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
- NCT07446088Recruiting
Home electric stimulation for better blood flow
This trial tests a home-use device that uses mild electric stimulation to improve blood circulation. It may help if you are looking for a non-drug way to boost circulation.
WŏnjuAges 19–65 - NCT07310537Recruiting
Liquid biopsy trial for colorectal cancer liver metastases
This study tests whether a simple blood sample from your finger can detect tumor DNA as well as a standard blood draw. It is designed for people with colorectal cancer that has spread to the liver and hasn't responded to treatment.
Rotterdam, South HollandAges 21 years+ - NCT07527793Recruiting
Blood Metabolite Changes with Minimally Invasive Monitoring
This research study measures changes in substances in your blood using small, non-invasive devices. Researchers want to understand how your body's metabolism works in healthy people.
ÖrebroAges 18–65 - NCT06878482RecruitingPhase 4
Botulinum toxin injection for severe leg artery disease
This trial tests whether a single injection of botulinum toxin (a muscle-relaxing substance) into the leg can improve blood flow and help heal wounds in people with severe blocked leg arteries who cannot have standard procedures like angioplasty.
Yongin-si, Gyeonggi-doAges 20 years+ - NCT06840327Recruiting
Oxygen levels during heart bypass surgery and recovery
This study looks at how different oxygen levels during heart bypass surgery might affect recovery. It aims to see if keeping oxygen at a certain level can improve outcomes for people having surgery where a vein from the leg is used to bypass a blocked heart artery.
ToulouseAges 18 years+ - NCT07330635Recruiting
Chronic wounds and blood circulation checkup
This study checks how well blood flows in the legs of people with and without chronic wounds or circulation problems. It may help doctors better understand and treat poor circulation.
TaipeiAges 20–95 - NCT07260370Recruiting
Studying blood markers in cancer patients on immunotherapy
This study looks at tiny particles (microRNA) and cancer cells in the blood of people with cancer who are getting immunotherapy. It aims to find patterns that might help doctors better understand how the treatment is working.
Taoyuan CityAges 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+ - NCT06083948RecruitingPhase 2/Phase 3
Blood pressure medicines and brain blood flow during tumor surgery
This study tests how different blood pressure medicines affect blood flow to the brain and other organs during anesthesia for brain tumor surgery. It aims to find the safest way to keep your brain healthy while you are asleep.
AarhusAges 18–75 - NCT05088395Recruiting
Blood tests to track cancer signals after treatment
This study measures “circulating tumor markers,” meaning substances from cancer that can show up in blood, to better understand how cancer is doing after treatment. You may join if you recently received cancer care at a participating center and meet basic study and follow-up requirements.
ParisAges 18 years+ - 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+ - NCT06396871Recruiting
Blood cell study in metabolic diseases
This study looks at blood cells and factors in people with metabolic diseases like fatty liver, prediabetes, or type 2 diabetes. It aims to better understand these conditions by comparing them with healthy volunteers.
Dresden, SaxonyAges 18 years+ - NCT05743049Recruiting
Collecting blood markers in pancreatic cancer patients
This study collects samples of substances in your blood to learn more about pancreatic cancer. It may help researchers find better ways to track the disease or understand which patients may benefit from future treatments.
Philadelphia, PennsylvaniaAges 18 years+ - NCT04025541Recruiting
Blood tests to study tumor markers
This trial looks at blood samples to measure substances that may reflect cancer (tumor markers). It may help doctors understand cancer better and improve future monitoring, as long as you can safely and regularly take part.
MontpellierAges 18 years+ - NCT04530890Recruiting
Testing blood tumor DNA in digestive and breast cancers
This study looks at a blood test for “circulating tumor DNA” (tiny pieces of cancer-related DNA in the blood). It may help doctors learn more about digestive, gynecologic, or breast cancers and how patients respond when treatment like chemotherapy or immunotherapy is needed.
PoitiersAges 18 years+ - NCT06203496Recruiting
Monitoring brain tumors with blood tests
This trial studies whether a blood test can track the progress of a type of brain tumor called a grade 4 diffuse glioma. It may offer a less invasive way to monitor these tumors after surgery.
CaenAges 18 years+ - NCT05089747Recruiting
Study uses extra blood samples for solid cancer patients
This study looks at how blood can help us better understand solid cancers. You may be able to join if you’re an adult with solid cancer and your usual care already involves taking blood, and you can safely provide samples for the study.
BronAges 18 years+ - NCT07398170Recruiting
Searching for tumor cells in fluid for recurrent meningioma
This study looks for tumor cells in your blood or spinal fluid to see if they can help track aggressive meningiomas that have come back. It may help doctors understand your cancer better and guide future treatments.
Montpellier, FranceAges 18 years+ - NCT06260410Recruiting
Lu-PSMA prostate cancer data study
This study collects information (like scans and blood tests) from men with prostate cancer who are about to start Lu-PSMA therapy. The goal is to track how the cancer responds and learn more about its features during treatment.
Rotterdam, South HollandAges 18 years+ - NCT06629077RecruitingPhase 2
Brain blood vessel response to blood flow changes
This study looks at how blood vessels in the brain react when blood flow changes. It may help researchers understand how the brain adapts with age.
Madison, WisconsinAges 55–69 - NCT03513770RecruitingEarly Phase 1
Testing how the body controls blood pressure and heart rate
This early research trial looks at how your body’s automatic control system manages blood pressure and heart function. You may be asked to undergo tests to measure these responses, and the study aims to understand control of the circulation (blood flow).
Hershey, PennsylvaniaAges 21–35 - NCT04391465Recruiting
Blood flow and heart rate during a heart procedure study
This study looks at how changes in blood flow in the brain relate to heart rate during a specific heart rhythm procedure. It may help doctors better understand how the body’s brain and heart responses connect during temporary pacing.
Calgary, AlbertaAges 18–70 - NCT00353483Recruiting
Testing treatment before or after breast cancer surgery
This trial studies how different cancer treatments given before or after standard therapy affect breast cancer cells in the blood and bone marrow. It may help doctors better understand how treatments work throughout the body, not just where the tumor is.
St Louis, MissouriAges 18 years+ - NCT04520672Recruiting
Blood tests that look for circulating tumor cells in cancer
This study uses blood samples to look for tiny pieces of cancer cells called circulating tumor cells. Your results may help researchers understand how cancer cells spread and how cancer could be monitored over time.
BaselAges 18 years+
Hear when a new Blood Circulation trial opens
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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.