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 (part of PepsiCo, Inc.) · 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.
3,965 studies on the registry are indexed under Alzheimer Disease; 926 are open to participants now.
This study's planned enrollment of 200 is close to the median of 200 across 814 observational studies indexed under Alzheimer Disease.
Browse Alzheimer Disease studies →PepsiCo Global R&D is the lead sponsor of 103 studies on the registry; 8 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Activity tracker-wearing adult
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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
No publications or documents are linked to this record.
Started May 2025 (actual). Primary completion is estimated for Dec 2025, 7 months after the start.
Of 41 industry-sponsored observational studies under Alzheimer Disease, half reached primary completion within 34 months of starting (the median), counting those still running; a quarter within 20 and three quarters within 63. This study's planned 7 months is below that.
Counting every sponsor, half of 405 studies reached it within 67 months; a quarter within 35 and three quarters within 171.
How these figures are worked out, and which studies are left out of them.
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