RecruitingDiagnostic testClinical Validation of Freenome Multiomics Blood Test for Lung Cancer ScreeningThe PROACT LUNG study is a prospective multi-center observational study to validate a blood-based test for the early detection of lung cancer by collecting blood samples from high-risk participants who will undergo a routine, standard-of-care screening Low-Dose Computed Tomography (LDCT).