# Pfizer: Phase 2 study closed enrollment, 128 enrolled (Hidradenitis Suppurativa)

**Score:** 75/100

| Field | Value |
|---|---|
| Sponsor | Pfizer |
| Sponsor type | Industry (pharma, biotech, medtech) |
| Study | A 16-Week Study to Learn About the Study Medicine Called Ritlecitinib in Adults With Long Lasting Painful Red Skin Lumps, Known by the Medical Term, Hidradenitis Suppurativa, or HS. |
| NCT ID | NCT07228390 |
| Phase | Phase 2 |
| Status | active not recruiting |
| Conditions | Hidradenitis Suppurativa |
| Intervention types | drug |
| Target enrollment | 128 |
| Site countries | United States, Canada, Germany, Greece, Poland, Spain |
| Posted | 2025-11-14 |
| Planned start | 2025-11-13 |
| Event | Enrollment closed (active, not recruiting) |
| Event date | 2026-10-20 |
| Last update posted | 2026-10-20 |

## Why this score
- Industry sponsor (buys outsourced services).
- Enrollment closed: data management, monitoring and closeout ahead.
- Phase 2: multi-site, larger budget.
- 128 participants planned.

Source: ClinicalTrials.gov (U.S. National Library of Medicine) API v2 (https://clinicaltrials.gov/study/NCT07228390). Last refreshed: 2026-11-04T06:04:38.232Z.
From public ClinicalTrials.gov registrations. Sponsor and study level only: we never list investigators, contacts or participants. A registration describes a planned study and can change. Status changes are read from each study's current status, actual dates and latest posted update, not a full change history, so an update can be a correction rather than a new change. Verify on ClinicalTrials.gov.