Efficacy and safety of rituximab in multiple sclerosis: a systematic review and meta-analysis
Acta neurologica Belgica(2023)
Abstract
Objective We aimed to synthesize all available observational studies and clinical trials of rituximab to estimate the safety and efficacy of this monoclonal antibody in people with multiple sclerosis (MS). Methods The four databases including PubMed, Scopus, Embase, and Web of Science were comprehensively searched in April 2022. We defined PICO as follows. Problem or study population (P): patients with MS; intervention (I): Rituximab; comparison (C): none; outcome (O): efficacy and safety. Results After two-step screening, a total of 27 studies entered into our qualitative and quantitative synthesis. Our analysis showed a significant decrease in EDSS score in all patients with MS after treatment (SMD: − 0.44, 95% CI − 0.85, − 0.03). In addition, the ARR was reduced after using rituximab compared to the pre-treatment period (SMD: − 0.65, 95% CI − 1.55, 0.24) but it was not significant. The most common side effect after rituximab with a pooled prevalence of 28.63% (95% CI 16.61%, 42.33%). Furthermore, the pooled prevalence of infection was 24% in patients with MS (95% CI 13%, 36%). In the end, the pooled prevalence of malignancies after rituximab treatment was 0.39% (95% CI 0.02%, 1.03%). Conclusion Our findings illustrated an acceptable safety for this treatment. However, further studies with randomized design, long follow-up, and large sample sizes are needed to confirm the safety and efficacy of rituximab in patients with MS.
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Key words
multiple sclerosis,rituximab,efficacy,meta-analysis
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