Recruiting

Our Voice

Sponsor:

Stanford University

Code:

NCT07713264

Conditions

Air Pollution Exposure

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Accepted

Interventions

Receive education on heat and air quality health risks

Participate in Photovoice and climate health risk education

Study Details

Brief summary:

The goal for this multidisciplinary randomized controlled trial (RCT) is to actively and meaningfully engage outdoor workers (can include agricultural workers, construction workers, landscaping, wildland firefighters, fire cleanup crews, etc.) and community members in describing the impact of climate change on their lives and working conditions in San Joaquin Valley, Kings County, and Monterey County. Participants will be randomly assigned to one of two study arms: (1) the Intervention Group, which will receive bilingual (Spanish and English) Cal/OSHA educational materials and engage in the Our Voice participatory action research (photovoice) method using a bilingual (Spanish and English) mobile application, or (2) the Control Group, which will only receive bilingual (Spanish and English) Cal/OSHA educational materials. Core outcomes will be measured identically across both groups to allow direct comparison of the two approaches. Using the "Our Voice participatory action research method" and Cal/OSHA educational materials, the investigators will learn about participants' attitudes, behaviors, and actions in response to changing climate in the counties and evaluate whether the education and photovoice approach is more impactful than traditional didactic Cal/Osha education only.

Conditions

Air Pollution Exposure

Study ID

NCT07713264

Start date

Sep 25, 2026

Status verified date

Sep, 2026

Completion date

May 31, 2029

Anticipated

Primary completion date

Dec 31, 2028

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Accepted

Inclusion Criteria:

  • Participants must be 18 years or older.
  • Participants must be connected to the San Joaquin Valley, Monterey County, or Kings County as either an outdoor worker or community member.
  • Participants must have the capacity to verbally consent in English or Spanish
  • Participants must have the ability to walk or otherwise move around their community using the Discovery Tool.
  • Have a smartphone capable of loading the Discovery Tool OR willingness to use a TracFone provided by the research team

Exclusion Criteria:

  • Inability to consent to the study.
  • Unable to navigate the Discovery Tool with reasonable technical guidance from the research team.

Study Design

Enrollment

50 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Health Services Research

Interventions and Outcome Measures

Arms

active comparator: Control

Participants will receive bilingual (Spanish and English) Cal/OSHA educational materials about improving awareness of air quality risks, promoting protective behaviors, and fostering community empowerment.

experimental: Intervention

Participants will receive the same bilingual (Spanish and English) Cal/OSHA educational materials from Control arm but also engage in the Our Voice participatory action research (photovoice) method using a bilingual (Spanish and English) mobile application.

Interventions

Receive education on heat and air quality health risks

Participants will receive Cal/OSHA educational materials covering heat and air quality risks for outdoor workers \[will insert more info (how often, method etc once MP revises protocol\].

Participate in Photovoice and climate health risk education

Participants will engage in the full Our Voice photovoice program, including training on the Discovery Tool, a Discovery Walk, attendance at a Community Discovery Meeting, and receive the same Cal/OSHA educational materials \[will insert more info (how often, method etc once MP revises protocol\].

Primary outcome measure

  • Change in self-efficacy as assessed by the Individual Community-Related Empowerment (ICRE) Scale. [ Time Frame: Change in self-efficacy from baseline to immediately after the intervention photovoice activity or control education activity and at 6 months ]

Central Contacts and Locations

Central contacts

Manali Patel, MS, MPH, MD

650-736-2768manalip@stanford.edu

Locations

Stanford University

Recruiting

Stanford, California, United States, 94306

More Information

Sponsor

Stanford University

Last update posted

Sep 15, 2026

Last verified

Sep, 2026

Keywords

  • air quality
  • San Joaquin Valley

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-16. This information was provided to ClinicalTrials.gov by Stanford University on 2026-09-15.