View clinical trials related to Amyloidosis.
Filter by:Exercise training in patients with heart failure and preserved ejection fraction (HFpEF) has been associated with an improvement in cardiorespiratory fitness and quality of life.
The purpose of this study is to learn about the safety of Tafamidis for the treatment of Transthyretin amyloid cardiomyopathy (ATTR-CM) in India. ATTR-CM is a condition that affects people's hearts. Transthyretin is a protein that is made in the liver. In some people this protein stops working and forms clumps called as amyloid. Transthyretin amyloid builds up in heart and stops the heart from pumping properly. This study is seeking for participants who are: - confirmed with ATTR-CM. - given Tafamidis capsules to be taken by mouth. The safety of Tafamidis capsules will be checked based on side effects. These side effects can happen within 6 months after taking Tafamidis. A side effect is something (expected or unexpected) that you feel was caused by a medicine or treatment you take. The study doctor will collect side effect information and put the information on patient's case form. Follow-up of the patient's will be performed via clinic re-visit or over a call. It is not a rule for the participants to visit the clinic in this study. This study will help to see if Tafamidis is safe.
This study is a single-arm, open-label, dose-escalation trial aimed at determining the optimal biologically active dose (OBD) of YOLT-201 and providing safety and efficacy evaluation. The OBD is the dose at which serum transthyretin (TTR) protein baseline reduction is ≥60% but not exceeding 95% after 28 days of dosing. The OBD dose should not exceed the maximum tolerated dose (MTD), defined as the highest dose at which no more than one subject experiences dose-limiting toxicity (DLT) within each cohort.
The concomitant presence of cardiac amyloidosis (CA) in patients with aortic stenosis (AS) may challenge the estimation of stenosis degree. In patients with dual pathology (AS + CA) the most frequent AS hemodynamic profile is paradoxical low-flow, low-gradient AS. In this setting, estimating stenosis degree with cardiac ultrasound may be challenging and aortic valve calcium score estimation by cardiac CT is a valuable exam. Preliminary findings from small case series showed that patients with severe AS and CA presented less valvular calcium deposition compared to patients with severe AS alone. On this basis, confirmation of these findings would have a huge clinical impact on diagnosis, choice of treatment strategy and understanding of the pathophysiology of these patients. The aim of the study is to study the correlation between valvular calcium score (assessed by EKG-gated CT) and effective orifice area (assessed through echocardiogram) according to cardiac amyloidosis presence (in the overall population and among hemodynamic phenotypes of cardiac amyloidosis). As secondary endpoints the study will sought to assess TAVI/SAVR efficacy, procedural complications, in-hospital mortality, all-cause death and heart failure hospitalization at 1 year, according to absence or presence of CA.
The goal of this National Registry is to is to collect information from patients with rare kidney diseases, so that it that can be used for research. The purpose of this research is to: - Develop Clinical Guidelines for specific rare kidney diseases. These are written recommendations on how to diagnose and treat a medical condition. - Audit treatments and outcomes. An audit makes checks to see if what should be done is being done and asks if it could be done better. - Further the development of future treatments. Participants will be invited to participate on clinical trials and other studies. The registry has the capacity to feedback relevant information to patients and in conjunction with Patient Knows Best (Home - Patients Know Best), allows patients to provide information themselves, including their own reported quality of life and outcome measures.
