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  • Frequent non-severe...

Frequent non-severe hypoglycemia tied to severe hypoglycemia, MACE, and death: LEADER trial

MedhaBy MedhaPublished On 2021-12-27T09:00:33+05:30  |  Updated On 2021-12-27T09:00:37+05:30
Frequent non-severe hypoglycemia tied to severe hypoglycemia, MACE, and death: LEADER trial

UK: Data from the LEADER trial showed that in patients with type 2 diabetes, higher rates of non-severe hypoglycaemic episodes (NSHEs) are associated with a higher risk of severe hypoglycemia and adverse cardiovascular (CV) outcomes. Adverse cardiovascular outcomes include cardiovascular death, MACE, and all-cause mortality. This implies that regardless of the cause of this association, it...

UK: Data from the LEADER trial showed that in patients with type 2 diabetes, higher rates of non-severe hypoglycaemic episodes (NSHEs) are associated with a higher risk of severe hypoglycemia and adverse cardiovascular (CV) outcomes. Adverse cardiovascular outcomes include cardiovascular death, MACE, and all-cause mortality.

This implies that regardless of the cause of this association, it is important to identify individuals with high rates of hypoglycemia so that the potential risk of CV events can be managed and action can be taken to reduce NSHEs. The findings from this post hoc analysis of the LEADER trial -- a double-blind, multicentre, placebo-controlled trial -- were published in the journal Diabetologia. The trial had found that liraglutide significantly reduced the risk of MACE compared with the placebo. 

A common side effect of some other antihyperglycaemic agents used for diabetes treatment is hypoglycemia. Trials of glycaemic control in type 2 diabetes have shown severe hypoglycemia to be associated with adverse cardiovascular events. The relationship between and NSHEs and severe hypoglycemia has been documented in type 2 diabetes patients, however, an association between more frequent NSHEs and cardiovascular events has not been verified. 

Against the above background, Simon R. Heller and the team carried out a post hoc analysis of the LEADER (Liraglutide Effect and Action in Diabetes: Evaluation of Cardiovascular Outcome Results) trial to confirm whether there is an association between NSHEs and severe hypoglycaemic episodes in people with type 2 diabetes. In addition, they also investigated the possible association between NSHEs and major adverse cardiac events (MACE), cardiovascular death, and all-cause mortality.

In the post hoc analysis, the researchers explored in all LEADER participants, whether the annual rate of NSHEs was associated with time to first severe hypoglycaemic episode, time to first MACE, time to cardiovascular death, and time to all-cause mortality. NSHEs were defined as self-measured plasma glucose <3.1 mmol/l [56 mg/dl]. The first severe hypoglycaemic episode was defined as an episode requiring the assistance of another person. 

For HR estimates, participants with <2 NSHEs per year were used as reference. Cox regression with a time-varying covariate was used. 

Key findings include:

  • The authors demonstrated an association between NSHEs (2–11 NSHEs per year and ≥12 NSHEs per year) and severe hypoglycaemic episodes (unadjusted HRs 1.98 and 5.01, respectively), which was consistent when baseline characteristics were accounted for.
  • While no association was found between participants with 2–11 NSHEs per year and adverse cardiovascular outcomes, higher rates of NSHEs (≥12 episodes per year) were associated with a higher risk of MACE (HR 1.50), cardiovascular death (HR 2.08), and overall death (HR 1.80).

"The findings showed that higher rates of NSHEs are associated with higher rates of severe hypoglycemia, MACE, cardiovascular death and all-cause mortality in patients with type 2 diabetes," the authors wrote.

The authors strongly argue that whatever the underlying driver of the link between CVD and hypoglycemia, it is important that healthcare professionals and patients take steps to reduce this common complication of treatment. 

Reference:

Heller, S.R., Geybels, M.S., Iqbal, A. et al. A higher non-severe hypoglycaemia rate is associated with an increased risk of subsequent severe hypoglycaemia and major adverse cardiovascular events in individuals with type 2 diabetes in the LEADER study. Diabetologia 65, 55–64 (2022). https://doi.org/10.1007/s00125-021-05556-7

Diabetologia hypoglycemia type 2 diabetes blood sugar 
Source : Diabetologia
Medha
Medha

    Medha Baranwal joined Medical Dialogues as an Editor in 2018 for Speciality Medical Dialogues. She covers several medical specialties including Cardiac Sciences, Dentistry, Diabetes and Endo, Diagnostics, ENT, Gastroenterology, Neurosciences, and Radiology. She has completed her Bachelors in Biomedical Sciences from DU and then pursued Masters in Biotechnology from Amity University. She has a working experience of 5 years in the field of medical research writing, scientific writing, content writing, and content management. She can be contacted at  editorial@medicaldialogues.in. Contact no. 011-43720751

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