Core Insights - Moderna's shares increased by 15.8% following the announcement of positive five-year follow-up data from a phase IIb study on its personalized cancer therapy for high-risk melanoma patients [1][6] Group 1: Study Overview - The KEYNOTE-942/mRNA-4157-P201 study assessed Moderna's mRNA-based individualized neoantigen therapy (intismeran autogene) in combination with Merck's PD-L1 inhibitor, Keytruda, for treating high-risk melanoma patients post-surgery [2][7] - The study showed that the combination therapy significantly improved recurrence-free survival, reducing the risk of recurrence or death by 49% compared to Keytruda alone [3][4] Group 2: Long-term Efficacy and Safety - The follow-up analysis indicated sustained and clinically meaningful improvements in recurrence-free survival, marking a significant milestone for the therapy [3][4] - The safety profile of intismeran autogene combined with Keytruda remained consistent with previous studies [5] Group 3: Future Developments - Moderna and Merck plan to present additional follow-up data at upcoming medical meetings [4][7] - Beyond melanoma, the therapy is being evaluated in pivotal phase III studies for non-small cell lung cancer and other cancer types, with a commercial launch targeted for next year [9] Group 4: Pipeline Expansion - Moderna is focusing on expanding its oncology pipeline, including the development of mRNA-4359, an investigational therapy for melanoma and metastatic non-small cell lung cancer, with data expected in 2026 [10]