Alnylam's Vutrisiran Shows Promising Results in ATTR-CM; Robust Real-World Adherence Reported

March 30, 2026
Alnylam's Vutrisiran Shows Promising Results in ATTR-CM; Robust Real-World Adherence Reported
  • Readers are directed to Capella for ACC.26 presentations and investor relations contact information for further details.

  • Zilebesiran is in Phase 3 (ZENITH) cardiovascular outcomes trial, co-developed with Roche, targeting continuous BP control with biannual dosing.

  • Alnylam announced partnerships with Viz.ai and the American Heart Association to improve early ATTR-CM detection and care coordination via the AWARE study, integrating AI-enabled screening into clinical workflows.

  • Safety and prescribing information remind that AMVUTTRA (vutrisiran) requires Vitamin A supplementation considerations due to reductions in Vitamin A.

  • Analyses across baseline diastolic dysfunction grades show higher baseline DDG links to worse outcomes, but vutrisiran associates with lower risk of DDG worsening and favorable NYHA outcomes.

  • Alnylam presented new data at ACC.26 showing vutrisiran improves health-related quality of life and sustains benefits across ATTR-CM disease stages, including advanced cases and diastolic dysfunction, with real-world data indicating high adherence to quarterly HCP-administered dosing.

  • A real-world retrospective study reported 93.8% adherence to vutrisiran over roughly 614 days, suggesting strong real-world persistence with the therapy.

  • At ACC.26, Alnylam highlighted both clinical and real-world findings for its cardiovascular portfolio, including vutrisiran for ATTR-CM and zilebesiran for hypertension, as part of its broader growth narrative.

  • Financial health indicators show robust growth and margins, though insider selling in the last quarter is noted as a risk factor to monitor.

  • Safety signals such as hypotension, hyperkalemia, and eGFR decline were generally low and transient across monotherapy and combination therapy cohorts.

  • Alnylam is a leading RNAi therapeutics company with approved products and partnerships, a market cap near $42 billion, focusing on cardio-metabolic, neuroscience, and hematology programs.

  • Analysts tracked by InvestingPro show the stock trading slightly above fair value, with several firms maintaining Buy ratings or Equalweight, signaling ongoing institutional interest.

Summary based on 6 sources


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