Heart failure

This study compares a newer pacing method (Left Bundle Branch Area Pacing) with the standard cardiac resynchronization therapy for people with heart failure. About 850 adults with moderate to severe heart failure will take part. The goal is to see if the newer method reduces deat…

This early study tests whether a second infusion of a patient's own modified immune cells (CAR-DC) is safe and can improve heart function in 5 adults with end-stage dilated cardiomyopathy. Participants had already received one dose but saw their heart function worsen again. The g…

This phase 3 trial tests whether maridebart cafraglutide (MariTide) can reduce heart failure events like hospitalizations and urgent visits in people with obesity and a specific type of heart failure (preserved or mildly reduced ejection fraction). About 5,056 participants will r…

This study looks at whether a hybrid care pathway that includes home telemonitoring helps people with heart failure spend more days at home and out of the hospital. Participants measure their weight, blood pressure, heart rate, and symptoms daily, sending the data to a medical ce…

This study looks at whether changing from standard heart failure medications to a newer drug (sacubitril-valsartan) can improve the health and daily life of people with heart failure in rural Tanzania. About 298 adults with heart failure will be switched to the new drug and follo…

This study tests whether a pacemaker plus a heart ablation procedure is better than standard medications for controlling heart rate in 600 people with both atrial fibrillation and heart failure. Participants will either get a pacemaker implant and ablation, or continue with optim…

This study tests a new medicine called NNC0487-0111 in about 5,600 people who have both heart failure and obesity. Participants receive either the drug or a placebo as a weekly injection. The goal is to see if the drug reduces the risk of heart failure worsening, hospitalization,…

This early-stage trial tests a one-time gene therapy called RP-A701 in 8 adults with dilated cardiomyopathy caused by a faulty BAG3 gene. The therapy uses a harmless virus to deliver a working copy of the gene, aiming to improve heart function. The main goal is to check safety, b…

This study tests whether a digital support program (called DEEPER) helps heart patients maintain their health after completing cardiac rehab. About 306 adults with heart disease or heart failure will be split into two groups: one gets standard follow-up care, the other gets stand…

This study tests a device that automatically measures foot swelling in people with chronic heart failure. The device sends alerts to healthcare teams if swelling increases, which could signal worsening heart failure. About 1,500 participants will use the device at home for at lea…

This study tests whether a small wireless sensor placed in the pulmonary artery can help doctors better manage medications for people with heart failure and a leaky mitral valve. The sensor constantly measures pressure inside the heart, giving doctors real-time data to adjust tre…

This study tests the long-term safety of finerenone, a medicine that may help the heart pump better by reducing inflammation and scarring. It is for children from birth to 18 years old with heart failure and a weak left ventricle. All participants will take finerenone along with …

This study tests whether a pacemaker programmed to each person's needs can improve symptoms and outcomes for people with a common type of heart failure (HFpEF). About 700 adults with heart failure but normal pumping strength will receive either personalized pacing or minimal/no p…

This study tests a device called Barostim that is implanted in the body to stimulate blood pressure sensors, which may help the heart work better. It involves 58 adults with heart failure who are already on the best available medications. The goal is to see if the device improves…

This trial tests a small sensor placed in the pulmonary artery (the blood vessel from the heart to the lungs) that wirelessly sends daily pressure readings to doctors. The goal is to help people with moderate heart failure (NYHA Class II or III) manage their condition at home and…

This trial tests whether a structured physical rehabilitation and exercise program can help older adults (age 60+) who have been hospitalized for heart failure with preserved ejection fraction (HFpEF). Participants will receive a progressive, multi-domain rehab intervention after…

This study tests whether a drug called enavogliflozin can prevent major heart problems or worsening heart failure in people who have had a heart valve replacement (TAVR) and still have heart failure. About 1,040 participants will receive either the drug or a placebo, in addition …

This study tests a small implanted device that sends gentle electrical signals to strengthen heart contractions in people with heart failure whose hearts still pump fairly well (ejection fraction 40-70%). Researchers will compare the device to a sham (inactive) implant in 1,500 p…

This Phase 3 trial is testing whether a combination of two drugs, balcinrenone and dapagliflozin, works better than dapagliflozin alone to prevent heart failure events and cardiovascular death. About 4,800 adults with heart failure and moderate-to-severe kidney impairment who rec…

This study tests whether personalized support from a sport and health professional after cardiac rehabilitation helps heart failure patients maintain their physical activity levels. 90 participants will be followed for 12 months, with activity measured by a step counter. The goal…

This Phase 3 study tests whether adding vicadrostat to the standard drug empagliflozin helps adults with chronic heart failure and a weak heart pump (ejection fraction below 40%). About 4200 participants will take either vicadrostat or a placebo, plus empagliflozin, once daily fo…

This trial investigates whether people with heart failure and a traditional right ventricular pacemaker feel better and have stronger hearts after switching to a more natural pacing method, such as His bundle or biventricular pacing. Participants will have their pacemaker upgrade…

This study compares a standard leg exercise program alone versus the same program combined with neuromuscular electrical stimulation (NMES) in heart failure patients who have a temporary heart pump (intra-aortic balloon pump) in their leg. The goal is to see if adding NMES helps …

This study tests a small sensor implanted in a large vein near the heart to help doctors monitor fluid buildup in people with heart failure. The sensor sends daily readings so treatment can be adjusted early. The trial will compare standard care plus sensor guidance to standard c…

This study tests an investigational drug called omecamtiv mecarbil in 1,800 adults with severe heart failure and a very weak heart pump. The goal is to see if it can lower the risk of heart failure worsening, hospitalization, need for a heart pump or transplant, or death. Partici…

This study tests whether a 12-week low-calorie meal replacement diet can improve heart function and exercise ability in people with heart failure with preserved ejection fraction (HFpEF) who are also obese. 63 adults will be randomly assigned to either the diet or standard care. …

This study tests whether giving two inhaled drugs (milrinone and epoprostenol) before heart-lung bypass can prevent difficult separation from the machine. About 141 adults having heart surgery will be randomly assigned to receive the drug combo or a placebo. The goal is to see if…

This study tests whether taking a daily fiber and magnesium supplement (WellBiome) for 6-8 weeks before heart surgery can improve recovery. Researchers will compare ICU time, complications, and hospital stay between 80 patients who get the supplement or a placebo. The goal is to …

This study compares a remote monitoring system called HeartLogic to standard in-person follow-up for people with heart failure who have a special defibrillator. About 578 adults will be randomly assigned to either get alerts from the device that prompt early check-ins or to conti…

This study compares weight loss using semaglutide (a drug) versus a calorie-restricted diet in 100 people with obesity and heart failure with reduced ejection fraction. The goal is to see which approach better improves peak oxygen uptake, a measure of exercise capacity, after 52 …

This large phase 3 trial is testing whether adding vicadrostat to the existing drug empagliflozin can reduce the risk of heart problems in adults with type 2 diabetes, high blood pressure, and heart disease. About 11,800 participants will take either the combination or a placebo …

This study is testing a new device called the BrioVAD, a mechanical heart pump for people with severe, advanced heart failure that doesn't get better with standard treatments. The goal is to see if the pump is safe and helps people live longer and feel better. About 60 adults wit…

This study tests whether the drug vericiguat can help children with heart failure caused by a weak left heart chamber. About 342 children aged 1 month to 18 years will receive either vericiguat or a placebo for 16 weeks. The main goal is to see if the drug lowers a key heart stre…

This study looks at whether the diabetes drug dapagliflozin can improve how well the right side of the heart works after off-pump coronary bypass surgery. Researchers will measure heart function in 72 patients with weak hearts before and after 6 months of taking the drug. The goa…

This study looks at whether people with acute heart failure can be safely followed up at home using digital tools instead of going to the hospital. About 450 patients will be randomly assigned to either in-person hospital visits or remote digital check-ups. The goal is to see if …

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 study tests whether adding vicadrostat to the standard medicine empagliflozin helps people with heart failure who have a preserved ejection fraction (heart pumps normally but is stiff). About 6000 adults with symptoms will take either vicadrostat plus empagliflozin or a plac…

This study tests whether empagliflozin, a diabetes drug, can prevent death, new dialysis, or lasting kidney damage in people with cardiorenal syndrome type 1—a condition where heart failure suddenly worsens kidney function. About 200 hospitalized adults will receive either empagl…

This phase 3 study tests whether finerenone, a drug that blocks inflammation and scarring in the heart, can improve heart function in children aged 6 months to 18 years with heart failure and left ventricular systolic dysfunction. About 111 participants will receive either finere…

This study is testing whether an implantable defibrillator (ICD) helps people with a certain type of heart failure (non-ischemic cardiomyopathy) live longer. About 2,500 participants will be randomly assigned to receive an ICD or not, and their survival will be tracked for up to …

This study tests whether a mechanical heart pump (HeartMate 3) can help people with advanced heart failure live longer and avoid serious complications like stroke or the need for a heart transplant. About 850 participants will either receive the pump or continue standard medical …

This study looks at the long-term safety of the drug pelacarsen in people with high lipoprotein(a) and heart disease. About 5,700 participants who finished a previous pelacarsen trial will receive the drug and be monitored for side effects and heart events. The goal is to see if …

This study is tracking the safety and effectiveness of a small device called the Occlutech Atrial Flow Regulator in 150 people with chronic heart failure. The device is implanted to create a small opening between the upper chambers of the heart, which may help reduce pressure and…

This study tests a device called Aortix, a small pump placed in the main artery, to help remove excess fluid in people hospitalized with acute heart failure who are not responding well to diuretic medications. About 320 participants will be randomly assigned to receive either the…

This study tests a new device called the Icoms FlowMaker, designed to help the heart pump more blood in people with severe heart failure. Ten patients who are too sick for standard treatments will receive the implant. The main goal is to see if the device is safe and works well f…

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 tests if delivering oxygen directly into the gut through a thin tube can help people with ischemic-hypoxic bowel disease, a condition where the bowel doesn't get enough oxygen. About 90 adults with symptoms like belly pain, bloating, and trouble pooping will receive ei…

This study is testing whether potassium nitrate, alone or combined with two supplements (propionyl-L-carnitine and nicotinamide riboside), can improve exercise endurance in people with a type of heart failure called HFpEF. About 53 participants will take these agents and undergo …

This study looks at whether people with heart failure caused by a treatable problem, like a blocked artery or a faulty heart valve, can safely wait to start certain heart failure medications after the problem is fixed. About 80 adults whose heart function improved after surgery o…

This study tests whether a small wireless monitor in the lung artery can help people with a mechanical heart pump avoid hospital visits. About 40 adults who already have a HeartMate III heart pump will be randomly assigned to get the monitor or standard care. The goal is to see i…

