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HydrationNCT05451446

The Effect of Proprietary Water on Physiological and Perceptual Responses

A study testing proprietary water and Active comparator in people with Hydration and Dehydration, run by University of South Carolina 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 purpose of this study is to determine if drinking proprietary water (PW) during a standardized daily plan as compared to distilled water (control) and carbohydrate-electrolyte (CE) drink can improve hydration status over time. Read more about this study

Who is it for?
Ages 18 to 50 yearsHealthy volunteers can take part
Conditions the study is for
Hydration, Dehydration
What is being tested?
proprietary water and Active comparator
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
47 participants
Where
1 siteUnited States
Study dates
15 Jul 2022to 5 Apr 2023
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 18 to 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • regularly completing aerobic exercise (at least 3 times a week for >150 minutes/week) in order to complete the estimated 12K in the study protocol

Who cannot join

  • current musculoskeletal injury restricting normal physical activity
  • a "no" on the PAR-Q
  • allergy to food dyes
  • previous heat illness in the last year
  • pregnancy
  • any condition that could make exercising in warm conditions not safe (diabetes, cancer, etc.)
  • certain medications (affecting blood pressure during exercise or hydration status)
  • contraindications to the temperature pill

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of South Carolina Sport Science Lab

    Columbia, South Carolina, 29208

Other trials in United States

About this study

Official title: The Effect of Proprietary Water on Physiological and Perceptual Responses in Activities of Daily Living and a Heat Stressful Environment

The purpose of this study is to determine if drinking proprietary water (PW) during a standardized daily plan as compared to distilled water (control) and carbohydrate-electrolyte (CE) drink can improve hydration status over time. Another purpose is to determine if PW, as compared to control and CE, can improve hydration status, perceptual responses, physiological responses, and cognition measures in a heat stressful environment. Healthy, physically active males and females aged 18 to 50y will be recruited for the study. Participants will be randomized into one of three groups: PW, CE, or Control. The participant will be given a daily standardized plan integrating their assigned fluid into daily hydration habits for five days. Participants will provide their first-morning urine sample, keep a daily food log, and answer questions about their perceptions of hydration. After the five days, they will participate in a treadmill exercise protocol within a warm environment (heat chamber). Multiple physiological, perceptual, and cognitive measures will be obtained while participants exercise and then recover.

Read the detailed description

The study will investigate the effects of drinking proprietary water over a five-day free-living period and then during a heat stress environment compared to distilled water and a carbohydrate-electrolyte drink on markers of hydration, performance, and cognition. This will be a single-blind between-subjects study design. Participants will report to The University of South Carolina for two visits. At the first visit, potential participants will be explained the procedures and risks of the study and then sign an informed consent. Anthropometrics and demographic data will next be collected. Lastly, participants will be familiarized with specific measures and the testing protocol. Participants will take home study products to consume over 5-free living days in which they will need to keep a food and drink log and collect their first urine void of the day to drop off at the laboratory. After the free-living days, participants will return to the laboratory for their heat stress environment test. They will consume a standardized breakfast, complete questionnaires, then perform a 45-minute exercise protocol in the heat chamber. After the first 45-minutes, there will be a break to complete cognitive measures and return to the heat chamber for another 45-minute exercise protocol. Throughout the exercise protocols, participants will be responding to perceptual questions and blood draws. Following, they will rest for 60 minutes, during which they will answer more perceptual questionnaires and blood measures.

Being tested
proprietary water, Active comparator, Placebo
Medical subject headings
Dehydration

What participants receive

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

  • proprietary waterDietary supplement

    They are randomized to consume a proprietary water product for five-free living days and to drink on the heat stress chamber day.

  • Active comparatorOther

    They are randomized to consume a carbohydrate drink for five-free living days and to drink on the heat stress chamber day.

  • PlaceboOther

    They are randomized to consume water for five-free living days and to drink on the heat stress chamber day.

Study groups in NCT05451446
Study groupRoleWhat they receive
proprietary waterExperimentalParticipants in this group will consume a proprietary water blend for 5-free living days and then throughout their heat stress environment day.
Receives: Dietary Supplement: proprietary water
carbohydrate-electrolyte drinkActive comparatorParticipants in this group will consume a commercial carbohydrate-electrolyte drink for 5-free living days and then throughout their heat stress environment day.
Receives: Other: Active comparator
distilled waterPlacebo comparatorParticipants in this group will consume distilled water for 5-free living days and then throughout their heat stress environment day.
Receives: Other: Placebo

What is being measured

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

  1. Changes in plasma osmolality as a marker of hydration status.

    To determine if proprietary water has any effect on plasma osmolality compared to an active comparator and placebo.

