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Merck's drug WINREVAIR met its goal in a trial for a rare lung condition linked to heart failure, showing promise for a major unmet need.
Merck announced that its Phase 2 CADENCE trial of WINREVAIR (sotatercept-csrk) met its primary endpoint, showing a significant reduction in pulmonary vascular resistance in adults with combined post- and precapillary pulmonary hypertension due to heart failure with preserved ejection fraction (HFpEF).
The drug demonstrated a favorable safety profile consistent with prior data, and Merck plans to advance it into Phase 3 trials.
The results, released on November 18, 2025, mark progress in treating a rare, complex form of pulmonary hypertension with limited options.
Merck’s stock rose over 3% on the news, reflecting optimism about the drug’s potential in HFpEF, a condition affecting over 6.7 million Americans.
WINREVAIR is already approved for pulmonary arterial hypertension and generated $976 million in sales through September 2025.
El medicamento WINREVAIR de Merck cumplió su objetivo en un ensayo para una rara afección pulmonar relacionada con la insuficiencia cardíaca, mostrando promesa para una gran necesidad no satisfecha.