Myocardial ischemia

This study tests a new device (Sphere-9 catheter and Affera system) to treat ventricular tachycardia, a fast, dangerous heart rhythm, in 260 adults who have had a heart attack. Participants must have had repeated episodes despite medication or a defibrillator. The goal is to see …

This study is testing a long version of the Ultimaster Nagomi stent in people with long blockages in their heart arteries. About 1,039 participants will receive the stent and be followed for one year to see if it works well and stays safe. The goal is to see if one long stent can…

This study is checking how well a new drug-coated stent (Coroflex ISAR NEO) works in people with coronary artery disease. Researchers will follow 3,000 patients who get the stent during a routine procedure to see if it keeps arteries open safely. The goal is to confirm the stent …

This study tests whether using a CT scan to guide heart stent placement is better than the current standard (IVUS ultrasound) for people with hardened, calcified coronary arteries. About 700 adults with evidence of reduced blood flow to the heart will be randomly assigned to one …

This pilot study compares two ablation techniques for treating ventricular tachycardia, a fast and dangerous heart rhythm that can occur after a heart attack. Researchers will randomly assign 40 adults with ischemic heart disease and an implantable defibrillator to receive either…

This study is testing a new device called the Sphere-9 catheter, used with the Affera mapping system, to treat ventricular tachycardia (VT) — a fast, dangerous heart rhythm. The procedure uses heat to destroy small areas of scarred heart tissue that cause the abnormal rhythm. The…

This study tests a new device called Freesolve, a temporary magnesium scaffold that props open blocked heart arteries and then dissolves over time. About 1,859 people with up to two new blockages will receive either this scaffold or a standard permanent stent. The goal is to see …

This study tests the drug acalabrutinib in people with chronic lymphocytic leukemia (CLL) who also have moderate to severe heart failure. Researchers want to see if acalabrutinib causes fewer heart-related side effects compared to other standard treatments. About 60 adults will t…

This trial is testing whether a higher dose of adenosine, a drug used during cardiac MRI to stress the heart, improves blood flow imaging compared to the standard dose. The study includes 180 adults with suspected or known coronary artery disease or heart failure. By comparing th…

This study tests a new type of stent (a small mesh tube) for people with heart disease who also take blood thinners. These patients have a high risk of bleeding when they also need anti-clotting drugs after stent placement. The new stent is designed to allow a shorter course of a…

This early study tests a device called the A-FLUX Reducer, which is implanted into a vein in the heart to help blood flow. It is for people with chest pain caused by problems in the heart's tiny blood vessels (microvascular dysfunction). The study will enroll 30 adults and focus …

This study tests a new type of heart stent made from magnesium that slowly dissolves over time. It is designed for people with long blockages in their heart arteries. The goal is to see if the stent is safe and works well at keeping arteries open for up to 12 months. About 100 pa…

This trial tests whether opening a chronically blocked heart artery with a stent (PCI) reduces heart muscle starvation more than medication alone. It includes 48 patients with a total blockage who have significant ischemia on imaging. The study measures changes in ischemia, chest…

This study tests whether using a computer simulation (virtual stenting) before placing stents in heart arteries can lead to better outcomes than the usual method guided by X-ray images alone. About 1,472 adults with coronary artery disease will be randomly assigned to either the …

This early-stage trial tests a new cell therapy for people with heart failure caused by blocked arteries. The treatment uses the patient's own immune cells, engineered to target scar tissue in the heart. The study will check safety and whether it can improve heart function in 15 …

This study tests whether using HEPA air filters at home can slow the progression of heart disease in adults aged 65-84 who have a history of ischemic heart disease. Over 112 participants in Los Angeles will use real or sham filters for several months, and researchers will measure…

This study tests a new medicine called ADR-002K in 50 people with heart failure caused by blocked heart arteries who are scheduled for bypass surgery. The goal is to see if the drug can prevent heart-related events and improve heart function over two years. Participants must have…

This study looks at two ways to treat a fast, dangerous heart rhythm called ventricular tachycardia in people with coronary artery disease and relatively good heart function. One treatment uses a catheter to burn the tiny area causing the problem (radiofrequency ablation), and th…

This study looks at whether the heart medication Camzyos (Mavacamten) can improve blood flow to the heart muscle in people with hypertrophic obstructive cardiomyopathy (HOCM). Researchers will use special PET-CT scans to measure blood flow before and after 12 months of treatment.…

This study tests whether stem cells from umbilical cords can safely improve heart function in people with heart failure due to blocked arteries. Sixty participants will receive either one or two doses of stem cells or a placebo through an IV. The main goal is to see if the heart'…

This study compares two approaches for people with ischemic cardiomyopathy (weak heart muscle due to blocked arteries) and multiple blocked vessels. One group gets optimal medical therapy alone, while the other also gets a heart artery procedure (PCI) guided by imaging and pressu…

