall in November 2020.

These recalls follows 258 distinct U.S. lot recalls tracked by the FDA during the past 2 years because of unacceptably high NDMA levels in lots of metformin hydrochloride extended-release tablets.

The FDA has issued several statements about NDMA contamination of metformin formulations over the past 2 years, including a review of the methods used to detect NDMA and a summary of the information the agency had collected on excessive levels of NDMA in metformin.

According to the FDA’s 2020 summary, the agency has not yet determined how or why high levels of NDMA turn up so often in multiple batches of metformin hydrochloride extended-release tablets. However, published research attributed the contamination to certain methods of manufacturing metformin tablets.

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

The drumbeat of U.S. recalls continues for various lots of extended-release metformin because of contamination with unacceptably high levels of a nitrosamine that pose a cancer risk.

On Dec. 28, 2021, Viona Pharmaceuticals voluntarily recalled 33 lots of metformin hydrochloride extended-release tablets, USP 750 mg to the retail level, as a precautionary measure, because of possible contamination with N-nitrosodimethylamine (NDMA).

Metformin is used as an adjunct to diet and exercise to improve blood glucose control in adults with type 2 diabetes mellitus. Patients who have received impacted lots of metformin are advised to continue taking their medication and contact their physician for advice regarding an alternative treatment

The product can be identified as white to off-white, capsule shaped, uncoated tablets, debossed with “Z,” “C” on one side and “20” on the other side, and come in bottles of 100 tablets, which have been distributed nationwide. The 33 batch numbers are listed in a company statement.

The affected product was manufactured by Cadila Healthcare, Ahmedabad, India, for U.S. distribution by Viona.

In its statement, Viona said: “NDMA is classified as a probable human carcinogen (a substance that could cause cancer) based on results from laboratory tests. NDMA is a known environmental contaminant and found in water and foods, including meats, dairy products, and vegetables.”

This recall is being conducted “with the knowledge of the U.S. Food and Drug Administration,” it added.

Consumers with questions regarding this recall can contact the recall processor Eversana Life Science Services by phone at 1-888-304-5022, option 1; Monday-Friday, 8:00 a.m.–7:00 p.m. CT. Customers with medical-related questions who wish to report an adverse event or quality issues about the products being recalled should contact Viona Pharmaceuticals by phone at 888-304-5011, Monday-Friday, 8:30 p.m.–5:30 p.m., EST.
 

Latest in a long line of metformin recalls

This is the second time in 2021 that Viona has voluntarily recalled extended-release metformin tablets, 750 mg, because of potential contamination with NDMA. It recalled two lots in June, as reported by this news organization.

And in January 2021, Nostrum Laboratories recalled another lot of metformin extended-release 750-mg tablets, following on from a prior recall in November 2020.

These recalls follows 258 distinct U.S. lot recalls tracked by the FDA during the past 2 years because of unacceptably high NDMA levels in lots of metformin hydrochloride extended-release tablets.

The FDA has issued several statements about NDMA contamination of metformin formulations over the past 2 years, including a review of the methods used to detect NDMA and a summary of the information the agency had collected on excessive levels of NDMA in metformin.

According to the FDA’s 2020 summary, the agency has not yet determined how or why high levels of NDMA turn up so often in multiple batches of metformin hydrochloride extended-release tablets. However, published research attributed the contamination to certain methods of manufacturing metformin tablets.

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

The American Diabetes Association’s updated clinical recommendations for 2022 call for wider population screening, along with furthering the trends toward individualization of care use of diabetes technology.

Courtesy Joslin Diabetes Center

The summary of changes from 2021 spans four pages. “Diabetes is a really dynamic field so there is a lot to update which is good. It means progress,” ADA chief science and medical officer Robert A. Gabbay, MD, PhD, told this news organization.

The ADA Standards of Medical Care in Diabetes – 2022 was published Dec. 20, 2021, online as a supplement to Diabetes Care.
 

Screening widened by age, in pregnancy, and for type 1 diabetes

One dramatic change is a drop in age to begin screening all people for prediabetes and diabetes from 45 years to 35 years, regardless of risk factors such as obesity.

“Sadly, there are increasing numbers of people with diabetes and developing diabetes younger,” Dr. Gabbay said.

In August 2021, the U.S. Preventive Services Task Force dropped its recommended age of diabetes screening from 40 to 35 years for people with overweight or obesity, but not universally, as ADA now has.

The ADA made its recommendation independently, Dr. Gabbay noted.

The recommendation for testing pregnant women early in gestation (<15 weeks) for preexisting diabetes was also expanded, from just those with risk factors to consideration of testing all women for undiagnosed diabetes at the time they’re planning pregnancy, and if not then, at the first prenatal visit. Screening for gestational diabetes is then performed at 24-28 weeks.

Again, this is caused by increasing diabetes onset at younger ages, Dr. Gabbay said. “We’re well aware that the number of women who have diabetes and don’t know it and become pregnant is significant and therefore screening early on is important.”

New guidance regarding autoantibody screening in adults suspected of having type 1 diabetes and genetic testing for those who don’t fit typical criteria for either of the two main types are based on the ADA/European Association for the Study of Diabetes joint consensus statement on type 1 diabetes in adults.
 

Individualization of care based on comorbidities, other factors

The concept of individualization of care in diabetes has been emphasized for several years now, but continues to be enhanced with new data and newly available management tools.

Regarding management of type 2 diabetes, several charts have been included to help guide decision-making.

One lists drug-specific and patient factors, including comorbidities, to consider when selecting glucose-lowering medications. A new table depicts a building with four “pillars,” for complication risk reduction, including management of blood pressure, lipids, and glucose, as well as use of agents with cardiovascular and kidney benefit.

“On the type 2 side, the choice of therapy is really guided by several factors. We lay them out in a nice diagram. ... A lot of useful information there compares classes of drugs in order to help clinicians make decisions on what would be the appropriate therapy for a given individual,” Dr. Gabbay said.

An algorithm for pharmacologic treatment includes considerations of weight, hypoglycemia, and cost. Tables are also provided listing average wholesale prices of insulins and noninsulin medications.

A section now entitled “Obesity and weight management for the prevention and treatment of type 2 diabetes” has added content regarding the importance of addressing obesity in diabetes, particularly in the context of the COVID-19 pandemic, and the addition of semaglutide as an approved obesity treatment.

“What we hope is that this engenders a shared decision-making process with the patient to identify what the goals are and then choose the appropriate therapy for those goals,” Dr. Gabbay said.

New information has also been added about management of nonalcoholic fatty liver disease. “I think that’s one of the unrecognized and unaddressed complications of diabetes that we’ll see in the future, particularly as new therapies come out,” Dr. Gabbay predicted.

The section on cardiovascular disease and risk management, endorsed for the fourth year in a row by the American College of Cardiology, includes several new recommendations, including diagnosis of hypertension at a single visit if blood pressure is 180/110 mm Hg or greater, and individualization of blood pressure targets.

Chronic kidney disease management has now been separated from other microvascular complications into a standalone section, with several new updates. Retinopathy, neuropathy, and foot care remain combined in one section.
 

Diabetes technology: Rapidly evolving, access an issue

The new technology section “doubles down on the time in [normal glucose] range (TIR) concept,” but also emphasizes the importance of time below range.

“When we see that, we need to make a therapeutic change. We were concerned that as there’s more and more information and numbers, users might not pick up on what’s important,” Dr. Gabbay noted.

The new standards also provides greater affirmation of the value of continuous glucose monitoring (CGM) for people with both type 1 and type 2 diabetes at any age, with individualized choice of devices.

Access to technology is a “big issue, and something the ADA has really been fighting for, particularly in terms of health disparities,” Dr. Gabbay said, noting that ADA has a new Health Equity Now platform, which includes a “bill of rights” calling for all patients with diabetes to have access to state-of-the-art technologies, including CGM.

Overall, he said, “I think the big picture is diabetes continues to evolve and advance. After careful review of the literature, the standards of care identifies at least four big areas where there are some changes that clinicians need to know about: screening, how to individualize treatment, considerations of comorbidities, and the important role that technology plays.”

Dr. Gabbay is an employee of the ADA.

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

The American Diabetes Association’s updated clinical recommendations for 2022 call for wider population screening, along with furthering the trends toward individualization of care use of diabetes technology.

Courtesy Joslin Diabetes Center

The summary of changes from 2021 spans four pages. “Diabetes is a really dynamic field so there is a lot to update which is good. It means progress,” ADA chief science and medical officer Robert A. Gabbay, MD, PhD, told this news organization.

The ADA Standards of Medical Care in Diabetes – 2022 was published Dec. 20, 2021, online as a supplement to Diabetes Care.
 

Screening widened by age, in pregnancy, and for type 1 diabetes

One dramatic change is a drop in age to begin screening all people for prediabetes and diabetes from 45 years to 35 years, regardless of risk factors such as obesity.

“Sadly, there are increasing numbers of people with diabetes and developing diabetes younger,” Dr. Gabbay said.

In August 2021, the U.S. Preventive Services Task Force dropped its recommended age of diabetes screening from 40 to 35 years for people with overweight or obesity, but not universally, as ADA now has.

The ADA made its recommendation independently, Dr. Gabbay noted.

The recommendation for testing pregnant women early in gestation (<15 weeks) for preexisting diabetes was also expanded, from just those with risk factors to consideration of testing all women for undiagnosed diabetes at the time they’re planning pregnancy, and if not then, at the first prenatal visit. Screening for gestational diabetes is then performed at 24-28 weeks.

