Cardiology
Heart & circulation clinical trials
Heart disease, blood pressure, and disorders of the blood vessels and circulation. We’re tracking 9,989 recruiting studies in this area right now.
By phase
- Not applicable7,969
- Phase 2481
- Phase 4481
- Phase 3447
- Phase 1361
- Phase 1/Phase 2163
- Phase 2/Phase 387
Top conditions
- Stroke845
- Heart Failure564
- Hypertension400
- Cardiovascular Diseases389
- Coronary Artery Disease370
- Multiple Myeloma332
- Atrial Fibrillation267
- Ischemic Stroke200
- Atrial Fibrillation (AF)141
- Acute Ischemic Stroke139
- Pulmonary Hypertension100
- Myocardial Infarction99
- Congenital Heart Disease86
- Stroke, Ischemic85
- Peripheral Arterial Disease83
- Acute Coronary Syndrome82
- Obesity80
- Aortic Valve Stenosis79
Leading sponsors
- Mayo Clinic94
- Assistance Publique - Hôpitaux de Paris91
- National Taiwan University Hospital74
- China National Center for Cardiovascular Diseases59
- Beijing Tiantan Hospital52
- Riphah International University51
- Second Affiliated Hospital, School of Medicine, Zhejiang University51
- Massachusetts General Hospital50
- Insel Gruppe AG, University Hospital Bern49
- Johns Hopkins University47
Where studies are running
- California466
- Alabama197
- Massachusetts182
- Arizona173
- New York162
- Florida144
- Maryland120
- Minnesota120
- Illinois119
- Texas118
Recruiting studies9,986 total
- NCT05339477Recruiting
Study of activity after a heart attack
This study follows people after a type 1 heart attack to see how physical activity relates to recovery. It may help doctors understand what activity patterns are best after hospitalization.
AlingsåsAges 18–79 - NCT05340023Recruiting
Test using lung scan patterns to diagnose a heart-lung condition
This study looks at patterns from specialized lung scan tests to help diagnose chronic thromboembolic pulmonary hypertension (a long-term problem with blood flow in the lungs after blood clots). If your results suggest this condition and you need a procedure to check heart pressure, you may be asked to join so the researchers can improve diagnosis.
Saint-EtienneAges 18 years+ - NCT05340582RecruitingPhase 2
Ibuprofen plus acetaminophen for a heart condition in very premature babies
This Phase 2 study tests whether giving ibuprofen together with acetaminophen improves outcomes for an important heart connection (PDA) in extremely premature infants. It compares how this medicine approach affects the baby’s heart-related measurements and short-term progress.
Newcastle, New South WalesAges Up to 6 months - NCT05344833RecruitingPhase 2
Isatuximab and lenalidomide after transplant for myeloma
This Phase 2 study tests whether adding isatuximab and lenalidomide after an autologous stem cell transplant can keep multiple myeloma from coming back when tests show leftover (minimal) disease. If it works, it may improve how long you stay in response.
Chicago, IllinoisAges 18 years+ - NCT05346068Recruiting
Compare two balloon types for calcium-heavy blocked heart arteries
This trial studies whether one type of balloon works better than another for treating badly calcified (hardened) coronary artery blockages. If you qualify, you would be randomly assigned to get the tested balloon treatment during your heart procedure.
LucerneAges 18 years+ - NCT05347069RecruitingPhase 4
Aspirin study for people with stable heart artery disease
This trial tests whether daily aspirin is safe and effective for people who have stable (chronic) coronary artery disease but cannot have procedures to open blocked arteries. It may help reduce future heart problems, while also checking for side effects and risks from aspirin.
KyotoAges 20 years+ - NCT05347732Recruiting
Finds why heart clot treatment may not work
This study looks at people with a specific type of heart attack who received clot-busting treatment before reaching the hospital. It aims to figure out what predicts why the treatment might fail, which could help improve care in the future.
OsloAges 18 years+ - NCT05347875Recruiting
App training to improve walking aid skills
This trial tests an app-based program meant to help people who already use walking aids learn and practice safer walking aid skills. It may help you move more comfortably if you can use the app and communicate with the study team.
Calgary, AlbertaAges 18–99 - NCT05348564Recruiting
Family genetic screening methods for heart rhythm risk
This study compares two ways to find relatives who may carry a specific inherited genetic change. It may help your family learn faster who should get follow-up testing and care.
Lancaster, PennsylvaniaAges 18 years+ - NCT05349955Recruiting
Primary care diabetes guideline program for older adults
This trial tests whether a diabetes treatment plan (based on published guidelines) delivered by primary care doctors in the community is safe and helpful for older adults. It focuses on people with type 2 diabetes who also have kidney problems and/or higher heart and blood-vessel risk.
Suzhou, JaingsuAges 65 years+ - NCT05353140Recruiting
Left atrial appendage device vs blood thinners after stent
This trial compares a heart device that can help prevent blood clots in the heart (called LAAO) versus long-term blood thinners for people who have atrial fibrillation and recently had a stent placed. It aims to see which approach better prevents stroke and related blood-clot problems while keeping side effects manageable.
