Outpatient worsening heart failure in transthyretin amyloid cardiomyopathy: Findings from ATTRibute-CM

Abstract

Background: Acoramidis, an oral transthyretin stabilizer that achieves near-complete (≥90%) transthyretin stabilization, demonstrated significant clinical benefit over placebo in participants with transthyretin amyloid cardiomyopathy (ATTR-CM) in the phase 3 ATTRibute-CM trial (NCT03860935).

Methods: Post-hoc exploratory analyses of ATTRibute-CM were performed to evaluate associations between outpatient worsening heart failure (HF) (initiation/escalation of oral loop diuretics) and clinical outcomes, the impact of acoramidis on outpatient worsening HF, and the effect of acoramidis on clinical outcomes adjusting for time-dependent first outpatient worsening HF.