Cancer Vaccine Cuts the Risk of Melanoma Recurrence, Merck and Moderna Report NYT - Top Stories By: Nina Agrawal 22 October 2026 at 23:48 Merck and Moderna released detailed results on an experimental vaccine to treat the skin cancer. © Bill Sikes/Associated PressModerna is one of two drugmakers that announced on Thursday the full results of a closely watched trial of an experimental vaccine given to patients with melanoma.