BioNTech announces Phase 1 trial follow up data for mRNA-based iNeST candidate

BioNTech announced three-year follow-up data from a Phase 1 trial with the mRNA-based individualized neoantigen-specific immunotherapy, or iNeST, candidate autogene cevumeran in patients with resected pancreatic ductal adenocarcinoma. The data show that in 8 out of 16 patients autogene cevumeran elicited an immune response up to three years post administration measured by activated T cells. The persistence of T cels was associated with a longer median recurrence-free survival in cancer vaccine responders. “These new data are an early signal for the potential of our individualized mRNA cancer vaccine approach in this indication with an unmet medical need. The results indicate that our uridine mRNA-LPX technology can promote activation of cytotoxic T cells that may help to eliminate residual tumor foci at early stages of the disease to delay or prevent recurrence,” said Ozlem Tureci, Co-Founder and Chief Medical Officer at BioNTech. “Our ongoing Phase 2 trial with Genentech aims to confirm these findings on benefit for patients with PDAC compared with the current standard of care treatment in the post-surgical, adjuvant setting in a larger patient population. We remain committed to our vision of personalized cancer medicine and aim to help advance the standard of care for many patients.” An ongoing open-label, multicenter, randomized Phase 2 trial, sponsored by Genentech in collaboration with BioNTech, was started in October 2023. The trial will investigate the efficacy and safety of adjuvant autogene cevumeran in combination with the anti-PD-L1 immune checkpoint inhibitor atezolizumab and chemotherapy compared with the current standard of care chemotherapy in patients with PDAC. The Phase 2 trial is currently enrolling patients at clinical trial sites in the United States, with additional sites planned to open globally. Autogene cevumeran is being jointly developed by BioNTech and Genentech and is currently being evaluated in three ongoing randomized Phase 2 clinical trials in adjuvant PDAC, first-line melanoma, and adjuvant colorectal cancer.