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Efficacy Assessment of a Topically Applied Nitric–Zinc Complex Solution for the Treatment of External Ano-genital Warts in 100 Patients

INTRODUCTION: External ano-genital warts (AGWs) due to human papilloma virus infection are the most common sexually transmitted ano-genital lesions of viral origin worldwide. Treatments include topical chemicals/drugs, excisional surgery, cryosurgery, electrosurgery and laser surgery. Nitric-zinc co...

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Autores principales: Ciccarese, Giulia, Drago, Francesco, Granger, Corinne, Parodi, Aurora
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Healthcare 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6522592/
https://www.ncbi.nlm.nih.gov/pubmed/31041663
http://dx.doi.org/10.1007/s13555-019-0300-7
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author Ciccarese, Giulia
Drago, Francesco
Granger, Corinne
Parodi, Aurora
author_facet Ciccarese, Giulia
Drago, Francesco
Granger, Corinne
Parodi, Aurora
author_sort Ciccarese, Giulia
collection PubMed
description INTRODUCTION: External ano-genital warts (AGWs) due to human papilloma virus infection are the most common sexually transmitted ano-genital lesions of viral origin worldwide. Treatments include topical chemicals/drugs, excisional surgery, cryosurgery, electrosurgery and laser surgery. Nitric-zinc complex (NZC) is a new topically applied solution containing nitric acid, zinc, copper and organic acids that induces a caustic effect on condyloma. The objective of this study was to investigate the efficacy and tolerability of NZC in the treatment of AGWs. METHODS: Patients attending for AGWs between September 2016 and February 2018 were retrospectively studied. They received at least one NZC application for a maximum of four treatments (V0, V1, V2, V3) with average intervals of 25 days between sessions. Recurrences were evaluated at 3 and 6 months after clearance. RESULTS: One hundred patients (70 males, 30 females) with a mean age of 36.39 years were studied. The total number of AGWs diagnosed at the baseline visit (V0) in all patients was 418 with a mean of 4.18 AGWs per patient. A wart cure rate of 92% was observed in ≤ 4 treatment sessions (383 lesions cured at visit 4, V4, out of 418 lesions at baseline), with a cure rate of 49% with only one NZC application. Complete clearance was observed in 25, 52, 72 and 84% of patients at V1, V2, V3 and V4, respectively. Relapses were observed in 29% of patients at 3 months and in 5% at 6 months. Of note, patients with ≤ 5 AGWs at V0 showed better clearance results than patients with > 5 lesions (p < 0.05). The treatment was well tolerated by most patients. CONCLUSION: NZC has been demonstrated to be effective for AGWs after 1–4 treatment sessions, obtaining a good response from the first application. The better response in patients with fewer warts suggests that the earlier diagnosis is made and treatment started, the better the expected results. FUNDING: ISDIN.
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spelling pubmed-65225922019-06-05 Efficacy Assessment of a Topically Applied Nitric–Zinc Complex Solution for the Treatment of External Ano-genital Warts in 100 Patients Ciccarese, Giulia Drago, Francesco Granger, Corinne Parodi, Aurora Dermatol Ther (Heidelb) Original Research INTRODUCTION: External ano-genital warts (AGWs) due to human papilloma virus infection are the most common sexually transmitted ano-genital lesions of viral origin worldwide. Treatments include topical chemicals/drugs, excisional surgery, cryosurgery, electrosurgery and laser surgery. Nitric-zinc complex (NZC) is a new topically applied solution containing nitric acid, zinc, copper and organic acids that induces a caustic effect on condyloma. The objective of this study was to investigate the efficacy and tolerability of NZC in the treatment of AGWs. METHODS: Patients attending for AGWs between September 2016 and February 2018 were retrospectively studied. They received at least one NZC application for a maximum of four treatments (V0, V1, V2, V3) with average intervals of 25 days between sessions. Recurrences were evaluated at 3 and 6 months after clearance. RESULTS: One hundred patients (70 males, 30 females) with a mean age of 36.39 years were studied. The total number of AGWs diagnosed at the baseline visit (V0) in all patients was 418 with a mean of 4.18 AGWs per patient. A wart cure rate of 92% was observed in ≤ 4 treatment sessions (383 lesions cured at visit 4, V4, out of 418 lesions at baseline), with a cure rate of 49% with only one NZC application. Complete clearance was observed in 25, 52, 72 and 84% of patients at V1, V2, V3 and V4, respectively. Relapses were observed in 29% of patients at 3 months and in 5% at 6 months. Of note, patients with ≤ 5 AGWs at V0 showed better clearance results than patients with > 5 lesions (p < 0.05). The treatment was well tolerated by most patients. CONCLUSION: NZC has been demonstrated to be effective for AGWs after 1–4 treatment sessions, obtaining a good response from the first application. The better response in patients with fewer warts suggests that the earlier diagnosis is made and treatment started, the better the expected results. FUNDING: ISDIN. Springer Healthcare 2019-04-30 /pmc/articles/PMC6522592/ /pubmed/31041663 http://dx.doi.org/10.1007/s13555-019-0300-7 Text en © The Author(s) 2019 https://creativecommons.org/licenses/by-nc/4.0/This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) ), which permits any noncommercial use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Original Research
Ciccarese, Giulia
Drago, Francesco
Granger, Corinne
Parodi, Aurora
Efficacy Assessment of a Topically Applied Nitric–Zinc Complex Solution for the Treatment of External Ano-genital Warts in 100 Patients
title Efficacy Assessment of a Topically Applied Nitric–Zinc Complex Solution for the Treatment of External Ano-genital Warts in 100 Patients
title_full Efficacy Assessment of a Topically Applied Nitric–Zinc Complex Solution for the Treatment of External Ano-genital Warts in 100 Patients
title_fullStr Efficacy Assessment of a Topically Applied Nitric–Zinc Complex Solution for the Treatment of External Ano-genital Warts in 100 Patients
title_full_unstemmed Efficacy Assessment of a Topically Applied Nitric–Zinc Complex Solution for the Treatment of External Ano-genital Warts in 100 Patients
title_short Efficacy Assessment of a Topically Applied Nitric–Zinc Complex Solution for the Treatment of External Ano-genital Warts in 100 Patients
title_sort efficacy assessment of a topically applied nitric–zinc complex solution for the treatment of external ano-genital warts in 100 patients
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6522592/
https://www.ncbi.nlm.nih.gov/pubmed/31041663
http://dx.doi.org/10.1007/s13555-019-0300-7
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