This study looks at whether adding a low dose of digoxin to usual heart failure treatments helps people feel better and live well after a recent hospital visit for worsening heart failure. About 120 adults with weak heart pumping function will take digoxin or continue their curre…

This study tests a 12-week home-based cardiac rehabilitation program delivered through a smartphone app for 332 adults with heart failure who cannot attend in-person rehab. Participants are split into two groups: one uses the app program, the other receives standard attention. Th…

This study tests a new drug called CK-4021586 (ulacamten) in 60 adults with a type of heart failure where the heart pumps normally but is stiff (HFpEF). Participants take the drug or a placebo for 12 weeks to see if it is safe and how it affects heart function. The goal is to fin…

This study compares two different drugs, vicadrostat and spironolactone, both taken with empagliflozin, to see how they affect kidney function and protein levels in blood and urine. The trial involves 100 adults with chronic kidney disease and heart disease or heart failure. Part…

This study compares two breathing support methods—high-flow nasal cannula (HFNC) and non-invasive ventilation (NIV)—in heart failure patients after their breathing tube is removed. The goal is to see which method better prevents the need for re-insertion of the breathing tube or …

This study tests an experimental pill (PF-07328948) for adults with heart failure. About 620 participants will receive either the drug or a placebo to see if it improves walking distance and heart-related symptoms over 36 weeks. The goal is to manage the condition and reduce the …

This study tests whether a carefully controlled high-fat diet can improve heart function in people with a specific type of heart failure (non-ischemic dilated cardiomyopathy). Researchers believe that switching the heart's fuel source back to fats may help it pump more effectivel…

This study is testing a digital app called VIRTUES that provides educational resources and treatment recommendations for heart conditions like atrial fibrillation and heart failure. Researchers will enroll 2000 patients across 11 modules to see if the app is easy to use and helps…

This study tests whether adding Qishen Yiqi Dropping Pills, a Chinese herbal medicine, to standard therapy can improve exercise ability and quality of life in 120 adults with severe pulmonary hypertension. Participants will be randomly assigned to receive either the herbal pills …

This study tests a new pacing method called left bundle branch area pacing for people with heart failure whose heart pumps less blood than normal (ejection fraction 50% or lower). It is for patients who cannot get standard pacing or need a backup option. The goal is to see if thi…

This study tests whether a high-protein DASH diet, resistance exercise, or both can help people with heart failure and reduced ejection fraction maintain or increase muscle mass. About 100 adults over age 30 with stable heart failure will take part. The goal is to see if these li…

This study tests a device called Heartfelt that sits in your home and uses 3D images to detect early signs of fluid buildup in the legs and feet, a common problem in heart failure. About 300 people with heart failure and leg swelling will either get the device plus standard care,…

This study tests whether taking selenium and coenzyme Q10 (CoQ10) supplements can reduce heart failure-related hospital visits and deaths. About 1,100 adults with chronic heart failure will receive either the supplements or a placebo alongside their usual care. The goal is to see…

This study tests whether a preventive heart ablation procedure, done soon after implanting a defibrillator (ICD), can reduce dangerous heart rhythms in people with heart failure and weak heart muscle. About 62 high-risk adults will be randomly assigned to either receive the ablat…

This study tests a new device called the SATURN system, which is implanted through a tube in a blood vessel to replace a leaky mitral heart valve. It is for people aged 65 and older with severe symptoms who are not good candidates for open-heart surgery. The goal is to see if the…

This study tests whether telemedicine follow-up helps doctors adjust heart failure medications more effectively than standard in-person visits. Eighty adults with newly diagnosed heart failure with reduced ejection fraction will be randomly assigned to either remote monitoring or…

This phase 3 trial is testing whether adding baxdrostat to the standard drug dapagliflozin can better prevent heart failure and cardiovascular death in people with type 2 diabetes who already have heart disease and high blood pressure. About 11,300 participants will receive eithe…

This study tests whether adding empagliflozin (a diabetes drug) to standard carvedilol treatment can prevent liver decompensation events and death in 400 adults with cirrhosis and left ventricular diastolic dysfunction (stiff heart). Participants will receive either empagliflozin…

This study tests a drug called inclisiran in children aged 6 to 12 who have a genetic condition that causes very high cholesterol. The drug is given as a shot under the skin and aims to lower 'bad' LDL cholesterol. The trial compares inclisiran to a placebo for one year, then eve…

This study compares a newer pacing method called conduction system pacing (CSP) with the standard biventricular pacing (BiVP) in heart failure patients who already have a right ventricular pacemaker and need an upgrade. Researchers want to see if CSP is as good as BiVP at improvi…

This study tests a new heart pacing method (LOT-CRT) against the standard one (BiVP) in 86 heart failure patients with a specific type of heart block. The goal is to see if the new method better preserves heart pumping function. Participants will be followed for at least 6 months…

This study tests whether enavogliflozin, a drug originally for diabetes, can prevent atrial fibrillation (AF) from returning after a catheter ablation procedure in people with AF and heart failure. About 390 adults will receive either the drug or a placebo daily for a year. The m…

This Phase 3 trial tests whether injecting lab-grown heart muscle cells (HiCM-188) into the heart during bypass surgery can help people with severe heart failure (NYHA class III-IV). Eighty participants will receive either the stem cells plus bypass or bypass alone. The main goal…

This study compares two common heart procedures—bypass surgery (CABG) and stenting (PCI)—in 358 people with weak hearts (ejection fraction 40% or less) and multiple blocked arteries. The goal is to see which approach leads to better survival, fewer heart attacks or strokes, and i…

This study tests a small implantable sensor that monitors pressure in the lung artery for patients with severe tricuspid regurgitation and heart failure. The sensor is placed before a minimally invasive valve repair, and pressure readings are tracked for a year. The goal is to se…

This study tests an experimental drug (BMS-986435/MYK-224) in people with a specific type of heart failure where the heart pumps normally but is too stiff (HFpEF). The main goal is to check the drug's safety and how the body processes it. About 208 adults with stable symptoms wil…

This study tests whether a mechanical heart pump (LVAD) works better than standard medications for people with end-stage heart failure who are not yet bedridden. About 92 participants will either receive the pump or continue their current drug therapy. The goal is to see which ap…

This study tests a small device implanted in the heart that measures pressure and creates a small opening to help blood flow. It is for people with chronic heart failure whose heart pumps weakly (ejection fraction 40% or less) and who still have symptoms despite standard treatmen…

This study looks at whether people hospitalized for acute heart failure can safely drink as much as they want instead of limiting fluids. About 420 participants will be randomly assigned to either a strict 1.5 liters per day limit or a thirst-driven liberal intake. Researchers wi…

This study tests whether using portable air cleaners at home after a heart failure hospital stay can improve heart health. About 400 adults will receive either a real air cleaner or a fake one. Researchers will measure changes in a heart stress marker and track hospital readmissi…

This study tests whether replacing unhealthy gut bacteria with healthy donor bacteria (via capsules) is safe and doable for people with chronic heart failure. About 40 adults with stable heart failure will take the capsules and be monitored for side effects and adherence. The goa…

This study is testing whether valsartan, a drug already used for high blood pressure, can help people with pulmonary arterial hypertension (PAH). Researchers will give 60 adults either valsartan or a placebo for 24 weeks to see if it improves how far they can walk in six minutes …

This study tests whether dapagliflozin, a drug used for diabetes and heart failure, can lower vein pressure in adults with a failing Fontan circulation. About 27 participants will take the drug or a placebo for 3 months. The goal is to see if it helps the heart pump blood more ea…

This study tests whether a special activity score, calculated from heart rate data, can help people who have completed cardiac rehab stick to exercise guidelines. About 318 participants will wear a smartwatch for 4 months and do an exercise test at the end. Researchers will compa…

This study tests a program called FamLit, where nurses use simple language to coach heart failure patients and their care partners on working together to overcome barriers to taking medications as prescribed. The goal is to improve medication adherence, reduce hospitalizations, a…

This study tests a program called I-TRANSFER-HF for people with heart failure who need home care after leaving the hospital. The program combines early nurse visits at home with quick follow-up doctor appointments to prevent patients from returning to the hospital within 30 days.…

This study looks at whether a procedure called catheter ablation (using heat or cold to fix faulty heart signals) is better than standard medications for people with both atrial fibrillation and heart failure. About 1,200 adults will be randomly assigned to receive either ablatio…

This study tests whether the drug finerenone can reduce hospitalizations and deaths in people with a certain type of heart failure (with preserved or mildly reduced pumping ability). About 5,200 adults who are currently or recently hospitalized for heart failure will receive eith…

This study compares a low-sodium (2 g/day) diet to a regular diet (3-4 g/day) in 500 adults hospitalized for heart failure. The goal is to see if a low-sodium diet actually reduces hospital stay length and 30-day readmission rates. Participants follow the assigned diet only while…

This study compares two methods for closing the breastbone after open-heart surgery: rigid plate fixation (using a metal plate and screws) versus traditional wire cerclage (using stainless steel wires). The trial will enroll 250 adults at high risk for wound complications, such a…

This early trial tests a device that keeps donor hearts cool and oxygenated during transport, instead of the usual ice cooler. The goal is to see if this method is safe and works for heart transplants from both brain-dead and circulatory-death donors. Twenty adult patients awaiti…

This study tests whether text messages can help people who have finished cardiac rehab keep up healthy habits like weight management, physical activity, and taking medications. Researchers will enroll 400 people from groups often left out of heart research. The study compares dif…

This study tests a modified pacemaker designed to improve heart function and quality of life in people with heart failure with preserved ejection fraction (HFpEF). About 105 participants will receive either the active pacing therapy or a non-pacing mode. Researchers will measure …

This study compares two common heart procedures—bypass surgery (CABG) and stenting (PCI)—in 754 people with severe coronary artery disease and a weak heart pump. The goal is to see which approach better prevents death, stroke, heart attacks, or repeat procedures over 5 years. Par…

This study tests whether a three-drug combination (SGLT2 inhibitor, ARNI, and MRA) can improve heart structure, function, and symptoms in 50 people with advanced HFpEF, a type of heart failure where the heart is stiff but pumps normally. Participants will receive either the tripl…

This study tests whether a digital remote-management platform can help doctors better adjust heart failure medications after patients leave the hospital. About 252 adults with heart failure and reduced pumping function will use the platform to report symptoms and vital signs, wit…

This study tests whether giving a diuretic (furosemide) to reduce fluid buildup can better protect the kidneys from contrast dye damage compared to standard IV fluids. It involves 190 adults hospitalized with acute heart failure and moderate kidney problems who need a CT scan. Re…