This study tests a new device called AMJ-401 in 50 people with ischemic heart disease (blocked heart arteries) in Japan. Participants receive the device during a standard procedure to open blocked arteries. The main goals are to check for acute strut fractures right after the pro…

This study looks at how different types of aerobic exercise affect blood vessel health in people with ischemic heart disease (such as after a heart attack or angina). Researchers will compare high-intensity interval training with short bursts, long bursts, and moderate-intensity …

This study follows 100 people with coronary artery disease who have already been treated with the Essential Pro device. Researchers want to confirm the device is safe and works as intended, meeting new European safety rules. The main goal is to see if the device prevents serious …

This study looks at two ways to treat people with chronic coronary artery disease (narrowed heart arteries). One group gets a special CT scan to find blocked arteries and then receives procedures like stents or bypass surgery. The other group gets only medications and lifestyle a…

This study looks at whether taking just one blood thinner (single antiplatelet therapy) is safer and as effective as taking two (dual antiplatelet therapy) in older adults or those at high risk of bleeding who have had a balloon procedure to open blocked heart arteries. About 576…

This study tests whether injecting stem cells from umbilical cords into the heart during bypass surgery can help repair heart muscle and improve function in people with chronic heart failure. About 51 adults with weak hearts (ejection fraction 40% or less) will take part. The goa…

This study compares two approaches for people with a completely blocked heart artery (chronic total occlusion) that is causing reduced blood flow to the heart muscle. One group will receive a stent to open the blockage, while the other will take medications only. The goal is to s…

This study is tracking 2,000 people with coronary artery disease who receive either a Synergy XD or Synergy Megatron stent during a routine procedure to open blocked heart arteries. Researchers want to see how these stents perform in everyday medical practice compared to other dr…

This study is tracking 508 patients with multivessel coronary artery disease who received the SUPRAFLEX CRUZ stent during routine care. Researchers are monitoring for heart-related events like heart attacks, repeat procedures, and heart function over 12 months. The goal is to con…

This study tests a program called Transition to Cardiac Rehabilitation (T2CR) for Veterans with heart disease who also have other health problems or frailty. The program starts in the hospital and continues at home, helping patients build skills and motivation to do cardiac rehab…

This early-phase study tests whether injecting lab-grown heart cells (made from human embryonic stem cells) can safely improve heart function in 18 adults with chronic heart damage from a past heart attack. Participants receive one of three doses via a catheter, and researchers m…

This study tests whether adding a simple breathing exercise (inspiratory muscle training) to standard cardiac rehab helps people with narrowed heart arteries recover better. 72 adults who had a heart procedure (angioplasty) will be split into two groups: one does standard rehab, …

This study tests whether using an AI tool (Ablation Index) during heart ablation can shorten the procedure for patients with ventricular tachycardia caused by prior heart attacks. About 100 adults with ischemic cardiomyopathy and scar-related VT will be randomly assigned to stand…

This early study tests a new vibrating guidewire designed to open completely blocked heart arteries (chronic total occlusions) in people with chronic chest pain that hasn't improved with standard treatments. The wire vibrates at its tip to help cross the blockage during a procedu…

This study is testing whether taking a statin (atorvastatin) together with an SGLT2 inhibitor (dapagliflozin) helps people with ischemic heart failure. Researchers will measure cholesterol levels and other lab tests in 90 participants. The goal is to see if the combination works …

This study tests a temporary heart pump called iVAC 2L in 100 patients undergoing high-risk angioplasty. The pump helps stabilize blood flow during the procedure. Researchers will track deaths, heart attacks, strokes, and other complications for up to a year to see if the device …

This trial tests whether a 4-electrode tablet-based ECG (DigitalCardio) can record heart activity as quickly and clearly as the standard 10-electrode ECG. About 50 cardiology patients will undergo both methods in random order. Researchers will measure recording time and compare t…

This study is testing a new type of MRI, called hyperpolarized 13C MRI, to see if it can better identify which patients with heart disease will benefit from bypass surgery. The technique measures how the heart produces energy by tracking two simple molecules. Researchers will com…

This study will enroll 1,000 adults aged 35-85 with chest pain or shortness of breath to see if a new, detailed MRI blood flow measurement can more accurately diagnose heart disease than standard MRI. Participants will receive a contrast agent called Gadavist during stress and re…

This phase 2 study tests a new radioactive imaging agent, 18F-mFBG, to measure nerve damage in the hearts of 20 people with stable heart failure and implantable defibrillators (ICDs). The goal is to see if the agent can reveal differences in nerve function between those who have …

