Key clinical point: ABP 501, an adalimumab biosimilar, was safe and effective for the treatment of plaque-type psoriasis and psoriatic arthritis (PsA) irrespective of whether patients were originator-naive or switched from the reference adalimumab.
Major finding: In originator-naive patients, mean Psoriasis Area and Severity Index (PASI) significantly improved from baseline to week 24 ( P less than .0001). Among patients who underwent nonmedical switch from adalimumab to ABP 501, PASI (0.45 vs. 0.45) and 28-joints Disease Activity Score erythrocyte sedimentation rate (2.35 vs. 2.31) were not significantly different at 16 weeks before to 24 weeks after the switch. The incidence of adverse events was similar in ABP 501 vs. adalimumab groups (67.2% vs. 63.6%).
Study details: Data come from a retrospective, real-life study of 94 patients with psoriasis and PsA who received ABP 501, of which 46 patients underwent a nonmedical switch from the adalimumab reference product to ABP 501.
Disclosures: The study did not receive any funding. A Giunta reported serving as a consultant, board member, and/or speaker for various sources. No other disclosures were reported.
Source: Giunta A et al. Curr Med Res Opin. 2021 May 20. doi: 10.1080/03007995.2021.1923467 .