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Cool roofs tested to beat the heat in niue

NCT ID NCT06571019

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 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether painting roofs with a special reflective coating can help people in Niue stay healthier as temperatures rise. 187 adults wore smartwatches to track their heart rate, sleep, and physical activity. The goal was to see if cooler homes lead to better heart health, more restful sleep, and more daily movement.

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

187 people

The number who actually took part.

Started

Sep 2024

Finished

Jan 2026

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: Participant criteria: * Consenting adult aged 18 years and over. * Expected to be available to participate in the study for at least nine months in the next 12 months. * Willing and able to wear a smartwatch. Household criteria: * House has a metal roof. * House is single-story. Exclusion Criteria: Participant criteria: * One participant per household * Does not have a smartphone with an internet connection that can connect to the smartwatch. Household criteria: * Unstable house structure that does not permit the application of cool roof materials. * Inaccessible by the research team. * Significant roof damage defined as any penetrative roof defect that results in a hole in the roof OR over 25% of the roof rusted.

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Conditions

The condition(s) this trial relates to.

Heat Stress Disorders Motor Activity

As listed by the trial registrant

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

Active minutes All-day steps Awake duration Distance walked Heart rate Moderate-intensity activity minutes Sleep quantity Sleep score Time in sleep stages Vigorous-intensity activity duration

Contacts and locations

Locations

  • University of Auckland

    Auckland, Niue

More trials for these conditions

Other studies related to the condition(s) this trial covers.