View clinical trials related to Amyloidosis.
Filter by:Patients with left ventricular hypertrophy are further examined according to an algorithm to check if they have a cardiac amyloidosis
According to the most popular pathophysiological models of Alzheimer's disease, the amyloid hypothesis, amyloid deposition is the causative event triggering a chain of other downstream events which finally lead to Alzheimer's disease and dementia. In mouse models of Alzheimer's disease, 40 Hz multi-sensory (auditory and visual) stimulation was able to reduce the number and size of amyloid plaques throughout cortex and improve cognitive performance. The primary objective of this study is to assess whether an intervention consisting of 40 Hz multi-sensory (auditory and visual) stimulation is able to reduce the amyloid load in non-demented amyloid-positive individuals. As secondary objectives, the investigators will assess whether such intervention is able to: - improve the brain electrical activity, - improve or slow down the worsening of Alzheimer's blood-based biomarkers, - improve or slow down the worsening of cognition.
The purpose of this study is to determine the prevalence of transthyretin cardiac amyloidosis (TTR-CA) among patients with moderate and severe aortic stenosis in Southeast Minnesota using 99mTc-PYP single-photon positive emission computed tomography with computed tomography (SPECT/CT).
This study aims at establishing a new powerful combination of daratumumab and pomalidomide as rescue treatment for patients with R/R AL amyloidosis.
Introduction: Heart failure with preserved systolic function encompasses several different diseases, but which have diastolic dysfunction and its components in common: myocardial stiffness and altered relaxation. Myocardial stiffness represents an important parameter for diagnosis and prognosis, but only changes in relaxation are evaluated in clinical practice. Cardiac elastography has been proposed as a diagnostic modality for noninvasive assessment of myocardial stiffness. Objective: The aim of our study is to investigate the potential of myocardial elastography by shear waves to assess myocardial stiffness by non-invasively quantifying diastolic myocardial elasticity (EMD) in Fabry disease (DF) and cardiac amyloidosis (AC ) in the ATTRh form and correlate with other complementary imaging and laboratory tests (electrocardiogram, 2D echocardiogram, troponin and BNP) and with a 6-minute walk test and quality of life questionnaires. Material and methods: 60 adults will be prospectively included: 20 patients with Fabry disease, 40 patients with hRTRT (20 with cardiac involvement) and 20 patients as a control group. Echocardiography, electrocardiogram and laboratory evaluations will be performed. The elastocardiographic assessment of myocardial stiffness will be performed in ultrasound equipment (Canon, Aplio i800) using a multifrequency convex transducer, under specific adjustment of the equipment to perform myocardial elastography.
The purpose of this study is to evaluate the prevalence of amyloidosis in population of patient affected by suspect bilateral carpal tunnel with indication of surgery
Phase 3 efficacy and safety of acoramidis in subjects with symptomatic Transthyretin Amyloid Polyneuropathy (ATTR-PN)
Previous studies detected that up to 15% of patients undergoing aortic valve replacement (AVR) for degenerative aortic stenosis have concomitant transthyretin amyloidosis (ATTR) cardiomyopathy (Castano, 2017). The aim of this study is to investigate the effectivity and practicability of a systematic ATTR-Screening in patients undergoing planned AVR. Moreover, we plan to develop a screening algorithm to detect ATTR in aortic stenosis (AS).
The study aims to test the diagnostic accuracy of native T1 mapping for the diagnosis of cardiac amyloidosis prospectively. The hypothesis is that native T1 mapping with a cut-off value of 1341ms (3 tesla CMR) in older patients with symptomatic heart failure, increased LV wall thickness and elevated cardiac biomarkers is non-inferior to the reference method to diagnose cardiac amyloidosis (CA). As secondary measure, a web-based ATTR probability estimator for the diagnosis of CA will be evaluated.
The overall aim of this study is to improve our understanding of the effects of the build-up of amyloid deposits in the heart, in particular, our understanding of the risk of abnormal heart beats, or rhythms, associated with people with cardiac (heart) amyloidosis. Symptoms such as palpitations (fast, strong or irregular heart beat) and blackouts are common in people with cardiac amyloidosis, but there is not enough information on what causes this. At present, there is also not enough information on when they occur, how often they happen, and which patients are at risk of having serious, life-threatening types of abnormal heart rhythms. Some of these abnormal heart rhythms can be treated with medicine; others need electronic devices (e.g. pacemakers) implanted or inserted in the heart to prevent serious harm. The information on when is the best time to implant these life-saving devices remains limited. In this study, a small device known as an implantable loop recorder (ILR) will be implanted under the skin on the chest wall to continuously monitor participants' heart rhythm. This will help us answer some of the questions about what causes the abnormal heart rhythms, when they happen, and which patients are particularly likely to have them. Furthermore, it may help us to identify earlier, rather than later, those who are at risk of developing abnormal heart rhythms. This may lead to improvements in the care of people with cardiac amyloidosis in the future. Participants may not directly benefit from taking part in this study; however, there is a chance that the ILR may reveal heart rhythm abnormalities in some participants which might not be picked up otherwise, and so may lead to a change in their treatment.