Journal Article Efficacy and safety of rituximab in Japanese patients with systemic lupus erythematosus and lupus nephritis who are refractory to conventional therapy

Tanaka, Yoshiya  ,  Takeuchi, Tsutomu  ,  Miyasaka, Nobuyuki  ,  Sumida, Takayuki  ,  Mimori, Tsuneyo  ,  Koike, Takao  ,  Endo, Kazuhiro  ,  Mashino, Naomi  ,  Yamamoto, Kazuhiko

26 ( 1 )  , pp.80 - 86 , 2016-01 , Taylor & Francis
ISSN:1439-7595
Description
Objectives. To evaluate the efficacy and safety of rituximab in Japanese patients with systemic lupus erythematosus (SLE) and lupus nephritis (LN) who are refractory to conventional immunosuppressive therapy.Methods. Eligible patients received rituximab at a dose of 1,000 mg at days 1, 15, 169, and 183, and were followed for 53 weeks after the first dose of rituximab. Overall disease activity was assessed monthly using a British Isles Lupus Assessment Group activity index. Patients with LN (Upr/Ucr ≥ 1.0 at study entry) were identified and their renal responses were evaluated according to the criteria proposed by the American College of Rheumatology (ACR) and the Lupus Nephritis Assessment with Rituximab (LUNAR) study.Results. A total of 34 patients were enrolled and received at least one dose of rituximab. Decrease in disease activity was achieved in 16 (76.5%) out of 34 patients. In 17 patients with LN, response rates of 58.8% and 52.9% by ACR and LUNAR criteria, respectively, were seen. Successful steroid tapering was achieved in association with disease remission. Rituximab was well tolerated, and most adverse drug reactions were grade 1–2 in severity.Conclusions. Rituximab is effective for treatment of Japanese patients with SLE and LN refractory to conventional therapy.
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