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Cool roofs trial aims to beat the heat and boost health

NCT ID NCT06579950

Disease control Sponsor: Aditi Bunker Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This global study tests whether applying a sunlight-reflecting coating to roofs can lower indoor temperatures and improve health. Researchers will enroll 3,200 households in five hot cities across Africa, Asia, Latin America, and the Pacific. They will measure heart rate, blood sugar, depression, and other health outcomes, as well as indoor comfort and energy costs.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
cool roof coating (sunlight-reflecting paint applied to roofs)
What this could lead to
If it works, this could show that a simple, low-cost roof coating can protect people from heat-related health problems and reduce energy bills.
What could go wrong
This is a large trial, but results depend on local climate, housing conditions, and whether people use the coating correctly. It may not work equally well everywhere.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 3,200 people

The number the study aims to enrol. It can still change while the study runs.

Started

Sep 2024

Expected to finish

Sep 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Permanent household resident. Exclusion Criteria: * Roof damage, inaccessible or instability of roof adversely affecting cool roof coating application. * Participant unable to provide written/verbal informed consent.

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Conditions

The condition(s) this trial relates to.

Aggression cognitive disorder Dehydration Depression depressive disorder diabetes mellitus Heat Stress Disorders insomnia miliaria Personal Satisfaction Psychological Well-Being

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Aggression Blood glucose control Cognition Coping ability Dehydration Depression Diastolic blood pressure Diet quality Food insecurity Health related quality of life Healthcare provider utilization Heat-related symptoms Hospitalization Household energy expenditure Indoor air temperature Indoor heat index Indoor relative humidity Indoor thermal comfort Inner ear canal temperature Life satisfaction Physician diagnosed heat-related illnesses Productivity Resting heart rate Sleep quality Systolic blood pressure

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    2 sites in 2 countries. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Fiji National University

    RECRUITING

    Suva, Fiji

  • Indian Institute of Public Health Gandhinagar

    ACTIVE_NOT_RECRUITING

    Ahmedabad, Gandhinagar, India

  • Instituto Tecnológico de Hermosillo

    NOT_YET_RECRUITING

    Hermosillo, Sanora, Mexico

  • Niue

    ACTIVE_NOT_RECRUITING

    Alofi, Niue

  • University Joseph Ki-Zerbo

    ACTIVE_NOT_RECRUITING

    Ouagadougou, Burkina Faso

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