Safety and Efficacy of MEM 3454 Versus Placebo in Patients With Mild to Moderate Alzheimer's Disease

May 5, 2008 updated by: Memory Pharmaceuticals

A Randomized, Double-Blind, Placebo Controlled, Multi-Center Study of the Pharmacodynamics/Efficacy, Safety, Tolerability, and Pharmacokinetics of 3 Fixed Dosages of MEM 3454 (5 mg, 15 mg, and 50 mg) in Patients With Mild to Moderate Alzheimer's Disease

The purpose of this study is to determine in an 8-week treatment study if MEM 3454 is a safe and effective treatment for patients with mild to moderate Alzheimer's disease.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Alzheimer's disease is the leading cause of dementia and one of the most common diseases of the aging population. It is a chronic brain disease that involves gradual memory loss, decline in the ability to perform routine tasks, disorientation, difficulty in learning, loss of language skills, impairment of judgment, and personality changes in affected individuals. The neurodegenerative nature of the disease eventually leads to the failure of other organ systems and death.

A consistent and marked change in the brains of patients with AD is degeneration of the cholinergic innervation in the hippocampus and cerebral cortex areas. The activity of choline acetyl transferase (ChAT) is significantly reduced in these brain regions, and a linear correlation is seen between the reduction in cortical ChAT activity and the progress of dementia, indicating a progressive loss of cholinergic function.

Receptor selective nicotinic alpha-7 receptor agonists can modulate acetylcholine in selective brain regions and contribute to symptomatic treatment of AD. MEM 3454 is a novel nicotinic alpha-7 receptor selective partial agonist having serotonin type 3 (5-HT3) receptor antagonist properties.

Study Type

Interventional

Enrollment (Anticipated)

80

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Arizona
      • Phoenix, Arizona, United States, 85013
    • California
      • Glendale, California, United States, 91206
    • Georgia
      • Atlanta, Georgia, United States, 30308
    • Kansas
      • Wichita, Kansas, United States, 67207
      • Wichita, Kansas, United States, 67211
    • New Jersey
      • Willingboro, New Jersey, United States, 08046
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19139

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

50 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Diagnosis of probable or possible Alzheimer's disease
  • MMSE score between 16 and 26 points
  • Modified Hachinski Ischemia Score of less than or equal to 4
  • Capable of performing cognitive tests and other procedures specified in protocol

Exclusion Criteria:

  • Head trauma associated with cognitive impairment
  • Evidence of significant neurological disease other than AD, such as Parkinson's disease, multi-infarct dementia, Huntington's disease, normal pressure hydrocephalus, CNS tumor, progressive supranuclear palsy, seizure disorder, etc.
  • Received AChE inhibitor therapy (e.g., rivastigmine, tacrine or galantamine) or NDMA-receptor antagonist, memantine, within 30 days or donepezil within 40 days of randomization
  • Received any investigational drug within 2 months of randomization or treatment with other nicotinic receptor agonists within 3 months of screening

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Memory Pharmaceuticals

Investigators

  • Study Director: Stephen R Murray, MD, PhD, Memory Pharmaceuticals Corp

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

February 1, 2007

Primary Completion (Actual)

October 1, 2007

Study Completion (Actual)

October 1, 2007

Study Registration Dates

First Submitted

March 30, 2007

First Submitted That Met QC Criteria

March 30, 2007

First Posted (Estimate)

April 2, 2007

Study Record Updates

Last Update Posted (Estimate)

May 6, 2008

Last Update Submitted That Met QC Criteria

May 5, 2008

Last Verified

May 1, 2008

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • MEM 3454-003

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Subscribe