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COVID-19 Vaccines: Placebo Crossover May Depend Upon Number Of Doses, Allocation Strategy

 
• By Sue Sutter

Although US FDA wants sponsors to maintain blinded Phase III follow-up as long as possible after emergency use authorization or licensure, vaccine researcher Larry Corey says it will become ‘untenable’ to keep individuals in placebo arm once they qualify for vaccine access under the allocation framework.  

Editorial use only - ARCADIA, CA - MAR 20: Horses break from the gate in an allowance race at Santa Anita Park on Mar 20, 2010 in Arcadia, CA
Once the first COVID-19 vaccines out of the gate become available, clinical trials of earlier-stage candidates might look different. • Source: Shutterstock

The timing of when individual placebo patients in randomized Phase III trials of COVID-19 vaccines should be allowed access to those vaccines once authorized or licensed by the US Food and Drug Administration may depend upon the number of doses available and the populations prioritized for initial distribution.

Larry Corey, a virologist at Fred Hutchinson Cancer Research Center and co-leader of the COVID-19 Prevention Network’s vaccine testing program, said he expects that by February or March, “a...

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More from US FDA Performance Tracker

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.

US FDA’s Review Performance Held Steady Despite Stormy First Quarter

 
• By Bridget Silverman

Organizational turmoil has not yet affected reviews of novel agent applications, with Q1 2025 approvals coming in low, but the first quarter share of the entire year is variable.

More from Regulatory Trackers

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.

EU CHMP Opinions And MAA Updates

 
• By Neena Brizmohun

This is an update of recommendations from the European Medicines Agency's Committee for Medicinal Products for Human Use on the authorization of new medicines in the EU, and updates on EU marketing authorization changes recommended by the CHMP.

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.