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NCT Number: NCT07564661

A Clinical Trial to Explore the Efficacy of Two Investigational Products on Post-Exercise Hydration in Recreationally Active Healthy Adults

The goal of this clinical trial is to explore the efficacy of two investigational products for promoting post-exercise hydration in recreationally active healthy adults. The main question it aims to answer is: Does consumption of each investigational product (IP) beverage, compared to control beverages, result in differences in blood hematocrit and serum osmolality at 0.5, 2, 4, and 8 hours post-exercise in recreationally active healthy adults? Researchers will compare two IPs to control beverages to see if the IPs are effective for supporting post-exercise hydration. Participants will be required to consume the IPs, as well as control beverages. Participants will also complete questionnaires, undergo an exercise challenge, and record their food and beverage intake.

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Key information

Conditions

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

KGK Science Inc.

London, Ontario, N5Y 5V6, Canada

Location status: Recruiting

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Males and females between 18 and 65 years of age
  • Females not of child-bearing potential, defined as those who have undergone a sterilization procedure (e.g. hysterectomy, bilateral oophorectomy, bilateral tubal ligation, complete endometrial ablation) or have been post-menopausal for at least 1 year prior to screening Or,

Individuals of child-bearing potential must have a negative baseline urine pregnancy test and agree to use a medically approved method of birth control for the duration of the study. All hormonal birth control must have been in use for a minimum of three months. Acceptable methods of birth control include:

  • Hormonal contraceptives including oral contraceptives, hormone birth control patch (Ortho Evra), vaginal contraceptive ring (NuvaRing), injectable contraceptives (Depo-Provera, Lunelle), or hormone implant (Norplant System)
  • Double-barrier method
  • Intrauterine devices
  • Non-heterosexual lifestyle and agrees to use contraception if planning on changing to heterosexual partner(s)
  • Vasectomy of partner at least 6 months prior to screening
  • Abstinence and agrees to use contraception if planning on becoming sexually active during the study
  • Physically fit for exercise, as assessed by the Physical Activity Readiness Questionnaire (PAR-Q), and is willing and able to complete the exercise challenge throughout the study
  • Self-reported hard or very hard aerobic exercise of ≥30 and ≤150 minutes per week, as assessed by the Stanford 7-Day Physical Activity Recall at screening
  • Agrees to maintain usual physical activity level for the duration of the study and not to engage in vigorous physical activity for at least 24 hours prior to each clinic visit
  • Agrees to abstain from alcohol consumption for at least 48 hours prior to each clinic visit and caffeine consumption and physical exercise on the morning of each study visit
  • Agrees to adhere to the dietary guidelines for the duration of the study, inclusive of the run-in period
  • Agrees to maintain current lifestyle habits (diet, medications, supplements, and sleep) as much as possible throughout the study
  • Willingness to complete questionnaires, records, and diaries associated with the study and to complete all clinic visits
  • Provided voluntary, written, informed consent to participate in the study
  • Healthy as determined by medical history as assessed by the Qualified Investigator (QI)

