Galapagos and Gilead Discontinue Phase 3 ISABELA Program of Ziritaxestat in IPF

Galapagos and Gilead Discontinue Phase 3 ISABELA Program of Ziritaxestat in IPF

Galapagos and Gilead have halted the phase 3 ISABELA program, consisting of two studies evaluating ziritaxestat in patients with idiopathic pulmonary fibrosis (IPF). The decision is based on the recommendations of the Independent Data Monitoring Committee (IDMC) which, following a regular review of unblinded data, concluded that ziritaxestat’s benefit-risk profile no longer supported continuing these studies. Detailed data of the ISABELA studies will be presented at future medical meetings.

Investigators are being informed of the decision and they will be contacting their study participants to discontinue the investigational treatment.

The program includes ISABELA 1 and ISABELA 2, identically designed trials aiming to enroll 1,500 IPF patients combined. Patients continued on their standard of care background treatment and were randomized on to either 200mg or 600mg ziritaxestat once daily or placebo. The primary endpoint was the rate of decline of forced vital capacity until week 52.

“We are very disappointed not to be able to bring a novel medication to patients suffering from such a devastating disease with high unmet need. We would like to thank the patients and the me...

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