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‘Dangling’ Accelerated Approvals: US FDA Flags Concerns About ‘Marginal’ Response Rates

 
• By Sue Sutter

Failed confirmatory trials for PD-1/L-1 inhibitor indications raise questions about marginal response rates in single-arm trials used to support accelerated approval, Oncology Center of Excellence leaders say in NEJM article that explains why the agency is taking six of these indications to its Oncologic Drugs Advisory Committee.

Dangling mugs
US FDA's Oncology Center of Excellence has coined the term "dangling accelerated approvals" when confirmatory trials fail to verify clinical benefit but indications remain on the label. • Source: Shutterstock

Checkpoint inhibitor indications approved on the basis of marginal response rates in single-arm trials are a key focus of the US Food and Drug Administration’s class-wide evaluation of whether accelerated approvals should remain intact despite the failure of confirmatory trials.

In a New England Journal of Medicine article published online 21 April, Oncology Center of Excellence chief of medical oncology...

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More from US FDA Performance Tracker

US FDA’s June Approval Forecast: Infection Prevention, Cancer And HAE

 
• By Bridget Silverman

Upcoming FDA user fee goal dates include novel products from a busy lung cancer pipeline, a single-dose passive immunization against RSV for infants, what could be the first oral HAE acute treatment, and a first-in-class HAE preventive antibody.

Keep Talking: US FDA’s Beleaguered Biologics Center Remains Vital To Regenerative Medicine

 
• By Bridget Silverman

Advisory committee for Capricor’s deriamocel planned, regenerative medicine advanced therapy designations proliferate for osteoarthritis, and the ranks of dual RMAT/breakthrough therapy designation holders grow.

Maybe In May: US FDA Calls Coming On Moderna Next-Gen COVID-19 Vaccine, AbbVie’s Big ADC Bet

 
• By Bridget Silverman

The 31 May goal date for Moderna’s next-generation COVID-19 vaccine looms over the month, but the US FDA's decision lineup includes three more novel agents, including AbbVie's Teliso-V antibody-drug conjugate, as well as supplemental indications like GSK's bid for Nucala in COPD.

AMR-Targeting Drug Secures EMA PRIME Designation

 
• By Neena Brizmohun

Antabio’s next-generation, broad-spectrum antibacterial, MEM-ANT3310, has made it onto the European Medicines Agency’s priority medicines scheme. The company says its product is designed to make a significant impact on the growing problem of antimicrobial resistance.

More from Regulatory Trackers

Global Pharma Guidance Tracker - April 2025

 
• By Vibha Sharma and Anabel Costa-Ferreira

Stay up to date on regulatory guidelines from around the world with the Pink Sheet’s Guidance Tracker. The complete Global Pharma Guidance Tracker, with sortable and searchable listings going back to 2014, is available online.

Keep Talking: US FDA’s Beleaguered Biologics Center Remains Vital To Regenerative Medicine

 
• By Bridget Silverman

Advisory committee for Capricor’s deriamocel planned, regenerative medicine advanced therapy designations proliferate for osteoarthritis, and the ranks of dual RMAT/breakthrough therapy designation holders grow.

Maybe In May: US FDA Calls Coming On Moderna Next-Gen COVID-19 Vaccine, AbbVie’s Big ADC Bet

 
• By Bridget Silverman

The 31 May goal date for Moderna’s next-generation COVID-19 vaccine looms over the month, but the US FDA's decision lineup includes three more novel agents, including AbbVie's Teliso-V antibody-drug conjugate, as well as supplemental indications like GSK's bid for Nucala in COPD.