Conference Coverage

Fasting glucose fluctuations, severe hypoglycemia up T2DM death risk


 

Timing of severe hypoglycemia could be vital

Severe hypoglycemia is under-reported and there is still concern over inducing hypoglycemia, which “conflicts with treatment success,” observed Thomas Pieber, MD, who presented the DEVOTE 3 findings on the relationship between severe hypoglycemia and outcomes.

Dr. Thomas Pieber, professor of medicine and chair of the departments of internal medicine and of endocrinology and diabetes at the Medical University of Graz in Austria Sara Freeman/Frontline Medical News

Dr. Thomas Pieber

Dr. Pieber, who is professor of medicine and chair of the departments of internal medicine and of endocrinology and diabetes at the Medical University of Graz (Austria), cited survey data showing people with diabetes, both type 1 and type 2, modifying their doses of insulin following a hypoglycemic episode, more so if the episode is severe.

“Up to 80% of us are concerned about the risk of hypoglycemia and we are not treating glycemic control as aggressively as we would do if there was not any worry about hypoglycemia,” Dr. Pieber said, referring to primary care physicians and diabetes specialists.

Talking about the DEVOTE 3 results, Dr. Pieber noted: “There was no significant association between severe hypoglycemia and MACE, but there was a significantly higher risk of cardiovascular death following a severe hypoglycemia event.” He reminded the audience that an episode of severe hypoglycemia was one which required the assistance of another person, as defined by International Hypoglycemia Study Group which has been acknowledged by both the ADA and EASD.

“These data we have analyzed support a temporal relationship between severe hypoglycemia and all-cause mortality,” Dr. Pieber, adding “the findings indicate that severe hypoglycemia is associated with higher subsequent mortality.”

Predicting severe hypos

“There are well-known factors that influence the risk of having a severe hypoglycemic event,” commented another of the DEVOTE study investigators, John Buse, MD, PhD, of the University of North Carolina School of Medicine at Chapel Hill. These include the insulin treatment regimen, the duration of diabetes, sex, and baseline HbA1c, to pick the more traditional ones. Additional ones that a post-hoc analysis of the DEVOTE data identified are baseline renal function, prior stroke, low-to-high-density lipoprotein ratio, diastolic blood pressure, hepatic impairment, and smoking status. Age, another traditional risk factor, was identified as well and all these went in to create the DEVOTE severe hypoglycemia risk prediction model.

Dr. John Buse University of North Carolina School of Medicine at Chapel Hill Sara Freeman/Frontline Medical News

Dr. John Buse

“The DEVOTE severe hypoglycemia risk score was developed to identify patients at high risk of severe hypoglycemia,” Dr. Buse said. Such patients need extra attention and support from physicians, he proposed, and using the score can help identify those that are at risk and subsequent risk for MACE and all-cause mortality.

The DEVOTE hypoglycemia risk score is currently a work in progress; the app can be seen at http://www.hyporiskscore.com/. DEVOTE was funded by Novo Nordisk. Slides presented at the EASD meeting are available for download at https://tracs.unc.edu/DEVOTE.

Dr. Rutter disclosed receiving honoraria and funding to attend educational meetings from Novo Nordisk and honoraria and consulting fees from Ascensia, Cell Catapult, and Roche Diabetes Care.

Dr. Poulter has received speaker fees and consultancy fees from Novo Nordisk, Servier, Takeda, and AstraZeneca; and grants for his research group relating to type 2 diabetes mellitus from Diabetes UK, the National Institute for Health Research Efficacy and Mechanism Evaluation, and the Julius Clinical and the British Heart Foundation.

Dr. Zinman has received grant support from Novo Nordisk, Boehringer Ingelheim, and AstraZeneca. He disclosed receiving consulting fees from Novo Nordisk, AstraZeneca, Boehringer Ingelheim, Eli Lilly and Company, Janssen, Merck, Sharp & Dohme, and Sanofi.

Dr. Pieber disclosed receiving received research support from Novo Nordisk and AstraZeneca paid directly to his institution and personal honoraria from Novo Nordisk, AstraZeneca, Bristol-Myers Squibb, Eli Lilly, and Roche Diabetes Care. Dr. Pieber is the Chief Scientific Officer of the Center for Biomarker Research in Medicine, a publicly funded biomarker research company.

Dr. Buse reported receiving contracted consulting fees, paid to his institution, and travel support from Novo Nordisk, Eli Lilly and Company, GI Dynamics, Elcelyx, Merck, Metavention, vTv Pharma, PhaseBio, AstraZeneca, Dance Biopharm, Sanofi, Lexicon Pharmaceuticals, Orexigen, Takeda, Adocia, Roche, NovaTarg, Shenzhen High Tide, Fractyl, and Dexcom. He has also received consultancy fees and grant support from Eli Lilly and Company, Bristol-Myers Squibb, GI Dynamics, Merck, PhaseBio, AstraZeneca, Medtronic Minimed, Sanofi, Johnson & Johnson, Andromeda, Boehringer Ingelheim, GlaxoSmithKline, MacroGenics, Intarcia Therapeutics, Lexicon Pharmaceuticals, Scion NeuroStim, Orexigen, Takeda, Theracos, and Bayer. Dr. Buse has also received fees and holds stock options in PhaseBio and Insulin Algorithm, as well as serving on the board of the AstraZeneca Healthcare Foundation.

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