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Low-Cost cooling and advice could save lives in heatwaves

NCT ID NCT06991543

Knowledge-focused Sponsor: Aga Khan University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether affordable home improvements like reflective roof paint, shade, and better airflow, combined with community education, can reduce heat-related illnesses and improve quality of life. Over 7,000 households in low-income Karachi neighborhoods will participate, with some receiving interventions and others serving as comparisons. Researchers will track health, indoor temperatures, and sleep to find practical ways to help communities cope with extreme heat.

What this could mean

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

Active substance
Community education and home cooling modifications (reflective roof paint, shade, airflow improvements)
What this could lead to
If successful, this could provide affordable, scalable strategies to protect vulnerable communities from extreme heat and improve daily life.
What could go wrong
This is an early-stage observational trial, not a drug study. Results may not apply to other cities or climates, and behavior change can be hard to sustain.

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 7,128 people

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

Started

Jan 2026

Expected to finish

Dec 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

Children (under 18), adults (18 to 64) and older adults (65 and over)

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: * All households within the selected clusters who provide consent. Exclusion Criteria: * Households planning to move away from the study site within the next 6 months * Individuals with severe mental or physical health conditions that preclude participation

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Conditions

The condition(s) this trial relates to.

Heat Stress Disorders

As listed by the trial registrant

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

Heat illness Quality of life

How to take part

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

  1. The places running it

    1 site. 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

  • Bilal Colony

    RECRUITING

    Karachi, Pakistan

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