Whole Coffee Cherry Study

Effect of Drug Clinical Trial

— WCCE  

Official title:

Longitudinal Study to Assess the Effects of Whole Coffee Cherry Extract (WCCE)

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04986956
• Other study ID #: #21-219
• Status: Completed
• Phase: N/A
• Start date: February 1, 2022
• Est. completion date: January 29, 2024

Study information

• Verified date: January 2024
• Source: Auburn University
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial 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.

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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 323
• Est. completion date: January 29, 2024
• Est. primary completion date: October 31, 2022
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 40 Years to 65 Years

Eligibility

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.

Related Conditions & MeSH terms

• Effect of Drug

Intervention

Dietary Supplement:
• Whole coffee cherry extract
200mg WCCE
• Placebo
Placebo for comparison to WCCE

Locations

Country	Name	City	State
United States	Auburn University	Auburn	Alabama

Sponsors (2)

Lead Sponsor	Collaborator
Auburn University	VDF FutureCeuticals Inc.

Country where clinical trial is conducted

United States, 

References & Publications (14)

Abdel-Aziz K, Larner AJ. Six-item cognitive impairment test (6CIT): pragmatic diagnostic accuracy study for dementia and MCI. Int Psychogeriatr. 2015 Jun;27(6):991-7. doi: 10.1017/S1041610214002932. Epub 2015 Jan 29. — View Citation

Cao H, Ou J, Chen L, Zhang Y, Szkudelski T, Delmas D, Daglia M, Xiao J. Dietary polyphenols and type 2 diabetes: Human Study and Clinical Trial. Crit Rev Food Sci Nutr. 2019;59(20):3371-3379. doi: 10.1080/10408398.2018.1492900. Epub 2018 Nov 19. — View Citation

Heimbach JT, Marone PA, Hunter JM, Nemzer BV, Stanley SM, Kennepohl E. Safety studies on products from whole coffee fruit. Food Chem Toxicol. 2010 Aug-Sep;48(8-9):2517-25. doi: 10.1016/j.fct.2010.06.025. Epub 2010 Jun 18. — View Citation

Hurtado-Barroso S, Quifer-Rada P, Rinaldi de Alvarenga JF, Perez-Fernandez S, Tresserra-Rimbau A, Lamuela-Raventos RM. Changing to a Low-Polyphenol Diet Alters Vascular Biomarkers in Healthy Men after Only Two Weeks. Nutrients. 2018 Nov 14;10(11):1766. doi: 10.3390/nu10111766. — View Citation

Mendonca RD, Carvalho NC, Martin-Moreno JM, Pimenta AM, Lopes ACS, Gea A, Martinez-Gonzalez MA, Bes-Rastrollo M. Total polyphenol intake, polyphenol subtypes and incidence of cardiovascular disease: The SUN cohort study. Nutr Metab Cardiovasc Dis. 2019 Jan;29(1):69-78. doi: 10.1016/j.numecd.2018.09.012. Epub 2018 Oct 4. — View Citation

Reed, R.A., et al., Acute Low and Moderate Doses of a Caffeine-Free Polyphenol-Rich Coffeeberry Extract Improve Feelings of Alertness and Fatigue Resulting from the Performance of Fatiguing Cognitive Tasks. Journal of Cognitive Enhancement, 2018.

Reyes-Izquierdo T, Nemzer B, Shu C, Huynh L, Argumedo R, Keller R, Pietrzkowski Z. Modulatory effect of coffee fruit extract on plasma levels of brain-derived neurotrophic factor in healthy subjects. Br J Nutr. 2013 Aug 28;110(3):420-5. doi: 10.1017/S0007114512005338. Epub 2013 Jan 14. — View Citation

Robinson JL, Hunter JM, Reyes-Izquierdo T, Argumedo R, Brizuela-Bastien J, Keller R, Pietrzkowski ZJ. Cognitive short- and long-term effects of coffee cherry extract in older adults with mild cognitive decline. Neuropsychol Dev Cogn B Aging Neuropsychol Cogn. 2020 Nov;27(6):918-934. doi: 10.1080/13825585.2019.1702622. Epub 2019 Dec 12. — View Citation

Robinson JL, Yanes JA, Reid MA, Murphy JE, Busler JN, Mumford PW, Young KC, Pietrzkowski ZJ, Nemzer BV, Hunter JM, Beck DT. Neurophysiological Effects of Whole Coffee Cherry Extract in Older Adults with Subjective Cognitive Impairment: A Randomized, Double-Blind, Placebo-Controlled, Cross-Over Pilot Study. Antioxidants (Basel). 2021 Jan 20;10(2):144. doi: 10.3390/antiox10020144. — View Citation

