COVID-19 studies are our top priority. For all other trials, there is a 4-week delay in processing a trial submitted/resubmitted to the ANZCTR and additional delays for updates of registered trials. We appreciate your patience.

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been endorsed by the ANZCTR. Before participating in a study, talk to your health care provider and refer to this information for consumers
Trial registered on ANZCTR

Registration number
Ethics application status
Date submitted
Date registered
Date last updated
Date data sharing statement initially provided
Date results information initially provided
Type of registration
Retrospectively registered

Titles & IDs
Public title
Herbs, Brain Imaging and Memory study.
Scientific title
Acute neurocognitive effects of Bacopa, Ginseng and Whole Coffee Fruit in healthy adults
Secondary ID [1] 299416 0
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Cognitive performance 314593 0
Condition category
Condition code
Mental Health 312931 312931 0 0
Studies of normal psychology, cognitive function and behaviour
Alternative and Complementary Medicine 313156 313156 0 0
Herbal remedies

Study type
Description of intervention(s) / exposure
An acute (same day), double-blinded, placebo-controlled between conditions (active and placebo supplementation) intervention, where participants consume a single, 2 tablet dose (500mg) in a 2 hr period of either the active (herbal combination of Bacopa 300mg, Ginseng 100mg, and Coffee fruit extract 100mg) or placebo (microcrystalline cellulose 581mg).
Participants complete a series of thinking and memory tasks pre and post consumption.
Tolerance to tablet consumption was monitored through direct observation by study personnel and through a specific tolerance question, " how are you feeling now?".
Intervention code [1] 315665 0
Treatment: Other
Comparator / control treatment
Placebo - microcrystalline cellulose
Control group

Primary outcome [1] 321555 0
As a composite primary outcome, a cognitive test battery included tasks of working memory ( N-back) and attention ( choice reaction time and Stroop). Overall, response time and accuracy scores were used to provide an estimate of better or worse performance in relation to speed of response.
Timepoint [1] 321555 0
Single, same day testing in which participants complete two assessments within a 2 hour timeframe: a baseline (pre-consumption) assessment and 1 hour post-consumption assessment.
Secondary outcome [1] 375348 0
Brain activation through fNIR ( functional near-infrared spectroscopy) measure during task performance.
Timepoint [1] 375348 0
Single, same day testing in which participants complete two assessments within a 2 hour timeframe: a baseline (pre-consumption) assessment and 1 hour post-consumption assessment.

Key inclusion criteria
Healthy adults aged 18- 60 years, without major medical conditions, such as diabetes,
cardiovascular disease, acute or terminal illness; BMI below 35, moderate alcohol consumption, no medication changes for the management of
health conditions within last 6 weeks, no current or recent history of taking medications for mood disorders and/or previous history of neurological conditions as these conditions have been shown to be related to impaired cognitive performance.
Minimum age
18 Years
Maximum age
60 Years
Both males and females
Can healthy volunteers participate?
Key exclusion criteria
Pre-existing medical conditions, including diabetes, cardiovascular disease, medication changes for the management of health conditions within last 6 weeks, current or recent history of taking medications for mood disorders and/or previous history of neurological conditions.

Study design
Purpose of the study
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Yes - supplements were in numbered containers and allocation involved contacting the holder of the allocation schedule who was "off-site".
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Simple randomisation using a randomisation schedule created by computer software (i.e. computerised sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?
The people receiving the treatment/s
The people administering the treatment/s
The people assessing the outcomes
The people analysing the results/data
Intervention assignment
Other design features
Not Applicable
Type of endpoint(s)
Statistical methods / analysis
Based on sample size calculation from previous acute studies assessing cognitive changes and fNIRS changes, a minimum of 40 participants (20/group) is required. Change from baseline measures with ANOVA used to examine between group differences.

