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Showing 1-20 of 77 trials
NCT06828705
Datscan scintigraphy is a nuclear medicine examination allowing the diagnosis of neurodegenerative pathologies linked to damage to dopaminergic pathways, such as Parkinson's disease (essential for the differential diagnosis of essential tremor).
NCT05508789
The reason for this study is to assess the safety and efficacy of donanemab in participants with early Alzheimer's disease. The study duration including screening and follow-up is up to 93 weeks.
NCT07566728
Dementia is a neurocognitive disorder that causes a deterioration in cognitive function, significantly impacting social and work abilities and daily activities. Alzheimer's disease is diagnosed when cognitive decline affects at least two cognitive domains, one of which must involve memory. Mild Cognitive Impairment (MCI) is a critical diagnosis as it represents a potentially early stage of cognitive decline. In the DSM-5, MCI is defined as a "minor neurocognitive disorder," characterized by functional decline affecting at least one of six cognitive domains: memory and learning, language, visuospatial function, attention, executive function, and social functioning. It is important to emphasize that this decline is not severe enough to significantly impair the patient's daily activities. In this context, support for people with MCI and dementia is crucial, not only at the family and social level, but also through the adoption of innovative technological solutions. Artificial intelligence (AI) is emerging as a valuable tool for early diagnosis, and through machine learning processes, it is possible to predict cognitive decline, thus providing personalized treatment and day-to-day patient management. This allows for intervention at a less advanced stage of the disease, thus slowing its progression, while maintaining autonomy and independence for as long as possible, which tends to decline over time in this patient population. Investing in innovative technologies is therefore essential not only to improve prevention and treatment opportunities but also to provide concrete support to caregivers, especially at a time when the aging population requires an increasingly structured and effective global response. The objectives of the study are as follows: * The objective of this study is to evaluate the effectiveness of software in administering cognitive and motor tests via a humanoid robot in patients with early-stage Alzheimer's disease (AD) or other forms of mild to moderate dementia. * Support medical professionals in personalizing therapeutic treatments, using predictive models based on advanced artificial intelligence systems. These models will begin by collecting, monitoring, and processing demographic and clinical data and the results of cognitive and motor assessments obtained from patients to predict the course of the disease and the effectiveness of rehabilitation treatments. This will then allow them to suggest personalized treatment options and optimize care pathways, thus improving overall clinical outcomes.
NCT07545473
Hyperspectral retinal imaging is a non-invasive imaging modality in which a series of images of the retina are captured using light of different wavelengths. The resulting "hypercube" of data provides a wealth of information about the retinal structure. Our group has developed evidence supporting a role for this technology in the detection of retinal amyloid beta in Alzheimer's disease. We are undertaking further studies to establish the role of this method in the assessment of people with dementia, or those at risk of Alzheimer's disease. In addition, we wish to test whether the approach may have value in other forms of dementia or neurodegenerative disease such as Parkinson's disease, Lewy-Body dementia or vascular dementia.
NCT06672237
This study will be conducted to evaluate the efficacy and safety of a single dose of nexiguran ziclumeran (NTLA-2001) compared to placebo in participants with ATTRv-PN.
NCT00271622
The purpose of this protocol is to allow for the careful evaluation of healthy volunteers and individuals with risk for psychiatric disorders or neurodevelopmental disorders, such as autism spectrum disorder for specific protocols at NIH.
NCT06821230
The proposed two-arm randomized waitlist-controlled trial will use a mixed-methods design to investigate the effects of dyadic mindfulness on physio-psycho-spiritual outcomes in people with Parkinson's Disease (PwPD) and their family caregivers. One hundred Chinese patient-caregiver dyads will be randomized to receive eight weekly 90-minute dyadic mindfulness sessions or usual care. Outcome measures include negative emotions (primary outcome), patient-caregiver relationship, mindfulness, HRQOL, gut microbiome, PD-related symptoms, and caregiving burden. An actor-partner interdependence model will be used to explore the interactions of treatment effects within the dyads. The dyads will be assessed at baseline(T0), post-intervention(T1), and 4-months post-intervention(T2). The investigators will also invite 25 dyads to attend in-depth interviews exploring their experiences, perceived changes, and factors attributable to the effectiveness/ineffectiveness of the intervention. Generalized linear mixed-effects (GLME) with intention-to-treat analysis will be used to compare the changes in outcomes over time within and between the two arms. The findings will be triangulated to provide a comprehensive evaluation of the intervention's effectiveness. This study will generate rigorous scientific evidence to inform the application of dyadic mindfulness as a public health practice preventing the progression of psychological distress in PwPD and caregivers to clinically severe levels. Its self-help nature also enriches the primary care for this clinical cohort.
