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Although you can comment on any guidance at any time (see 21 CFR 10.115(g)(5)), to ensure that the FDA considers your comment on a draft guidance before it begins work on the final version of the guidance, submit either online or written comments on the draft guidance before the close date.
If unable to submit comments online, please mail written comments to:
Food and Drug Administration
5630 Fishers Lane, Rm 1061
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All written comments should be identified with this document's docket number: FDA-2020-D-1480
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Guidance Issuing OfficeCenter for Biologics Evaluation and ResearchCenter for Drug Evaluation and Research
The purpose of this guidance is to help sponsors of investigational new drug applications (INDs) and applicants of biologic license applications (BLAs) determine the need for drug-drug interaction (DDI) studies for a therapeutic protein (TP) by providing a systematic, risk-based approach.
For the purpose of this guidance, a TP refers to a protein, licensed as a therapeutic biological product under section 351 of the Public Health Service Act (42 U.S.C. 262). , Although this guidance applies to therapeutic proteins, the general concepts could be applicable to other biological products, including biological products regulated by CBER such as cellular and gene therapies.