As COVID-19 vaccine development continues, the U.S. FDA is releasing a revised version of its 2020 guidance, “Development and licensure of vaccines to prevent COVID-19.”
The official end of the COVID-19 public health emergency in the U.S. in May did not mark the end of interest and investment in the area. In the shifting landscape, attention has pivoted to new markets, emerging strains, boosters, and the commercialization and distribution of COVID-19 vaccines and therapies.
The vagaries of the COVID-19 market and the uncertainties of pandemic fatigue are hitting some biopharma companies in the pocketbook, at least for now. Due to lower-than-expected revenues from its COVID-19 Comirnaty vaccine and antiviral Paxlovid (nirmatrelvir/ritonavir), Pfizer Inc. reduced its 2023 revenue guidance by $9 billion after hours Oct. 13, saying it now anticipates full-year 2023 revenues to range from $58 billion to $61 billion – down from its previous guidance range of $67 billion to $70 billion.
Researchers who follow their instincts and achieve slow results while trying to break barriers have little support. They replace it with persistence. This is the story of Katalin Karikó and Drew Weissman. What was once a dream in their minds was later a success. Their work together for decades was essential to achieving mRNA vaccines, and their perseverance was rewarded today with the 2023 Nobel Prize in Medicine.
Instead of the bivalent COVID-19 vaccines comprising both the original and omicron BA.4/BA.5 SARS-CoV-2 strains that have been in use in the U.S. since April, the CDC’s Advisory Committee for Immunization Practices voted 13-1 Sept. 12 to recommend the universal use of updated monovalent XBB-containing COVID-19 vaccines as authorized or approved by the FDA.
Moderna Inc. has more than COVID-19 vaccines in the hopper, and the company aims to add still more oomph by way of an oncology deal with Immatics NV that could be worth more than $1.7 billion for the latter, which banks $120 million up front and stands to collect research funding as well.
Brii Biosciences Ltd.’s therapeutic vaccine for hepatitis B (HBV), BRII-179 (VBI-2601), induced functional immune responses – inducing broad antibody and T-cell responses – in patients with chronic HBV in a phase II trial that evaluated the vaccine in combination with pegylated interferon-alfa, according to interim results.
Messenger RNA, or mRNA, represents a relatively new class of therapeutics with the potential to prevent and treat a wide range of diseases. A well-known success story is of the mRNA vaccines that controlled the COVID-19 pandemic, which has fueled enthusiasm for the field. But biotechs are also developing mRNA candidates for several other infectious diseases, including malaria, tuberculosis and HIV, as well for cancer, autoimmune and allergic diseases. However, delivering nucleic acid therapeutics can be challenging, since mRNA cannot get into cells on its own. “Nucleic acid therapeutics can be incredibly fragile,” Thomas Madden, CEO of Acuitas Therapeutics, told BioWorld. “When injected into the body without a delivery system, messenger RNA, for example, is rapidly destroyed.”
Biontech SE and Pfizer Inc. filed a petition with the U.S. Patent Trial and Appeal Board for an inter partes review against Moderna Inc., the latest move in an ongoing patent battle over the mRNA technology used to develop COVID-19 vaccines.
About two weeks after chikungunya virus (CHIKV) vaccine contender Bavarian Nordic A/S provided phase III data with its prospect, rival Valneva SE rolled out positive phase III safety findings in adolescents with its single-dose candidate VLA-1553. Results from the Saint-Herblain, France-based company’s first trial in an endemic area with people previously infected with CHIKV showed the product was generally safe and well-tolerated in subjects aged 12-17 years, regardless of previous infection by the mosquito-borne disease, carried mainly by Aedes aegypti and Aedes albopictus. Immunogenicity data from the study are expected in November.
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