Exclusion criteria

  • Individuals who are pregnant, breast feeding, or planning to become pregnant during the study
  • Allergy, sensitivity, intolerance, or dietary restriction, including dairy sensitivity/intolerance, preventing consumption of investigational product, comparator/control ingredients, or standardized meal
  • Self-reported unstable weight for the past 3 months defined as having gained or lost more than 5% of body weight prior to baseline
  • Poor venous access as assessed by the QI
  • Unstable metabolic disease or chronic diseases as assessed by the QI
  • Current or history of any significant diseases of the gastrointestinal tract as assessed by the QI
  • Unstable hypertension. Treatment on a stable dose of medication for at least 3 months will be considered by the QI (See Section 7.3)
  • Type I or Type II diabetes and diabetes insipidus
  • Significant cardiovascular event in the past 6 months. Participants with no significant cardiovascular event on stable medication may be included after assessment by the QI on a case-by-case basis
  • History of or current diagnosis with kidney and/or liver diseases as assessed by the QI on a case-by-case basis, with the exception of history of kidney stones in participants who are symptom free for 6 months
  • Self-reported confirmation of current or pre-existing thyroid condition. Treatment on a stable dose of medication for at least 3 months will be considered by the QI
  • Major surgery in the past 3 months or individuals who have planned surgery during the course of the study. Participants with minor surgery will be considered on a case-by-case basis by the QI
  • Cancer, except skin basal cell carcinoma completely excised with no chemotherapy or radiation with a follow up that is negative. Volunteers with cancer in full remission for more than five years after diagnosis are acceptable
  • Individuals with an autoimmune disease or are immune compromised as assessed by the QI
  • Self-reported confirmation of a HIV-, Hepatitis B- and/or C-positive diagnosis as assessed by the QI
  • Self-reported confirmation of blood/bleeding disorders as assessed by the QI
  • Use of prescribed medical cannabinoid products
  • Chronic use of THC products (>2 times/week). Occasional users will be required to washout (3-day washout period) and abstain for the duration of the study period
  • Regular use of tobacco or nicotine products in the past six months, as assessed by the QI. Occasional users will be required to washout and abstain for the duration of the study period
  • Alcohol intake average of >2 standard drinks per day as assessed by the QI
  • Alcohol or drug abuse within the last 12 months
  • Current use of prescribed and/or over-the-counter (OTC) medications, supplements, and/or consumption of food/drinks that may impact the efficacy of the investigational product by altering body water regulation (Sections 7.3.1 and 7.3.2)
  • Blood donation 60 days prior to baseline, during the study, or a planned donation within 30 days of the last study visit
  • Participation in other clinical research studies 30 days prior to baseline, as assessed by the QI
  • Individuals who are cognitively impaired and/or who are unable to give informed consent
  • Any other condition or lifestyle factor, that, in the opinion of the QI, may adversely affect the participant's ability to complete the study or its measures or pose significant risk to the participant

Treatment and study plan

Potassium15

Dietary Supplement

Immediately after exercise, participants will consume one bottle (591 mL) of the study product within 10 minutes and in the presence of clinic staff.

Potassium10

Dietary Supplement

Immediately after exercise, participants will consume one bottle (591 mL) of the study product within 10 minutes and in the presence of clinic staff.

Plain Water

Other

Immediately after exercise, participants will consume one bottle (591 mL) of the study product within 10 minutes and in the presence of clinic staff.

Gatorade Fruit Punch

Other

Immediately after exercise, participants will consume one bottle (591 mL) of the study product within 10 minutes and in the presence of clinic staff.

Primary outcomes

  1. Change in Blood Hematocrit

    Time frame: 0.5-, 2-, 4-, and 8-hours post-exercise from visit 2 to visit 5

    Change in blood hematocrit (L/L) 0.5-, 2-, 4-, and 8-hours post-exercise between each IP beverage and control beverages

  2. Change in Serum Osmolality

    Time frame: 0.5-, 2-, 4-, and 8-hours post-exercise from visit 2 to visit 5

    Change in serum osmolality (mOsm/kg) 0.5-, 2-, 4-, and 8-hours post-exercise between each IP beverage and control beverages

Secondary outcomes

  1. Change in Mean Corpuscular Volume

    Time frame: 0.5-, 2-, 4-, and 8-hours post-exercise from visit 2 to visit 5

    Change in mean corpuscular volume (MCV, fL) at 0.5-, 2-, 4-, and 8-hours post-exercise following ingestion of each IP beverage compared with control beverages (Visits 2-5)

  2. Change in Sodium

    Time frame: 0.5-, 2-, 4-, and 8-hours post-exercise from visit 2 to visit 5

    Change in serum sodium concentration (mmol/L) at 0.5-, 2-, 4-, and 8-hours post-exercise following ingestion of each IP beverage compared with control beverages (Visits 2-5).

  3. Change in Potassium

    Time frame: 0.5-, 2-, 4-, and 8-hours post-exercise from visit 2 to visit 5

    Change in serum potassium concentration (mmol/L) at 0.5-, 2-, 4-, and 8-hours post-exercise following ingestion of each IP beverage compared with control beverages (Visits 2-5).

