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NCT06563895
Transthyretin amyloidosis (ATTR) is a disease where the normally occurring transthyretin (TTR) protein falls apart and forms amyloid, a sticky plaque-like substance that accumulates in different organs in the body and can cause damage to the organ. There are two ways that the TTR protein can fall apart. One way occurs as a person ages, where the normal TTR protein can fall apart and form amyloid that may no longer be sufficiently cleared by the body. This type of ATTR is known as wild-type ATTR (ATTRwt). The other way occurs when a person inherits a defective TTR gene that causes the TTR protein to spontaneously fall apart. This form of the disease is known as variant ATTR (ATTRv) and can be detected in adults by a genetic test of their TTR gene before they age. Amyloid build-up in the heart causes the heart wall to become thick and stiff and can result in heart failure and even death. Accumulation of TTR amyloid in the heart is known as transthyretin amyloid cardiomyopathy or ATTR-CM. Amyloid can also deposit in the nerve tissues leading to nerve problems. Accumulation of TTR in the nerves is known as transthyretin amyloid polyneuropathy or ATTR-PN. Acoramidis is an experimental drug designed to bind tightly to TTR in the blood and stabilize its structure, so it does not form the harmful amyloid plaques that can cause damage to organs. This study is intended to determine if treatment with acoramidis in participants with ATTRv who have not yet developed any symptoms of disease can prevent or delay the development of ATTR-CM or ATTR-PN disease. If adults with an inherited defective TTR gene are treated early before any of the symptoms of disease have developed, it may be possible to delay the onset or prevent the disease entirely.
NCT02352129
: Fibrosis, in general, is a scarring process, which is characterized by fibroblast accumulation and excess deposition of extracellular matrix (ECM) proteins, which leads to distorted organ architecture and function. The contribution of fibrogenesis to impaired cardiac function is increasingly recognized. The fibrotic ECM causes increased stiffness and induces pathological signaling within cardiomyocytes resulting in progressive cardiac failure. Also, the excessive ECM impairs mechano-electric coupling of cardiomyocytes and increases the risk of arrhythmias. But today patient treatment and prognosis is based on ejection fraction quantification, QRS duration, and symptoms. Hypothesis: the increased level of fibrosis quantified using T1 mapping technique, compared with normal value, is of prognostic value in patient with dilated cardiomyopathies under optimal treatment. Methods: 330 patients are planned to be included and followed for 2 years
NCT07358078
The purpose of this study is to: * Describe the clinical characteristics of adult patients with transthyretin-mediated amyloidosis with cardiomyopathy (ATTR-CM) treated with vutrisiran in routine clinical care * Describe treatment patterns of adult patients with ATTR-CM treated with vutrisiran in routine clinical care * Assess health-related quality of life (HRQOL) in adult patients with ATTR-CM treated with vutrisiran in routine clinical care * Assess healthcare resource use (HCRU) in adult patients with ATTR-CM treated with vutrisiran in routine clinical care Compare the long-term effectiveness of vutrisiran versus other approved ATTR-CM treatments in routine clinical care
NCT06158698
Two-parallel groups randomized, single-blinded, multi-center phase III controlled trial in patients with chronic inflammatory cardiomyopathy to assess the efficacy of colchicine and associated prospective registry to assess the prognostic value of positive genetic testing in this population.
NCT07052903
The purpose of this study is to: * Evaluate the efficacy of nucresiran compared to placebo on reducing all-cause mortality and cardiovascular (CV) events * Evaluate the efficacy of nucresiran compared to placebo on additional assessments of CV events and/or death * Evaluate the efficacy of nucresiran compared to placebo on patient-reported health status and health-related quality of life
NCT07479641
This study will investigate the bioequivalence between two formulations of HRS-1893 tablets. Safety and tolerability will also be assessed.
NCT07529938
This retrospective cohort study aims to evaluate the clinical efficacy and safety of mavacamten in adult patients with obstructive hypertrophic cardiomyopathy (oHCM). A total of 222 patients were included and categorized based on treatments received in routine clinical practice into a mavacamten group and a standard therapy group. The primary outcome is the change in resting left ventricular outflow tract (LVOT) gradient at Week 30. Secondary outcomes include changes in Valsalva LVOT gradient, New York Heart Association (NYHA) functional class, cardiac biomarkers, and echocardiographic parameters. Safety outcomes include adverse events and left ventricular systolic dysfunction. This study provides real-world evidence on the effectiveness and safety of mavacamten in Chinese patients with oHCM.
NCT06427226
This is a randomized controlled clinical trial that aims to evaluate the safety and efficacy of Dapagliflozin as a cardioprotective in doxorubicin-induced cardiotoxicity in breast cancer patients.
