Exploration of the Enteric Nervous System in Alzheimer Disease

Status Withdrawn

Clinical Trial Summary

The close homology between the central and enteric nervous system suggests that a disease process affecting the central nervous system could also involve its enteric counterpart. This has already been demonstrated for patients with Parkinson's disease but needs to be proven for Alzheimer's disease. Studies on enteric nervous system during Alzheimer's disease are indeed in low number and don't have led to definite conclusion. The investigators thus propose to realize a complete analysis of the enteric nervous systems in Alzheimer's disease by studying the presence of "tau' protein, of beta-amyloid peptide,...

not only by immunohistochemical but also by a biochemical approach. This study will be realized from colonic samples.

Clinical Trial Description

The close homology between the central and enteric nervous system suggests that a disease process affecting the central nervous system could also involve its enteric counterpart. The investigators have recently shown in that the enteric neurons can be readily analyzed using routine colonic biopsies. The investigators propose that the enteric nervous system could represent a unique window to assess the neuropathology in living patients with a neurodegenerative disorder. The investigators have already used this approach to show that Parkinson's disease pathology was recapitulated in a single colonic biopsy. By contrast to Parkinson's disease, the detection of Alzheimer's disease pathology in the enteric neurons has so far failed. This may be due to the low number of human tissue samples in addition to the low sensitivity of the immunohistochemical methods that were used. The aim of the current research project will be therefore to reevaluate Alzheimer's disease pathology in a large number of human colonic samples using both a morphological and biochemical approach.

The Hypothesis is that the enteric nervous system could represent a unique window to assess the neuropathology in living patients with Alzheimer's disease. This might open the way to the development of novel Alzheimer's disease biomarkers that will directly assess the neuropathological process. ;

Study Design

Related Conditions & MeSH terms

Alzheimer Disease

Clinical Trial Details

NCT number	NCT03472183
Study type	Interventional
Source	Nantes University Hospital
Contact
Status	Withdrawn
Phase	N/A
Start date	April 26, 2018
Completion date	September 18, 2019

View Details

See also
Status	Clinical Trial	Phase
Completed	`NCT04044495` - Sleep, Rhythms and Risk of Alzheimer's Disease	N/A
Completed	`NCT04079803` - PTI-125 for Mild-to-moderate Alzheimer's Disease Patients	Phase 2
Terminated	`NCT03052712` - Validation and Standardization of a Battery Evaluation of the Socio-emotional Functions in Various Neurological Pathologies	N/A
Recruiting	`NCT04520698` - Utilizing Palliative Leaders In Facilities to Transform Care for Alzheimer's Disease	N/A
Active, not recruiting	`NCT04606420` - Can Lifestyle Changes Reverse Early-Stage Alzheimer's Disease	N/A
Recruiting	`NCT05820919` - Enhancing Sleep Quality for Nursing Home Residents With Dementia - R33 Phase	N/A
Terminated	`NCT03672474` - REGEnLIFE RGn530 - Feasibility Pilot	N/A
Completed	`NCT03430648` - Is Tau Protein Linked to Mobility Function?
Recruiting	`NCT04949750` - Efficacy of Paper-based Cognitive Training in Vietnamese Patients With Early Alzheimer's Disease	N/A
Recruiting	`NCT04522739` - Spironolactone Safety in African Americans With Mild Cognitive Impairment and Early Alzheimer's Disease	Phase 4
Recruiting	`NCT05557409` - A Study to Assess the Efficacy and Safety of AXS-05 in Subjects With Alzheimer's Disease Agitation	Phase 3
Recruiting	`NCT05288842` - Tanycytes in Alzheimer's Disease and Frontotemporal Dementia
Completed	`NCT06194552` - A Multiple Dose Study of the Safety and Pharmacokinetics of NTRX-07	Phase 1
Completed	`NCT03239561` - Evaluation of Tau Protein in the Brain of Participants With Alzheimer's Disease Compared to Healthy Participants	Early Phase 1
Completed	`NCT03184467` - Clinical Trial to Evaluate the Efficacy and Safety of GV1001 in Alzheimer Patients	Phase 2
Active, not recruiting	`NCT03676881` - Longitudinal Validation of a Computerized Cognitive Battery (Cognigram) in the Diagnosis of Mild Cognitive Impairment and Alzheimer's Disease
Terminated	`NCT03487380` - Taxonomic and Functional Composition of the Intestinal Microbiome: a Predictor of Rapid Cognitive Decline in Patients With Alzheimer's Disease	N/A
Completed	`NCT05538455` - Investigating ProCare4Life Impact on Quality of Life of Elderly Subjects With Neurodegenerative Diseases	N/A
Recruiting	`NCT05328115` - A Study on the Safety, Tolerability and Immunogenicity of ALZ-101 in Participants With Early Alzheimer's Disease	Phase 1
Completed	`NCT05562583` - SAGE-LEAF: Reducing Burden in Alzheimer's Disease Caregivers Through Positive Emotion Regulation and Virtual Support	N/A

Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Exploration of the Enteric Nervous System in Alzheimer Disease — SYNEMA

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms