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Trial · NCT05583526

Registered outcomes38

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryUS only Co-Primary Endpoints: Response based on Facial Vitiligo Area Scoring Index 75 (F-VASI75) at Week 52 and T-VASI50 at Week 52Week 52Proportion of participants achieving F-VASI75 (defined as at least 75% improvement in F-VASI from Baseline) and T-VASI50 (defined as at least 50% improvement in T-VASI from Baseline)
PrimaryGlobal (Other than US): Response based on Facial Vitiligo Area Scoring Index 75 (F-VASI75) at Week 52Week 52Proportion of participants achieving F-VASI75 (defined as at least 75% improvement in F-VASI from Baseline)
PrimaryIncidence of Treatment Emergent Adverse Events (TEAEs), Serious Adverse Events (SAEs), Adverse Events (AEs), leading to discontinuation, and clinically significant laboratory abnormalitiesBaseline through Week 52Safety and tolerability of ritlecitinib in participants with nonsegmental vitiligo
SecondaryUS-Only: Response based on F-VASI75 at 24 and 36 weeksWeeks 24 and 36Proportion of participants achieving at least a 75% improvement in F-VASI from Baseline
SecondaryUS-Only: Response based on T-VASI50 at 24 and 36 weeksWeeks 24 and 36Proportion of participants achieving T-VASI50 (defined as at least 50% improvement in T-VASI from Baseline)
SecondaryUS-Only: Response based on T-VASI75 at 52 weeksWeek 52Proportion of participants achieving T-VASI75 (defined as at least 75% improvement in T-VASI from Baseline)
SecondaryUS-Only: Percentage change from baseline (% CFB) in F-VASI at 24, 36, and 52 weeksWeeks 24, 36, and 52Median % CFB in F-VASI in participants treated with ritlecitinib 50 mg QD versus placebo
SecondaryUS-Only: Percentage change from baseline (% CFB) in T-VASI at 24, 36, and 52 weeksWeeks 24, 36, and 52Median % CFB in T-VASI in participants treated with ritlecitinib 50 mg QD versus placebo
SecondaryUS-Only: Patient Global Impression of Severity-Face (PGIS-F)Week 52Proportion of responders based on PGIS-F at 52 weeks
SecondaryUS-Only: Patient Global Impression of Severity-Overall Vitiligo (PGIS-V)Week 52Proportion of responders based on PGIS-V at 52 weeks
SecondaryGlobal (Other than US): Response based on F-VASI75 at 24 and 36 weeksWeeks 24 and 36Proportion of participants achieving F-VASI75 (defined as at least 75% improvement in F-VASI from Baseline)
SecondaryGlobal (Other Than US): Response based on T-VASI50 at 24, 36, and 52 weeksWeeks 24, 36, and 52Proportion of participants achieving T-VASI50 (defined as at least 50% improvement in T-VASI from Baseline)
SecondaryGlobal (Other than US): Percentage change from baseline (% CFB) in F-VASI at 24, 36, and 52 weeksWeeks 24, 36, and 52Median % CFB in F-VASI in participants treated with ritlecitinib 50 mg QD versus placebo
SecondaryGlobal (Other than US): Percentage change from baseline (% CFB) in T-VASI at 24, 36, and 52 weeksWeeks 24, 36, and 52Median % CFB in T-VASI in participants treated with ritlecitinib 50 mg QD versus placebo
SecondaryGlobal (Other than US): Patient Global Impression of Severity-Face (PGIS-F)Weeks 24, 36, and 52Proportion of responders based on PGIS-F at 24, 36, and 52 weeks
SecondaryGlobal (Other than US): Patient Global Impression of Severity-Overall Vitiligo (PGIS-V)Weeks 24, 36, and 52Proportion of responders based on PGIS-V at 24, 36, and 52 weeks
SecondaryAll Countries: Proportion of participants achieving disease stabilizationBaseline through week 52The difference in the proportion of participants with stable disease at all timepoints in participants with non segmental vitiligo treated with ritlecitinib 50 mg QD compared to placebo
SecondaryResponse based on T-VASI50Baseline through week 4, week 8, week 12, week 48Proportion of participants achieving T-VASI50 (defined as at least 50% improvement in T-VASI from Baseline)
SecondaryResponse based on F-VASI75Baseline through week 4, week 8, week 12, week 48Proportion of participants achieving F-VASI75 (defined as at least 75% improvement in F-VASI from Baseline)
SecondaryResponse based on T-VASI75Baseline through week 4, week 8, week 12, week 24, week 36, week 48Proportion of participants achieving T-VASI75 (defined as at least 75% improvement in T-VASI from Baseline)

Source ClinicalTrials.govtrials-2026-11-12-0.5.0

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

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