Clinical trials
Circulating Tumor DNA clinical trials
Below are recruiting circulating tumor dna clinical trials, each written for real people, not researchers. We’re tracking 87 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06445114RecruitingPhase 2
Blood-Guided Chemoradiation for HPV-Positive Throat Cancer
This study tests whether a blood test that looks for circulating HPV DNA (ctDNA) can help doctors decide if you need chemotherapy after surgery for HPV-positive throat cancer. After you have surgery to remove the cancer, you receive radiation (possibly with chemotherapy) — the results of the blood test guide whether or not to add chemo.
Beverly Hills, CaliforniaAges 18 years+ - NCT06358222Recruiting
Lung cancer trial testing blood test and PET scan for spread
This trial studies if a blood test that looks for tumor DNA combined with a PET-CT scan can better predict if lung cancer has spread to lymph nodes. It may help guide treatment decisions for people with non-small cell lung cancer that hasn't been treated yet.
ShanghaiAges 18–75 - NCT06323460RecruitingPhase 2
Less Radiation for HPV Throat Cancer Guided by a Blood Test
This study tests a way to use less radiation for HPV-related throat cancer. Doctors will adjust your treatment based on a simple blood test that tracks cancer DNA, so you may get only the treatment you need.
Columbus, OhioAges 18 years+ - NCT06307938Recruiting
Liquid biopsy test for colorectal cancer before colonoscopy
This trial tests a simple blood test (liquid biopsy) to find cancer signals in the DNA of people being called for a colonoscopy. If you are scheduled for a colonoscopy, your blood sample could help doctors detect colorectal cancer earlier and plan better treatment.
LevangerAges 18 years+ - NCT05770531RecruitingPhase 2
Blood test guides chemo changes for metastatic breast cancer
This Phase 2 study uses a blood test that looks for “circulating tumor DNA” to help decide if standard chemotherapy should be changed. It aims to see whether this approach improves how well treatment works for certain metastatic (stage IV) breast cancers.
Nashville, TennesseeAges 18 years+ - NCT06257017RecruitingPhase 2
Using DNA tests to guide chemotherapy after bladder cancer surgery
This trial checks if a DNA blood test can help decide who needs extra chemo after bladder or upper urinary tract cancer surgery. It tests whether watching for cancer DNA in the blood can match patients to the right treatment.
Hong Kong, Hong KongAges 18–70 - NCT06247449Recruiting
MRI screening for brain metastases in aggressive breast cancer
This trial uses an MRI scan to look for early signs of breast cancer spreading to the brain in people with certain aggressive breast cancer types (triple-negative or HER2-positive) that are stage IIb or III. The goal is to find and treat brain metastases earlier, before they cause symptoms.
Toronto, OntarioAges 18 years+ - NCT06167460Recruiting
Blood test to monitor targeted therapy response in advanced lung cancer
This study uses a simple blood test to look at bits of tumor DNA (called circulating tumor DNA) to see how well your targeted therapy (TKI) is working. It helps doctors predict and monitor whether the treatment is effective for your advanced lung cancer.
Ho Chi Minh CityAges 18–80 - NCT06157060Recruiting
Predicting liver cancer return after surgery with a blood test
This trial is for people with early-stage liver cancer who are scheduled for surgery. It uses a simple blood test to look for tiny bits of tumor DNA after treatment, which may help predict if the cancer will come back.
Foshan, GuangdongAges 18–75 - NCT06167967Recruiting
Blood test for chemotherapy guidance in stage 3 colorectal cancer
This study uses a blood test to check for tumor DNA after surgery, which may help doctors decide if you need additional chemotherapy. It is for people with stage 3 colorectal cancer that is removed by surgery.
Hanzhou, ZhejiangAges 18–75 - NCT06098560Recruiting
ctDNA as a marker for immunotherapy in advanced colorectal cancer
This study looks at whether a blood test for tumor DNA (ctDNA) can predict how well immunotherapy works in people with advanced or locally advanced colorectal cancer that has specific genetic features (dMMR/MSI-H). If you qualify, the trial will monitor your ctDNA levels while you receive standard immunotherapy to see if changes in those levels can show early on if the treatment is working.
