View clinical trials related to Amyloidosis.
Filter by:We plan to establish a dedicated network of Italian Hematologic Departments interconnected with the Amyloidosis Research and Treatment Center in Pavia to: 1. Implement a biomarker-based screening strategy to promote early diagnosis of AL amyloidosis among at-risk patients, including patients with monoclonal gammopathy of undetermined significance, MGUS, and altered free light chain ratio (aFLCR), and patients with smoldering multiple myeloma (SMM) 2. Expedite and facilitate patients' referral and their enrollment in ongoing pre-clinical/clinical studies, also to reflect a broader spectrum of the real-world population of patients with AL amyloidosis in Italy; 3. Investigate the clinical utility of novel diagnostic technologies, including light chain sequencing and N-glycosylation analysis
This is a prospective, single-center study exploratory clinical trial, aim to exploring the efficacy and safety of daratumumab in patients with AL amyloidosis, patients were divided into three groups: one group received long-term treatment with daratumumab based regimen, and the other group received autologous stem cell transplantation after two standard treatment courses with daratumumab based regimen, and the third group consists of newly diagnosed stage IIIb AL amyloidosis patients who plan to receive DPD treatment. The purpose of this study is to observe the efficacy and safety of Daratumumab, in the treatment of newly diagnosed systemic AL amyloidosis.
The goal of this prospective clinical study is improve the diagnosis of Low-flow low-gradient aortic stenosis (LF/LG AS), in patients with co-existing wild-type transthyretin cardiac amyloidosis (ATTRwt). The main question it aims to answer is whether the classic dobutamine-stress echocardiography can be used to determine AS severity in patients with ATTRwt and LF/LG AS This question will be tried to answer by comparing dobutamine stress echocardiography, with the invasively measured aortic valve area (which is considered as the gold standard). In addition we aim to assess the degree of myocardial fibrosis and amyloid infiltration, assessed by light microscopy and cardiac magnetic resonance (CMRI) and evaluation of myocyte mitochondrial function by high resolution respirometry and their relation to AS severity and hemodynamic response to dobutamine.
The goal of this observational study is to learn about the frequency of ATTR amyloid, cardiac involvement and associated features, in 150 patients aged 50 or more years, and operated for an idiopathic carpal tunnel syndrome, lumbar spine stenosis or total hip or knee arthroplasty for primary osteoarthritis. The main questions to be answered are: 1. What is the frequency of ATTR deposits in samples retrieved during surgery? 2. What is the frequency of cardiac involvement in ATTR positive patients? 3. What are the preoperative predictors of ATTR deposits? Participants will - have operative samples stained by Congo red in search of amyloid, which will be typed by immunochemistry in positive samples, - undergo a multimodal imaging search for cardiac involvement, if ATTR is identified, - undergo a preoperative complete clinical examination, including collection of medical history, ECG, biochemical tests, and imaging (ultrasound scans of rotator cuff and hip capsule in all participating patients, of the carpal tunnel in patients operated at this site, and MRI + standing profile radiography of the lumbar spine, in patients operated for lumbar stenosis) - ATTR positive patients will be proposed to be followed-up by a reference center, with the aim of an early diagnosis of cardiac involvement, allowing efficient mamagement. Researchers will assess the frequency of ATTR deposits at each operated site, the frequency or ATTR cardiopathy in ATTR + patients, and will compare demographic, clinical, biochemical, and imaging features in patients with and without ATTR deposits, to guide the indications of pathological examination during these frequent orthopedic surgeries
A multicenter observational retrosPective Registry of patIents with transthyretin aMyloid polynEuropathy (hATTR-PN) and chRonic idiopathic axonal polyneuropathy (CIAP) in the population of the Russian Federation (PRIMER) There are no comprehensive epidemiological data on patients with hereditary ATTR-PN (hATTR-PN) and CIAP in the Russian Federation. Therefore, there is a need to conduct a large-scale observational study in the Russian population to obtain information on clinical, electrophysiological and demographic characteristics of patients with hATTR-PN and CIAP. Obtaining the study data will help to identify the patients with axonal polyneuropathy, who deserve TTR gene sequencing, and therefore to allow early treatment and potentially modify disease progression in patients.
