A Study in Young People and Adults to Learn About the Medicine Ritlecitinib for Treatment of Patchy Hair Loss, Known by the Medical Term as Moderate Alopecia Areata

The registered record

Accession number

NCT07733765

Lead sponsor

Pfizer (industry)

Registered condition naming hair loss

Alopecia Areata

Official title

A PHASE 3, RANDOMIZED, DOUBLE BLIND, PLACEBO-CONTROLLED STUDY TO INVESTIGATE THE SAFETY AND EFFICACY OF RITLECITINIB IN ADULT AND ADOLESCENT PARTICIPANTS 12 YEARS OF AGE AND OLDER WITH MODERATE ALOPECIA AREATA

Interventions

• DrugRitlecitinib 100 mg
• DrugRitlecitinib 50 mg
• OtherPlacebo

Names and types as registered. The sponsors' free-text descriptions of these interventions are not reproduced: they are written by the party with an interest in the result, and reprinting them inside this site's layout would lend them this site's voice.

Design

Study type

interventional

Phase

Phase 3

Allocation

randomized

Masking

quadruple

Primary purpose

treatment

Enrolment

336 participants (estimated)

Sites

17 locations in Japan, United States

What it measures

1. Difference in the proportion of Severity of Alopecia Tool (SALT) 0 responders at Week 24 between ritlecitinib 50 mg QD versus placebo

   Time frame: Week 24

Primary outcome measures only, as registered. What a trial chose to measure, and when, is the most informative thing about it that is knowable before it reports — a hair-count endpoint at 24 weeks and a patient-satisfaction endpoint at 12 weeks are not the same study.

Who can take part

Sex

all

Age

12 Years

Healthy volunteers

not accepted

A summary of three registered fields, not the eligibility criteria. The full inclusion and exclusion criteria, the recruiting sites and the study contacts are on the registry record, which is the only place they are maintained. This site has no relationship with this trial and cannot refer anyone to it.

Registered dates

Study start

30 July 2026 (actual)

Primary completion

26 April 2028 (estimated)

Study completion

26 April 2028 (estimated)

First posted

29 July 2026 (actual)

Last update posted

24 August 2026 (actual)

"Estimated" and "actual" are the registry's own labels: an estimated date is a plan, and plans move. A date is printed at the precision it was registered at: this record registers a primary completion to the day, so a day is what is shown. Where a sponsor registers only a month, only a month is shown.

Results

This trial has not reported results. ClinicalTrials.gov holds no results record for it. That is the ordinary state of a trial that is running or about to run, and it means there is nothing here to tell you about whether the intervention works — including nothing negative. If this page implied otherwise it would be wrong.

On this site

Guides covering the condition this trial is registered for. They are about published evidence; this page is about a registration, and the two do not overlap.

Alopecia Areata: Types, Treatment, and OutlookJAK Inhibitors for Alopecia Areata: Baricitinib, Ritlecitinib and Deuruxolitinib, Trial by Trial

Where this came from

Read from the ClinicalTrials.gov API on 6 September 2026 and rebuilt into this page without alteration. ClinicalTrials.gov is a service of the U.S. National Library of Medicine and is the authority on this record; where this page and the registry disagree, the registry is right. This page is not affiliated with or endorsed by NLM or NIH, or with the sponsor of this trial.

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