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Completed Phase 2Phase 3 Interventional Results available

PF-06651600 for the Treatment of Alopecia Areata

ClinicalTrials.gov ID: NCT03732807

Public ClinicalTrials.gov record NCT03732807. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Jul 22, 2026, 1:34 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A PHASE 2B/3 RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED, DOSE-RANGING STUDY TO INVESTIGATE THE EFFICACY AND SAFETY OF PF-06651600 IN ADULT AND ADOLESCENT ALOPECIA AREATA (AA) SUBJECTS WITH 50% OR GREATER SCALP HAIR LOSS

Study identification

NCT ID
NCT03732807
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2, Phase 3
Lead sponsor
Pfizer
Industry
Enrollment
718 participants

Conditions and interventions

Interventions

  • PF-06651600 Induction Dose Drug
  • PF-06651600 Maintenance Dose #1 Drug
  • PF-06651600 Maintenance Dose #2 Drug
  • PF-06651600 Maintenance Dose #3 Drug
  • Placebo Drug

Drug

Eligibility (public fields only)

Age range
12 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Dec 2, 2018
Primary completion
Dec 30, 2020
Completion
Jun 23, 2021
Last update posted
Feb 23, 2022

2018 – 2021

United States locations

U.S. sites
46
U.S. states
20
U.S. cities
28
Facility City State ZIP Site status
The University of Alabama at Birmingham Hospital Outreach Lab Birmingham Alabama 35233
The University of Alabama at Birmingham, Department of Dermatology Birmingham Alabama 35233
The University of Alabama at Birmingham, Department of Dermatology Birmingham Alabama 35294
Mosaic Dermatology Beverly Hills California 90211
University of California, Irvine, Department of Dermatology, Dermatology Clinical Research Center Irvine California 92697
Dermatology Specialists, Inc. Murrieta California 92562
University of California, San Francisco San Francisco California 94115
Kaiser Permanente Clinical Trials Unit San Francisco California 94118
Southern California Dermatology, Inc. Santa Ana California 92701
University of Colorado Anschutz Medical Campus Aurora Colorado 80045
University of Colorado Hospital Clinical and Translational Research Center Aurora Colorado 80045
University of Colorado Hospital Outpatient Pavillion Aurora Colorado 80045
Yale School of Medicine New Haven Connecticut 06510
Church Street Research Unit New Haven Connecticut 06519
Medstar Georgetown University Hospital Center-Department of Otolaryngology Washington D.C. District of Columbia 20007
Medstar Washington Hospital Center-Claude Nogay Research Pharmacy Washington D.C. District of Columbia 20010
Medstar Washington Hospital Center Washington D.C. District of Columbia 20010
Medstar Georgetown University Hospital Center-Department of Pediatrics Washington D.C. District of Columbia 20016
Siperstein Dermatology Group Boynton Beach Florida 33472
Park Avenue Dermatology Orange Park Florida 32073
ForCare Clinical Research Tampa Florida 33613
Advanced Clinical Research Meridian Idaho 83642
Northwestern Medical Group Chicago Illinois 60611
Northwestern Medicine Diagnostic Testing Center Chicago Illinois 60611
Northwestern Medicine Chicago Illinois 60611
Northwestern Memorial Hospital, Investigational Research Pharmacy Chicago Illinois 60611
Northwestern University Chicago Illinois 60611
NorthShore University HealthSystem Skokie Illinois 60077
Southern Illinois University School of Medicine Springfield Illinois 62702
Dawes Fretzin Clinical Research Group, LLC Indianapolis Indiana 46250
University of Iowa Hospitals and Clinics; Department of Pharmacy-IDS; Iowa City Iowa 52242
University of Iowa Hospitals and Clinics Iowa City Iowa 52242
Medstar Georgetown University Hospital - Department of Dermatology Chevy Chase Maryland 20815
Massachusetts General Hospital Boston Massachusetts 02114
University of Minnesota Department of Dermatology Minneapolis Minnesota 55455
University of Minnesota Medical Center, Investigational Drug Services Attn: Darlette Luke Minneapolis Minnesota 55455
Skin Specialists, PC Omaha Nebraska 68144
The Dermatology Group, P.C. Verona New Jersey 07044
NYU School of Medicine, The Ronald O. Perelman Department of Dermatology New York New York 10016
Icahn School of Medicine at Mount Sinai New York New York 10029
UNC CTRC Chapel Hill North Carolina 27514
UNC Hospitals, Investigational Drug Service Chapel Hill North Carolina 27514
UNC Dermatology Clinical Trials Unit Chapel Hill North Carolina 27516
Cleveland Clinic Foundation Cleveland Ohio 44195
Vital Prospects Clinical Research Institute, P.C Tulsa Oklahoma 74136
The University of Texas Health Science Center at Houston Houston Texas 77030

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 109 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03732807, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Feb 23, 2022 · Synced Jul 22, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03732807 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →