Vaccine Info

mRNA-4157 Cancer Vaccine


mRNA-4157 is a therapeutic vaccine candidate that is a combination of validated defined neoantigens, predicted neoepitopes and mutations in driver genes into a single mRNA concatemer (mRNA-4650).


mRNA-4157 is indicated to vaccinate patients with metastatic common epithelial cancers.


Patients are vaccinated intramuscularly at two-week intervals for four cycles, and dosing may be repeated for a second course of vaccination.


June 1, 2019: The data showed that the mRNA personalized cancer vaccine (PCV) mRNA-4157, given alone or in combination with Merck’s pembrolizumab (KEYTRUDA®), was well-tolerated at all doses tested and elicited neoantigen-specific T-cell responses.

There were no vaccine-related serious adverse events (SAEs) reported for the PCV when administered to patients as a monotherapy or in combination with pembrolizumab.

Clinical Trial NCT03897881: An Efficacy Study of Adjuvant Treatment With the Personalized Cancer Vaccine mRNA-4157 and Pembrolizumab in Patients With High-Risk Melanoma (KEYNOTE-942)

  • The purpose of this study is to assess whether postoperative adjuvant therapy with mRNA-4157 and pembrolizumab improves recurrence-free survival (RFS) compared to pembrolizumab alone in patients with complete resection of cutaneous melanoma and a high risk of recurrence.
09/30/2019 - 16:30