The American Association for Cancer Research, with seven leading cancer research centers, has launched Project GENIE to determine how to better tailor treatments to patients’ individual cancers. The effort will take tumor genomic profiling data from the various institutions and aggregate it into a single database for researchers to harness. We spoke to Barrett Rollins, chief scientific officer at the Dana-Farber Cancer Institute, about the project, how far down the path of precision medicine we have travelled, and how he expects it to reshape cancer care in the years to come.