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Three-Drug KRAS Strategy Eradicates Pancreatic Tumors in Mice, CNIO Study Finds

PNAS publishes results from Mariano Barbacid’s team reporting durable tumor clearance without observed toxicity in preclinical models.

Overview

  • The CNIO-led experiments used a three-drug regimen targeting KRAS-driven signaling and, according to the authors, blocked pathways that typically enable resistance.
  • In mouse models of pancreatic ductal adenocarcinoma, tumors disappeared and the animals remained healthy for months without notable side effects.
  • The study was authored by renowned oncologist Mariano Barbacid and appears in the Proceedings of the National Academy of Sciences.
  • The approach builds on a 2019 CNIO mouse study that eliminated tumors by jointly inhibiting EGFR and c‑RAF within the KRAS pathway.
  • Researchers stress the results are preclinical and require replication, dose and safety work, and clinical trials before any potential use in patients.