This study tests whether a magnetocardiography (MCG) device can detect reduced blood flow to the heart muscle in people with acute chest pain but no major artery blockages. About 3,786 participants will undergo MCG scanning, and results will be compared to a standard ultrasound t…

This study tests an artificial intelligence program that analyzes heart rhythm data from a small, wearable patch to estimate how well the heart pumps blood. Researchers will compare the AI's results to standard ultrasound in 2,000 adults. If accurate, this could offer a simpler, …

This study tests a new computer program that helps doctors diagnose blocked heart arteries more accurately using CT scans. The software combines several checks into one step, which may reduce the need for invasive procedures like heart catheterization. Researchers will look at pa…

This study tests whether artificial intelligence can help doctors interpret echocardiograms (heart ultrasounds) more accurately and quickly. Researchers at Mayo Clinic will deploy AI algorithms to flag signs of genetic cardiomyopathy, ischemic heart disease, and cardiac amyloidos…

This study aims to improve how doctors diagnose a rare heart condition where a coronary artery starts in the wrong place (AAOCA), which can cause sudden cardiac death in young athletes. Researchers will use artificial intelligence and 3D computer models to analyze CT scans and pr…

This study is testing a new smartphone-connected 12-lead ECG device to see if it can accurately diagnose heart attacks (STEMI and NSTEMI) in people with chest pain. Researchers will compare the smartphone ECG readings to standard hospital ECGs in 1000 adults. The goal is to valid…

This study tests new, faster MRI techniques to get detailed images of the heart muscle in people with heart conditions like cardiomyopathy, myocarditis, and ischemic heart disease. The goal is to improve diagnosis and treatment planning. About 240 adults who already need a heart …

This study is testing whether a special heart scan (SPECT) can detect problems in the heart's smallest blood vessels, called microvascular dysfunction. Researchers will measure how the heart muscle moves and pumps blood in 75 people with and without coronary artery disease. The g…

This study looks at whether giving a carbohydrate drink before coronary artery bypass surgery can improve insulin sensitivity and recovery in people with type 2 diabetes. About 50 participants will be enrolled. The goal is to see if this simple step can reduce complications and s…

This trial tests whether combining several regional nerve blocks can improve pain control and recovery in people undergoing off-pump coronary artery bypass surgery. Participants receive either a combination of local anesthetic injections or a placebo, and researchers measure how …

This study tests an online psychological program called MY-CHOICE for adults with ischemic heart disease who also have anxiety or depression. The program offers personalized online modules and therapist calls over 6-12 weeks. Researchers want to see if patients find it acceptable…

This study tests whether adding extra support—like booster sessions and a website—to an 8-week telephone mindfulness program can better reduce stress, anxiety, and depression in people with heart disease or risk factors. Researchers will compare different program options in 160 a…

This study compares two common types of heart medications—beta-blockers and calcium channel blockers—in adults aged 65 and older who have stable angina (chest pain) and at least two other chronic conditions. The goal is to see which drug works better and is easier to tolerate, fo…

This study is testing a new type of MRI scan that looks at how the heart uses energy. It involves 15 people: 6 healthy volunteers and 9 patients with severe heart disease who are scheduled for bypass surgery. The goal is to see if this new scan can better measure heart muscle hea…

Researchers are following 10,000 registered nurses in Xiamen, China, to see how genes, lifestyle, and environment relate to common chronic diseases like high blood pressure, heart disease, stroke, diabetes, kidney disease, and some cancers. The study collects health and lifestyle…

This study is testing a new bedside device called CardiAQ MCG that measures the heart's magnetic fields to detect blocked arteries (ischemia). Researchers will enroll 150 adults scheduled for heart catheterization to see if the device can accurately predict heart attack status. T…

This study will test new MRI methods to find early signs of heart disease in 1000 adults. Researchers want to see if these scans can detect tiny changes in heart muscle before standard tests do. Participants will have MRI scans and blood work, but no treatment is given. The goal …

This study is testing a comprehensive MRI scan to see if it can better diagnose different heart conditions. Researchers will scan 2,000 adults with suspected or confirmed heart disease. The goal is to create a standard imaging method that improves early detection and risk predict…

This study tests whether a machine learning model can predict the outcome of a common heart procedure — placing a stent to open a hardened, calcified artery. Researchers will measure blood flow and pressure before and after the procedure in 100 adults with coronary artery disease…

This study uses a special catheter to record detailed electrical signals from the heart during a standard procedure for dangerous heart rhythms (ventricular tachycardia). Researchers aim to better understand why these rhythms start and how to pinpoint the exact trouble spots. Ten…

This study looks at 60 people with stable angina who have two blocked heart arteries. During a procedure, doctors will temporarily inflate a tiny balloon inside each stent to reduce blood flow while the patient exercises on a bike. The goal is to measure exactly how much flow red…

