Cardiogenetic disease

This study will test whether living in a self-contained, AI-managed community (called a Microcity) can improve mental health and reduce addiction in adults with conditions like autism, ADHD, substance use disorders, and behavioral addictions. Up to 1 million participants will liv…

This trial investigates whether guanfacine or cromolyn sodium—two drugs already approved for other conditions—can improve physical functioning and reduce symptoms like fatigue, brain fog, and gastrointestinal issues in adults with postural orthostatic tachycardia syndrome (POTS).…

This study follows people with moderate to severe pulmonary regurgitation or stenosis who receive the PULSTA transcatheter pulmonary valve, a less invasive option for replacing a faulty heart valve. Researchers will track how well the valve works over time, measuring improvements…

This study tests the long-term safety and effectiveness of an experimental oral drug called S-606001 in adults with late-onset Pompe disease, a genetic condition that causes progressive muscle weakness. Participants who completed a prior S-606001 study can join, and they will rec…

This trial tests an investigational medicine called ATR 1072 in adults with PRKAG2 syndrome, a genetic condition that causes abnormal heart muscle thickening and rhythm problems. The drug is designed to reduce the activity of the faulty PRKAG2 gene. Researchers are evaluating its…

This trial tests whether a procedure called pulsed field ablation can safely treat ventricular arrhythmias—abnormal heart rhythms that can be life-threatening. About 30 people with frequent premature heartbeats or ventricular tachycardia will receive the treatment using a special…

This trial tests a new suture system designed to close a patent foramen ovale (PFO), a small hole in the heart that can increase stroke risk. Researchers will compare the new device to an existing occluder in about 244 adults aged 18 to 65 with moderate-to-large PFOs. The goal is…

This study looks at how well a device can close a common heart hole called a ventricular septal defect (VSD) in children aged 6 months to 18 years. Instead of open-heart surgery, doctors use a small tube to place a device that plugs the hole. The goal is to see if this method is …

This study tests a newer, more natural pacing method for people with heart failure and electrical problems in the heart. The approach uses the heart's own conduction system to improve coordination between chambers. Researchers will track patients for two years to see if this meth…

This study tests whether pelvic floor muscle training (PFMT) with a handheld biofeedback device can improve erectile function and sexual quality of life in men with functional hypogonadism (low testosterone) and erectile dysfunction. Participants are randomly assigned to PFMT wit…

This study tests whether a wearable monitoring system (ECG patch, temperature patch, and pulse oximeter) can reduce major heart complications in hospitalized patients with heart disease. About 1500 adults will be monitored either with standard care (vital signs every 4-8 hours) o…

This trial tests a new device called Absnow II that closes a common heart hole (atrial septal defect) and then dissolves over time. About 236 people with a hole between 5 and 26 mm will get either the new device or a standard one. The goal is to see if the new device works just a…

This trial is for people whose surgically implanted aortic heart valve has stopped working properly. It compares two types of replacement valves placed through a tube in the leg (TAVI): a newer self-expanding valve (Hydra) versus standard balloon-expandable valves (Sapien or MyVa…

This study tests whether a drug called a PCSK9 inhibitor (Tafolecimab) can slow the progression of mild to moderate calcific aortic stenosis, a condition where the heart valve narrows and hardens. Researchers will give the drug to half of 160 participants and compare changes in v…

This study compares two medical devices used to close a small hole in the heart called a PFO, which can cause strokes. About 1,260 adults who have had a stroke or mini-stroke in the past year will be randomly assigned to receive either the Cocoon PFO Occluder or the Amplatzer PFO…

This study tests whether inserting a heart pump (IABP) early, before severe shock develops, can reduce deaths in patients who develop a hole in the heart after a heart attack. The trial will enroll 100 patients across 5 centers, randomly assigning half to receive the pump within …

This large study tests whether closing a common heart hole (atrial septal defect) using only ultrasound guidance and special tools is as good as the standard X-ray method. The goal is to avoid radiation and contrast dye risks, such as cancer and kidney injury. About 666 participa…

