An observational study in Hydration, sponsored by PepsiCo Global R&D. Recruiting at 1 site in United States. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-06-05.
Sponsored by PepsiCo Global R&D · Observational
This remote study will evaluate the feasibility of using the Gatorade Sports Science Institute (GSSI) Labs App for remotely collecting hydration related outcomes.
The primary objective is to understand user engagement and feasibility of remotely collecting subjective and self-reported markers of hydration status as well as markers of hydration using transdermal optical imaging (TOI) within the Gatorade Sports Science Institute (GSSI) branded mobile application (adherence and dropout rates, and differences between demographics). The secondary objective is to understand the within subject variability of TOI features before and after acute fluid ingestion during remote data collection.
Tertiary objectives are to compare self-reported measures of hydration status against the TOI hydration model prediction before and after acute fluid ingestion during remote data collection.
An outside service was contracted for recruiting. Please do not contact the investigator to express interest.
Activity tracker-wearing adult
Exclusion Criteria:
Male or female 18-65 who wears their own activity tracker daily
Other: Hydration assessment via mobile app
Open the Gatorade Sports Science Institute (GSSI) branded mobile application and click on 'Complete Hydration Assessment'
User engagement and feasibility: Subjective and self-reported markers of hydration status
Understand user engagement and feasibility of remotely collecting subjective and self-reported markers of hydration status
Time frame: At two identical 2-hour study sessions with at least one full day and a maximum of 6 days in between study sessions
User engagement and feasibility: Markers of hydration using transdermal optical imaging (TOI)
Understand user engagement and feasibility of remotely collecting markers of hydration using transdermal optical imaging (TOI)
Time frame: At two identical 2-hour study sessions with at least one full day and a maximum of 6 days in between study sessions
Understand the within subject variability of TOI features before and after acute fluid ingestion during remote data collection
Within subject variation in the tertiary outcomes listed in Other Pre-specified Outcomes 4-7
Time frame: At two identical 2-hour study sessions with at least one full day and a maximum of 6 days in between study sessions
Self-reported measure of hydration status: Body mass
Home scale body mass, against the TOI hydration model prediction
Time frame: Before and after acute fluid ingestion during remote data collection at two identical 2-hour study sessions with at least one full day and a maximum of 6 days in between study sessions
Self-reported measure of hydration status: Urine color
Urine color against the TOI hydration model prediction rated from very pale yellow to brown on a 7-color chart, against the TOI hydration model prediction
Time frame: Before and after acute fluid ingestion during remote data collection at two identical 2-hour study sessions with at least one full day and a maximum of 6 days in between study sessions
Self-reported measure of hydration status: Perceived thirst
Thirst rating in the app using a 7-point categorical scale, against the TOI hydration model prediction
Time frame: Before and after acute fluid ingestion during remote data collection at two identical 2-hour study sessions with at least one full day and a maximum of 6 days in between study sessions
Self-reported measure of hydration status: Feeling hydrated
Within the app, select Yes or No as to whether feeling sufficiently hydrated or not, against the TOI hydration model prediction
Time frame: Before and after acute fluid ingestion during remote data collection at two identical 2-hour study sessions with at least one full day and a maximum of 6 days in between study sessions
Plan to share: No
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PepsiCo Global R&D