Again, this is caused by increasing diabetes onset at younger ages, Dr. Gabbay said. “We’re well aware that the number of women who have diabetes and don’t know it and become pregnant is significant and therefore screening early on is important.”

New guidance regarding autoantibody screening in adults suspected of having type 1 diabetes and genetic testing for those who don’t fit typical criteria for either of the two main types are based on the ADA/European Association for the Study of Diabetes joint consensus statement on type 1 diabetes in adults.
 

Individualization of care based on comorbidities, other factors

The concept of individualization of care in diabetes has been emphasized for several years now, but continues to be enhanced with new data and newly available management tools.

Regarding management of type 2 diabetes, several charts have been included to help guide decision-making.

One lists drug-specific and patient factors, including comorbidities, to consider when selecting glucose-lowering medications. A new table depicts a building with four “pillars,” for complication risk reduction, including management of blood pressure, lipids, and glucose, as well as use of agents with cardiovascular and kidney benefit.

“On the type 2 side, the choice of therapy is really guided by several factors. We lay them out in a nice diagram. ... A lot of useful information there compares classes of drugs in order to help clinicians make decisions on what would be the appropriate therapy for a given individual,” Dr. Gabbay said.

An algorithm for pharmacologic treatment includes considerations of weight, hypoglycemia, and cost. Tables are also provided listing average wholesale prices of insulins and noninsulin medications.

A section now entitled “Obesity and weight management for the prevention and treatment of type 2 diabetes” has added content regarding the importance of addressing obesity in diabetes, particularly in the context of the COVID-19 pandemic, and the addition of semaglutide as an approved obesity treatment.

“What we hope is that this engenders a shared decision-making process with the patient to identify what the goals are and then choose the appropriate therapy for those goals,” Dr. Gabbay said.

New information has also been added about management of nonalcoholic fatty liver disease. “I think that’s one of the unrecognized and unaddressed complications of diabetes that we’ll see in the future, particularly as new therapies come out,” Dr. Gabbay predicted.

The section on cardiovascular disease and risk management, endorsed for the fourth year in a row by the American College of Cardiology, includes several new recommendations, including diagnosis of hypertension at a single visit if blood pressure is 180/110 mm Hg or greater, and individualization of blood pressure targets.

Chronic kidney disease management has now been separated from other microvascular complications into a standalone section, with several new updates. Retinopathy, neuropathy, and foot care remain combined in one section.
 

Diabetes technology: Rapidly evolving, access an issue

The new technology section “doubles down on the time in [normal glucose] range (TIR) concept,” but also emphasizes the importance of time below range.

“When we see that, we need to make a therapeutic change. We were concerned that as there’s more and more information and numbers, users might not pick up on what’s important,” Dr. Gabbay noted.

The new standards also provides greater affirmation of the value of continuous glucose monitoring (CGM) for people with both type 1 and type 2 diabetes at any age, with individualized choice of devices.

Access to technology is a “big issue, and something the ADA has really been fighting for, particularly in terms of health disparities,” Dr. Gabbay said, noting that ADA has a new Health Equity Now platform, which includes a “bill of rights” calling for all patients with diabetes to have access to state-of-the-art technologies, including CGM.

Overall, he said, “I think the big picture is diabetes continues to evolve and advance. After careful review of the literature, the standards of care identifies at least four big areas where there are some changes that clinicians need to know about: screening, how to individualize treatment, considerations of comorbidities, and the important role that technology plays.”

Dr. Gabbay is an employee of the ADA.

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

The American Diabetes Association’s updated clinical recommendations for 2022 call for wider population screening, along with furthering the trends toward individualization of care use of diabetes technology.

Courtesy Joslin Diabetes Center

The summary of changes from 2021 spans four pages. “Diabetes is a really dynamic field so there is a lot to update which is good. It means progress,” ADA chief science and medical officer Robert A. Gabbay, MD, PhD, told this news organization.

The ADA Standards of Medical Care in Diabetes – 2022 was published Dec. 20, 2021, online as a supplement to Diabetes Care.
 

Screening widened by age, in pregnancy, and for type 1 diabetes

One dramatic change is a drop in age to begin screening all people for prediabetes and diabetes from 45 years to 35 years, regardless of risk factors such as obesity.

“Sadly, there are increasing numbers of people with diabetes and developing diabetes younger,” Dr. Gabbay said.

In August 2021, the U.S. Preventive Services Task Force dropped its recommended age of diabetes screening from 40 to 35 years for people with overweight or obesity, but not universally, as ADA now has.

The ADA made its recommendation independently, Dr. Gabbay noted.

The recommendation for testing pregnant women early in gestation (<15 weeks) for preexisting diabetes was also expanded, from just those with risk factors to consideration of testing all women for undiagnosed diabetes at the time they’re planning pregnancy, and if not then, at the first prenatal visit. Screening for gestational diabetes is then performed at 24-28 weeks.

Again, this is caused by increasing diabetes onset at younger ages, Dr. Gabbay said. “We’re well aware that the number of women who have diabetes and don’t know it and become pregnant is significant and therefore screening early on is important.”

New guidance regarding autoantibody screening in adults suspected of having type 1 diabetes and genetic testing for those who don’t fit typical criteria for either of the two main types are based on the ADA/European Association for the Study of Diabetes joint consensus statement on type 1 diabetes in adults.
 

Individualization of care based on comorbidities, other factors

The concept of individualization of care in diabetes has been emphasized for several years now, but continues to be enhanced with new data and newly available management tools.

Regarding management of type 2 diabetes, several charts have been included to help guide decision-making.

One lists drug-specific and patient factors, including comorbidities, to consider when selecting glucose-lowering medications. A new table depicts a building with four “pillars,” for complication risk reduction, including management of blood pressure, lipids, and glucose, as well as use of agents with cardiovascular and kidney benefit.

“On the type 2 side, the choice of therapy is really guided by several factors. We lay them out in a nice diagram. ... A lot of useful information there compares classes of drugs in order to help clinicians make decisions on what would be the appropriate therapy for a given individual,” Dr. Gabbay said.

An algorithm for pharmacologic treatment includes considerations of weight, hypoglycemia, and cost. Tables are also provided listing average wholesale prices of insulins and noninsulin medications.

A section now entitled “Obesity and weight management for the prevention and treatment of type 2 diabetes” has added content regarding the importance of addressing obesity in diabetes, particularly in the context of the COVID-19 pandemic, and the addition of semaglutide as an approved obesity treatment.

“What we hope is that this engenders a shared decision-making process with the patient to identify what the goals are and then choose the appropriate therapy for those goals,” Dr. Gabbay said.

New information has also been added about management of nonalcoholic fatty liver disease. “I think that’s one of the unrecognized and unaddressed complications of diabetes that we’ll see in the future, particularly as new therapies come out,” Dr. Gabbay predicted.

The section on cardiovascular disease and risk management, endorsed for the fourth year in a row by the American College of Cardiology, includes several new recommendations, including diagnosis of hypertension at a single visit if blood pressure is 180/110 mm Hg or greater, and individualization of blood pressure targets.

Chronic kidney disease management has now been separated from other microvascular complications into a standalone section, with several new updates. Retinopathy, neuropathy, and foot care remain combined in one section.
 

Diabetes technology: Rapidly evolving, access an issue

The new technology section “doubles down on the time in [normal glucose] range (TIR) concept,” but also emphasizes the importance of time below range.

“When we see that, we need to make a therapeutic change. We were concerned that as there’s more and more information and numbers, users might not pick up on what’s important,” Dr. Gabbay noted.

The new standards also provides greater affirmation of the value of continuous glucose monitoring (CGM) for people with both type 1 and type 2 diabetes at any age, with individualized choice of devices.

Access to technology is a “big issue, and something the ADA has really been fighting for, particularly in terms of health disparities,” Dr. Gabbay said, noting that ADA has a new Health Equity Now platform, which includes a “bill of rights” calling for all patients with diabetes to have access to state-of-the-art technologies, including CGM.

Overall, he said, “I think the big picture is diabetes continues to evolve and advance. After careful review of the literature, the standards of care identifies at least four big areas where there are some changes that clinicians need to know about: screening, how to individualize treatment, considerations of comorbidities, and the important role that technology plays.”

Dr. Gabbay is an employee of the ADA.

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

A hitherto unknown hormonal complex that regulates extracellular energy production in pancreatic islet (beta) cells could be a novel target to not only treat both type 1 and type 2 diabetes but also potentially to prevent their development in the first place, suggests basic science research led by U.S. investigators.

Fatty acid–binding protein 4 (FABP4), a recently identified hormone, was known to be elevated in type 2 diabetes, but the researchers now show that it is not only increased in type 1 diabetes but also that those increases predate its development.

They also show that antibodies against the hormone in mice models prevent type 1 diabetes and improve glycemic control in type 2 disease.

Moreover, it forms a complex with two other proteins that the researchers termed “Fabkin.”

The research, published in Nature, indicates that increased levels of the complex blunts beta cell function, while antibody treatment improves beta cell function.

“For many decades, we have been searching for the signal that communicates the status of energy reserves in adipocytes (fat cells) to generate appropriate endocrine responses, such as the insulin production from pancreatic beta cells,” said senior author Gökhan S. Hotamisligil, MD, PhD, in a press release. “We now have identified Fabkin as a novel hormone that controls this critical function through a very unusual molecular mechanism.”
 

Still a long way to go

Dr. Hotamisligil, who is director of the Sabri Ülker Center for Metabolic Research at the Harvard School of Public Health, Boston, explained in an interview that taking the findings to the clinic entails answering a number of questions.

“That will keep us busy for a long time, and there are also translational questions, which are extremely exciting,” but the team is very “optimistic” that the findings will transfer well into humans, he said.

