Despite law, fewer than one in eight completed studies of drugs and biologics are reported on time on


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Publication Topics

Despite law, fewer than one in eight completed studies of drugs and biologics are reported on time on

Publication TypeJournal Article
Year of Publication2011
AuthorsLaw M, Kawasumi Y, Morgan SG
JournalHealth Affairs
Pages2338 - 2345
Date Published2011
AbstractClinical trial registries are public databases created to prospectively document the methods and measures of prescription drug studies and retrospectively collect a summary of results. In 2007 the US government began requiring that researchers register certain studies and report the results on, a public database of federally and privately supported trials conducted in the United States and abroad. We found that although the mandate briefly increased trial registrations, 39 percent of trials were still registered late after the mandate's deadline, and only 12 percent of completed studies reported results within a year, as required by the mandate. This result is important because there is evidence of selective reporting even among registered trials. Furthermore, we found that trials funded by industry were more than three times as likely to report results than were trials funded by the National Institutes of Health. Thus, additional enforcement may be required to ensure disclosure of all trial results, leading to a better understanding of drug safety and efficacy. Congress should also reconsider the three-year delay in reporting results for products that have been approved by the Food and Drug Administration and are in use by patients.
Citation Key378