[Progress and challenges of clinical trials registration in Latin America and the Caribbean's].

Clinical trial registries are one of the main sources of information concerning health research interventions that have been or are being carried out throughout the world. The World Health Organization (WHO) established a minimum data set to be recorded (20 items), which was agreed upon internationally with the stakeholders, and established a network of primary and associated records. In addition to the register ClinicalTrial.Gov (of the United States of America), there are currently two primary registries in the Americas (from Brazil and Cuba) that meet WHO requirements and provide data to WHO's International Clinical Trials Registry Platform (ICTRP). Furthermore, there are important advances in the region related to the regulations, development and implementation of national registries and to the support of the ethics committees and editors to this initiative.

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