Intralesional immunotherapy of common warts: successful treatment with mumps, measles and rubella vaccine

Abstract

BACKGROUND: Despite numerous therapeutic modalities reported in the literature, treatment of common warts remains a continuing challenge and there is no universal consensus about optimal treatment. Recently, intralesional immunotherapy by different antigens has proved efficacy in the treatment of different types of warts. OBJECTIVE: To evaluate the efficacy and safety of intralesional mumps, measles and rubella (MMR) vaccine in the treatment of common warts. METHODS: The study included 135 patients with single or multiple recalcitrant or non-recalcitrant common warts. They were randomly assigned to two groups; the first group (85 patients) received intralesional MMR vaccine, and the second group (50 patients) received intralesional saline as a control group. Both treatments were injected into single lesions or largest wart in case of multiple lesions at 2-week intervals until complete clearance or for a maximum of five treatments. Follow-up was made every 2 months for 6 months to detect any recurrence. RESULTS: A highly significant difference was found between the therapeutic response of common warts to MMR vaccine and saline control group (P < 0.001). In the MMR group, complete response was achieved in 80% and 84.6% of patients presenting with recalcitrant and multiple warts respectively. No recurrence was observed in the MMR group and side effects included pain during injection and flu-like symptoms. CONCLUSIONS: Intralesional immunotherapy by MMR vaccine is a promising effective and safe treatment modality for common warts, particularly the multiple ones.

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