This phase 2b trial tests AVTX-801, a D-galactose supplement, in 8 adults with PGM1-CDG, a rare genetic disorder affecting sugar metabolism. Participants currently on D-galactose will receive either the study drug or a placebo to see if it reduces disease-related events like low …

This trial tests a new device called the ArcFlex Sheath, a bendable tube used during TAVR surgery to replace a faulty aortic valve. The goal is to see if it helps doctors position the new valve more easily and safely compared to a standard sheath. About 180 people who need TAVR s…

This study tests a new biodegradable device that closes a common heart hole (PFO) in people who have already had a stroke or mini-stroke. The device is placed through a tube in the leg and dissolves over time, leaving no permanent implant. The trial will check if it safely and ef…

This early study tests whether high-dose vitamin B3 (nicotinamide) can help preserve or improve vision in people with Leber's hereditary optic neuropathy (LHON), a rare genetic disease that causes sudden vision loss. Researchers will give 13 participants 2 grams of vitamin B3 dai…

This study tests a new way to close a common heart hole (atrial septal defect) using only ultrasound, without X-rays or cuts. The procedure is done inside a specially equipped mobile surgical unit, bringing care to remote areas. About 300 people aged 8 and older will take part to…

This small study will test whether empagliflozin, a drug typically used for diabetes, can improve abnormal heart patterns in people with Brugada syndrome. Ten participants will take the drug daily for three months, and researchers will monitor their heart rhythms and any side eff…

This study looks at 115 children aged 6 months to 5 years who have a hole in the heart (VSD) and need surgery. Doctors want to see if an ultrasound probe placed in the food pipe (TEE) can measure heart pressure as accurately as the standard method using a thin tube (catheter) ins…

This study will enroll 5000 adults to see if a one-minute, single-lead ECG, analyzed by machine learning, can detect heart conditions like high blood pressure, heart failure, and diabetes. Participants will have their ECG recorded twice and compared with full medical exams. The g…

This study will test a new device that measures blood pressure and heart function continuously without needles. It will be used during standard autonomic function tests (like the Valsalva maneuver and tilt table) in 75 patients with orthostatic intolerance. The goal is to see if …

This study looks at how CT scans can help doctors identify heart and blood vessel problems in children with Tetralogy of Fallot, a serious heart condition present at birth. About 37 children up to 12 years old will get a CT scan to find hidden issues and help plan surgery. The go…

This study tests whether regular breathing exercises can improve symptoms of Postural Tachycardia Syndrome (POTS), a condition that causes dizziness and rapid heartbeat when standing. Twelve adults with POTS will practice breathing exercises daily for four weeks while researchers…

This study looks at people with migraines who also have a small hole in the heart (PFO). Participants first take a blood-thinning drug (prasugrel) to see if their migraines improve. Those who respond are randomly assigned to either continue the drug alone or have a procedure to c…

This phase 2 trial tests whether mirabegron, a drug currently used for overactive bladder, can reduce symptoms of Postural Orthostatic Tachycardia Syndrome (POTS). Thirty-six adults with confirmed POTS will receive either mirabegron or a placebo. The main goal is to see if the dr…

This study tests whether low dose naltrexone (LDN) can reduce fatigue in people with Postural Orthostatic Tachycardia Syndrome (POTS). Eighty participants will receive either LDN or a placebo for 4 months. The goal is to see if LDN improves fatigue and quality of life.

This pilot study tests a non-invasive ear stimulation device (aVNT) in 30 people with Postural Orthostatic Tachycardia Syndrome (POTS). The goal is to see if it can reduce rapid heart rate upon standing, improve blood flow to the brain, and ease other symptoms like brain fog and …

This study tests whether a four-week virtual yoga program can improve quality of life and reduce anxiety and depression in people going through IVF. About 80 participants will either take weekly yoga classes or continue with their usual care. Researchers will track changes in moo…

This study looks at whether using clear, non-blood fluids to fill the heart-lung machine during surgery can reduce inflammation in infants having a hole in the heart repaired. Sixty babies aged 1 to 18 months will be enrolled. Researchers will measure inflammation markers and rec…