This study is testing a new type of heart pacing lead that is placed in the left bundle branch area, a key part of the heart's electrical system. The goal is to see if this approach is safe and works better than standard pacing for people with bradycardia (slow heart rate) or hea…

This study is a large registry that will follow 5,500 people with heart failure who receive a CCM device, which sends mild electrical signals to the heart to help it pump better. Researchers want to see if the therapy reduces hospital stays and heart-related emergencies over time…

This study tests whether taking a daily selenium supplement (200 micrograms) can reduce hospitalizations and heart-related deaths in people with heart failure. Selenium is a nutrient important for heart health, and low levels are common in Northern Europe. The trial will include …

This study tests whether a procedure to open narrowed kidney arteries (renal artery stenting) helps high-risk patients with resistant high blood pressure, declining kidney function, or heart failure. About 80 participants will either receive the real procedure or a sham procedure…

This study tests whether opening blood vessels (vasodilation) or removing fluid (diuretics) is better for treating sudden fluid buildup in the lungs from heart failure. About 1,100 adults with severe shortness of breath and low oxygen levels will receive one of three treatments i…

This study tests whether colchicine, a common anti-inflammatory drug, can help people with chronic heart muscle inflammation (inflammatory cardiomyopathy). About 80 adults with this condition will receive either colchicine or a placebo to see if it prevents worsening heart failur…

This study tests a device called Efferon LPS that filters harmful substances from the blood during and after heart surgery. The goal is to see if it can reduce the risk of multiple organ failure, a serious complication. Researchers will enroll 60 adults having heart surgery with …

This study looks at whether having a specially trained community paramedic visit people with heart failure at home can reduce hospital stays and emergency visits compared to standard care. About 75 adults with worsening heart failure will take part. The goal is to see if this app…

This study tests whether giving heart failure patients a one-page checklist of recommended medications helps doctors prescribe them more often. The checklist lists guideline-approved drugs and doses for heart failure with reduced ejection fraction. Researchers will enroll 4000 pa…

This study tests whether a virtual ward—using a tablet, scale, and blood pressure monitor at home—can reduce hospital readmissions for heart failure patients. 346 adults who were recently hospitalized for heart failure will either receive the virtual ward or standard care. Resear…

This study tests whether finerenone, a drug already used for kidney disease, can help protect transplanted kidneys. About 100 adults who received a kidney transplant 1 to 10 years ago will take either finerenone or a placebo daily for 12 months. Researchers will check how well th…

This early-stage trial is testing an experimental drug called HJB647 in 12 adults with stable chronic heart failure and reduced pumping ability. The study aims to check the drug's safety and how the body processes it at two different doses. Participants will receive both the drug…

This study follows 30 children aged 1 to 17 with chronic heart failure who are taking Entresto for the first time. Researchers will monitor for side effects like low blood pressure, high potassium, kidney problems, and dehydration over 52 weeks. The goal is to understand how safe…

This study tests a device called the Carillon Mitral Contour System in 300 people with heart failure and a leaky mitral valve. The device is placed in a vein to help the valve close better, reducing blood backflow. The goal is to see if it improves symptoms, walking ability, and …

This study tests whether genetic testing can help veterans at high risk for heart disease start and stick with statin medications. About 410 veterans aged 40-75 with diabetes or heart disease who are not currently taking statins will receive either a genetic report on their stati…

This study tests whether using urine sodium levels to adjust diuretic doses helps people with acute heart failure recover faster and live longer. About 556 adults hospitalized with acute heart failure will receive either standard care or a tailored diuretic plan. The goal is to s…

This study tests a new method called decrement evoked potential (DeEP) mapping to guide catheter ablation for ventricular tachycardia (VT) in people with structural heart disease. VT is a fast, dangerous heart rhythm that can cause sudden cardiac arrest. The standard ablation pro…

This early-stage trial tests a new drug called VS-041 in 42 people aged 50 and older who have a type of heart failure where the heart pumps normally but is too stiff (HFpEF). The main goals are to check if the drug is safe and to measure changes in certain blood markers linked to…

This study looks at whether people whose heart failure has improved can safely cut back on some of their daily medications. Participants will either continue all four standard drugs or gradually reduce to just two under close monitoring. The goal is to see if heart function stays…

This study tests whether a daily tablet called sotagliflozin can improve quality of life for people with both type 1 diabetes and heart failure. Researchers will give 320 participants either the drug or a placebo for 4 months, then compare symptoms like breathlessness and tiredne…

This study compares two types of heart pacing—conduction system pacing and standard biventricular resynchronization—in 320 adults with heart failure and wide QRS. The goal is to see which method better reduces the risk of death, heart transplant, or hospitalization for heart fail…

This study tests whether adding digital coaching to home-based cardiac rehabilitation helps veterans complete more rehab sessions and improve their heart health. 150 veterans with heart disease will be randomly assigned to standard home rehab or home rehab plus a private social m…

This study tests whether adding macitentan to the standard drug dapagliflozin improves outcomes for people with heart failure and a specific type of high blood pressure in the lungs. 64 adults in South Korea will take either the combo or dapagliflozin alone for 24 weeks. Research…

This study is testing whether a small wireless sensor placed in the lung artery can help doctors manage heart failure better. The sensor measures pressure in the lung artery and sends readings to a doctor, who can then adjust medications early to prevent flare-ups. The study will…

This study looks at whether cancer survivors who had heart problems from their cancer treatment can safely stop taking heart failure medications once their heart function is back to normal. About 335 adults who have finished cancer therapy and are on heart medications will be ran…

This study is testing a new heart valve device (JenaValve Trilogy) placed through a tube in an artery, without open surgery. It is for 50 adults who have a mechanical heart pump (LVAD) and also a leaky aortic valve that makes the pump work less effectively. The goal is to see if …

This phase 3 trial studies whether patients with acute decompensated heart failure who are already taking an SGLT2 inhibitor like empagliflozin should continue it during hospitalization. About 536 participants will either keep taking empagliflozin or switch to a placebo while in …

This study tests a device that filters out overactive immune cells from the blood to reduce inflammation in patients with severe heart failure and worsening kidney function. Twenty ICU patients will receive 4-hour treatments daily for up to 6 days. The goal is to see if it safely…

This study tests a new heart pump called BrioVAD for people with severe heart failure that doesn't get better with standard treatments. The pump uses magnetic levitation to help the heart pump blood. About 780 adults will get either the BrioVAD or an existing pump to see if the n…

This study tests a device that stimulates the diaphragm in time with the heartbeat to help people with heart failure. Researchers will see if it improves heart function, exercise ability, and quality of life. About 270 participants will receive the device plus standard care, or s…

This early-stage study tests a new way to use a heart-lung machine (ECMO) in 4 people waiting for a lung transplant who also have heart failure from high blood pressure in the lungs. The goal is to see if this approach can keep them alive and stable until they receive a transplan…

This study tests a new remote monitoring system called SmartSignalHF in 1132 adults with heart failure who have an implanted heart device (ICD or CRT-D). The goal is to see if this system can reduce deaths and hospital stays over 12 months compared to standard care. Participants …

This observational study follows up to 2,000 adults with ATTR-CM, a serious heart condition, who are starting treatment with acoramidis as part of their normal care. Researchers will track patient characteristics, how the drug is used, and its effects on heart function and qualit…

This study tests an experimental drug called TX000045 in 180 adults with pulmonary hypertension (high blood pressure in the lungs) caused by a type of heart failure where the heart pumps normally but doesn't relax properly. Participants will receive either the drug or a placebo f…

This study tests whether measuring sodium in urine can help doctors adjust diuretic doses more accurately for people with chronic heart failure. About 300 participants will be assigned to either a urine-guided approach or standard care. The goal is to reduce congestion and hospit…

This study tests whether a 6-month program of problem-solving training, community health worker support, and exercise coaching at a YMCA can improve fitness and heart health in 210 adults with type 2 diabetes, obesity, and low income. Participants are compared to those who receiv…

This study looks at heart failure patients whose heart function has improved to normal levels. It tests whether gradually stopping one of their heart medications (RAS blocker or beta blocker) is safe, compared to staying on all medications. The goal is to see if patients can main…

This study is testing whether people aged 70 and older with heart failure and a weak heart pump live just as long with only medication as they do with an implanted defibrillator (ICD). The trial will randomly assign 730 participants to receive either an ICD plus medication or med…

This study tests whether a daily pill called sotagliflozin can slow kidney function loss in people with type 1 diabetes who already have moderate to severe kidney disease. About 150 participants will take either the drug or a placebo for 3 years, while following a special plan to…

This study looks at whether a special heart device called cardiac contractility modulation (CCM) can help people with heart failure live longer and avoid hospital stays. About 4,200 people with advanced heart failure will either get the device or standard care. The goal is to see…

This study tests a new approach using a wearable device called ReDS to monitor fluid levels in adults hospitalized for heart failure. The goal is to see if this method reduces the risk of death, readmission, or urgent visits within a month after discharge. About 1,014 participant…

This study looks at whether people at moderate risk for heart problems should continue or stop taking aspirin before a colonoscopy. About 2,500 participants will be randomly assigned to take either aspirin or a placebo for a few days around the procedure. The goal is to see which…

This study tests a device that keeps donor hearts functioning outside the body without stopping blood flow. It aims to safely use hearts from extended-criteria donors (e.g., older or with other health issues) for transplant. Sixty adult heart transplant recipients will receive a …

This study tests a special scale that measures heart signals and fluid levels in people on peritoneal dialysis for kidney failure. The goal is to see if the scale can warn patients and doctors early when fluid overload is about to happen, so they can take action before an emergen…

This study tests a noninvasive radiation treatment (SBRT) for people with ventricular tachycardia, a dangerous heart rhythm that can cause sudden death. The 12 participants have structural heart disease and have not been helped by standard treatments like drugs or catheter ablati…

This study tests a small device called C-MIC that is implanted without open-heart surgery to help people with heart failure. It includes 22 adults with weak heart pumping (ejection fraction between 25% and 50%) despite standard medications. The device delivers microcurrents to th…

This study is testing whether adults with sudden illnesses like infections, heart failure, or COPD can be safely treated at home instead of in a hospital. Researchers will compare costs, patient experience, and health outcomes for 3,000 participants who receive hospital-level car…

This trial tests whether doing a coronary angiogram (a special X-ray of the heart arteries) within 2 hours of diagnosis is better than waiting until the patient's heart failure symptoms improve. The study includes 780 adults with a type of heart attack called NSTEMI who also have…

This pilot study tests whether an implanted heart pressure monitor (CardioMEMS) can help prevent complications in 40 patients who survived cardiogenic shock. Participants will have the device implanted and receive regular pressure checks and medication adjustments. The goal is to…

