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Topical ivermectin-metronidazole gel therapy in the treatment of blepharitis caused by Demodex spp.: A randomized clinical trial.

Cont Lens Anterior Eye. 2020 May 24;:

Authors: Ávila MY, Martínez-Pulgarín DF, Rizo Madrid C

Abstract
PURPOSE: To evaluate the efficacy of topical ivermectin-metronidazole combined therapy in the management of Demodex-associatedblepharitis.
METHODS: Sixty patients with a diagnosis of Demodex-associatedblepharitis were recruited in a randomized clinical trial. Thirty receiving topical ivermectin (0.1%)-metronidazole (1%) gel treatment on days 0, 15 and 30. Thirty additional patients were used as a control group receiving vehicle on days 0, 15 and 30. The primary efficacy measure was the number of Demodex spp. mitesin the eyelashes of patients. The secondary outcomes included clinical improvement of signs and adverse events.
RESULTS: Complete eradication of Demodex spp. was found in 96.6% of patients in the treatment group. Furthermore, a significant reduction of inflammation signs were found in all treated patients versus controls. None of the patients experienced any adverse effects associated with the treatment.
CONCLUSION: Demodex infection was controlled satisfactorily with the ivermectin (0.1%)-metronidazole (1%) gel, and no adverse effects were observed. Application of this gel for the treatment of different parasitic infections of the eyelids could be feasible, and this requires further exploration.

PMID: 32461053 [PubMed - as supplied by publisher]

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