Drug development is an expensive process that is marked by a high-failure rate. For this reason early stage bioequivalence and pharmacokinetic studies are essential in determining the fate of new drug products. In this study, we sought to systematically assess the current trends of ongoing and recently completed bioequivalence and bioavailability trials that have been registered within a national clinical trials registry. All bioequivalence and bioavailability studies registered in the United States ClinicalTrials.gov registry from late-2007 through 2011 were identified.
Stockmann C, Spigarelli MG, Ampofo K, Sherwin CMT (2013) Bioequivalence and Bioavailability Clinical Trials: A Status Report from the National Institutes of Health ClinicalTrials.gov Registry. J Bioequiv Availab 5:244-247