This study tests an oral drug called levosimendan against a placebo in 540 adults with pulmonary hypertension and a type of heart failure (HFpEF). The main goal is to see if the drug helps people walk farther in six minutes. Participants must be 18-85 years old with specific hear…

This study tests whether a one-year program led by heart failure nurses, using online training and a mobile app, can reduce repeat hospital stays and improve quality of life for people with heart failure. About 200 adults who were recently hospitalized for worsening heart failure…

This study tests whether a monthly injection called ziltivekimab can reduce heart failure-related deaths, hospitalizations, and urgent visits in people with heart failure and signs of inflammation. About 5,600 participants will receive either the drug or a placebo for up to 4 yea…

This study tests a procedure that uses a catheter to treat a nerve in the body, aiming to improve symptoms in people with a type of heart failure called HFpEF. About 150 participants will be enrolled to see if the procedure is safe and effective. The goal is to help patients feel…

This study tests whether adding an SGLT2 inhibitor (a type of diabetes medicine) to standard hospital care helps people with heart failure who also develop acute kidney injury. Researchers will compare outcomes like survival, need for dialysis, and symptom relief between those wh…

This study compares two ways of placing a pacemaker lead in people who need frequent pacing. One method (left bundle branch pacing) aims to activate the heart more naturally than the standard method. The goal is to see if it reduces the time the heart spends in fast, irregular rh…

This early-stage trial tests whether heart cells grown from a patient's own stem cells are safe to inject into people with severe congenital heart disease. About 50 participants will receive the cells or be in a control group. The main goal is to check for serious side effects wi…

This study tests a potential new medicine called CDR132L in 200 people with heart failure and an enlarged heart. Participants receive either CDR132L or a placebo by IV every 4 weeks for 48 weeks. The goal is to see if the drug can improve heart structure and function.

This study tests a new medicine called CDR132L in 200 people with a type of heart failure where the heart is stiff and thickened. The goal is to see if it can improve heart structure and function. Participants will receive either the study drug or a placebo by chance, and the stu…

This study looks at whether combining two common diabetes drugs (GLP-1 agonists and SGLT2 inhibitors) can improve heart function and artery health in people with type 2 diabetes who are at high risk for heart problems. About 240 adults will be split into four groups, each receivi…

This study tests whether a home-based cardiac rehabilitation program using wearable devices and remote monitoring can improve exercise capacity in adults with chronic heart failure. Researchers will compare the home program to standard in-hospital rehab. The goal is to see if the…

This study looks at whether a procedure to repair a leaky tricuspid heart valve can improve kidney function, reduce swelling, and boost physical activity in older adults. Researchers will follow 100 participants for changes in kidney health, walking ability, and daily function. T…

This study tests a drug called sacubitril-valsartan in young adult cancer survivors (diagnosed at or before age 39) who have early-stage heart failure (stage B) caused by past chemotherapy. The goal is to see if the drug is tolerable and can help control heart damage. About 53 pa…

This study tests whether a potassium-lowering drug called sodium zirconium cyclosilicate (Lokelma) can help elderly patients with heart failure and chronic kidney disease safely take higher doses of RAASi medications, which are often limited by high potassium levels. The trial wi…

This study tests whether a daily pill called engagliflozin (a type of SGLT2 inhibitor) can improve heart function in people who have high blood pressure and early signs of heart failure but do not have diabetes. About 120 adults will receive either the drug or a placebo for 6 mon…

This study tests whether adding the drug vericiguat to standard heart failure treatment can reduce hospital stays and deaths in people with severe, decompensated heart failure. About 130 participants will be randomly assigned to get vericiguat or a placebo, and researchers will t…

This early study is testing a new heart pump device (Magenta Elevate) in 10 people with cardiogenic shock, a life-threatening condition where the heart can't pump enough blood. The device is inserted through a blood vessel to help the heart pump. Researchers are checking if it is…

This study looks at 128 people with advanced heart failure who have a HeartMate3 heart pump. All take warfarin to prevent clots, and half will also stop taking aspirin. The goal is to see if skipping aspirin lowers the risk of serious bleeding without raising the chance of danger…

This study looks at whether a personalized home exercise program can improve heart and kidney function in adults aged 18-75 who have both chronic heart failure and kidney problems (cardiorenal syndrome). Sixty participants will either receive standard medication alone or medicati…

This pilot study tests whether the drug eplerenone is safe and feasible for people with both heart failure (reduced pumping ability) and severe chronic kidney disease. Previous studies excluded such patients due to risks like high potassium. The trial will enroll 40 participants …

This phase 3 trial tests whether the drug dapagliflozin (Farxiga) can reduce deaths and heart or kidney problems in people leaving the intensive care unit (ICU). About 600 adults who needed a breathing machine or blood pressure support will take either the drug or a placebo daily…

This study tests whether heart failure patients who fully recover after treatment for a fast heart rhythm (like atrial fibrillation) can safely stop their heart failure medications. 348 participants will be randomly assigned to either gradually stop their drugs or continue them a…

This study aims to find out which type of specialist pacemaker works best for people with heart failure and a delay in how the heart's lower chambers beat together. Sixty participants will be randomly assigned to one of three pacing methods and followed for six months. Researcher…

This study looks at whether a special type of pacemaker, called cardiac resynchronization therapy (CRT), can help people with heart failure who develop a heart block after having their aortic valve replaced. The trial will include 360 adults who have a new, persistent heart block…

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 device called FibroScan, which measures liver stiffness, can quickly diagnose acute heart failure in people who come to the emergency room with shortness of breath. Researchers will enroll 100 adults and compare the FibroScan results with standard tests…

This study is testing whether a digital stethoscope, combined with artificial intelligence, can detect two serious conditions: high blood pressure in the lungs (pulmonary hypertension) and a weak heart pump (low ejection fraction). About 3,850 adults will have their heart sounds …

This study is testing a new artificial intelligence (AI) tool that analyzes electrocardiograms (ECGs) to find a condition called left ventricular systolic dysfunction (LVSD), a type of heart failure where the heart's main pumping chamber is weak. Researchers will enroll 15,000 ad…

This study tests a wearable ring that measures blood pressure, comparing it to the standard 24-hour monitor in 100 people with heart failure and reduced pumping ability. The goal is to see if the ring is accurate and easy to use. If successful, it could make blood pressure tracki…

This study tests whether an AI program can help emergency doctors find undiagnosed heart failure, COPD, and cancer by analyzing chest X-rays. Researchers will compare diagnosis rates when doctors have access to the AI's findings versus when they don't. The trial involves 17,000 a…

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 is testing whether artificial intelligence can spot early signs of worsening heart failure by analyzing changes in a patient's voice, cough, and breathing sounds. Researchers will enroll 250 adults with chronic heart failure to record sounds and compare them with stand…

This pilot study explores whether data from the HeartMate 3 heart pump can be used to monitor heart function without invasive tests or frequent imaging. Researchers will compare high-resolution pump data with standard echocardiograms and ECGs in 60 patients with end-stage heart f…

This study tests a new type of electrocardiogram (UHF-ECG) that uses ultra-high frequency waves to detect when the heart's lower chambers are not beating in sync. Researchers will compare it to the standard 12-lead ECG in 360 adults with slow heart rate or heart failure who are s…

This study aims to see if a special MRI done during exercise can help doctors better diagnose and predict outcomes in people with a type of heart failure called HFpEF. Researchers will enroll 400 adults, including those with HFpEF, those with shortness of breath from other causes…

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 is testing a cloud-based artificial intelligence platform called Willem that analyzes ECG recordings to detect heart rhythm problems and abnormal patterns. Researchers will compare the AI's readings to those of board-certified cardiologists in over 5,300 high-risk card…

This study tests whether an artificial intelligence system called Willem™ can help primary care doctors detect heart failure more accurately by analyzing electrocardiograms (ECGs). About 1,968 adults with suspected heart failure or high cardiovascular risk will be randomly assign…

This study will enroll 5,000 adults across five hospitals in Taiwan to see if an artificial intelligence program can accurately detect low heart pumping function and structural heart disease using a single-lead ECG recorded from devices like an Apple Watch. Participants will have…

This study is testing a new wearable ultrasound sensor that sticks to the skin like a patch. The goal is to see if it can help doctors find and monitor deep vein thrombosis (blood clots) and heart conditions early, without needing bulky machines. About 300 adults with heart failu…

This study looks at whether advanced heart scans (echocardiogram and MRI) can help diagnose a type of heart failure called HFpEF, where the heart is stiff but pumps normally. Standard tests often miss it, leaving many without proper treatment. Researchers will study 40 adults wit…

This study is testing a special mattress that can measure heart rate, breathing, temperature, and body position without touching the patient. It is designed for people with heart disease who are in the hospital. The goal is to see if this wireless system works as well as standard…

This study is testing a special vest called HALD that records heart and lung sounds. Researchers want to see if the recordings are as accurate as what a doctor hears with a stethoscope. About 200 adults with or without heart or lung conditions will wear the vest during a clinic v…

This study tests whether artificial intelligence (AI) can analyze routine heart tests (ECGs) to find hidden heart problems like weak heart muscle, valve issues, or high lung pressure. About 590 adults without a prior heart disease diagnosis will have ECGs taken with standard mach…

This study tests a new PET imaging method that uses a special tracer called XTR003 along with FDG to see which parts of the heart are still alive in people with heart failure from blocked arteries. About 40 to 60 participants will be randomly assigned to receive either the new fa…

This study tests whether inhaling a special form of xenon gas during an MRI can help doctors see and measure blood vessel changes in the lungs of people with pulmonary arterial hypertension (PAH). The goal is to find a non-invasive way to diagnose different types of PAH and track…

This study trains non-expert staff in GP practices to perform quick heart ultrasounds on people 65 and older. The goal is to find hidden heart valve disease or heart failure early, especially in diverse communities. Researchers hope this approach can reduce emergency hospital vis…

This study tests whether giving the flu vaccine to heart patients just before they leave the hospital can lower their risk of infections, heart problems, and death in the next 6 months. About 400 adults hospitalized for serious heart conditions will be randomly assigned to get th…

This study compares two approaches for heart attack survivors with weak hearts: taking modern medications alone versus getting a defibrillator implant plus medications. The goal is to see if medication alone is as good at preventing sudden cardiac death. About 3,600 participants …

This study tests a new way to screen for heart failure risk in people with type 2 diabetes. Doctors use a blood test (NT-proBNP) and a risk score to identify high-risk patients, then offer early prevention treatments. About 300 patients are taking part. The goal is to see if this…

This study looks at ways to improve the mental health and quality of life for people with a Left Ventricular Assist Device (LVAD) and their family caregivers. After leaving the hospital, both patients and caregivers often struggle with stress and lower well-being. Participants wi…

