Phase IIb Study to Evaluate the Safety and Effectiveness of GIA632 for Adults with Non-segmental Vitiligo

What this Trial Is About

Researchers are evaluating the safety and effectiveness of GIA632 in adults aged 18 to 99 years with non-segmental vitiligo NSV. This randomized, double-blind, placebo-controlled Phase 2b study aims to understand the dose-response relationship of GIA632 and determine the best dose to advance to a Phase 3 study. Participants have NSV affecting specific body surface areas confirmed by physical examination. Participants are randomly assigned to receive one of four different doses of GIA632 or a placebo. The assigned treatment is administered over a 48-week core period. After this period, an extension phase assesses longer-term safety and efficacy of the study drug. The study compares changes in facial and total body vitiligo scores at various time points up to 48 weeks. Throughout the study, participants undergo assessments including Vitiligo Area Scoring Index VASI measurements on the face and body, and the Vitiligo Noticeability Scale VNS. These assessments occur at baseline and multiple follow-up visits up to week 48. Researchers monitor participants for treatment effects and safety during the entire study duration, which runs until 2030, ensuring detailed evaluation of GIA632 over time.

A Phase IIb Dose-ranging Study to Assess the Efficacy and Safety of GIA632 in Participants With Non-segmental Vitiligo