NCT04838301
A phase 2, double-blind, randomized, placebo-controlled clinical trial to evaluate the safety and efficacy of Allopregnanolone as a regenerative therapeutic for Alzheimer's disease.
NCT07470710
In this clinical trial, we intend to perform 18F-FCOB04 PET imaging in patients with neurodegenerative diseases to observe the brain uptake of this tracer.We will investigate the distinct imaging patterns of brain MAO-B expression in patients with various neurodegenerative diseases.Correlation analysis will be conducted between imaging findings and relevant clinical indicators.This study aims to evaluate the role of 18F-FCOB04 in the auxiliary diagnosis of neurodegenerative diseases, as well as to assess the tolerability and safety of the tracer and the imaging procedure.
NCT05522387
The goal of this Phase 2 Open Label study is to evaluate long-term safety, tolerability, and efficacy of XPro1595 on measures of cognition, function and brain quality in individuals with Alzheimer's Disease.
NCT07307872
The ADCHIP study (ST0067) is a non-interventional, monocentric, prospective study conducted by Amoneta Diagnostics and the Leenaards Memory Center (Lausanne, Switzerland). Its main objective is to develop and validate a microfluidic chip-based protocol that stabilizes human red blood cells for several weeks, enabling subsequent testing of blood biomarkers for Alzheimer's disease (AD) diagnosis. This proof-of-performance study will include 150 well-characterized participants divided equally into three groups: 50 patients with Alzheimer's disease (AD), 50 with non-Alzheimer neurodegenerative diseases (NAD, including Parkinson's disease and frontotemporal dementia), and 50 healthy controls (HC). The primary objective is to assess the diagnostic performance (sensitivity and specificity) of two main blood-based biomarkers-amyloid-β (Aβ) and protein kinase C (PKC)-measured using Amoneta's proprietary fluorescent assays and chip-cytometry technology. The secondary objective is to evaluate emerging biomarkers (proteins, RNA signatures, metabolomic and lipidomic profiles) for Alzheimer's disease detection. No therapeutic intervention will be administered; only biological samples (blood and urine) will be collected. Results will be compared with existing clinical, imaging, and cerebrospinal fluid (CSF) biomarkers. The study aims to provide a reliable, non-invasive, and affordable blood test for early Alzheimer's diagnosis, with potential applications for patient stratification and therapeutic monitoring in future clinical trials.
NCT07306598
In the field of diagnosing brain neurodegenerative diseases, it is now a well-established practice to inject positron-emitting tracers into the human body. These tracers bind to specific target proteins, allowing their distribution to be visualized via PET imaging. Currently, several research groups worldwide are engaged in developing and clinically validating their own tau imaging agents. This clinical research project aims to visualize abnormal tau pathology in the living human brain using \[18F\]NIDF PET imaging. \[18F\]NIDF is a 2-arene-azaindole-based tracer that offers stronger binding affinity to tau neurofibrillary tangles and reduced non-specific/off-target binding compared to existing tau-PET imaging agents. The study primarily focuses on evaluating the safety and diagnostic efficacy of \[18F\]NIDF PET imaging in human subjects.
NCT04380649
"Brain-computer interfaces (BCIs) are computer-based systems that acquire brain signals, analyze them, and translate them into commands that are relayed to an output device to carry out a desired action. BCIs represent a very active and promising field of research among devices for people with severe motor disabilities. As the currently available systems correspond to research prototypes, they are not adapted to daily live situations. On the other hand, some systems have recently been commercialized, principally for video games but they are not satisfactory for use as a substitute technology in disability. A BCI's prototype for alternative communication using a virtual keyboard, the P300 Speller, has been developed by the National Institute for Research in Digital Science and Technology (Athena team - Nice University). This prototype includes an EEG-cap with gel based active electrodes. A recent study conducted on 20 patients with ALS (University Hospital, Nice) demonstrated the usability of the system and the patient satisfaction concerning the ease of use and utility. To achieve a system that can be used in daily live in severely disabled patients, technical developments are necessary. The investigators have conceptualized and developed an ergonomic, comfortable, headset, including dry electrodes to allow a prolonged use of the system. The purpose of the study conducted all along the development of the headset is to improve the developed system until a successful system is achieved. This study is a monocentric usability study conducted on ALS people.
