Personalized cancer vaccines pass first major clinical test

Elie Dolgin • July 12, 2023

Moderna, BioNTech and others hope that personalized cancer vaccines will soon live up to their potential — even as they work out the wrinkles for the best use of their platform technologies.

Researchers have long suspected that therapeutic vaccines customized to a patient’s cancer might help raise the immune system to fight off the disease. Phase II data from a randomized trial of Moderna’s personalized vaccine mRNA-4157 now provide evidence that these therapeutics can yield meaningful — if still preliminary — clinical benefit.


The findings, reported earlier this year, have revitalized the cancer vaccine community, inspiring companies to intensify efforts to stimulate the immune system to recognize tumour-specific mutations known as neoantigens or neoepitopes.


Continue reading at Nature Reviews Drug Discovery.

Wolf waiting in shallow water with white birds in the background
By Elie Dolgin November 17, 2025
Scientists remain split on whether rope-pulling ingenuity counts as tool use.
Fossil of deer antlers
By Elie Dolgin October 8, 2025
It took nearly 50 years to work out the identity of a caribou-like fossil first discovered by construction workers.