🏛️ Verified NIH Record • Updated 2026-08-12

TRITON-PN: A Study to Evaluate the Efficacy and Safety of Nucresiran in Patients With Hereditary Transthyretin Amyloidosis With Polyneuropathy (NCT07223203)

TRITON-PN: A Phase 3, Global, Randomized, Open-Label Study to Evaluate the Efficacy and Safety of Nucresiran in Patients With Hereditary Transthyretin-Mediated Amyloidosis With Polyneuropathy (hATTR-PN)

🟢 Recruiting Phase3 💊 Investigational Drug / Biologic Sponsor: Alnylam Pharmaceuticals

🩺 Plain-English Summary (8th-Grade Level)

The purpose of this study is to: * Determine the efficacy of nucresiran in patients with hATTR-PN by evaluating the effect on neurologic impairment, quality of life, nutritional status, disability, and gait speed * Demonstrate superiority of nucresiran compared to in-study vutrisiran with respect to serum transthyretin (TTR) levels

Who can join: Review the eligibility criteria below.

Location: Clinical Trial Site — Aurora, Colorado

Age range: 18 Years to 85 Years

🧪 Interventions in This Study

📋 "Do I Qualify?" — 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria ↗

📍 All Participating Trial Locations (48 Sites)

Showing the first 25 of 48 sites.

  • Clinical Trial Site — Aurora, Colorado
  • Clinical Trial Site — Chicago, Illinois
  • Clinical Trial Site — Baltimore, Maryland
  • Clinical Trial Site — Boston, Massachusetts
  • Clinical Trial Site — Rochester, Minnesota
  • Clinical Trial Site — New York, New York
  • Clinical Trial Site — Chapel Hill, North Carolina
  • Clinical Trial Site — Nashville, Tennessee
  • Clinical Trial Site — Dallas, Texas
  • Clinical Trial Site — Houston, Texas
  • Clinical Trial Site — Darlinghurst,
  • Clinical Trial Site — Woolloongabba,
  • Clinical Trial Site — Ribeirão Preto,
  • Clinical Trial Site — São Paulo,
  • Clinical Trial Site — Vancouver,
  • Clinical Trial Site — Égkomi,
  • Clinical Trial Site — Créteil,
  • Clinical Trial Site — Le Kremlin-Bicêtre,
  • Clinical Trial Site — Marseille,
  • Clinical Trial Site — Berlin,
  • Clinical Trial Site — Heidelberg,
  • Clinical Trial Site — Münster,
  • Clinical Trial Site — Athens,
  • Clinical Trial Site — Heraklion,
  • Clinical Trial Site — Florence,

💰 Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

💡 How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Review the official NIH record below to find the coordinating site.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
🏛️ View Official NIH Record ↗