Under construction – not a live service
Sign in
Taking people in United StatesPhase 3

Tests nucresiran against vutrisiran in hereditary transthyretin amyloidosis with polyneuropathy

Tests nucresiran, compared with vutrisiran, in adults with hereditary transthyretin amyloidosis nerve damage.

Plain-language title generated from the registry record
Registry title: TRITON-PN: A Study to Evaluate the Efficacy and Safety of Nucresiran in Patients With Hereditary Transthyretin Amyloidosis With Polyneuropathy

Key facts

Where
Aurora, Baltimore, Boston, Chapel Hill, Chicago, Dallas, Houston, Nashville, New York, and Rochester, United StatesSee the 10 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 United States

  • AuroraAurora, United StatesTaking people
  • BaltimoreBaltimore, United StatesTaking people
  • BostonBoston, United StatesTaking people
  • Chapel HillChapel Hill, United StatesTaking people
  • ChicagoChicago, United StatesTaking people
  • DallasDallas, United StatesTaking people
  • HoustonHouston, United StatesTaking people
  • NashvilleNashville, United StatesTaking people
  • New YorkNew York, United StatesTaking people
  • RochesterRochester, United StatesTaking people

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