This study looks at 300 people with rapid atrial fibrillation (a fast, irregular heartbeat) to understand why some have heart damage. Researchers will use blood tests and heart scans to see if blocked arteries are the cause. The goal is to improve how doctors diagnose and manage …

This study is a large registry that will collect information from 10,000 adults who undergo exercise echocardiography (a heart ultrasound during exercise) as part of their regular care. The goal is to better understand how the heart works during exercise in people with various he…

This observational study will enroll 10,000 adults who are already scheduled for a cardiac CT scan. Researchers will use artificial intelligence to analyze the scans, looking for subtle signs of dangerous plaque that might predict future heart attacks. Participants will also give…

This study is not testing a new drug or treatment. Instead, researchers want to make sure their lab tests and equipment give accurate and repeatable results when studying conditions like obesity, diabetes, heart disease, and bone loss. Up to 100 healthy volunteers and people with…

This study will use a new type of cardiac MRI to look at the heart's microscopic structure in 1,000 people—both healthy volunteers and those with various heart conditions. The goal is to see if this advanced imaging can detect early signs of heart damage better than standard test…

This study is testing a drug called regadenoson in children who need a special heart MRI. The drug helps doctors see how well blood flows to the heart during a stress test. Researchers want to find the right dose and make sure it is safe for kids of different ages, from infants t…

This study looks at whether a common heart procedure (using the wrist artery) can damage nerves in the hand. Researchers will check 400 patients for signs of carpal tunnel syndrome or other nerve problems. The goal is to understand the risks better, not to test a new treatment.

This study will use advanced heart MRI scans on up to 100,000 people with known or suspected heart disease. The goal is to learn how these scans can help doctors better understand, diagnose, and treat different heart conditions. Researchers will track participants' health over ti…

This study looks at people who have chest pain but no major blockages in their heart arteries. Researchers will test if giving medication based on the specific type of tiny blood vessel problem (endotype) works better than standard care. About 180 participants will be followed fo…

This study looks at people with chest pain (angina) but no major blockages in their heart arteries. During a standard angiogram, doctors will perform an extra diagnostic test to see if it helps guide treatment. Half the participants will have the test results shared with their do…

This study follows 30,000 adults with coronary artery disease to see how different risk factors affect their long-term survival. Researchers will track deaths from any cause and from heart problems specifically. The goal is to better understand what influences outcomes in real-wo…

This study follows 2000 adults with suspected heart artery disease who undergo special imaging and pressure measurements during a heart catheterization. Researchers want to see which test results best predict future heart problems like heart attacks or the need for another proced…

This study tests a special MRI that can show how heart cells process energy in people with ischemic heart disease. About 15 adults with chronic heart failure will get this scan along with standard tests. The goal is to see if this new method can tell healthy from damaged heart ti…

This study aims to improve how doctors interpret stress echocardiograms—ultrasounds of the heart during exercise—by using machine learning. Researchers will analyze data from 1,250 patients to develop more accurate tools for detecting blocked arteries and heart attack risk. The g…

This study tests a dynamic coronary roadmap system that helps doctors guide a pressure wire into narrowed heart arteries. 226 patients with ischemic heart disease will be randomly assigned to have the procedure with or without the roadmap. The main goal is to see if the roadmap r…

This study looks at whether a special heart MRI can help predict future heart attacks, strokes, or other serious heart problems in people with ischemic heart disease. Researchers will review medical records from 1,000 adults who have already had this MRI. The goal is to better un…

This study looks at whether a follow-up CT scan of the heart's arteries (coronary CT angiography) one year after stent placement can reduce major heart problems like heart attacks or death compared to usual care. It will enroll 3,500 high-risk patients who have had stents placed …

This study looks at 570 people with chronic coronary syndrome (chest pain or shortness of breath due to narrowed heart arteries). Participants with abnormal blood flow on a PET scan will be randomly assigned to either immediate heart catheterization or a 3-month delay, while both…

This study is testing a mobile app called GeriKit to gather more information about older adults (75+) with ischemic heart disease. Researchers want to see if the app helps them better understand patients' health and outcomes, like hospital readmission or quality of life. About 15…

This study is checking if a blood test called high-sensitive troponin I can detect heart damage in people having leg surgery with a nerve block. Researchers will measure troponin levels during surgery and at 24 and 48 hours after. The goal is to see if this test can help predict …

This study is tracking 1,000 adults with psoriasis to see how their skin condition relates to heart disease. Researchers will use blood tests and heart imaging to find early signs of heart problems. The goal is to better understand why people with psoriasis have higher rates of h…

This study looks at how modern, minimally invasive lung cancer surgery affects the heart's electrical signals. Researchers will monitor 100 adults before, during, and after surgery to see if temporary changes occur. The goal is to better understand the heart stress caused by the …