Solar Lighting to Reduce Indoor Air Pollution in Rural Uganda

NCT ID: NCT03351504

Last Updated: 2025-02-07

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

80 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-02-07

Study Completion Date

2020-10-31

Brief Summary

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This study evaluates the impact of a solar lighting system on kerosene lamp use, levels of indoor air pollution, and health in women living in rural Uganda. Half of the participants will receive the lighting systems immediately, while the other half will receive them after an 18 month delay.

Detailed Description

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One fifth of the global population relies on kerosene lamps for lighting, yet few studies have focused on kerosene lighting as a source of indoor air pollution. In our preliminary studies performed in Uganda, we show that homes using solar lighting have much lower levels of indoor air pollution compared to homes using kerosene lighting. The primary goal of this study is to determine the extent to which solar lighting will reduce kerosene use and indoor air pollution in rural Uganda, whether this intervention improves lung health, and to identify the role bacteria in our gut have on determining whether or not people will get sick from indoor air pollution.

Conditions

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Pollution; Exposure Hypertension Pollution Related Respiratory Disorder

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors
Randomization will be performed using dummy codes to represent intervention and control groups by an independent statistician; blinding of the intervention to the participants and field team is not possible, but data analysis will take place prior to unblinding.

Study Groups

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Control (usual lighting)

Participants will continue to use their usual lighting sources.

Group Type NO_INTERVENTION

No interventions assigned to this group

Intervention (solar lighting)

Participants will receive an indoor solar lighting system

Group Type EXPERIMENTAL

Solar lighting system

Intervention Type OTHER

consisting of a solar panel, rechargeable lead acid battery, charge controller, wiring and switches to 4 lighting points fitted with LED bulbs. This system will include a two-year service warranty.

Interventions

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Solar lighting system

consisting of a solar panel, rechargeable lead acid battery, charge controller, wiring and switches to 4 lighting points fitted with LED bulbs. This system will include a two-year service warranty.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Women living in Nyakabare Parish, Uganda with no prior history of chronic lung disease

Exclusion Criteria

* Current active tuberculosis in any family member
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Mbarara University of Science and Technology

OTHER

Sponsor Role collaborator

Harvard School of Public Health (HSPH)

OTHER

Sponsor Role collaborator

Massachusetts General Hospital

OTHER

Sponsor Role lead

Responsible Party

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Peggy S Lai

Assistant Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Peggy S Lai, MD MPH

Role: PRINCIPAL_INVESTIGATOR

Massachusetts General Hospital

Locations

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Massachusetts General Hospital

Boston, Massachusetts, United States

Site Status

Mbarara University of Science and Technology

Mbarara, , Uganda

Site Status

Countries

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United States Uganda

References

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Huang CY, Nuwagira E, Tisza M, Kim M, Tayebwa M, Vieira J, Lam N, Wallach E, Wiens M, Tsai AC, Valeri L, Vallarino J, Allen JG, Lai PS. Effect of household air pollution on the gut microbiome and virome of adult women living in Uganda. Environ Health Perspect. 2025 May 21. doi: 10.1289/EHP16002. Online ahead of print.

Reference Type DERIVED
PMID: 40397799 (View on PubMed)

Ponticiello M, Nuwagira E, Tayebwa M, Mugerwa J, Nahabwe H, Nakasita C, Tumuhimbise JB, Lam NL, Wiens MO, Vallarino J, Allen JG, Muyanja D, Tsai AC, Sundararajan R, Lai PS. "If you have light, your heart will be at peace": A qualitative study of household lighting and social integration in southwestern Uganda. J Glob Health. 2023 Apr 14;13:04026. doi: 10.7189/jogh.13.04026.

Reference Type DERIVED
PMID: 37052216 (View on PubMed)

Wallach ES, Lam NL, Nuwagira E, Muyanja D, Tayebwa M, Valeri L, Tsai AC, Vallarino J, Allen JG, Lai PS. Effect of a solar lighting intervention on fuel-based lighting use and exposure to household air pollution in rural Uganda: A randomized controlled trial. Indoor Air. 2022 Feb;32(2):e12986. doi: 10.1111/ina.12986.

Reference Type DERIVED
PMID: 35225388 (View on PubMed)

Other Identifiers

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2017P000306/PHS

Identifier Type: -

Identifier Source: org_study_id

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