NEGRET HERNANDEZ, Marisel et al. Quality in the design of the clinical trial in Natural and Traditional Medicine. []. , 34, 3, pp. 354-361. ISSN 1684-1824.

ABSTRACT The Natural and Traditional Medicine has entered a new stage of development with the striking increase of the therapeutic alternatives demand. One of its limitations is the scarcity of researches, done applying the scientific method to acquire and evaluate the obtained results or the incorrect design of the research, mainly in those including the evaluation of agents, therapeutic procedures or diagnosis of Natural and Traditional Medicine, through clinical trials. With the objective of assessing the quality of the   methodological design of the clinical trials of Natural and Traditional Medicine we carried out a cross-sectional, descriptive research to evaluate the clinical trials protocols of the Master´s defenders and residents of this specialty, from July to November 2011. We analyzed in total 36 protocols of clinical trials. The main problems detected were: 41,7 % of the trials did not add relevant information; 80,5 % had problems in the design; in 22,2 % of them there was a lack of previous clinical information justifying the beginning of the trial, and 16, 7 %  did not fulfilled the ethical aspects of a clinical trial.

: clinica trial; investigation; Natural Traditional Medicine; quality of the methodologic design.

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