This study is testing a smartphone app called MedlyPeds that lets children with heart disease send their weight, blood pressure, and heart rate to their doctors from home. The app also asks about symptoms and sends personalized tips. The goal is to see if the app is easy to use a…

This study looks at whether giving intravenous iron (Ferinject) to heart failure patients with low iron can improve their quality of life and walking ability. About 100 hospitalized adults with a specific type of heart failure (HFpEF) will receive either iron infusions plus diet …

This study tests whether a 12-week resistance training program can improve physical function, quality of life, and heart-related biomarkers in people with heart failure who are on the waiting list for a heart transplant. Participants will be randomly assigned to either the exerci…

This study tests whether a mobile-based telemedicine program—using phone calls and text messages for health education, medication reminders, and lifestyle advice—can improve quality of life in adults with chronic heart failure. About 70 patients in Ethiopia will be split into two…

This study tests a smartphone app designed to help people prepare for heart surgery through exercise, nutrition tips, and telehealth check-ins. About 40 adults awaiting surgery will either use the app or receive standard care. Researchers want to see if the app is easy to use, ac…

This study tests a 6-session program called BE-FIT that helps cardiac rehabilitation patients reduce anxiety about exercise. The program uses gradual exposure to feared sensations, prevents safety behaviors, and uses activity monitors for feedback. Researchers will enroll 146 adu…

This study tests a new approach for people with worsening heart failure who have too much fluid in their body. Instead of going to the hospital for IV treatment, patients get a water pill (furosemide) as a shot under the skin at home. The study will enroll 100 adults with heart f…

This study tests whether three 15-minute hypnosis sessions can help people with persistent breathlessness from cancer, COPD, interstitial lung disease, or chronic heart failure feel more in control of their breathing. Researchers will measure changes using a standard questionnair…

This study looks at whether a special type of exercise called eccentric training (where muscles lengthen under tension) can help people with heart failure and reduced pumping ability. Researchers will compare eccentric bike and strength training to standard cardio and strength ex…

This study tests whether increasing the pacemaker rate during light exercise can lower pressure inside the heart for people with heart failure with preserved ejection fraction (HFpEF). Twenty participants will have their heart pressures measured at rest and while cycling, as the …

This study tests a 6-week online support programme called HELP for carers of people with heart failure. Around 180 carers and 180 patients will take part across three UK sites. The programme includes weekly online group sessions led by heart failure nurses, plus an educational bo…

This study tests an injectable drug called HRS-9057 in 153 adults hospitalized with heart failure who have fluid retention. The main goal is to see if the drug reduces weight (a sign of fluid loss) by day 8 compared to a placebo. Researchers will also check safety and whether pat…

This study tests whether special breathing exercises can improve breathing muscle strength in people hospitalized for heart failure. About 30 adults will either do breathing exercises with resistance or without. The goal is to see if this safe, simple training helps them feel bet…

This study is testing a new group exercise program combined with remote activity monitoring for older adults with heart failure with preserved ejection fraction (HFpEF). The goal is to see if this approach can improve exercise habits, physical function, and quality of life. About…

This study tests a new drug called HRS-1893 in 48 adults with heart failure where the heart pumps normally but is too stiff (heart failure with preserved ejection fraction). The main goal is to check safety and side effects, while also looking at changes in heart stress markers a…

This study looks at whether doing simple breathing exercises every day before a heart transplant can help patients breathe, cough, and swallow better after surgery. About 90 adults waiting for a heart transplant will take part. They will do daily breathing exercises and have thei…

This study is testing a mobile app called Cardio2U for people with atrial fibrillation or heart failure. The app helps patients track their condition, learn about their disease, and communicate with their care team. Researchers will check if patients find the app easy to use and …

This study is testing a new online resource called Choice-ICD for people who have or are getting an implantable cardioverter defibrillator (ICD). The app includes videos, quizzes, and a forum to help patients and their families understand the device and live better with it. About…

This study looks at whether a special sequence of gentle exercises called Baduanjin can improve heart and lung function and quality of life in people who have both acute coronary syndrome and heart failure. About 65 participants will either do these exercises plus standard care o…

This study tests whether a daily movement program led by a kinesiologist can reduce frailty in 60 hospitalized heart patients. Frailty makes people weaker and more likely to have longer hospital stays or be readmitted. The program encourages simple activities like standing, walki…

This study tests whether blocking signals from the splanchnic nerve can reduce congestion and improve exercise ability in people with heart failure. About 54 adults with heart failure and reduced pumping function will receive either a nerve-blocking procedure or a sham procedure.…

This study tests whether a daily capsule of potassium nitrate (KNO3) can improve leg muscle power and overall exercise capacity in people with heart failure. 75 adults with reduced heart function will take either KNO3 or a placebo for 6 weeks. Researchers will measure changes in …

This study looks at whether placing stents in blocked heart arteries can improve quality of life for people with heart failure with preserved ejection fraction (HFpEF), a condition where the heart muscle is stiff. About 350 participants will be randomly assigned to receive either…

This study tests whether adjusting a pacemaker's lower heart rate to an individual's optimal level can improve symptoms and quality of life in people with heart failure and bradycardia. Researchers will compare this personalized approach to the standard fixed rate of 60 beats per…

This study tests whether an 8-week machine-based resistance training program can improve muscle strength and physical function in older adults (60+) who have both chronic heart failure and sarcopenia (age-related muscle loss). Researchers will measure handgrip strength and sit-to…

This study looks at whether removing fluid from around the lungs (a procedure called thoracentesis) can reduce shortness of breath in people hospitalized for heart failure. About 216 adults will either get standard heart failure medicines alone or medicines plus the fluid removal…

This study looks at whether giving L-Citrulline, tetrahydrobiopterin (BH4), and atorvastatin can improve blood vessel function and physical ability in veterans with a type of heart failure called HFpEF. About 90 participants will take these medications and be tested on how well t…

This study tests whether taking L-carnitine, a natural substance that helps turn fat into energy, can improve symptoms and quality of life in people with heart failure and kidney problems. About 20 adults will take the supplement for a short time while researchers monitor side ef…

This study tests a 12-week phone program that uses positive psychology and motivational interviewing to help 280 heart failure patients stick to their diet, exercise, and medications. Participants get weekly phone sessions and text messages. The goal is to see if this approach im…

This study tests whether combining breathing exercises with mild electrical muscle stimulation can help people hospitalized with worsening heart failure. 135 patients will be split into three groups: one gets both treatments plus standard care, one gets breathing exercises only, …

This study looks at whether giving a special ketone drink through a feeding tube is safe and practical for people with severe heart failure. The goal is to see if it can help the heart use energy better. The study involves 12 participants with very weak hearts who are in the hosp…

This study tests whether empagliflozin (a diabetes drug) and potassium nitrate (a supplement) can improve exercise endurance in people with heart failure with preserved ejection fraction (HFpEF). About 53 participants will take one of three combinations of these drugs for a perio…

This study tests whether adjusting the dose of a diuretic (water pill) based on urine sodium levels can improve outcomes for people hospitalized with acute heart failure. Researchers will compare two urine sodium targets against standard care in 600 adults. The goal is to see if …

This study tests a new medicine called ziltivekimab in 680 adults with heart failure and signs of inflammation. Participants will receive either the drug or a placebo for up to 16 months. The goal is to see if the drug improves heart failure symptoms and physical function, like b…

This study tests whether using lung ultrasound to guide fluid removal in adults hospitalized for acute heart failure leads to better outcomes than standard physical exams. Researchers will compare how long patients stay alive and out of the hospital over 40 days, as well as sympt…

This study tests whether a 12-week chair yoga program is practical and helpful for 20 heart failure patients aged 55 and older living in rural Alabama. Researchers will work with patients and community members to design the program and measure changes in thinking skills and quali…

This study tests whether 8 weeks of phone-based mindfulness training can improve self-care and thinking skills in 176 adults with heart failure and mild cognitive impairment. Participants practice techniques like breath awareness and body scanning for 20 minutes daily. The goal i…

This study tests whether high-flow oxygen therapy can improve heart function in people with chronic heart failure who have recently had heart surgery. Researchers will compare it to non-invasive ventilation (a breathing machine) in 30 adults. The goal is to see if the oxygen ther…

This study tests an 8-week hybrid exercise program for people with HIV who are at risk for heart failure. Participants attend one supervised session at a center and do two unsupervised home workouts each week, plus receive education and coaching. The goal is to see if this approa…

This study tests whether adding a program that targets sleep and stress (called RESST) to standard cardiac rehabilitation helps heart patients recover better. About 200 adults with heart conditions who also have poor sleep or high stress will take part. Researchers will measure s…

This study tests whether a special exercise bike that connects to video games can help children aged 10-18 who have had a heart transplant get more fit. Ten kids will use the MedBIKE at home for 12 weeks, doing short bursts of intense exercise. The main goal is to see if the prog…

This study tests a 12-week home-based tai chi program for people with chronic heart failure and their caregivers. Participants learn tai chi through videos and online coaching, aiming to improve heart function and reduce caregiver burden. The trial enrolls 256 sedentary adults wi…

This study tests a nurse-led home care program for people with advanced heart failure and their family caregivers in rural Appalachia. The program uses faith-based nurses and local volunteers to improve quality of life and reduce symptoms. About 208 patients and their caregivers …

This international study tests whether a smartphone game called Heart Farming can help inactive heart failure patients sit less and move more. 750 participants will either get standard activity advice or the game, which rewards walking with virtual farm products. The goal is to s…

This study tests a digital support program for 240 adults with heart failure. The program, accessed via a secure online portal, aims to help patients feel more in control of their condition and improve their quality of life. Participants use the program for six months, and resear…

This study tests whether a low dose of colchicine, an anti-inflammatory drug, can improve exercise capacity in people with heart failure and chronic inflammation. Sixty participants will be randomly assigned to receive either colchicine or a placebo for three months. Researchers …

This registry study will enroll 200,000 high-risk cardiac patients to see how well an AI platform called Willem can detect heart problems from standard ECGs. The AI's readings will be compared to expert cardiologist diagnoses, but the AI results won't be shared with doctors, so p…

This study is testing whether a special type of imaging called FAPI can better predict how much heart function will improve after bypass surgery or stenting in people with ischemic heart failure. Researchers will follow 122 patients for 12 months, measuring changes in heart pumpi…

This study tests whether ultrasound scans can detect leftover fluid in the lungs and veins of people hospitalized for heart failure. About 580 adults will get scans at several points during their stay, but doctors won't see the results. Researchers will then track who is readmitt…

