Vaccination with infectious Plasmodium falciparum sporozoites (PfSPZ) administered with antimalarial drugs (PfSPZ-CVac) is more effective than vaccination with replication-deficient, radiation-attenuated PfSPZ. However, the requirement for drug administration is a significant limitation of the PfSPZ-CVac strategy.
The FDA has granted orphan drug designation to the active ingredient in Soligenix Inc.’s Suvax, a subunit protein vaccine of recombinantly expressed Sudan ebolavirus (SUDV) glycoprotein, for the prevention and post-exposure prophylaxis against SUDV infection. SUDV is a type of ebolavirus for which there is no current treatment or vaccine.
Evaxion Biotech A/S and a collaborator have successfully concluded a series of large nonrodent animal infection studies testing antigens from Evaxion’s preclinical EVX-B1 vaccine candidate against Staphylococcus aureus. The EVX-B1 antigens were shown to significantly reduce disease burden.
Defence Therapeutics Inc. has announced the successful testing of a second-generation anticancer vaccine, ARM-002, using its lead anticancer molecule Accutox. When tested as a therapeutic vaccine in a melanoma cancer model, ARM-002 led to an 80% complete response when combined with an anti-PD-1 immune-checkpoint inhibitor.
Galectin-3 (Gal-3) is used as a marker of activated microglia, and thus a protein that drives inflammation. Patients with Alzheimer’s disease (AD) have shown increased levels of Gal-3 in their cerebrospinal fluid (CSF) compared to healthy controls, as well as increased expression in their brain tissue.
Merck & Co. Inc. has announced plans to initiate clinical development of a new investigational multi-valent human papillomavirus (HPV) vaccine designed to provide broader protection against multiple HPV types.
The research on novel vaccines against SARS-CoV-2 with improved characteristics continues. These ideal features include rapid development to target variants of concern, easy manufacturing, and an excellent safety profile while inducing humoral and cellular immune responses.
Neuraminidase (NA) is an essential surface protein of influenza viruses with potential as an effective drug and vaccine target. However, knowledge of the NA antigenic landscape remains limited, and most current influenza vaccines induce antibodies against the surface glycoprotein hemagglutinin.
Imunon Inc. has released promising results from a live virus challenge study conducted by the Wistar Institute with IMNN-101 against the SARS-CoV-2 variant XBB.1.5. This study was conducted using the clinical vector that Imunon intends to bring into its phase I study during the second quarter, and showed IMNN-101 immunogenicity and protective activity in a live viral mouse challenge.
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