Lilian Otalora Rojas, Karishma Ramsubeik, Luis Sanchez-Ramos, Shastri Motilal, Jasvinder A Singh, Gurjit S Kaeley
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引用次数: 0
Abstract
Objective: This systematic review and meta-analysis assess the efficacy and safety of rituximab (RTX) in treating idiopathic inflammatory myositis (IIM).
Methods: PubMed and Embase were systematically searched for trials and observational studies involving RTX use in IIM. Data were analyzed using a random-effects model to generate pooled estimates for overall response, complete remission, partial response, and adverse events, with subgroup analyses by myositis type and RTX dosage (PROSPERO registered number CRD42022353740). Risk of bias assessments were done using the Newcastle-Ottawa Scale for observational studies and risk of bias 1 tool for trials.
Results: Seventeen studies (1 randomized controlled trial and 16 observational studies), encompassing 362 patients, were included. The overall pooled response rate was 70% (95% confidence interval [CI]: 57%-82%; I2 = 74%, p < 0.001). Complete remission occurred in 13% (95% CI: 3%-25%; I2 = 79%, p < 0.001) and partial response in 48% (95% CI: 30%-67%; I2 = 87%, p < 0.001), both with significant heterogeneity. Subgroup analysis revealed high response rates across all myositis types: polymyositis 69%, dermatomyositis 67%, antisynthetase syndrome 70%, juvenile dermatomyositis 60%, and immune-mediated necrotizing myopathy 86%. Response rates were similar between RTX induction doses of 1 g IV on days 0 and 14 (68%) and 375 mg/m 2 weekly for 4 weeks (71%). Reported adverse events totaled 120, including infusion reactions (18.5%) and infections (12.4%).
Conclusions: RTX shows a favorable clinical response in IIM treatment, though response rates vary. There was a significant heterogeneity in treatment effect estimates that are based on a small number of patients. The incidence of infusion reactions and infections highlights the need for careful monitoring. Further controlled trials are essential to refine treatment protocols and evaluate long-term outcomes for RTX's role in IIM.
期刊介绍:
JCR: Journal of Clinical Rheumatology the peer-reviewed, bimonthly journal that rheumatologists asked for. Each issue contains practical information on patient care in a clinically oriented, easy-to-read format. Our commitment is to timely, relevant coverage of the topics and issues shaping current practice. We pack each issue with original articles, case reports, reviews, brief reports, expert commentary, letters to the editor, and more. This is where you''ll find the answers to tough patient management issues as well as the latest information about technological advances affecting your practice.