NCT00056329

Brief Summary

The goal of this study is to determine the safety and efficacy of the administration of vitamin E, which has been shown to delay the progression of Alzheimer's disease, in slowing the rate of cognitive/functional decline in older persons with Down syndrome.

Trial Health

47
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
350

participants targeted

Target at P50-P75 for phase_3

Timeline
Completed

Started Apr 2002

Longer than P75 for phase_3

Geographic Reach
4 countries

22 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

April 1, 2002

Completed
11 months until next milestone

First Submitted

Initial submission to the registry

March 10, 2003

Completed
2 days until next milestone

First Posted

Study publicly available on registry

March 12, 2003

Completed
9.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2012

Completed
Last Updated

May 4, 2012

Status Verified

May 1, 2012

Enrollment Period

10.1 years

First QC Date

March 10, 2003

Last Update Submit

May 2, 2012

Conditions

Keywords

Aging PersonsDown SyndromeVitamin EAlzheimer disease

Outcome Measures

Primary Outcomes (1)

  • Brief Praxis Test, measuring cognitive functions expressed as performances of simple, short, sequences of voluntary movements

    Screening, Baseline, every 6 months for 36 months

Secondary Outcomes (1)

  • Fuld Object Memory Test (Modified), New Dot Test, Orientation Test, Vocabulary Test, Behavior & Function Down Syndrome Rating Scale, Clinical Global Impression of Change (CGI-C)

    Screening, Baseline, and every 6 months for 36 months

Study Arms (2)

1

EXPERIMENTAL

vitamin E plus multivitamin

Drug: Vitamin EDrug: multivitamin

2

PLACEBO COMPARATOR

placebo with multivitamin

Drug: multivitaminDrug: Placebo

Interventions

1,000 international units twice daily for three years

Also known as: tocopherol
1

once daily for three years

12

Placebo twice daily for three years

2

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Presence of clinically determined Down syndrome (karyotypes optional).
  • Medically stable.
  • Medications stable over 3 months.
  • Appropriately signed and witnessed consent form.
  • Involvement/cooperation of informant/caregiver.

You may not qualify if:

  • Medical/neurological condition (other than Alzheimer's disease) associated with dementia.
  • Brief Praxis Test score \<20.
  • Modified Hachinski score \>4.
  • Major depression within 3 months.
  • History of any disorder of blood coagulation (inherited or acquired).
  • Current use of anti-coagulants.
  • Use of experimental medications within 3 months.
  • Regular use of vitamin E greater than 50 units per day during the previous 6 months.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (22)

University of Connecticut Health Center

Farmington, Connecticut, 06030, United States

Location

Roskamp Institute Memory Clinic

Tampa, Florida, 33617, United States

Location

Institute for the Study of Disadvantage and Disability

Atlanta, Georgia, 30342, United States

Location

May South, Inc.

Atlanta, Georgia, 30342, United States

Location

University of Illinois at Chicago

Chicago, Illinois, 60608, United States

Location

Southern Illinois University School of Medicine

Springfield, Illinois, 62794-9642, United States

Location

Third Age, Inc.

Lexington, Kentucky, 40517, United States

Location

McLean Hospital

Belmont, Massachusetts, 02478, United States

Location

Clinical Research Center of New Jersey

Voorhees Township, New Jersey, 08043, United States

Location

University at Albany, SUNY

Albany, New York, 12222, United States

Location

Nathan Kline Institute

Orangeburg, New York, 10962, United States

Location

George Jervis Clinic

Staten Island, New York, 10314, United States

Location

Westchester Institute for Human Development

Valhalla, New York, 10595, United States

Location

University Memory and Aging Center, Case Western Reserve University

Cleveland, Ohio, 44120, United States

Location

Centre for Developmental Disabilities Studies

Ryde, New South Wales, 1680, Australia

Location

Down Syndrome Research Foundation

Port Coquitlam, British Columbia, V3C 2B2, Canada

Location

Surrey Place Centre

Toronto, Ontario, M5S 2C2, Canada

Location

Saskatoon City Hospital

Saskatoon, Saskatchewan, S7K 0M7, Canada

Location

University of Cambridge

Cambridge, England, CB2 2AH, United Kingdom

Location

Greenfields Monyhull Hospital

Kings Norton, Birmingham, England, B30 3QQ, United Kingdom

Location

Kings College: London

London, England, SE5 8AF, United Kingdom

Location

Mercer Institute for Research on Ageing, St. James Hospital

Dublin, Ireland, 8, United Kingdom

Location

Related Publications (5)

  • Sano M, Ernesto C, Thomas RG, Klauber MR, Schafer K, Grundman M, Woodbury P, Growdon J, Cotman CW, Pfeiffer E, Schneider LS, Thal LJ. A controlled trial of selegiline, alpha-tocopherol, or both as treatment for Alzheimer's disease. The Alzheimer's Disease Cooperative Study. N Engl J Med. 1997 Apr 24;336(17):1216-22. doi: 10.1056/NEJM199704243361704.

    PMID: 9110909BACKGROUND
  • Aisen PS, Davis KL. The search for disease-modifying treatment for Alzheimer's disease. Neurology. 1997 May;48(5 Suppl 6):S35-41. doi: 10.1212/wnl.48.5_suppl_6.35s.

    PMID: 9153159BACKGROUND
  • Aylward EH, Burt DB, Thorpe LU, Lai F, Dalton A. Diagnosis of dementia in individuals with intellectual disability. J Intellect Disabil Res. 1997 Apr;41 ( Pt 2):152-64. doi: 10.1111/j.1365-2788.1997.tb00692.x.

    PMID: 9161927BACKGROUND
  • Dalton, AJ, Mehta, PD, Fedor, BL, Patti, PJ: Cognitive changes in memory precede those in praxis in aging persons with Down syndrome. Journal of Intellectual and Developmental Disability 24(2):169-187,1999.

    BACKGROUND
  • Sano M, Aisen PS, Dalton AJ, Andrews HF, Tsai W-Y, and the International Down Syndrome Alzheimer Disease Consortium. Assessment of aging individuals with Down syndrome in clinical trials: results of baseline measures. Journal of Policy and Practice in Intellectual Disabilities. 2005 2(2):126-138.

    RESULT

MeSH Terms

Conditions

Down SyndromeAlzheimer Disease

Interventions

Vitamin ETocopherolsGeritol

Condition Hierarchy (Ancestors)

Intellectual DisabilityNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesAbnormalities, MultipleCongenital AbnormalitiesCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesChromosome DisordersGenetic Diseases, InbornDementiaBrain DiseasesCentral Nervous System DiseasesTauopathiesNeurodegenerative DiseasesNeurocognitive DisordersMental Disorders

Intervention Hierarchy (Ancestors)

BenzopyransPyransHeterocyclic Compounds, 1-RingHeterocyclic CompoundsHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-Ring

Study Officials

  • Arthur J Dalton, PhD

    New York State Institute for Basic Research in Developmental Disabilities

    PRINCIPAL INVESTIGATOR
  • Paul S Aisen, MD

    Georgetown University

    STUDY DIRECTOR
  • Mary C Sano, PhD

    Icahn School of Medicine at Mount Sinai

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Deputy Director

Study Record Dates

First Submitted

March 10, 2003

First Posted

March 12, 2003

Study Start

April 1, 2002

Primary Completion

May 1, 2012

Study Completion

May 1, 2012

Last Updated

May 4, 2012

Record last verified: 2012-05

Locations