After a more than 13-year period of stability with Janet Woodcock as the head of CDER, with Patrizia Cavazzoni taking charge during the next four years of former U.S. President Joe Biden’s tenure, the FDA division has had no fewer than five different people in charge throughout 2025. Up to bat now as acting director is Tracy Beth Høeg, a physician and epidemiologist who co-authored a paper in 2022 with CBER Director Vinay Prasad, FDA Commissioner Marty Makary and others demonstrating that COVID-19 boosters and college vaccine mandates were harmful to young men due to myocarditis risks.
Individual liberty and choice vs. wider public health became one predictable hinge upon which swung the often-acerbic debates at the CDC’s Advisory Committee for Immunization Practices (ACIP) meeting, which took up – again – the matter of hepatitis B virus (HBV) vaccine scheduling, a day after the panel voted not to vote on such guidance.
Disorganization resulting from last-minute changes to voting questions involving new recommendations for hepatitis B virus vaccines created a moment of déjà vu Dec. 4 when the CDC’s Advisory Committee for Immunization Practices (ACIP) voted 6-3 to once again delay its votes on whether the current recommended birth dose should be pushed back.
On Dec. 2, 2025, the FDA released draft guidance that could reduce the use of nonhuman primates (NHPs) in preclinical testing of monoclonal antibodies. According to the guidance, which the FDA released for the purpose of soliciting comments, “In general, studies longer than 3 months in nonrodent species (e.g., NHPs, dogs, and mini-pigs) are not warranted to evaluate toxicities … when data from 3-month studies are supplemented with a weight-of-evidence (WoE) risk assessment.”
“Do not take us backwards,” many doctors and other stakeholders implored the CDC’s Advisory Committee for Immunization Practices ahead of its meeting that starts Dec. 4 with a day-long discussion and votes on whether the current recommended birth dose of the hepatitis B virus vaccine should be delayed.
So much for stability at the U.S. FDA. Three weeks after accepting the position as director of the FDA’s CDER, Richard Pazdur has informed the agency of his intention to retire at the end of the year.
The next stop on the comeback tour for the U.S. FDA’s Rare Pediatric Disease Priority Review Voucher program is the Senate, after the House unanimously passed the Mikaela Naylon Give Kids a Chance Act, H.R. 1262, Dec. 1.
U.S. Health and Human Services Secretary Robert Kennedy continued his last-minute musical chairs ahead of the Dec. 4-5 meeting of the Advisory Committee for Immunization Practices (ACIP) when he named Kirk Milhoan as the new chair of the panel that advises the CDC on vaccine schedules.
China’s National Medical Products Administration gave the nod to Innovent Biologics Inc.’s picankibart (IBI-112), branded as Pecondle, for treating moderate to severe plaque psoriasis in adults who are candidates for systemic therapy.
Both the FDA and the CDC’s Advisory Committee for Immunization Practices are on the threshold of revising how vaccines are approved and used in the U.S., but whether that opens to a precipice or a new era of stronger evidence and safer use is in the telling of the beholder.
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