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California child care centers cut pesticide risks in landmark study

NCT ID NCT03319927

Prevention Sponsor: University of California, San Francisco Source: ClinicalTrials.gov ↗

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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 Results may not be published yet.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
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Expanded access (paused)
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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
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Status unknown
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First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested a program to reduce pesticide exposure in 85 California child care centers serving preschool children. Researchers taught staff safer pest control methods and measured changes in pesticide levels in dust and children's wristbands. The goal was to lower children's contact with harmful chemicals.

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

987 people

The number who actually took part.

Started

Oct 2017

Finished

Aug 2024

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

3 to 75 years

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: The centers must meet the following criteria: 1. Be a licensed child care center with a child care director who speaks English 2. Used pesticides (i.e., baits or sprays) in the last year 3. Operated for at least two years with no plans to close in the next 12 months 4. Enroll children between three to five years of age of diverse ethnic and racial backgrounds 5. Have at least 25% of enrolled children receiving a government subsidy (e.g., Child and Adult Care Food Program (CACFP), Head Start, Child Care Development Fund, Alternative Payment program). 6. Have a carpet or couch on-site. The child care providers must meet the following criteria: 1. Work in the participating child care centers 2. Work in the classroom of the participating children 3. Work at least 30 hours a week 4. Plan to work at the center over the next 9 months The families must have a preschool-age child enrolled in the participating child care center and meet the following criteria: 1. Three or four years of age 2. The child spends at least six hours per day in the center 3. Will be enrolled in the center for the next nine months 4. Has a parent present during enrollment who speaks either English or Spanish 5. Parents will complete surveys or interviews in English or Spanish in the Fall and Spring Exclusion Criteria: 1. Centers that participated in an IPM intervention and training project 2. Families that have children who have special health care needs or disabilities who can not participate in physical activity at the child care center. 3. Center directors who do not read and write in English. 4. Child care providers who do not read and write in English.

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Conditions

The condition(s) this trial relates to.

Risk Reduction Behavior

As listed by the trial registrant

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

Children, only Environmental exposure Risk reduction

Contacts and locations

Locations

  • University of California, San Francisco

    San Francisco, California, 94143, United States

More trials for these conditions

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