Key clinical point: Final analysis of OPAL Balance confirms long-term safety and efficacy of tofacitinib in patients with psoriatic arthritis.
Major finding: Only 1 instance of mortality occurred in tofacitinib group during the risk period (incidence, 0.1 patients with events [95% confidence interval, 0.0-0.3] per 100 person-years). The incidences of adverse events for herpes zoster, serious infections, opportunistic infections, adjudicated malignancies, and major adverse cardiovascular events were consistent as reported previously. Efficacy was sustained up to 36 months.
Study details: Findings are from OPAL Balance, a 36-month, long-term extension phase 3 study involving 686 adult patients with active PsA. Eligible patients (n=180) from the open-label phase entered the randomized, double-blind, 12-month methotrexate withdrawal substudy where they received open-label tofacitinib 5 mg twice daily with either masked placebo or masked methotrexate.
Disclosures: OPAL Balance was funded by Pfizer. The authors including the lead author reported receiving grants/consulting fees, speaker fees, and/or honoraria from various sources including Pfizer. Six of the authors reported being employees and shareholders of Pfizer.
Source: Nash P et al. Lancet Rheumatol. 2021 Apr 1. doi: 10.1016/S2665-9913(21)00010-2 .