Demonstrating Bioequivalence for Type A Medicated Articles Containing Active Pharmaceutical Ingredient(s) Considered To Be Poorly Soluble in Aqueous Media, That Exhibit Little to No Systemic Bioavailability, and Are Locally Acting; Guidance for Industry; Availability

The Food and Drug Administration (FDA or Agency) is announcing the availability of a final guidance for industry (GFI) #279 entitled "Demonstrating Bioequivalence for Type A Medicated Articles Containing Active Pharmaceutical Ingredient(s) Considered to be Poorly Soluble in Aqueous Media, That Exhibit Little to No Systemic Bioavailability, and Are Locally Acting." This final guidance describes an approach to satisfy the requirements for the completion of the Bioequivalence technical section for generic Type A medicated articles (TAMAs) containing poorly soluble, locally acting, active pharmaceutical ingredients (APIs) that have little to no systemic absorption, and for which blood level studies are not considered appropriate to demonstrate product bioequivalence. The suggested approach described in this guidance uses a combination of in vitro and in vivo data to support a determination of bioequivalence to address the unique challenges associated with demonstrating bioequivalence of TAMAs containing poorly soluble, locally acting APIs that have little to no systemic absorption.

Abstract as published in the Federal Register.

The complete document — every provision, the docket, and the comment instructions — is published in the Federal Register. SPEQ surfaces and indexes it for reference; the authoritative text lives on federalregister.gov.