Moderna & Merck AI Releases: mRNA-4157

ThursdAI — the weekly AI news podcast hosted by Alex Volkov — has covered one Moderna & Merck release so far: mRNA-4157 on Aug 20, 2026. Moderna/Merck mRNA cancer vaccine clears Phase 3 in melanoma. The entry below has primary-source links, key numbers and the episode where we covered it live.

1 release1 episodecovered Aug 20, 2026

August 2026 1

Moderna & Merck
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mRNA-4157

Moderna/Merck mRNA cancer vaccine clears Phase 3 in melanoma

Moderna and Merck's Phase 3 trial of mRNA-4157, a personalized mRNA cancer vaccine, met both its primary and secondary endpoints in 1,137 patients with advanced melanoma — one of the deadliest cancers and one of the first personalized treatments of its kind headed to market. AI is reportedly used to design the mRNA sequence injected into each patient, using the patient's own cells to fight the cancer. Moderna surged 115% in a day on the news.

1,137 advanced melanoma patients in the Phase 3 trial115% Moderna stock surge in one day