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BioWorld - Tuesday, April 14, 2026
Home » complete response letters

Articles Tagged with ''complete response letters''

U.S. FDA headquarters

US FDA issues CRLs to Reata, Amryt and GC Pharma

March 1, 2022
By Lee Landenberger

Despite Reata Pharmaceuticals Inc.’s complete response letter (CRL) for bardoxolone in treating kidney function loss in those with Alport syndrome, the street treated the company well on Feb. 28. 


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U.S. FDA headquarters

US FDA issues CRLs to Reata, Amryt and GC Pharma

Feb. 28, 2022
By Lee Landenberger

Despite Reata Pharmaceuticals Inc.’s complete response letter (CRL) for bardoxolone in treating kidney function loss in those with Alport syndrome, the street treated the company well on Feb. 28. The stock (NASDAQ:RETA) rose 25.3% as the company decides how it wants to handle the CRL.


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Opko and Pfizer tagged with a CRL for somatrogon

Jan. 24, 2022
By Lee Landenberger
Despite success in other parts of the world, Opko Health Inc. and Pfizer Inc. are still struggling to gain U.S. FDA approval for the recombinant human growth hormone somatrogon in treating pediatric patients, drawing a complete response letter (CRL) with their BLA. The delay caused by the setback gives Skytrofa (lonapegsomatropin) from Ascendis Pharma A/S a chance to charge even further ahead in the pediatric market.
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Woman coughing

FDA rejects Merck cough drug NDA, briefly weighing on Bellus

Jan. 24, 2022
By Richard Staines
Merck & Co Inc. has had a setback with its chronic cough drug gefapixant after the FDA rejected its NDA, a decision that also briefly hit the share price of rival Bellus Health Inc. before it regained market traction late Jan. 24. The FDA had been reviewing gefapixant since March 2021, but the regulator is now asking for additional information related to measurement of efficacy in a dreaded complete response letter. Merck said the response was not related to the safety of gefapixant, a P2X3 receptor antagonist, under development for treatment of refractory chronic cough (RCC) or unexplained chronic cough in adults. Shares in Merck (NYSE:MRK) ticked down 1.4% to $78.86 while Bellus Health shares (NASDAQ:BLU) rose by 1.8% to $5.66.
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Stock chart with falling red arrow

Beyondspring’s CRL rattles its shares

Dec. 7, 2021
By Lee Landenberger
Beyondspring Pharmaceuticals Inc. said it received a complete response letter from the FDA regarding the NDA for plinabulin, the company’s lead asset. The FDA said results of a phase III registrational trial were strong enough to show benefit but a second trial is needed to satisfy the agency.
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Stock chart with falling red arrow

Beyondspring’s CRL rattles its shares

Dec. 1, 2021
By Lee Landenberger
Beyondspring Pharmaceuticals Inc. said it received a complete response letter from the FDA regarding the NDA for plinabulin, the company’s lead asset. The FDA said results of a phase III registrational trial were strong enough to show benefit but a second trial is needed to satisfy the agency.
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Fennec’s CRL: A familiar problem reappears

Nov. 30, 2021
By Lee Landenberger
Fennec Inc. received the complete response letter (CRL) it had expected from the FDA, sidelining U.S. development of Pedmark, a formulation of sodium thiosulfate for preventing ototoxicity associated with cisplatin chemotherapy in pediatric patients older than 1 month to those 18 years of age with localized, non-metastatic, solid tumors.
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Omeros ‘confident in data’ post-CRL, type A session ahead

Oct. 18, 2021
By Randy Osborne
Omeros Corp.’s complete response letter (CRL) from the FDA regarding its BLA for narsoplimab did not come as much of a surprise to Wall Street, but still was enough to drive shares (NASDAQ:OMER) down 26.6% to close Oct. 18 at $5.67, a loss of  $2.06.
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Medici drug delivery system

No happy ending for once-charmed biotech unicorn

Sep. 29, 2021
By Mari Serebrov
Once upon a time, Intarcia Therapeutics Inc. was a biotech unicorn valued at $3.5 billion. Its allure was its implantable Medici drug delivery system that consisted of a mini pump about the size of a matchstick. But a unicorn’s life is never completely charmed. Intarcia faced obstacles along the way – two complete response letters from the U.S. FDA and the denials of three formal dispute resolution requests. Now it looks like this story won’t have a happy ending.
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Sesen hit with surprise FDA CRL for Vicineum in NMIBC

Aug. 13, 2021
By Jennifer Boggs
An unexpected complete response letter (CRL) from the FDA has thrown a wrench into Sesen Bio Inc.’s commercial launch plans for Vicineum (oportuzumab monatox) in high-risk BCG-unresponsive non-muscle invasive bladder cancer (NMIBC). The company, which has spent the past few months completing its commercial build phase and hiring sales reps ahead of the Aug. 18 PDUFA date, instead must now address outstanding clinical and statistical data and analyses, in addition to CMC issues, cited in the CRL.
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