- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01877967
Investigating the Effect of Dietary Supplement VSL#3 on Cognition and Mood in Healthy Older Adults
A Randomised Double-blind Placebo-controlled Trial Investigating the Effect of Dietary Supplement VSL#3 on Memory, Attention, Executive Function and Mood in Healthy Older Adults.
Study Overview
Status
Intervention / Treatment
Detailed Description
This research aims to investigate the effect of dietary supplement VSL#3 on memory, attention, executive function and mood in healthy older adults.
The study will be a randomised double-blind placebo-controlled design and eighty participants will be recruited to take part. Forty participants will be randomly allocated to the food supplement and 40 to placebo. As the sample is initially self-selecting where individuals volunteer to take part, a minimisation procedure will be used to randomise group allocation (Altman & Bland, 2005), with volunteers stratified by gender. Neither the participant nor the research assistant supplying the supplement will know which preparation is administered, thus ensuring double-blind administration.
Participants will be asked to take the food supplement daily for 12 weeks and the pre- and post- intervention data will be collected immediately before and after this time period.
Both pre- and post-intervention data will be collected using validated neuropsychological measures, cognitive measures, EEG and self-report questionnaires. Blood sampling will be conducted pre- and post-intervention by a Research Assistant trained in phlebotomy. Analysis will be carried out on each of the measures using a two-way ANCOVA, using the pre-treatment score as covariate.
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Co. Dublin
-
Dublin, Co. Dublin, Ireland, 0000
- Institute of Neuroscience, Trinity College, Dublin
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Aged between 65 and 75
- MMSE score > 23
- Willingness to give informed consent
- Commitment to take the VSL#3 supplement daily for 12 weeks
- Alcohol consumption less than 21 units per week (men), 14 units per week (women)
Exclusion Criteria:
- Current psychoactive medication
- Significant active medical conditions
- History of major psychiatric or neurological condition
- Smoker
- History of epilepsy
- History of traumatic brain injury
- History of immunodeficiency
- Taking immunosuppressants or corticosteroids
Study Plan
How is the study designed?
Design Details
- Primary Purpose: PREVENTION
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: TRIPLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: Intervention
This group will intake the recommended daily amount of the food supplement VSL#3 (two sachets of the supplement in powder form) every day for twelve weeks.
The two sachets will either be taken together or one in the morning and one in the evening.
|
The intervention group will be asked to ingest two sachets (2x4.4g) of the food supplement (VSL#3) each day for 12 weeks, either both at the same time, or one in the morning and one in the evening.
This food supplement is in powder form and can be ingested with either cold food or any non-carbonated cold drink.
The control group will be given a placebo, although as it is a double-blind intervention, will not know it is a placebo.
They will similarly to the intervention group be asked to take two sachets (2x4.4g) of a powder rach day for 12 weeks, either both at the same time, or one in the morning and one in the evening.
|
PLACEBO_COMPARATOR: Placebo
This group will intake two sachets (2x4.4g) of a placebo each day for 12 weeks.
The placebo is in the same powdered form as the food supplement taken by the intervention group.
The two sachets will either be taken together or one in the morning and one in the evening.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in cognition
Time Frame: Pre and Post the 12 week Intervention
|
Measures used to assess cognition: Mini Mental State Exam National Adult Reading Test Free and Cued Selective Reminding Test (FCSRT) Category Fluency Task (Animal Fluency) Colour Trials test 1 & 2 Sustained Attention Response Task Choice Reaction Time Task Prospective Memory Task Self-Rated Memory Electrophysiological Measures (EEG spectral power - alpha range 8-14Hz) |
Pre and Post the 12 week Intervention
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in Mood
Time Frame: Pre and Post the 12 week Intervention
|
Measures used to assess changes in mood: Centre for Epidemiologic Studies Depression Scale (CES-D) Hospital Anxiety and Depression Scale - Anxiety Scale (HADS-A) |
Pre and Post the 12 week Intervention
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in levels of elements in blood
Time Frame: Pre and Post the 12 week Intervention
|
Blood samples will be taken by a Research Assistant trained in Phlebotomy and tested for the presence of homocysteine, folate and vitamin B12 levels, PCR, glucose, insulin, ceramide and metabolomics
|
Pre and Post the 12 week Intervention
|
Collaborators and Investigators
Collaborators
Investigators
- Principal Investigator: Brian Lawlor, University of Dublin, Trinity College
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Primary Completion (ACTUAL)
Study Completion (ANTICIPATED)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
Study Record Updates
Last Update Posted (ESTIMATE)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- 8AA.N04022
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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