One reason is that, in mice and humans with type 1 and type 2 diabetes, “we see exactly the same pattern of regulation” of Fabkin levels and that, “equally importantly,” sustained high levels of the hormone “correlate with poor diabetes control” in type 1 diabetes and disease severity in type 2 disease.

“This is the first strong indication that it will translate well, and the second is that, if we take human islets ... and then apply this hormone into those islets, we see the same suppression of insulin secretion and viability that we see in mice islets,” Dr. Hotamisligil said.

Moreover, blocking the hormone prevents the “negative effects” that we see on the islets, which is a “really critical” factor in suggesting that Fabkin could be a viable treatment target in humans, Dr. Hotamisligil explained.

He continued that, encouragingly, “nature has done some experiments in humans” with Fabkin, showing that “you can have a safe and healthy life with a mutation in the components of this complex ... that reduces levels of the hormone.

“These individuals have a greatly reduced risk for both diabetes and cardiovascular disease,” he said, “so this tells us that, if we can establish a safe agent that can be used in humans, this will be well tolerated for life, and it will have beneficial effects.”

Lastly, Dr. Hotamisligil said that such an agent already exists, “so it’s really just a matter of making it suitable for human use and taking it through the testing procedures.”

He cautioned, however, that “these are important pillars” for translational research “that we rarely, if ever, find in many of our projects,” and there is still a long way to go.
 

Study details: FABP4 levels associated with glycemic control

The team said the research was “inspired” by previous studies showing that FABP4 knockout mice had higher beta-cell mass in the pancreas and significantly increased glucose-stimulated insulin secretion.

While it is “well established” that FABP4 is increased in type 2 diabetes, they initially examined whether levels are also regulated in type 1 diabetes, independently of adiposity and insulin resistance.

Looking at serum samples from normoglycemic individuals and those with new-onset type 1 diabetes in the BABYDIAB and DiMELLI cohorts, they found that FABP4 was increased approximately 1.6-fold in the latter.

In another cohort of older patients with type 1 diabetes of variation durations, serum FABP4 levels were correlated with hemoglobin A1c levels (P = .005), “which suggests that FABP4 is associated with glycemic control.”

Mouse studies indicate that FABP4 levels are increased both shortly before and during new-onset type 1 diabetes, implying that the hormone “may have a role in beta-cell failure and pathogenesis” in both type 1 and type 2 diabetes.

Antibody targeting of FABP4 levels in mice also revealed that treatment from 10 weeks of age protected against the development of type 1 diabetes, while antibody-treated mice with diabetes had significantly reduced blood glucose and increased plasma insulin levels versus mice given control antibodies.

This, the team said, “suggests that these mice had a less severe diabetes phenotype” with the protection against type 1 diabetes similar to that seen in FABP4 knockout mice.

Mice with diet-induced obesity and nonobese mice with diabetes treated with anti-FABP4 antibodies had improved glucose tolerance tests and a significant increase in islet number and beta-cell mass versus controls.

Further work enabled the team to identify a complex formed by circulating FABP4, adenosine kinase, and nucleoside diphosphate kinase, which could be targeted by anti-FABP4 antibodies via both FABP4 and NPDK.

“We propose the name Fabkin for this new hormone complex formed by NDPK to indicate its unique constitution of a fatty acid–binding protein and kinases,” the researchers wrote.

The team then found that the Fabkin complex alters calcium homeostasis in the endoplasmic reticulum.

This, “results in [endoplasmic reticulum] dysfunction, increased sensitivity to environmental stress and potentiation of beta-cell death in vitro,” which are mechanisms “critical” to the pathogenesis of both type 1 and 2 diabetes.

Finally, they showed that targeting Fabkin with anti-FABP4 antibodies “preserves beta-cell mass and enhances beta-cell function to protect against diabetes in multiple models.”

Funding for this study came from National Institutes of Health and Juvenile Diabetes Research Foundation grants. The Hotamisligil Lab at the Sabri Ülker Center has generated intellectual property (assigned to Harvard University) related to hormonal FABP4 and its therapeutic targeting and receives funding for this project from Lab1636, an affiliate of Deerfield Management. Dr. Hotamisligil is on the scientific advisory board of Crescenta Pharmaceuticals and holds equity. The other authors have no conflicts of interest to declare.

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

A hitherto unknown hormonal complex that regulates extracellular energy production in pancreatic islet (beta) cells could be a novel target to not only treat both type 1 and type 2 diabetes but also potentially to prevent their development in the first place, suggests basic science research led by U.S. investigators.

Fatty acid–binding protein 4 (FABP4), a recently identified hormone, was known to be elevated in type 2 diabetes, but the researchers now show that it is not only increased in type 1 diabetes but also that those increases predate its development.

They also show that antibodies against the hormone in mice models prevent type 1 diabetes and improve glycemic control in type 2 disease.

Moreover, it forms a complex with two other proteins that the researchers termed “Fabkin.”

The research, published in Nature, indicates that increased levels of the complex blunts beta cell function, while antibody treatment improves beta cell function.

“For many decades, we have been searching for the signal that communicates the status of energy reserves in adipocytes (fat cells) to generate appropriate endocrine responses, such as the insulin production from pancreatic beta cells,” said senior author Gökhan S. Hotamisligil, MD, PhD, in a press release. “We now have identified Fabkin as a novel hormone that controls this critical function through a very unusual molecular mechanism.”
 

Still a long way to go

Dr. Hotamisligil, who is director of the Sabri Ülker Center for Metabolic Research at the Harvard School of Public Health, Boston, explained in an interview that taking the findings to the clinic entails answering a number of questions.

“That will keep us busy for a long time, and there are also translational questions, which are extremely exciting,” but the team is very “optimistic” that the findings will transfer well into humans, he said.

One reason is that, in mice and humans with type 1 and type 2 diabetes, “we see exactly the same pattern of regulation” of Fabkin levels and that, “equally importantly,” sustained high levels of the hormone “correlate with poor diabetes control” in type 1 diabetes and disease severity in type 2 disease.

“This is the first strong indication that it will translate well, and the second is that, if we take human islets ... and then apply this hormone into those islets, we see the same suppression of insulin secretion and viability that we see in mice islets,” Dr. Hotamisligil said.

Moreover, blocking the hormone prevents the “negative effects” that we see on the islets, which is a “really critical” factor in suggesting that Fabkin could be a viable treatment target in humans, Dr. Hotamisligil explained.

He continued that, encouragingly, “nature has done some experiments in humans” with Fabkin, showing that “you can have a safe and healthy life with a mutation in the components of this complex ... that reduces levels of the hormone.

“These individuals have a greatly reduced risk for both diabetes and cardiovascular disease,” he said, “so this tells us that, if we can establish a safe agent that can be used in humans, this will be well tolerated for life, and it will have beneficial effects.”

Lastly, Dr. Hotamisligil said that such an agent already exists, “so it’s really just a matter of making it suitable for human use and taking it through the testing procedures.”

He cautioned, however, that “these are important pillars” for translational research “that we rarely, if ever, find in many of our projects,” and there is still a long way to go.
 

Study details: FABP4 levels associated with glycemic control

The team said the research was “inspired” by previous studies showing that FABP4 knockout mice had higher beta-cell mass in the pancreas and significantly increased glucose-stimulated insulin secretion.

While it is “well established” that FABP4 is increased in type 2 diabetes, they initially examined whether levels are also regulated in type 1 diabetes, independently of adiposity and insulin resistance.

Looking at serum samples from normoglycemic individuals and those with new-onset type 1 diabetes in the BABYDIAB and DiMELLI cohorts, they found that FABP4 was increased approximately 1.6-fold in the latter.

In another cohort of older patients with type 1 diabetes of variation durations, serum FABP4 levels were correlated with hemoglobin A1c levels (P = .005), “which suggests that FABP4 is associated with glycemic control.”

Mouse studies indicate that FABP4 levels are increased both shortly before and during new-onset type 1 diabetes, implying that the hormone “may have a role in beta-cell failure and pathogenesis” in both type 1 and type 2 diabetes.

Antibody targeting of FABP4 levels in mice also revealed that treatment from 10 weeks of age protected against the development of type 1 diabetes, while antibody-treated mice with diabetes had significantly reduced blood glucose and increased plasma insulin levels versus mice given control antibodies.

This, the team said, “suggests that these mice had a less severe diabetes phenotype” with the protection against type 1 diabetes similar to that seen in FABP4 knockout mice.

Mice with diet-induced obesity and nonobese mice with diabetes treated with anti-FABP4 antibodies had improved glucose tolerance tests and a significant increase in islet number and beta-cell mass versus controls.

Further work enabled the team to identify a complex formed by circulating FABP4, adenosine kinase, and nucleoside diphosphate kinase, which could be targeted by anti-FABP4 antibodies via both FABP4 and NPDK.

“We propose the name Fabkin for this new hormone complex formed by NDPK to indicate its unique constitution of a fatty acid–binding protein and kinases,” the researchers wrote.

The team then found that the Fabkin complex alters calcium homeostasis in the endoplasmic reticulum.

This, “results in [endoplasmic reticulum] dysfunction, increased sensitivity to environmental stress and potentiation of beta-cell death in vitro,” which are mechanisms “critical” to the pathogenesis of both type 1 and 2 diabetes.

Finally, they showed that targeting Fabkin with anti-FABP4 antibodies “preserves beta-cell mass and enhances beta-cell function to protect against diabetes in multiple models.”

