Journal
DERMATOLOGIC THERAPY
Volume 35, Issue 9, Pages -Publisher
WILEY
DOI: 10.1111/dth.15704
Keywords
efficacy; long-term; pemphigus; rituximab; safety
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Rituximab has been shown to have long-term efficacy and safety in the treatment of pemphigus. This retrospective analysis of 76 patients found that 82.7% achieved complete remission on or off therapy, with 35.5% experiencing relapse during follow-up. The use of rituximab can reduce the cumulative dose of prednisolone.
Pemphigus poses a therapeutic challenge and rituximab is increasingly used in its treatment. Long-term data regarding efficacy and safety of rituximab in pemphigus is limited. This study was a retrospective analysis of 76 pemphigus patients with primary endpoint being the percentage of patients achieving complete remission (CR) on/off therapy. Secondary endpoints were time to relapse, mean cumulative dose of prednisolone after rituximab infusion, mean duration of follow up, and adverse events to rituximab if any. A total of 62 (82.7%) attained complete remission on/off treatment, out of which 42 were off therapy. Mean interval between rituximab administration and complete remission off treatment was 6.9 +/- 3.7 months. Complete remission off treatment was sustained for a mean duration of 21.4 +/- 17.8 months before relapse. Over a mean follow-up duration of 42.7 +/- 24.9 months (median 41, maximum 83 months), 22 of 62 patients (35.5%) who had achieved complete remission after the first cycle of rituximab relapsed. A mean total cumulative dose of 8716.3 +/- 10533.8 mg prednisolone was prescribed over a mean duration of 18.05 +/- 15.64 months after the first cycle of rituximab. Adverse events were noted in 18 out of 76 patients (23.7%) which included infusion reactions (n = 3), minor infections (n = 7), transitory disease flare (n = 6), and mortality (n = 2). No statistically significant correlation was found between remission/relapse rates and age, gender or pemphigus subtype. This study substantiates the long-term efficacy and safety of single cycle of rituximab in pemphigus.
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