DIetary Supplements, Executive funcTions and Vitamin D (DIET-D)

NCT ID: NCT01708005

Last Updated: 2012-10-16

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

UNKNOWN

Clinical Phase

PHASE2/PHASE3

Total Enrollment

160 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-11-30

Study Completion Date

2014-11-30

Brief Summary

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The purpose of this study is to compare the effect after 12 weeks of the oral intake of Lecitone®Se + 200UI/day of D3 vitamin with the effect of a placebo on changes in cognitive performance in Trial Making Test score part B (this test evaluate executive functions of mental flexibility) in older adults with Mild Cognitive Impairment (MCI).

Detailed Description

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Current treatments for Alzheimer's disease (AD) are symptomatic and can only temporarily slow down AD without altering its natural evolution. The development of new therapies has primarily focused on preventing the progression of AD. This therapeutic strategy involves being interested in patients with an early stage of AD such as a mild cognitive impairment (MCI). We hypothesized that the combination of Lecitone®Se with 200 IU/day of vitamin D can slow or even improve cognitive decline, particularly executive functions.

The primary objective of this trial is to compare the effect after 12 weeks of the oral intake of Lecitone®Se-Vitamin D3 with the effect of a placebo on changes in performance obtained in the TMT B in the older adults with a MCI.

The secondary objectives of the study are as follows:

* To compare the effect after 12 weeks of the oral intake of Lecitone®Se-Vitamin D3 with the effect of a placebo on changes in executive performance in patients with a MCI.
* To compare the effect after 12 weeks of the oral intake of Lecitone®Se-Vitamin D3 with the effect of a placebo on changes in variability of stride time in patients with a MCI.
* To compare the effect after 24 weeks of the oral intake of Lecitone®Se-Vitamin D3 with the effect of a placebo and a delay phase of supplementation on changes in executive performance in patients with a MCI.
* To compare the effect after 24 weeks of the oral intake of Lecitone®Se-Vitamin D3 with the effect of a placebo and a delay phase of supplementation on changes in variability of stride time in patients with a MCI.
* To determine the compliance and tolerance of the oral intake of Lecitone®Se-Vitamin D3 in patients with a MCI.

Conditions

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Mild Cognitive Impairment

Keywords

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Mild Cognitive Impairment Vitamin D Cholecalciferol Lecitone®Se-Vitamin D3

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Intervention

80 participants start the oral intake of Lecitone®Se-Vitamin D3 the day after inclusion and during 24 weeks

Group Type ACTIVE_COMPARATOR

Lecitone®Se-Vitamin D3

Intervention Type DRUG

Lecitone®Se-Vitamin D3 is a dietary supplement combining the active ingredients in Lecitone®Se and 100 IU of vitamin D3. This dietary supplement comes in capsule form.

Participants take 2 capsules of Lecitone®Se -Vitamin D3 per day. The dose of vitamin D supplementation will not be adjusted except in case of an adverse event such as hypercalcemia. In this case, vitamin D supplementation is stopped and the participant is released prematurely from the study.

Placebo

80 participants in this arm start the oral intake of placebo the day after inclusion and during 12 weeks.

Then, they start the oral intake of Lecitone®Se-Vitamin D3 12 weeks after inclusion until the 24th week.

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

The comparator is represented by placebo capsules of identical appearance (same size, same color and same smell) that Lecitone®Se-Vitamin D3 capsules.

Interventions

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Lecitone®Se-Vitamin D3

Lecitone®Se-Vitamin D3 is a dietary supplement combining the active ingredients in Lecitone®Se and 100 IU of vitamin D3. This dietary supplement comes in capsule form.

Participants take 2 capsules of Lecitone®Se -Vitamin D3 per day. The dose of vitamin D supplementation will not be adjusted except in case of an adverse event such as hypercalcemia. In this case, vitamin D supplementation is stopped and the participant is released prematurely from the study.

Intervention Type DRUG

Placebo

The comparator is represented by placebo capsules of identical appearance (same size, same color and same smell) that Lecitone®Se-Vitamin D3 capsules.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Age ≥ 60 years
* Memory complaints
* No dementia (DSM-IV, NINCDS-ADRDA negative)
* No depression (Geriatric Depression score ≤ 5/15)
* Ability to walk a distance of 15 meters unaided
* Diagnosis of MCI
* To have hypovitaminosis D (i.e. serum 25-hydroxyvitamin D \[25OHD\]concentration ≤ 30ng/mL)
* To have no hypercalcemia (defined as serum calcium concentration ≥ 2,65mmol/L)
* To have given and signed an informed consent to participate in the trial
* To be affiliated to French Social Security

Exclusion Criteria

* Others cognitive disorders (untreated thyroid dysfunction, chronic ongoing ethylism, history of syphilis, stroke, severe depressive symptomatology (Geriatric Depression score \> 5/15), existence of dementia according to DSM-IV and NINCDS-ADRDA criteria at the time of inclusion)
* Vitamin D supplementation during inclusion
* Contraindications to vitamin D
* Unstable medical condition
* Enrollment in another simultaneous clinical trial
* Civil defense measures underway
Minimum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Nantes University Hospital

OTHER

Sponsor Role collaborator

NUTRISANTE

UNKNOWN

Sponsor Role collaborator

University Hospital, Angers

OTHER_GOV

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Olivier Beauchet, MD,PhD

Role: PRINCIPAL_INVESTIGATOR

Angers University Hospital

Locations

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University Hospital

Angers, , France

Site Status

Countries

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France

Other Identifiers

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2012-A00453-40

Identifier Type: -

Identifier Source: org_study_id