View clinical trials related to Amyloidosis.
Filter by:Carpal tunnel is an early manifestation of amyloidosis in a significant minority of patients. This specimen collection protocol will allow the investigators to screen patients with carpal tunnel syndrome for amyloidosis.
This is an online registry to document the psychometric properties of SF-36v2 among patients with AL Amyloidosis, to document patients' burden of disease, to better understand the patient's experience and to follow quality of life issues using a variety of QOL measures.
The diagnosis of Alzheimer's disease (AD) is based on clinical and neuropathological criteria. Some patients have a contributive CSF biology to determinate a high level risk of AD (Tau + phospho-tau ratio increased and Ab42 / decreased Aβ40), but others have an intermediate CSF biology (Tau and/or phospho-tau increased but Ab42 ratio / normal Aβ40) and are unclassifiable. 18F-Florbetaben (Neuraceq®), a radioisotope in positron emission tomography (PET), selectively binds to amyloid plaques, with high detection sensitivity (98%). Detection of amyloid plaques by PET imaging separate patients according to the criteria of Dubois, as with AD and allow them to benefit a cholinesterase inhibitor treatment. If negative, the diagnosis of AD can be excluded with a high level of confidence to prevent initiating unnecessary treatment, expensive for the community. This is the first imaging study of amyloid plaques targeting population whose diagnosis of AD is uncertain according to the CSF biology. The aim of this study is to describe the results of amyloid PET in case of intermediate CSF biology and to separate patients as AD or not according to the criteria of Dubois
This protocol will assess patients with AL amyloidosis who achieve a complete response (CR) or very good partial response (VGPR) to therapy for minimal residual disease (MRD). Three approaches to MRD testing will be used since there is no established method. The investigators will clone and sequence each patient's light chain (LC) gene and design patient-specific primers to evaluate genomic DNA from future marrow specimens. Whole genome sequencing (WGS) will be used to test baseline and follow-up marrow cell DNA, seeking copy number variations in chromosomes 1 and 2 or 22, and structural variations in chromosomes 11 and 14, consistent with the known genetic abnormalities in AL and with clonal LC gene use. Plasma protein analysis by mass spectrometry will also be used to look for fragmentary protein sequences associated with the culprit LC gene of each subject. The feasibility and predictive value of these three approaches in patients achieving CR or VGPR will be evaluated. This protocol will help provide insight into the ways that the disease changes and progresses. MRD testing is likely an important next step in AL management.
This study evaluates the safety and efficacy of carfilzomib used in combination with thalidomide and dexamethasone in patients with relapsed AL amyloidosis. The trial begins with a dose escalation phase, in which the maximum tolerated and recommended dose will be determined. The trial will then open into an expansion phase in which the combination efficacy is assessed.
A method of detecting amyloid in the retina has been developed. A specially designed retinal camera will directly visualze and record retinal amyloid and via image processing will generate a number: the retinal amyloid index (RAI). The amount of retinal amyloid correlates with cerebral amyloid and has a predictive value in Alzheimer's disease. Telomere attrition accounts for cellular aging and is felt to have a pivotal role in Alzheimer's disease. The investigators plan to screen individuals to select those having retinal amyloid then evaluate an oral telomerase activator to determine if its use can alter the RAI over time compared to placebo.
The purpose of this study is to evaluate the safety and efficacy of long-term dosing with ALN-TTR02 (patisiran) in participants with transthyretin (TTR) mediated amyloidosis (ATTR).
The LEARN study a multicenter, observational study will that will evaluate the rate of cognitive change in approximately 500 clinically normal older individuals who "screen-fail" for the A4 trial on the basis of their screening PET imaging not demonstrating evidence of elevated amyloid accumulation (Aβ negative) but meet all other A4 study eligibility criteria. This study will leverage the A4 infrastructure and maximize the data acquired in screening a large number of well-characterized older adults for the A4 trial. The LEARN observational cohort will provide a critical comparison group for the A4 placebo arm, and future trials in preclinical AD. Although accumulating longitudinal data suggest that older individuals with elevated Aβ burden are at increased risk of cognitive decline, it is important to demonstrate a differential rate of clinical decline between Aβe ("Aβ elevated") and Aβne ("Aβ not elevated") individuals on a standardized set of clinical outcomes. Over 2000 well-characterized, highly motivated older volunteers will "screen fail" for the A4 trial. The LEARN study will follow 500 of these individuals, matched as closely as possible to the two treatment arms, in this observation cohort. The LEARN study may selectively recruit from a specific range of SUVr that fall below the threshold for "elevated amyloid" in order to support analyses of the relationship of baseline SUVr to subsequent cognitive change and amyloid accumulation. The observational cohort will be followed for 384 weeks with identical clinical/cognitive testing performed every 24 weeks, running parallel to the A4 treatment study and open label extension.
Although the use of bortezomib has reported efficacy in amyloid light chain (AL) amyloidosis, the role of bortezomib with dexamethasone (BD) in the first-line treatment of patients with AL amyloidosis should be determined. In this study, the investigators evaluated the efficacy and safety of BD as the first-line treatment of patients with AL amyloidosis.
This is a clinical proof-of-concept (PoC) study of DNA vaccination after SAP depletion. The investigators will measure the immune responses to DNA vaccination against HIV-1 in healthy adult male volunteers, comparing a group in whom SAP has been completely depleted at the time of DNA vaccination and a control group vaccinated without SAP depletion.