Efficacy and safety assessment of traditional Chinese medicine for erectile dysfunction: A meta‐analysis and trial sequential analysis

Author:

Wu Haoran1,Gao Zezheng2,Dai Dan3,Liu Xing1,Fang Yini1,Chen Xuemei1,Wang Qi1

Affiliation:

1. National Institute of Traditional Chinese Medicine Constitution and Preventive Medicine Beijing University of Chinese Medicine Beijing China

2. Institute of Metabolic Diseases, Guanganmen Hospital China Academy of Chinese Medical Sciences Beijing China

3. Department of Dermatology, Guanganmen Hospital China Academy of Chinese Medical Sciences Beijing China

Abstract

AbstractBackgroundSeveral patients with erectile dysfunction do not accept or benefit from conventional therapy with phosphodiesterase type 5 inhibitors; thus, alternative and complementary therapies are in need. Traditional Chinese medicine has been treating erectile dysfunction in China, but its clinical value is inconclusive.ObjectiveTo systematically evaluate the efficacy and safety of traditional Chinese medicine in treating erectile dysfunction.MethodsRandomized controlled trials were retrieved from a comprehensive search in the literature published in the past decade from the Web of Science, PubMed, Embase, Cochrane Library, SinoMed, China National Knowledge Internet, WanFang, and VIP. We performed a meta‐analysis of the International Index of Erectile Function 5 questionnaire scores, clinical recovery rates, and testosterone levels using Review Manager 5.4 software. The trial sequential analysis was conducted to check the results.ResultsA total of 45 trials with 5016 patients were included. Meta‐analysis results showed that traditional Chinese medicine effectively improved the International Index of Erectile Function 5 questionnaire scores (weighted mean difference = 3.78, 95% confidence interval: 3.12, 4.44; p < 0.001), clinical recovery rates (risk ratio = 1.57, 95% confidence interval: 1.38, 1.79; p < 0.001), testosterone levels (weighted mean difference = 2.42, 95% confidence interval: 1.59, 3.25; p < 0.001) compared with the controls. The single and add‐on applications of traditional Chinese medicine could improve the International Index of Erectile Function 5 questionnaire score (p < 0.001). The trial sequential analysis confirmed the robustness of the analysis of the International Index of Erectile Function 5 questionnaire scores. A significant difference in the incidence of adverse effects between the treatment and control groups was not observed (risk ratio = 0.82, 95% confidence interval: 0.65, 1.05; p = 0.12).ConclusionTraditional Chinese medicine can gain better responses in improving the International Index of Erectile Function 5 questionnaire scores, clinical recovery rates, and testosterone levels as an alternative and complementary treatment, with no increase in side effects. However, more standardized, long‐term, traditional Chinese medicine and integrative therapy clinical trials are needed to support the clinical application of traditional Chinese medicine.

Funder

National Social Science Fund of China

Publisher

Wiley

Subject

Urology,Endocrinology,Reproductive Medicine,Endocrinology, Diabetes and Metabolism

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