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OpenTrials
Enrolling by Invitation

NCT Number: NCT07197216

Evaluation of the Tap Trust Intervention on Water Security Experiences and Beverage Intake

The primary aim of this clinical trial is to determine whether the Tap Trust intervention increases water intake among preschool-aged children and their parents/caregivers by improving families' experiences with their home tap water.

Enrolling by Invitation

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Key information

Conditions

Beverage Intake Child Health and Nutrition

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Stanford University

Stanford, California, 94305-5119, United States

Who can participate

Healthy volunteers accepted: Yes

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

Inclusion criteria

  • Parents/caregivers of pre-school aged children from the Healthy Drinks, Healthy Futures study childcare centers that did not receive the program.
  • Parents/caregivers must speak English or Spanish.
  • Parents/caregivers of preschool-age children who don't have health conditions that preclude intake of water.

Exclusion criteria

Parents/caregivers who do not meet the inclusion criteria

Treatment and study plan

Tap Trust

Behavioral

Home-based intervention includes tap water testing kits (instructions provided with videos or phone/Zoom), filtration devices if water quality concerns are identified, reusable water bottles and educational materials (handouts and videos), and phone/Zoom sessions with the research team using motivational interviewing.

Primary outcomes

  1. Change in child total plain water intake (oz/day)

    Time frame: Baseline and 6 months post-intervention

    Child total plain water intake assessed via validated beverage frequency questionnaires

Secondary outcomes

  1. Change in child unfiltered tap water intake (oz/day)

    Time frame: Baseline and 6 months post-intervention

    Child unfiltered tap water intake via validated beverage frequency questionnaires

  2. Change in child filtered tap water intake (oz/day)

    Time frame: Baseline and 6 months post-intervention

    Child filtered tap water intake via validated beverage frequency questionnaires

  3. Change in child bottled water intake (oz/day)

    Time frame: Baseline and 6 months post-intervention

    Child bottled water intake via validated beverage frequency questionnaires

  4. Change in child sugar-sweetened beverages (SSB) intake (oz/day)

    Time frame: Baseline and 6 months post-intervention

    Child SSB intake via validated beverage frequency questionnaires

  5. Change in parent/caregiver total plain water intake (oz/day)

    Time frame: Baseline and 6 months post-intervention

    Parent/caregiver total plain water intake assessed via validated beverage frequency questionnaires

  6. Change in parent/caregiver unfiltered tap water intake (oz/day)

    Time frame: Baseline and 6 months post-intervention

    Parent/caregiver unfiltered tap water intake via validated beverage frequency questionnaires

  7. Change in parent/caregiver filtered water intake (oz/day)

    Time frame: Baseline and 6 months post-intervention

    Parent/caregiver filtered water intake via validated beverage frequency questionnaires

  8. Change in parent/caregiver bottled water intake (oz/day)

    Time frame: Baseline and 6 months post-intervention

    Parent/caregiver bottled water intake via validated beverage frequency questionnaires

  9. Change in parent/caregiver SSB intake (oz/day)

    Time frame: Baseline and 6 months post-intervention

    Parent/caregiver SSB intake via validated beverage frequency questionnaires

  10. Change in parent/caregiver experience of home water security

    Time frame: Baseline and 6 months post-intervention

    Parent/caregiver-reported experiences using home tap water, including ratings of taste, odor, appearance, and smell from questionnaires

Sponsors and collaborators

Lead sponsor

Stanford University

Other

Registry information

Important dates

Study start
2025
Primary completion
2027
Study completion
2027
First posted
Sep 29, 2025
Registry last updated
Nov 12, 2025

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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