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Comparison between the efficacy of photodynamic therapy and topical paromomycin in the treatment of old world cutaneous leishmaniasis: A placebo-controlled, randomized clinical trial

Author(s): Asilian Ali | Davami Majid

Journal: Indian Journal of Dermatology
ISSN 0019-5154

Volume: 51;
Issue: 3;
Start page: 182;
Date: 2006;
Original page

Keywords: Cutaneous leishmaniasis | photodynamic therapy | paromomycin | topical therapy

Background: The optimal treatment for cutaneous leishmaniasis (CL) is not known. Topical paromomycin is one of the many drugs that have been suggested for the treatment of CL caused by Leishmania major. Recently, topical photodynamic therapy (PDT) has been reported to be effective in the treatment of CL. This study aimed to compare the parasitological and clinical efficacy of PDT versus topical paromomycin in patients with old world CL caused by L. major in Iran. Materials and Methods: In this trial, sixty patients with the clinical and parasitological diagnosis of CL were recruited and were randomly divided into three treatment groups with twenty subjects in each group. Group 1 was treated with weekly topical PDT and groups 2 and 3 received twice daily topical paromomycin and placebo, respectively. The duration of treatment was four weeks for all groups. These groups were followed up for 2 months after the end of treatment. Results: 57 patients with 95 lesions completed the study. At the end of the study, complete improvement was seen in 29 of 31 (93.5%), 14 of 34 (41.2%) and 4 of 30 (13.3%) of the lesions in group 1, 2 and 3 respectively ( P < 0.001). At the same time point, 100%, 64.7 and 20% of the lesions had parasitological cure in group 1, 2 and 3, respectively ( P < 0.001). Conclusion: Topical PDT can be used safely as a rapid and highly effective alternative choice for treatment of old world CL in the selected patients.

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