Recruitment status
Date of first participant enrolment
Date of last participant enrolment
Date of last data collection
Sample size
Accrual to date
Recruitment in Australia
Recruitment state(s)

Funding & Sponsors
Funding source category [1] 303923 0
Commercial sector/Industry
Name [1] 303923 0
USANA Health Sciences Inc
Address [1] 303923 0
3838 West Parkway Boulevard
Salt Lake City, UT 84120
Country [1] 303923 0
United States of America
Primary sponsor type
Central Queensland University
160 Ann Street Brisbane, QLD Australia 4000
Secondary sponsor category [1] 304074 0
Name [1] 304074 0
Address [1] 304074 0
Country [1] 304074 0
Other collaborator category [1] 280980 0
Name [1] 280980 0
Nanyang Technological University
Address [1] 280980 0
50 Nanyang Avenue, Singapore 639798
Country [1] 280980 0

Ethics approval
Ethics application status
Ethics committee name [1] 304424 0
Human Research Ethics Committee Central Queensland University
Ethics committee address [1] 304424 0
554-700 Yaamba Rd, Norman Gardens QLD 4701
Ethics committee country [1] 304424 0
Date submitted for ethics approval [1] 304424 0
Approval date [1] 304424 0
Ethics approval number [1] 304424 0

Brief summary
Evidence from scientific studies demonstrate positive effects of ingredients Ginseng (Cereboost), Bacopa and Coffee fruit extract as isolated
components, on various mechanisms that impact cognitive performance and mood. For example, Ginseng and Gingko have been shown to
enhance cognitive performance after acute dosing whilst Bacopa has been shown to have effects primarily with chronic dosing. To date however, the combination of three
ingredients at established dosages of effect have not been evaluated.
This research seeks to conduct same day testing to understand any changes in cognitive performance and brain activation patterns using standardized cognitive tasks and a non-invasive functional near infrared spectroscopy (fNIRS), measured both before and after taking the active or placebo supplement.
Trial website
Trial related presentations / publications
Public notes

Principal investigator
Name 96910 0
A/Prof Talitha Best
Address 96910 0
School Health Medical and Applied Science
160 Ann street, Brisbane QLD, 4000
Country 96910 0
Phone 96910 0
+61 7 3295 1131
Fax 96910 0
Email 96910 0
Contact person for public queries
Name 96911 0
A/Prof Talitha Best
Address 96911 0
School Health Medical and Applied Science
160 Ann street, Brisbane QLD, 4000
Country 96911 0
Phone 96911 0
+61 7 3295 1131
Fax 96911 0
Email 96911 0
Contact person for scientific queries
Name 96912 0
A/Prof Talitha Best
Address 96912 0
School Health Medical and Applied Science
160 Ann street, Brisbane QLD, 4000
Country 96912 0
Phone 96912 0
+61 7 3295 1131
Fax 96912 0
Email 96912 0

Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
What data in particular will be shared?
De-identified individual participant data underlying published results only.
When will data be available (start and end dates)?
Following main results publication up to 12 months.
Available to whom?
only researchers who provide a methodologically sound proposal, case-by-case basis.
Available for what types of analyses?
Decided upon relevant request regarding meta analyses or in line with approved aims/intention of the study.
How or where can data be obtained?
Access subject to approval by Principal Investigator, email: or phone +61 7 3295 1131
What supporting documents are/will be available?
No other documents available
Summary results
Have study results been published in a peer-reviewed journal?
Other publications
Have study results been made publicly available in another format?
Results – basic reporting
Results – plain English summary
This study assessed whether a multi-ingredient herbal supplement containing Bacopa monniera (BM), Panax quinquefolius ginseng (PQ) and Whole Coffee Fruit Extract (WCFE) could enhance cognitive performance and brain activation during tasks of memory and attention. In a randomized, double-blind, placebo-controlled, between-group study, 40 healthy adults between 18-60 years completed cognitive tasks at baseline and following active or placebo supplement consumption in a 2 hour period. During the cognitive testing, changes in brain activity were continuously measured using non-invasive imaging, functional near infrared spectroscopy (fNIRS).
The results show significant improvement in tasks of working memory following active supplement consumption compared to placebo and improved performance was associated with changes in amount of brain activity required to complete the task. The results were independent of background demographics variables.