TY - JOUR T1 - Impact of baseline body mass index on the efficacy and safety of tofacitinib in patients with psoriatic arthritis JF - RMD Open JO - RMD Open DO - 10.1136/rmdopen-2020-001486 VL - 7 IS - 1 SP - e001486 AU - Jon T Giles AU - Alexis Ogdie AU - Juan J Gomez-Reino AU - Philip S Helliwell AU - Rebecca Germino AU - Lori Stockert AU - Pamela Young AU - Wael Joseph AU - Rajiv Mundayat AU - Daniela Graham AU - Christopher Ritchlin Y1 - 2021/01/01 UR - http://rmdopen.bmj.com/content/7/1/e001486.abstract N2 - Objectives This post-hoc analysis explored the impact of body mass index (BMI) on tofacitinib efficacy/safety in patients with active psoriatic arthritis (PsA).Methods Data were pooled from two phase 3 studies (NCT01877668; NCT01882439). Analyses included patients randomised to tofacitinib 5/10 mg two times a day or placebo, stratified by baseline BMI: <25 kg/m2, ≥25–<30 kg/m2, ≥30–<35 kg/m2 or ≥35 kg/m2. Endpoints (month 3): American College of Rheumatology (ACR20/50/70), Health Assessment Questionnaire-Disability Index (HAQ-DI) and Psoriasis Area and Severity Index (PASI) 75 response rates; dactylitis/enthesitis resolution rates; changes from baseline Short Form-36 Health Survey version 2 (SF-36v2) Physical/Mental Component Summary (PCS/MCS) scores and Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-F) total score. Safety was also reported.Results Analysis included 710 patients; 43.8% were obese (BMI ≥30 kg/m2). Tofacitinib demonstrated higher efficacy response rates at month 3, compared with placebo, regardless of baseline BMI. Generally, ACR20/50/70 and HAQ-DI response rates, enthesitis resolution rates and changes from baseline in SF-36v2 PCS score and FACIT-F total score (month 3) were reduced in patients with baseline BMI ≥35 kg/m2 versus patients with lower BMIs. Elevated alanine aminotransferase/aspartate aminotransferase levels were reported in patients with baseline BMI ≥35 kg/m2 receiving tofacitinib 5 mg but not 10 mg two times a day.Conclusion Tofacitinib demonstrated greater efficacy than placebo in patients with PsA, regardless of baseline BMI. For all treatment arms, reduced efficacy was observed in patients with baseline BMI ≥35 kg/m2. Safety was generally comparable across BMI categories, although the effect of tofacitinib on liver enzymes in patients with baseline BMI ≥35 kg/m2 was inconclusive. ER -