Funding for this study came from National Institutes of Health and Juvenile Diabetes Research Foundation grants. The Hotamisligil Lab at the Sabri Ülker Center has generated intellectual property (assigned to Harvard University) related to hormonal FABP4 and its therapeutic targeting and receives funding for this project from Lab1636, an affiliate of Deerfield Management. Dr. Hotamisligil is on the scientific advisory board of Crescenta Pharmaceuticals and holds equity. The other authors have no conflicts of interest to declare.

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

A hitherto unknown hormonal complex that regulates extracellular energy production in pancreatic islet (beta) cells could be a novel target to not only treat both type 1 and type 2 diabetes but also potentially to prevent their development in the first place, suggests basic science research led by U.S. investigators.

Fatty acid–binding protein 4 (FABP4), a recently identified hormone, was known to be elevated in type 2 diabetes, but the researchers now show that it is not only increased in type 1 diabetes but also that those increases predate its development.

They also show that antibodies against the hormone in mice models prevent type 1 diabetes and improve glycemic control in type 2 disease.

Moreover, it forms a complex with two other proteins that the researchers termed “Fabkin.”

The research, published in Nature, indicates that increased levels of the complex blunts beta cell function, while antibody treatment improves beta cell function.

“For many decades, we have been searching for the signal that communicates the status of energy reserves in adipocytes (fat cells) to generate appropriate endocrine responses, such as the insulin production from pancreatic beta cells,” said senior author Gökhan S. Hotamisligil, MD, PhD, in a press release. “We now have identified Fabkin as a novel hormone that controls this critical function through a very unusual molecular mechanism.”
 

Still a long way to go

Dr. Hotamisligil, who is director of the Sabri Ülker Center for Metabolic Research at the Harvard School of Public Health, Boston, explained in an interview that taking the findings to the clinic entails answering a number of questions.

“That will keep us busy for a long time, and there are also translational questions, which are extremely exciting,” but the team is very “optimistic” that the findings will transfer well into humans, he said.

One reason is that, in mice and humans with type 1 and type 2 diabetes, “we see exactly the same pattern of regulation” of Fabkin levels and that, “equally importantly,” sustained high levels of the hormone “correlate with poor diabetes control” in type 1 diabetes and disease severity in type 2 disease.

“This is the first strong indication that it will translate well, and the second is that, if we take human islets ... and then apply this hormone into those islets, we see the same suppression of insulin secretion and viability that we see in mice islets,” Dr. Hotamisligil said.

Moreover, blocking the hormone prevents the “negative effects” that we see on the islets, which is a “really critical” factor in suggesting that Fabkin could be a viable treatment target in humans, Dr. Hotamisligil explained.

He continued that, encouragingly, “nature has done some experiments in humans” with Fabkin, showing that “you can have a safe and healthy life with a mutation in the components of this complex ... that reduces levels of the hormone.

“These individuals have a greatly reduced risk for both diabetes and cardiovascular disease,” he said, “so this tells us that, if we can establish a safe agent that can be used in humans, this will be well tolerated for life, and it will have beneficial effects.”

Lastly, Dr. Hotamisligil said that such an agent already exists, “so it’s really just a matter of making it suitable for human use and taking it through the testing procedures.”

He cautioned, however, that “these are important pillars” for translational research “that we rarely, if ever, find in many of our projects,” and there is still a long way to go.
 

Study details: FABP4 levels associated with glycemic control

The team said the research was “inspired” by previous studies showing that FABP4 knockout mice had higher beta-cell mass in the pancreas and significantly increased glucose-stimulated insulin secretion.

While it is “well established” that FABP4 is increased in type 2 diabetes, they initially examined whether levels are also regulated in type 1 diabetes, independently of adiposity and insulin resistance.

Looking at serum samples from normoglycemic individuals and those with new-onset type 1 diabetes in the BABYDIAB and DiMELLI cohorts, they found that FABP4 was increased approximately 1.6-fold in the latter.

In another cohort of older patients with type 1 diabetes of variation durations, serum FABP4 levels were correlated with hemoglobin A1c levels (P = .005), “which suggests that FABP4 is associated with glycemic control.”

Mouse studies indicate that FABP4 levels are increased both shortly before and during new-onset type 1 diabetes, implying that the hormone “may have a role in beta-cell failure and pathogenesis” in both type 1 and type 2 diabetes.

Antibody targeting of FABP4 levels in mice also revealed that treatment from 10 weeks of age protected against the development of type 1 diabetes, while antibody-treated mice with diabetes had significantly reduced blood glucose and increased plasma insulin levels versus mice given control antibodies.

This, the team said, “suggests that these mice had a less severe diabetes phenotype” with the protection against type 1 diabetes similar to that seen in FABP4 knockout mice.

Mice with diet-induced obesity and nonobese mice with diabetes treated with anti-FABP4 antibodies had improved glucose tolerance tests and a significant increase in islet number and beta-cell mass versus controls.

Further work enabled the team to identify a complex formed by circulating FABP4, adenosine kinase, and nucleoside diphosphate kinase, which could be targeted by anti-FABP4 antibodies via both FABP4 and NPDK.

“We propose the name Fabkin for this new hormone complex formed by NDPK to indicate its unique constitution of a fatty acid–binding protein and kinases,” the researchers wrote.

The team then found that the Fabkin complex alters calcium homeostasis in the endoplasmic reticulum.

This, “results in [endoplasmic reticulum] dysfunction, increased sensitivity to environmental stress and potentiation of beta-cell death in vitro,” which are mechanisms “critical” to the pathogenesis of both type 1 and 2 diabetes.

Finally, they showed that targeting Fabkin with anti-FABP4 antibodies “preserves beta-cell mass and enhances beta-cell function to protect against diabetes in multiple models.”

Funding for this study came from National Institutes of Health and Juvenile Diabetes Research Foundation grants. The Hotamisligil Lab at the Sabri Ülker Center has generated intellectual property (assigned to Harvard University) related to hormonal FABP4 and its therapeutic targeting and receives funding for this project from Lab1636, an affiliate of Deerfield Management. Dr. Hotamisligil is on the scientific advisory board of Crescenta Pharmaceuticals and holds equity. The other authors have no conflicts of interest to declare.

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

Patients with obesity and type 2 diabetes who underwent bariatric surgery and had 10-year durable diabetes remission had a 60% lower risk of incident cancer than patients who had usual obesity care.

And women who had bariatric surgery had a 42% lower risk of having cancer during a median 21-year follow-up, compared with women who had usual obesity care.

These findings from 701 patients in the Swedish Obese Subjects (SOS) study who had type 2 diabetes were recently published in Diabetes Care.

The results illustrate the “connection between glucose control and cancer prevention” and suggest that “among patients with type 2 diabetes, many cancer cases are preventable,” lead author Kajsa Sjöholm, PhD, associate professor of molecular medicine at Sahlgrenska Academy, University of Gothenburg (Sweden), said in a press release from the university.

“The global epidemic of both obesity and diabetes leads to an increased risk of cancer, as well as an increased risk of premature death,” added senior author Magdalena Taube, PhD, associate professor of molecular medicine in the same academy.

“It has been estimated that, over the next 10-15 years, obesity may cause more cancer cases than smoking in several countries,” she noted. Therefore, “strategies are needed to prevent this development, and our results can provide vital guidance for prevention of cancer in patients with obesity and type 2 diabetes.”
 

Durable diabetes remission seems key

Two-thirds of the patients in the bariatric surgery group had vertical banded gastroplasty (65%), and the rest had adjustable or nonadjustable gastric banding (18%) or gastric bypass (17%).

Each type of bariatric surgery was associated with higher diabetes remission rates, compared with usual care, in a previous study by these researchers, Dr. Taube said in an interview.

“In our present study,” she added, “we observed a nonsignificant trend, where patients with obesity and type 2 diabetes in the highest weight loss tertile (average weight loss, –44.8 kg) had somewhat lower risk of cancer compared to the lowest tertile [average weight loss, –14.9 kg].”

This might suggest, Dr. Taube continued, that with respect to cancer risk, surgery techniques resulting in greater weight loss (for example, Roux-en-Y gastric bypass and sleeve gastrectomy) should be recommended in patients with obesity and diabetes.

“However, it should also be noted that long-term diabetes remission seems imperative for cancer risk reduction,” she said, “and in a recent meta-analysis by McTigue et al., published in JAMA Surgery, it was shown that patients who had Roux-en-Y gastric bypass had greater weight loss, a slightly higher type 2 diabetes remission rate, less type 2 diabetes relapse, and better long-term glycemic control, compared with those who had sleeve gastrectomy.

“The observed cancer reduction in women with obesity and type 2 diabetes is in line with previous findings showing that cancer risk reduction following bariatric surgery in patients with obesity is more marked among women than men,” Dr. Taube noted. This may be because cancer rates are higher in women with diabetes than in men with diabetes, and common cancer types associated with obesity are female specific.

The main cancers in women were breast cancer, followed by endometrial and colorectal cancer. In men, the main cancers were colorectal, prostate, and urothelial/malignant skin cancer.
 

Study design and findings

It is well established that obesity is a risk factor for 13 types of cancer, and some of these cancers (liver, pancreatic, endometrial, colon and rectal, breast, and bladder) may be related to type 2 diabetes. And bariatric surgery has been shown to reduce cancer risk in patients with obesity.

However, it is not clear how bariatric surgery may affect cancer risk in patients with obesity and type 2 diabetes.

To study this, the researchers examined data from 393 patients who underwent bariatric surgery and 308 patients who received usual obesity treatment, who were part of the SOS study.

The SOS study enrolled men with a body mass index of at least 34 kg/m², and women with a BMI of at least 38 kg/m² who were aged 37-60 years between 1987 and 2001.

