SCN5A-related cardiac rhythm disorder

This study tests whether the drug THRV-1268 can safely shorten the heart's electrical recovery time (QT interval) in people with Long QT Syndrome Type 2, a genetic condition that raises the risk of dangerous heart rhythms and sudden cardiac arrest. About 64 participants will take…

This study is testing a pacemaker lead placed in a specific area of the heart called the left bundle branch area. The goal is to see if this placement is safe and helps the heart beat more naturally in people with slow heart rates. About 140 participants will get the lead and be …

This study compares two implantable heart devices—Cardiac Contractility Modulation (CCM) and Cardiac Resynchronization Therapy (CRT)—in people with Chagas heart disease and advanced heart failure. The goal is to see which device better improves quality of life and heart function.…

This study tests whether a two-month hormone pretreatment (GnRH agonist plus letrozole) before standard frozen embryo transfer can improve live birth rates in women with adenomyosis. About 222 participants will be randomly assigned to either the new regimen or standard care. The …

This study tests a pre-set treatment plan for managing heart rhythm issues that can occur after transcatheter aortic valve replacement (TAVR). The goal is to reduce the number of patients who receive a permanent pacemaker while ensuring no one is put at risk of sudden cardiac dea…

This study tests a method to sort sperm by gender (X or Y chromosome) using a density gradient. The goal is to help couples undergoing IVF or insemination have a baby of a desired sex, for medical or personal reasons. About 2000 couples will take part, and researchers will check …

This study compares a new type of heart pacing (His-bundle pacing) to standard pacing in 120 adults with heart failure and right bundle-branch block. The goal is to see if the new method better improves the heart's pumping ability over 6 months. Participants will receive one of t…

This study tests whether a newer pacing method called left bundle branch pacing (LBBP) works better than the standard biventricular pacing for people with chronic heart failure and reduced pumping ability. About 60 adults with heart failure and a specific electrical delay in the …

This study compares two types of portable heart monitors in people who have symptoms of an irregular heartbeat (arrhythmia) but whose standard heart test was normal. About 588 participants will wear either a continuous ECG patch or use a handheld ECG device for one month. The goa…

This study evaluates a new multichannel ECG system designed to detect early signs of cardiovascular disease (CVD) in people who may have no symptoms yet. The system uses advanced algorithms to analyze electrical signals from the heart, looking for subtle abnormalities that could …

This study is testing whether a computer program (machine learning) can help doctors diagnose severe heart attacks in patients who have a heart condition called left bundle branch block (LBBB). LBBB can hide the usual signs of a heart attack on an ECG, making it hard to tell if a…

This study explores whether a quick, painless cheek swab can spot protein changes linked to inherited heart conditions that cause sudden cardiac death in young people. Researchers will collect samples from 26 patients with arrhythmic disorders or family members at risk. If the te…

Researchers are testing whether a pacing technique called left bundle branch area pacing, guided by detailed imaging and electrical data, can improve outcomes for people with heart failure and left bundle branch block. The trial enrolls 100 adults with non-ischemic cardiomyopathy…

This study tests a modified imaging catheter (ViewFlex X ICE) to help doctors see heart structures during procedures for irregular heartbeats. About 500 adults who are already scheduled for a heart procedure using ultrasound will be enrolled. The goal is to see if the new cathete…

This study looks at how a child's quality of life changes after a procedure called transcatheter ablation, which treats abnormal heart rhythms. Researchers will ask 200 children aged 5 to 17 and their parents to fill out questionnaires about physical, emotional, social, and schoo…

This study tests whether inhaling lavender essential oil for four weeks can reduce anxiety, stress, and depression in women waiting for IVF treatment. 120 women will be split into three groups: one using real lavender oil, one using a placebo scent, and one receiving no scent. Th…

This study tests whether pentoxyfilline, a drug that improves blood flow, can thicken the uterine lining and increase pregnancy rates in women with unexplained infertility undergoing frozen embryo transfer. About 100 women with good-quality embryos will receive the drug or a plac…

This study tests whether tadalafil, a drug that improves blood flow, can thicken the uterine lining and increase pregnancy rates in women with unexplained infertility. About 100 women who have good-quality frozen embryos will take tadalafil before embryo transfer. The main goal i…

This study will observe 253 adults with heart rhythm problems who are scheduled for procedures like pacemakers or ablation. Researchers will use advanced imaging and AI tools to understand why some patients respond well to treatment while others do not. The goal is to find better…

This study uses 3D mapping to explore the electrical and structural features of a specific area in the heart called the left bundle branch area. The goal is to improve how pacemaker leads are placed in that region. Researchers will review data from 30 patients, ages 18 to 88, who…

This study will collect ECG recordings from 600 people using the HeartBeam 3-Lead ECG recorder. The goal is to build a database of heart rhythm information for future research and regulatory use. Participants will have their ECG taken as part of routine care, and their de-identif…

This study is looking at whether women with lower ovarian reserve (fewer eggs) have had more early miscarriages in the past. Researchers will measure ovarian reserve with a blood test (AMH) and an ultrasound (antral follicle count) in over 2,000 women seeking fertility care. This…

This study tracks immune-related substances in the blood of 40 women undergoing a frozen embryo transfer. Researchers want to see how these markers change before and after the transfer, and whether they relate to pregnancy success. The goal is to better understand the role of the…

This study aims to improve how doctors predict the risk of sudden cardiac death or heart failure in people with inherited heart diseases. Researchers will use artificial intelligence to analyze data from 1,000 participants, including medical history, ECGs, imaging, genetic tests,…

This study is collecting cervical mucus from 476 women undergoing IVF or frozen embryo transfer. Researchers will analyze the proteins in the mucus to find markers that indicate when the uterus is most receptive to an embryo. By comparing samples from women who become pregnant wi…

This study looks at whether MRI scans can help predict serious heart events in people who have implanted heart devices like pacemakers or defibrillators. Researchers will scan 1,500 adults before they get their device and track their health for years. The goal is to see if MRI fi…

This study explores a gentler way to screen embryos for genetic problems during IVF. Instead of taking a cell from the embryo (biopsy), researchers will analyze the fluid the embryo grows in. They want to see if this non-invasive method can predict which embryos are most likely t…

This study aims to understand how Long QT Syndrome types 2 and 3 affect the quality of life and daily burden of adults. Researchers will ask up to 200 participants to fill out questionnaires about their physical, emotional, and social well-being. No treatment is given; the goal i…

This study tests whether a simpler, single-step thawing method for frozen embryos works as well as or better than the standard multi-step method. About 816 women undergoing IVF will have their embryos thawed using one of the two methods. The main goal is to see if the simpler met…

This study is testing a special heart monitor, the BIOMONITOR IV, in 300 people with heart failure who also have irregular heartbeats. The device tracks heart activity, fluid levels, and breathing patterns to see if it can predict when heart failure gets worse. Researchers hope t…