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SYSTEMATIC REVIEW article

Front. Med.

Sec. Infectious Diseases: Pathogenesis and Therapy

Volume 12 - 2025 | doi: 10.3389/fmed.2025.1591366

Meta-analysis of the efficacy of Rituximab in the Management of Cryoglobulinemic Vasculitis

Provisionally accepted
Ling  ZhouLing ZhouJianxia  DongJianxia DongZehui  DengZehui DengShaojuan  WangShaojuan WangMengjie  FuMengjie FuJingjing  PengJingjing PengJian  ZhangJian Zhang*
  • West China Hospital, Sichuan University, Chengdu, China

The final, formatted version of the article will be published soon.

A primary goal of this study was to systematically assess the efficacy of rituximab (RTX) in treating cryoglobulinemic vasculitis (CV). A prospectively registered meta-analysis was conducted to examine eligible randomized controlled trials (RCTs) or cohort studies through searches across PubMed, Embase, Cochrane Library, and Web of Science, with a search period up to February 12 , 2025. Data analysis was conducted utilizing STATA 16.0. Incorporating data from 12 studies involving 287 patients, CV patients who received RTX therapy demonstrated notable complete clinical response outcomes (Rate=0.67, 95% confidence interval (95%CI): 0.61, 0.73) and a good clinical response rate. In addition, patients showed significant relief in symptoms such as skin purpura and skin ulcer (Rate=0.92, 95%CI: 0.86,0.98). The meta-analysis findings indicated a notable enhancement in serum C4 levels in CV patients following treatment (mean difference (MD)=0.06, 95%CI: 0.04, 0.07), both at 6-month (MD=0.07, 95%CI: 0.05, 0.09) and 12-month (MD=0.07, 95%CI: 0.03, 0.11) follow-ups. These findings suggest a gradual improvement in the underlying condition. The levels of IgM were significantly reduced following treatment (MD=-0.48, 95%CI: -0.65, -0.31), both at 6-month (MD=-1.05, 95%CI: -1.57, -0.52) and 12-month (MD=-0.59, 95%CI:-0.80, - 0.38) follow-ups. The levels of cryoglobulin were also decreased following treatment (MD=-0.53, 95%CI: -0.80, -0.26), both at 6-month (MD=-0.67, 95%CI: -0.99, -0.35) and 12-month (MD=-0.67, 95%CI: -1.15, -0.19) follow-ups. Similarly, rheumatoid factor (RF) levels significantly decreased after treatment (MD=-318.20,95%CI:- 364.66,-271.73) and remained low at the 6-month follow-up (MD=-287.78, 95%CI:- 511.58,-63.97). The meta-analysis supports the favorable clinical efficacy of rituximab in the management of CV patients. However, further validation through additional high-quality RCTs is warranted to solidify its effectiveness.

Keywords: rituximab, Cryoglobulinemic vasculitis, Vasculitis Meta-analysis, clinical efficacy, Anti-CD20

Received: 14 Mar 2025; Accepted: 14 Aug 2025.

Copyright: © 2025 Zhou, Dong, Deng, Wang, Fu, Peng and Zhang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

* Correspondence: Jian Zhang, West China Hospital, Sichuan University, Chengdu, China

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