WINREVAIR (sotatercept-csrk)

Recently diagnosed pulmonary arterial hypertension · Adults with recently diagnosed pulmonary arterial hypertension receiving background therapy

MRK · Merck

Full timeline

4 milestones

FDA decision expected

FDA assigned a September 21, 2026 PDUFA date to the HYPERION-based WINREVAIR label-update application.

Merck — Fourth-quarter 2025 results and regulatory update

FDA accepted the sBLA

FDA accepted the supplemental application seeking to update the U.S. label based on the Phase 3 HYPERION trial.

Merck — Fourth-quarter 2025 results and regulatory update

HYPERION met its primary endpoint

WINREVAIR reduced the risk of clinical-worsening events by 76% versus placebo in adults with recently diagnosed PAH receiving background therapy.

Merck — Positive Phase 3 HYPERION results

Phase 3 HYPERION study started

The event-driven HYPERION trial began evaluating sotatercept in adults diagnosed with pulmonary arterial hypertension within the prior year.

ClinicalTrials.gov — HYPERION study record (NCT04811092)

Related News

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Information for research purposes only · Dates can change · Last updated Sep 12, 2026