Longitudinal Study to Assess the Effects of Whole Coffee Cherry Extract (WCCE)
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Effect of Drug
- Sponsor
- Auburn University
- Enrollment
- 323
- Locations
- 1
- Primary Endpoint
- Behavioral Measures - Change in Trail Making Reaction Time
- Status
- Completed
- Last Updated
- 2 years ago
Overview
Brief Summary
There has been increasing interest in natural dietary supplements that may support healthy cognition. Recent studies have demonstrated promising effects of bioactive phytochemicals (e.g., polyphenols) on cardiovascular and endocrine health outcomes. As such, an increasingly intriguing line of inquiry is whether materials high in these compounds may also have effects on psychological measures. Preliminary evidence suggests that polyphenols may improve cognition, for example, particularly in aging populations. Whole coffee cherry extract (WCCE; otherwise known as the generally-recognized-as-safe (GRAS) supplement Neurofactor(TM)), is a proprietary, safe, powdered extract of whole coffee cherries from coffea arabica with high levels of polyphenols and substantially low (<2%; <4mg) levels of caffeine. WCCE has been previously associated with increased serum concentrations of both circulating and exosomal brain derived neurotrophic factor (BDNF), in addition to increased alertness and decreased fatigue. However, few well-powered and well-designed studies have been conducted despite the mounting preliminary evidence. Here, the investigators propose a study to examine the long-term effects of a 200mg dose of WCCE on measures of cognition.
Detailed Description
The investigators will conduct a virtual study whereby participants will be given either 200mg WCCE or placebo to take every day for 28 days. Every 7 days, participants will take a cognitive assessment via the internet using a platform called Millisecond (https://www.millisecond.com/). The cognitive assessment will be composed of tasks that broadly test working memory, focus, and attention. Compliance checks will be administered daily via the participant's smartphone. This study will be conducted in a double-blind fashion, such that the experimental team and the participants are unaware of group assignment (200mg vs. placebo). Blinding information will be held by the study sponsor, VDF FutureCeuticals, Inc. Group assignment will be determined by random number generator, with restrictions to ensure equal group sizes, and equal distribution of males/females in each group. Participants, between 40-65 years of age, with no known psychiatric or neurological conditions, will be recruited from the general community via online advertisements, social media posts, community flyers, and newspaper ads (if needed). Participants will be excluded if they are taking medications known to alter cognitive functioning (psychotropic medications such as fluoxetine, benzodiazepines, etc. or other medications such as insulin). The primary variables of interest will be the behavioral performance on the cognitive tasks over time, inclusive of reaction time and accuracy. Compensation will be commensurate with study participation, with a maximum payout of $125.
Investigators
Jennifer L. Robinson, Ph.D.
Professor
Auburn University
Eligibility Criteria
Inclusion Criteria
- •Between 40-65 years of age
- •No diagnosed psychiatric or neurological condition
- •Reliable internet service
- •Moderate computer literacy
- •Individuals must have a smartphone
- •Individuals must have a laptop, desktop, or iPad
Exclusion Criteria
- •Individuals taking medications known to alter cognitive functioning (e.g., psychotropic medications such as fluoxetine, benzodiazepines, etc.)
- •Individuals taking medications that alter metabolic function, such as insulin or metformin.
- •Shift workers
- •Health conditions that would prevent an individual from successfully completing the study (I.e., motor control conditions such as Parkinson's, or psychiatric conditions such as ADHD)
- •Individuals with metabolic conditions
- •Have had or currently have cancer
- •Have taken CBD or multivitamins in the last 2 weeks
- •Individuals with unreliable or no internet access/service
- •Individuals who are unable to use a smartphone or are lacking the computer literacy necessary to complete the study remotely
- •Individuals without a laptop, desktop or iPad that would prevent them from completing the study.
Outcomes
Primary Outcomes
Behavioral Measures - Change in Trail Making Reaction Time
Time Frame: Collected at baseline (pre- and post-consumption) and then once weekly (pre-consumption) through the duration of the study (approximately 28 days)
Response/reaction time/accuracy for each stimuli will be recorded in ms using Inquisit. Reaction times will be calculated for correct and incorrect trials separately.
Behavioral Measures - Change in Face in the Crowd Time
Time Frame: Collected at baseline (pre- and post-consumption) and then once weekly (pre-consumption) through the duration of the study (approximately 28 days)
Response/reaction time/accuracy for each stimuli will be recorded in ms using Inquisit. Reaction times will be calculated for correct and incorrect trials separately.
Behavioral Measures - Change in Go/NoGo Reaction Time
Time Frame: Collected at baseline (pre- and post-consumption) and then once weekly (pre-consumption) through the duration of the study (approximately 28 days)
Response/reaction time/accuracy for each stimuli will be recorded in ms using Inquisit. Reaction times will be calculated for correct and incorrect trials separately.
Behavioral Measures - Change in Symbol Search Reaction Time
Time Frame: Collected at baseline (pre- and post-consumption) and then once weekly (pre-consumption) through the duration of the study (approximately 28 days)
Response/reaction time/accuracy for each stimuli will be recorded in ms using Inquisit. Reaction times will be calculated for correct and incorrect trials separately.
Behavioral Measures - Change in Face-Name Reaction Time
Time Frame: Collected at baseline (pre- and post-consumption) and then once weekly (pre-consumption) through the duration of the study (approximately 28 days)
Response/reaction time/accuracy for each stimuli will be recorded in ms using Inquisit. Reaction times will be calculated for correct and incorrect trials separately.
Behavioral Measures - Change in Flanker Task Reaction Time
Time Frame: Collected at baseline (pre- and post-consumption) and then once weekly (pre-consumption) through the duration of the study (approximately 28 days)
Response/reaction time/accuracy for each stimuli will be recorded in ms using Inquisit. Reaction times will be calculated for correct and incorrect trials separately.
Behavioral Measures - Change in N-back Reaction Time
Time Frame: Collected at baseline (pre- and post-consumption) and then once weekly (pre-consumption) through the duration of the study (approximately 28 days)
Response/reaction/accuracy time for each stimuli will be recorded in ms using Inquisit. Reaction times will be calculated for correct and incorrect trials separately.
Behavioral Measures - Change in Stroop Reaction Time
Time Frame: Collected at baseline (pre- and post-consumption) and then once weekly (pre-consumption) through the duration of the study (approximately 28 days)
Response/reaction time/accuracy for each stimuli will be recorded in ms using Inquisit. Reaction times will be calculated for correct and incorrect trials separately.
Secondary Outcomes
- Daily Self-reported Sleep(The question will be administered daily for the duration of the study (approximately 28 days))
- Weekly Self-reported Sleep Hygiene(Questions are administered weekly for the duration of the study (approximately 28 days))
- Weekly Self-reported Mood(The questionnaire is administered weekly for the duration of the study (approximately 28 days))
- Daily Self-reported Mood(The question will be administered daily for the duration of the study (approximately 28 days))