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Taking peoplePhase 3

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

Key facts

Where
Florence, Messina, Milan, Padova, Pavia, and Rome, ItalySee the 6 sites
Phase
Phase 3

Could this be for you?

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 18 and 85 years old?

Source: NCT07223203, who can take part

Where in Italy

  • Azienda Ospedaliero-Universitaria CareggiFlorence, ItalyNo longer taking part
  • Azienda Ospedaliera Universitaria Gaetano Martino MessinaMessina, ItalyNo longer taking part
  • IRCCS Foundation Istituto Neurologico Carlo BestaMilan, ItalyNo longer taking part
  • Azienda Ospedaliera di PadovaPadova, ItalyNo longer taking part
  • Fondazione IRCCS Policlinico San MatteoPavia, ItalyNo longer taking part
  • Fondazione Policlinico Universitario Agostino Gemelli IRCCSRome, ItalyNo longer taking part

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
Print a page for my doctor

Trial details

Who runs it
Alnylam Pharmaceuticals
Trial code
NCT07223203EU 2025-522544-40-00
Record updated
8 October 2026
Original description
The purpose of this study is to:Read full original descriptionShow less

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)

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

Inclusion: Has documented diagnosis of hATTR-PN; Has a diagnosis of hATTR amyloidosis with polyneuropathy with a documented TTR gene variant; Has a neuropathy impairment score (NIS) of 5 to 130 (inclusive); Has a Karnofsky Performance Status (KPS) of ≥60%.

Exclusion: Has had a liver transplant or is likely, in the opinion of the Investigator, to undergo liver transplantation during the Treatment Period of the study; Has a New York Heart Association (NYHA) heart failure classification >2; Has alanine aminotransferase (ALT) or aspartate aminotransferase (AST) >2.5 upper limit of normal (ULN); Has total bilirubin >1.5 ULN; Has estimated glomerular filtration rate (eGFR) ≤30 mL/min/1.73m\^2; Has known other (non-hATTR) forms of amyloidosis or clinical evidence of leptomeningeal amyloidosis; Has other known causes of sensorimotor or autonomic neuropathy.

ClinicalTrials.gov NCT07223203 · EU CTIS 2025-522544-40-00