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ModernaMerck Personalized Melanoma Vaccine Sustains 5-Year Benefit, Cutting Recurrence Risk by 49%

Next steps center on Phase 3 confirmation, with full data pending.

Overview

  • In the Phase 2b KEYNOTE-942 study, intismeran autogene plus Keytruda maintained a 49% reduction in recurrence or death at five years versus Keytruda alone after surgical resection of high-risk melanoma.
  • Safety remained consistent with earlier readouts, with no new signals reported and common effects including fatigue, injection-site pain and chills.
  • The adjuvant melanoma Phase 3 trial (INTerpath-001) has completed enrollment, and additional Phase 2/3 studies in lung, bladder and renal cancers are ongoing.
  • Moderna and Merck plan to present further follow-up analyses at an upcoming medical meeting, and peer-reviewed details have not yet been published.
  • The Phase 2b cohort previously included about 157 patients, and market reports say Moderna shares rose to a new 52-week high following the update.