Key clinical point: The overall incidence of hematologic malignancies was not higher among patients with psoriatic arthritis (PsA) receiving treatment with tumor necrosis factor inhibitors (TNFi) compared with those who were biological disease-modifying antirheumatic drug (bDMARD) naive or individuals from the general population.
Major finding: Overall, the incidence rate of hematologic malignancies was similar among patients treated with TNFi vs those who were bDMARD naive (incidence rate ratio [IRR] 0.96; 95% CI 0.68-1.35) or individuals in the general population (IRR 1.35; 95% CI 0.98-1.86).
Study details: Findings are from a cohort study including patients with PsA who either initiated first TNFi (n = 10,621) or were bDMARD-naive (n = 18,387) and matched comparators from the general population.
Disclosures: This study was supported by NordForsk and FOREUM. B Delcoigne declared being partly employed by ARTIS/Swedish Biologics Register. Several authors reported receiving grants or research support or serving as consultants for or on speaker’s bureaus of various sources.
Source: Cordtz RL et al. Haematological malignancies in patients with psoriatic arthritis overall and treated with TNF inhibitors: A Nordic cohort study. RMD Open. 2022;8(2):e002776 (Dec 23). Doi: 10.1136/rmdopen-2022-002776