Rapidity of Improvement in Signs/Symptoms of Moderate-to-Severe Atopic Dermatitis by Body Region with Abrocitinib in the Phase 3 JADE COMPARE Study

Atopic dermatitis (AD) can affect multiple body regions and is especially burdensome when involving exposed skin areas. Rapid, effective treatment of AD across body regions remains an unmet need, particularly for difficult-to-treat areas such as the head and neck area. We investigated the temporal and regional patterns of clinical improvement in AD with the use of abrocitinib, an orally available Janus kinase 1 selective inhibitor under development for the treatment of moderate-to-severe AD.We performed a post hoc analysis of data from JADE COMPARE, a phase 3, multicenter, randomized, double-blind, double-dummy trial that evaluated the efficacy and safety of abrocitinib 200 mg once daily, abrocitinib 100 mg once daily, dupilumab 300 mg subcutaneous injection every 2 weeks, and placebo in adult patients with moderate-to-severe AD who were concomitantly receiving medicated topical therapy. Assessments included the Eczema Area and Severity Index (EASI) and SCORing Atopic Dermatitis (SCORAD) index.With abrocitinib 200 mg, time to ≥ 75% improvement in EASI (EASI-75) occurred at a median of 29 days across body regions, including the head and neck region. With abrocitinib 100 mg, EASI-75 response was achieved at a median of 30-32 days for the trunk and lower limbs, and at 56-57 days for the head and neck region and upper limbs. With dupilumab, EASI-75 response was achieved at a median of 43 days for the trunk and 57 days for other regions. EASI body region scores significantly improved with abrocitinib 200 mg and 100 mg versus placebo at week 2 (p < 0.0001 for all comparisons). Improvements with abrocitinib were maintained up to week 16.Rapid and persistent improvement in AD across all body regions was observed with abrocitinib treatment. Abrocitinib may be useful in patients with AD that affects difficult-to-treat anatomical areas or who require a rapid response.Clinicaltrials.gov identifier: NCT03720470.Atopic dermatitis (AD) is the most common form of eczema. It is a long-lasting skin disease that often affects multiple body regions. AD may decrease a person’s quality of life, especially when it involves skin areas that are visible to others. Quick, effective treatment for AD across multiple body regions is needed, especially in areas that are difficult to treat and/or cosmetically important, such as the head and neck area. Abrocitinib is a medicine taken orally that is being developed to treat moderate-to-severe AD. Researchers analyzed data from a clinical study called JADE COMPARE (Clinicaltrials.gov identifier: NCT03720470). It evaluated the effectiveness and safety of abrocitinib 200 mg taken once daily, abrocitinib 100 mg taken once daily, and placebo (no study medication) plus medicated skin cream in adults with moderate-to-severe AD. Abrocitinib 200 mg and 100 mg significantly improved the extent and severity of AD as assessed by a measure called the Eczema Area and Severity Index (EASI) compared to placebo at week 2. Improvements were maintained for up to 16 weeks. With abrocitinib 200 mg, the time to ≥ 75% improvement in EASI (EASI-75) was approximately 29 days across body regions, including the head and neck region. With abrocitinib 100 mg, this EASI-75 response occurred at approximately 30 to 32 days for the trunk and legs and at 56 to 57 days for the head and neck region and arms. Abrocitinib may be effective in people with AD that affects difficult-to-treat parts of the body or in those who need a fast response.