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Assessing the Effect of Cool Roofs on Health Using Smartwatches

Study acronym: REFLECT
StatusActive, Not Recruiting
PhaseNot applicable
Started
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Record History

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  1. Primary and study completion dates: Jan 31, 2026 to Sep 1, 2027
    • Trial status: Recruiting to Active, Not Recruiting
    • Site details revised at 4 of 4 sites
    v3
  2. Trial status: Not Yet Recruiting to Recruitingv2 Show 4 more changesShow less
    • Study sites: 0 to 4
    • Start date changed from estimate of Sep 2, 2024 to Sep 4, 2024
    • Secondary endpoints: details revised at 1 of 9 entries
    • Study title shortened, about 4 words
  3. Study First Submitted
  • Stopped: an ongoing trial was terminated, suspended or withdrawn.
  • Notable: the trial’s plan changed such as a big move in its timeline or size, a new primary endpoint, sponsor or phase, or recruiting opened or resumed.
  • Minor: routine progress and housekeeping, such as sites added or enrollment closed.
Ambient air temperatures in Asian, Latin American, African, and Pacific climate hotspots have broken record highs in 2024. Solutions are needed to build heat resilience in communities and adapt to increasing heat from climate change. Sunlight-reflecting cool roof coatings may passively reduce indoor temperatures and energy use to protect home occupants from extreme heat. Occupants living in poor housing conditions globally - for example in informal settlements, slums, and low-socioeconomic households - are susceptible to increased heat exposure. Heat exposure can instigate and worsen numerous physical, mental and social health conditions. The worst adverse health effects are experienced in communities that are least able to adapt to heat exposure. By reducing indoor temperatures, cool roof application may improve heart health, sleep and physical activity in household occupants. The long-term research goal is to identify viable passive housing adaptation technologies with proven health benefits to reduce the burden of heat stress in communities affected by heat globally. To meet this goal, the investigators will use smartwatches to measure the effects cool roof application on heart health, sleep and physical activity in four urban climate hotspots: Ouagadougou, Burkina Faso; Hermosillo, Mexico; Ahmedabad, India; and Niue, Oceania.
Trial Details
NCT Number NCT06579963
Lead Sponsor Aditi Bunker
Collaborators: Sika Services AG, SOPREMA, Engineered Polymer Solutions (EPS B.V.), Resene, Pacific Community, Habitat for Humanity, The Tindall Foundation, Labfront, Instituto Tecnológico de Hermosillo, University of Ouagadougou, Burkina Faso, Indian Institute of Public Health, India, Boston University, Rutgers University, London School of Hygiene and Tropical Medicine, Heidelberg University
Conditions
(from sponsor)		 Heart Rate, All-day Steps, Distance Walked, Active Minutes, Moderate-intensity Activity Minutes, Vigorous-intensity Activity Duration, Sleep Quantity, Time in Sleep Stages +2 more
Related terms Heat Stress Disorders, Motor Activity
Enrollment 800 participants
Start Date
Primary Completion (estimated)
Study Completion (estimated)
Updated on ClinicalTrials.gov