  4. Change in Blood Urea Nitrogen

    Time frame: 0.5-, 2-, 4-, and 8-hours post-exercise from visit 2 to visit 5

    Change in blood urea nitrogen (mg/dL) at 0.5-, 2-, 4-, and 8-hours post-exercise following ingestion of each IP beverage compared with control beverages (Visits 2-5).

  5. Change in Urine Volume

    Time frame: 0.5-, 2-, 4-, and 8-hours post-exercise from visit 2 to visit 5

    Change in urine volume (mL) at 0.5-, 2-, 4-, and 8-hours post-exercise following ingestion of each IP beverage compared with control beverages (Visits 2-5).

  6. Change in Urine Specific Gravity

    Time frame: 0.5-, 2-, 4-, and 8-hours post-exercise from visit 2 to visit 5

    Change in urine specific gravity at 0.5-, 2-, 4-, and 8-hours post-exercise following ingestion of each IP beverage compared with control beverages (Visits 2-5).

  7. Change in Urine Osmolality

    Time frame: 0.5-, 2-, 4-, and 8-hours post-exercise from visit 2 to visit 5

    Change in urine osmolality (mOsm/kg) at 0.5-, 2-, 4-, and 8-hours post-exercise following ingestion of each IP beverage compared with control beverages (Visits 2-5).

  8. Change in Body Weight

    Time frame: 0.5-, 2-, 4-, and 8-hours post-exercise from visit 2 to visit 5

    Change in body weight (kg) at 0.5-, 2-, 4-, and 8-hours post-exercise following ingestion of each IP beverage compared with control beverages (Visits 2-5).

  9. Change in intracellular water

    Time frame: 0.5-, 2-, 4-, and 8-hours post-exercise from visit 2 to visit 5

    Change in intracellular water (L), assessed by bioelectrical impedance analysis, at 0.5-, 2-, 4-, and 8-hours post-exercise following ingestion of each IP beverage compared with control beverages (Visits 2-5).

  10. Change in extracellular water

    Time frame: 0.5-, 2-, 4-, and 8-hours post-exercise from visit 2 to visit 5

    Change in extracellular water (L), assessed by bioelectrical impedance analysis, at 0.5-, 2-, 4-, and 8-hours post-exercise following ingestion of each IP beverage compared with control beverages (Visits 2-5).

  11. Change in total body water

    Time frame: 0.5-, 2-, 4-, and 8-hours post-exercise from visit 2 to visit 5

    Change in total body water (L), assessed by bioelectrical impedance analysis, at 0.5-, 2-, 4-, and 8-hours post-exercise following ingestion of each IP beverage compared with control beverages (Visits 2-5).

Other outcomes

  1. Incidence of post-emergent adverse events (AE)

    Time frame: From screening (Day -45 to Day -7) through final study visit (Visit 5)

    Incidence of post-emergent adverse events (AE)

  2. Clinically relevant changes in vital signs (blood pressure (systolic and diastolic)) and heart rate after supplementation

    Time frame: From screening (Day -45 to Day -7) through final study visit (Visit 5)

    Change in systolic blood pressure (mmHg), diastolic blood pressure (mmHg), and heart rate (beats per minute) from screening through final study visit following supplementation.

Study contacts

Contact information is provided by the study sponsor or research team.

Erin Lewis, PhD

CONTACT

[email protected]

1-226-242-4551 ext. 248

Sponsors and collaborators

Lead sponsor

Chobani

Industry

Collaborators

  • KGK Science Inc.

Registry information

Official study title

A Randomized, Triple-Blind, Comparator-Controlled, Cross-Over Clinical Trial to Explore the Efficacy of Two Investigational Products on Post-Exercise Hydration in Recreationally Active Healthy Adults

Important dates

Study start
2026
Primary completion
2026
Study completion
2026
First posted
May 4, 2026
Registry last updated
Jul 8, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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