Omega-3 Fatty Acids and/or Multi-domain Intervention in the Prevention of Age-related Cognitive Decline (MAPT)

This study is ongoing, but not recruiting participants.
Sponsor:
Information provided by (Responsible Party):
University Hospital, Toulouse
ClinicalTrials.gov Identifier:
NCT00672685
First received: May 2, 2008
Last updated: June 18, 2013
Last verified: June 2013

May 2, 2008
June 18, 2013
May 2008
February 2014   (final data collection date for primary outcome measure)
Changes in memory function scores at 36 months determined by Gröber & Buscke test [ Time Frame: Baseline, 6, 12, 24, 36 months ] [ Designated as safety issue: No ]
Same as current
Complete list of historical versions of study NCT00672685 on ClinicalTrials.gov Archive Site
Changes in other cognitive functions. Changes in functional capacities. To study the long-term safety and tolerability of V0137 CA treatment. To study compliance and adhesion to the "multi-domain" intervention program. [ Time Frame: Baseline, 6, 12, 24, 36 months ] [ Designated as safety issue: Yes ]
Same as current
Not Provided
Not Provided
 
Omega-3 Fatty Acids and/or Multi-domain Intervention in the Prevention of Age-related Cognitive Decline
Assessment of the Efficacy of Omega-3 Fatty Acids Supplementation, Multi-domain Intervention or Their Combination on the Change of Cognitive Functions in Frail Elderly Subjects

Epidemiological and fundamental research carried out in recent years has highlighted the role played by omega-3 fatty acids in the process of cognitive decline that accompanies advancing age and Alzheimer's disease. In addition, it has been recognized for some years, following several convergent studies on the prevention of cognitive decline, that nutrition, physical exercise, cognitive training and social activities play a significant role in the maintenance of cognitive faculties. At present, there are a number of epidemiological arguments in favour of a protective role of each of these factors taken in isolation. It can be postulated that a multi-domain intervention may potentiate the protective role of omega-3 fatty acids.

The main objective of this study is to assess the efficacy of isolated supplementation with omega-3 fatty acid, an isolated multi-domain intervention (nutrition, physical exercise, cognitive stimulation, social activities), or their combination on the change of cognitive functions in frail elderly subjects aged of 70 years and older over 3 years.

Secondary objectives:

  • To assess the efficacy of each treatment strategy on the change of functional capacities and the prevention of dependency,
  • To study the long-term safety and tolerability of V0137,
  • To study compliance and adhesion to the multi-domain intervention programme,

    • To assess the impact of an intervention program on brain metabolism in FDG PET (MAPT-NI : : impact of multidomain intervention on brain metabolism (FDG-PET))
    • To evaluate the impact of preventive strategies (Omega-3 treatment and multidomain intervention ) of MAPT study on brain atrophy (MRI),
    • To evaluate the presence and density of ß-amyloid in MAPT subjects using AV45 PET scans (MAPT AV45),
    • To determine if sleep disorders at early stage of Alzheimer 's disease could be predictive of cognitive decline and used as diagnosis tools (Mapt SLEEP)

This is a multi-centre , randomised, placebo-controlled study in parallel groups in 1680 frail elderly subjects over the age of 70 years, living at home, monitored for a period of 3 years. The subjects will be randomised into one of the following 4 groups:

  • Omega-3 group: 800 mg/day of docosahexaenoic acid (V0137CA nutritional supplement)
  • Omega-3 + multi-domain intervention group: 800 mg/day of docosahexaenoic acid ( V0137CA)
  • Placebo + multi-domain intervention group
  • Placebo group The multi-domain intervention includes training / information sessions in the following 4 areas: nutrition, physical activity, cognitive training and social activities, and preventive consultations.

