This study looks at a new way to find and track cancer using a blood test called a cfDNA assay. The test checks for changes in the DNA that might show if someone has cancer or if cancer is coming back. The study focuses on many types of cancer, like breast, lung, and prostate cancer.
Participants: Some people in this study have cancer, and some don’t. Everyone will give a blood sample and share some health information. People with certain cancers will have more follow-ups to see how well the test works to find small amounts of cancer left after treatment. For the first year, these people will have blood tests every 3 months and then every 6 months for 2 more years. Others will have yearly checkups for 3 years. People without cancer will have checkups every 6 months for 3 years.
- Study lasts up to 3 years with multiple follow-ups.
- Participants do not receive individual test results.
- Participants must be 40 years or older.