Amyloidoses are systemic or acquired disorders characterized by the deposition in the extracellular spaces of amyloid fibers formed by proteins codified by mutated genes or non-mutated but misfolded proteins. Cardiac involvement in amyloidosis is an important determinant of the clinical presentation and can be found in patients with amyloid light-chain (AL) or transthyretin (ATTR) amyloidosis, the latter due to the deposition of normal proteins (formerly known as senile amyloidosis) or mutated proteins. Cardiac amyloidosis (CA) has a poor prognosis that further worsens if the diagnosis and treatment are delayed. Nuclear medicine techniques have emerged as important tools for the diagnosis and characterization of CA. It has been recently demonstrated that cardiac uptake of bone tracers allows to identify the deposition of transthyretin in the heart, while it is not useful for the diagnosis of AL-CA, which currently requires the histological demonstration of amyloid fibers in a tissue sample taken with invasive procedures such as an endomyocardial biopsy. Recently, some PET tracers developed to identify beta-amyloid deposits in the brain proved able to detect an uptake even in the heart; nonetheless their possible use to diagnose CA is still debated. One of those tracers is florbetaben labelled with 18F, which displays a high binding affinity with beta-amyloid in the brain, while the experience on its use to identify extracranial amyloid deposits is still limited. Three studies have reported a cardiac uptake of 18F-florbetaben in AL or ATTR amyloidosis. Tracer uptake could be detected starting from 15 minutes after tracer administration. In a case series of 60 patients (20 with AL-CA, 20 with ATTR-CA and 20 with CA suspected but excluded) we demonstrated that the evidence of a myocardial uptake in a late acquisition can effectively discriminate AL- from ATTR-CA or other conditions. Indeed, patients with AL-CA displayed an intense and persistent myocardial uptake in static acquisitions at all time points, while patients with ATTR-CA and those without CA displayed a rapid reduction of the uptake after the early acquisition. This study aims to compare the performance of PET/CT with 18F-florbetaben to diagnose AL-CA compared with the current diagnostic standard, which requires a tissue biopsy. Primary objective: To define the agreement (with its 95% confidence interval) between two diagnostic approaches to the diagnosis of AL-CA in patients with a monoclonal protein: the traditional invasive approach and a non-invasive approach using the visual assessment of 18F-florbetaben PET/TC. Secondary objectives: - To define the diagnostic performance of PET/CT with 18F-florbetaben (visual evaluation) in terms of sensitivity, specificity, positive and negative predictive value; - To define cut-offs from myocardial uptake quantification to confirm or discard AL-CA among patients with suspected CA and a monoclonal protein, compared to the standard diagnostic algorithm, from quantitative uptake values; - To assess the changes in the degree of myocardial 18F-florbetaben uptake over 12 months in patients with AL-CA; - To assess the safety and tolerability of PET/CT with 18F-florbetaben in patients evaluated for suspected CA.
The project aims to investigate the validity, and reliability of outcome measures of muscle strength, functioning (gait, balance, and fine motor skills), physical activity, and patient-reported outcome measures of functioning (gait, balance, and fine motor skills), and daily living among patients with polyneuropathy. Further, the project aims to compare physical activity and patient-reported outcome measures of functioning (gait, balance, and fine motor skills), and daily living among patients with polyneuropathy with physical activity and patient-reported outcome measures of functioning (gait, balance, and fine motor skills) and daily living in healthy adults.
Primary objective: To identify older adults with transthyretin cardiac amyloidosis (ATTR-CA) early in the course of the illness, at a time when disease modifying therapies are most effective. The specific aims of this epidemiologic investigation include: 1. To identify subjects with previous lumbar spinal stenosis (LSS) Surgery who have evidence of transthyretin (TTR) amyloid deposits in spinal specimens and could be at risk for ATTR cardiac amyloidosis. 2. To evaluate for ATTR-CA among those with localized TTR in the spinal tissue. The study will also explore the following: 1. The prevalence of amyloid in lumbar spinal stenosis specimens by Congo Red staining. 2. The prevalence of TTR deposits among subjects with amyloid as determined by mass spectrometry. 3. Evaluation of a novel artificial intelligence technique for that can identify amyloid histologically with standard H&E staining. 4. Difference in ATTR-CA prevalence between subjects with TTR and indeterminate amyloid deposits in subject's spine by myocardial uptake of technetium pyrophosphate scan (Tc99-PYP).
This phase III trial compares the effect of adding a stem cell transplant with melphalan after completing chemotherapy with daratumumab, cyclophosphamide, bortezomib and dexamethasone (Dara-VCD) versus chemotherapy with Dara-VCD alone for treating patients with newly diagnosed amyloid light chain (AL) amyloidosis. Melphalan is a chemotherapy given prior to a stem cell transplant. Giving chemotherapy before a peripheral blood stem cell transplant helps kill cancer cells in the body and helps make room in the patient's bone marrow for new blood-forming cells (stem cells) to grow. The stem cells are then returned to the patients to replace the blood forming cells that were destroyed by the chemotherapy. Daratumumab is in a class of medications called monoclonal antibodies. It binds to a protein called CD38, which is found on some types of immune cells and cancer cells, including myeloma cells. Daratumumab may block CD38 and help the immune system kill cancer cells. Chemotherapy drugs, such as cyclophosphamide and bortezomib, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Dexamethasone is in a class of medications called corticosteroids. It is used to lower the body's immune response to help stop the growth of cancer cells. Giving a stem cell transplant with melphalan after Dara-VCD may kill more cancer cells in patients with newly diagnosed AL amyloidosis.
ATTR-cardiac amyloidosis (CA) is present in 4% to 16% of elderly patients with severe calcific aortic stenosis (AS). The reasons for this association are not fully known. It is hypothesized that an amyloidotic infiltration of the aortic valve acts as a trigger for the development of endothelial damage and subsequent calcification. Elderly patients undergoing TAVI will be evaluated for the presence of ATTR-CA in Jordan.