Cardiometabolic & kidneySecondary analysis

Relationship between hypoglycaemia, cardiovascular outcomes, and empagliflozin treatment in the EMPA-REG OUTCOME® trial

Eur Heart JPublished

  • Secondary analysis of the EMPA-REG OUTCOME randomised trial
  • post hoc exploratory analysis

Authors' conclusion

In this post hoc exploratory analysis, hypoglycaemia was associated with an increased risk of HHF and MI. Hypoglycaemia risk was not increased with empagliflozin and incident hypoglycaemia did not attenuate its cardio-protective effects.

Study context

Population
Patients with T2DM (HbA1c 7–10%) in EMPA-REG OUTCOME
Participants
7,020 patients
Comparison
Empagliflozin vs placebo, by incident hypoglycaemia
Primary endpoint
Relationship between on-trial hypoglycaemia and CV outcomes, and effects of empagliflozin on outcomes by incident hypoglycaemia
Follow-up
Median 3.1 years

Primary result

As reported in the abstract

CV outcomes by on-trial hypoglycaemia (placebo group)
Each group vs placeboHazard ratio (95% CI)
HYPO-broadHHF, placebo group
1.91(1.25–2.93)
HYPO-strictHHF, placebo group
1.72(1.06–2.78)
HYPO-broadMI; not with HYPO-strict
1.56(1.06–2.29)
Empagliflozin improved cardiovascular (CV) outcomes regardless of hypoglycaemia
P-for interactions >0.05

Safety

Incident hypoglycaemia

HYPO-broad in each group
28%
HYPO-strict
19%

Original publication

Relationship between hypoglycaemia, cardiovascular outcomes, and empagliflozin treatment in the EMPA-REG OUTCOME® trial. Eur Heart J. Published 31 August 2019. doi:10.1093/eurheartj/ehz621

Summarised from the published abstract; every number is checked against it