NCT06018428Active, not recruitingPhase 2
A Phase 2a Proof-of-Concept Trial of Bempikibart (ADX-914) for the Treatment of Severe Alopecia Areata (SIGNAL-AA)
A Phase 2a, Randomized, Double-blind, Placebo-Controlled, Proof-of-Concept Trial With Part B and Open-label Extension of Bempikibart (ADX-914) for the Treatment of Severe Alopecia Areata (SIGNAL-AA)
Source: ClinicalTrials.gov · Last updated 8 May 2026
Brief summary (registry, in English)
Part A is a randomized, double-blind, placebo-controlled, multi-center Proof-of-Concept (POC) Trial in subjects with severe Alopecia Areata. All participants in Part A have completed participation. Part B is a multicenter, open-label study to assess the efficacy, safety, and tolerability of bempikibart (ADX-914) in participants with severe Alopecia Areata.
- Status (registry)
- Active, not recruiting
- Phase (registry)
- Phase 2
- Study type
- Interventional
- Enrollment
- 75 (estimated)
- First submitted
- 15 Aug 2023
- Start date
- 12 Sept 2023
- Primary completion date
- Jun 2026
- Lead sponsor
- Q32 Bio Inc.
- NCT number
- NCT06018428
What you commit to
- Study type: Interventional · Phase 2
- Planned participants: 75
- From 12 Sept 2023 to the primary completion date, Jun 2026
- 32 sites in 2 countries
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Prior treatment
- Use of systemic, topical, or device-based therapy for AA.
Other illness
- History of or diagnosis at screening of any another form of alopecia based on assessment by investigator.
- History of, recent, or current clinically serious viral, bacterial, fungal, or parasitic infection or mycobacterial infection or at risk of serious infection.
Other
- History (lifetime) or presence of hair transplants.
- History (lifetime) or presence of micropigmentation of the scalp (Note: Microblading of the eyebrows is permitted).
Who the study is looking for
- Adult men and women, aged 18 to 75 years, inclusive, at the time of informed consent.
- Clinical diagnosis of severe to very severe alopecia areata, defined as the presence of ≥50% total scalp hair loss at screening and baseline as measured by the SALT score.
Age in the registry: 18 years to 75 years · Sex: All · Does not accept healthy volunteers
Sites (32)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| Clinical Trials Coordinator of this site? Confirm its status | Calgary | Canada | Unknown status |
| Clinical Trials Coordinator of this site? Confirm its status | Oakville | Canada | Unknown status |
| Clinical Trials Coordinator of this site? Confirm its status | Peterborough | Canada | Unknown status |
| Clinical Trials Coordinator of this site? Confirm its status | Waterloo | Canada | Unknown status |
| Clinical Trials Coordinator of this site? Confirm its status | Winnipeg | Canada | Unknown status |
| Austin, Texas Coordinator of this site? Confirm its status | Austin | United States | Unknown status |
| Bexley, Ohio Coordinator of this site? Confirm its status | Bexley | United States | Unknown status |
| Bowling Green, Kentucky Coordinator of this site? Confirm its status | Bowling Green | United States | Unknown status |
| Burlington, Massachusetts Coordinator of this site? Confirm its status | Burlington | United States | Unknown status |
| Clinical Trials Coordinator of this site? Confirm its status | Canton | United States | Unknown status |
| Clarksville, Indiana Coordinator of this site? Confirm its status | Clarksville | United States | Unknown status |
| Encinitas, California Coordinator of this site? Confirm its status | Encinitas | United States | Unknown status |
| Fayetteville, Arkansas Coordinator of this site? Confirm its status | Fayetteville | United States | Unknown status |
| Fountain Valley, California Coordinator of this site? Confirm its status | Fountain Valley | United States | Unknown status |
| Frisco, Texas Coordinator of this site? Confirm its status | Frisco | United States | Unknown status |
| Hot Springs, Arkansas Coordinator of this site? Confirm its status | Hot Springs | United States | Unknown status |
| Houston, Texas Coordinator of this site? Confirm its status | Houston | United States | Unknown status |
| Jordan, Utah Coordinator of this site? Confirm its status | Jordan | United States | Unknown status |
| Lomita, California Coordinator of this site? Confirm its status | Lomita | United States | Unknown status |
| Mason, Ohio Coordinator of this site? Confirm its status | Mason | United States | Unknown status |
| Mayfield Heights, Ohio Coordinator of this site? Confirm its status | Mayfield Heights | United States | Unknown status |
| Miami, Florida Coordinator of this site? Confirm its status | Miami | United States | Unknown status |
| New Haven, Connecticut Coordinator of this site? Confirm its status | New Haven | United States | Unknown status |
| New York, New York Coordinator of this site? Confirm its status | New York | United States | Unknown status |
| Portland, Oregon Coordinator of this site? Confirm its status | Portland | United States | Unknown status |
| San Antonio, Texas Coordinator of this site? Confirm its status | San Antonio | United States | Unknown status |
| Scottsdale, Arizona Coordinator of this site? Confirm its status | Scottsdale | United States | Unknown status |
| Spokane, Washington Coordinator of this site? Confirm its status | Spokane | United States | Unknown status |
| Tampa, Florida Coordinator of this site? Confirm its status | Tampa | United States | Unknown status |
| Troy, Michigan Coordinator of this site? Confirm its status | Troy | United States | Unknown status |
| Warren, Michigan Coordinator of this site? Confirm its status | Warren | United States | Unknown status |
| Wilmington, North Carolina Coordinator of this site? Confirm its status | Wilmington | United States | Unknown status |
This page is information, not medical advice. Discuss any trial with your doctor.