NCT05741853
Difficulties with speech and language are the first and most notable symptoms of primary progressive aphasia (PPA). While there is evidence that demonstrates positive effects of speech-language treatment for individuals with PPA who only speak one language (monolinguals), there is a significant need for investigating the effects of treatment that is optimized for bilingual speakers with PPA. This stage 2 efficacy clinical trial seeks to establish the effects of culturally and linguistically tailored speech-language interventions administered to bilingual individuals with PPA. The overall aim of the intervention component of this study is to establish the relationships between the bilingual experience (e.g., how often each language is used, how "strong" each language is) and treatment response of bilinguals with PPA. Specifically, the investigators will evaluate the benefits of tailored speech-language intervention administered in both languages to bilingual individuals with PPA (60 individuals will be recruited). The investigators will conduct an assessment before treatment, after treatment and at two follow-ups (6 and 12-months post-treatment) in both languages. When possible, a structural scan of the brain (magnetic resonance image) will be collected before treatment in order to identify if brain regions implicated in bilingualism are associated with response to treatment. In addition to the intervention described herein, 30 bilingual individuals with PPA will be recruited to complete behavioral cognitive-linguistic testing and will not receive intervention. Results will provide important knowledge about the neural mechanisms of language re-learning and will address how specific characteristics of bilingualism influence cognitive reserve and linguistic resilience in PPA.
NCT03143374
The purpose of this study is to measure the amount of a protein in the brain known as tau using an imaging procedure called Positron Emission Tomography (PET/CT). Tau has been shown to build up in the brains of patients with injury to brain cells. This study looks at neurodegenerative diseases such as frontotemporal degeneration (FTD).
NCT05516719
In this study, the researchers aim to find a biomarker of PD. Using imaging scans called Positron Emission tomography (PET), Single Photon Emission Computed Tomography (SPECT), and Magnetic Resonance Imaging (MRI). The PET and SPECT scans use small amounts of radiation and specific compounds called tracers, to study chemical changes in the brain in a way not possible with any other procedure. The MRI uses magnetic fields to generate images of brain structure and function
NCT05318976
The goal of this Phase 2 Alzheimer's study is to determine whether 1.0 mg/kg XPro1595 confers a benefit on cognition, function, and biomarkers of white matter and to further evaluate safety and tolerability. The objectives of this study are to determine the safety, tolerability, and efficacy of XPro1595 in patients with early ADi.
NCT05357612
It is hypothesize that patients with clinically diagnosed neurodegenerative diseases will have significantly different receptor occupancy of 5HT2A receptors compared to a healthy age/sex-matched control group. This will be tested by measuring 5HT2A receptor density using the PET radioligand (R)-\[18F\]MH.MZ in both populations.
NCT06725706
To evaluate the potential usefulness of 18F-92/AV45, 11C-PIB positron emission tomography/computed tomography (PET/CT) for the diagnosis of primary and metastatic lesions in various Tau-related disease patients.
NCT06993142
The goal of this clinical trial is two-fold. First to investigate the feasibility of whether a remotely administered smartphone app can increase the volume and intensity of physical activity in daily life in individuals with a LRRK2 G2019S or GBA1 N370S genetic mutation over a long period of time (24 months). Second, to explore the preliminary efficacy of exercise on markers for prodromal Parkinson's disease progression in individuals with a LRRK2 G2019S or GBA1 N370S genetic mutation. Participants will be tasked to achieve an incremental increase of daily steps (volume) and amount of minutes exercised at a certain heart rate (intensity) with respect to their own baseline level. Motivation with regards to physical activity will entirely be communicated through the study specific Slow Speed smartphone app. A joint primary objective consists of two components. First to determine the longitudinal effect of an exercise intervention in LRRK2 G2019S or GBA1 N370S variant carriers on a prodromal load score, comprised of digital biomarkers of prodromal symptoms. The secondary component of the primary outcome is to determine the feasibility of a remote intervention study. The secondary objective is the effect of a physical activity intervention on digital markers of physical fitness. Exploratory outcomes entail retention rate, completeness of remote digital biomarker assessments, digital prodromal motor and non-motor features of PD. Using these biomarkers, the investigators aim to develop a composite score (prodromal load score) to estimate the total prodromal load. An international exercise study with fellow researchers in the United Kingdom are currently in preparation (Slow-SPEED-UK) and active in the Netherlands (Slow-SPEED-NL). Our intention is to analyse overlapping outcomes combined where possible through a meta-analysis plan, to obtain insight on (determinants of) heterogeneity in compliance and possible efficacy across subgroups