Heart failure & cardiomyopathiesRandomised controlled trial

The microRNA inhibitor CDR132L in patients with reduced left ventricular ejection fraction after myocardial infarction: a randomized phase 2 trial

Nat MedPublished

  • Randomised controlled trial
  • multinational
  • double-blind
  • placebo-controlled
  • phase 2

Study context

Population
Patients with recent myocardial infarction (MI) (3–14 days) and left ventricular (LV) systolic dysfunction280 in modified ITT
Participants
294 patients
Comparison
CDR132L vs placebo
Primary endpoint
Percentage change in LV end-systolic volume index
Follow-up
6 months

Primary result

As reported in the abstract

  • Improved in all groups but no significant difference between CDR132L (5 and 10 mg kg-1) and placebo
  • modified intention-to-treat

Secondary outcomes

LVEF, global longitudinal strain, NT-proBNP

No significant difference between CDR132L and placebo

Safety

Tolerability and toxicity

Well tolerated; no hepatic, renal, hematologic or cardiac toxicity signals

Original publication

The microRNA inhibitor CDR132L in patients with reduced left ventricular ejection fraction after myocardial infarction: a randomized phase 2 trial. Nat Med. Published 10 May 2026. doi:10.1038/s41591-026-04408-4

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