Long considered a make-or-break market for novel drugs and biologics and a success story for generics, the U.S. has been more challenging for biosimilars than many experts initially expected. U.S. biosimilar “uptake has been good, but not great,” Steven Lucio, senior principal for pharmacy solutions at Vizient Inc., told BioWorld. That could change next year when at least seven biosimilars referencing Abbvie Inc.’s immunosuppressive drug, Humira (adalimumab), are expected to launch in the U.S.
Researchers from Anacor Pharmaceuticals Inc. and Pfizer Inc. have published preclinical data for the novel benzoxaborole prodrug AN-15368, being developed for the treatment of Chagas disease.
In the hope of preventing thousands of hospitalizations and deaths over the next few months, the U.S. CDC’s Advisory Committee on Immunization Practice (ACIP) voted 13-1 Sept. 1 to recommend the use of Moderna Inc.’s and Pfizer Inc.-Biontech SE’s updated vaccines that contain components of both the original SARS-CoV-2 virus and the omicron BA.4/5 subvariants as boosters.
Researchers from Pfizer Inc. presented preclinical data for the melanocortin MC4 receptor (MC4R) antagonist PF-07258669, being developed for the treatment of anorexia nervosa.
Right on cue, the U.S. FDA authorized bivalent COVID-19 vaccines from Moderna Inc. and Pfizer Inc.-Biontech SE to be given as boosters at least two months following a primary vaccine series or a previous booster. “These updated boosters present us with an opportunity to get ahead of the next wave of COVID-19,” FDA Commissioner Robert Califf said, following the Aug. 31 announcement.
Three of the biggest COVID-19 vaccine developers are heading into a legal battle. Moderna Inc. said it has filed lawsuits alleging the Pfizer Inc.-Biontech SE Comirnaty vaccine infringes patents Moderna filed between 2010 and 2016 that cover its mRNA technology. Pfizer and Biontech “unlawfully” copied the technology without permission, according to Moderna.
Interim analysis of a phase III trial testing a single dose of Pfizer Inc.'s bivalent respiratory syncytial virus (RSV) vaccine candidate, RSVpreF, in older adults has revealed efficacy good enough to support a planned BLA submission for the vaccine to the U.S. FDA in fall 2022, the company said. Preparation for further submissions to other regulatory agencies are underway.
Moderna Inc.’s and Pfizer Inc.-Biontech SE’s COVID-19 bivalent boosters could be coming to the U.S. in the first week or so of September – even though the U.S. FDA just received the completed emergency use authorization (EUA) requests for the vaccines this week. The CDC is already taking pre-orders from providers, states and other jurisdictions for the yet-to-be authorized booster doses as part of its fall-winter booster campaign strategy. It also scheduled a Sept. 1-2 meeting of its Advisory Committee for Immunization Practices, signaling that it expects the FDA to grant the EUAs by the end of August.
While other COVID-19 vaccine makers are developing bivalent boosters comprising the original SARS-CoV-2 strain and an omicron variant, Russia’s Gamaleya National Research Center of Epidemiology and Microbiology is trekking a different course. Leaving behind the ancestral strain, Gamaleya’s next generation of the Sputnik V vaccine has been specifically adapted against delta and omicron variants of the coronavirus.
It’s a step forward and a step back at Pfizer Inc. Even as Pfizer and its partner Biontech SE finished filing an emergency use authorization application with the U.S. FDA seeking to field an updated booster dose of their omicron COVID vaccine, the regulator has made a request of its own, for more data on the company's oral antiviral, Paxlovid (nirmatrelvir + ritonavir), for treating COVID-19. An Aug. 5, 2022, letter from the FDA stipulates post-EUA requirements for Paxlovid, including that Pfizer conduct a trial in patients with a relapse of COVID symptoms, longhand for a “rebound,” after an initial Paxlovid treatment course.
