Postmarket studies required by the US Food and Drug Administration for new drugs and biologics approved between 2009 and 2012: cross sectional analysis
Wallach JD, Egilman AC, Dhruva SS, McCarthy ME, Miller JE, Woloshin S, Schwartz LM, Ross JS. Postmarket studies required by the US Food and Drug Administration for new drugs and biologics approved between 2009 and 2012: cross sectional analysis. The BMJ 2018, 361: k2031. PMID: 29794072, PMCID: PMC5967364, DOI: 10.1136/bmj.k2031.Peer-Reviewed Original ResearchConceptsProspective cohort studyCohort studyClinical trialsPostmarketing requirementsTimeliness of registrationNew drugsUS FoodDrug AdministrationFDA approvalStudy designNumber of patientsSectional analysisPostmarket studiesFirst approvalRegistrySecondary analysisTrialsBiologicsDrugsComparator typeAdministrationApprovalFDAFDA's authority