This study involves collecting data and physician feedback while using the ViewFlex X System during a routine electrophysiology (EP) procedure. An electrophysiology procedure is done to correct an electrical abnormality in the heart. The ViewFlex X System is considered investigational meaning it has not been approved for commercial use by the Food and Drug Administration (FDA). The ViewFlex System will obtain and integrate heart images with the mapping information obtained during your procedure. There is also an option to have the procedure videotaped. Study participation lasts until hospital discharge post procedure. Study related risks include risks associated with using the ViewFlex X System, loss of confidentiality and unknown risks.

The purpose of this research is to gather information about the effectiveness and safety of Left Atrial Appendage Occlusion (LAAO) device procedures in patients using a Watchman device performed on days where doctors perform a large number of procedures.

The study primary outcome is to evaluate complications during the procedure up to 30 days after the procedure.

The final outcome is to determine successful placement within 31 - 90 days after implant.

We are doing this study to learn more about how effective, safe and tolerable an experimental drug called balcinrenone is when used in combination with dapagliflozin for treating patients with heart failure and impaired kidney function and also to better understand the studied disease and associated health problems. Dapagliflozin is an approved drug to treat patients with heart failure, chronic kidney disease and type 2 diabetes mellitus.

The purpose of this study is to evaluate the safety and effectiveness of acoramidis (AG-10) and determine if it can help people with the genetic TTR variant that can cause ATTR-CM. The sponsor (Eidos) is conducting a research study to see if the study medicine will help in slowing the development and/or progression of a rare disease called Symptomatic Transthyretin Amyloid Cardiomyopathy (ATTR-CM). AG-10 is an investigational drug. "Investigational" means that AG-10 is not yet approved for use in any settings outside of clinical research studies like this one and is considered experimental. Cardiomyopathy is a disease of the heart muscle that makes it harder for the heart to pump blood to the rest of the body. AG-10 has been shown to reduce the level of TTR in the blood of animals and healthy volunteers tested to date. Reducing the amount of TTR in your blood may reduce the amount of amyloid deposits in your body and may keep your cardiomyopathy from getting worse over time.

If you meet the requirements and agree to participate in this study, you will go through a 2 part screening period and if approved you will begin treatment. You will be randomized, like flipping a coin, to drug or placebo and take two pills once every day for 60 months.
Your participation in this study will last up to 60 month and will consist of clinic visits and follow up visits at home via the telephone. Some tests requires of you will include an echo, ECG, cardioradionuclide scans (scans that use radioactive agents to look at images of the heart like a PET scan), MRIs, blood tests, nerve conduction test, urine samples, and skin biopsies.

There may be at least 15,000 people who are part of this registry at any one time. The device has already been cleared or approved by the U.S. Food and Drug Administration ("FDA"). The registry is not an experimental clinical study.

You are invited to volunteer in this clinical research study because you have been diagnosed with tricuspid valve regurgitation.

The type of research study you are being asked to join is called an Early Feasibility Study. This means the device and procedure you are receiving (the treatment) have not been previously studied in humans, and that you will be among the first patients in the world to undergo this treatment. The Device you are receiving is not approved by the United States Food and Drug Administration and its safety and effectiveness are unknown.

Participants will undergo right heart catheterizations, computed tomography (CT) scans without iodinated contrast, multiple ultrasounds of the heart, labs, and other assessments. The length of subject participation in the study is 5 years and includes 11 research visits. You will have a screening right heart catheterization (RHC) to check the pressures and function of your heart. The research procedure and placement of the TRIcares Topaz Transfemoral Tricuspid heart Valve (Topaz Tricuspid Valve) will be placed in a hybrid operating room. This procedure is done by entering a vein in your groin known as the femoral vein. The purpose of this device is to eliminate the regurgitation or leaking in the tricuspid valve of the heart to help reduce the symptoms caused by this leaky valve.

The most common risks associated with the research procedure are those related to the right heart catheterization (RHC) and Topaz Tricuspid valve procedure. Major risks include bleeding and damage to the heart or surrounding blood vessels. There are no known benefits of the research device. There may be possible benefits from the research procedure including improvement in quality of life or a decrease in the symptoms caused by tricuspid regurgitation. The information that we obtain from your participation in this study will help us learn more about how safe and effective this approach is in treating the symptoms of individuals similar to yourself.

This study is for patients with hypertrophic cardiomyopathy (HCM). HCM is a condition where the heart muscle becomes abnormally thickened, which can sometimes block the blood flow out of the heart and results in the heart muscle working harder to pump blood to the body. Participants who have completed participation in a previous HCM study investigating the study drug, called aficamten (CK-3773274), will be eligible to participate in this study.

