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AzTrials

Physiological StressEPOCHNCT02849275

Effects of Probiotics on Cognition and Health

A study testing Lactose Free 1% Milk and Probiotic Treatment in people with Physiological Stress and Cognition - Other, run by University of Illinois at Urbana-Champaign at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This research intervention aims to examine the effects of a fermented dairy beverage on changes in behavioral and biological measures of cognition and stress among adults. Read more about this study

Who is it for?
Ages 25 to 45 yearsHealthy volunteers can take part
Conditions the study is for
Physiological Stress, Cognition - Other
What is being tested?
Lactose Free 1% Milk and Probiotic Treatment
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
24 participants
Where
1 siteUnited States
Study dates
Aug 2016to Sep 2018
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 25 to 45 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Males and females
  • Between the ages of 25-45 years at the time of consent
  • BMI ≥18.5 kg/m2
  • Normal or corrected-to-normal vision based on the minimal 20/20 standard in order to complete the cognitive task.
  • Ability to drop-off fecal sample within 15 minutes of defecation

Who cannot join

  • Current pregnancy or lactation
  • Tobacco use
  • Dairy allergy or intolerance
  • Prior diagnosis of metabolic and gastrointestinal disease (cardiovascular disease and type 1 or type 2 diabetes, chronic constipation, diarrhea, Crohn's disease, celiac disease, ulcerative colitis, irritable bowel syndrome, diverticulosis, stomach or duodenal ulcers, hepatitis, HIV, cancer, etc.)
  • Prior diagnosis of cognitive or physical disability, including ADHD, severe asthma, epilepsy, chronic kidney disease
  • Use of any anti-psychotic, anti-depressant, anti-anxiety, or ADD/ADHD medications
  • Use of medications that alter normal bowel function and metabolism (e.g., recent antibiotic use, laxatives, enemas, anti-diarrheal agents, narcotics, antacids, antispasmodics, diuretics, anticonvulsants).
  • Prior malabsorptive bariatric surgery (i.e. gastric bypass, sleeve gastrectomy) or restrictive bariatric surgery (i.e. adjustable gastric band) within the past 2 years.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Illinois

    Urbana, Illinois, 61801

Other trials in United States

About this study

Official title: The Effects of Probiotics on Behavioral and Biological Markers of Cognition and Stress

This research intervention aims to examine the effects of a fermented dairy beverage on changes in behavioral and biological measures of cognition and stress among adults.

Read the detailed description

Evidence-based dietary strategies provide behavioral means benefiting physical and cognitive function. Pertinent to the proposed work, dietary intake has been recently shown to have the potential to directly influence the gut microbiota composition as well as brain function. Specifically, the consumption of probiotics or foods containing healthful microbial cultures (e.g., fermented milk, yogurts, etc.) are increasingly being recognized as modulators of metabolism, cognition, and stress. These foods are readily available in the marketplace, however, their implications for physical and cognitive function are not clear. Accordingly, the proposed study aims to investigate effects of probiotic beverage consumption on changes in behavioral and biological measures of cognition and stress among adults.

Being tested
Lactose Free 1% Milk, Probiotic Treatment

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Lactose Free 1% MilkOther

    isocaloric study treatment containing lactose free 1% milk consumed once daily over 4-5 weeks as a control.

  • Probiotic TreatmentOther

    Probiotic treatment, consumed once daily, over 4-5 weeks.

Study groups in NCT02849275
Study groupRoleWhat they receive
Lactose free 1% milkPlacebo comparatorDiet will be recorded with a 7-day diet record and participants will include an isocaloric study treatment containing lactose free 1% milk consumed once daily over 4-5 weeks as a control.
Receives: Other: Lactose Free 1% Milk
Probiotic treatmentExperimentalDiet will be recorded with a 7-day diet record and participants will include an isocaloric fermented milk (probiotic), consumed once daily, over 4-5 weeks.
Receives: Other: Probiotic Treatment

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Changes in cortisol as a biomarker of stress

    The effects of probiotic consumption on biomarkers of stress

    Measured: 4-5 weeks

Secondary outcomes (1)
  1. Changes in fecal microbiota populations

    The effects of probiotic consumption on fecal microbiota

    Measured: 4-5 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Jul 2016 (estimated)
  2. Study startAug 2016
  3. Primary completionSep 2018
  4. Study completionSep 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Crossover
Model description
Participants will pass through 2 arms, control and probiotic, in a randomized, counter-balanced order.
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
24 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02849275
Sponsor's protocol ID
16840-1
Acronym
EPOCH
Status last verified
Jul 2018
First submitted
22 Jul 2016
Last updated
17 Oct 2018
Results posted
No
Data monitoring committee
No
Individual data sharing
Yes: Results will be disseminated by journal articles, thesis or academic papers, conference presentations, and sharing with the funding organization. No subject's identity will be disclosed in any presentation or released without their written permission.

Publications

  • Cannavale CN, Mysonhimer AR, Bailey MA, Cohen NJ, Holscher HD, Khan NA. Consumption of a fermented dairy beverage improves hippocampal-dependent relational memory in a randomized, controlled cross-over trial. Nutr Neurosci. 2023 Mar;26(3):265-274. doi: 10.1080/1028415X.2022.2046963. Epub 2022 Mar 13.

    PubMed 35282787

Questions about this trial

What is this clinical trial studying?

A study testing Lactose Free 1% Milk and Probiotic Treatment in people with Physiological Stress and Cognition - Other, run by University of Illinois at Urbana-Champaign at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 17 Oct 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Changes in cortisol as a biomarker of stress (time frame: 4-5 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02849275, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Oct 2018.

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