    Measured: On heat stress environment day. TP 2 (60 minutes).TP 5 (165 minutes). TP 7 (225 minutes).

  2. Changes in core body temperature measured by ingestible telemetric pills or rectal thermometer.

    To determine if proprietary water has any effect on core body temperatures compared to an active comparator and placebo.

    Measured: On heat stress environment day. TP 1 (0 minute). TP 2 (60 minutes). TP 3 (105 minutes). TP 4 (125 minutes). TP 5 (165 minutes). TP 6 (195 minutes). TP 7 (225 minutes). Every 10-minutes during the exercise protocol.

  3. Changes in heart rate.

    To determine if proprietary water has any effect on heart rate compared to an active comparator and placebo.

    Measured: On heat stress environment day. TP 1 (0 minute). TP 2 (60 minutes). TP 3 (105 minutes). TP 4 (125 minutes). TP 5 (165 minutes). TP 6 (195 minutes). TP 7 (225 minutes). Every 10-minutes during the exercise protocol.

  4. Changes in urine specific gravity (USG) as a clinical marker of hydration status.

    To determine if proprietary water has any effect on USG compared to an active comparator and placebo.

    Measured: Every morning of the 5 free living days and TP 1(0 minute) on the heat stress day.

  5. Changes in plasma volume measured by hematocrit and hemoglobin

    To determine if proprietary water has any effect on plasma volume changes as compared to an active comparator and placebo.

    Measured: On heat stress environment day. TP 2 (60 minutes). TP 3 (105 minutes). TP 4 (125 minutes). TP 5 (165 minutes). TP 6 (195 minutes). TP 7 (225 minutes).

  6. Changes in sweat rate as measured by body mass changes.

    To determine if proprietary water has any effect on sweat rate compared to an active comparator and placebo. This will be measured by body mass changes divided by the activity time.

    Measured: On heat stress environment day. TP 1 (0 minute). TP 2 (60 minutes). TP 3 (105 minutes). TP 4 (125 minutes). TP 5 (165 minutes). TP 6 (195 minutes). TP 7 (225 minutes).

  7. Changes in thirst sensation

    To determine if proprietary water has any effect on thirst sensation assessed by a 9-point scale on Thirst Sensation, compared to an active comparator and placebo. The min score is 1 and the max score is 9, with higher scores associated with worse outcomes.

    Measured: Every morning of the 5 free living days and on the heat stress day time points; TP 2 (60 minutes). TP 3 (105 minutes). TP 4 (125 minutes). TP 5 (165 minutes). TP 6 (195 minutes). TP 7 (225 minutes). 22:30 minute into 1st and 2nd 45 minute exercise

  8. Changes in thermal sensation

    To determine if proprietary water has any effect on thirst sensation assessed by an 8-point scale on Thermal Sensation, compared to an active comparator and placebo. The min score is 0 and the max score is 8, with higher scores associated with worse outcomes.

    Measured: Every morning of the 5 free living days and on the heat stress day time points; TP 2 (60 minutes). TP 3 (105 minutes). TP 4 (125 minutes). TP 5 (165 minutes). TP 6 (195 minutes). TP 7 (225 minutes). 22:30 minute into 1st and 2nd 45 minute exercise

  9. Changes in slosh sensation

    To determine if proprietary water has any effect on thirst sensation assessed by a 9-point scale on Slosh Sensation, compared to an active comparator and placebo. The min score is 1 and the max score is 9, with higher scores associated with worse outcomes.

    Measured: Every morning of the 5 free living days and on the heat stress day time points; TP 2 (60 minutes). TP 3 (105 minutes). TP 4 (125 minutes). TP 5 (165 minutes). TP 6 (195 minutes). TP 7 (225 minutes). 22:30 minute into 1st and 2nd 45 minute exercise

  10. Changes in rating of perceived exertion

    To determine if proprietary water has any effect on thirst sensation assessed by Borgs RPE Scale, compared to an active comparator and placebo. The min score is 6 and the max score is 20, with higher scores associated with worse outcomes.

