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Boston study tests free AC and power subsidies to protect seniors from heat

NCT ID NCT06982339

Disease control Sponsor: Harvard School of Public Health (HSPH) 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 is testing whether giving air conditioners and a $100 electricity subsidy to older adults in Boston neighborhoods can reduce heat stress, heat strain, and related health problems. One hundred participants aged 55-95 who don't have AC will be randomly assigned to receive the intervention in either the first or second summer. Researchers will track indoor temperatures, AC use, and health via surveys.

What this could mean

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

Active substance
Air conditioner and electricity subsidy
What this could lead to
If successful, this could show that providing air conditioners and financial help with electricity costs reduces heat-related health problems in older adults.
What could go wrong
This is a small, early-stage study with 100 participants in specific Boston neighborhoods, so results may not apply broadly. Heat stress is measured by surveys, not clinical outcomes.

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 100 people

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

Started

May 2025

Expected to finish

Oct 2026

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

55 to 95 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * reside in Roxbury, Dorchester, East Boston or Mattapan MA * age 55-95 years old * speak English or Spanish * do not have air conditioning in the home * living with at least one of the following conditions: chronic CVD (hypertension, hyperlipidemia, diabetes, history of stroke or myocardial infarction, atrial fibrillation, or heart failure), chronic pulmonary disease (asthma, COPD/emphysema, interstitial lung disease), chronic neurologic disease (stroke, Parkinson's disease, or other chronic neurologic conditions), chronic mental health conditions (including anxiety disorder, major depression, bipolar disorder), and/or history of hospitalization (defined as spending at least one night in the hospital) for any reason within the past three years. Exclusion Criteria: \- Lack a location in their home suitable for installation of the AC unit provided during the research study.

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Conditions

The condition(s) this trial relates to.

cardiovascular disorder chronic obstructive pulmonary disease Heat Exhaustion Heat Stress Disorders Heat Stroke

As listed by the trial registrant

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

Heat effect Heat exposure Heat strain Heat stress Heat stroke, heat exhaustion Hot weather; adverse effect

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

  • Harvard TH Chan School of Public Health

    RECRUITING

    Boston, Massachusetts, 02215, United States

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