Xi'an, ShannxiAges 18 years+ - NCT05353946Recruiting
Rotational atherectomy elective vs emergency for heavily calcified blockages
This trial compares doing a special procedure (rotational atherectomy) before an emergency is needed versus using it as a rescue during a heart artery procedure. It is designed for people with very hard, calcified artery blockages and long-term kidney impairment, to see which approach works better and is safer.
MadridAges 18–100 - NCT05355831Recruiting
Customized brain stimulation to help stroke recovery
This trial tests whether carefully targeted, noninvasive electrical stimulation of the brain can improve arm and overall recovery after an ischemic stroke. It may help by supporting brain relearning during the first weeks after stroke.
CopenhagenAges 18 years+ - NCT05356104RecruitingPhase 2
GLP-1 treatment to slow small blood-vessel brain damage
This Phase 2 study tests whether a GLP-1–like medicine can slow worsening “small vessel” disease changes in the brain and related walking and thinking problems. It aims to see if the treatment can prevent progression in people who already show early brain changes on MRI.
Wenzhou, ZhejiangAges 55–80 - NCT05361811Recruiting
Therapy coaching for parents of children with rare genetic syndromes
This trial tests an “Acceptance and Commitment Therapy” program for parents or legal guardians who feel moderate parenting stress. It aims to help caregivers cope in healthier ways and may also improve how they manage stress while supporting their child.
Bethesda, MarylandAges 18 years+ - NCT05361694Recruiting
Study aims to distinguish stable vs worsening early myeloma
This study looks at two different “precursor” conditions that can happen before multiple myeloma: MGUS and smoldering myeloma (SMM). Researchers want to better tell which cases are more likely to progress, using blood/urine tests and sometimes bone marrow tissue.
Miami, FloridaAges 18 years+ - NCT05363111RecruitingPhase 1
Testing a targeted radioactive drug for relapsed myeloma
This Phase 1 study tests a targeted radioactive medicine made from daratumumab plus a radioactive payload, aiming to treat multiple myeloma that has come back or doesn’t respond to treatment. It’s designed mainly to check safety and how the treatment works in people who have had several prior therapies.
Duarte, CaliforniaAges 18 years+ - NCT05363397RecruitingPhase 2
Adjunctive TBO-309 added to stroke clot removal treatment safety
This Phase 2 trial studies whether adding TBO-309 to standard emergency treatment for acute ischemic stroke is safe and tolerable. It may help researchers see if the added drug can be given without causing excessive side effects alongside clot-busting and/or clot-removal procedures.
Camperdown, New South WalesAges 18 years+ - NCT05363761RecruitingPhase 1
Artery procedure to treat type 2 diabetes and related problems
This Phase 1 study tests a new artery “ablation” procedure for people with type 2 diabetes, aiming to improve diabetes and related conditions like high blood pressure. It will also check whether the procedure is safe and works well enough to study further.
Panama CityAges 21–65 - NCT05363748Recruiting
Kidney artery fibromuscular dysplasia registry for patients
This registry collects information from people diagnosed with kidney artery fibromuscular dysplasia (or certain similar, “atypical” cases). It helps doctors better understand patterns of the condition and may guide future research and care.
Shanghai, Shanghai MunicipalityAges Any age - NCT05364749Recruiting
CT scan approach for people on blood thinners after head injury
This trial looks at a more targeted CT scan plan for people who are on blood thinners and have a head injury. It may help doctors decide who needs imaging right away and how to keep care safe and efficient.
Vancouver, British ColumbiaAges 16 years+ - NCT05365282Recruiting
Check how a wrist artery procedure affects hand nerve symptoms
This study looks at whether a procedure on an artery in the wrist is linked to new or worsening nerve symptoms in the hand. It may help doctors understand who is at higher or lower risk and improve safety.
AarhusAges 18 years+ - NCT05364892Recruiting
Biobank study for ANCA-associated vasculitis patients
This study collects and stores health information and possibly samples from people diagnosed with ANCA-associated vasculitis to help researchers learn more about the disease. It may help future studies, but it is mainly focused on collection rather than testing a new treatment.
Brest, BrestAges 18–99 - NCT05365438RecruitingPhase 4
Atorvastatin plus omega-3 for artery plaque in type 2 diabetes
This trial studies whether a combination of atorvastatin and omega-3 can reduce signs of artery plaque in people with type 2 diabetes and “mixed” cholesterol problems. It’s focused on people who don’t have symptoms from plaque yet.
Seongnam-si, Gyeonggi-doAges 20–80
Common questions
- How many heart & circulation clinical trials are recruiting?
- Clin2 is tracking 9,989 recruiting cardiology studies from the U.S. registry right now, out of 15,300 we cover in this area in total.
- What does “Heart & circulation” cover here?
- Heart disease, blood pressure, and disorders of the blood vessels and circulation. We group each study into heart & circulation based on the conditions it studies, so you can scan the whole therapeutic area at once and drill into a specific condition.
- How do I find a heart & circulation trial near me?
- Use the search to filter heart & circulation studies by location and eligibility. Every Clin2 trial page explains the criteria in plain English and offers a short, optional pre-screen for a fit read — the study team makes the final decision.
Other specialties
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Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov; specialty groupings are derived from each study’s conditions. Talk with your doctor about whether a specific trial is right for you.