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DehydrationWatUPNCT05315531

The Effects of Hydration on Gut Health and Thinking

A study testing Water Intake in people with Dehydration and Cognitive Change, 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

The central hypothesis is that improving hydration through increased water consumption will change the relative abundance of mucolytic bacteria found in the stool. Therefore the specific aims are 1) to quantify intervention effects on fecal microbiota relative abundance and plasma lipopolysaccharide binding protein… Read more about this study

Who is it for?
Ages 19 to 50 yearsHealthy volunteers can take part
What is being tested?
Water Intake
Could I receive a placebo?
No, everyone receives an active treatment
How many people
23 participants
Where
1 siteUnited States
Study dates
23 Aug 2021to 29 Jul 2022
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 19 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • 19-50 years of age
  • 18.5-34.49 kg/m2
  • 24-hour UOsm above 500 mOsm/kg
  • No antibiotic use over the past 3 months
  • Absence of metabolic diseases and use of diuretics
  • Agree to maintain typical diet intake (e.g., dietary fiber) patterns during intervention
Show all 9Show fewer
  • Avoid consuming prebiotic and probiotic supplements during study participation
  • Not pregnant
  • Agree to follow the study protocol

Who cannot join

  • <19 or >50 years of age
  • <18.5 or >34.49 kg/m2
  • 24-hour UOsm <500 mOsm/kg
  • Antibiotic use over the past 3 months
  • Metabolic diseases and use of diuretics
  • Not agree to maintain typical diet intake (e.g., dietary fiber) patterns for the duration of the
Show all 10Show fewer
  • intervention
  • Not agree with avoiding consuming prebiotic and probiotic supplements during study participation
  • Pregnant
  • Not agree to follow study protocol

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Illinois at Urbana-Champaign

    Urbana, Illinois, 61801

Other trials in United States

About this study

Official title: Investigating the Effects of Increased Water Consumption on Markers of Gut Health, Microbiota, and Executive Function

The central hypothesis is that improving hydration through increased water consumption will change the relative abundance of mucolytic bacteria found in the stool. Therefore the specific aims are 1) to quantify intervention effects on fecal microbiota relative abundance and plasma lipopolysaccharide binding protein, 2) observe the effects of the intervention on bowel frequency and signs/symptoms of gastrointestinal stress, and 3) to investigate relations between executive function and hydration status.

Read the detailed description

A single arm 3-week hydration intervention will be employed where participants increase their water consumption to 2 (F) or 2.5(M) liters per day which is approximately 70% of the AI for daily water consumption. Pre-test and follow-up measures of fecal microbiota, urinary hydration status, cognitive function, circulating markers, and dietary intake will be assessed at baseline and at 3-week follow up via laboratory visits.

Being tested
Water Intake
Medical subject headings
Dehydration

What participants receive

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

  • Water IntakeDietary supplement

    Participants will increase plain water consumption to at least 70% of the daily adequate intake for Americans depending on their sex.

Study groups in NCT05315531
Study groupRoleWhat they receive
Water IntakeExperimental3-week intervention period during which articipants will be asked to increase their daily plain water consumption to at least 2.5 L/d of water for males and 2L/d for females.
Receives: Dietary Supplement: Water Intake

What is being measured

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

  1. Fecal microbiota relative abundance

    changes in the relative abundance of fecal microbiota

    Measured: 3 weeks (baseline vs. follow-up)

  2. Plasma lipopolysaccharide (LPS)

    changes in circulating LPS

    Measured: 3 weeks (baseline vs. follow-up)

Secondary outcomes (6)
  1. Copeptin

    changes in plasma copeptin concentration

    Measured: 3 weeks (baseline vs. follow-up)

  2. 24hr Urine Osmolality

    changes in osmolality (mOsmol/kg) of urine samples

    Measured: 3 weeks (baseline vs. follow-up)

  3. Attentional accuracy

    Accuracy (%) on a computerized flanker task

    Measured: 3 weeks (baseline vs. follow-up)

  4. Attentional Reaction Time

    Reaction time (ms) on a computerized flanker task

    Measured: 3 weeks (baseline vs. follow-up)

  5. Attentional processing speed

    P3 event related potential latency (ms) using a computerized flanker task

    Measured: 3 weeks (baseline vs. follow-up)

  6. 24hr Urine Specific Gravity

    changes in specific gravity (USG) of urine samples

    Measured: 3 weeks (baseline vs. follow-up)

Timeline

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

  1. First posted7 Apr 2022
  2. Study start23 Aug 2021
  3. Primary completion29 Jul 2022
  4. Study completion29 Jul 2022

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
Prevention
Allocation
Not applicable
Intervention model
Single group
Model description
Single arm hydration water intake intervention with a baseline urine concentration threshold for eligibility
Masking
None (open label)
Enrolment
23 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05315531
Sponsor's protocol ID
WatUP
Acronym
WatUP
Status last verified
Jan 2024
First submitted
1 Oct 2021
Last updated
11 Jan 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Water Intake in people with Dehydration and Cognitive Change, 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 9 inclusion and 10 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 11 Jan 2024. 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. 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?

Fecal microbiota relative abundance (time frame: 3 weeks (baseline vs. follow-up)). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 11 Jan 2024.

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