Comparative Study of Topical 80% Trichloroacetic Acid With 35% TrichloroaceticAcid in the Treatment of the Common Wart
November 2012 | Volume 11 | Issue 11 | Original Article | 66 | Copyright © November 2012
Fakhrozaman Pezeshkpoor MD,a Mahnaz Banihashemi MD,a Mohammad Javad Yazdanpanah MD,a Hadis Yousefzadeh,b Mohammad Sharghi MD,c Hossein Hoseinzadehd
aResearch Center for Cutaneous Leishmaniasis, Ghaem Hospital, Faculty of Medicine, Mashhad University of Medical Sciences (MUMS), Mashhad, Iran bImmunology PhD Student, Student Research Assembly of MUMS, MUMS, Mashhad, Iran cResident of Dermatology, Faculty of Medical Sciences, MUMS, Mashhad, Iran dGeneral Physician, Faculty of Medical Sciences, MUMS, Mashhad, Iran
Methods: In this single-blinded clinical trial, 62 eligible patients with common warts referred to the dermatology clinic of Ghaem Hospital in Mashhad, Iran. Patients were randomly divided into two groups, each treated with a TCA solution (group A, TCA 80%; group B, TCA 35%) once per week until complete clearance of the lesions or for a maximum duration of six weeks. Seven patients were excluded from the final analysis (one patient in group A and six patients in group B) for various reasons, including irregular follow-up, using physical tools such as razor blades to remove the lesion, and failure to complete treatment; and 55 patients were included in the final analysis.
Results: Improvement to treatment responses was classified as: no change (no changes in the number of warts), mild (clearing of less than 25% of warts), moderate (clearing of 25% to 75% of warts), and good (clearing of more than 75% of warts). At the end of follow-up, the clinical improvement of group A (n=30) was: 10 patients (33.3%) with a mild response, 6 patients (20%) with a moderate response, and 14 patients (46.7%) with a good response. In group B (n=25), 16 patients (64%) showed a mild response, 6 patients (24%) a moderate response, and 3 patients (12%) a good response. There was a statistically significant difference in improvement between the two treatment groups (P=.017). Improvement was greater with a higher concentration of TCA solution.
Conclusion: This study showed that a different concentration of TCA solution was an effective form of treatment for common warts. Trichloroacetic acid 80% is more effective, but this solution must be used only with careful consideration by a physician.
J Drugs Dermatol. 2012;11(11)e66-e69.