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A 52-Week Study to Learn About the Safety and Effects of Ritlecitinib in Participants With Nonsegmental Vitiligo

A PHASE 3 RANDOMIZED WITHDRAWAL AND DOSE-UP TITRATION, MULTI-CENTER EXTENSION STUDY INVESTIGATING THE SAFETY, EFFICACY, AND TOLERABILITY OF RITLECITINIB IN ADULT AND ADOLESCENT PARTICIPANTS WITH NONSEGMENTAL VITILIGO - Tranquillo LTE

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2031230659
Enrollment
400
Registered
2024-02-27
Start date
2024-03-01
Completion date
Unknown
Last updated
2025-11-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Vitiligo

Interventions

Ritlecitinib 50 mg capsule once daily Ritlecitinib 100 mg capsule once daily Matching capsule once daily

Sponsors

Kawai Norisuke
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Participants >=18 years of age at Screening in Study B7981040. Adolescents (12 to <18 years of age at Screening in the parent study) are also eligible for this study if approved by the local IRB/EC and regulatory health authority. Participants who met the eligibility criteria and completed 52 weeks of study intervention for stable or active nonsegmental vitiligo in Study B7981040 The BL visit/first dose in Study B7981041 must be within 30 days after the week 52 visit in Study B7981040

Exclusion criteria

Exclusion criteria: Participant met the parent study (Study 7981040) discontinuation criteria or discontinued the parent study for any safety-related event Any active suicidal ideation/behavior or laboratory abnormality that may increase the risk of study participation

Design outcomes

Primary

MeasureTime frame
To evaluate the long-term safety and tolerability of ritlecitinib in adult and adolescent participants with non-segmental vitiligo - Incidence of treatment-emergent adverse events, serious adverse events, and adverse events leading to discontinuation - Incidence of clinically significant laboratory abnormalities

Secondary

MeasureTime frame
Response based on T-VASI75 at weeks 4, 8, 12, 24, 36 and 52 (Proportion of participants achieving at least a 75% improvement in T-VASI from Baseline) Response based on F-VASI75 at weeks 4, 8, 12, 24, 36 and 52 (Proportion of participants achieving at least a 75% improvement in F-VASI from Baseline) Response based on T-VASI50 at weeks 4, 8, 12, 24, 36 and 52 (Proportion of participants achieving at least a 50% improvement in T-VASI from Baseline) Response based on F-VASI50 at weeks 4, 8, 12, 24, 36 and 52 (Proportion of participants achieving at least a 50% improvement in F-VASI from Baseline) Response based on T-VASI90 at weeks 4, 8, 12, 24, 36 and 52 (Proportion of participants achieving at least a 90% improvement in T-VASI from Baseline) Response based on F-VASI90 at weeks 4, 8, 12, 24, 36 and 52 (Proportion of participants achieving at least a 90% improvement in F-VASI from Baseline) Response based on T-VASI100 at weeks 4, 8, 12, 24, 36 and 52 (Proportion of participants achieving at least a 100% improvement in T-VASI from Baseline) Response based on F-VASI100 at weeks 4, 8, 12, 24, 36 and 52 (Proportion of participants achieving at least a 100% improvement in F-VASI from Baseline) To assess the effect of ritlecitinib compared to placebo on the Patient Global Impression of Severity-Face (PGIS-F) at Weeks 24, 36, and 52 To assess the effect of ritlecitinib compared to placebo on the Patient Global Impression of Severity-Overall Vitiligo (PGIS-V) at Weeks 24, 36, and 52 To assess the effect of ritlecitinib compared to placebo on the Patient Global Impression of Change-Face (PGIC-F) at Weeks 24, 36, and 52 To assess the effect of ritlecitinib compared to placebo on the Patient Global Impression of Change- Overall vitiligo (PGIC-V) at Weeks 24, 36, and 52 The difference in the proportion of participants with stable disease at all scheduled timepoints Percentage change from baseline (%CFB) in F-VASI at weeks 4, 8, 12, 24, 36, and 52 %CFB in T-VASI at weeks 4, 8, 12, 2

Countries

Australia, Bulgaria, Canada, China, Germany, Japan, Korea, Republic of, Mexico, Poland, Spain, Turkey, United Kingdom, United States

Contacts

Public ContactClinical Trials Information Desk

Pfizer R&D Japan G.K.

clinical-trials@pfizer.com+81-3-5309-7000

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Feb 4, 2026