Tougeron et al. evaluate the prognostic value of circulating tumor DNA (ctDNA) in predicting the efficacy of immune checkpoint inhibitors (ICI) plus chemotherapy in advanced gastric adenocarcinoma. An early decrease in ctDNA concentration is associated with a worse objective response rate, shorter progression free survival and overall survival.
- David Tougeron
- Christophe Louvet
- Pierre Laurent-Puig