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Tuberculosis is one of the major infectious diseases in developing countries, and the length of time for which the chain of transmission is maintained has been implicated as a major factor in the perpetuation of the disease. In this context, regulatory agencies in such countries have approved new diagnostic tools, which have been almost immediately incorporated into the national tuberculosis control programs. Health interventions have been increasingly investigated in clinical trials, including explanatory trials (in order to evaluate the beneficial effects of such interventions) and pragmatic trials (in order to aid in the decision-making process). We argue that the evaluation of new diagnostic techniques for the detection of tuberculosis should not escape this same logic of evaluation.

Avaliação da utilidade clínica de novos testes diagnósticos em tuberculose: o papel dos ensaios clínicos pragmáticos