Clinical trials
Microvascular Function clinical trials
Below are recruiting microvascular function clinical trials, each written for real people, not researchers. We’re tracking 25 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06169241RecruitingEarly Phase 1
Nitrate supplement for resistant hypertension
This trial tests whether a natural nitrate supplement (like beetroot juice) can help lower blood pressure and improve blood vessel function in people with resistant hypertension. If you have resistant hypertension and your medications have been stable for at least 30 days, you may be eligible.
Rio de JaneiroAges 18–75 - NCT05653973RecruitingEarly Phase 1
Testing aspirin’s effects on blood vessel function after pregnancy
This early study looks at how taking aspirin (or not) affects how well blood vessels work after pregnancy. It may help researchers understand differences in vascular health after normal pregnancies versus preeclampsia (a pregnancy blood pressure complication).
Iowa City, IowaAges 18–50 - NCT04612322Recruiting
Study registry for microvascular angina patients
This registry study collects information from adults with microvascular angina (chest pain from small blood vessels in the heart). It may help researchers better understand how to assess and manage this condition over time.
Mainz, RLPAges 18–85 - NCT06583785Recruiting
Black rice and brain health in older adults
This study tests whether eating black rice can help with memory, thinking, and overall health in older adults. The researchers want to see if black rice reduces inflammation and improves blood vessel function, which can benefit the brain and body.
Reading, UKAges 50–80 - NCT06579677Recruiting
Watching small blood vessels in the brain over time
This study watches how small blood vessels in the brain change over time. It may help doctors understand brain health as people age.
Beijing, Beijing MunicipalityAges 50–75 - NCT06867198Recruiting
Peanuts for heart, brain, and gut health
This study tests whether eating peanuts can improve health markers like blood sugar, brain function, and digestion in adults with prediabetes (higher than normal blood sugar levels). You may qualify if you are between 20-59 years old, have prediabetes, and a BMI in the overweight to obese range.
Atlanta, GeorgiaAges 20–59 - NCT06089031Recruiting
Belgian registry for coronary function testing
This study collects information from people having tests to check how well the blood vessels in the heart work. It helps doctors learn more about these tests and improve care for future patients.
Deurne, AntwerpAges 18 years+ - NCT05178914Recruiting
Testing heart pain treatment guided by blood-flow measurements
This study looks at how to personalize treatment for people with angina (chest pain) by measuring how well blood flows through the heart’s small vessels and the main arteries during a procedure. It may help doctors choose the right approach after your coronary angiography (heart artery imaging).
La TroncheAges 18 years+ - NCT06735651Recruiting
Wild blueberries for gut, brain, and heart health in prediabetes
This study looks at whether eating wild blueberries can improve your gut health, brain function, and heart health if you have prediabetes. It may help lower your blood sugar and reduce your risk for diabetes and heart disease.
Atlanta, GeorgiaAges 20–65 - NCT07222683Recruiting
How kidney transplant affects heart blood vessel health
This study looks at how receiving a kidney transplant changes the health of small blood vessels in the heart. It may help people with advanced kidney disease understand the benefits of transplant on their heart health.
Boston, MassachusettsAges 18 years+ - NCT07453381Recruiting
New catheter to check small heart vessels in people with chest pain
This trial tests a special wireless pressure catheter to see how well the tiny blood vessels in the heart are working. It may help people who have chest pain but don't have major blockages in their main heart arteries.
Beijing, Beijing MunicipalityAges 18 years+ - NCT06735599Recruiting
Wild blueberries for blood pressure health
This study tests whether eating wild blueberries can improve your gut, brain, and heart health if you have high blood pressure. You'll eat blueberries daily for several weeks and have checkups to see how your body responds.
Atlanta, GeorgiaAges 45–65 - NCT02798731Recruiting
Testing blood vessel function after a heart transplant
This trial measures how well tiny blood vessels in the heart are working in people who have had a heart transplant. It may help doctors understand transplant-related circulation problems and guide future care.
SeoulAges 18–85 - NCT05593055RecruitingPhase 4
Test a heart and blood-pressure therapy in people with hypertension
This study looks at how mineralocorticoid-related hormone signaling affects small heart blood vessels and how efficiently the heart works in people with high blood pressure. It may help doctors understand which treatments could improve heart function in hypertension.
Boston, MassachusettsAges 18–75 - NCT05762952RecruitingPhase 1
Dapagliflozin study for heart micro-blood-flow symptoms in women
This early-phase study tests whether dapagliflozin can improve tiny blood-vessel function in women who have heart-ache-like symptoms but no major blockage on heart scans. If it works, it may help symptoms related to “microvascular” heart circulation problems.
Charlottesville, VirginiaAges 18–99 - NCT02798705Recruiting
Testing heart tiny blood vessel function in amyloidosis
This study measures how well the heart’s tiny blood vessels work in people with cardiac amyloidosis, using special heart testing. It may help doctors understand the disease better and improve how patients are evaluated over time.
SeoulAges 18–85 - NCT07498231Recruiting
Small heart vessel study for chest pain
This study looks at the tiny blood vessels in your heart (the microcirculation) that can cause chest pain even when the main arteries are open. It aims to better understand and treat this type of chest pain, called chronic coronary syndrome.
BialystokAges 18–75 - NCT06930495Enrolling by invitation
Weight loss and heart failure with normal pumping strength
This study tests whether weight loss treatments can improve muscle and blood vessel function in people with a specific type of heart failure (HFpEF) who also have obesity. It may help if you have heart failure with a normal ejection fraction and a high BMI.
Dallas, TexasAges 18 years+ - NCT06319339RecruitingEarly Phase 1
Studying a drug to improve walking in peripheral artery disease
This trial tests whether a drug called diroximel fumarate (Vumerity) can improve blood flow and walking ability in people with peripheral artery disease (PAD). It compares people with PAD to healthy volunteers of the same age.
Omaha, NebraskaAges 50–75 - NCT06782139RecruitingPhase 4
Enavogliflozin for heart health in obesity and diabetes
This trial tests if Enavogliflozin, a medication for diabetes, can improve blood flow in the small vessels of the heart and overall heart function in people with obesity or diabetes. You may join if you have obesity or diabetes and have had a recent heart test.
SeoulAges 20–79 - NCT06083155Enrolling by invitation
Dutch registry of coronary function tests
This study collects information from people who are already scheduled for a coronary function test, to learn more about heart vessel health. By joining, you help researchers understand patterns and improve care for others.
Nijmegen, GelderlandAges Any age - NCT05051072Recruiting
MRI study in adults with trigeminal neuralgia pain
This study uses a special MRI scan to look at how the trigeminal nerve system is working in people with essential trigeminal neuralgia (face pain) and whether there is nerve involvement. You may be asked to get MRI scans while resting, which can help doctors better understand the cause and guide future treatments.
ParisAges 18 years+ - NCT06243653Recruiting
Heart microvessel function test for heart failure recovery
This trial looks at how tiny blood vessels in the heart affect improvement in heart pumping strength for people with heart failure. It tests whether a special procedure during heart catheterization can predict recovery.
SeoulAges 19 years+ - NCT05946785RecruitingEarly Phase 1
Study of blood-vessel changes after gestational diabetes
This early-stage study looks at how “oxidative stress” (cell damage from stress molecules) may affect small blood vessels after pregnancy, especially in people who had gestational diabetes. The goal is to better understand what’s going on and whether these changes could be linked to future health risks.
Iowa City, IowaAges 18–50
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Microvascular Function trials by city
Studies with a site in or near these metro areas.
Microvascular Function trials by state
Studies with a site anywhere in these states.
Common questions
- Are there clinical trials for microvascular function?
- Yes. Clin2 currently lists 25 recruiting microvascular function 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 microvascular function 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 microvascular function 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.