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Sameness Evaluations in an ANDA — Active Ingredients

DraftCenter for Drug Evaluation and Research,Office of Generic Drugs11/08/2022

Description

This guidance is intended to assist applicants preparing an abbreviated new drug application (ANDA) by providing recommendations on demonstrating sameness between the active ingredient in a proposed generic drug product and its reference listed drug (RLD) as required under section 505(j)(2)(A)(ii) of the Federal Food, Drug, and Cosmetic Act (FD&C Act) (21 U.S.C. 355(j)(2)(A)(ii)) and FDA’s regulations in § 314.94(a)(5) (21 CFR 314.94(a)(5)).

Scope & Applicability

Product Classes

6
Generic Drug

Subject of GDUFA and related meeting processes.

Reference Listed Drug

The drug product identified by the applicant for comparison; Comparison of ANDA product to RLD for pH adjuster differences

RLD

Reference Listed Drug used as the basis for an ANDA submission.

Fixed-combination drug products

Products requiring demonstration of component contribution per regulations

Synthetic Peptides

Amino acid polymers composed of 40 or fewer amino acids

Complex Mixtures

Naturally derived, synthetic, or semi-synthetic mixtures with multiple components

Regulatory Context

Attributes

3
Polymorphs

Different crystalline forms of the same active ingredient

Active ingredient sameness

The core requirement for ANDA approval relative to the RLD

Co-crystals

Crystalline materials composed of two or more different molecules

Related CFR Sections (7)

See Also (8)