Abstract Title:

Efficacy, safety and tolerability of green tea catechins in the treatment of external anogenital warts: a systematic review and meta-analysis.

Abstract Source:

Arterioscler Thromb Vasc Biol. 2006 Jan;26(1):85-90. Epub 2005 Oct 20. PMID: 21294779

Abstract Author(s):

T G Tzellos, C Sardeli, A Lallas, G Papazisis, M Chourdakis, D Kouvelas

Article Affiliation:

Department of Pharmacology&Clinical Pharmacology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki Hospital of Venereal&Skin Diseases of Thessaloniki, Thessaloniki, Greece.


Background  External anogenital warts (EGWs) are non-malignant skin tumours caused by human papillomavirus. They are one of the fastest growing sexually transmitted diseases. Current treatments are unsatisfactory. Green tea sinecatechin Polyphenon E ointment is a botanical extract from green tea leaves exhibiting anti-oxidant, anti-viral and anti-tumour properties. Objective  The aim of this study was to integrate valid information and provide basis for rational decision making regarding efficacy and safety of green tea extracts in the treatment of EGWs. Methods  A systematic search in electronicdatabases was conducted using specific key terms. Main search was performed independently by two reviewers. The accumulated relevant literature was subsequently systematically reviewed and a meta-analysis was conducted. Results  Three randomized, double-blind, placebo-controlled studies evaluatingefficacy and safety of Polyphenon E 15% and 10% in the treatment of warts were included in the systematic review and meta-analysis. A total of 660 men and 587 women were enrolled. Regarding primary outcome, both Polyphenon E 15% and 10% demonstrated significantly higher likelihood of complete clearance of baseline and baseline and new warts compared with controls. No significant heterogeneity was detected. Recurrence rates were very low. Commonest local skin sign was erythema and local skin symptom was itching. Conclusions  Efficacy of Polyphenon 15% and 10%, at least for the primary endpoint, is clearly indicated. Polyphenon E treatment exhibits very low recurrence rates and appears to have a rather favourable safety and tolerability profile. Recommendations for future studies should include evaluation of the efficacy of green tea catechins in the treatment of internal anogenital warts and direct comparison with its principal comparator, imiquimod.

Study Type : Human Study

Print Options

Sayer Ji
Founder of GreenMedInfo.com

Subscribe to our informative Newsletter & receive The Dark Side of Wheat Ebook

Our newsletter serves 500,000 with essential news, research & healthy tips, daily.

Download Now

The Dark Side of Wheat

This website is for information purposes only. By providing the information contained herein we are not diagnosing, treating, curing, mitigating, or preventing any type of disease or medical condition. Before beginning any type of natural, integrative or conventional treatment regimen, it is advisable to seek the advice of a licensed healthcare professional.

© Copyright 2008-2023 GreenMedInfo.com, Journal Articles copyright of original owners, MeSH copyright NLM.