21 CFR Part 320 · Bioavailability and Bioequivalence Requirements

§ 320.28 Correlation of bioavailability with an acute pharmacological effect or clinical evidence

Subpart B - Procedures for Determining the Bioavailability or Bioequivalence of Drug Products Official text on eCFR Amendment history

Correlation of in vivo bioavailability data with an acute pharmacological effect or clinical evidence of safety and effectiveness may be required if needed to establish the clinical significance of a special claim, e.g., in the case of an extended release preparation.

Independent copy, not an official legal edition. 21 CFR is a U.S. Government work in the public domain; this text comes from the eCFR and the annual CFR edition, and may lag recent amendments. The authoritative version is on ecfr.gov. Compliome is not affiliated with or endorsed by FDA. Not legal advice.

Amendment history

Federal Register documents that created or amended this section.