ClinicalTrials.gov

clinicaltrials.gov

Registro de estudos clínicos do mundo todo. As URLs de registros individuais de ensaios importam como fontes do tipo Site, com desenho do estudo, desfechos e resultados publicados.

Maintained by the US National Library of Medicine, this is the official registry of trial design, enrollment criteria, and posted results, which makes individual trial pages a way to check what a study did rather than rely on a news summary of it. Results reporting is required by law for many trials but still incomplete for others, especially older or foreign-registered ones, so absent results don't mean the trial didn't happen.