NCT05008549

Brief Summary

This study aims to determine the effect short-term dosing (7 days) of a placebo beverage, cranberry juice, cranberry juice + lemon balm extract, cranberry juice + tart cherry powder, or cranberry juice + L-theanine or L-theanine beverage on cognitive function and mood in healthy adults (18-45 years). The study will include measures of attention, alertness, performance, and mood/stress.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
25

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jul 2021

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 14, 2021

Completed
12 days until next milestone

Study Start

First participant enrolled

July 26, 2021

Completed
22 days until next milestone

First Posted

Study publicly available on registry

August 17, 2021

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2021

Completed
Last Updated

July 7, 2023

Status Verified

July 1, 2023

Enrollment Period

3 months

First QC Date

July 14, 2021

Last Update Submit

July 5, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • To evaluate in healthy adults the effect of 7-day consumption of cranberry beverages compared to placebo on attention.

    Change in Accuracy of Attention and Change in Speed of Attention composite scores outcomes from Baseline to each treatment phase (V3-8), assessed using the COMPASS cognitive assessment tool.

    7 days

Secondary Outcomes (6)

  • To evaluate in healthy adults the effect of 7-day consumption of cranberry beverages compared to placebo on measures of focus.

    7 days

  • To evaluate in healthy adults the effect of 7-day consumption of cranberry beverages compared to placebo on measures of alertness.

    7 days

  • To evaluate in healthy adults the effect of 7-day consumption of cranberry beverages compared to placebo on measures of cognition (accuracy of performance).

    7 days

  • To evaluate in healthy adults the effect of 7-day consumption of cranberry beverages compared to placebo on measures of cognition (speed of performance).

    7 days

  • To evaluate in healthy adults the effect of 7-day consumption of cranberry beverages compared to placebo on mood.

    7 days

  • +1 more secondary outcomes

Other Outcomes (6)

  • To evaluate in healthy adults the safety and tolerability of 7-day consumption of cranberry beverages compared to placebo (Proportion of Adverse Events).

    7 days

  • To evaluate in healthy adults the safety and tolerability of 7-day consumption of cranberry beverages compared to placebo (Incidence of Adverse Events).

    7 days

  • To evaluate in healthy adults the safety and tolerability of 7-day consumption of cranberry beverages compared to placebo (Incidence of Serious Adverse Events).

    7 days

  • +3 more other outcomes

Study Arms (6)

First Product Order: order not stated to protect study blinding

EXPERIMENTAL

Participants will receive each of the 6 study products sequentially in a cross-over design, consuming one study product for 7 days, followed by a 7 day wash-out period before beginning the next product in the sequence.

Dietary Supplement: Cranberry Juice Product

Second Product Order: order not stated to protect study blinding

EXPERIMENTAL

Participants will receive each of the 6 study products sequentially in a cross-over design, consuming one study product for 7 days, followed by a 7 day wash-out period before beginning the next product in the sequence

Dietary Supplement: Cranberry Juice Product

Third Product Order: order not stated to protect study blinding

EXPERIMENTAL

Participants will receive each of the 6 study products sequentially in a cross-over design, consuming one study product for 7 days, followed by a 7 day wash-out period before beginning the next product in the sequence

Dietary Supplement: Cranberry Juice Product

Fourth Product Order: order not stated to protect study blinding

EXPERIMENTAL

Participants will receive each of the 6 study products sequentially in a cross-over design, consuming one study product for 7 days, followed by a 7 day wash-out period before beginning the next product in the sequence

Dietary Supplement: Cranberry Juice Product

Fifth Product Order: order not stated to protect study blinding

EXPERIMENTAL

Participants will receive each of the 6 study products sequentially in a cross-over design, consuming one study product for 7 days, followed by a 7 day wash-out period before beginning the next product in the sequence

Dietary Supplement: Cranberry Juice Product

Sixth Product Order: order not stated to protect study blinding

EXPERIMENTAL

Participants will receive each of the 6 study products sequentially in a cross-over design, consuming one study product for 7 days, followed by a 7 day wash-out period before beginning the next product in the sequence

Dietary Supplement: Cranberry Juice Product

Interventions

Cranberry Juice ProductDIETARY_SUPPLEMENT

The cranberry juice product contains 100 % cranberry juice (ingredients: water, cranberry juice concentrate) The cranberry juice + lemon balm extract product contains 100 % cranberry juice (ingredients: water, cranberry juice concentrate) + lemon balm extract (300 mg, Robertet Groupe) The cranberry juice + tart cherry juice product contains 100 % cranberry juice (ingredients: water, cranberry juice concentrate) + 3 g tart cherry powder (Cherry PURE) The cranberry juice + L-theanine product contains 100% cranberry juice (ingredients: water, cranberry juice concentrate) + 200 mg L-theanine (Suntheanine, Taiyo International) L-theanine + placebo product contains L-theanine (200 mg, Suntheanine, Taiyo International) + placebo (see 5.2.1) The placebo product contains water, dextrose, citric acid, malic acid, fumaric acid, natural flavor, Red #40, xanthan gum, Blue #1, gum Arabic, Reb M, Steviol glycosides, and ester gum.

Also known as: Cranberry Juice + Lemon Balm Extract Product, Cranberry Juice + Tart Cherry Juice Product, Cranberry Juice + L-theanine Product, L-theanine + Placebo Product, Placebo Product
Fifth Product Order: order not stated to protect study blindingFirst Product Order: order not stated to protect study blindingFourth Product Order: order not stated to protect study blindingSecond Product Order: order not stated to protect study blindingSixth Product Order: order not stated to protect study blindingThird Product Order: order not stated to protect study blinding

Eligibility Criteria

Age18 Years - 45 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Be able to give written informed consent and willing/able to comply with study procedures.
  • Be between 18 and 45 years, inclusive.
  • Is in general good health, as determined by the investigator.
  • Has a BMI between ≥20 - ≤35 kg/m2.
  • Has had a stable body weight (≤5 % change) over the past 3-months.
  • Has a Beck Depression Inventory II score ≤20 at screening.
  • Willing to discontinue consumption of wine and dark red/blue colored fruits and polyphenol-rich fruits (e.g., pomegranate, blueberries, grapes), lemon balm, tart cherry powder, and L-Theanine for the two weeks leading up to the study (from the Screening visit V1 to baseline V2) and during the study.
  • Willing and able to avoid consumption of any cranberry juice, whole cranberries, and dried cranberries for the two weeks leading up to the study (from the Screening visit V1 to baseline V2) and during the study, excluding the study beverage.
  • Is willing to provide saliva samples.
  • Maintain current level of physical activity and dietary habits throughout the study.

You may not qualify if:

  • Participants that meet any of the following criteria will be excluded from the trial:
  • Has a known or suspected allergy to components of the investigational product (e.g., cranberries, tart cherry, lemon balm, L-theanine).
  • Uncontrolled blood pressure or untreated hypertension.
  • Consumes \>2 alcoholic beverages per day or \>14 per week.
  • Major chronic illness or health condition that might interfere with the study outcomes at the discretion of the study clinician or principal investigator.
  • Individuals who smoke or use nicotine patches or gum or e-cigarettes, or marijuana (within the past 6 months).
  • Individuals who have experienced a stroke or a head injury with concussion, loss of consciousness or seizures.
  • History or clinical manifestation of any significant neurologic disorder in the opinion of the investigator and/or study clinician.
  • Participants may not be receiving treatment involving experimental drugs. If the participant has been in a recent experimental trial, these must have been completed not less than one month prior to this trial.
  • Desire and/or plans on changing current diet and/or exercise regime during the participation of this trial.
  • Individuals who are pregnant or lactating.
  • Individuals currently of childbearing potential, but not using an effective method of contraception, as determined by the investigator.
  • History of heavy caffeinated beverage consumption (\>400 mg caffeine/day - or 4 cups of coffee per day) within past 2 weeks prior to the Screening Visit (V1), or before their Baseline Visit (V2).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Atlantia Clinical Trials Ltd

Chicago, Illinois, 60611, United States

Location

Related Publications (8)

  • Travica N, D'Cunha NM, Naumovski N, Kent K, Mellor DD, Firth J, Georgousopoulou EN, Dean OM, Loughman A, Jacka F, Marx W. The effect of blueberry interventions on cognitive performance and mood: A systematic review of randomized controlled trials. Brain Behav Immun. 2020 Mar;85:96-105. doi: 10.1016/j.bbi.2019.04.001. Epub 2019 Apr 15.

  • Lamport DJ, Williams CM. Polyphenols and Cognition In Humans: An Overview of Current Evidence from Recent Systematic Reviews and Meta-Analyses. Brain Plast. 2021 Feb 9;6(2):139-153. doi: 10.3233/BPL-200111.

  • Scholey A, Gibbs A, Neale C, Perry N, Ossoukhova A, Bilog V, Kras M, Scholz C, Sass M, Buchwald-Werner S. Anti-stress effects of lemon balm-containing foods. Nutrients. 2014 Oct 30;6(11):4805-21. doi: 10.3390/nu6114805.

  • Kennedy DO, Scholey AB, Tildesley NT, Perry EK, Wesnes KA. Modulation of mood and cognitive performance following acute administration of Melissa officinalis (lemon balm). Pharmacol Biochem Behav. 2002 Jul;72(4):953-64. doi: 10.1016/s0091-3057(02)00777-3.

  • Kennedy DO, Little W, Scholey AB. Attenuation of laboratory-induced stress in humans after acute administration of Melissa officinalis (Lemon Balm). Psychosom Med. 2004 Jul-Aug;66(4):607-13. doi: 10.1097/01.psy.0000132877.72833.71.

  • Chai SC, Jerusik J, Davis K, Wright RS, Zhang Z. Effect of Montmorency tart cherry juice on cognitive performance in older adults: a randomized controlled trial. Food Funct. 2019 Jul 17;10(7):4423-4431. doi: 10.1039/c9fo00913b.

  • Yokogoshi H, Kobayashi M, Mochizuki M, Terashima T. Effect of theanine, r-glutamylethylamide, on brain monoamines and striatal dopamine release in conscious rats. Neurochem Res. 1998 May;23(5):667-73. doi: 10.1023/a:1022490806093.

  • Williams JL, Everett JM, D'Cunha NM, Sergi D, Georgousopoulou EN, Keegan RJ, McKune AJ, Mellor DD, Anstice N, Naumovski N. The Effects of Green Tea Amino Acid L-Theanine Consumption on the Ability to Manage Stress and Anxiety Levels: a Systematic Review. Plant Foods Hum Nutr. 2020 Mar;75(1):12-23. doi: 10.1007/s11130-019-00771-5.

MeSH Terms

Interventions

theanine

Study Officials

  • Alice Eggleston, PA-C, MPH

    Atlantia Clinical Trials Ltd.

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
OTHER
Intervention Model
CROSSOVER
Model Details: A randomized, double-blinded, placebo-controlled, crossover study, to assess the synergistic effects of a cranberry beverage on cognitive function in healthy adults aged 18-45.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 14, 2021

First Posted

August 17, 2021

Study Start

July 26, 2021

Primary Completion

November 1, 2021

Study Completion

November 1, 2021

Last Updated

July 7, 2023

Record last verified: 2023-07

Data Sharing

IPD Sharing
Will not share

Locations