Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 17, 2026, 10:41 PM EDT

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Showing 1–6 of 6 matching trials from the live ClinicalTrials.gov search.
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Conditions
Alopecia Areata
Interventions
CTP-543, Placebo
Drug
Lead sponsor
Concert Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
317 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
39
States / cities
Birmingham, Alabama • Scottsdale, Arizona • Bakersfield, California + 35 more
Conditions
Alopecia Areata
Interventions
CTP-543, CTP-543 matching placebo
Drug
Lead sponsor
Concert Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
149 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
13
States / cities
Irvine, California • Rancho Mirage, California • Redwood City, California + 10 more
Conditions
Alopecia Areata
Interventions
CTP-543 matching placebo, CTP-543
Drug
Lead sponsor
Concert Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
706 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
47
States / cities
Birmingham, Alabama • Bakersfield, California • Encinitas, California + 40 more
Conditions
Alopecia Areata
Interventions
CTP-543, CTP-543 Matching Placebo
Drug
Lead sponsor
Concert Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
10
States / cities
Irvine, California • San Francisco, California • New Haven, Connecticut + 6 more
Conditions
Alopecia Areata
Interventions
CTP-543, CTP-543 Matching Placebo
Drug
Lead sponsor
Concert Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
5
States / cities
Centennial, Colorado • Tampa, Florida • Plainfield, Indiana + 2 more
Conditions
Alopecia Areata
Interventions
CTP-543 matching placebo, CTP-543
Drug
Lead sponsor
Concert Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years
Enrollment
517 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
25
States / cities
Phoenix, Arizona • Fort Smith, Arkansas • Los Angeles, California + 19 more