Clinical trials
Blood Circulation clinical trials
Below are recruiting blood circulation clinical trials, each written for real people, not researchers. We’re tracking 63 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06430021Recruiting
Blood test for neuroendocrine tumors in MEN1
This study is testing a new blood test to see if it can help diagnose neuroendocrine tumors in people with MEN1, a genetic condition that increases the risk of these tumors. The test looks for a protein called hPG80 (progastrin) and may help doctors find tumors earlier.
DijonAges 18–60 - NCT05854368Recruiting
Blood tests to detect early stomach changes and cancer
This study looks for a blood “signature” that can spot early, risky stomach changes (before cancer) and stomach cancer. It may help clinicians diagnose earlier and decide who needs closer follow-up.
Boulogne-BillancourtAges 18 years+ - NCT05710679Recruiting
Blood test predicts leftover cancer after intensified head and neck radiation
This study uses a blood test to see whether cancer DNA is still detectable after a stronger combination of radiation and chemotherapy for locally advanced head and neck cancer. The goal is to predict who may have “residual” (remaining) disease and help guide future care.
Clermont-Ferrand, Puy-de-DômeAges 18–80 - NCT06536127Recruiting
Immune cells in non-spreading rectal cancer treatment
This study is looking at immune cells (NK cells and ImmunoScore) in the blood of people with rectal cancer that hasn't spread. It may help doctors learn more about how the immune system responds to standard chemoradiation treatment.
AvignonAges 18 years+ - NCT06904625Recruiting
Capturing tumor cells in metastatic breast or prostate cancer
This study compares different methods of capturing circulating tumor cells (CTCs) from blood samples in patients with metastatic breast or prostate cancer. It aims to improve how we detect and monitor cancer cells that have spread, which could help guide future treatment decisions.
ToulouseAges 18 years+ - NCT06588322Recruiting
Detecting gene changes in blood of ovarian cancer patients on PARP inhibitor
This study looks for specific gene mutations in the blood of ovarian cancer patients who have a BRCA mutation and are starting first-line maintenance therapy with a PARP inhibitor called Olaparib. It aims to better understand how these mutations may affect treatment response.
AngersAges 18 years+ - 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+ - NCT02579278Recruiting
Tests blood DNA and scans in early colon cancer surgery
This study looks at a blood test that detects cancer DNA (ctDNA) and compares it with CT scan findings before surgery. It may help doctors understand how aggressive the cancer is and how scan features relate to blood test results.
Margate, KentAges 16 years+ - NCT03551951Recruiting
Testing cancer cells and DNA in blood, urine, and bone marrow
This study looks for cancer-related cells and DNA in samples like blood, urine, and (for some) bone marrow. The goal is to see whether these tests can help detect or track solid cancers with minimal added procedures.
Columbia, MissouriAges 18 years+ - NCT07427537Recruiting
Studying nerve damage from chemotherapy in colorectal and lung cancer patients
This study looks for small molecules in the blood that might predict nerve damage caused by certain chemotherapies. If you have colorectal or lung cancer and are starting a specific chemo plan, this trial could help researchers understand why some people get nerve problems and others don't.
Clermont-FerrandAges 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+ - NCT06813573Recruiting
Nucleosome blood test for first lymphoma treatment
This study is looking at a new blood test that measures tiny DNA particles (called nucleosomes) in patients with two types of lymphoma who are about to start standard first treatment. The goal is to see if the test can help predict how well treatment works.
VillejuifAges 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 - NCT06550115Recruiting
Night shift workers and their blood vessel & sugar health
This trial studies how sleep patterns affect blood vessel health and sugar control in long-term night shift workers. It may help find better ways to prevent heart problems and diabetes.
Fort Collins, ColoradoAges 18–65 - NCT07282912RecruitingPhase 2
Extra treatment for certain digestive cancers with undetectable ctDNA
This trial tests if adding extra local treatments (like surgery or radiation) to usual care can improve outcomes for people with certain advanced digestive cancers that have spread to a limited number of sites. You may be eligible if your cancer has responded well to at least 4 months of therapy and your ctDNA (a sign of cancer in the blood) is undetectable.
New Haven, ConnecticutAges 18–80
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Common questions
- Are there clinical trials for blood circulation?
- Yes. Clin2 currently lists 63 recruiting blood circulation 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 blood circulation 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 blood circulation 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.