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12.01.2021 | Original Paper

Cryotherapy plus low-dose oral isotretinoin vs cryotherapy only for the treatment of anogenital warts: a randomized clinical trial

Zeitschrift:
Archives of Dermatological Research
Autoren:
Irving Llibran Reyna-Rodríguez, Sonia Chavez-Alvarez, Veronica Garza-Rodríguez, Rodolfo Franco-Marquez, Gerardo Gonzalez-Martinez, Jorge Ocampo-Candiani, Alejandra Villarreal-Martinez
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Abstract

Background

Anogenital warts are a common human papillomavirus infection. They cause emotional distress, especially when they are in the anogenital region. Cryotherapy is a first-line treatment. Previous clinical trials and case series have reported variable results with retinoids (isotretinoin) as adjuvant therapy.

Objective

To determine the safety and efficacy of low-dose oral isotretinoin as adjuvant treatment of anogenital warts.

Methods

Forty-six patients with anogenital warts were randomly assigned to isotretinoin + cryotherapy (n = 23) or only cryotherapy (n = 23). Patients were allocated via an interactive web-based randomization system. Evaluators were blinded to treatments. Isotretinoin 20 mg/daily + cryotherapy or cryotherapy were prescribed for 6 weeks. Patients were followed for 4 months. Genotyping of lesions was performed before treatment started. Dermatology Life Quality Index (DLQI) and Columbia-Suicide Severity Rating Scale (C-SSRS) were measured at the beginning and end of therapy. All patients completed the study.

Results

Both Groups had 50% clearance at the end of treatment. Recurrence in the combined group was not significantly lower than in the cryotherapy group (P = 0.59). Improvement was observed in the DLQI of all patients in both groups (P = 0.001). No suicidal intention was detected with the C-SSRS. Two patients (one in each group) had liver function test abnormalities after treatment.

Conclusion

Combined therapy showed a slight not significant efficacy for anogenital warts in Hispanic patients. Low-dose isotretinoin seems to be safe even when it is used with cryotherapy on anogenital warts.

Trial registration

On April 25, 2019 with registration number DE19-00004, CONBIOÉTICA-19-CEI-001–20160404. Prospectively registered.

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