The U.S. FDA’s Vaccines and Related Biological Products Advisory Committee (VRBPAC) voted unanimously to recommend COVID-19 vaccines for the 2023-2024 vaccination campaign be monovalent vaccines that target the XBB variants, currently the most prominent variants of the SARS-CoV-2 virus.
Efficacy data for Pfizer Inc.’s respiratory syncytial virus (RSV) vaccine proved convincing for members of the U.S. FDA’s Vaccines and Related Biological Products Advisory Committee, which voted 14-0 May 18 in favor of Abrysvo’s effectiveness when administered during the second or third trimester of pregnancy to protect infants from birth to 6 months, with the adcom endorsing safety data in a 10-4 vote.
The race to become the first microbiome-based therapy to reach the market continues between two companies. A positive view by the U.S. FDA’s Vaccines and Related Biological Products Advisory Committee on Sept. 22 for RBX-2660 in preventing recurrent Clostridium difficile infection kept Ferring Pharmaceuticals Inc.’s microbiota-based live biotherapeutic moving forward.
As expected, the FDA's Vaccines and Related Biological Products Advisory Committee voted near-unanimously on Dec. 17, with one abstention, that available evidence shows the benefits of Moderna Inc.'s COVID-19 vaccine, mRNA-1273, outweigh its risks for people 18 and older. The vote bolsters the likelihood that the regulator will grant the vaccine an emergency use authorization (EUA), which could come as soon as Friday. Not the same as an approval, the authorization would allow for the vaccine's use for the prevention of COVID-19 in the U.S. even as further trials and regulatory evaluation remains underway ahead of a company BLA submission.
With the lack of public trust and confidence the biggest barrier to SARS-CoV-2 vaccines in the U.S., the risk of granting an emergency use authorization to a vaccine with safety issues or questionable efficacy could destroy confidence in future FDA-approved products. That message was drummed home throughout the Oct. 22 meeting of the FDA’s Vaccines and Related Biological Products Advisory Committee.
While the FDA’s approach to evaluating safety and efficacy in the development and review of COVID-19 vaccines for the U.S. market will be at the center of its Oct. 22 advisory committee meeting, the panel also will be asked to discuss the practicalities, and ethics, of continuing to conduct trials once a candidate has been granted an emergency use authorization.