ClinicalTrials.gov record
Long-Term PF-06651600 for the Treatment of Alopecia Areata
ClinicalTrials.gov ID: NCT04006457
Public ClinicalTrials.gov record NCT04006457. 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.
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 3 OPEN-LABEL, MULTI-CENTER, LONG-TERM STUDY INVESTIGATING THE SAFETY AND EFFICACY OF PF-06651600 IN ADULT AND ADOLESCENT PARTICIPANTS WITH ALOPECIA AREATA
Study identification
- NCT ID
- NCT04006457
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- Pfizer
- Industry
- Enrollment
- 1,057 participants
Conditions and interventions
Conditions
Interventions
- Meningococcal (groups A, C, W-135 and Y [ACWY]) oligosaccharide diphtheria CRM197 conjugate vaccine Biological
- PF-06651600 Drug
- Tetanus and diphtheria toxoids and acellular pertussis (Tdap) vaccine Biological
Biological · 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
- Jul 17, 2019
- Primary completion
- Jun 24, 2024
- Completion
- Feb 25, 2026
- Last update posted
- Apr 8, 2026
2019 – 2026
United States locations
- U.S. sites
- 47
- U.S. states
- 22
- U.S. cities
- 31
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| The University of Alabama at Birmingham Hosptial Outreach Lab | Birmingham | Alabama | 35233 | — |
| The University of Alabama at Birmingham | Birmingham | Alabama | 35233 | — |
| The University of Alabama at Birmingham, Department of Dermatology | Birmingham | Alabama | 35294 | — |
| Mosaic Dermatology | Beverly Hills | California | 90211 | — |
| Univ of California, Irvine, 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 Pavilion | Aurora | Colorado | 80045 | — |
| Yale School of Medicine, Yale Center for Clinical Investigations | New Haven | Connecticut | 06519 | — |
| Medstar Georgetown University Hospital - Department of Otolaryngology | Washington D.C. | District of Columbia | 20007 | — |
| Medstar Georgetown University Hospital-Dept of Otolaryngology | Washington D.C. | District of Columbia | 20007 | — |
| MedStar Washington Hospital Center | Washington D.C. | District of Columbia | 20010 | — |
| Medstar Georgetown University Hospital - 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 | — |
| Velocity Clinical Research - Boise | 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 Drug Service Pharmacy | Chicago | Illinois | 60611 | — |
| Summit Dermatology and Aesthetic Surgery (in c/o TrialSpark, Inc) | Oakbrook Terrace | Illinois | 60181 | — |
| NorthShore University HealthSystem Dermatology Clinical Trials Unit | 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 | Iowa City | Iowa | 52242 | — |
| Medstar Georgetown University Hospital - Department of Dermatology | Chevy Chase | Maryland | 20815 | — |
| Massachusetts General Hospital - Clinical Unit for Research Trials in Skin (CURTIS) | Boston | Massachusetts | 02114 | — |
| University of Minnesota Clinical Research Unit (CRU) | Minneapolis | Minnesota | 55455 | — |
| University of Minnesota Lillehei Clinical Research Unit (LCRU) | Minneapolis | Minnesota | 55455 | — |
| University of Minnesota Medical Center, Investigational Drug Services Attn: Darlette Luke | Minneapolis | Minnesota | 55455 | — |
| Skin Specialists, PC (Schlessinger MD) | Omaha | Nebraska | 68144 | — |
| Schweiger Dermatology, P.C. | Verona | New Jersey | 07044 | — |
| NYU School of Medicine, The Ronald O. Perelman Department of Dermatology | New York | New York | 10016 | — |
| Pura Dermatology (in c/o TrialSpark, Inc) | New York | New York | 10018 | — |
| Icahn School of Medicine at Mount Sinai | New York | New York | 10029 | — |
| UNC CTRC | Chapel Hill | North Carolina | 27514 | — |
| UNC Dermatology and Skin Cancer Center | Chapel Hill | North Carolina | 27516 | — |
| Cleveland Clinic Foundation | Cleveland | Ohio | 44195 | — |
| Vital Prospects Clinical Research Institute, P.C. | Tulsa | Oklahoma | 74136 | — |
| Oregon Medical Research Center | Portland | Oregon | 97201 | — |
| The University of Texas Health Science Center at Houston | Bellaire | Texas | 77401 | — |
| Tamjidi Skin Institute (in c/o TrialSpark, Inc) | Vienna | Virginia | 22182 | — |
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 97 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04006457, 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 Apr 8, 2026 · Synced May 19, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04006457 live on ClinicalTrials.gov.