Introduction: Tofacitinib has emerged as a therapeutic option for axial spondyloarthritis (axSpA) following successful clinical trials. The evidence on the efficacy of tofacitinib generics in the management of axSpA is limited. In India, the usage of conventional synthetic disease-modifying anti-rheumatic drugs (csDMARDs) is commonplace in the management of axSpA. Our primary aim was to identify the csDMARD and non-steroidal anti-inflammatory drug (NSAID)-sparing role of tofacitinib generics in an axSpA population.
Methods: This was a retrospective study in a real-world clinical setting. Data from nine rheumatology centers across India were analyzed for 168 patients with active axSpA who were initiated on generic tofacitinib 5 mg twice daily in conjunction with csDMARDs and NSAIDs, over a duration of six months. Our primary outcome was to evaluate the csDMARD and NSAID-sparing effect of tofacitinib generics, while the secondary outcome assessed safety profiles and efficacy at six months.
Results: The median Ankylosing Spondylitis Disease Activity Score (ASDAS) erythrocyte sedimentation rate (ESR) score of the study population was 3.91 (3.26, 4.56). Alongside tofacitinib generics, 121 (72%) patients were co-administered csDMARDs (methotrexate/sulfasalazine/both), and 90 (53.6%) patients were co-administered NSAIDs. The csDMARD, NSAID, and combined csDMARD + NSAID-sparing effects of tofacitinib generics were seen in 85 (50.6%), 156 (92.9%), and 81 (48.2%) patients, respectively. Adverse events were mild and well-tolerated. At six months, 124 (57.9%) patients had attained clinically important improvement in ASDAS ESR score, and the median decrease in ASDAS ESR score was 2.02 (1.18, 2.96).
Conclusion: This real-world study provides evidence supporting the csDMARD and NSAID-sparing ability of tofacitinib generics in the treatment of axSpA. Tofacitinib generics displayed a good safety profile and showed signals of efficacy as well.
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