refuse to file letters

FDA snubs Zogenix's anti-seizure drug, not happy with some sloppy, inadequate R&D work
Endpoints
Mon, 04/8/19 - 11:21 pm
Zogenix
Dravet syndrome
FDA
refuse to file letters
Allergan hit with FDA refusal to file letter
BioPharma Dive
Mon, 09/25/17 - 07:26 pm
Allergan
FDA
refuse to file letters
Vraylar
Why The FDA Issues More Refuse To File Letters
Pharmalot
Mon, 04/25/11 - 09:38 am
FDA
RTF letters
refuse to file letters