This study aims to learn more about how diseases related to blood clots, the immune system, and blood vessels start and change over time. Researchers will enroll up to 1,000 people aged 5 and older, including those with these conditions, their healthy relatives, and healthy volun…

This registry tracks 2,000 adults with congenital heart disease who are on the waiting list for a heart or heart-lung transplant. The goal is to understand why some patients get worse or die while waiting, while others improve enough to be removed from the list. By collecting dat…

This study aims to learn more about heart and blood vessel diseases by observing people who have them or are at risk. Researchers will collect samples and perform tests like imaging and stress tests on up to 5,000 participants, including healthy volunteers and relatives of affect…

This study will test how the heart drug empagliflozin is absorbed and processed in 10 children with Duchenne muscular dystrophy, ages 8 to 18. The goal is to find the best dose for protecting the heart in this rare disease. Participants will take the drug by mouth and have blood …

This early-stage study tests a new drug called CDR132L in 32 healthy adults. Researchers want to see how much of the drug gets into the blood when given as a shot under the skin compared to an IV drip. The goal is to find the best way to give this medicine to people with heart fa…

This study looks at whether a person's genetic makeup can predict how well they respond to the heart failure drug metoprolol. Researchers will give the drug to 100 people with heart failure and track their heart function and drug levels. The goal is to see if a genetic score can …

This study will observe 1000 people who receive BIOTRONIK pacemakers for conditions like slow heartbeat or heart failure. The goal is to see how well the devices work in everyday medical practice, focusing on safety and performance over time. Researchers will track device-related…

This study creates a large database of about 12,000 people with and without heart disease. Researchers collect medical information and blood samples to analyze factors that influence heart conditions like coronary artery disease, heart failure, and stroke. The goal is to better u…

This early-stage study tests the safety and how the body processes a new drug called HRS-7156 in 66 healthy adults aged 18 to 55. The goal is to check for side effects and measure drug levels in the blood, not to treat heart failure. Participants must be healthy and not take any …

This study will screen 3,000 adults with heart disease (coronary artery disease, atrial fibrillation, or heart failure) to see how many also have COPD, a serious lung condition. Doctors and patients will receive education on managing both heart and lung problems together. The goa…

This study is testing a non-invasive device that uses sensors placed on the chest to monitor heart failure patients during their hospital stay and for 90 days after discharge. The goal is to see if the device's measurements can help predict which patients are at higher risk of be…

This study is testing a skin patch called MyHeartSentinel that records heart electrical and mechanical signals in people with heart failure. Researchers want to see if the patch can detect early signs of a worsening episode (decompensation) while patients are in the hospital and …

This study tests a new PET scan technique to better track heart damage in people with a condition called ATTR-CM, a progressive heart muscle disease. Researchers will scan 140 participants to see if the imaging can show how well treatments are working. The goal is to improve moni…

This study looks at 110 patients aged 80 and older who are in the hospital for acute heart failure. Researchers will use ultrasound and blood tests to measure muscle loss (sarcopenia) and see how it affects their recovery over six months. The goal is to find better ways to predic…

This study tests whether pacing the heart to mimic the speed of a workout can improve heart function in people with heart failure. Fifty-two adults with a weak heart and an implanted defibrillator will receive either active pacing or a sham (fake) pacing for 6 weeks. Researchers …

This study looks at medical records of 1,000 older heart patients in Russia to see if they were prescribed potentially harmful medications during the COVID-19 pandemic. Researchers will use a medical database to count how often these risky prescriptions happened and check for dan…

This study is creating a large collection of blood, urine, stool, and heart tissue samples from 10,000 people with and without heart or metabolic conditions. The goal is to store these samples along with medical information to speed up future research into what causes these disea…

This study is testing whether simple nutritional checks before heart surgery can predict how well patients recover. Researchers will give 250 patients questionnaires, blood and urine tests, and measure grip strength and body composition. They will then see if these measures are l…

This study aims to uncover the genetic causes of cardiomyopathy in children by analyzing DNA from affected individuals and their families. Researchers hope to identify mutations that lead to different types of cardiomyopathy, which could improve genetic counseling and deepen unde…

This study looks at whether training doctors on quickly starting and adjusting heart failure medications (called GDMT) during a hospital stay leads to better treatment after discharge. About 438 adults with heart failure and reduced ejection fraction will be observed across multi…

This study looks at whether people with heart failure can reduce their intake of ultra-processed foods (like packaged snacks, sugary drinks, and fast food) and whether doing so improves their health. Participants will track their meals using a smartphone app and receive coaching …

This study tests whether a new referral program helps more Veterans with heart conditions get into cardiac rehabilitation. Researchers will compare referral and attendance rates before and after the program starts at three VA hospitals, involving 816 participants over 12 months. …

This study observes 1350 Korean adults with chronic heart failure who are prescribed Verquvo by their doctors. Researchers will track side effects and heart-related events over up to 12 months to see how safe and effective the drug is in everyday use. No experimental treatments a…

This study looks at whether breast cancer patients on HER2-targeted therapy can safely have fewer heart tests. Currently, patients get heart scans every three months, but most don't change treatment. Researchers will test a personalized schedule based on heart risk, comparing it …

This study collects data from wearable devices like Fitbit and Apple Watch to learn about daily habits and health in people with or at risk of heart failure. Researchers will combine this data with medical records to find patterns that might predict health problems. The goal is t…

This study looks at whether a program called ADAPT, where nurses and social workers call people with heart failure weekly to help manage symptoms and improve well-being, can work outside of a research setting. The program aims to reduce hospital visits and improve quality of life…

This study follows 1,400 Japanese adults with chronic heart failure to see how safe the drug vericiguat is in everyday use. Half will take vericiguat plus standard care, the other half standard care alone. Researchers will track side effects, blood pressure, and heart-related dea…

This study aims to measure how well infants' hearts can make new muscle cells, especially in those with a heart condition called Tetralogy of Fallot. Researchers will use a special imaging technique on heart tissue that is normally removed and thrown away during surgery. The goal…

This registry will collect health information from 8,000 patients with cardiogenic shock, a life-threatening condition where the heart suddenly can't pump enough blood. Researchers will track what treatments patients receive and how they fare, including survival rates in the hosp…

This study looks at whether people with type 2 diabetes, COPD, or heart disease who join a health program in Halsnaes Municipality improve their physical function and well-being. About 194 adults will be tracked before and after the program using tests and questionnaires. The goa…

This study is collecting medical information and blood/urine samples from 9,500 people with various heart and blood vessel conditions, plus healthy volunteers, over 20 years. The goal is to find better ways to diagnose heart disease and predict how patients will do in the future.…

This study is a large registry that will follow about 1,700 people with obstructive hypertrophic cardiomyopathy in the US and Europe. Researchers will track how patients respond to mavacamten or other standard treatments in real-world settings, focusing on safety and effectivenes…

This early-phase study is testing whether omega-3 fatty acids can reduce inflammation in the heart muscle of people with heart failure with preserved ejection fraction (HFpEF). Researchers will use special MRI scans before and after an iron-based infusion to detect changes in inf…

This study looks at how people with ME/CFS (chronic fatigue syndrome) and people with heart conditions feel after a bike exercise test. Researchers want to see if the type and timing of symptoms after exercise are different between the two groups. 80 adults will take part, and th…

This study follows 300 people who had hospital-acquired pneumonia to see how it affects their heart and lungs over 18 months. Researchers will take blood samples, swabs, and perform heart and lung tests to understand the link between pneumonia and later cardiovascular problems li…

This study tracks over 16,000 teens and adults with severe asthma to see if the drug tezepelumab raises the risk of serious heart problems like heart attack, stroke, or heart-related death. Researchers will compare those taking tezepelumab to those on standard asthma treatments. …

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 is testing whether a detailed analysis of an electrocardiogram (ECG) can give doctors more information about patients hospitalized with acute heart failure. Researchers will look at how the ECG results relate to lab tests and patient outcomes over one year. The goal is…

This study tests a training program that teaches advanced practice providers (like nurse practitioners and physician assistants) in the emergency department how to use a portable ultrasound to check the heart. About 75 providers will take a simulation course, then use the ultraso…

This study looks at 200 people with heart failure who are getting a left ventricular assist device (LVAD), a type of heart pump. Researchers will use a special 3D ultrasound during surgery to take detailed pictures of the right side of the heart. The goal is to better understand …

This study looks at 500 adult survivors of childhood cancer to see if a newer type of heart ultrasound, called speckle tracking, can find heart problems earlier than the usual method. Researchers want to know if this technique can detect heart damage sooner, which could help with…

This study examines why fat accumulates in the right ventricle of people with pulmonary arterial hypertension (PAH) and how it affects heart function and exercise ability. Researchers will use MRI and blood tests in 75 adults with PAH to track changes over time. The goal is to be…

This study will follow 2,500 elderly people (ages 65-80) in rural China who have atrial fibrillation, a common heart rhythm problem. Researchers will screen them for heart failure using blood tests and heart ultrasounds, then check on them every three months to see how their cond…

This early-stage study tests the safety of a new oral drug called HRS-5765, which may one day treat heart failure. About 74 healthy adults aged 18-65 will receive single or multiple doses to see how the drug moves through the body and if it causes side effects. No direct treatmen…

This study follows 60 kidney transplant recipients in Denmark to find out how often blood vessel problems cause poor kidney function or hard-to-treat high blood pressure. Participants will get special imaging tests, and if a narrowed artery is found, they may receive balloon trea…

This study tests whether wetting the skin or wearing a water-soaked T-shirt can help people with heart failure stay cooler and reduce stress on the heart during hot, dry conditions. Researchers will expose 88 participants (half with heart failure, half healthy) to simulated heat …

This observational study looks at whether removing excess fluid from the body (diuresis) can reduce sleep apnea severity in adults hospitalized with heart failure. Fifty participants will wear a sleep monitor before and after fluid removal, and researchers will track changes in n…

This study aims to understand why some heart failure patients do not respond well to diuretics (water pills). Researchers will give 75 heart failure patients different doses of a diuretic called bumetanide and measure how their kidneys handle sodium. The goal is to identify biolo…

This study looks at why some people with heart failure don't get rid of excess fluid with standard water pills (diuretics). Researchers will test adding two other types of diuretics—bendroflumethiazide and amiloride—to see if they improve the body's response. Fifty adults with he…

This study uses three wearable devices—a continuous glucose monitor, a heart monitor, and an activity tracker—to see if high blood sugar is linked to heart problems in people with Duchenne muscular dystrophy. Researchers will compare 80 participants with and without DMD. The goal…

This study looks at why some people with heart failure don't respond well to diuretics (water pills). Researchers will give 50 participants either ammonium chloride or a placebo, along with standard diuretics, to see how it affects kidney function. The goal is to understand the b…

