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Completed

NCT Number: NCT05234372

MiVacunaLA: an Intervention to Improve COVID-19 Vaccination Behaviors Among Latinos

The aim of this study is to determine whether a community-informed, linguistically and culturally tailored educational program delivered via mobile phone is effective in improving vaccination behaviors among Latino families. Thus we evaluate a community-based mobile phone intervention (mivacunaLA) to assess if there is an increase in vaccination rates among 12-17 year old children and willingness to vaccinate 2-11year old children who have not been previously vaccinated who reside in high-risk and low resourced neighborhoods in Los Angeles.

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Key information

Conditions

COVID-19 Pandemic COVID-19 Coronaviridae Infections Coronavirus Infections Infections Lung Diseases Nidovirales Infections Pneumonia Pneumonia, Viral RNA Virus Infections Respiratory Tract Diseases Respiratory Tract Infections Virus Diseases

Age range

18 year–75 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of California Los Angeles, Los Angeles, California, United States

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About this study

We conducted a community-based randomized clinical trial with a wait list control group among adult Latino parents or caregivers in East and South Los Angeles. Participants completed an online demographic and baseline survey and were randomly assigned to treatment or wait-list control. Based on their preference, participants received a weekly text message or email link twice a week for four weeks (Mon and Wed at noon). Twice a week messages consisted of a short text (<160 characters) linking participants to a 2-3 minute video (Monday) and educational text (around 500 words in length. The material was divided into weekly topics regarding the coronavirus vaccine and other topics relevant to the Latino community. Participants were also directed to reliable websites where they could access additional information and links with instructions on where to get vaccinated. Upon completing the intervention, participants completed a 1-month follow-up survey.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • self-identified as Latino/a,
  • were 18 years or older,
  • had at least one unvaccinated child of any age (17 or younger), and
  • had the means to receive messages and review educational material online, such as a text-capable mobile phone with internet access

Exclusion criteria

  • Unable to receive information via mobile text or computer.
  • Does not speak English or Spanish.

Treatment and study plan

mivacunaLA

Behavioral

Based on their stated language preference in the baseline survey, eligible participants in the program received a text message or email twice a week (Monday and Wednesday at noon). The short text messages (<160 characters in length) provided a link to a 2-3 min video (Monday) and a short educational content around 500 words (Wednesday). Content was organized by week with the following topics: 1) what is COVID-19 and how COVID-19 vaccines works, 2) COVID-19 vaccine myths and facts, 3) COVID-19 vaccine safety and efficacy in children, and 4) how to obtain COVID-19 vaccines in your community. Every week we provided information about how to get vaccines with links to local vaccine sites & resources.

Primary outcomes

  1. Primary Outcome Measure: vaccination status among minors 12-17 years

    Time frame: 1 month

    Changes in COVID-19 vaccination status among minors 12-17 years. Have the minor #X 12-17 years old in your household been vaccinated for the coronavirus? 1.Yes, 2.No, 3.Unsure Instrument similar used in the Understanding America Study

  2. Intent to vaccinate children 2-11 yrs old

    Time frame: 1 month

    Change in willingness to vaccinate children 2-11 yrs old. f a vaccine against the coronavirus becomes available for children ages 2-11, do you plan to get them vaccinated?1.Yes, as soon as possible, 2.Yes, but I want to wait and see, 3.No, but I want to wait and see, 4.No, I will not get a coronavirus vaccine for my child, 5.Not sure. Positive answers:1.Yes, as soon as possible, 2.Yes, but I want to wait and see Not positive: 3.No, but I want to wait and see, 4.No, I will not get a coronavirus vaccine for my child, 5.Not sure Instrument adjusted from Understanding America Study.

Sponsors and collaborators

Lead sponsor

Cedars-Sinai Medical Center

Other

Collaborators

  • Pepperdine University

Registry information

Official study title

MyVaccineLA/MiVacunaLA: A Mobile Phone Delivered Intervention to Improve COVID-19 Vaccination Behaviors Among Vulnerable Latino Families in Los Angeles

Important dates

Study start
2022
Primary completion
2022
Study completion
2022
First posted
Feb 10, 2022
Registry last updated
Dec 16, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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