CI

At a glance

ClinicalIndex Comparison Record
Phase 3Active· 655 enrolled
Drug / intervention
Vutrisiran +1 moredrug
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04153149
NCT04153149Phase 3Active

HELIOS-B: A Phase 3, Randomized, Double-blind, Placebo-controlled, Multicenter Study to Evaluate the Efficacy and Safety of Vutrisiran in Patients With Transthyretin Amyloidosis With Cardiomyopathy (ATTR Amyloidosis With Cardiomyopathy)

Alnylam Pharmaceuticals·interventional·Posted Nov 6, 2019·Updated Jan 12, 2026

In Brief

A Phase 3 clinical trial evaluating Vutrisiran and Sterile Normal Saline (0.9% NaCl) for Transthyretin Amyloidosis (ATTR) With Cardiomyopathy. Active but no longer recruiting, targeting 655 participants across 119 sites in 32 countries.

Detailed Summary

This study will evaluate the efficacy and safety of vutrisiran 25 mg administered subcutaneously (SC) once every 3 months (q3M) compared to placebo in participants with ATTR amyloidosis with cardiomyopathy.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesArgentina, Australia, Austria, Belgium, Canada, Croatia, Czechia, Denmark, France, Germany, Hungary, Ireland, Israel, Japan, Latvia, Lebanon, Lithuania, Malaysia, Moldova, Netherlands, Norway, Peru, Poland, Portugal, Saudi Arabia, Slovenia, South Korea, Spain, Sweden, Thailand, United Kingdom, United States
Collaborators--

Timeline

Phase 3Active
20202021202220232024202520262027
First PostedNov 6, 2019
Enrollment StartNov 26, 2019
Primary CompletionMay 8, 2024
Study CompletionDec 2, 2026
TodayJul 2, 2026
Enrollment to primary: 4.5 yearsPosted 6.7 years ago

Interventions

Vutrisirandrug

Vutrisiran will be administered by SC injection.

Sterile Normal Saline (0.9% NaCl)drug

Sterile normal saline (0.9% NaCl) will be administered by SC injection.