(a)Definitions. The definitions in § 314.3 and the following definitions of terms apply to this section: Approved under section 505(b) means an NDA submitted under section 505(b) and approved on or after October 10, 1962, or an application that was "deemed approved" under section 107(c)(2) of Public Law 87-781 . Bioavailability study means a study to determine the bioavailability or the pharmacokinetics of a drug. Clinical investigation means any experiment other than a bioavailability study in which
FDA may grant marketing approval for a new drug product on the basis of adequate and well-controlled clinical trials establishing that the drug product has an effect on a surrogate endpoint that is reasonably likely, based on epidemiologic, therapeutic, pathophysiologic, or other evidence, to predict clinical benefit or on the basis of an effect on a clinical endpoint other than survival or irreversible morbidity. Approval under this section will be subject to the requirement that the applicant study