Decades-old national estimates indicate that only 2%-3% of adults with cancer participate in clinical trials. However, these outdated estimates focus on patient enrollment in treatment trials only.
The researchers assessed annual enrollment in a variety of study types, including those focused on treatments, diagnostics, economic, genetics, prevention, quality of life, and registry data, between 2013 and 2017. The researchers estimated that 7.1% of adults with cancer participated in treatment trials between 2013 and 2017, more than two times higher than the historical estimates of 2%-3%.