Sarubbo F, Moranta D, Pani G. Dietary polyphenols and neurogenesis: Molecular interactions and implication for brain ageing and cognition. Neurosci Biobehav Rev. 2018 Jul;90:456-470. doi: 10.1016/j.neubiorev.2018.05.011. Epub 2018 May 23. — View Citation

Schuster J, Mitchell ES. More than just caffeine: psychopharmacology of methylxanthine interactions with plant-derived phytochemicals. Prog Neuropsychopharmacol Biol Psychiatry. 2019 Mar 8;89:263-274. doi: 10.1016/j.pnpbp.2018.09.005. Epub 2018 Sep 10. — View Citation

Shukitt-Hale B, Miller MG, Chu YF, Lyle BJ, Joseph JA. Coffee, but not caffeine, has positive effects on cognition and psychomotor behavior in aging. Age (Dordr). 2013 Dec;35(6):2183-92. doi: 10.1007/s11357-012-9509-4. Epub 2013 Jan 24. — View Citation

Whyte AR, Cheng N, Fromentin E, Williams CM. A Randomized, Double-Blinded, Placebo-Controlled Study to Compare the Safety and Efficacy of Low Dose Enhanced Wild Blueberry Powder and Wild Blueberry Extract (ThinkBlue) in Maintenance of Episodic and Working Memory in Older Adults. Nutrients. 2018 May 23;10(6):660. doi: 10.3390/nu10060660. — View Citation

Yashin A, Yashin Y, Wang JY, Nemzer B. Antioxidant and Antiradical Activity of Coffee. Antioxidants (Basel). 2013 Oct 15;2(4):230-45. doi: 10.3390/antiox2040230. — View Citation

* Note: There are 14 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	Compliance	The investigators will assess compliance via daily questionnaires delivered to the participant's smartphone.	Daily for the duration of the study (approximately 28 days)
Primary	Behavioral Measures - Change in Go/NoGo Reaction Time	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.	Collected at baseline (pre- and post-consumption) and then once weekly (pre-consumption) through the duration of the study (approximately 28 days)
Primary	Behavioral Measures - Change in N-back Reaction Time	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.	Collected at baseline (pre- and post-consumption) and then once weekly (pre-consumption) through the duration of the study (approximately 28 days)
Primary	Behavioral Measures - Change in Face-Name Reaction Time	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.	Collected at baseline (pre- and post-consumption) and then once weekly (pre-consumption) through the duration of the study (approximately 28 days)
Primary	Behavioral Measures - Change in Stroop Reaction Time	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.	Collected at baseline (pre- and post-consumption) and then once weekly (pre-consumption) through the duration of the study (approximately 28 days)
Primary	Behavioral Measures - Change in Flanker Task Reaction Time	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.	Collected at baseline (pre- and post-consumption) and then once weekly (pre-consumption) through the duration of the study (approximately 28 days)
Primary	Behavioral Measures - Change in Symbol Search Reaction Time	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.	Collected at baseline (pre- and post-consumption) and then once weekly (pre-consumption) through the duration of the study (approximately 28 days)
Primary	Behavioral Measures - Change in Trail Making Reaction Time	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.	Collected at baseline (pre- and post-consumption) and then once weekly (pre-consumption) through the duration of the study (approximately 28 days)
Primary	Behavioral Measures - Change in Face in the Crowd Time	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.	Collected at baseline (pre- and post-consumption) and then once weekly (pre-consumption) through the duration of the study (approximately 28 days)
Secondary	Daily Self-reported Sleep	The investigators will assess changes in the amount of sleep a participant had on a daily basis for the entire duration of the study via a single daily question asking about the number of hours of sleep the participant had the night before.	The question will be administered daily for the duration of the study (approximately 28 days)
Secondary	Weekly Self-reported Sleep Hygiene	The investigators will assess changes in sleep via an in-house questionnaire (administered every 7 days for the entire length of the study) that inquires about the quality of sleep for the past 7 days, as well as how the participant would rate their sleep for the night prior to the assessment. These questions are scored as 1 = excellent, 2 = good, 3 = average, 4 = poor, and 5 = terrible.	Questions are administered weekly for the duration of the study (approximately 28 days)
Secondary	Weekly Self-reported Mood	The investigators will assess changes in mood every 7 days for the duration of the study. This questionnaire, developed in-house, asks about how often the participant has felt alert, focused, attentive, in-control, sleepy, determined, motivated, happy, and upset the participant has felt in the last 7 days. The scale is scored as 1 = always, 2 = most of the time, 3 = about half of the time, 4 = sometimes, and 5 = never.	The questionnaire is administered weekly for the duration of the study (approximately 28 days)
Secondary	Daily Self-reported Mood	The investigators will assess changes in mood via a daily question about how good/bad the participant feels on a scale of 0-100 (0 being worst they have ever felt, and 100 being the best they have ever felt).	The question will be administered daily for the duration of the study (approximately 28 days)