Beijing, Beijing MunicipalityAges 18–80 - NCT06145139Enrolling by invitation
Liquid biopsy for kidney cancer: tracking tumor DNA after surgery
This study looks at whether a simple blood test can detect tiny bits of kidney cancer DNA after surgery. If successful, it could help doctors spot a return of cancer earlier than scans alone.
Aarhus NAges 18 years+ - NCT06043921Recruiting
Personalized blood test for pancreatic cancer
This study uses a personalized blood test to look for tiny pieces of tumor DNA in people with pancreatic cancer. It helps doctors understand how the cancer changes during treatment.
KashiwaAges 20 years+ - NCT05940311Recruiting
Blood test for melanoma with BRAF V600E mutation
This trial studies a very sensitive blood test to detect melanoma-related genetic changes in people with BRAF V600E. It may help track the disease more closely and guide care in advanced or high-risk situations.
RomeAges 18 years+ - NCT05787197Recruiting
Blood test to guide treatment after colon cancer liver surgery
This trial studies a blood test (called ctDNA) in people with colon cancer that has spread to the liver and is being removed with curative surgery. The goal is to see how the blood test can help with planning and improving treatment after surgery.
BesançonAges 18 years+ - NCT05763511Recruiting
Blood test to help diagnose ovarian cancer sooner
This study checks whether a special blood test (circulating tumor DNA) can help find ovarian cancer when it’s suspected. It may help doctors diagnose more accurately and sooner, so the right treatment can start sooner.
AarhusAges 18 years+ - NCT04120701RecruitingPhase 3
Using blood DNA tests to guide colon cancer treatment after surgery
This trial tests whether a blood test that looks at cancer DNA can help decide whether you need “adjuvant” (extra) chemotherapy after colon cancer surgery. It may help some patients avoid unnecessary chemotherapy while still keeping the cancer from coming back.
DijonAges 18–75 - NCT05572801Recruiting
Tumor DNA blood tests to guide follow-up after anal cancer
This study tests whether regular blood tests looking for “tumor DNA” can help guide your follow-up care after anal cancer treatment. It may help doctors decide what type of monitoring you need during check-ups.
Herlev, Capital Region of DenmarkAges 18 years+ - NCT05534087RecruitingPhase 3
Blood test guided chemo after colon cancer surgery
This study tests whether giving additional (adjuvant) chemotherapy based on a special blood test—circulating tumor DNA (ctDNA)—can lower the risk of colon cancer coming back. It targets people with stage II–III colon cancer whose blood test is positive for minimal residual disease (MRD) after completing standard chemo.
BusanAges 19–75 - NCT05502523Recruiting
Blood test DNA levels after lung surgery
This study looks at how different lung surgical techniques affect levels of tumor DNA in the blood before and after surgery for early-stage lung cancer. It may help doctors choose surgical approaches and use a blood test to monitor cancer after surgery.
Abington, PennsylvaniaAges 18 years+ - NCT04966663RecruitingPhase 2
Using blood DNA tests to guide lung cancer treatment
This study uses a blood test called ctDNA to look for leftover lung cancer after surgery. Based on that result, the trial will help decide which treatment approach is best for you and may catch cancer returning earlier.
Toronto, OntarioAges 18 years+ - NCT04893564Recruiting
Testing blood DNA after 6 months of Waldenström treatment
This study looks at a blood test called circulating tumor DNA, measured after 6 months of treatment, to see how well it predicts outcomes in people with Waldenström macroglobulinemia. It may help doctors better judge who is responding and who may need treatment adjustments earlier.
AmiensAges 18 years+ - NCT04846933Recruiting
Testing extra scans and data to guide ovarian cancer treatment
This trial collects information from people with suspected ovarian cancer and uses it to improve diagnosis and help predict which treatments may work. It may also look for targeted options, based on scan and medical data results.
TurkuAges 18 years+ - NCT04768426RecruitingPhase 2
Watching DNA in blood while taking capecitabine after breast cancer
This trial checks how a blood test that looks for cancer DNA (ctDNA) changes during and after you take capecitabine after early triple-negative breast cancer. It aims to see whether these blood test results can help monitor the chance of the cancer coming back.
Stanford, CaliforniaAges 18 years+
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Common questions
- Are there clinical trials for circulating tumor dna?
- Yes. Clin2 currently lists 87 recruiting circulating tumor dna studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a circulating tumor dna trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a circulating tumor dna trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.