The current study outcome – cancer incidence in patients with obesity and type 2 diabetes – was not a prespecified outcome

The intervention groups were matched on 18 variables, including age, sex, serum insulin, alcohol, education, and smoking.

At baseline, the patients had a mean age of about 49 and 60% were women. They had a mean BMI of about 42 and a mean hemoglobin A1c of 7.8%.

On average, patients in the surgery group had lost 27.5 kg and 22.7 kg, and patients in the usual care group had lost 3.2 kg and 4.8 kg, at 2 years and 10 years, respectively.

During a median follow-up of 21 years, there were 74 incident cancers in the control group and 68 cancers in the bariatric surgery group.

The risk of cancer during follow-up was 37% lower in the surgery group than in the usual care group, after multivariable adjustment (adjusted hazard ratio, 0.63; 95% confidence interval, 0.44-0.89; P = .008).

A deeper dive showed that there were 86 incident cancers in women and 56 cancers in men. The risk of cancer was significantly lower in women who had bariatric surgery, compared with those who had usual care (aHR, 0.58; 95% CI 0.38-0.90, P = .016). However, the risk of cancer was not significantly lower in men who had bariatric surgery versus those who had usual care (aHR 0.79, 95% CI, 0.46-1.38; P = .413).

Diabetes remission at 10 years was associated with a 60% reduced cancer incidence (aHR, 0.40; 95% CI, 0.22-0.74, P = .003).

The study was funded by the Swedish state (under an agreement between the Swedish government and the county councils), the Swedish Research Council, the Novo Nordisk Foundation, the Swedish Heart-Lung Foundation, and the Swedish Diabetes Foundation. One author received consulting fees from Johnson & Johnson. The other authors had no relevant financial disclosures.

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

Patients with obesity and type 2 diabetes who underwent bariatric surgery and had 10-year durable diabetes remission had a 60% lower risk of incident cancer than patients who had usual obesity care.

And women who had bariatric surgery had a 42% lower risk of having cancer during a median 21-year follow-up, compared with women who had usual obesity care.

These findings from 701 patients in the Swedish Obese Subjects (SOS) study who had type 2 diabetes were recently published in Diabetes Care.

The results illustrate the “connection between glucose control and cancer prevention” and suggest that “among patients with type 2 diabetes, many cancer cases are preventable,” lead author Kajsa Sjöholm, PhD, associate professor of molecular medicine at Sahlgrenska Academy, University of Gothenburg (Sweden), said in a press release from the university.

“The global epidemic of both obesity and diabetes leads to an increased risk of cancer, as well as an increased risk of premature death,” added senior author Magdalena Taube, PhD, associate professor of molecular medicine in the same academy.

“It has been estimated that, over the next 10-15 years, obesity may cause more cancer cases than smoking in several countries,” she noted. Therefore, “strategies are needed to prevent this development, and our results can provide vital guidance for prevention of cancer in patients with obesity and type 2 diabetes.”
 

Durable diabetes remission seems key

Two-thirds of the patients in the bariatric surgery group had vertical banded gastroplasty (65%), and the rest had adjustable or nonadjustable gastric banding (18%) or gastric bypass (17%).

Each type of bariatric surgery was associated with higher diabetes remission rates, compared with usual care, in a previous study by these researchers, Dr. Taube said in an interview.

“In our present study,” she added, “we observed a nonsignificant trend, where patients with obesity and type 2 diabetes in the highest weight loss tertile (average weight loss, –44.8 kg) had somewhat lower risk of cancer compared to the lowest tertile [average weight loss, –14.9 kg].”

This might suggest, Dr. Taube continued, that with respect to cancer risk, surgery techniques resulting in greater weight loss (for example, Roux-en-Y gastric bypass and sleeve gastrectomy) should be recommended in patients with obesity and diabetes.

“However, it should also be noted that long-term diabetes remission seems imperative for cancer risk reduction,” she said, “and in a recent meta-analysis by McTigue et al., published in JAMA Surgery, it was shown that patients who had Roux-en-Y gastric bypass had greater weight loss, a slightly higher type 2 diabetes remission rate, less type 2 diabetes relapse, and better long-term glycemic control, compared with those who had sleeve gastrectomy.

“The observed cancer reduction in women with obesity and type 2 diabetes is in line with previous findings showing that cancer risk reduction following bariatric surgery in patients with obesity is more marked among women than men,” Dr. Taube noted. This may be because cancer rates are higher in women with diabetes than in men with diabetes, and common cancer types associated with obesity are female specific.

The main cancers in women were breast cancer, followed by endometrial and colorectal cancer. In men, the main cancers were colorectal, prostate, and urothelial/malignant skin cancer.
 

Study design and findings

It is well established that obesity is a risk factor for 13 types of cancer, and some of these cancers (liver, pancreatic, endometrial, colon and rectal, breast, and bladder) may be related to type 2 diabetes. And bariatric surgery has been shown to reduce cancer risk in patients with obesity.

However, it is not clear how bariatric surgery may affect cancer risk in patients with obesity and type 2 diabetes.

To study this, the researchers examined data from 393 patients who underwent bariatric surgery and 308 patients who received usual obesity treatment, who were part of the SOS study.

The SOS study enrolled men with a body mass index of at least 34 kg/m², and women with a BMI of at least 38 kg/m² who were aged 37-60 years between 1987 and 2001.

The current study outcome – cancer incidence in patients with obesity and type 2 diabetes – was not a prespecified outcome

The intervention groups were matched on 18 variables, including age, sex, serum insulin, alcohol, education, and smoking.

At baseline, the patients had a mean age of about 49 and 60% were women. They had a mean BMI of about 42 and a mean hemoglobin A1c of 7.8%.

On average, patients in the surgery group had lost 27.5 kg and 22.7 kg, and patients in the usual care group had lost 3.2 kg and 4.8 kg, at 2 years and 10 years, respectively.

During a median follow-up of 21 years, there were 74 incident cancers in the control group and 68 cancers in the bariatric surgery group.

The risk of cancer during follow-up was 37% lower in the surgery group than in the usual care group, after multivariable adjustment (adjusted hazard ratio, 0.63; 95% confidence interval, 0.44-0.89; P = .008).

A deeper dive showed that there were 86 incident cancers in women and 56 cancers in men. The risk of cancer was significantly lower in women who had bariatric surgery, compared with those who had usual care (aHR, 0.58; 95% CI 0.38-0.90, P = .016). However, the risk of cancer was not significantly lower in men who had bariatric surgery versus those who had usual care (aHR 0.79, 95% CI, 0.46-1.38; P = .413).

Diabetes remission at 10 years was associated with a 60% reduced cancer incidence (aHR, 0.40; 95% CI, 0.22-0.74, P = .003).

The study was funded by the Swedish state (under an agreement between the Swedish government and the county councils), the Swedish Research Council, the Novo Nordisk Foundation, the Swedish Heart-Lung Foundation, and the Swedish Diabetes Foundation. One author received consulting fees from Johnson & Johnson. The other authors had no relevant financial disclosures.

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

Patients with obesity and type 2 diabetes who underwent bariatric surgery and had 10-year durable diabetes remission had a 60% lower risk of incident cancer than patients who had usual obesity care.

And women who had bariatric surgery had a 42% lower risk of having cancer during a median 21-year follow-up, compared with women who had usual obesity care.

These findings from 701 patients in the Swedish Obese Subjects (SOS) study who had type 2 diabetes were recently published in Diabetes Care.

The results illustrate the “connection between glucose control and cancer prevention” and suggest that “among patients with type 2 diabetes, many cancer cases are preventable,” lead author Kajsa Sjöholm, PhD, associate professor of molecular medicine at Sahlgrenska Academy, University of Gothenburg (Sweden), said in a press release from the university.

“The global epidemic of both obesity and diabetes leads to an increased risk of cancer, as well as an increased risk of premature death,” added senior author Magdalena Taube, PhD, associate professor of molecular medicine in the same academy.

“It has been estimated that, over the next 10-15 years, obesity may cause more cancer cases than smoking in several countries,” she noted. Therefore, “strategies are needed to prevent this development, and our results can provide vital guidance for prevention of cancer in patients with obesity and type 2 diabetes.”
 

Durable diabetes remission seems key

Two-thirds of the patients in the bariatric surgery group had vertical banded gastroplasty (65%), and the rest had adjustable or nonadjustable gastric banding (18%) or gastric bypass (17%).

Each type of bariatric surgery was associated with higher diabetes remission rates, compared with usual care, in a previous study by these researchers, Dr. Taube said in an interview.

“In our present study,” she added, “we observed a nonsignificant trend, where patients with obesity and type 2 diabetes in the highest weight loss tertile (average weight loss, –44.8 kg) had somewhat lower risk of cancer compared to the lowest tertile [average weight loss, –14.9 kg].”

This might suggest, Dr. Taube continued, that with respect to cancer risk, surgery techniques resulting in greater weight loss (for example, Roux-en-Y gastric bypass and sleeve gastrectomy) should be recommended in patients with obesity and diabetes.

“However, it should also be noted that long-term diabetes remission seems imperative for cancer risk reduction,” she said, “and in a recent meta-analysis by McTigue et al., published in JAMA Surgery, it was shown that patients who had Roux-en-Y gastric bypass had greater weight loss, a slightly higher type 2 diabetes remission rate, less type 2 diabetes relapse, and better long-term glycemic control, compared with those who had sleeve gastrectomy.

