Evidence obtained from randomized controlled trials （RCTs） has been generally accepted as the gold standard in the evaluation of clinical effectiveness. Readers need to understand the trial design, implement...Evidence obtained from randomized controlled trials （RCTs） has been generally accepted as the gold standard in the evaluation of clinical effectiveness. Readers need to understand the trial design, implementation, results, analysis and interpretation, so as to fully Jnderstand the results of RCTs. Thus, the investigators of RCTs have to report these items in a complete, accurate and clear manner. Since 1998, we have conducted several evaluations on the reporting quality of RCTs published in Chinese journals on traditional Chinese medicine （TCM） and results have shown that there is an urgent need for higher quality RCTs on TCM.展开更多
Traditional Chinese patent medicines (TCPMs) are widely used for treatment of chronic hepatitis B (CHB) in China. To estimate the overall effectiveness of TCPMs for CHB, we performed a systematic review of clinical re...Traditional Chinese patent medicines (TCPMs) are widely used for treatment of chronic hepatitis B (CHB) in China. To estimate the overall effectiveness of TCPMs for CHB, we performed a systematic review of clinical reports designed as randomized controlled trials (RCTs). One hundred and thirty-eight available RCTs and quasi-RCTs on 62 TCPMs, involving 16,393 patients, were included. The methodological quality of these trials was generally "poor". Few trials (6.52%) reported the methods of randomization correctly. Another common problem was the lack of allocation concealment, proper blinding, and the reporting of lost cases and dropouts. Forty-two trials (30.43%) on 27 TCPMs reported some anti-viral effect of TCPMs. Others reported beneficial aspects, including improvements of liver function (79.71% of the studies), liver fibrosis (29.99%), and CHB symptoms (92.75%). Forty-one articles (29.71%) reported mild adverse events with TCPMs but these occurred infrequently. In summary, the outcome of the report on currently registered TCPMs may be biased due to poor methodology. The data from these trials, therefore, is too weak to use in forming a recommendation for treatment of CHB. Nevertheless, five drugs (Dan Shen agents, Da Huang Zhe Chong pill/capsule, Shuang Hu Qing Gan granule, Fu Zheng Hua Yu granule and Cao Xian Yi Gan capsule) appear to be more effective than the other TCPMs.展开更多
In 2012,USA Food and Drug Administration（FDA） approved 39 new drugs,however,there are only two botanical drugs（one topical and one oral）approved by FDA since the publication of the FDA＇s industry guidelines for t...In 2012,USA Food and Drug Administration（FDA） approved 39 new drugs,however,there are only two botanical drugs（one topical and one oral）approved by FDA since the publication of the FDA＇s industry guidelines for the botanical drug product in June 2004.The approval shows the Western guideline can be used for herbal medicines,authors investigate current regulation on herbal medicine clinical research,identify challenges conducting clinical trials,and seek to produce some guidance for potential investigators and sponsors considering a clinical trial in this area.Key words were formulated for searching on Medline and FDA website to locate relevant regulations for clinical research in herbal medicines to understand current environment for herbal medicine usage and examine the barriers affecting herbal medicine in clinical trials.Authors critically explore case study of the 1st FDA approved botanical drugs,Veregen（sinecatechins）,green tea leaves extract,a topical cream for perianal and genital condyloma.In consideration of current regulation environment in USA,based on the findings and analysis through the literature review and Veregen case study,authors produce and propose a Checklist for New Drug Application of Herbal Medicines for potential investigators and sponsors considerina in a herbal medicine clinical trial.展开更多
文摘Evidence obtained from randomized controlled trials （RCTs） has been generally accepted as the gold standard in the evaluation of clinical effectiveness. Readers need to understand the trial design, implementation, results, analysis and interpretation, so as to fully Jnderstand the results of RCTs. Thus, the investigators of RCTs have to report these items in a complete, accurate and clear manner. Since 1998, we have conducted several evaluations on the reporting quality of RCTs published in Chinese journals on traditional Chinese medicine （TCM） and results have shown that there is an urgent need for higher quality RCTs on TCM.
基金supported by Hunan Natural Science Foundation (09JJ3065)
文摘Traditional Chinese patent medicines (TCPMs) are widely used for treatment of chronic hepatitis B (CHB) in China. To estimate the overall effectiveness of TCPMs for CHB, we performed a systematic review of clinical reports designed as randomized controlled trials (RCTs). One hundred and thirty-eight available RCTs and quasi-RCTs on 62 TCPMs, involving 16,393 patients, were included. The methodological quality of these trials was generally "poor". Few trials (6.52%) reported the methods of randomization correctly. Another common problem was the lack of allocation concealment, proper blinding, and the reporting of lost cases and dropouts. Forty-two trials (30.43%) on 27 TCPMs reported some anti-viral effect of TCPMs. Others reported beneficial aspects, including improvements of liver function (79.71% of the studies), liver fibrosis (29.99%), and CHB symptoms (92.75%). Forty-one articles (29.71%) reported mild adverse events with TCPMs but these occurred infrequently. In summary, the outcome of the report on currently registered TCPMs may be biased due to poor methodology. The data from these trials, therefore, is too weak to use in forming a recommendation for treatment of CHB. Nevertheless, five drugs (Dan Shen agents, Da Huang Zhe Chong pill/capsule, Shuang Hu Qing Gan granule, Fu Zheng Hua Yu granule and Cao Xian Yi Gan capsule) appear to be more effective than the other TCPMs.
文摘In 2012,USA Food and Drug Administration（FDA） approved 39 new drugs,however,there are only two botanical drugs（one topical and one oral）approved by FDA since the publication of the FDA＇s industry guidelines for the botanical drug product in June 2004.The approval shows the Western guideline can be used for herbal medicines,authors investigate current regulation on herbal medicine clinical research,identify challenges conducting clinical trials,and seek to produce some guidance for potential investigators and sponsors considering a clinical trial in this area.Key words were formulated for searching on Medline and FDA website to locate relevant regulations for clinical research in herbal medicines to understand current environment for herbal medicine usage and examine the barriers affecting herbal medicine in clinical trials.Authors critically explore case study of the 1st FDA approved botanical drugs,Veregen（sinecatechins）,green tea leaves extract,a topical cream for perianal and genital condyloma.In consideration of current regulation environment in USA,based on the findings and analysis through the literature review and Veregen case study,authors produce and propose a Checklist for New Drug Application of Herbal Medicines for potential investigators and sponsors considerina in a herbal medicine clinical trial.
