FDA May Nix The "Not Approvable" Letter

Under a new proposal, the Food & Drug Administration may stop issuing "approvable" and "not approvable" letters to drug sponsors whose applications need to be revised or amended. Instead, companies would receive a "complete response" letter similar to those already used by the FDA for biologics. Using the same name for all the letters should help clear up some of the confusion that can be caused by the current system, according to John K. Jenkins, who heads the Office of New Drugs in the FDA

Written byKate Fodor
| 1 min read

Register for free to listen to this article
Listen with Speechify
0:00
1:00
Share

Under a new proposal, the Food & Drug Administration may stop issuing "approvable" and "not approvable" letters to drug sponsors whose applications need to be revised or amended. Instead, companies would receive a "complete response" letter similar to those already used by the FDA for biologics. Using the same name for all the letters should help clear up some of the confusion that can be caused by the current system, according to John K. Jenkins, who heads the Office of New Drugs in the FDA's Center for Drug Evaluation and Research (CDER).

Both "approvable" and "not approvable" products are eligible to be cleared for marketing once application deficiencies have been corrected, so the decision about which type of letter to issue is "somewhat subjective" and "can lead to confusion among sponsors and the public about potential outcomes for the application," Jenkins says. The change could help eliminate the "not-approvable" stigma, ...

Interested in reading more?

Become a Member of

The Scientist Logo
Receive full access to digital editions of The Scientist, as well as TS Digest, feature stories, more than 35 years of archives, and much more!
Already a member? Login Here

Meet the Author

Published In

Share
December digest cover image of a wooden sculpture comprised of multiple wooden neurons that form a seahorse.
December 2025, Issue 1

Wooden Neurons: An Artistic Vision of the Brain

A neurobiologist, who loves the morphology of cells, turns these shapes into works of art made from wood.

View this Issue
Stacks of cell culture dishes, plates, and flasks with pink cell culture medium on a white background.

Driving Innovation with Cell Culture Essentials

Merck
Stacks of cell culture dishes, plates, and flasks with pink cell culture medium on a white background.

Driving Innovation with Cell Culture Essentials

MilliporeSigma purple logo
Abstract wireframe sphere with colorful dots and connecting lines representing the complex cellular and molecular interactions within the tumor microenvironment.

Exploring the Inflammatory Tumor Microenvironment 

Cellecta logo
An image of a DNA sequencing spectrum with a radial blur filter applied.

A Comprehensive Guide to Next-Generation Sequencing

Integra Logo

Products

brandtech logo

BRANDTECH® Scientific Announces Strategic Partnership with Copia Scientific to Strengthen Sales and Service of the BRAND® Liquid Handling Station (LHS) 

Top Innovations 2026 Contest Image

Enter Our 2026 Top Innovations Contest

Biotium Logo

Biotium Expands Tyramide Signal Amplification Portfolio with Brighter and More Stable Dyes for Enhanced Spatial Imaging

Labvantage Logo

LabVantage Solutions Awarded $22.3 Million U.S Customs and Border Protection Contract to Deliver Next-Generation Forensic LIMS