This trial is active, not recruiting.

Conditions alteration of cognitive function, disturbance in affect (finding)
Treatments vsl#3, placebo
Sponsor University of Dublin, Trinity College
Collaborator ACTIAL Farmaceutica Lda
Start date May 2013
End date April 2015
Trial size 80 participants
Trial identifier NCT01877967, 8AA.N04022


This research aims to determine whether a 12 week daily dose of VSL#3 has any measurable effects on memory, attention, executive function or self-reported mood and anxiety in healthy older adults.

United States No locations recruiting
Other countries No locations recruiting

Study Design

Allocation randomized
Endpoint classification efficacy study
Intervention model parallel assignment
Masking double blind (subject, investigator, outcomes assessor)
Primary purpose prevention
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)
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.

Primary Outcomes

Changes in cognition
time frame: Pre and Post the 12 week Intervention

Secondary Outcomes

Changes in Mood
time frame: Pre and Post the 12 week Intervention

Eligibility Criteria

Male or female participants from 65 years up to 75 years old.

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

Additional Information

Official title 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.
Principal investigator Brian Lawlor
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.
Trial information was received from ClinicalTrials.gov and was last updated in May 2015.
Information provided to ClinicalTrials.gov by University of Dublin, Trinity College.