Heart failure & cardiomyopathies

Early Initiation of SGLT2 inhibitor and Mortality in Heart Failure With Reduced Ejection Fraction : A Target Trial Emulation Study

Eur Heart J Cardiovasc PharmacotherPublished Target trial emulation study

Main finding · All-cause mortalityResult — go to the resultRD −1.1 percentage points 95% CI −2.0 to −0.2

Authors' conclusion

Initiation of an SGLT2i within 30 days of HFrEF diagnosis was associated with lower one-year mortality and HF hospitalization compared with no initiation. These findings support prioritizing early SGLT2i initiation as part of foundational therapy for HFrEF in routine clinical practice.

Study context

Population
Adults with incident heart failure with reduced ejection fraction (HFrEF) eligible for SGLT2i therapy, Danish nationwide registers, July 2020 to August 2024patients with incident HFrEF
Participants
10,346 adults
Comparison
SGLT2i initiators vs Non-initiators
  • SGLT2i initiatorsn = 3,268
  • Non-initiatorsn = 7,078
Outcome
All-cause mortality
Follow-up
One year
Methodological detailsDanish nationwide register data, clone-censor-weight design
  • Danish nationwide register data
  • Clone-censor-weight design

Main finding

As reported in the abstract

RD

−1.1 percentage points

95% CI −2.0 to −0.2

Events by group

SGLT2i initiators

226

events

Non-initiators

637

events

SGLT2i initiators vs Non-initiators
RD −1.1 percentage points (95% CI −2.0 to −0.2)

Secondary outcomes

OutcomeRD (percentage points) (95% CI)
HF hospitalization (secondary outcome) · one year−3.4 (−3.9 to −2.9)
  • HF hospitalization (secondary outcome): lower one-year risk of HF hospitalization with initiation within 30 days

Original publication

Early Initiation of SGLT2 inhibitor and Mortality in Heart Failure With Reduced Ejection Fraction : A Target Trial Emulation Study. Eur Heart J Cardiovasc Pharmacother. Published 26 October 2026. doi:10.1093/ehjcvp/pvag094

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