The overall aim of this observational study is to generate real-world evidence on the pre- and post-diagnosis disease journeys, including baseline characteristics, treatment patterns and selected clinical, economic, and humanistic outcomes (for example Health Related Quality of Life (HRQoL), Neuropathy impairment score, activities of daily living (ADL) assessments) in patients with ATTR amyloidosis, and to better understand how the disease is presented.
The development of cardiac amyloidosis is caused by the deposition of misfolded, insoluble proteins in the extracellular matrix of tissues. An important element of the clinical picture of the disease is the increased risk of thromboembolic complications, independent of the occurrence of atrial fibrillation, and the presence of intracardiac thrombi. The pathomechanism may be related to an increase in filling pressure or amyloid infiltration leading to myocardial damage and endothelial dysfunction, which may activate the prothrombotic inflammatory cascade, resulting in increased thrombogenic potential. Currently, there is limited published data on the potential role of new heart failure biomarkers in the assessment of ATTR cardiomyopathy, particularly in the assessment of asymptomatic carriers of pathogenic TTR variants. Moreover, there are few literature reports on the direct assessment of the coagulation system in this group of patients, and the pathomechanism of the increased thromboembolic risk is unexplored. Purpose of the study: To assess the diagnostic value of biomarkers related to heart failure (growth differentiation factor-15 (GDF15), soluble suppression of tumorigenicity-2 (ST2), galectin-3), amyloidosis ( TTR, tissue inhibitor of metalloproteinase-1 (TIMP-1), matrix metalloproteinase-9 (MMP-9, matrix metalloproteinase-9), neurofilament light chain (NfL)) and the generation potential thrombin as a marker of the prothrombotic state in the course of ATTR. Methods: This prospective, single-center study will include consecutive patients diagnosed with ATTR cardiomyopathy (GROUP 1, n=30), asymptomatic carriers of pathogenic TTR variants (GROUP 2, n=30), and a matched control group of healthy volunteers (GROUP 3 , n=20). Material for research was collected and secured from all study participants. After giving informed consent, all patients will be tested using the ELISA method from peripheral blood (enzyme-linked immunosorbent assay) GDF15, ST2, TTR, TIMP-1, MMP-9, galectin-3, NfL. The values of these biomarkers will be compared in subgroups and correlated with clinical data, laboratory test results, echocardiography including analysis of left ventricular global strain (GLS), and scintigraphy. Additionally, the prothrombotic potential of plasma will be tested in both groups of patients using the calibrated automatic thrombogram (CAT) method, in accordance with the protocol previously used in the laboratory Expected results: The project will provide information on the value of biomarkers in the assessment of ATTR cardiomyopathy, especially in the assessment of asymptomatic carriers of pathogenic TTR variants, which may translate into the creation of a diagnostic algorithm for early identification of the development of the disease. Moreover, it will allow us to determine whether patients with cardiac ATTR are characterized by a prothrombotic state, which has not yet been described in the literature and may have potential clinical implications.
This is an open-label, multicenter, Phase 2 study in subjects with newly diagnosed systemic light chain (AL) amyloidosis. Approximately 40 subjects will receive therapy with bortezomib, pomalidomide, and dexamethasone. The primary outcome is hematologic very good partial response and complete response rate at 6 months.
A multicenter observational retrospective-prospective study of prevalence and clinical characteristics of transthyretin amyloidosis (ATTR) cardiomyopathy (CM) in Russian patients with heart failure with preserved ejection fraction (HFpEF) in real clinical practice. The retrospective phase will entail secondary data collection from electronic or paper medical records of patients who are participating/participated in the PRIORITY-CHF study and have HFpEF. Those patients who have a high suspicion of having ATTR-CM and provided informed consent will be invited to participate in the prospective phase. The prospective phase will consist of three visits, during which a routine comprehensive cardiologic evaluation in order to confirm or exclude ATTR-CM diagnosis will be performed. In patients with confirmed ATTR-CM the material for genetic testing will be collected in order to specify the type of ATTR-amyloidosis
The goal of this study is to develop an algorithm using artificial intelligence (AI) to assist identification of potential ATTR-CM cases using routine transthoracic echocardiography. The main questions it aims to answer are: - is the algorithm able to diagnose ATTR-CM - is the algorithm able to diagnose different types of ATTR-CM (ATTRv, ATTRwt) This is a non interventional study. Participant' echocardiographies will be, after deidentification, used to train, valid and test the algorithm.