This study looks at whether CD34+ stem cells, which help maintain tiny blood vessels in the heart, are linked to how well the heart recovers in people with Takotsubo syndrome (also known as broken heart syndrome). Researchers will measure heart function in 40 participants at the …

This study is collecting high-quality ECG data from 1000 people with heart failure to build a library that could help develop a tool to track disease progression. Participants will also share their experiences with standard heart failure care and procedures. The goal is to improv…

This study is observing 400 adults with advanced heart failure who have received a continuous-flow ventricular assist device (VAD), a mechanical pump that helps the heart circulate blood. Researchers will track survival rates in the hospital and at one and five years after implan…

This study follows 1,000 adults with chronic heart failure to learn what factors influence their health outcomes, such as heart-related death or unplanned hospital visits. Researchers will collect data on genetics, gut bacteria, environment, and other markers. The goal is to bett…

This study is testing whether artificial intelligence can predict if someone will develop one of five common diseases: diabetes, heart disease, breast cancer, back pain, or arthritis. Researchers will collect health data from 1,000 adults aged 30 to 60, including medical records,…

This study at Yale University is testing whether the body can store sodium without holding onto extra water, a concept called 'water-free sodium storage.' Ten adults on peritoneal dialysis with heart failure will receive either a special dextrose solution or standard dialysis flu…

This study is testing whether wearable devices and home monitors can safely track the health of children with heart failure. One hundred kids aged 8 to 18 from four Canadian hospitals will use a chest band, blood pressure cuff, pulse oximeter, and scale for 12 weeks. The goal is …

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 looks at how social factors like race, income, insurance, and community distress affect whether heart failure is caught early and treated properly. Researchers will follow 1,000 adults at risk for heart failure, using blood tests and heart ultrasounds to make diagnoses…

This study looks at how the changing seasons impact physical activity in people with heart failure who have a cardiac implantable electronic device. Researchers will measure activity levels using a wrist-worn accelerometer and questionnaires over a full year. The goal is to under…

This study explores whether a person's genetic makeup can guide how doctors prescribe beta-blockers for heart failure with mildly reduced pumping ability. Ten participants will receive beta-blocker therapy guided by their polygenic score, and researchers will measure changes in h…

This study uses advanced heart MRI to see how bariatric surgery and cardiac rehabilitation change the heart's structure and function. Researchers will scan 150 adults before and 6-12 months after these metabolic treatments. The goal is to understand how the heart adapts to these …

This study looks at whether breathing a low-density helium-oxygen gas mixture can reduce breathlessness and improve exercise capacity in people with heart failure with preserved ejection fraction (HFpEF) and obesity. Researchers will measure how much oxygen the body uses during b…

This study tests whether an AI tool called EchoGo can help doctors spot early signs of heart failure in people with type 2 diabetes who have no symptoms. Researchers will send alerts to doctors about patients at risk, and see if this leads to more prescriptions of heart-protectin…

This study tests whether MRI can accurately measure fluid buildup in the lungs of people hospitalized for acute heart failure. Researchers will track 300 patients from admission to discharge to see how lung water changes with treatment and whether these measurements can predict w…

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 monitors how long Medtronic heart devices (like pacemakers) last and how often they have problems. It includes up to 20,000 people who have or will get one of these devices. The goal is to collect real-world data to improve future device safety and performance.

This study uses advanced MRI to measure the fat around the heart in people with a type of heart failure called HFpEF. Researchers want to see if the fat's composition, not just its amount, is linked to disease severity. They will also test if a diabetes drug called semaglutide ch…

Researchers at the University of Calgary are testing a new, non-invasive way to assess heart function using a handgrip exercise. The study involves 100 adults, half with heart failure and half without. Participants squeeze a device with maximum force for two minutes while sensors…

This study looks at whether a special heart failure care network can help people who were recently in the hospital for worsening heart failure. About 1000 adults with moderate to severe heart failure will take part at five heart centers in Germany. Half will get extra support fro…

This study aims to develop and test new MRI methods for imaging the heart and blood vessels to improve diagnosis and management of heart disease. It will enroll up to 3,400 adults, including both patients with heart conditions and healthy volunteers. Participants will undergo MRI…

This study is testing whether using a blood test called NTproBNP can help doctors decide the best time to discharge patients hospitalized with worsening heart failure. 750 participants will be randomly assigned to either a biomarker-guided discharge plan or usual care. The goal i…

This study uses advanced MRI scans with a special manganese dye to look at how the heart handles calcium and energy in people with heart failure with preserved ejection fraction (HFpEF). Researchers will compare 40 people with HFpEF (half with type 2 diabetes) and 20 healthy volu…

This study is recruiting 130 people with heart failure with preserved ejection fraction (HFpEF), both obese and non-obese. Researchers will use CT and MRI scans, blood tests, and other checks to see if having more fat around the heart leads to worse heart function. The goal is to…

This study is building a huge database of up to 800,000 Korean patients with heart or brain vascular disease. By tracking their health over many years, researchers hope to understand the unique patterns and risk factors in this population. The goal is to create a platform that ca…

This study tests whether regular heart failure symptom questionnaires delivered by a chatbot can detect worsening health early. 120 people with heart failure will answer questions every two weeks for a year. The goal is to see if this approach is practical and if changes in score…

This study is creating a large biobank of blood, DNA, plasma, and tissue samples from 15,000 people with and without heart and aortic diseases. Researchers will use this information to better understand conditions like aortic aneurysm, heart failure, and bicuspid aortic valve. Th…

This study is testing a special PET scan that uses a tracer called 68Ga-FAPI to look for inflammation and scarring in the hearts of people with a specific type of heart failure (HFpEF). About 35 adults with this condition will get the scan to see how well it works. The goal is to…

This study aims to create a digital decision-making aid for older adults with heart failure who are considering getting an implantable cardioverter-defibrillator (ICD). The tool will help patients weigh the benefits of preventing sudden cardiac death against the downsides of the …

This study aims to develop better MRI methods for imaging the heart and brain, and to describe heart diseases using these new techniques. It will also investigate whether gadolinium, a common MRI contrast agent, stays in the body long after use. Up to 5,000 healthy volunteers and…

This study follows 100 people newly diagnosed with esophageal cancer in Hungary. Researchers will track heart function, nutrition, physical ability, and mental health before and after surgery. The goal is to find which factors are linked to better survival and quality of life, so…

This study looks at two ways to teach medical residents how to use a special ultrasound technique (VExUS) to check for fluid overload in patients with acute heart failure. About 23 residents will be trained either in-person or remotely, and their ultrasound skills will be compare…

This study is looking for tiny molecules in the blood called microRNAs that can help doctors tell if a heart transplant patient's immune system is too active (causing rejection) or too weak (causing infection). Researchers will follow 250 adult heart transplant recipients for one…

This study tests whether a machine-learning model can predict serious heart events in children admitted to the hospital. The model alerts doctors when a child may need a palliative care consultation. Researchers will compare outcomes before and after the model is used, involving …

This study looks at why veterans with a common type of heart failure (HFpEF) have trouble exercising due to poor blood flow in their leg muscles. Researchers will compare 35 veterans with HFpEF to healthy volunteers, then have the veterans do 8 weeks of knee exercises to see if i…

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 how severe obesity can lead to a type of heart failure called HFpEF, where the heart becomes stiff and has trouble filling with blood. Researchers will study 250 people with obesity using heart ultrasounds and blood tests to find early signs of heart problems.…

This study looks at how often cardiac amyloidosis—a condition where abnormal proteins build up in the heart—occurs in people aged 80 and older who have been hospitalized for heart failure. Researchers will use bone scans to detect the condition in 637 participants. The goal is to…

This study follows 500 people with a type of heart failure called HFpEF (heart failure with preserved ejection fraction) for at least 3 years. Researchers want to find out which medical signs or test results can predict serious problems like hospitalization or death. No new treat…

This study looks at how a specific biological pathway (BMPR2-activin) affects pulmonary hypertension in people with left heart disease. Researchers will follow 150 heart failure patients for one year, using blood tests, imaging, and heart tissue analysis. The goal is to better un…

This study aims to find early signs of heart failure in women who had preeclampsia, a pregnancy complication involving high blood pressure. Researchers will use exercise stress tests and heart imaging to compare 250 women with a history of preeclampsia to 250 women with normal pr…

This study looks at why some heart failure patients choose to join programs that help coordinate their care after leaving the hospital, like the PRADO-IC program or telemedicine monitoring. Researchers will follow 700 patients in France to see what factors—such as social, cultura…

This study aims to create a tool that uses stress heart MRI and routine medical data to predict which patients with dilated cardiomyopathy (a weakened, enlarged heart) are at highest risk for serious problems like heart failure or sudden cardiac death. Researchers will follow 2,0…

This study looks at 26 people with severe heart failure who are in cardiogenic shock, a life-threatening condition where the heart can't pump enough blood. Researchers will measure specific markers in the blood related to inflammation and blood vessel health. The goal is to bette…

This study looks at how heart failure may cause changes in brain structure. Researchers will measure brain volume and heart function in 100 adults with heart failure. The goal is to understand the link between heart health and brain health. No treatment is given; this is an obser…

This study looks at how dapagliflozin, a diabetes drug, affects heart function and metabolism in people with chronic kidney disease. Researchers will measure heart strain, oxygen use during exercise, and blood chemicals in 60 adults. The goal is to understand how the drug works b…

This study looks at how small blood vessels work in people who have had a heart transplant. Researchers will use a non-invasive laser device to measure skin blood flow. The goal is to learn more about heart health after transplant, not to test a new treatment. About 31 participan…

This study is testing a new device called HemoCept during a standard heart procedure called right heart catheterization. The goal is to see if the device can accurately measure pressure in the heart's blood vessels. About 50 adults with conditions like pulmonary hypertension or h…

This study is looking at 1,000 people with and without heart failure to better understand the different types of the condition. Researchers will use heart images and blood tests to find patterns that could lead to more personalized treatments. The goal is to improve care for peop…

This study is collecting information from 20,000 people with chronic heart failure in Russia to understand how they are diagnosed, treated, and monitored. Researchers will look at patient ages, treatments, and hospital visits. The goal is to find gaps in care and improve future t…

People with serious mental illness often have undiagnosed physical conditions like heart disease, diabetes, and cancer. This study tests whether adding routine physical health checks to psychiatric care helps find and treat these hidden illnesses. About 2,800 adults in Denmark wi…

This study looks at heart tissue from 180 people with a type of heart failure called HFpEF. Researchers take tiny samples of heart muscle during a routine procedure to find changes in the tissue. The goal is to learn what causes this condition so better treatments can be develope…

