The FDA amended emergency use authorizations (EUAs) for the Moderna Inc. COVID-19 vaccine as well as the shot from Pfizer Inc. and Biontech SE. A single booster dose was green-lighted for people 18 years and older at least six months after finishing the primary regimen with either of the vaccines, or at least two months after getting the Johnson & Johnson shot. 

The U.S. NIH said it will go to court if necessary to defend its role in developing Moderna Inc.’s COVID-19 vaccine. NIH spokeswoman Renate Myles told BioWorld that the agency “is not giving up on our claim that NIH is a co-inventor on the mRNA technology used in the Moderna’s COVID-19 vaccine but defers to legal authorities on how this might be resolved.”

New positive phase III study results for Regeneron Pharmaceuticals Inc.’s COVID-19 monoclonal antibody cocktail show a single dose reduced the risk of contracting the virus by 81.6% during a two- to eight-month follow-up period. The strong data go along with Pfizer Inc.’s recent positive results for its oral antiviral, Paxlovid, hinting that COVID-19 therapeutics could begin cutting into powerful mRNA vaccine margins from Pfizer Inc.-Biontech SE and Moderna Inc.  

The FDA’s Vaccines and Related Biological Products Advisory Committee (VRBPAC) voted 17-0, with one abstention, that the benefits of Pfizer Inc.-Biontech SE pediatric formulation of its two-dose COVID-19 vaccine outweigh its risks for children ages 5 through 11. Many of those votes came with caveats, as the VRBPAC members struggled with the unknowns of the vaccine and the fear that schools would mandate its use, even though it would still be considered experimental if the FDA grants it an emergency use authorization.

Pfizer Inc. said that, in children aged 5 through 11, the COVID-19 vaccine it co-developed with Biontech SE showed 90.7% efficacy against all variants of concern following two doses. The data were included in briefing documents filed ahead of a full discussion at the FDA’s Vaccines and Related Biological Products advisory committee meeting set for Oct. 26.

Despite some concerns from a few members, the Advisory Committee on Immunization Practices unanimously approved recommendations to the CDC that boosters be made available to those wanting them. The advisory committee recommended that a single COVID-19 vaccine booster dose be given six months or more after completing an mRNA primary series in the same risk group for whom the CDC recommended a booster dose of Pfizer Inc-Biontech SA’s vaccine. The CDC presented data to the committee that the single mRNA COVID-19 vaccine dose be given to those age 65 and older, for those at least 18 years old and reside in long-term-care settings, and also for those ages 50 to 60 with certain underlying medical conditions.

As largely expected, the FDA on Oct. 20 authorized the use of booster doses for COVID-19 vaccines from Moderna Inc. and Johnson & Johnson, in line with last week’s Vaccines and Related Biological Products Advisory Committee (VRBPAC) meetings. It also cleared the way for “mix-and-match” boosters, allowing eligible people to receive boosters from any of the FDA-approved vaccines, regardless of which vaccine they received originally.

LONDON – Valneva SA’s COVID-19 vaccine, VLA-2001, prompted a stronger immune response with fewer side effects than Astrazeneca plc’s product, according to headline data from the phase III trial. Shares in Valneva (NASDAQ:VALN) shot up by nearly 40% to close Oct. 18 at $39.21 when the data were announced, partly repairing the damage on Sept. 13 when the U.K. government cancelled a $1.65 billion contract with the French vaccines specialist for 100 million doses.