
TRVI
Trevi Therapeutics is a clinical-stage biopharmaceutical company developing Haduvio, an oral extended-release formulation of nalbuphine, to treat chronic cough in patients with idiopathic pulmonary fibrosis (IPF), non-IPF interstitial lung disease, and refractory chronic cough. Haduvio works by acting on opioid receptors in the cough reflex arc as a kappa receptor agonist and mu receptor antagonist, with nalbuphine having a decades-long safety record as an injectable pain medication. The lead program for IPF-related chronic cough recently completed a Phase 2b dose-ranging trial with positive results announced in June 2025.