Selected subjects will present at least one of the following frailty criteria:

  • Loss of one Instrumental Activity Daily Living (IADL)
  • Subjective memory complaints to a physician
  • Slow walking speed. Follow-up visits will occur every six months for 3 years for both dispensing of supplement and compliance (months 6, 12, 18, 24, 30 and 36) and neuropsychological and functional assessment (months 6, 12, 24, 36).
Interventional
Not Provided
Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Investigator, Outcomes Assessor)
Primary Purpose: Prevention
Frail Elderly Subjects
  • Dietary Supplement: omega-3
    V0137 CA containing 400 mg docosahexaenoic acid (DHA) - 2 soft capsules once a day, i.e. 800 mg DHA per day for 36 months
    Other Name: Omega-3 fatty acids
  • Behavioral: multi-domain intervention
    multi-domain intervention = Nutrition, physical exercise, cognitive training and social activities, and preventive consultations
  • Drug: Placebo
    OMEGA-3 placebo
  • Experimental: 1
    Omega-3 group without any intervention
    Intervention: Dietary Supplement: omega-3
  • Experimental: 2
    Omega-3 combined group (Omega-3 + multi-domain intervention)
    Interventions:
    • Dietary Supplement: omega-3
    • Behavioral: multi-domain intervention
  • Experimental: 3
    Placebo combined group (Placebo + multi-domain intervention)
    Interventions:
    • Behavioral: multi-domain intervention
    • Drug: Placebo
  • Placebo Comparator: 4
    Placebo group without any intervention
    Intervention: Drug: Placebo
Gillette-Guyonnet S, Andrieu S, Dantoine T, Dartigues JF, Touchon J, Vellas B; MAPT Study Group. Commentary on "a roadmap for the prevention of dementia II. Leon Thal Symposium 2008." The Multidomain Alzheimer Preventive Trial (MAPT): a new approach to the prevention of Alzheimer's disease. Alzheimers Dement. 2009 Mar;5(2):114-21.

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Active, not recruiting
1680
February 2014
February 2014   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • subjects of both sex, aged of 70 years or over,
  • subjects with at least one of the following frailty criteria: a subjective memory complaint, expressed to their attending physician, an inability to perform one of instrumental activities of daily living, a slow walking with a speed ≤ 0.77 m/s, i.e 5 seconds to walk 4 meters.
  • subjects with an MMSE score of greater than or equal to 24,
  • subjects capable of understanding the protocol, complying with its requirements and attending the study visits,
  • subjects with sufficient availability to take part in the multi-domain intervention programme,
  • subjects who, in the opinion of the investigator, are liable to comply with the treatment during the study;
  • subjects capable of giving their written informed consent
  • Covered by a health insurance system

Exclusion Criteria:

  • Criteria related to diseases:

    • known presence of dementia or Alzheimer's disease (DSM IV criteria),
    • deterioration in global cognitive function (MMSE < 24),
    • dependency for basic activities of daily living (ADL<6),
    • presence of serious diseases, which could be life-threatening in the short term,
    • history or presence of any disease that could compromise the subject's participation in the multi-domain intervention sessions,
  • Criteria related to treatments:

    o taking of supplements containing omega-3 (apart from food) within the past 6 months and/or taking omega-3 at inclusion.

  • Criteria related to subjects:

    • visual or hearing impairments incompatible with performance and/or interpretation of the neuropsychological tests,
    • history or presence of any previous pathologies that could, in the opinion of the investigator, interfere with the results of the study or expose the subject to an additional risk,
    • subjects deprived of their freedom by administrative or judicial decision, or under guardianship or admitted to a healthcare or social institution,
    • participation in another clinical study in the previous month or participation scheduled during the study.
Both
70 Years and older
No
Contact information is only displayed when the study is recruiting subjects
France,   Monaco
 
NCT00672685
07 116 03
No
University Hospital, Toulouse
University Hospital, Toulouse
Not Provided
Principal Investigator: Bruno Vellas, MD-PhD Toulouse University Hospital Centre
University Hospital, Toulouse
June 2013

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP