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B7981118 - 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

Status
Not yet recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2025-522642-44-00
Enrollment
7
Registered
2026-02-25
Start date
Unknown
Completion date
Unknown
Last updated
2026-02-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

CHRONIC SPONTANEOUS URTICARIA

Brief summary

Change from baseline in UAS7 at Week 12, Incidence of TEAEs, SAEs, and AEs leading to discontinuation

Detailed description

Change from baseline in UAS7 at all timepoints except Week 12, Change from baseline in ISS7 at Week 12, Change from baseline in HSS7 at Week 12, Achieving complete response defined as UAS7=0 at Week 12, Achieving UAS7 ≤6 at Week 12, Achieving complete response defined as ISS7=0 at Week 12, Achieving complete response defined as HSS7=0 at Week 12, Time to achieving UAS7 ≤6, Time to achieving improvement from baseline ≥10 in UAS7, Incidence of TEAEs, SAEs, and AEs leading to discontinuation

Interventions

Sponsors

Pfizer Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Change from baseline in UAS7 at Week 12, Incidence of TEAEs, SAEs, and AEs leading to discontinuation

Secondary

MeasureTime frame
Change from baseline in UAS7 at all timepoints except Week 12, Change from baseline in ISS7 at Week 12, Change from baseline in HSS7 at Week 12, Achieving complete response defined as UAS7=0 at Week 12, Achieving UAS7 ≤6 at Week 12, Achieving complete response defined as ISS7=0 at Week 12, Achieving complete response defined as HSS7=0 at Week 12, Time to achieving UAS7 ≤6, Time to achieving improvement from baseline ≥10 in UAS7, Incidence of TEAEs, SAEs, and AEs leading to discontinuation

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 26, 2026