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DehydrationNCT03559101

Effects of Amino Acid/Electrolyte-based Beverages on Hydration Status

A study testing Distilled water, Medical Food 1 and Medical Food 2 in people with Dehydration, run by W. Larry Kenney 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

Older adults typically do not drink later in the day to avoid the necessity of interrupting sleep to urinate. Sometimes they also limit ingestion of fluids to avoid the need to urinate when engaged in certain activities such as traveling or attending an event. Read more about this study

Who is it for?
Ages 18 to 90 yearsHealthy volunteers can take part
Conditions the study is for
Dehydration
What is being tested?
Distilled water, Medical Food 1 and Medical Food 2
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
32 participants
Where
1 siteUnited States
Study dates
25 May 2017to 18 Dec 2017
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 90 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • 18-30 years or ≥60 years

Who cannot join

  • cardiovascular, renal, or digestive diseases
  • pregnancy
  • breastfeeding
  • smoking and/or use of nicotine-containing products
  • illegal/recreational drug use
  • medications that alter fluid balance (e.g., diuretics)
  • allergy to Latex
  • men with prostate issues that interfere with urination.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Pennsylvania State University

    University Park, Pennsylvania, 16802

Other trials in United States

About this study

Official title: Characterization of the Effects of Amino Acid/Electrolyte-based Beverages on Hydration Status in Young and Older Subjects

Older adults typically do not drink later in the day to avoid the necessity of interrupting sleep to urinate. Sometimes they also limit ingestion of fluids to avoid the need to urinate when engaged in certain activities such as traveling or attending an event. Therefore, beverages that have greater fluid retention in the body leading to a more sustained positive hydration status could be advantageous in such situations. The composition of a beverage as well as other factors such as volume ingested and metabolism of components can affect the retention of the fluid in the body. Age may be another factor. The beverage hydration index (BHI), first described in 2016, was used to indicate the hydration response to thirteen well-known beverages in young male adults. The current study assesses the BHI of four beverages and how that response is affected by age following the standardized protocol. The four beverages have been chosen for inclusion in this study because they have been used by older adults to prevent dehydration.

Read the detailed description

Subjects sign an informed consent form and undergo a medical screening prior to participation. The screening includes a physical exam, anthropometry, chemical and lipid profiles, as well as measures of liver and renal function. The subjects are assigned to one of two groups based upon age.

Subjects participate in five experimental trials, one for each of the five beverages. The beverages are commercially-available and contain ingredients that are generally recognized as safe (GRAS). The order of the beverages is randomized. The list of ingredients on the bottle containing the beverage is obscured. The trials are identical and separated by at least five days. For each experiment, baseline measurements are conducted. Then the subjects consume one liter of the test beverage over thirty minutes. Additional measurements are performed thirty minutes post ingestion and then every hour for four hours post ingestion.

This study yields two BHI numbers for each beverage, one number for each study-group. The BHI numbers are indicative of the amount of fluid remaining in the body four hours after consumption of the beverage. The BHI number is inversely related to the amount of urine produced over the four hours. A greater BHI number indicates better fluid retention and maintenance of plasma volume.

Conditions
Dehydration
Being tested
Distilled water, Medical Food 1, Medical Food 2, Pedialyte, Gatorade
Keywords
Hydration, Plasma Volume, Amino acids, Glucose, Electrolytes, Fluid Retention, Aging, Beverage Hydration Index, Dehydration, Oral Rehydration
Medical subject headings
Dehydration

What participants receive

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

  • Distilled waterOther

    Commercially available beverage

    Subjects collect all morning urine and drink 500 milliliters of water. Baseline vital measurements (heart rate, blood pressure, oral temperature) and body weight collected Baseline blood samples and urine collected Beverage pretreatment consumed (1 liter over 30 minutes) Body weight measured and blood and urine collected at 5 minutes, 10 minutes, 15 minutes, and then every 30 minutes for 4 hours post beverage consumption

  • Medical Food 1Other

    Commercially available beverage

    Subjects collect all morning urine and drink 500 milliliters of water. Baseline vital measurements (heart rate, blood pressure, oral temperature) and body weight collected Baseline blood samples and urine collected Beverage pretreatment consumed (1 liter over 30 minutes) Body weight measured and blood and urine collected at 5 minutes, 10 minutes, 15 minutes, and then every 30 minutes for 4 hours post beverage consumption

  • Medical Food 2Other

    Commercially available beverage

    Subjects collect all morning urine and drink 500 milliliters of water. Baseline vital measurements (heart rate, blood pressure, oral temperature) and body weight collected Baseline blood samples and urine collected Beverage pretreatment consumed (1 liter over 30 minutes) Body weight measured and blood and urine collected at 5 minutes, 10 minutes, 15 minutes, and then every 30 minutes for 4 hours post beverage consumption

  • PedialyteOther

    Commercially available beverage

    Subjects collect all morning urine and drink 500 milliliters of water. Baseline vital measurements (heart rate, blood pressure, oral temperature) and body weight collected Baseline blood samples and urine collected Beverage pretreatment consumed (1 liter over 30 minutes) Body weight measured and blood and urine collected at 5 minutes, 10 minutes, 15 minutes, and then every 30 minutes for 4 hours post beverage consumption

  • GatoradeOther

    Commercially available beverage

    Subjects collect all morning urine and drink 500 milliliters of water. Baseline vital measurements (heart rate, blood pressure, oral temperature) and body weight collected Baseline blood samples and urine collected Beverage pretreatment consumed (1 liter over 30 minutes) Body weight measured and blood and urine collected at 5 minutes, 10 minutes, 15 minutes, and then every 30 minutes for 4 hours post beverage consumption

Study groups in NCT03559101
Study groupRoleWhat they receive
Beverage 1 - ControlActive comparatorDistilled Water
Receives: Other: Distilled water
Beverage 2ExperimentalMedical Food 1 (8 amino acids, 60 mmol/L Na, 20 mmol/L K + citrate, Cl)
Receives: Other: Medical Food 1
Beverage 3ExperimentalMedical Food 2 (8 amino acids, 30 mmol/L Na, 10 mmol/L K + citrate, Cl)
Receives: Other: Medical Food 2
Beverage 4ExperimentalPedialyte
Receives: Other: Pedialyte
Beverage 5ExperimentalGatorade
Receives: Other: Gatorade

What is being measured

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

  1. Beverage hydration index (BHI)

    Indicative of amount of fluid remaining in body four hours post consumption of beverage. Inversely related to amount of urine produced over 4 hours. Larger BHI number indicates better fluid retention and maintenance of plasma volume.

    Measured: One BHI for each beverage for each age group is calculated and reported through study completion, an average of 1 year.

Secondary outcomes (2)
  1. Body Mass

    Body weight measured on scale

    Measured: Baseline before consumption of beverage and then 5 minutes, 10 minutes, 15 minutes, and then every 30 minutes for 4 hours post beverage consumption

  2. Urine Mass

    Weight of urine produced

    Measured: Baseline before consumption of beverage and then 5 minutes, 10 minutes, 15 minutes, and then every 30 minutes for 4 hours post beverage consumption

Timeline

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

  1. First posted15 Jun 2018
  2. Study start25 May 2017
  3. Primary completion18 Dec 2017
  4. Study completion18 Dec 2017

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
Two groups of subjects (young, older) participate in five experiments, one for each of five beverage pretreatments. Pretreatments are consumed immediately prior to the experiment. The experiments are conducted in randomized order. The trials are identical and separated by at least five days.
Masking
Double blind
Who is masked
Investigator, Outcomes assessor
Enrolment
32 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03559101
Sponsor's protocol ID
STUDY6412
Status last verified
Jun 2018
First submitted
22 May 2018
Last updated
15 Jun 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Clarke MM, Stanhewicz AE, Wolf ST, Cheuvront SN, Kenefick RW, Kenney WL. A randomized trial to assess beverage hydration index in healthy older adults. Am J Clin Nutr. 2019 Jun 1;109(6):1640-1647. doi: 10.1093/ajcn/nqz009.

    PubMed 31051498

Questions about this trial

What is this clinical trial studying?

A study testing Distilled water, Medical Food 1 and Medical Food 2 in people with Dehydration, run by W. Larry Kenney 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 15 Jun 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. 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?

Beverage hydration index (BHI) (time frame: One BHI for each beverage for each age group is calculated and reported through study completion, an average of 1 year.). 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 NCT03559101, 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 15 Jun 2018.

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