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
- NCT07756437Recruiting
Blood test for detecting bladder cancer DNA
This study is testing a simple blood test that looks for cancer DNA in your blood. The goal is to see if it can accurately detect muscle-invasive bladder cancer or upper tract urothelial cancer.
Ghent, East FlandersAges 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 - NCT06706557Recruiting
Studying tumor DNA in HER2-low advanced breast cancer
This trial looks at tumor DNA in the blood of people with a certain type of advanced breast cancer called HER2-low. The goal is to learn more about this cancer and how it changes over time, which may help guide future treatments.
Milan, MIAges 18 years+ - NCT05027828Recruiting
Blood test may track ovarian cancer treatment response
This study checks whether a blood test (ctDNA) can show how well ovarian, fallopian tube, or primary peritoneal cancer treatment is working. If the test reliably reflects response, it could help doctors adjust treatment earlier and more precisely.
ShanghaiAges 18 years+ - NCT06440902RecruitingPhase 2
New treatments for RAS-changed colorectal cancer using blood tests
This study tests new treatment plans for people with metastatic colorectal cancer whose tumors originally had a RAS mutation but later show no RAS mutation in blood tests. The goal is to see if these treatment changes can help shrink or control the cancer.
Shanghai, Shanghai MunicipalityAges 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 - NCT06762405RecruitingPhase 3
Testing dostarlimab with short radiation for MSI rectal cancer
This trial tests a new approach: giving the immunotherapy drug dostarlimab along with a short course of radiation before surgery, with the goal of avoiding surgery in many patients. It is for people with a specific type of rectal cancer (MSI-H or dMMR) that has not spread to other organs.
DijonAges 18 years+ - NCT05116579Recruiting
Using blood DNA tests to track PARP inhibitor response
This trial uses a blood test (circulating tumor DNA) to see whether PARP inhibitors are working for certain men with advanced prostate cancer. It may help predict which treatment responses are likely and monitor changes over time.
Guangzhou, GuangdongAges 18–75 - NCT06923527RecruitingPhase 2
Testing ctDNA to start elacestrant in early breast cancer
This trial tests whether the drug elacestrant can help prevent recurrence in people with a type of breast cancer (ER+/HER2-) who have finished hormone therapy and have signs of cancer DNA in their blood (ctDNA positive) but no visible spread on scans.
New Haven, ConnecticutAges 18 years+ - NCT06966440Recruiting
MRD-Guided Chemotherapy After Pancreatic Cancer Surgery
This trial tests whether using a special blood test (MRD) to guide chemotherapy after pancreatic cancer surgery can improve outcomes. It is for people who have had their cancer completely removed and are ready for standard follow-up therapy.
ShanghaiAges 18–75 - 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 - 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 - NCT04099290Recruiting
Blood DNA test in newly diagnosed head and neck cancer
This study looks at “circulating tumor DNA” (tumor DNA found in blood) in people with newly diagnosed, locally advanced head and neck squamous cell cancer. Researchers want to see how the blood DNA levels relate to the cancer and how it may guide treatment after surgery.
Chapel Hill, North CarolinaAges 18 years+ - NCT04197414Recruiting
Urology DNA registry to personalize cancer care
This study builds a urology cancer “DNA registry” by analyzing circulating tumor DNA found in the blood. Your information and permission help researchers better personalize treatment for cancers like prostate, kidney, bladder, and ureter cancer.
SeoulAges 20 years+ - NCT04434040RecruitingPhase 2
Atezolizumab and sacituzumab to prevent breast cancer return
This trial tests two medicines after surgery and chemotherapy to help lower the risk that triple-negative breast cancer comes back. It’s for people whose cancer still showed “residual” invasive disease after neoadjuvant (before-surgery) chemotherapy, and whose blood test shows traces of tumor DNA.
San Francisco, CaliforniaAges 18 years+ - NCT04680260RecruitingPhase 2
Personalized follow-up after limited surgery or radiation for colon cancer
This Phase 2 study tests the best way to choose and then follow treatment when colorectal cancer has spread only to a small number of spots. You may be eligible if your doctors can remove or precisely treat the spots and there’s no sign of additional spread on scans.
Aarhus NAges 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+ - 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+ - 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+ - 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+ - 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+ - 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+ - 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+ - 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+
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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.