NCT05885412
This Phase 1 dose escalation trial will assess the safety and preliminary efficacy of a single dose intravenous infusion of RP-A601 in high-risk adult patients with PKP2-ACM.
NCT07023341
Researchers are looking for a better way to treat Japanese people who have symptomatic obstructive hypertrophic cardiomyopathy (symptomatic oHCM). Obstructive hypertrophic cardiomyopathy (oHCM) is a type of heart disease where the heart muscles become thicker than normal due to over contraction. This thickening makes it harder than normal due to over contraction. This thickening makes it harder for the heart to pump blood out to the rest of the body. In symptomatic oHCM people with the condition experience symptoms like shortness of breath, chest pain, fainting, high blood pressure and irregular heartbeats. The study treatment aficamten, also called BAY3723113, is under development to treat symptomatic oHCM. It aims to reduce the activity of cardiac myosin, a protein that helps heart muscles to contract, and thereby preventing over contraction and muscle thickening. Although treatment options are available for symptomatic oHCM, there is still need for other treatment options that help target the root cause of the condition. In this study, researchers want to understand about the effects and long-term safety of aficamten in Japanese people with symptomatic oHCM. The main purpose of the study is to learn how well aficamten works in Japanese with symptomatic oCHM. For this, the researchers will check how participant's heart blood flow changes after 6 months of treatment. They do this by measuring the pressure needed for blood to leave the heart using a test called the left ventricular outflow tract (LVOT) gradient and a special breathing technique called Valsava maneuver. Researchers will also look for: * the number of participants who will have at least 1 level improvement on a scale doctors use to assess the effect of heart problems on daily activities after 3 and 6 months of treatment * the change in the impact of heart problems on participant's daily lives based on their feedback on a questionnaire called Kansas City Cardiomyopathy Questionnaire - Clinical Summary Score (KCCQ-CSS) after 3 and 6 months of treatment. This study will have 2 treatment periods: main treatment period and long-term treatment period. During the main treatment period, participants will take aficamten tablets once daily by mouth for up to 6 months. After completing this period, the participants who can join the long-term treatment period will continue taking aficamten until the drug becomes commercially available in Japan or the study ends. Each participant will be in the study as long as they benefit from the treatment. Participants will visit the study site: * once before the treatment starts * 9 times with a gap of 2 to 4 weeks between the visits during treatment under the main treatment period, and in the long-term treatment period, participants will visit almost every 3 months until the treatment ends. * then 2 more times with a gap of 1 month between the visits after the treatment ends. During the study, the study doctors and their team will: * check participant's health by performing tests such as blood and urine tests, and checking heart health using an electrocardiogram (ECG) and echocardiogram (ECHO) * ask the participants questions about how they are feeling and what adverse events are they having An adverse event is any medical problem that a participant has during a study. Study doctors keep track of all adverse events, irrespective if they think it is related or not to the study treatment. In addition, the participants will be asked to complete a questionnaire on quality of life at certain time points during the study. If the participant benefits from the treatment, treatment with aficamten after the end of the study might be possible.
NCT04325321
The goals of this study are as follows: 1. To rigorously establish and characterize heterogeneity in the pathophysiology of Takotsubo Syndrome (TS). 2. To rigorously test the contribution of TS triggering events and mental stress responsiveness to 1-year prognosis after TS event.
NCT06261216
The aim of this study is to investigate the association between increased lifetime physical activity and the development of wild-type transthyretin amyloid cardiomyopathy.
NCT07505199
To study the safety and efficacy of fibroblast activation protein (FAP)-targeted autologus immunosuppressive chimeric antigen receptor-dendritic cell (CAR-DC) in the treatment of ischemic cardiomyopathy, aiming to provide a novel therapeutic strategy for the disease.
NCT07491237
Arrhythmias are widespread among the global population. Although they can occur in healthy hearts, they are often the manifestation of a hereditary or acquired heart muscle disease, and may be the cause or, more often than not, the consequence. In recent decades, with advances in medical knowledge and technology, non-pharmacological therapies for arrhythmias have become increasingly popular. These fall into two broad categories: therapies aimed at electrostimulation and those aimed at ablation of arrhythmias. The selection of patients eligible for these procedures is essential for the effectiveness of the therapy, the reduction of complications and the optimisation of resources. Not all patients, even those selected according to guidelines, respond equally to the chosen therapy. Other patients, due to their clinical/ECG characteristics, do not have clear indications and remain in a borderline area where the class of evidence and/or recommendation of the guidelines is less stringent. Still others develop recurrences or complications during follow-up that require further intervention. In this context, it is essential in the study of these patients not only to use standard instrumental examinations, such as echocardiograms, Holter ECGs and stress tests (simple and cardiopulmonary), but also and above all to use advanced imaging methods (STE, 3D echo, MRI, CT, PET-CT) and remote monitoring tools that integrate diagnostic algorithms managed by artificial intelligence. In light of these considerations, our project consists of conducting an observational study that includes all patients with arrhythmias who are candidates for electrostimulation and/or ablation procedures at the Arrhythmology Unit and/or followed up at the Arrhythmology Clinic of our Polyclinic, in order to assess the clinical and/or imaging characteristics associated with a worse prognosis in this population, in terms of response to therapy and development of complications. Our main aim is to identify, within the above-mentioned population, the subgroups of responder patients versus non-responder patients, i.e. those with a worse prognosis , who deserve greater attention and more frequent follow-up.
