Pilot study to evaluate a plasma device for the treatment of onychomycosis

Summary

Onychomycosis is a fungal infection of the nail unit, and is the most common of the nail disorders. Current therapies for onychomycosis have less than ideal efficacy and have the potential for adverse effects. As previous studies have shown that nonthermal plasma inhibits the in vitro growth of Trichophyton rubrum, we conducted a pilot study on 19 participants with toenail onychomycosis. The primary endpoint was safety of the device, and secondary outcome measures were clinical efficacy and mycological cure. Patient satisfaction was measured using questionnaires at the completion of the study. All but one patient met the primary endpoint of safety and there were no long-term sequelae. The overall clinical cure was 53.8% and the mycological cure was 15.4%. The majority of patients were satisfied with the treatment. Our conclusions are that nonthermal plasma is a safe treatment and may have a beneficial effect on toenail onychomycosis.

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