Circulating tumor DNA (ctDNA) is DNA that comes from cancerous cells and tumors. Using ctDNA to diagnose a tumor can reduce the need for a tumor biopsy.

Jul 31, 2025 · What is ctDNA and ctDNA testing? Circulating Tumor DNA (ctDNA) means that fragments (parts) of your tumor are in your blood. ctDNA testing is a blood test that can help find cancer.

Aug 2, 2025 · Circulating tumor DNA (ctDNA) testing is a non-invasive method that analyzes fragments of tumor DNA found in a patient’s bloodstream. This approach holds significant promise in managing …

Jun 26, 2023 · This free-floating genetic material, known as circulating tumor DNA, or ctDNA, contains a trove of information about the tumor. Advances in technology have made it possible to extract ctDNA …

Signatera™ is designed to detect ctDNA of somatic and truncal variants to optimize sensitivity. Tumor-informed method enables filtering of CHIP mutations to decrease false positive rates.

Aug 23, 2021 · Known as a liquid biopsy, we can learn what’s going on inside a patient’s body by examining circulating tumor DNA (ctDNA) or circulating tumor cells captured with a blood draw.

Learn how ctDNA and liquid biopsy are used in your colorectal cancer biomarker testing, treatment response monitoring, and diagnosis of cancer recurrence.

How is it detected? CtDNA testing is done using a blood sample, or liquid biopsy. Next-generation sequencing (NGS) may be used to analyze ctDNA to determine the status of other biomarkers.

ctDNA tests, also called liquid biopsy, analyze blood samples to look for fragments of genetic information (DNA) shed by cancer cells into the bloodstream.

Circulating tumor DNA (ctDNA) refers to small fragments of DNA shed from cancer cells into the bloodstream. ctDNA testing uses a blood and tissue sample to help clinicians understand a patient’s …