Gossamer Partners With Chiesi To Accelerate Seralutinib Development

Cash Will Fund Trial In Second, Larger Indication

Already in Phase III for PAH, Gossamer said it can take seralutinib into Phase III for PH-ILD at least four years earlier than planned under its alliance with respiratory disease expert Chiesi.

Pulmonary hypertension is a cardiovascular condition characterized by high blood pressure in the pulmonary arteries 3D rendering
Topline Phase III data in PAH are expected in Q4 2025 • Source: Shutterstock

Gossamer Bio, Inc. is testing its inhaled kinase inhibitor seralutinib in a Phase III clinical trial as a potential disease-modifying treatment for pulmonary arterial hypertension (PAH), but has its eyes on the larger, less crowded market of pulmonary hypertension associated with interstitial lung disease (PH-ILD). Now, after signing a deal with Chiesi Farmaceutici S.p.A., Gossamer has the resources to begin a Phase III trial in PH-ILD at least four years sooner than planned.

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