    Measured: Every morning of the 5 free living days and on the heat stress day time points; TP 2 (60 minutes). TP 3 (105 minutes). TP 4 (125 minutes). TP 5 (165 minutes). TP 6 (195 minutes). TP 7 (225 minutes). 22:30 minute into 1st and 2nd 45 minute exercise

  11. Changes in tension

    To determine if the proprietary water has an impact on tension-anxiety (POMS sub-score) compared to placebo and active comparator. Min 0, max 36, higher scores are associated with worse outcomes.

    Measured: Every morning of the 5 free living days and on the heat stress day time points; TP 2 (60 minutes). TP 3 (105 minutes). TP 4 (125 minutes). TP 5 (165 minutes). TP 6 (195 minutes). TP 7 (225 minutes).

  12. Changes in fatigue

    To determine if the proprietary water has an impact on fatigue (POMS sub-score) compared to placebo and active comparator. Min 0, max 28, higher scores are associated with worse outcomes.

    Measured: Every morning of the 5 free living days and on the heat stress day time points; TP 2 (60 minutes). TP 3 (105 minutes). TP 4 (125 minutes). TP 5 (165 minutes). TP 6 (195 minutes). TP 7 (225 minutes).

  13. Changes in anger

    To determine if the proprietary water has an impact on anger (POMS sub-score) compared to placebo and active comparator. Min 0, max 48, and higher scores are associated with worse outcomes.

    Measured: Every morning of the 5 free living days and on the heat stress day time points; TP 2 (60 minutes). TP 3 (105 minutes). TP 4 (125 minutes). TP 5 (165 minutes). TP 6 (195 minutes). TP 7 (225 minutes).

  14. Changes in depression

    To determine if the proprietary water has an impact on depression (POMS sub-score) compared to placebo and active comparator. Min 0, max 60, higher scores are associated with worse outcomes.

    Measured: Every morning of the 5 free living days and on the heat stress day time points; TP 2 (60 minutes). TP 3 (105 minutes). TP 4 (125 minutes). TP 5 (165 minutes). TP 6 (195 minutes). TP 7 (225 minutes).

  15. Changes in antidiuretic hormone (ADH)

    To determine if proprietary water has any effect on antidiuretic hormone (ADH) compared to an active comparator and placebo.

    Measured: On heat stress environment day. TP 2 (60 minutes).TP 5 (165 minutes). TP 7 (225 minutes).

  16. Changes in cortisol

    To determine if proprietary water has any effect on cortisol compared to an active comparator and placebo.

    Measured: On heat stress environment day. TP 2 (60 minutes).TP 5 (165 minutes). TP 7 (225 minutes).

  17. Changes in lactate

    To determine if proprietary water has any effect on lactate compared to an active comparator and placebo.

    Measured: On heat stress environment day. TP 2 (60 minutes).TP 5 (165 minutes). TP 7 (225 minutes).

Secondary outcomes (3)
  1. Changes in object hit and avoid

    To determine if proprietary water has any effect on cognitive task of "object hit and avoid" compared to an active comparator and placebo.

    Measured: Baseline day 0 and on heat stress environment day 5 timepoints: TP 1 (0 minute). TP 3 (105 minutes). TP 5(165 minutes).

  2. Changes in trail making task

    To determine if proprietary water has any effect on cognitive task of "trail making task" compared to an active comparator and placebo.

    Measured: Baseline day 0 and on heat stress environment day 5 timepoints: TP 1 (0 minute). TP 3 (105 minutes). TP 5(165 minutes).

  3. Changes in N-Back task

    To determine if proprietary water has any effect on cognitive task of "N-Back Task" compared to an active comparator and placebo.

    Measured: Baseline day 0 and on heat stress environment day 5 timepoints: TP 1 (0 minute). TP 3 (105 minutes). TP 5(165 minutes).

Timeline

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

  1. First posted11 Jul 2022
  2. Study start15 Jul 2022
  3. Primary completion15 Dec 2022
  4. Study completion5 Apr 2023

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
Other
Allocation
Randomised
Intervention model
Parallel groups
Model description
Between subjects, single-blind
Masking
Single blind
Who is masked
Participant
Enrolment
47 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05451446
Sponsor's protocol ID
Pro00112790
Status last verified
Apr 2023
First submitted
7 Jun 2022
Last updated
11 Apr 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing proprietary water and Active comparator in people with Hydration and Dehydration, run by University of South Carolina 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 1 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 11 Apr 2023. 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 plasma osmolality as a marker of hydration status. (time frame: On heat stress environment day. TP 2 (60 minutes).TP 5 (165 minutes). TP 7 (225 minutes).). The study lists 17 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 Apr 2023.

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