Data from: Terminated trials in the ClinicalTrials.gov results database: evaluation of availability of primary outcome data and reasons for termination

Rebecca J. Williams, Tony Tse, Katelyn DiPiazza & Deborah A. Zarin
Background: Clinical trials that end prematurely (or “terminate”) raise financial, ethical, and scientific concerns. The extent to which the results of such trials are disseminated and the reasons for termination have not been well characterized. Methods and Findings: A cross-sectional, descriptive study of terminated clinical trials posted on the ClinicalTrials.gov results database as of February 2013 was conducted. The main outcomes were to characterize the availability of primary outcome data on ClinicalTrials.gov and in the...
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