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摘要
Objectives: We aim to report the efficacy and safety of rituximab (RTX) in patients diagnosed with juvenile systemic lupus erythematosus (JSLE) or juvenile idiopathic arthritis (JIA) refractory to conventional treatment.
Methods: A retrospective review was made of all medical records of patients with JSLE or JIA treated with RTX between January 2009 and January 2015 in the Pediatric Rheumatology Unit of a central hospital.
Results: Five patients, 4 with JSLE and 1 with extended oligoarticular JIA, received 10 cycles of RTX (23 infusions). The scheme of RTX frequently used was 750 mg/m(2) two weeks apart. The median follow-up time after receiving the first cycle of RTX was 24 months (12 70). The four patients with JSLE were female (three caucasian and one black). The patient with JIA was a caucasian male. The median age at diagnosis was 10 years (16 months - 17years). The median evolution time until receiving RTX was 6 years (5 months 15 years). Refractory class IV lupus nephritis was the most common indication for receiving RTX. Previous treatment to RTX included nonsteroidal anti-inflammatory drugs, disease-modifying anti-rheumatic drugs, immunosuppressive drugs and corticosteroids in all patients and anti-TNF alpha (etanercept) in the patient with JIA. It was possible to reduce the mean oral corticosteroid dose after RTX, ranging from 23 mg/day (20-25mg/day) before RTX to 11 mg/day (0-20 mg/day) at the last evaluation. Disease activity also improved when comparing the period before RTX with the last evaluation. The SLEDAI score, for JSLE, decreased from a median of 15, 5 (11-18) to 3 (0-6), and the JADAS-27 score, for JIA, also diminished from 40.4 to 3.5. Adverse events occurred in 2 patients, including delayed second dose after the diagnosis of cryptococcosis and respiratory tract infection with concomitant hypogammaglobulinemia needing of immunoglobulin replacement and antibiotic therapy.
Conclusions: Rituximab might have a role in the treatment of JSLE and JIA. However controlled studies and long term follow-up are needed to evaluate its safety and efficacy.
- 出版日期2016-3
