Active clinical trials for "Amyloidosis"

TTR-FAP is a rare disabling inherited disorder that predominantly affects the peripheral nervous system and the heart. Due to an important phenotypic and genetic heterogeneity, the diagnosis is often delayed, preventing therefore early onset treatment. Our project is to evaluate the prevalence of TTR-FAP in a series of 130 patients with from chronic neuropathy of undetermined aetiology through a systematic screening of TTR mutations.

Cardiac amyloidosis is a disorder characterized by the deposition of abnormal proteins called amyloid in the heart tissue. This makes it difficult for the heart to function properly. The investigators wish to evaluate if the radiopharmaceutical 18F-Florbetaben (Neuraceq®) that targets beta amyloid can also identify cardiac amyloid deposition.

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.

Alzheimer's disease (AD) is the most common cause of dementia and currently has no disease modifying treatments or simple accurate diagnostic tests. The goal of this project is to study how amyloid-beta (a protein thought to cause AD) is made, transported and cleared in the human body. Better understanding of these processes may lead to improved understanding of AD, earlier diagnosis and a way to evaluate treatment.

Cardiac amyloidosis are related to the accumulation of fibrillar proteins in the extracellular leading to disruption of the cardiac tissue architecture. Amyloidosis in transthyretin (TTR) are the most common hereditary amyloidosis but remain poorly studied at heart. This is serious and deadly. The prevalence of TTR amyloidosis is probably underestimated in hypertrophic cardiomyopathy (HCM) often of unknown etiology because of the lack of systematic implementation of myocardial biopsy because of their side effects.

This is a retrospective, observational, multicenter study to collect Real-World Evidence (RWE) data on systemic AL-AMY patients in Europe. Data from paper/electronic medical records and/or electronic databases from key reference centers in Europe will be used. Data will either be entered by the site staff in the electronic Case Report Form (eCRF) or, where feasible, transferred directly, always in accordance to local regulations.

By combination of plasma (Aβ40, Aβ42, total tau, and phosphorylated tau, etc.), genetic (ApoE ε2 or ε4 allele), MRI (cerebral perfusion, microbleeds, cortical superficial siderosis, enlarged perivascular space, etc.) and PET imaging (amyloid and tau) biomarkers, the study aims to Enhance the diagnostic potentials of the radiological biomarkers by combining MRI and amyloid PET in CAA patients. Investigate the biological pathogenesis in CAA patients using the less invasive plasma biomarkers and to correlate with structural and function imaging, including MRI, amyloid and tau imaging. Study the characteristics of long-term progression of amyloid deposition in CAA patients using the radiological, biochemical and genetic biomarkers. Study the prognosis predicting markers.

To evaluate the effectiveness of patisiran in patients with ATTRv amyloidosis with polyneuropathy who have a V122I or T60A mutation.

Diagnostic tests designed to detect Alzheimer's disease (AD) pathology are increasingly popular in research on cognitive aging and AD. Due to concerns that information from such tests may be misunderstood, psychologically harmful, and of unclear clinical significance, results of pre mortem tests of AD pathology have typically been withheld from research participants. However, as the reliability and potential clinical significance of tests like brain amyloid imaging have become clear, there is a pressing need to revisit the practice of unilaterally withholding such information from research participants and identify responsible approaches to communicating individual results. Amyloid imaging results may be particularly relevant to mild cognitive impairment (MCI), a population for whom a growing body of evidence suggests that such testing may provide valuable prognostic and planning information, despite the unavailability of interventions to alter one's clinical course. Our preliminary work suggests that research participants with MCI and their family members are receptive to and capable of understanding information about the purpose, results, and implications of amyloid imaging when presented using a standardized approach developed by our interdisciplinary team. Building on this work, the proposed study will examine a well characterized sample of MCI care dyads (patient + family member) who will be randomized to either receive the opportunity to decide if they would like to pursue an amyloid PET Scan, or be randomized to not receive that opportunity (and will serve in the no-scan comparison group). This study aims to test hypotheses that examine how receiving amyloid imaging results will impact understanding of, and perceived self-efficacy for coping with, MCI among both patients and care partners.

This protocol seeks to enroll smoldering multiple myeloma (SMM) and monoclonal gammopathy of undetermined significant (MGUS) patients with λ light chain (LC) involvement, a group of patients for whom standard of care is observation not treatment. Patients with SMM and MGUS have a precursor plasma cell disorder from which light chain amyloidosis (AL) can evolve. In this trial, enrolled subjects will have blood and if available bone marrow cells evaluated by molecular testing to determine their clonal λ LC variable region (VL) germline gene. Seventy percent of AL cases involve just 7 germline donors, 5 of which are λ germline donors. The hypothesis that will be tested with this protocol is that the presence of AL germline genes associated with AL in patients with a pre-existing diagnosis of λ SMM or λ MGUS indicates the presence of AL or risk of progression to AL.