Clinical trials
Blood Flow clinical trials
Below are recruiting blood flow clinical trials, each written for real people, not researchers. We’re tracking 190 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07063732Recruiting
Ketone drink, high altitude, and brain blood flow during exercise
This trial tests whether a ketone monoester supplement affects brain blood flow and exercise performance at high altitude. It may help us understand how to support brain function during altitude exposure.
Bishop, CaliforniaAges 18–35 - NCT07043127Recruiting
Strength training after hip replacement with blood flow restriction
This trial tests a new kind of physical therapy after hip replacement. It combines strength exercises with a special technique called blood flow restriction to see if it helps you recover muscle strength faster.
Bonn, North Rhine-WestphaliaAges 18 years+ - NCT07521111Recruiting
Stomach Blood Flow and Feeding Tolerance in Critical Illness
This study examines whether measuring blood flow in the stomach using ultrasound can predict which hospitalized patients will struggle to tolerate tube feeding. Researchers hope this simple test might help doctors adjust feeding plans earlier and improve patient outcomes.
ShanghaiAges 18 years+ - NCT07470190Recruiting
Shoulder tendonitis treatments: ultrasound and movement study
This trial compares different physical therapy combinations for people with shoulder tendonitis (supraspinatus tendinitis). It uses ultrasound and motion tests to see how well the treatments work.
Lahore, Punjab ProvinceAges 40–60 - NCT05954832Recruiting
Monitoring heart function and blood flow during general anesthesia
This study checks how heart function and blood flow change in adults while they receive general anesthesia for surgery. It may help doctors better understand what happens to the heart during anesthesia and adjust care for safety.
New York, New YorkAges 18 years+ - NCT07338695Enrolling by invitation
Light therapy’s effect on blood flow in healthy adults
This study tests if shining a specific type of light on your skin can improve blood flow in tiny blood vessels. You'll come in for two sessions where we apply different light wavelengths and measure your skin’s response.
Tel AvivAges 20–75 - NCT05115890Recruiting
Testing blood-flow control in heart failure with preserved pumping
This study looks at how well blood flow is regulated in people with HFpEF, a type of heart failure where the heart squeezes normally but doesn’t fill properly. It may help researchers understand the cause of symptoms and how to improve treatment strategies.
Salt Lake City, UtahAges 18 years+ - NCT07177781Recruiting
Blueberries and brain function in older adults
This study tests whether eating wild blueberries every day for several weeks can improve brain function in people ages 60 to 75 who are overweight or obese. You'll eat blueberry powder or a placebo and have memory and thinking tests before and after.
Maastricht, LimburgAges 60–75 - NCT07223645Recruiting
Handgrip exercise and brain blood flow in young adults
This study tests whether a simple handgrip exercise program can improve blood flow regulation to the brain in young adults who are not very active. Participants will do handgrip exercises at home using a mobile app to track their progress.
Tallahassee, FloridaAges 18–35 - NCT07001943Recruiting
Blood flow in stomach and gut injury in ICU patients
This trial checks if changes in blood flow to the stomach and intestines can predict gut injury in critically ill patients who need feeding through a tube. It uses a safe ultrasound test at the bedside.
Beijing, Beijing MunicipalityAges 18–80 - NCT07057245Recruiting
Protein supplement and brain function in older adults
This study tests whether taking a daily protein supplement can improve how your brain works. It is for healthy older adults (ages 60–75) who are overweight but do not have diabetes or take certain medications.
Maastricht, LimburgAges 60–75 - NCT06642532Recruiting
Using ultrasound to check brain blood flow after skull repair
This study uses a special ultrasound test to see how blood flow in the brain changes after you have surgery to replace a piece of your skull with a PEEK implant. It may help doctors understand if the surgery affects blood flow.
Shanghai, Shanghai MunicipalityAges 18 years+ - NCT06254794Recruiting
Blood flow restriction rehab after Achilles tendon repair
This study tests whether adding blood flow restriction (BFR) to standard physical therapy helps people recover better after Achilles tendon repair surgery. You may be a good fit if you had a PARS or open repair and plan to rehab at a Methodist Hospital.
Houston, TexasAges 18 years+ - NCT07611526Recruiting
How Your Body Responds to Special Exercise After Knee Surgery
This study looks at how tired your leg muscles get during a new type of exercise training (called blood flow restriction training) after knee replacement surgery. The goal is to understand how this training affects your recovery and strength.
Bonn, North Rhine-WestphaliaAges 18–85 - NCT05944146Recruiting
Tests two methods for measuring heart blood flow during surgery
This trial compares a neck ultrasound test (carotid Doppler) with a heart monitoring method (thermodilution) to see if they give consistent blood-flow readings. It may help clinicians measure circulation more reliably in people having heart surgery.
Shanghai, Shanghai MunicipalityAges 18–80 - NCT07232511Recruiting
Cuff-assisted exercise for shoulder pain
This study tests whether using a blood pressure cuff during gentle shoulder exercises can help reduce pain and improve movement. It is for people with ongoing shoulder pain related to the rotator cuff (the muscles and tendons that help lift and rotate your arm).
Valencia, ValenciaAges 18–65 - NCT07422220Recruiting
Walnuts and brain health: a long-term study
This study tests whether eating walnuts every day for a long time can help keep your brain healthy as you age. It is for middle-aged and older adults who carry extra weight around their belly but are otherwise generally healthy.
Maastricht, LimburgAges 45–75 - NCT07722910Recruiting
Iris blood flow in diabetic neovascular glaucoma
This study uses a special camera (OCTA) to look at blood flow in the iris of people with or without type 2 diabetes and diabetic neovascular glaucoma. The goal is to understand how blood flow changes in this eye condition.
Jinan, ShandongAges 18 years+ - NCT07710859Enrolling by invitation
Exercise with blood flow restriction: concentric vs eccentric
This study compares two types of exercise (concentric and eccentric) when combined with blood flow restriction. It aims to see which is more effective for inactive young adults.
Karabük, Karabük ProvinceAges 18–35 - NCT03107520RecruitingEarly Phase 1
Ultrasound during hip surgery to check blood flow
This early-phase study tests a special ultrasound with an added contrast medicine (Lumason) during surgery for babies with developmental dysplasia of the hip (DDH). It aims to better see blood flow at the time of surgery, which may help guide and improve care.
Philadelphia, PennsylvaniaAges 4 months–2 years - NCT03981640Recruiting
Study how kidney blood flow changes during exercise
This study looks at how blood flow to the kidneys responds when you exercise. Researchers hope the results can help better understand differences in kidney circulation during activity in African American and White adults.
Boston, MassachusettsAges 18–35 - NCT04149977Recruiting
Blood flow restriction therapy for knee tendon injuries
This study tests whether blood flow restriction therapy can help healing and recovery after certain knee extensor injuries (like patella or quadriceps tendon rupture). You must be able to take part in the usual physical therapy plan, too.
New York, New YorkAges 18–65 - NCT04390035Recruiting
Blood-flow training after ACL surgery for teens
This trial looks at whether a special exercise method that changes blood flow during physical therapy (called BFRT) can improve recovery after ACL reconstruction in teens. It may help strength and rehab progress, but you would need to meet several surgery and safety requirements and attend many PT visits.
Atlanta, GeorgiaAges 12–18 - NCT04442451Recruiting
Study how fatigue happens in prediabetes and type 2 diabetes
This study looks at why people with prediabetes or type 2 diabetes may feel unusually tired during activities. You may be asked to do exercise testing and answer questions to help researchers understand the body changes behind fatigue.
Ann Arbor, MichiganAges 30–85
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Common questions
- Are there clinical trials for blood flow?
- Yes. Clin2 currently lists 190 recruiting blood flow 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 flow 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 flow 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.