Advertisement

Topics

Treatment of Alzheimer's Disease With CX516 (Ampalex)

2014-08-27 03:59:27 | BioPortfolio

Summary

Glutamate is an amino acid released by brain cells that acts to excite other cells. Glutamate attaches to special sites on cells called AMPA (alpha-amino-2,3-dihydro-5 methyl 3-oxo-4-isoxazolepropanoic acid) receptors. The brain cells responsible for releasing glutamate are damaged in Alzheimer's disease and other conditions affecting thinking and reasoning.

Researchers would like to see if giving patients a drug that attaches to AMPA receptors improves the symptoms of Alzheimer's disease.

CX516 (Ampalex) is a test drug that affects the AMPA receptors. This study will investigate the effectiveness and safety of CX516 on patients with Alzheimer's disease.

Patients will be given capsules of CX516 or placebo (sugar pill that neither harms nor helps) for up to 16 weeks in different amounts. The effectiveness of the drug will be measured by neurological tests. Safety will be monitored by frequent check-ups and lab examinations.

Description

Stimulation of neuronal excitatory amino acid receptors is an important step in the formation of memory. It is unknown whether stimulation of these receptors in patients with Alzheimer's disease and dementing disorders will improve cognitive function. To determine whether positive modulation of AMPA receptors, active in animal models of dementia, can improve cognitive function in demented patients, CX516, at a dose of 900mg TID, will be administered orally for 12 weeks in patients with dementia. In this randomized, controlled proof-of-principle study, drug-induced alterations in intellectual function will be measured by standardized neuropsychological tests. Safety will be monitored by frequent clinical assessments and laboratory tests.

Study Design

Endpoint Classification: Safety/Efficacy Study, Primary Purpose: Treatment

Conditions

Alzheimer's Disease

Intervention

CX516 (Ampalex)

Location

National Institute of Neurological Disorders and Stroke (NINDS)
Bethesda
Maryland
United States
20892

Status

Completed

Source

National Institutes of Health Clinical Center (CC)

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:59:27-0400

Clinical Trials [859 Associated Clinical Trials listed on BioPortfolio]

Effects of CX516 on Functioning in Fragile X Syndrome and Autism

This study will investigate whether CX516 can improve attention, memory, language, or behavior in adults with Fragile X Syndrome and/or Autism. CX516 is an AMPAKINE® compound. AMPAKINE ...

Efficacy And Safety Of CX516 In Elderly Participants With Mild Cognitive Impairment.

Glutamate is fundamentally involved in learning and memory. Memory loss associated with mild cognitive impairment may be due to loss of glutamate receptors in the aging brain. There is ev...

Trial of Ampakine Added to Clozapine, Olanzapine or Risperidone in Patients With Schizophrenia

The purpose of this study is to evaluate the effects of a four-week trial of CX516 900mg tid compared to placebo upon verbal memory, attention and negative symptoms. The AMPA receptor pos...

Dominantly Inherited Alzheimer Network (DIAN)

The purpose of this study is to identify potential biomarkers that may predict the development of Alzheimer's disease in people who carry an Alzheimer's mutation.

Blood Biomarker of Alzheimer's Disease (AD)

Currently, no cures or disease modifying therapies exist for Alzheimer's disease (AD). This is partially due to the inability to detect the disease before it has progressed to a stage wher...

PubMed Articles [14907 Associated PubMed Articles listed on BioPortfolio]

Imaging correlations of tau, amyloid, metabolism, and atrophy in typical and atypical Alzheimer's disease.

Neuroimaging modalities can measure different aspects of the disease process in Alzheimer's disease, although the relationship between these modalities is unclear.

Cerebrospinal Fluid C-C Motif Chemokine Ligand 2 Correlates with Brain Atrophy and Cognitive Impairment in Alzheimer's Disease.

Chronic neuroinflammation has been implicated in Alzheimer's disease (AD) pathology.

Disentangling the biological pathways involved in early features of Alzheimer's disease in the Rotterdam Study.

Exploring the role of Alzheimer's disease (AD) implicated pathways in the predementia phase may provide new insight for preventive and clinical trials targeting disease specific pathways.

Cortical microstructural changes along the Alzheimer's disease continuum.

Cortical mean diffusivity (MD) and free water (FW) changes are proposed biomarkers for Alzheimer's disease (AD).

Memantine for Alzheimer's Disease: An Updated Systematic Review and Meta-analysis.

The clinical benefit of memantine for Alzheimer's disease (AD) remains inconclusive.

Medical and Biotech [MESH] Definitions

Abnormal structures located chiefly in distal dendrites and, along with NEUROFIBRILLARY TANGLES and SENILE PLAQUES, constitute the three morphological hallmarks of ALZHEIMER DISEASE. Neuropil threads are made up of straight and paired helical filaments which consist of abnormally phosphorylated microtubule-associated tau proteins. It has been suggested that the threads have a major role in the cognitive impairment seen in Alzheimer disease.

Vaccines or candidate vaccines used to prevent or treat ALZHEIMER DISEASE.

A progressive form of dementia characterized by the global loss of language abilities and initial preservation of other cognitive functions. Fluent and nonfluent subtypes have been described. Eventually a pattern of global cognitive dysfunction, similar to ALZHEIMER DISEASE, emerges. Pathologically, there are no Alzheimer or PICK DISEASE like changes, however, spongiform changes of cortical layers II and III are present in the TEMPORAL LOBE and FRONTAL LOBE. (From Brain 1998 Jan;121(Pt 1):115-26)

A carbamate-derived reversible CHOLINESTERASE INHIBITOR that is selective for the CENTRAL NERVOUS SYSTEM and is used for the treatment of DEMENTIA in ALZHEIMER DISEASE and PARKINSON DISEASE.

A biochemical phenomenon in which misfolded proteins aggregate either intra- or extracellularly. Triggered by factors such as MUTATION, POST-TRANSLATIONAL MODIFICATIONS, and environmental stress, it is generally associated with ALZHEIMER DISEASE; PARKINSON DISEASE; HUNTINGTON DISEASE; and TYPE 2 DIABETES MELLITUS.

More From BioPortfolio on "Treatment of Alzheimer's Disease With CX516 (Ampalex)"

Advertisement
Quick Search
Advertisement
Advertisement

 

Relevant Topics

Alzheimer's Disease
Of all the types of Dementia, Alzheimer's disease is the most common, affecting around 465,000 people in the UK. Neurons in the brain die, becuase  'plaques' and 'tangles' (mis-folded proteins) form in the brain. People with Al...

Pharmacy
Pharmacy is the science and technique of preparing as well as dispensing drugs and medicines. It is a health profession that links health sciences with chemical sciences and aims to ensure the safe and effective use of pharmaceutical drugs. The scope of...


Searches Linking to this Trial