“The observed cancer reduction in women with obesity and type 2 diabetes is in line with previous findings showing that cancer risk reduction following bariatric surgery in patients with obesity is more marked among women than men,” Dr. Taube noted. This may be because cancer rates are higher in women with diabetes than in men with diabetes, and common cancer types associated with obesity are female specific.

The main cancers in women were breast cancer, followed by endometrial and colorectal cancer. In men, the main cancers were colorectal, prostate, and urothelial/malignant skin cancer.
 

Study design and findings

It is well established that obesity is a risk factor for 13 types of cancer, and some of these cancers (liver, pancreatic, endometrial, colon and rectal, breast, and bladder) may be related to type 2 diabetes. And bariatric surgery has been shown to reduce cancer risk in patients with obesity.

However, it is not clear how bariatric surgery may affect cancer risk in patients with obesity and type 2 diabetes.

To study this, the researchers examined data from 393 patients who underwent bariatric surgery and 308 patients who received usual obesity treatment, who were part of the SOS study.

The SOS study enrolled men with a body mass index of at least 34 kg/m², and women with a BMI of at least 38 kg/m² who were aged 37-60 years between 1987 and 2001.

The current study outcome – cancer incidence in patients with obesity and type 2 diabetes – was not a prespecified outcome

The intervention groups were matched on 18 variables, including age, sex, serum insulin, alcohol, education, and smoking.

At baseline, the patients had a mean age of about 49 and 60% were women. They had a mean BMI of about 42 and a mean hemoglobin A1c of 7.8%.

On average, patients in the surgery group had lost 27.5 kg and 22.7 kg, and patients in the usual care group had lost 3.2 kg and 4.8 kg, at 2 years and 10 years, respectively.

During a median follow-up of 21 years, there were 74 incident cancers in the control group and 68 cancers in the bariatric surgery group.

The risk of cancer during follow-up was 37% lower in the surgery group than in the usual care group, after multivariable adjustment (adjusted hazard ratio, 0.63; 95% confidence interval, 0.44-0.89; P = .008).

A deeper dive showed that there were 86 incident cancers in women and 56 cancers in men. The risk of cancer was significantly lower in women who had bariatric surgery, compared with those who had usual care (aHR, 0.58; 95% CI 0.38-0.90, P = .016). However, the risk of cancer was not significantly lower in men who had bariatric surgery versus those who had usual care (aHR 0.79, 95% CI, 0.46-1.38; P = .413).

Diabetes remission at 10 years was associated with a 60% reduced cancer incidence (aHR, 0.40; 95% CI, 0.22-0.74, P = .003).

The study was funded by the Swedish state (under an agreement between the Swedish government and the county councils), the Swedish Research Council, the Novo Nordisk Foundation, the Swedish Heart-Lung Foundation, and the Swedish Diabetes Foundation. One author received consulting fees from Johnson & Johnson. The other authors had no relevant financial disclosures.

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

In a shocking, yet low-key, announcement, the sodium-glucose transporter 2 (SGLT2) inhibitor dapagliflozin (Forxiga, AstraZeneca) has been withdrawn from the market in all EU countries for the indication of type 1 diabetes.

Courtesy AstraZeneca

This includes withdrawal in the U.K., which was part of the EU when dapagliflozin was approved for type 1 diabetes in 2019, but following Brexit, is no longer.

AstraZeneca said the decision is not motivated by safety concerns but points nevertheless to an increased risk of diabetic ketoacidosis (DKA) associated with SGLT2 inhibitors in those with type 1 diabetes, which it said might cause “confusion” among physicians using the drug to treat numerous other indications for which this agent is now approved.

DKA is a potentially dangerous side effect resulting from acid build-up in the blood and is normally accompanied by very high glucose levels. DKA is flagged as a potential side effect in type 2 diabetes but is more common in those with type 1 diabetes. It can also occur as “euglycemic” DKA, which is ketosis but with relatively normal glucose levels (and therefore harder for patients to detect). Euglycemic DKA is thought to be more of a risk in those with type 1 diabetes than in those with type 2 diabetes.

One charity believes concerns around safety are the underlying factor for the withdrawal of dapagliflozin for type 1 diabetes in Europe, suggesting that AstraZeneca might not want to risk income from more lucrative indications – such as type 2 diabetes with much larger patient populations – because of potential concerns from doctors, who may be deterred from prescribing the drug due to concerns about DKA.

JDRF International, a leading global type 1 diabetes charity, called on AstraZeneca in a statement “to explain to people affected by type 1 diabetes why the drug has been withdrawn.”

It added that dapagliflozin is the “only other drug besides insulin” to be licensed in Europe for the treatment of type 1 diabetes and represents a “major advancement since the discovery of insulin 100 years ago.”

Karen Addington, U.K. Chief Executive of JDRF, said it is “appalling” that the drug has been withdrawn, as “many people with type 1 are finding it an effective and useful tool to help manage their glucose levels.”
 

SGLT2 inhibitors never approved for type 1 diabetes in U.S.

Dapagliflozin and other drugs from the SGLT2 inhibitor class had already been approved for the treatment of type 2 diabetes for a number of years when dapagliflozin was approved in early 2019 for the treatment of adults with type 1 diabetes meeting certain criteria by the European Medicines Agency (EMA), which at that time included the U.K. in its remit, based on data from the DEPICT series of phase 3 trials.

SGLT2 inhibitors have also recently shown benefit in other indications, such as heart failure and chronic kidney disease – even in the absence of diabetes – leaving some to label them a new class of wonder drugs.

Following the 2019 EU approval for type 1 diabetes, dapagliflozin was subsequently recommended for this use on the National Health Service (NHS) in England and Wales and was accompanied by guidance from the National Institute for Health and Care Excellence (NICE), which has now had to be withdrawn.

Of note, dapagliflozin was never approved for use in type 1 diabetes in the United States (where it is known as Farxiga), with the U.S. Food and Drug Administration turning it down in July 2019.

An advisory panel for the FDA also later turned down another SGLT2 inhibitor for type 1 diabetes, empagliflozin (Jardiance, Boehringer Ingelheim) in Nov. 2019, as reported by this news organization.
 

Discontinuation ‘not due to safety concerns,’ says AZ

The announcement to discontinue dapagliflozin for the indication of type 1 diabetes in certain adults just two and a half years after its approval in the EU comes as a big surprise, especially as it was made with little fanfare just last month.

In the U.K., AstraZeneca sent a letter to health care professionals on Nov. 2 stating that, from Oct. 25, dapagliflozin 5 mg was “no longer authorized” for the treatment of type 1 diabetes and “should no longer be used” in this patient population.

However, it underlined that other indications for dapagliflozin 5 mg and 10 mg were “not affected by this licensing change,” and it remains available for adults with type 2 diabetes, as well as for the management of symptomatic chronic heart feature with reduced ejection fraction (HFrEF) and chronic kidney disease (CKD).

In the letter, sent by Tom Keith-Roach, country president of AstraZeneca UK, the company asserts that the removal of the type 1 diabetes indication from dapagliflozin is “not due to any safety concern” with the drug “in any indication, including type 1 diabetes.”

It nevertheless goes on to highlight that DKA is a known common side effect of dapagliflozin in type 1 diabetes and, following the announcement, “additional risk minimization measures ... will no longer be available.”

In a separate statement, AstraZeneca said that the decision to remove the indication was made “voluntarily” and had been “agreed” with the Medicines and Healthcare products Regulatory Agency (MHRA) in Great Britain and the equivalent body in Northern Ireland.

“It follows discussions regarding product information changes needed post-approval for dapagliflozin 5 mg specific to type 1 diabetes,” the company said, “which might cause confusion” among physicians treating patients with type 2 diabetes, chronic heart feature with reduced ejection fraction, or CKD.

AstraZeneca told this news organization that similar communications about the withdrawal were issued to health care agencies and health care professionals in all countries of the EU.
 

‘Appalling, devastating, disappointing’ for patients

The announcement has been met with disappointment in some quarters and outrage in others, and questions have been raised as to the explanation given by AstraZeneca for the drug’s withdrawal.

“Although only a small number of people with type 1 diabetes have been using dapagliflozin, we know that those who have been using it will have been benefitting from tighter control of their condition,” Simon O’Neill, director of health intelligence and professional liaison at Diabetes UK, told this news organization.

“It’s disappointing that these people will now need to go back to the drawing board and will have to work with their clinical team to find other ways of better managing their condition.”

Mr. O’Neill said it was “disappointing that AstraZeneca and the MHRA were unable to find a workable solution to allow people living with type 1 diabetes to continue using the drug safely without leading to confusion for clinicians or people living with type 2 diabetes, who also use it.”

Sanjoy Dutta, JDRF International vice president of research, added that the news is “devastating.”

“The impending negative impact of removing a drug like dapagliflozin from any market can be detrimental in the potential for other national medical ruling boards to have confidence in approving it for their citizens,” he added.

“We stand with our type 1 diabetes communities across the globe in demanding an explanation to clarify this removal.”
 

Why not an educational campaign about DKA risk?

In an interview, Hilary Nathan, policy & communications director at JDRF International, explained that the charity has its theories as to why dapagliflozin has been withdrawn for type 1 diabetes.

What AstraZeneca is saying, “and what we don’t agree with them on,” is that the “black triangle” warning that has to be put onto the drug due to the increased risk of DKA in type 1 diabetes is “misunderstood by health care practitioners” outside of that specialty and that “by having that black triangle, it will inhibit take-up in those other markets.”

In other words, “there will be less desire to prescribe it,” ventured Ms. Nathan.

She continued: “For us, we feel that if a medicine is deemed safe and efficacious, it should not be withdrawn because of other patient constituencies.”

“We asked: ‘Why can’t you do an educational awareness campaign about the black triangle?’ And the might of AstraZeneca said it would be too big a task.”

Ms. Nathan was also surprised at how the drug could be withdrawn without any warning or real explanation.

“How is it possible that, when a drug is approved there are multiple stakeholders that are involved in putting forward views and experiences – both from the clinical and patient advocacy communities, as well as obviously the pharmaceutical community – yet [a drug] can be withdrawn by a ... company that may well have conflicts of interest around commercial take-up.”

She added: “I feel that there are potentially motives around the withdrawal that AstraZeneca are still not being clear about.”

Perhaps a further clue as to the real motives behind the withdrawal can be found in an announcement, just last week, by the British MHRA.

“The decision by the marketing authorization holder to voluntarily withdraw the indication in type 1 diabetes followed commercial considerations due to a specific European-wide regulatory requirement for this authorization,” it said.

“The decision was not driven by any new safety concerns, such as the already known increased risk of DKA in type 1 diabetes compared with type 2 diabetes.”

Separately, a new in-depth investigation into when Johnson & Johnson, which markets another SGLT2 inhibitor, canagliflozin (Invokana), first knew that its agent was associated with DKA has revealed multiple discrepancies in staff accounts. Some claim the company knew as early as 2010 that canagliflozin – first approved for type 2 diabetes in the United States in 2013 – could increase the risk of DKA. It was not until May 2015 that the FDA first issued a warning about the potential risk of DKA associated with use of SGLT2 inhibitors, with the EMA following suit a month later. In Dec. 2015, the FDA updated the labels for all SGLT2 inhibitors approved in the United States at that time – canagliflozin, empagliflozin, and dapagliflozin – to include the risks for ketoacidosis (and urinary tract infections).

Forxiga (dapagliflozin) is manufactured by AstraZeneca. No relevant financial relationships declared.

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

In a shocking, yet low-key, announcement, the sodium-glucose transporter 2 (SGLT2) inhibitor dapagliflozin (Forxiga, AstraZeneca) has been withdrawn from the market in all EU countries for the indication of type 1 diabetes.

Courtesy AstraZeneca

This includes withdrawal in the U.K., which was part of the EU when dapagliflozin was approved for type 1 diabetes in 2019, but following Brexit, is no longer.

AstraZeneca said the decision is not motivated by safety concerns but points nevertheless to an increased risk of diabetic ketoacidosis (DKA) associated with SGLT2 inhibitors in those with type 1 diabetes, which it said might cause “confusion” among physicians using the drug to treat numerous other indications for which this agent is now approved.

DKA is a potentially dangerous side effect resulting from acid build-up in the blood and is normally accompanied by very high glucose levels. DKA is flagged as a potential side effect in type 2 diabetes but is more common in those with type 1 diabetes. It can also occur as “euglycemic” DKA, which is ketosis but with relatively normal glucose levels (and therefore harder for patients to detect). Euglycemic DKA is thought to be more of a risk in those with type 1 diabetes than in those with type 2 diabetes.

One charity believes concerns around safety are the underlying factor for the withdrawal of dapagliflozin for type 1 diabetes in Europe, suggesting that AstraZeneca might not want to risk income from more lucrative indications – such as type 2 diabetes with much larger patient populations – because of potential concerns from doctors, who may be deterred from prescribing the drug due to concerns about DKA.

JDRF International, a leading global type 1 diabetes charity, called on AstraZeneca in a statement “to explain to people affected by type 1 diabetes why the drug has been withdrawn.”

It added that dapagliflozin is the “only other drug besides insulin” to be licensed in Europe for the treatment of type 1 diabetes and represents a “major advancement since the discovery of insulin 100 years ago.”

Karen Addington, U.K. Chief Executive of JDRF, said it is “appalling” that the drug has been withdrawn, as “many people with type 1 are finding it an effective and useful tool to help manage their glucose levels.”
 

SGLT2 inhibitors never approved for type 1 diabetes in U.S.

Dapagliflozin and other drugs from the SGLT2 inhibitor class had already been approved for the treatment of type 2 diabetes for a number of years when dapagliflozin was approved in early 2019 for the treatment of adults with type 1 diabetes meeting certain criteria by the European Medicines Agency (EMA), which at that time included the U.K. in its remit, based on data from the DEPICT series of phase 3 trials.

SGLT2 inhibitors have also recently shown benefit in other indications, such as heart failure and chronic kidney disease – even in the absence of diabetes – leaving some to label them a new class of wonder drugs.

Following the 2019 EU approval for type 1 diabetes, dapagliflozin was subsequently recommended for this use on the National Health Service (NHS) in England and Wales and was accompanied by guidance from the National Institute for Health and Care Excellence (NICE), which has now had to be withdrawn.

Of note, dapagliflozin was never approved for use in type 1 diabetes in the United States (where it is known as Farxiga), with the U.S. Food and Drug Administration turning it down in July 2019.

An advisory panel for the FDA also later turned down another SGLT2 inhibitor for type 1 diabetes, empagliflozin (Jardiance, Boehringer Ingelheim) in Nov. 2019, as reported by this news organization.
 

Discontinuation ‘not due to safety concerns,’ says AZ

The announcement to discontinue dapagliflozin for the indication of type 1 diabetes in certain adults just two and a half years after its approval in the EU comes as a big surprise, especially as it was made with little fanfare just last month.

In the U.K., AstraZeneca sent a letter to health care professionals on Nov. 2 stating that, from Oct. 25, dapagliflozin 5 mg was “no longer authorized” for the treatment of type 1 diabetes and “should no longer be used” in this patient population.

However, it underlined that other indications for dapagliflozin 5 mg and 10 mg were “not affected by this licensing change,” and it remains available for adults with type 2 diabetes, as well as for the management of symptomatic chronic heart feature with reduced ejection fraction (HFrEF) and chronic kidney disease (CKD).

In the letter, sent by Tom Keith-Roach, country president of AstraZeneca UK, the company asserts that the removal of the type 1 diabetes indication from dapagliflozin is “not due to any safety concern” with the drug “in any indication, including type 1 diabetes.”

It nevertheless goes on to highlight that DKA is a known common side effect of dapagliflozin in type 1 diabetes and, following the announcement, “additional risk minimization measures ... will no longer be available.”

In a separate statement, AstraZeneca said that the decision to remove the indication was made “voluntarily” and had been “agreed” with the Medicines and Healthcare products Regulatory Agency (MHRA) in Great Britain and the equivalent body in Northern Ireland.

“It follows discussions regarding product information changes needed post-approval for dapagliflozin 5 mg specific to type 1 diabetes,” the company said, “which might cause confusion” among physicians treating patients with type 2 diabetes, chronic heart feature with reduced ejection fraction, or CKD.

AstraZeneca told this news organization that similar communications about the withdrawal were issued to health care agencies and health care professionals in all countries of the EU.
 

‘Appalling, devastating, disappointing’ for patients

The announcement has been met with disappointment in some quarters and outrage in others, and questions have been raised as to the explanation given by AstraZeneca for the drug’s withdrawal.

“Although only a small number of people with type 1 diabetes have been using dapagliflozin, we know that those who have been using it will have been benefitting from tighter control of their condition,” Simon O’Neill, director of health intelligence and professional liaison at Diabetes UK, told this news organization.

“It’s disappointing that these people will now need to go back to the drawing board and will have to work with their clinical team to find other ways of better managing their condition.”

Mr. O’Neill said it was “disappointing that AstraZeneca and the MHRA were unable to find a workable solution to allow people living with type 1 diabetes to continue using the drug safely without leading to confusion for clinicians or people living with type 2 diabetes, who also use it.”

Sanjoy Dutta, JDRF International vice president of research, added that the news is “devastating.”

“The impending negative impact of removing a drug like dapagliflozin from any market can be detrimental in the potential for other national medical ruling boards to have confidence in approving it for their citizens,” he added.

“We stand with our type 1 diabetes communities across the globe in demanding an explanation to clarify this removal.”
 

Why not an educational campaign about DKA risk?

In an interview, Hilary Nathan, policy & communications director at JDRF International, explained that the charity has its theories as to why dapagliflozin has been withdrawn for type 1 diabetes.

What AstraZeneca is saying, “and what we don’t agree with them on,” is that the “black triangle” warning that has to be put onto the drug due to the increased risk of DKA in type 1 diabetes is “misunderstood by health care practitioners” outside of that specialty and that “by having that black triangle, it will inhibit take-up in those other markets.”

In other words, “there will be less desire to prescribe it,” ventured Ms. Nathan.

She continued: “For us, we feel that if a medicine is deemed safe and efficacious, it should not be withdrawn because of other patient constituencies.”

“We asked: ‘Why can’t you do an educational awareness campaign about the black triangle?’ And the might of AstraZeneca said it would be too big a task.”

Ms. Nathan was also surprised at how the drug could be withdrawn without any warning or real explanation.

“How is it possible that, when a drug is approved there are multiple stakeholders that are involved in putting forward views and experiences – both from the clinical and patient advocacy communities, as well as obviously the pharmaceutical community – yet [a drug] can be withdrawn by a ... company that may well have conflicts of interest around commercial take-up.”

She added: “I feel that there are potentially motives around the withdrawal that AstraZeneca are still not being clear about.”

Perhaps a further clue as to the real motives behind the withdrawal can be found in an announcement, just last week, by the British MHRA.

“The decision by the marketing authorization holder to voluntarily withdraw the indication in type 1 diabetes followed commercial considerations due to a specific European-wide regulatory requirement for this authorization,” it said.

