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  • Title: B-cell depletion with rituximab for refractory head and neck Wegener's granulomatosis: a cohort study.
    Author: Martinez Del Pero M, Chaudhry A, Jones RB, Sivasothy P, Jani P, Jayne D.
    Journal: Clin Otolaryngol; 2009 Aug; 34(4):328-35. PubMed ID: 19673980.
    Abstract:
    OBJECTIVES: This study aimed to evaluate the response of refractory Wegener's granulomatosis affecting the ear, nose and throat and granulomatous eye disease to B-cell depletion with rituximab. DESIGN: A retrospective case note review. SETTING: Tertiary Centre. PARTICIPANTS: All patients who received rituximab for refractory Wegener's granulomatosis affecting the head and neck were included. MAIN OUTCOME MEASURES: Demographic and follow-up data at five time points were recorded. Response was measured using change in the Birmingham Vasculitis Activity Score and prednisolone dose. Secondary outcomes included changes in additional immunomodulators and anti-neutrophil cytoplasm antibodies serology. Adverse events were recorded for the duration of follow-up. RESULTS: Thirty-four patients were included in the analysis. The median age was 47, the male to female ratio was 3 : 2 and the overall median follow-up was 25.5 months. At six months, nine (26%) patients had a partial response, twenty-one (62%) were in remission and four (12%) did not respond. All four non-responders went into remission after a second course of rituximab. Total Birmingham Vasculitis Assessment score decreased after rituximab at all time points (P < 0.001). Four of five patients with retro-orbital involvement responded well to treatment. Two patients were considered secondary failures requiring alternative therapy after an initial response. Adverse events included four major chest infections, two cancers and six infusion reactions. CONCLUSIONS: Our cohort derived considerable benefit from rituximab permitting a reduction in immunosuppressive exposure and prednisolone dose with few major adverse effects. There was an 80% (4/5) response in patients with retro-orbital granulomas. The effect of rituximab was most noticeable in the first 6 months (88% response).
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