A Study to Learn About Ritlecitinib for the Potential Treatment of Chronic Spontaneous Urticaria in Adults.
Public ClinicalTrials.gov record NCT07219615. 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 2B RANDOMIZED, DOUBLE-BLIND, 12-WEEK PLACEBO-CONTROLLED STUDY WITH A 12-WEEK DOUBLE-BLIND EXTENSION PERIOD TO EVALUATE THE EFFICACY, SAFETY AND TOLERABILITY OF RITLECITINIB (PF-06651600) IN ADULT PARTICIPANTS WITH CHRONIC SPONTANEOUS URTICARIA
Study identification
- NCT ID
- NCT07219615
- Recruitment status
- Recruiting
- Study type
- Interventional
- Phase
- Phase 2
- Lead sponsor
- Pfizer
- Industry
- Enrollment
- 200 participants
Conditions and interventions
Conditions
Interventions
- Placebo - 100 mg Drug
- Placebo - 50 mg Drug
- Ritlecitinib 100 mg Drug
- Ritlecitinib 50 mg Drug
Drug
Eligibility (public fields only)
- Age range
- 18 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
- Oct 29, 2025
- Primary completion
- Dec 24, 2026
- Completion
- Apr 22, 2027
- Last update posted
- Apr 12, 2026
2025 – 2027
United States locations
- U.S. sites
- 11
- U.S. states
- 8
- U.S. cities
- 11
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Acuro Research, Inc. | Little Rock | Arkansas | 72205 | Not yet recruiting |
| Kern Research. Inc. | Bakersfield | California | 93301 | Recruiting |
| Antelope Valley Clinical Trials | Lancaster | California | 93534 | Recruiting |
| Skin & Beauty Center - Pasadena | Pasadena | California | 91105 | Recruiting |
| Asthma and Allergy Associates, PC | Colorado Springs | Colorado | 80907 | Not yet recruiting |
| Asthma and Allergy Center of Chicago | River Forest | Illinois | 60305 | Recruiting |
| Chesapeake Clinical Research | White Marsh | Maryland | 21162 | Recruiting |
| University of Michigan | Ann Arbor | Michigan | 48109 | Not yet recruiting |
| Revival Research Institute, LLC | Troy | Michigan | 48084 | Recruiting |
| Allergy, Asthma, & Clinical Research Center | Oklahoma City | Oklahoma | 73120 | Recruiting |
| Complete Dermatology | Sugar Land | Texas | 77479 | Recruiting |
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 41 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT07219615, 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 12, 2026 · Synced May 19, 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 protocol, eligibility criteria, and contact information for NCT07219615 live on ClinicalTrials.gov.