Moderna stock surged by 6% on Tuesday following the release of promising data regarding its cancer vaccine. The data, presented at the American Association for Cancer Research’s annual meeting, indicated potential efficacy beyond the intended target of melanoma.
Moderna revealed that its cancer vaccine exhibited improved overall survival rates in patients with HPV-negative head-and-neck squamous-cell cancer (HNSCC) when combined with Merck’s Keytruda compared to Keytruda alone, as shown in earlier Phase 2/3 studies. The analysis, conducted about nine months post-trial completion on May 4, 2023, involved 28 enrolled individuals, with 22 receiving Moderna’s personalized cancer vaccine, MRNA-4157.
Results indicated a 27% overall response rate (ORR), with 3.4 months of progression-free survival (PFS), and 24.6 months of overall survival (OS). These outcomes were notably superior to Keytruda monotherapy studies, with ORRs of 18% and 15%, PFS of 2.1 months, and OS ranging from 8.4 to 8.8 months.
Jefferies analysts commented favorably on the data, suggesting it could support Moderna’s potential expansion into first-line treatment in combination with PD1 inhibitors. Keytruda, a monoclonal antibody targeting the PD-1 pathway, has already shown efficacy in combination with chemotherapy.
While Moderna is primarily focused on studying the vaccine for melanoma treatment, HNSCC presents a significant unmet medical need, prompting speculation about the company’s future plans. Jefferies anticipates Moderna engaging with the FDA once enrollment in Phase 3 trials progresses significantly, likely in the latter half of the year, potentially paving the way for accelerated approval.