• Yan Zeng, Yu Li, Hua Wei, Chan Xiong, Li Liao, Ti-Wei Miao, Bing Mao, and Juan-Juan Fu.
• Department of Pneumology, Pidu District Hospital of Traditional Chinese Medicine, The Third Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Sichuan.
• Medicine (Baltimore). 2019 Jul 1; 98 (28): e16444.

BackgroundChronic obstructive pulmonary disease (COPD) is a common chronic respiratory disease with high morbidity and mortality placing heavy social and economic burden. As a kind of complementary therapy for the treatment of stable COPD, Chinese oral herbal paste has been widely used and studied. The study aims to evaluate the clinical efficacy and safety of herbal paste in the treatment of stable COPD, and to provide evidence for its clinical application.MethodsWe will electronically search databases, including Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science, EMBASE, PubMed, Chinese National Knowledge Infrastructure (CNKI), WANFANG Database, Chinese Scientific and Technological Periodical Database (VIP), and Chinese Biomedical Database (CBM), from respective inception to June 2019 to collect randomized controlled trials (RCTs) of Chinese oral herbal paste for the treatment of stable COPD. The websites of Chinese clinical trial registry and international clinical trial registry, the reference lists of the retrieved articles, conference proceedings, and gray literature will also be collected. The quality of life, symptom scores, and exacerbation frequency will be measured as primary outcomes. Secondary outcomes include scores of traditional Chinese medicine (TCM) syndrome, clinical effective rates according to criteria in TCM, changes in lung function, 6-minute walking distance, and safety analysis. The Cochrane bias risk assessment and the GRADE method will be used to assess the quality of the original studies included. Merging analysis of data will be performed using Rev Man 5.3 software.ResultsThe systematic review will provide an evidence on the clinical efficacy and safety of Chinese oral herbal paste for the treatment of stable COPD, and will be submitted for publication in a peer-reviewed journal.ConclusionThe study will confirm whether Chinese oral herbal paste is an effective and safe intervention for the prevention and treatment of stable COPD.

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