“The decision was not driven by any new safety concerns, such as the already known increased risk of DKA in type 1 diabetes compared with type 2 diabetes.”

Separately, a new in-depth investigation into when Johnson & Johnson, which markets another SGLT2 inhibitor, canagliflozin (Invokana), first knew that its agent was associated with DKA has revealed multiple discrepancies in staff accounts. Some claim the company knew as early as 2010 that canagliflozin – first approved for type 2 diabetes in the United States in 2013 – could increase the risk of DKA. It was not until May 2015 that the FDA first issued a warning about the potential risk of DKA associated with use of SGLT2 inhibitors, with the EMA following suit a month later. In Dec. 2015, the FDA updated the labels for all SGLT2 inhibitors approved in the United States at that time – canagliflozin, empagliflozin, and dapagliflozin – to include the risks for ketoacidosis (and urinary tract infections).

Forxiga (dapagliflozin) is manufactured by AstraZeneca. No relevant financial relationships declared.

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

In a shocking, yet low-key, announcement, the sodium-glucose transporter 2 (SGLT2) inhibitor dapagliflozin (Forxiga, AstraZeneca) has been withdrawn from the market in all EU countries for the indication of type 1 diabetes.

Courtesy AstraZeneca

This includes withdrawal in the U.K., which was part of the EU when dapagliflozin was approved for type 1 diabetes in 2019, but following Brexit, is no longer.

AstraZeneca said the decision is not motivated by safety concerns but points nevertheless to an increased risk of diabetic ketoacidosis (DKA) associated with SGLT2 inhibitors in those with type 1 diabetes, which it said might cause “confusion” among physicians using the drug to treat numerous other indications for which this agent is now approved.

DKA is a potentially dangerous side effect resulting from acid build-up in the blood and is normally accompanied by very high glucose levels. DKA is flagged as a potential side effect in type 2 diabetes but is more common in those with type 1 diabetes. It can also occur as “euglycemic” DKA, which is ketosis but with relatively normal glucose levels (and therefore harder for patients to detect). Euglycemic DKA is thought to be more of a risk in those with type 1 diabetes than in those with type 2 diabetes.

One charity believes concerns around safety are the underlying factor for the withdrawal of dapagliflozin for type 1 diabetes in Europe, suggesting that AstraZeneca might not want to risk income from more lucrative indications – such as type 2 diabetes with much larger patient populations – because of potential concerns from doctors, who may be deterred from prescribing the drug due to concerns about DKA.

JDRF International, a leading global type 1 diabetes charity, called on AstraZeneca in a statement “to explain to people affected by type 1 diabetes why the drug has been withdrawn.”

It added that dapagliflozin is the “only other drug besides insulin” to be licensed in Europe for the treatment of type 1 diabetes and represents a “major advancement since the discovery of insulin 100 years ago.”

Karen Addington, U.K. Chief Executive of JDRF, said it is “appalling” that the drug has been withdrawn, as “many people with type 1 are finding it an effective and useful tool to help manage their glucose levels.”
 

SGLT2 inhibitors never approved for type 1 diabetes in U.S.

Dapagliflozin and other drugs from the SGLT2 inhibitor class had already been approved for the treatment of type 2 diabetes for a number of years when dapagliflozin was approved in early 2019 for the treatment of adults with type 1 diabetes meeting certain criteria by the European Medicines Agency (EMA), which at that time included the U.K. in its remit, based on data from the DEPICT series of phase 3 trials.

SGLT2 inhibitors have also recently shown benefit in other indications, such as heart failure and chronic kidney disease – even in the absence of diabetes – leaving some to label them a new class of wonder drugs.

Following the 2019 EU approval for type 1 diabetes, dapagliflozin was subsequently recommended for this use on the National Health Service (NHS) in England and Wales and was accompanied by guidance from the National Institute for Health and Care Excellence (NICE), which has now had to be withdrawn.

Of note, dapagliflozin was never approved for use in type 1 diabetes in the United States (where it is known as Farxiga), with the U.S. Food and Drug Administration turning it down in July 2019.

An advisory panel for the FDA also later turned down another SGLT2 inhibitor for type 1 diabetes, empagliflozin (Jardiance, Boehringer Ingelheim) in Nov. 2019, as reported by this news organization.
 

Discontinuation ‘not due to safety concerns,’ says AZ

The announcement to discontinue dapagliflozin for the indication of type 1 diabetes in certain adults just two and a half years after its approval in the EU comes as a big surprise, especially as it was made with little fanfare just last month.

In the U.K., AstraZeneca sent a letter to health care professionals on Nov. 2 stating that, from Oct. 25, dapagliflozin 5 mg was “no longer authorized” for the treatment of type 1 diabetes and “should no longer be used” in this patient population.

However, it underlined that other indications for dapagliflozin 5 mg and 10 mg were “not affected by this licensing change,” and it remains available for adults with type 2 diabetes, as well as for the management of symptomatic chronic heart feature with reduced ejection fraction (HFrEF) and chronic kidney disease (CKD).

In the letter, sent by Tom Keith-Roach, country president of AstraZeneca UK, the company asserts that the removal of the type 1 diabetes indication from dapagliflozin is “not due to any safety concern” with the drug “in any indication, including type 1 diabetes.”

It nevertheless goes on to highlight that DKA is a known common side effect of dapagliflozin in type 1 diabetes and, following the announcement, “additional risk minimization measures ... will no longer be available.”

In a separate statement, AstraZeneca said that the decision to remove the indication was made “voluntarily” and had been “agreed” with the Medicines and Healthcare products Regulatory Agency (MHRA) in Great Britain and the equivalent body in Northern Ireland.

“It follows discussions regarding product information changes needed post-approval for dapagliflozin 5 mg specific to type 1 diabetes,” the company said, “which might cause confusion” among physicians treating patients with type 2 diabetes, chronic heart feature with reduced ejection fraction, or CKD.

AstraZeneca told this news organization that similar communications about the withdrawal were issued to health care agencies and health care professionals in all countries of the EU.
 

‘Appalling, devastating, disappointing’ for patients

The announcement has been met with disappointment in some quarters and outrage in others, and questions have been raised as to the explanation given by AstraZeneca for the drug’s withdrawal.

“Although only a small number of people with type 1 diabetes have been using dapagliflozin, we know that those who have been using it will have been benefitting from tighter control of their condition,” Simon O’Neill, director of health intelligence and professional liaison at Diabetes UK, told this news organization.

“It’s disappointing that these people will now need to go back to the drawing board and will have to work with their clinical team to find other ways of better managing their condition.”

Mr. O’Neill said it was “disappointing that AstraZeneca and the MHRA were unable to find a workable solution to allow people living with type 1 diabetes to continue using the drug safely without leading to confusion for clinicians or people living with type 2 diabetes, who also use it.”

Sanjoy Dutta, JDRF International vice president of research, added that the news is “devastating.”

“The impending negative impact of removing a drug like dapagliflozin from any market can be detrimental in the potential for other national medical ruling boards to have confidence in approving it for their citizens,” he added.

“We stand with our type 1 diabetes communities across the globe in demanding an explanation to clarify this removal.”
 

Why not an educational campaign about DKA risk?

In an interview, Hilary Nathan, policy & communications director at JDRF International, explained that the charity has its theories as to why dapagliflozin has been withdrawn for type 1 diabetes.

What AstraZeneca is saying, “and what we don’t agree with them on,” is that the “black triangle” warning that has to be put onto the drug due to the increased risk of DKA in type 1 diabetes is “misunderstood by health care practitioners” outside of that specialty and that “by having that black triangle, it will inhibit take-up in those other markets.”

In other words, “there will be less desire to prescribe it,” ventured Ms. Nathan.

She continued: “For us, we feel that if a medicine is deemed safe and efficacious, it should not be withdrawn because of other patient constituencies.”

“We asked: ‘Why can’t you do an educational awareness campaign about the black triangle?’ And the might of AstraZeneca said it would be too big a task.”

Ms. Nathan was also surprised at how the drug could be withdrawn without any warning or real explanation.

“How is it possible that, when a drug is approved there are multiple stakeholders that are involved in putting forward views and experiences – both from the clinical and patient advocacy communities, as well as obviously the pharmaceutical community – yet [a drug] can be withdrawn by a ... company that may well have conflicts of interest around commercial take-up.”

She added: “I feel that there are potentially motives around the withdrawal that AstraZeneca are still not being clear about.”

Perhaps a further clue as to the real motives behind the withdrawal can be found in an announcement, just last week, by the British MHRA.

“The decision by the marketing authorization holder to voluntarily withdraw the indication in type 1 diabetes followed commercial considerations due to a specific European-wide regulatory requirement for this authorization,” it said.

“The decision was not driven by any new safety concerns, such as the already known increased risk of DKA in type 1 diabetes compared with type 2 diabetes.”

Separately, a new in-depth investigation into when Johnson & Johnson, which markets another SGLT2 inhibitor, canagliflozin (Invokana), first knew that its agent was associated with DKA has revealed multiple discrepancies in staff accounts. Some claim the company knew as early as 2010 that canagliflozin – first approved for type 2 diabetes in the United States in 2013 – could increase the risk of DKA. It was not until May 2015 that the FDA first issued a warning about the potential risk of DKA associated with use of SGLT2 inhibitors, with the EMA following suit a month later. In Dec. 2015, the FDA updated the labels for all SGLT2 inhibitors approved in the United States at that time – canagliflozin, empagliflozin, and dapagliflozin – to include the risks for ketoacidosis (and urinary tract infections).

Forxiga (dapagliflozin) is manufactured by AstraZeneca. No relevant financial relationships declared.

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