Enrolling Clinical Research Studies Alopecia Areata Atherosclerotic Cardiovascular Disease (ASCVD) Chronic Spontaneous Urticaria (CSU) Hidradenitis Suppurativa (HS) Migraine [Chronic] Migraine [Episodic] Palmoplantar Pustulosis Stress Urinary Incontinence Type 2 Diabetes, Hypertension and established Cardiovascular Disease Hidradenitis Suppurativa (HS) Hidradenitis Suppurativa Please click the following link for more information: Study Details | NCT07228390 | 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. | ClinicalTrials.gov Apply Now Back to clinic