11 Clinical Trials for Various Conditions
The purpose of this study was to evaluate the safety and clinical activity of long-term dosing with revusiran (ALN-TTRSC). Dosing has been discontinued; patients are being followed-up for safety.
The purpose of this study is to determine the pharmacokinetics, pharmacodynamics and exploratory clinical activity of ALN-TTRSC (revusiran) in Patients with Transthyretin (TTR) Cardiac Amyloidosis.
Researchers are gathering information to see if using an FDA approved implantable device can help with monitoring of your heart arrhythmias.
Approximately 1.5 million of the 44 million Blacks in the United States are carriers of the valine-to-isoleucine substitution at position 122 (V122I) in the transthyretin (TTR) protein. Virtually exclusive to Blacks, this is the most common cause of hereditary cardiac amyloidosis (hATTR-CA) worldwide. hATTR-CA leads to worsening heart failure (HF) and premature death. Fortunately, new therapies that stabilize TTR improve morbidity and mortality in hATTR-CA, especially when prescribed early in the disease. However, hATTR-CA is often diagnosed at an advanced stage and conventional diagnostic tools lack diagnostic specificity to detect early disease. The overall objectives of this study are to determine the presence of subclinical hATTR-CA and to identify biomarkers that indicate amyloid progression in V122I TTR carriers. The central hypothesis of this proposal is that hATTR-CA has a long latency period that will be detected through subclinical amyloidosis imaging and biomarker phenotyping. The central hypothesis will be tested by pursuing 2 specific aims: Aim 1) determine the association of V122I TTR carrier status with CMRI evidence of amyloid infiltration; Sub-aim 1) determine the association of V122I TTR carrier status with cardiac reserve; Aim 2) determine the association between amyloid-specific biomarkers and V122I TTR carrier status; and Sub-aim 2) determine the association of amyloid-specific biomarkers with imaging-based parameters and evaluate their diagnostic utility for identifying subclinical hATTR-CA. In Aim 1, CMRI will be used to compare metrics associated with cardiac amyloid infiltration between a cohort of V122I TTR carriers without HF formed by cascade genetic testing and age-, sex-, and race-matched non-carrier controls. For Sub-Aim 1, a sub-sample of carriers and non-carrier controls enrolled in Aim 1 will undergo novel exercise CMRI to measure and compare cardiac systolic and diastolic reserve. Aim 2 involves measuring and comparing amyloid-specific biomarkers in V122I TTR carriers without HF with samples matched non-carriers (both from Aim 1) and individuals with symptomatic V122I hATTR-CA from our clinical sites. These biomarkers detect and quantify different processes of TTR amyloidogenesis and include circulating TTR, retinol binding protein 4, TTR kinetic stability, and misfolded TTR oligomers. Sub-aim 2 will establish the role of these biomarkers to detect imaging evidence of subclinical hATTR-CA disease.
The purpose of this study is to characterize the frequency of TTR mutations in subjects suspected of having cardiac amyloidosis
The purpose of this Phase 3, open label, single dose imaging study is to evaluate the efficacy and safety of I-124 evuzamitide (radioactive dye) for diagnosing Cardiac Amyloidosis in participants with suspected Cardiac Amyloidosis. The imaging test that will be used in this study is a Positron Emission Tomography Computed Tomography (PET/CT) scan.
In this study, the investigators will recruit a cohort of elderly Black and Hispanic patients with heart failure to define the number of patients who have cardiac amyloidosis by utilizing highly sensitive heart imaging and blood tests. The investigators will also explore differences in genetics and sex as they relate to heart failure disease progression in cardiac amyloidosis.
The purpose of this study was to evaluate the safety and efficacy of revusiran (ALN-TTRSC) in patients with transthyretin (TTR) mediated Familial Amyloidotic Cardiomyopathy. Dosing has been discontinued; patients are being followed-up for safety.
This study is testing a potential new medicine, NNC6019-0001, for people who have a heart disease due to TTR amyloidosis.The study will look at if this medicine can reduce the symptoms of a heart disease due to TTR amyloidosis, such as heart failure. Participants will either get NNC6019-0001 (apotential new medicine) or placebo (a medicine which has no effect on the body). Which treatment participants get is decided by chance. The chance of getting NNC6019-0001 is two times higher than getting placebo. NNC6019-0001 is not yet approved in any country or region in the world. It is a new medicine that doctors cannot prescribe yet. Participants will get an infusion of the study medicine 13 times, once every 4 weeks. The study will last for about 64 weeks after the first dose of medicine. Participants cannot participate in this study if they have a heart disease other than a heart disease due to TTR amyloidosis.
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.
Phase 3 efficacy and safety study to evaluate acoramidis (AG10) HCl 800 mg administered orally twice a day compared to placebo in subjects with symptomatic Transthyretin Amyloid Cardiomyopathy (ATTR-CM).