A Study to Evaluate the Durability of Response of CTP-543 in Adult Patients With Moderate to Severe Alopecia Areata
Public ClinicalTrials.gov record NCT04784533. 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 Study to Evaluate Maintenance of Hair Regrowth Following Dose Reduction of CTP-543 in Adult Patients With Moderate to Severe Alopecia Areata
Study identification
- NCT ID
- NCT04784533
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 2
- Lead sponsor
- Concert Pharmaceuticals
- Industry
- Enrollment
- 317 participants
Conditions and interventions
Conditions
Interventions
- CTP-543 Drug
- Placebo Drug
Drug
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
- Feb 25, 2021
- Primary completion
- May 15, 2023
- Completion
- May 15, 2023
- Last update posted
- Oct 8, 2024
2021 – 2023
United States locations
- U.S. sites
- 39
- U.S. states
- 23
- U.S. cities
- 38
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Total Skin and Beauty Dermatology Center, PC | Birmingham | Alabama | 35205 | — |
| Center for Dermatology and Plastic Surgery/CCT Research | Scottsdale | Arizona | 85260 | — |
| 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 | — |
| Quest Dermatology Research | Northridge | California | 91324 | — |
| Kaiser Permanente | Oakland | California | 94611 | — |
| Palmtree Clinical Research, Inc. | Palm Springs | California | 92262 | — |
| Kaiser Permanente | San Francisco | California | 94118 | — |
| Colorado Center for Dermatology and Skin Surgery | Centennial | Colorado | 80111 | — |
| Colorado Medical Research Center, Inc. | 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 | — |
| DeNova Research | Chicago | Illinois | 60611 | — |
| The Indiana Clinical Trials Center, PC | Plainfield | Indiana | 46168 | — |
| DS Research | Louisville | Kentucky | 40241 | — |
| Michigan Center for Research Company, LLC | Clarkston | Michigan | 48346 | — |
| University of Minnesota Department of Dermatology | Minneapolis | Minnesota | 55455 | — |
| Minnesota Clinical Study Center | New Brighton | Minnesota | 55112 | — |
| Skin Specialists, PC | Omaha | Nebraska | 68144 | — |
| Skin Laser and Surgery Specialists of New Jersey | Hackensack | New Jersey | 07601 | — |
| Darst Dermatology | Charlotte | North Carolina | 28277 | — |
| Dermatology Specialists of Charlotte | Charlotte | North Carolina | 28277 | — |
| North Carolina Dermatology Associates, PLLC | Raleigh | North Carolina | 27617 | — |
| Bexley Dermatology Research | Bexley | Ohio | 43209 | — |
| Remington Davis | Columbus | Ohio | 43215 | — |
| Vital Prospects Clinical Research Institute, PC | Tulsa | Oklahoma | 74136 | — |
| Northwest Dermatology | Portland | Oregon | 97210 | — |
| Dermatology Associates of Plymouth Meeting | Plymouth Meeting | Pennsylvania | 19462 | — |
| PEAK Research, LLC | Upper Saint Clair | Pennsylvania | 15241 | — |
| Rhode Island Hospital | Providence | Rhode Island | 02903 | — |
| Clinical Research Center of the Carolinas | Charleston | South Carolina | 29407 | — |
| Dermatology Treatment and Research Center, PA | Dallas | Texas | 75230 | — |
| Austin Institute for Clinical Research | Houston | Texas | 77056 | — |
| Austin Institute for Clinical Research, Inc. | Pflugerville | Texas | 78660 | — |
| Springville Dermatology/CCT Research | Springville | Utah | 84663 | — |
| West End Dermatology Associates | Richmond | Virginia | 23233 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04784533, 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 8, 2024 · Synced Jul 23, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04784533 live on ClinicalTrials.gov.