This study creates a large collection of blood, tissue, and medical information from up to 5,000 people with or at risk for pediatric heart disease. Researchers will use these samples to better understand the disease and find new ways to diagnose or treat it in the future. Partic…

This study is collecting blood and other samples from 5,000 children and young adults (under 21) who are already taking certain medications as part of their regular care. The goal is to understand how these drugs move through and affect children's bodies, so doctors can prescribe…

This study follows 400 adults diagnosed with pulmonary embolism (a blood clot in the lungs) at a Swedish hospital. Researchers will repeatedly check heart tests and blood markers during the first 48 hours to see if early changes can better predict who will worsen. The goal is to …

This study looks at how a common diabetes drug (SGLT2 inhibitor) changes the way the heart and muscles use energy from ketones. Researchers want to see if these changes can improve exercise ability and daily function in 30 adults with type 2 diabetes and heart failure. Participan…

This observational study will follow 600 adults hospitalized with acute heart failure or cardiogenic shock. Researchers will collect information from routine care, plus extra blood and urine samples, to see if they can better identify different types of shock and predict who is a…

This study measures how hard children with conditions like neuromuscular disease, scoliosis, or heart problems work to breathe. Researchers use a thin tube placed through the nose into the esophagus to measure breathing muscle strength and effort. The goal is to better understand…

This study is observing 1,000 people hospitalized with acute heart failure to learn how to better predict their outcomes. Researchers will use blood tests, imaging, and other measurements to identify different patient types. The goal is to improve future treatment and care for th…

This study looks at tiny structures inside heart cells called mitochondria in people with heart failure and clogged arteries. Researchers will take small heart tissue samples during bypass surgery and compare them with blood tests. They want to see if damaged mitochondria are lin…

This registry is collecting information from 8,000 people undergoing heart or chest surgery. The goal is to see how factors before and during surgery relate to serious complications like death, shock, or infection. By analyzing this data, researchers hope to find ways to improve …

This study looks at whether people with stable heart failure whose heart function has improved can safely stop taking a type of medication called a mineralocorticoid antagonist (MRA). Researchers will monitor 90 participants over 24 weeks to see if stopping the drug leads to a de…

This study will use a mobile MRI truck to screen 600 people in large German cities who have risk factors like diabetes, high blood pressure, or obesity but no heart failure symptoms. The goal is to find out how many have hidden (stage B) heart failure. Results will be compared to…

This study is testing a tool called B-COMPASS that uses a 22-question survey to predict whether people will follow their prescribed treatments. Researchers will enroll 3100 adults with cardiovascular, endocrine, immune, nerve, cancer, or rare diseases across Europe. The goal is t…

This study is for adults with advanced heart failure who are getting a mechanical heart pump (LVAD). Researchers want to see if a substance in the blood called GDF-15 can help predict early complications or death after surgery. The goal is to better identify high-risk patients be…

This study aims to find early warning signs of heart failure in people with type 2 diabetes and metabolic syndrome by analyzing immune cells from a blood sample. Researchers will compare calcium and inflammation signals in these cells between patients with and without heart probl…

This study is testing whether giving probiotics after heart surgery can improve recovery by changing the bacteria in the gut. Researchers will measure certain chemicals in the blood that come from gut bacteria. The trial involves 30 adults scheduled for heart surgery, who will re…

This study looks at how the brain, nerves, and blood vessels interact in 80 adults having heart surgery. Researchers will measure brain activity, blood flow, and heart reflexes to better understand the link between heart disease and depression. The goal is to develop new tools fo…

This observational study at Imperial College London will enroll 70 people undergoing heart catheterization to understand why some patients tolerate ventricular tachycardia (VT) better than others. Researchers will measure blood pressure and blood flow in the heart during simulate…

This pilot study is testing whether a 12-week monitored exercise program can improve heart health in veterans with a type of heart failure called HFpEF. Only 4 participants are being enrolled to see if the facility can support a larger study and if exercise shows any benefit with…

This study is looking at tiny molecules called microRNAs in the blood of children who have had a heart transplant. The goal is to find patterns that can predict which children are at risk for infection or rejection of the new heart. By understanding these patterns, doctors hope t…

This study follows 500 people with cardiogenic shock, a life-threatening condition where the heart suddenly can't pump enough blood. Researchers will collect data from four specialized centers to understand what treatments work best and why some patients do better than others. No…

This study looks at why postmenopausal women have a higher risk of diastolic heart failure. Researchers will examine heart tissue from 500 patients undergoing cardiac surgery to study how estrogen loss affects heart energy and blood vessel health. The goal is to better understand…

This study is building a large collection of blood samples and health information from 5,000 adults with congenital heart disease and related conditions. Researchers will use this data to better understand how these diseases work and what affects patient health. No treatments or …

This study compares two drug combinations (ketamine-lidocaine vs ketamine-fentanyl) used to put patients to sleep before heart bypass surgery. The goal is to see which combination better maintains blood flow to the brain during the procedure. The study includes 40 adults with cor…

This study follows 160 heart failure patients who are scheduled for coronary artery bypass surgery. Researchers want to see if measuring a substance called GDF-15 in the blood before surgery can help predict who will have serious heart problems in the next year. The study does no…

This study is testing new heart MRI techniques to see how the heart adapts to stress, like exercise or fluid changes. Researchers will study 135 healthy volunteers and people with heart conditions. The goal is to improve understanding of heart function and develop better diagnost…

This study is re-examining 1,400 adults in Stockholm to find early signs and risk factors for heart, lung, and liver diseases. Participants will get advanced scans, blood tests, and questionnaires. The goal is to better understand how these diseases develop and how to predict the…

This study collects blood samples from 1500 adults at risk for heart disease to discover new biomarkers that can predict future heart attacks, strokes, or blocked leg arteries. Participants are seen at a specialized prevention center and provide samples and health data at the sta…

This study aims to develop a machine learning tool to predict heart damage in 600 cancer patients receiving certain chemotherapy drugs (anthracyclines or HER2-targeted therapies). Researchers will collect data over one year to see who develops heart problems. The goal is to creat…

This study is testing whether a special wearable device, combined with artificial intelligence, can help people with chronic heart failure avoid hospital visits. About 205 adults will wear the device for six months while their health data is monitored remotely. The goal is to see…

This study looks at 360 adults hospitalized with acute heart failure who also have possible respiratory virus symptoms. Researchers will test for viruses like flu, RSV, and coronavirus using a nose swab. The goal is to see how often these viruses are present and whether they affe…

This study tests a noninvasive light sensor placed on the thumb to measure oxygen levels in children with heart failure. Researchers want to see if these measurements can show how severe the heart failure is. The study will enroll 130 children and young adults under 25 who are st…

This study aims to develop a way to predict when congestive heart failure suddenly worsens, using data from a non-invasive wearable device. About 60 adults who already have a heart monitor implant will wear the device for up to a year. Researchers will look for patterns in the we…

This study follows 2,000 people with chronic heart failure to see how their physical activity levels relate to hospitalizations and survival. Participants wear a pedometer or smartwatch and answer activity questionnaires every six months. No new treatment is given—the goal is sim…

This study is looking for early warning signs in the blood that could predict chronic heart failure in people with type 2 diabetes. Researchers will follow 500 participants over time, using heart scans and blood tests to see if certain biomarkers can spot trouble before symptoms …

This study uses magnetic resonance spectroscopy, a special MRI technique, to measure the heart's energy levels without needles or biopsies. Researchers will compare healthy volunteers, people with heart failure, and those with other heart conditions to see if low energy metabolis…

This study is looking at people with pulmonary arterial hypertension (PAH), those with a genetic risk but no disease, and healthy individuals. Researchers aim to find molecular and physical markers that explain why some people get PAH and others stay healthy. The goal is to impro…

This study looks at why people with a type of heart failure (HFpEF) have trouble exercising. Researchers will measure energy use in the heart and leg muscles using special scans. They aim to link these energy problems to how well patients can walk and exercise. The study does not…

This study tests whether a single PET tracer (FDG) can measure both blood flow and sugar use in the heart, instead of needing two separate tracers. Researchers will compare results from FDG with a dedicated flow tracer in 60 healthy adults and people with heart disease. The goal …

This study creates a live registry of up to 40,000 heart failure patients across the Yale New Haven Health System. Researchers will track hospitalizations and use of recommended therapies like beta blockers and ACE inhibitors. The goal is to monitor and improve heart failure care…

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 will have up to 10,000 adults wear a smartwatch for one year to collect health data like heart rate and activity. Participants will also answer questions through a phone app. The goal is to see if smartwatch data can help doctors spot heart problems earlier. No drugs o…

This study looks at whether a structured education program helps heart failure patients understand their condition and practice self-care. About 1000 adults hospitalized for heart failure will take part. They attend a one-hour interactive session led by doctors and nurses, then c…

This study observes 500 adults in intensive care with acute respiratory distress syndrome (ARDS) who are on mechanical ventilation. Researchers will use heart ultrasounds and medication data to track how often right heart failure occurs and how it changes over time. The goal is t…

This pilot study at Mayo Clinic will use cardiac MRI scans to examine how the heart's main pumping chamber changes in people with severe mitral regurgitation before and after valve repair surgery. The goal is to see if this approach can help identify patients at risk of developin…

This study enrolls 60 heart failure patients who already have an implanted sensor to measure lung artery pressure. Participants record their voice daily for 3 months using a smartphone app. After the study, researchers will use artificial intelligence to see if voice changes can …

This study looks at whether certain proteins in the blood can predict if someone with chronic heart failure will develop kidney problems (cardiorenal syndrome). Researchers will measure these proteins in 150 adults with heart failure and follow them for one year. The goal is to f…

This study looks at whether pharmacist-led medication checkups and easy-to-understand education can help people with heart failure get the right medicines. It involves 40 patients in Denver who have limited access to care. The goal is to see if this approach is practical and impr…

This study tests a program called Heart-to-Heart, where community health workers help low-income patients make informed choices about cardiac rehab after a heart event. About 50 adults from Johns Hopkins Hospital will take part. The goal is to see if the program is practical and …

This study uses a special heart MRI to see if a device called a coronary sinus reducer can improve blood flow in patients with heart failure with preserved ejection fraction (HFpEF) and coronary microvascular dysfunction (small vessel disease). The device is implanted to reroute …

This study looks at whether early heart ultrasound results can predict which patients hospitalized with heart failure will need to return to the hospital or have a higher risk of death. Researchers will measure heart structure and function before starting IV diuretics in 76 adult…

This study tests whether heart failure patients can safely drink as much fluid as they want instead of restricting it. Researchers will compare lung congestion, blood markers, quality of life, and hospital readmissions in 326 participants over time. The goal is to see if liberal …