HomeTrialNCT04153149
NCT04153149Phase 3ACTIVE NOT RECRUITING

HELIOS-B: A Study to Evaluate Vutrisiran in Patients With Transthyretin Amyloidosis With Cardiomyopathy

Study 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.

View on ClinicalTrials.gov ↗
Study Details
Enrollment655 participants
Primary Completion
Lead SponsorAlnylam Pharmaceuticals
Data Retrieved2026-04-11 02:53:26.219343+00:00
What This Trial Means for Biotech Investors
Trial Phase Context

Phase 3 trials are pivotal studies with large patient populations (hundreds to thousands) designed to prove efficacy and safety for FDA submission. A successful Phase 3 readout is typically the last major hurdle before a New Drug Application (NDA) or BLA filing.

Status & Expected Data

Enrollment is complete. The trial is in its follow-up or data collection phase — a readout may occur on or near the primary completion date.

Enrolled: 655 participants
Sponsor Catalyst Profile

Alnylam Pharmaceuticals (ALNY) is the sponsoring company for this trial. BiotechSign currently grades this company F (27/100) based on composite catalyst signals across its full pipeline. This trial is one data point in that overall catalyst picture.

Not financial advice. BiotechSign data is sourced from ClinicalTrials.gov, SEC EDGAR, and other public databases for research and informational purposes only. It does not constitute investment recommendations. Always do your own due diligence before making investment decisions.