A Randomized, Clinical Trial of Vitamin E and Memantine in Alzheimer's Disease (TEAM-AD)

This study has been completed.
Sponsor:
Collaborators:
Forest Laboratories
DSM Nutritional Products, Inc.
Information provided by (Responsible Party):
Department of Veterans Affairs
ClinicalTrials.gov Identifier:
NCT00235716
First received: October 6, 2005
Last updated: July 14, 2014
Last verified: July 2014
Results First Received: December 6, 2013  
Study Type: Interventional
Study Design: Allocation: Randomized;   Endpoint Classification: Efficacy Study;   Intervention Model: Factorial Assignment;   Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor);   Primary Purpose: Treatment
Condition: Alzheimer's Disease
Interventions: Drug: dl-alpha-tocopherol
Drug: Memantine
Drug: Placebo

  Participant Flow
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Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
Recruitment initiated in August, 2007 and concluded in March, 2012. Enrollment took place at 14 VA medical centers.

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
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Reporting Groups
  Description
Vitamin E Alpha-tocopherol (vitamin E in the form of dl-alpha-tocopheryl acetate), 2000 international units (IU) per day, taken as one 1000 IU hard-gelatin, liquid-filled capsules twice a day plus matching memantine placebos.
Memantine (Namenda) Memantine 20 mg per day, titrated over four weeks to a maintenance dosage of 10 mg pills taken twice a day plus matching vitamin E placebo.
Vitamin E + Memantine 2000 IU of Alpha-tocopherol (vitamin E) per day plus 20 mg memantine per day.
Placebo Matching placebo pills for vitamin E and memantine

Participant Flow:   Overall Study
    Vitamin E     Memantine (Namenda)     Vitamin E + Memantine     Placebo  
STARTED     152     155     154     152  
COMPLETED     90     88     89     90  
NOT COMPLETED     62     67     65     62  
Death                 26                 39                 32                 31  
Withdrawal by Subject                 23                 19                 17                 18  
Lost to Follow-up                 12                 7                 14                 10  
Adverse Event                 1                 1                 1                 0  
Physician Decision                 0                 1                 1                 3  



  Baseline Characteristics


  Outcome Measures
  Show All Outcome Measures

1.  Primary:   Alzheimer's Disease Cooperative Study/Activities of Daily Living (ADCS/ADL) Inventory Change From Baseline   [ Time Frame: 6, 12, 18, 24, 30, 36, 42 and 48 months minus baseline ]

2.  Primary:   Mini-Mental State Examination Change From Baseline   [ Time Frame: 6, 12, 18, 24, 30, 36, 42 and 48 months minus baseline ]

3.  Primary:   Alzheimer's Disease Assessment Scale - Cognitive (ADAS-cog) Change From Baseline   [ Time Frame: 6, 12, 18, 24, 30, 36, 42 and 48 months minus baseline ]

4.  Primary:   Neuropsychiatric Inventory Change From Baseline   [ Time Frame: 6, 12, 18, 24, 30, 36, 42 and 48 months minus baseline ]

5.  Primary:   Caregiver Activity Survey Change From Baseline   [ Time Frame: 6, 12, 18, 24, 30, 36, 42 and 48 months minus baseline ]

6.  Secondary:   Dependence Scale: Time to Event Analysis (Increase of of One Dependence Level)   [ Time Frame: Every 6 months to a maximum of 4 years ]

7.  Other Pre-specified:   All-cause Mortality   [ Time Frame: up to 4 years ]


  Serious Adverse Events


  Other Adverse Events


  Limitations and Caveats
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Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
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  More Information
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Certain Agreements:  
Principal Investigators are NOT employed by the organization sponsoring the study.
There is NOT an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.


Results Point of Contact:  
Name/Title: Peter Guarino, PhD, Director WH-CSPCC
Organization: Dept. of Veterans Affairs Cooperative Stduies Program
phone: 203-932-5711 ext 3780
e-mail: peter.guarino@va.gov


Publications of Results:
Other Publications:

Responsible Party: Department of Veterans Affairs
ClinicalTrials.gov Identifier: NCT00235716     History of Changes
Other Study ID Numbers: 546
Study First Received: October 6, 2005
Results First Received: December 6, 2013
Last Updated: July 14, 2014
Health Authority: United States: Federal Government
United States: Food and Drug Administration