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JAK3/TEC Inhibitor

Ritlecitinib for Scarring Alopecia

Phase 2
Waitlist Available
Led By Emma Guttman-Yassky, MD, PhD
Research Sponsored by Emma Guttman
Eligibility Criteria Checklist
Specific guidelines that determine who can or cannot participate in a clinical trial
Must have
Subject self-reports a history of at least 6 months of CA (LPP/FFA or CCCA). Diagnosis will be made clinically (according to the LPPAI37, FFASI36 and/or CHLG38)
Be older than 18 years old
Must not have
Subject has a history of CA for ≥ 7 years since their disease onset, severe fibrosing disease, or very rapid hair loss at screening (de novo patients only)
Considered in imminent need for surgery or with elective surgery scheduled to occur during the study
Timeline
Screening 3 weeks
Treatment Varies
Follow Up week 48
Awards & highlights
No Placebo-Only Group

Summary

This trial will administer a new drug to alopecia patients in order to improve hair loss. The goal is to also understand these diseases better.

Who is the study for?
Adults over 18 with scarring alopecia for at least 6 months, in good health, and not pregnant or breastfeeding can join. They must test negative for TB, agree to use effective contraception if applicable, and have no acute infections or planned surgeries. Excluded are those with certain systemic diseases causing hair loss, psychiatric conditions affecting study compliance, a history of severe allergies to drug components or recent use of immunosuppressive medications.
What is being tested?
The trial is testing Ritlecitinib (PF-06651600), a new drug for cicatricial alopecia—a condition where scarred areas on the scalp cannot regrow hair. This open-label trial will involve participants providing skin and blood samples to assess their response to the treatment and understand the disease better.
What are the potential side effects?
While specific side effects for Ritlecitinib in this context aren't detailed here, similar drugs may cause immune system changes leading to increased infection risk, potential liver issues reflected by lab tests changes, possible impact on blood cell counts which could affect overall energy levels or increase bleeding risks.

Eligibility Criteria

Inclusion Criteria

You may be eligible if you check “Yes” for the criteria below
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I have had central centrifugal cicatricial alopecia for at least 6 months.

Exclusion Criteria

You may be eligible for the trial if you check “No” for criteria below:
Select...
I have had alopecia for over 7 years, have severe scarring, or am losing hair very quickly.
Select...
I need surgery soon or have it scheduled during the study period.
Select...
I have a history of large, raised scars on my scalp.
Select...
I have not had major surgery or significant trauma in the last month.
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I have a history of diseases related to lymph nodes or blood cancer.
Select...
I have had blood clots or inherited blood clotting disorders.
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I have had a severe or repeated herpes infection.

Timeline

Screening ~ 3 weeks
Treatment ~ Varies
Follow Up ~week 48
This trial's timeline: 3 weeks for screening, Varies for treatment, and week 48 for reporting.

Treatment Details

Study Objectives

Study objectives can provide a clearer picture of what you can expect from a treatment.
Primary study objectives
RNA, Messenger
Number of Treatment-Emergent Adverse Events
Severity of Treatment-Emergent Adverse Events
Secondary study objectives
RNA, Messenger
RNA, Messenger
Fibrosis
+1 more

Side effects data

From 2023 Phase 2 trial • 244 Patients • NCT03395184
11%
Crohn's disease
6%
Abdominal pain
5%
SARS-CoV-2 test positive
4%
Upper respiratory tract infection
4%
Diarrhoea
4%
Respiratory tract infection
2%
Fatigue
2%
Influenza
2%
Muscle spasms
2%
Pyrexia
1%
Ileus
1%
Arthralgia
1%
Ileus paralytic
1%
Abdominal abscess
1%
Female genital tract fistula
1%
Small intestinal obstruction
1%
Tonsillitis
1%
Lymphopenia
1%
Nausea
1%
Vomiting
1%
Bartholin's abscess
1%
Tinnitus
1%
Urinary tract infection
1%
Acne
1%
Cough
1%
Headache
100%
80%
60%
40%
20%
0%
Study treatment Arm
OLE Period: Placebo QD -> Brepocitinib 30 mg QD
OLE Period: Ritlecitinib 200 mg/50 mg QD -> Ritlecitinib 50 mg QD
Induction Period: Brepocitinib 60 mg QD
OLE Period: Placebo QD -> Ritlecitinib 50 mg QD
OLE Period: Brepocitinib 60 mg QD -> Brepocitinib 30 mg QD
Induction Period: Ritlecitinib 200 mg/50 mg QD
Induction Period: Placebo QD

Awards & Highlights

No Placebo-Only Group
All patients enrolled in this study will receive some form of active treatment.

Trial Design

1Treatment groups
Experimental Treatment
Group I: PF-06651600 (Ritlecitinib)Experimental Treatment1 Intervention
200 mg once-daily for 8 weeks and then 100 mg once daily for the remaining 40 weeks
Treatment
First Studied
Drug Approval Stage
How many patients have taken this drug
PF-06651600
2019
Completed Phase 2
~1900

Find a Location

Who is running the clinical trial?

PfizerIndustry Sponsor
4,669 Previous Clinical Trials
17,861,874 Total Patients Enrolled
Emma GuttmanLead Sponsor
3 Previous Clinical Trials
140 Total Patients Enrolled
Emma Guttman-Yassky, MD, PhDPrincipal InvestigatorIcahn School of Medicine at Mount Sinai
3 Previous Clinical Trials
164 Total Patients Enrolled

Media Library

Ritlecitinib (JAK3/TEC Inhibitor) Clinical Trial Eligibility Overview. Trial Name: NCT05549934 — Phase 2
Scarring Alopecia Research Study Groups: PF-06651600 (Ritlecitinib)
Scarring Alopecia Clinical Trial 2023: Ritlecitinib Highlights & Side Effects. Trial Name: NCT05549934 — Phase 2
Ritlecitinib (JAK3/TEC Inhibitor) 2023 Treatment Timeline for Medical Study. Trial Name: NCT05549934 — Phase 2
Scarring Alopecia Patient Testimony for trial: Trial Name: NCT05549934 — Phase 2
~6 spots leftby Mar 2025