This study looks at whether adding special breathing exercises to aerobic training can improve lung function, exercise ability, and quality of life in adults who had surgery for Tetralogy of Fallot, a heart condition. Sixty participants will be split into two groups: one does bre…

This early-stage trial tests amlodipine, a calcium channel blocker used for high blood pressure, in 20 adults with myotonic dystrophy type 1. The goal is to see if the drug is safe and can improve muscle strength, reduce stiffness, and help with daily function. All participants w…

This study tests two ways to deliver a group training program for caregivers of children with autism in low-resource areas. The program aims to reduce caregiver stress and improve the child's communication and behavior. About 320 caregivers of children aged 2 to 8 will take part.…

This pilot study from Stanford tests whether a stellate ganglion block (a nerve block in the neck) can reduce symptoms of Postural Tachycardia Syndrome (POTS). Twenty adults with POTS will receive either the nerve block or a sham injection. Researchers will track changes in auton…

This study tests a device that stimulates a nerve in the ear to see if it can help people with POTS, a condition that causes a racing heart and dizziness when standing. Twenty-four adults with POTS will receive both active and sham stimulation in a crossover design. The main goal…

This study screens up to 1,000 people with personal or family histories of certain cancers to see if they qualify for ongoing genetics research at the National Cancer Institute. Participants fill out a 15-20 minute online survey about their health and family history. No treatment…

This study investigates how often muscle relaxants used during general anesthesia remain in the body after surgery, a condition called residual neuromuscular blockade. It will follow 160 adults aged 18-90 who are scheduled for post-anesthesia care unit admission after elective su…

This study looks at how a small opening in the heart, called a patent foramen ovale (PFO), affects blood flow and oxygen levels during exercise and simulated high altitude. About a third of people have this opening, which may allow oxygen-poor blood to mix with oxygen-rich blood,…

This study follows people with Multiple Acyl-CoA Dehydrogenase Deficiency (MADD) over time to learn how the condition progresses and affects daily life. Researchers will collect health data and patient feedback to identify patterns and potential markers of the disease. The goal i…

This study follows 100 adults with myotonic dystrophy (types 1 or 2) for two years to understand how muscle stiffness, daily function, and heart health change over time. Researchers will look back at up to 18 months of past medical records and then track participants with clinic …

This study tests a personalized, digitally supported prehabilitation program for adults waiting for elective cardiac surgery. Participants receive education, psychosocial support, nutritional advice, and home-based exercise guidance during the routine 6-10 week preoperative perio…

This study looks at heart function and rhythm in children and young adults up to age 25 who have had surgery to repair Tetralogy of Fallot, a congenital heart defect. Researchers will use echocardiography, a 12-lead ECG, and Holter monitoring to detect changes such as arrhythmias…

This study will follow 100 health science students for at least 10 years to understand why some people with very flexible joints (hypermobility) develop chronic pain, fatigue, and other health issues while others do not. Researchers will measure balance, heart rate, and quality o…

This observational study will follow 200 adults with Brugada Syndrome who need anesthesia for surgery or other procedures. Researchers want to see how often dangerous heart rhythms occur during and up to 30 days after anesthesia. They will also check if certain anesthetic drugs o…

This study follows 10 Chinese adults who have a specific gene mutation (BAG3) linked to dilated cardiomyopathy, a condition where the heart becomes enlarged and weak. Researchers will track changes in heart function, symptoms, and biomarkers over time to better understand how the…

This study looks at 150 people with persistent atrial fibrillation (a type of irregular heartbeat) who are scheduled for a heart procedure called ablation. Researchers want to see if levels of a protein called BDNF in the blood are linked to signs of heart muscle damage (atrial c…

This study checks whether three common ECG-based methods can accurately locate where abnormal heart rhythms start in adults who had Tetralogy of Fallot repair. Researchers will pace the heart from known spots during a scheduled procedure and compare the predicted location to the …

