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Clean stoves for pregnant women may prevent low birth weight and pneumonia

NCT ID NCT02944682

Prevention Sponsor: Emory University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether giving pregnant women in India, Guatemala, Peru, and Rwanda a clean-burning liquefied petroleum gas (LPG) stove and free fuel for 18 months could improve health outcomes for their babies. Over 3,600 households participated, with half receiving the LPG stove and the other half continuing to use traditional biomass stoves. Researchers tracked birth weight, pneumonia, and growth in the first year of life, as well as blood pressure in older women in the household.

What this could mean

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

Active substance
Liquefied petroleum gas (LPG) cookstove and fuel supply
What this could lead to
If successful, this could show that replacing smoky biomass stoves with clean LPG stoves during pregnancy and infancy reduces low birth weight, severe pneumonia, and stunting.
What could go wrong
The trial is complete, but results may not apply to all settings. The intervention is free and supported, so real-world use might be lower. The outcomes depend on consistent exclusive use of the LPG stove.

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

3,640 people

The number who actually took part.

Started

Sep 2017

Finished

Jun 2025

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 to 79 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 for Pregnant Women: * Confirmed pregnancy (hCG positive blood or urine test) * Aged 18 to \<35 years (via self-report) * Uses biomass stove predominantly * Lives in study area * 9 - \<20 weeks gestation confirmed by ultrasound * Singleton pregnancy (one fetus) * Viable fetus with normal fetal heart rate (120-180 beats per minute) at time of ultrasound * Continued pregnancy at the time of randomization confirmed by self-report * Agrees to participate with informed consent Exclusion Criteria for Pregnant Women: * Currently smokes cigarettes or other tobacco products * Plans to move permanently outside study area in the next 12 months * Uses LPG stove predominantly, or is likely to use LPG predominantly in the near future Inclusion Criteria for Older Adult Woman in the Same Household: * Aged 40 to \<80 years (via self-report) Exclusion Criteria for Older Adult Woman in the Same Household: * Currently smokes cigarettes or other tobacco products * Pregnant (by self-report) * Plans to move out of her current household in the next 12 months

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Conditions

The condition(s) this trial relates to.

atherosclerosis cardiovascular disorder neoplasm

As listed by the trial registrant

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

Infant, low birth weight

Contacts and locations

Locations

  • Puno Global Non-Communicable Disease Research Site, School of Medicine, Johns Hopkins University

    Puno, Peru

  • Rwanda Research Site, London School of Hygiene and Tropical Medicine, University of Liverpool

    Kigali, Rwanda

  • Sri Ramachandra Institute of Higher Education and Research

    Chennai, Tamil Nadu, 600116, India

  • Universidad del Valle de Guatemala

    Guatemala City, Departamento de Guatemala, 01015, Guatemala

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