What if you could detect cancer just as it is getting started? New research published in the journal Nature just might give medicine the tools to do just that.

Personal Genome Diagnostics Inc. reported that the cancer genomics company’s 500+ gene pan-cancer tumor profiling tissue assay is being used in Merck’s Phase 2 precision oncology KeyImPaCT study of biomarker-directed, pembrolizumab-based combination therapy for advanced non-small-cell lung cancer (KEYNOTE-495).

Swiss drugmaker Roche upped the company’s bet on personalized cancer treatment and is ready to sell a blood test around the world that can identify common gene mutations from solid tumors from a patient’s blood.