Reporting from AACR 2023, Jeffrey S. Weber presents the results from primary analysis of the KEYNOTE-942 trial, testing a combination of pembrolizumab plus a novel mRNA-based vaccine based on personalised neoantigens from patients with high-risk resected melanoma, compared to pembrolizumab alone. The combined therapy showed an encouraging 44% reduction in the risk of recurrence or death. It’s the first successful cancer vaccine trial in melanoma but a larger confirmatory study is needed.
Abstract: CT001 - A personalized cancer vaccine, mRNA-4157, combined with pembrolizumab versus pembrolizumab in patients with resected high-risk melanoma: Efficacy and safety results from the randomized, open-label Phase 2 mRNA-4157-P201/Keynote-942 trial