It’s been more than seven years in coming, but the U.S. FDA is at last making public at least some of the complete response letters (CRLs) it’s sent to drug and biologic sponsors to notify them of deficiencies in their approval applications.
Developing a therapy for an ultra-rare condition has its challenges, including finding enough patients for clinical enrollment and convincing regulatory authorities that limited data prove the candidate is safe and effective. For that reason, Stealth Biotherapeutics Inc. has faced numerous roadblocks getting its mitochondria-targeting elamipretide across the finish line for Barth syndrome, a condition that affects about 230 to 250 males worldwide, including fewer than 150 in the U.S.
GSK plc knew a good thing when it swooped in nearly three years ago to rescue Spero Therapeutics Inc.’s oral antibiotic from a complete response letter (CRL). New pivotal phase III study data showed tebipenem pivoxil hydrobromide (HBr) for complicated urinary tract infections (cUTI), including pyelonephritis, hit its primary endpoint.
Jiangsu Hengrui Pharmaceuticals Co. Ltd. is the latest mainland China pharmaceutical company to seek a capital raise on the Hong Kong stock exchange, winning clearance April 28 from the China Securities Regulatory Commission to float new H-shares.
Jiangsu Hengrui Pharmaceuticals Co. Ltd. is the latest mainland China pharmaceutical company to seek a capital raise on the Hong Kong stock exchange, winning clearance April 28 from the China Securities Regulatory Commission to float new H-shares.
Aldeyra Therapeutics Inc. is hoping that research already underway will satisfy the U.S. FDA, which delivered to the company another complete response letter (CRL) related to the NDA for reproxalap in dry eye disease (DED).
Milestone Pharmaceuticals Inc.’s heart rhythm-restoring calcium channel blocker for paroxysmal supraventricular tachycardia (PSVT) has yet another obstacle in its way.
Atara Biotherapeutics Inc. received a complete response letter (CRL) from the U.S. FDA for its lead product, Ebvallo (tabelecleucel), a breakthrough therapy for Epstein-Barr virus positive post-transplant lymphoproliferative disease that is already approved in the EU, the U.K. and Switzerland.
Tanvex Biopharma Inc. said its U.S. subsidiary, Tanvex Biopharma U.S.A. Inc., received an FDA complete response letter (CRL) on Jan. 3 for its TX-05 BLA, a biosimilar that references Roche AG’s Herceptin (trastuzumab). The CRL cites unnamed issues that need to be addressed by the downstream manufacturer of TX-05, which is a third-party service provider of Tanvex U.S. for its drug product.
Tanvex Biopharma Inc. said its U.S. subsidiary, Tanvex Biopharma U.S.A. Inc., received an FDA complete response letter (CRL) on Jan. 3 for its TX-05 BLA, a biosimilar that references Roche AG’s Herceptin (trastuzumab). The CRL cites unnamed issues that need to be addressed by the downstream manufacturer of TX-05, which is a third-party service provider of Tanvex U.S. for its drug product.