This study aims to collect blood samples from 450 people, including individuals with autism spectrum disorder (ASD), their relatives, and healthy controls. Researchers will isolate cells from the blood to study genetic factors and biological processes linked to autism. The goal i…

This study will test a new ultrasound catheter called VeriSight Pro that takes pictures from inside the heart. Doctors will use it during procedures like closing a hole in the heart or fixing a valve. The goal is to see if it helps guide these procedures safely and effectively. A…

This study looks at 128 adults having gallbladder surgery to see if using a low-flow (more eco-friendly) versus normal-flow sevoflurane anesthesia changes heart electrical signals linked to dangerous rhythms. Researchers will measure these signals before, during, and after surger…

This study looks at how sarcopenia (age-related muscle loss) is connected to fatigue and orthostatic intolerance (dizziness when standing up) in people aged 65 and older. Researchers will compare 90 older adults with and without sarcopenia to see if those with muscle loss experie…

This study looks at how the heart's upper and lower chambers change shape and function after closing a hole called patent ductus arteriosus (PDA) using a catheter-based procedure. It will include 40 people aged 12 and older who are already scheduled for the closure. The goal is t…

This study looks at whether re-sterilized (reprocessed) catheters work as well as new ones for heart ablation procedures. About 200 adults needing this treatment will be randomly assigned to get either a new or a reprocessed catheter. Researchers will compare how long the procedu…

This study looks at whether children who had surgery to close a large hole in their heart (called a VSD) will catch up in growth. Researchers will measure weight, height, and BMI before and after the procedure in 58 children aged 1 month to 2 years. The goal is to see how long it…

This study aims to better understand a condition called multilocus imprinting disorder (MLID), where multiple genes are affected by abnormal chemical marks. Researchers will test a new technique to detect these marks in 96 people, including those with known imprinting disorders a…

This study looks back at medical records of 220 patients who had a procedure called radiofrequency ablation for heart rhythm issues. The goal is to compare how well the procedure works for two types of abnormal heart connections. Researchers hope to find which type is easier to t…

This study is creating a registry for people with Duchenne and Becker muscular dystrophy, as well as symptomatic female carriers. The goal is to collect health data and quality-of-life information to monitor how new therapies work in real-world settings. Up to 1,500 participants …

This study focuses on extremely preterm infants (born before 32 weeks) who have a heart condition called hsPDA. Researchers will collect blood samples and health data to create a model that predicts which infants need treatment. They are also developing a targeted drug-delivery s…

This study will check if people with metastatic breast or colon cancer have antibodies that might also attack the heart. Researchers will collect blood samples and ECGs from 196 participants over 12 months. The goal is to see if these antibodies raise the risk of dangerous heart …

This study looks at 45 adults with migraine and a small hole in the heart (PFO). Researchers will use brain scans and thinking tests to see if closing the hole changes brain activity, mood, and migraine symptoms over a year. The goal is to understand the link between PFO and migr…

This study tests whether rinsing (flushing) ovarian follicles during egg retrieval can increase the number of mature eggs collected for IVF. In 75 women undergoing IVF, one ovary will be flushed and the other will not, and the egg yields will be compared. The goal is to see if th…

This study will measure a specific heart function index in 2,640 healthy adults and people with heart conditions using AI-enhanced 3D ultrasound. The goal is to establish normal ranges and see how this measurement changes in diseases like heart failure and high blood pressure in …

This study looks at why people with Noonan syndrome often bleed easily, especially from the skin, mouth, or nose. Researchers will compare a simple questionnaire about bleeding history with blood tests in 100 patients. The goal is to find better ways to predict serious bleeding, …

This study will check progesterone levels in 659 women on the day of a frozen embryo transfer. The goal is to see how common low progesterone is and whether it is linked to lower pregnancy rates. Participants will have one extra blood draw, and their pregnancy outcomes will be tr…

This study will follow 1,100 people with atrial fibrillation who have a pulsed field ablation procedure. The goal is to find out which patient traits and procedure details make a repeat ablation more likely. Researchers will track heart rhythm problems and side effects for one ye…