The study is done to collect long-term safety and tolerability data, including assessments of cardiac structure and function during chronic dosing with aficamten. Aficamten is a tablet taken by mouth. This is an open label study (the participants and study team will know the dose of aficamten taken at any given time). If your screening results show you are eligible to continue in the study, you will visit the research site for the "first dosing day" (Day 1), followed by visits at Weeks 2, 4, 6, 12, then every 12 weeks thereafter. Study related procedures include blood work, echocardiograms (ultrasound test of the heart), electrocardiogram (recording of heart's electrical activity), physical exams, and questionnaires. Risks associated with this study include shortness of breath, nausea, diarrhea, headaches and dizziness.

This study is enrolling subjects with an abnormal heart rhythm called ventricular tachycardia (VT - rapid heart beat coming from the bottom of the heart) that has come back despite treatment. This is a randomized study meaning subjects will be assigned to one of two groups and then undergo either a standard catheter ablation or a new treatment called cardiac radioablation for their VT. You will have a 50:50 chance of being assigned to either group. A standard catheter ablation is done by placing catheters (long hollow tubes) into a large blood vessel at the top of the leg, guiding them to the heart to first identify the signals causing the VT and then use radiofrequency (heat) energy to burn and stop these signals to stop the VT. The cardiac radioablation is an investigational treatment meaning it is not yet approved for routine clinical use by the Food and Drug Administration (FDA). Cardiac radioablation is performed in the radiation oncology department and uses radiation therapy to treat the signals causing the VT. Participation in this study will last up to 5 years and inlcude about 15 visits. Study related procedures include medical record review and data collection, electrocardiogram (tracing of heart's electrical activity), echocardiogram (ultrasound test of the heart), CT scans, blood work, questionnaires, implantable cardioverter defibrillation (ICD - device implanted in your chest that monitors and treats abnormal heart rhythms), and ablation procedure per randomization. Risks include fatigue, changes in the appearance of the lungs in the cardiac radioablation group, fatigue, pain, low or high blood pressure or excessive bruising or bleeding at the catheter insertion side in the cardiac ablation arm. There are also study procedure related risks, and risks that are not known. There is potential benefit to you and to others in learning how to better treat others in the future with this condition.

This study is for those with Transthyretin (TTR) Amyloidosis with Cardiomyopathy or ATTR-CM. ATTR-CM is a condition where the heart muscle does not pump your blood through your body as it should because of build up of abnormal protein between the muscle fibers in your heart. The specific protein is called transthyretin amyloid (TTR). The study involves an investigational drug called NTLA-2001. Investigational means it is not approved for commercial sale or use by the Food and Drug Administration. This study is a randomized study meaning participants will be assigned by chance to receive NTLA-2001 or placebo. A placebo looks like the investigational drug but contains no active ingredient. In this study, two out of three participants are assigned to receive NTLA-2001 and one out of three will receive placebo. NTLA-2001 or placebo are given by intravenous (IV) infusion meaning in your vein.

NTLA-2001 consists of a gene editing system which can "knockout" the TTR gene and permanently change the DNA (deoxyribonucleic acid, which contains information that determines parts in traits such as eye color or height, that are passed on from parent to child) so the gene stops making the TTR protein.

This study will last at least 18 months and include up to 17 visits. Study related procedures include physical exams, blood work including genetic testing, eye exam, hall walk test, electrocardiograms (ECGs), echocardiogram (echo) and vitamin A supplement. Study risks include infusion related risks like headache, fever, chills, or increased liver enzymes. Other study related risks include genetic risks, loss of confidentiality and unknown risks.

This study is for participants who have tricuspid regurgitation, a condition in which your heart's tricuspid valve does not close tightly which causes blood to flow backwards in the incorrect direction. This condition increases the workload on the heart and if left untreated, it can increase the risk of worsening heart failure. In this study, a device called the VDyne Transcatheter Tricuspid Replacement System will be used to treat the tricuspid regurgitation. The VDyne Transcatheter Tricsupid Replacement System is an investigational device meaning it has not been approved for commercial use by the US Food and Drug Administration (FDA). In this study all eligible participants will be treated with the device.

Participation in this study will last about 5 years and involve up to 13 visits. Study related procedures include a right heart catheterization (test to measure the pressures in the heart), echocardiograms (ultrasound test of heart), electrocardiogram or ECG (test of the heart's electrical system) blood work, questionnaires, hall walk test, and physical exam.

There are risks associated with this study including potential risks with the device, implant procedure and study related procedures. There is also the risk of loss of confidentiality. The study may or may not benefit you but the information learned may benefit others with this condition in the future.