NCT06040242
Current guidelines advocate that ARVC patients, typically young and active individuals with a significant history of competitive endurance sports, cease endurance training in favour of activities with low cardiac burden such as bowling and golf. Empirically, it is often suggested that heart rate during exercise should not exceed 100-120 bpm in these patients, but these guidelines are arbitrary and not scientifically based. In practice, it is estimated that up to 50% of patients do not comply with these recommendations . Adequate quantification of the arrhythmogenic burden, defined as premature ventricular beats in proportion to all heart beats in each period of time, and cardiac load (defined as stroke volume for volume load and systolic blood pressure for pressure load) experienced by ARVC patients when performing different types of physical exercise would be a first step towards designing a safe and effective intervention so that these patients can profit from an active life style. This study therefore aims to quantify and describe the arrhythmogenic burden and cardiac load experienced by patients with ARVC while performing different physical exercise over a range of intensities - all strictly within the range currently recommended by different cardiological societies.
NCT01143519
Background: \- Research has shown that certain proteins in cells may be linked to higher risks of developing inflammations, tumors, and other medical problems. By examining how the blood cells of healthy volunteers respond to environmental exposures, researchers hope to better understand the relationship of genes, environmental factors, and human diseases. Objectives: \- To examine how specific genes and proteins in blood cells respond to environmental exposures. Eligibility: \- Healthy volunteers between 18 and 45 years of age. Design: * The study will involve one visit of 45 to 60 minutes. * Participants will be screened with a brief physical examination and finger stick to determine if they are eligible to donate blood for the study, and will complete a questionnaire about any medications or other drugs (e.g., cigarettes) they may be taking. * Participants will provide a blood sample for research purposes.
NCT01143454
Background: \- Researchers are interested in studying individuals who have known or suspected metabolic, inflammatory or genetic diseases that may put them at a high risk for heart diseases or diseases of their blood vessels. Depending on the condition being studied, both affected and nonaffected individuals may be asked to provide blood and other samples and may undergo tests to evaluate the heart, blood vessels and lung function. The testing is tailored to the individual and/or condition being studied. Nonaffected individuals may include relatives of affected individuals and healthy nonrelated volunteers. Objectives: \- To study individuals who have or are at risk for cardiovascular diseases, and in some cases their unaffected relatives and healthy volunteers. Eligibility: \- Individuals between 1 and 100 years of age. Participants may be healthy volunteers, individuals with cardiovascular diseases, or unaffected relatives of individuals with cardiovascular diseases. Design: * Participants will have some or all of the following tests, as directed by the study researchers: * Photography of the face and full body * Body measurements * Radiography, including chest or limb x-rays * Metabolic stress testing to study heart and muscle function * Echocardiography to study heart function * Magnetic resonance imaging (MRI) studies, including cardiovascular MRI, angiography, and contrast MRI, to study heart function and performance * Computed tomography (CT) angiogram to obtain images of the heart and lungs * Positron emission tomography (PET) imaging to study possible fat infiltration of the heart * Six-minute walk test to study heart, lung, and muscle function and performance * Vascular ultrasound to study blood vessel walls * Blood, tissue, and other specimens will be collected for research and testing, and will be taken either as part of the clinical study or during surgical procedures. * Follow-up studies may be performed under separate research protocols.
NCT07207811
This study will find out if a new medicine called NNC6019-0001 can help reduce the risk of heart-related death and illness in participants with a condition called transthyretin amyloid cardiomyopathy (ATTR-CM), which affects the heart. Participants will either receive NNC6019-0001 or a placebo (a treatment with no active medicine), and which one they get is decided by chance. Everyone in the study will continue receiving their usual heart treatments as recommended by their doctor.
NCT05836259
This is a first-in-human, non-randomized, open-label study designed to evaluate the safety, tolerability, and pharmacodynamics (PD) of TN-201 in adult patients with symptomatic hypertrophic cardiomyopathy (HCM) caused by mutations in the MYBPC3 gene.
NCT06290570
The purpose of this study is to evaluate the AI-ECG algorithm for HCM in detecting HCM and in differentiating it from athlete's using not only the standard 12-lead ECG, but also ECGs obtained with the Apple Watch and Alivecor KardiaMobile devices.