Safety and Efficacy of MEM 1003 Versus Placebo in Patients With Mild to Moderate Alzheimer's Disease

NCT ID: NCT00257673

Last Updated: 2008-05-06

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

183 participants

Study Classification

INTERVENTIONAL

Study Start Date

2005-11-30

Study Completion Date

2007-10-31

Brief Summary

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The purpose of this study is to determine in a 12-week treatment study if MEM 1003 is a safe and effective treatment for patients with mild to moderate Alzheimer's disease.

Detailed Description

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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.

Perturbations in calcium homeostasis in the central nervous system, such as those associated with Alzheimer's disease and aging as well as stroke and head trauma can result in an increase in intracellular levels of calcium (Ca2+). Increased levels of Ca2+ may lead to cellular dysregulation and cell death. The role of calcium in these neurodegenerative processes led to the hypothesis that controlling calcium levels may be beneficial, particularly where progressive neuronal damage results in cognitive dysfunction and memory loss.

MEM 1003 is the (+)-enantiomer of a dihydropyridine that has been optimized for central nervous system activity. It inhibits L-type Ca2+ channels and within the anticipated human dosing range has more benign cardiovascular effects than other DHP L-Type calcium channel modulators.

Conditions

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Alzheimer's Disease

Keywords

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Cognition Alzheimer's Cognitive impairment

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

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A

Active 30 mg MEM 1003

Group Type EXPERIMENTAL

MEM 1003

Intervention Type DRUG

30 mg twice a day

B

90 mg MEM 1003

Group Type EXPERIMENTAL

MEM 1003

Intervention Type DRUG

90 mg MEM 1003 twice a day

C

Placebo for MEM 1003

Group Type PLACEBO_COMPARATOR

Placebo for MEM 1003

Intervention Type DRUG

Placebo twice a day

Interventions

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MEM 1003

30 mg twice a day

Intervention Type DRUG

MEM 1003

90 mg MEM 1003 twice a day

Intervention Type DRUG

Placebo for MEM 1003

Placebo twice a day

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* standardized MMSE Score of 10 to 24 points
* diagnosis of probable Alzheimer's disease
* magnetic resonance imaging or computed tomography examination compatible with AD
* modified Hachinski Ischemia Score of less than or equal to 4
* currently receiving no AD therapy or currently receiving donepezil, rivastigmine, or galantamine

Exclusion Criteria

* head injury associated with cognitive impairment
* history of vascular dementia stroke, transient cerebral ischemic episodes, major depression, major psychotic disorder, or symptomatic postural hypotension
* treatment for Alzheimer's disease other than donepezil, rivastigmine, or galantamine; tacrine is not permitted in the last 30 days or memantine in the last 90 days
* treatment with calcium channel blockers or any investigational medications within the prior 30 days
Minimum Eligible Age

50 Years

Maximum Eligible Age

90 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Memory Pharmaceuticals

INDUSTRY

Sponsor Role lead

Responsible Party

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Memory Pharmaceuticals Corp.

Principal Investigators

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Stephen Murray, MD, PhD

Role: STUDY_DIRECTOR

Memory Pharmaceutical Corp.

Locations

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Northport, Alabama, United States

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Mesa, Arizona, United States

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Phoenix, Arizona, United States

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Sun City, Arizona, United States

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El Centro, California, United States

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Riverside, California, United States

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San Francisco, California, United States

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Torrence, California, United States

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Hamden, Connecticut, United States

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Washington D.C., District of Columbia, United States

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Brooksville, Florida, United States

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Chiefland, Florida, United States

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Coral Springs, Florida, United States

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Deerfield Beach, Florida, United States

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Delray Beach, Florida, United States

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Hallandale, Florida, United States

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Hialeah, Florida, United States

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Miami, Florida, United States

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Miami, Florida, United States

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Miami, Florida, United States

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Plantation, Florida, United States

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Port Charlotte, Florida, United States

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Sarasota, Florida, United States

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St. Petersburg, Florida, United States

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Sunrise, Florida, United States

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Tampa, Florida, United States

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Tampa, Florida, United States

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West Palm Beach, Florida, United States

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Atlanta, Georgia, United States

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Decatur, Georgia, United States

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Chicago, Illinois, United States

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New Orleans, Louisiana, United States

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Shreveport, Louisiana, United States

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Towson, Maryland, United States

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Fall River, Massachusetts, United States

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Saint Loius, Missouri, United States

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Berlin, New Jersey, United States

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Long Branch, New Jersey, United States

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Princeton, New Jersey, United States

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Ridgewood, New Jersey, United States

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Toms River, New Jersey, United States

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Albany, New York, United States

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Staten Island, New York, United States

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Morganton, North Carolina, United States

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Portland, Oregon, United States

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Colmar, Pennsylvania, United States

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Media, Pennsylvania, United States

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Philadelphia, Pennsylvania, United States

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Spartanburg, South Carolina, United States

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Johnson City, Tennessee, United States

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Bedford, Texas, United States

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Bulverde, Texas, United States

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San Antonio, Texas, United States

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Midvale, Utah, United States

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Bennington, Vermont, United States

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Norfolk, Virginia, United States

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Spokane, Washington, United States

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Countries

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United States

Other Identifiers

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MEM 1003-004

Identifier Type: -

Identifier Source: org_study_id

NCT00605501

Identifier Type: -

Identifier Source: nct_alias