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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.
Sponsor: Pfizer
Summary
The purpose of this study is to learn about the safety and effects of the study medicine (called Ritlecitinib) for the possible treatment of hidradenitis suppurativa (HS). HS is a disease causing long lasting painful red skin lumps. This study is seeking participants who: * have moderate or severe HS * have previously received antibiotics for HS that did not help, or could not tolerate antibiotics Participants will be randomly (like a flip of coin) assigned to receive either the study medicine or a placebo (a pill that looks like the study medicine but does not contain any medicine). The study medicine or placebo will be taken by mouth once daily at home. For the first part of the study, participants will receive a loading (starting) dose. For the next part of the study, participants will receive a maintenance (ongoing) dose. Participants will take part in the study for about 24 weeks (about 6 months). There will be about 10 study clinic visits: a screening visit, Day 1, and then every 1, 2, or 4 weeks until week 16. At each visit, participants will report on their health and have tests such as physical exams, blood and urine tests, vital signs, chest X-rays, ECGs, hearing tests, and questionnaires. Participants will record when they take the study medicine and their HS symptoms every day in an eDiary on a mobile phone. The experiences of participants receiving the study medicine will be compared to those receiving placebo to help see if the study medicine is safe and effective.
Official title: A PHASE 2, MULTICENTER, RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED, 16-WEEK STUDY EVALUATING THE SAFETY AND EFFICACY OF RITLECITINIB (PF-06651600) IN ADULTS WITH MODERATE TO SEVERE HIDRADENITIS SUPPURATIVA
Key Details
Gender
All
Age Range
18 Years - 75 Years
Study Type
INTERVENTIONAL
Enrollment
240
Start Date
2025-11-13
Completion Date
2027-04-02
Last Updated
2025-11-24
Healthy Volunteers
No
Conditions
Interventions
Ritlecitinib
Participants will receive one oral dose once daily (QD), starting with a loading dose of ritlecitinib for 8 weeks, followed by maintenance for 8 weeks.
Placebo
Participant will receive matching placebo
Locations (4)
Northridge Clinical Trials
Northridge, California, United States
Dawes Fretzin Clinical Research Group, LLC
Indianapolis, Indiana, United States
Revival Research Institute, LLC
Troy, Michigan, United States
ClinOhio Research Services
Columbus, Ohio, United States