Clinical Characteristics and Methodological Quality of Randomized Controlled Trials on Chinese Herbal Preparations for Ulcerative Colitis: A Systematic Evaluation
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Clinical Characteristics and Methodological Quality of Randomized Controlled Trials on Chinese Herbal Preparations for Ulcerative Colitis: A Systematic Evaluation
Journal of Traditional Chinese MedicineVol. 62, Issue 20, Pages: 1780-1787(2021)
SUN Yuxin,WANG Xiao,HOU Wenbin,et al.Clinical Characteristics and Methodological Quality of Randomized Controlled Trials on Chinese Herbal Preparations for Ulcerative Colitis: A Systematic Evaluation[J].Journal of Traditional Chinese Medicine,2021,62(20):1780-1787.
SUN Yuxin,WANG Xiao,HOU Wenbin,et al.Clinical Characteristics and Methodological Quality of Randomized Controlled Trials on Chinese Herbal Preparations for Ulcerative Colitis: A Systematic Evaluation[J].Journal of Traditional Chinese Medicine,2021,62(20):1780-1787.DOI: 10.13288/j.11-2166/r.2021.20.007.
Clinical Characteristics and Methodological Quality of Randomized Controlled Trials on Chinese Herbal Preparations for Ulcerative Colitis: A Systematic Evaluation
To systematically analyze and assess the clinical characteristics and methodological quality of randomized controlled trials (RCTs) on Chinese herbal preparations for ulcerative colitis (UC), to provide references for further meta-analysis as well as the construction of core outcome set in UC clinical trials.
Methods
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Electronic databases including CNKI, VIP, Wanfang, SinoMed, PubMed and Cochrane Library were searched from the inception dates to June 6, 2020 for RCTs on Chinese herbal preparations for UC. After the data was extracted, the clinical characteristics was analyzed, and the methodological quality was assessed.
Results
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A total of 11 527 papers were retrieved, and finally 406 papers on Chinese herbal preparations for UC were included, involving 35 485 patients. Most RCTs were single-center clinical trials (332/406, 81.8%); 35.5% trials (144/406) reported the randomization method, and 4.9% trials (20/406) implemented blinding. There were 261 kinds of interventions involved, which included 21 Chinese patent medicin; and more than 10 RCTs were found on three herbal prescriptions. Decoction was the most common form; oral administration, enema administration or a combination of both were mostly common seen. Only one RCT was available for 82.0% (214/261) interventions. The comprehensive clinical effectiveness was the most concerned outcome indicator.
Conclusion
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In RCTs for Chinese herbal preparations for treatment of UC, most intevention showed insufficient evidence. More attention should be payed to the management of patients in remission period, as well as the report of outcome indicators related to health economics, quality of life and safety.
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