Pfizer Inc. (NYSE: PFE) and BioNTech SE (Nasdaq: BNTX) today announced the publication of new results from two laboratory studies demonstrating that three doses of the Pfizer-BioNTech COVID-19 Vaccine (BNT162b2) elicited antibodies that neutralize the Omicron variant (B.1.1.529). 
Sanofi and Exscientia announced a groundbreaking research collaboration and license agreement to develop up to 15 novel small molecule candidates across oncology and immunology, leveraging Exscientia's end-to-end AI-driven platform utilizing actual patient samples. The companies have been working together since 2016 and in 2019, Sanofi in-licensed Exscientia's novel bispecific small molecule candidate capable of targeting two distinct targets in inflammation and immunology. Pfizer Inc. (NYSE: PFE) today shared results from multiple studies demonstrating that the in vitro efficacy of nirmatrelvir, the active main protease (Mpro) inhibitor of PAXLOVID™ (nirmatrelvir [PF-07321332] tablets and ritonavir tablets), is maintained against the SARS-CoV-2 variant Omicron. Taken together, these in vitro studies suggest that PAXLOVID has the potential to maintain plasma concentrations many-fold times higher than the amount required to prevent Omicron from replicating in cells. 
GlaxoSmithKline plc (LSE/NYSE: GSK) and Vir Biotechnology, Inc. (Nasdaq: VIR) announced that the US Government will purchase an additional 600,000 doses of sotrovimab, an investigational monoclonal antibody for the early treatment of COVID-19, enabling further nationwide access to sotrovimab for patients. 
Positive results from a preliminary analysis of an ongoing safety and immunogenicity trial (D7220C00001) showed that Vaxzevria (ChAdOx1-S [Recombinant]), when given as a third dose booster, increased the immune response to Beta, Delta, Alpha and Gamma SARS-CoV-2 variants, while a separate analysis of samples from the trial showed increased antibody response to the Omicron variant. 
Novartis and Molecular Partners announced that Part A of the EMPATHY clinical trial(1) that compared single intravenous doses of ensovibep, a DARPin antiviral therapeutic candidate vs. placebo to treat COVID-19, met the primary endpoint of viral load reduction over eight days. The two secondary endpoints also showed clinically meaningful benefit over placebo - (1) composite endpoint of hospitalization and/or Emergency Room (ER) visits or death, and (2) time to sustained clinical recovery. 
Amgen (NASDAQ:AMGN) and Arrakis Therapeutics today announced a research collaboration focused on the discovery and development of RNA degrader therapeutics against a range of difficult-to-drug targets in multiple therapeutic areas. This new class of "targeted RNA degraders" consists of small molecule drugs that selectively destroy RNAs encoding disease-causing proteins by inducing their proximity to nucleases.