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Abstract
Objective: To study the effectiveness and safety of anti-CD20 B-cell antibody rituximab (RTX) in the treatment of ocular mucous membrane pemphigoid (MMP).
Methods: Retrospective analysis of six MMP patients receiving RTX with or without concomitant immunosuppression. RTX was administered as a high dose regimen (1000 mg/infusion, day 0 and day 14/cycle). Five patients received more than one cycle. Main outcome measure was the treatment response, defined as complete remission (CR) or partial remission (PR), monitored at 16 and 24 weeks. As secondary outcome measure, drug-related adverse events were evaluated.
Results: All patients responded within 16 weeks. Initial treatment response vanished in five of six patients at a mean of 10 months (± 4.4 standard deviation [SD]). A second cycle was initiated thereafter (interval 12 months ± 6.4 SD) resulting in CR in two of five and PR in three of five patients. One patient stabilized only when additional immunosuppression was initiated. Mean follow up was 22 months (± 8.2 SD).Two individuals experienced infusion reactions.
Conclusions: Our study adds long-term data to the very limited experience with biologicals in MMP, indicating that RTX is a promising option for patients with advanced disease. We report for the first time the high dose regimen of RTX applied in a consecutive series.
Declaration of interest
The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents, received or pending, or royalties.