Extension Study to Evaluate Safety and Efficacy of CTP-543 in Adults With Alopecia Areata
Public ClinicalTrials.gov record NCT03898479. 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 Multicenter, Open-Label, Extension Study to Assess the Long-Term Safety and Efficacy of CTP-543 in Adult Patients With Moderate to Severe Alopecia Areata
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The overall objectives of the study are to evaluate long-term safety of CTP-543 and to assess long-term effects of CTP-543 on treating hair loss in adult patients with chronic, moderate to severe alopecia areata.
Study identification
- NCT ID
- NCT03898479
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Phase 2, Phase 3
- Enrollment
- 1,000 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 18 Years to 65 Years
- 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
- Apr 4, 2019 (Actual)
- Primary completion
- May 2027 (Estimated)
- Completion
- Jun 2027 (Estimated)
- Last update posted
- Oct 22, 2025
2019 – 2027
United States locations
- U.S. sites
- 72
- U.S. states
- 28
- U.S. cities
- 64
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Total Skin and Beauty Dermatology Center | Birmingham | Alabama | 35203 | — |
| Alliance Dermatology & MOHS Center | Phoenix | Arizona | 85032 | — |
| Center for Dermatology and Plastic Surgery/CCT Research | Scottsdale | Arizona | 85260 | — |
| Johnson Dermatology | Fort Smith | Arkansas | 72916 | — |
| Northwest Arkansas Clinical Trials Center, PLLC | Rogers | Arkansas | 72758 | — |
| Kern Research Inc. | Bakersfield | California | 93301 | — |
| Hope Clinical Research | Canoga Park | California | 91303 | — |
| California Dermatology & Clinical Research Institute | Encinitas | California | 92024 | — |
| University of California, Irvine | Irvine | California | 92697 | — |
| Dermatology Research Associates | Los Angeles | California | 90045 | — |
| Quest Dermatology Research | Northridge | California | 91324 | — |
| Kaiser Permanente Northern California - Oakland | Oakland | California | 94611 | — |
| Palmtree Clinical Research, Inc. | Palm Springs | California | 92262 | — |
| Stanford University School of Medicine - Medical Dermatology Clinic | Redwood City | California | 94063 | — |
| Kaiser Permanente South Sacramento | Sacramento | California | 95823 | — |
| Kaiser Permanente Clinical Trials Unit | San Francisco | California | 94118 | — |
| Colorado Center for Dermatology, PLLC d/b/a CODerm Research | Centennial | Colorado | 80111 | — |
| Colorado Medical Research Center | Denver | Colorado | 80210 | — |
| Yale University Church Street Research Unit | New Haven | Connecticut | 06519 | — |
| Skin Care Research, LLC | Boca Raton | Florida | 33486 | — |
| Skin Care Research, LLC | Hollywood | Florida | 33021 | — |
| University of Miami Hospital | Miami | Florida | 33125 | — |
| Floridian Research Institute, LLC | Miami | Florida | 33179 | — |
| Lenus Research & Medical Group, LLC | Sweetwater | Florida | 33172 | — |
| Clinical Research Trials of Florida, Inc. | Tampa | Florida | 33607 | — |
| ForCare Clinical Research | Tampa | Florida | 33613 | — |
| ASR, LLC | Boise | Idaho | 83702 | — |
| Denova Research | Chicago | Illinois | 60611 | — |
| Dawes Fretzin Clinical Research Group, LLC | Indianapolis | Indiana | 46250 | — |
| DS Research | New Albany | Indiana | 47150 | — |
| The Indiana Clinical Trials Center, PC | Plainfield | Indiana | 46168 | — |
| DS Research | Louisville | Kentucky | 40241 | — |
| Qualmedica Research | Owensboro | Kentucky | 42301 | — |
| Massachusetts General Hospital | Boston | Massachusetts | 02114 | — |
| Brigham and Women's Hospital | Boston | Massachusetts | 02115 | — |
| Clarkston Skin Research | Clarkston | Michigan | 48346 | — |
| Clinical Research Institute of Michigan | Clinton Township | Michigan | 48038 | — |
| Minnesota Clinical Study Center | Fridley | Minnesota | 55432 | — |
| University of Minnesota Department of Dermatology | Minneapolis | Minnesota | 55417 | — |
| Vivida Dermatology | Las Vegas | Nevada | 89119 | — |
| Skin Laser and Surgery Specialists of NJ | Hackensack | New Jersey | 07601 | — |
| Schweiger Dermatology, P.C. | Verona | New Jersey | 07044 | — |
| Icahn School of Medicine at Mount Sinai | New York | New York | 10029 | — |
| Sadick Research Group | New York | New York | 10075 | — |
| UR Dermatology at College Town | Rochester | New York | 14620 | — |
| Dermatology Specialists of Charlotte | Charlotte | North Carolina | 28211 | — |
| Darst Dermatology | Charlotte | North Carolina | 28277 | — |
| North Carolina Dermatology Associates, PLLC | Raleigh | North Carolina | 27617 | — |
| Wake Forest University Health Sciences, Department of Dermatology | Winston-Salem | North Carolina | 27104 | — |
| Bexley Dermatology Research | Bexley | Ohio | 43209 | — |
| Remington-Davis, Inc. | Columbus | Ohio | 43215 | — |
| Vital Prospects Clinical Research Institute, P.C. | Tulsa | Oklahoma | 74136 | — |
| Oregon Medical Research Center | Portland | Oregon | 97201 | — |
| NW Dermatology Institute | Portland | Oregon | 97210 | — |
| Hospital of the University of Pennsylvania Dept of Dermatology | Philadelphia | Pennsylvania | 19104 | — |
| Dermatology Associates of Plymouth Meeting | Plymouth Meeting | Pennsylvania | 19462 | — |
| Peak Research - Pennsylvania | Upper Saint Clair | Pennsylvania | 15241 | — |
| Velocity Clinical Research-Providence | East Greenwich | Rhode Island | 02818 | — |
| Rhode Island Hospital | Providence | Rhode Island | 02903 | — |
| Clinical Research Center of the Carolinas | Charleston | South Carolina | 29407 | — |
| Palmetto Clinical Trial Services | Fountain Inn | South Carolina | 29644 | — |
| Dermatology Treatment and Research Center - Dallas | Dallas | Texas | 75230 | — |
| North Texas Center for Clinical Research | Frisco | Texas | 75034 | — |
| Suzanne Bruce and Associates, PA | Houston | Texas | 77056 | — |
| Austin Institute for Clinical Research, Inc. | Pflugerville | Texas | 78660 | — |
| Progressive Clinical Research | San Antonio | Texas | 78213 | — |
| Texas Dermatology and Laser Specialists | San Antonio | Texas | 78218 | — |
| Dermatology Clinical Research Center of San Antonio | San Antonio | Texas | 78229 | — |
| Jordan Valley Dermatology | West Jordan | Utah | 84088 | — |
| University of Virginia Health System | Charlottesville | Virginia | 22903 | — |
| West End Dermatology Associates | Richmond | Virginia | 23233 | — |
| Clinical Investigation Specialists, Inc. | Kenosha | Wisconsin | 53144 | — |
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 19 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03898479, 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 Oct 22, 2025 · Synced Oct 17, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT03898479 live on ClinicalTrials.gov.