The success of the President’s Emergency Plan for AIDS Relief (PEPFAR) over the past 20 years is one of the biggest challenges in reaching its goal of eliminating HIV as a global public health threat by 2030, members of the U.S. Senate Foreign Relations Committee were told as they moved toward reauthorizing the program for another five years.
With scientists yet to discover the specific antigen that confers protection from Epstein-Barr virus (EBV), there are currently no prophylactic vaccines available for the diseases it causes, the most well-known of which is infectious mononucleosis but which evidence suggests might also extend to immune disorders, multiple sclerosis and various cancers. This hasn’t stopped companies from trying, and one such player, EBViously Inc., is hedging its bets with a wider net, using as many proteins as possible to mimic the original viral pathogen and its complexity in a vaccine composed of non-infectious virus-like particles.
As investors await phase II/III data from Gritstone Bio Inc.’s closely watched trial with Granite, an individualized neoantigen vaccine for microsatellite-stable colorectal cancer, Wall Street was busy handicapping odds for firm’s new approach, given the struggles by personalized methods generally.
Final phase II data showing improved survival rates in cervical cancer is giving Nykode Therapeutics ASA even more confidence in taking vaccine candidate VB10.16 further into oncology. The company had been considering targeting head and neck cancer for months. Now, with these new data, it said it’s fully behind focusing on PD-L1 patients with up to one prior line of systemic therapy.
The latest U.S. FDA emergency use authorizations to fall by the wayside, as COVID-19 continues to evolve, are the ones for the first Moderna Inc. and Pfizer Inc.-Biontech SE’s mRNA vaccines.
Combining the personalized cancer vaccine mRNA-4157 (V-940, Moderna Inc.) with Keytruda (pembrolizumab, Merck & Co. Inc.) significantly extended recurrence-free survival in patients with stage III/IV resected high-risk melanoma in the randomized phase II KEYNOTE-942/mRNA-4157-P201 trial. Compared to Keytruda alone, adding the vaccine cut the risk of recurrence or death by 44% 18 months after treatment, lead investigator Jeffrey Weber reported at the opening clinical trials plenary of the 2023 annual meeting of the American Association for Cancer Research (AACR).
On Vaccine Day, Moderna Inc. had to tell the world there weren’t enough flu cases to get a good reading in one of its two phase III vaccine studies. The northern hemisphere clinical trial of mRNA-1010, a seasonal quadrivalent vaccine, did not meet the statistical threshold because there were not enough sick participants to test to determine an interim efficacy analysis.
A live-attenuated vaccine targeting SARS-CoV-2 infection, which can be administered through the nose, has shown promise in preclinical animal studies carried out by researchers in Berlin. In an article published April 3, 2023, in Nature Microbiology, the authors reported that the COVID-19 vaccine candidate – sCPD9 – triggered the most robust immune response in a hamster model when compared with Biontech/Pfizer’s mRNA vaccine BNT162b2 and Ad2-Spike.
During the first round of discussion at its two-day hearing on a World Trade Organization proposal to expand the intellectual property (IP) waiver from COVID-19 vaccines to diagnostics and therapies, the U.S. International Trade Commission (USITC) got an earful from both sides of the debate.
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