Use of Specific JAK Inhibition on Inflammatory Skin and Scalp Diseases in Down Syndrome R61AR084210
This is a single-center, open-label, basket phase 2b trial that will enroll Down Syndrome (DS) participants with at least one inflammatory skin condition (Atopic Dermatitis (AD) and/or Alopecia Areata (AA)). Patients will receive Abrocitinib 100 mg daily for 12 weeks. Responders (defined as achieving Eczema Area and Severity Index (EASI) 75 response for AD, or SALT \<= 20 for AA) will be kept on this dose, and non-responders based on these definitions, will initiate 200 mg daily for another 12 weeks. All AD and AA patients will be maintained on the respective dose of Abrocitinib from Week 24 through week 60.
⁃ Participants must meet all of the following criteria to be eligible as study participants:
• Male or female participants who are at least 12 years old, for whom signed informed consent can be provided by parent or legal guardian/LAR prior to participation in any study assessments or procedures.
• Diagnosis of Trisomy 21 or translocation Down Syndrome.
• Participant is able to adhere to the study visit schedule and other protocol requirements.
• Females of childbearing potential (FCBP) must have a negative pregnancy test at Screening and Week 0/Baseline. While on investigational product and for at least 28 days after taking the last dose of investigational product (IP), FCBP who engage in activity in which conception is possible must use one of the approved contraceptive options described below: a. Any one of the following highly effective methods: hormonal contraception (oral, injection, implant, transdermal patch, vaginal ring); intrauterine device (IUD); tubal ligation; or partner's vasectomy; or b. Male or female condom (latex condom or non-latex condom NOT made out of natural \[animal\] membrane \[for example, polyurethane\]).
• Participant has a history of ≥6 months AD (≥7%BSA) or AA (≥25% scalp involvement). If the participant presents with both conditions, but only one meets the inclusion criteria, then the participant can only be enrolled under that category. If a participant meets inclusion criteria for both conditions at the Baseline visit, then the participant will be enrolled under the AA category as this disease is less prevalent. If the AA category has fulfilled its enrollment target, then the participant will be enrolled in the AD category.
• Participant is judged to be in otherwise good overall health following a detailed medical and medication history, physical examination, and laboratory testing.