1300000 Participants NeededMy employer runs this trial

Messaging Strategies for COVID-19 Vaccination

(EMPOWeR Trial)

AR
ZS
Overseen ByZendi S Yha, BS
Age: 18+
Sex: Any
Trial Phase: Academic
Sponsor: Kaiser Permanente
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial explores how different messages about COVID-19 vaccine options might influence vaccination rates, particularly among those at high risk for severe illness. Researchers aim to determine if highlighting vaccine choices, explaining vaccine mechanisms, or endorsements from healthcare providers can boost vaccine uptake. The trial also examines whether offering choices can increase flu shot rates. It targets Kaiser Permanente Southern California members who haven't received the latest COVID-19 vaccine and have conditions like asthma, diabetes, or heart disease. Participants will receive various reminder messages to assess their effects. As an unphased trial, this study allows participants to contribute to important research that could improve public health messaging strategies.

Do I have to stop taking my current medications for the trial?

The trial information does not specify whether you need to stop taking your current medications. It seems focused on vaccine messaging and uptake, so it's unlikely that your current medications will be affected.

What prior data suggests that these messaging strategies are safe for increasing COVID-19 vaccine uptake?

Research has shown that COVID-19 vaccines are generally safe and well-tolerated. Independent studies confirm their effectiveness in preventing severe illness and highlight a strong safety record. For instance, mRNA bivalent boosters have been updated to ensure safety and efficacy.

Studies have also explored different communication strategies to improve understanding and acceptance of vaccines. These methods can reduce vaccine hesitancy, which refers to uncertainty about getting vaccinated, and are crucial for increasing vaccination rates.

In summary, the COVID-19 vaccines discussed in these studies have demonstrated safety, with side effects that are usually mild and temporary. Always consult a healthcare professional if questions or concerns about vaccination arise.12345

Why are researchers excited about this trial?

Researchers are excited about this trial because it tests new ways to encourage COVID-19 vaccination through different messaging strategies. Unlike the standard approach of just sending reminder messages, this trial explores how giving people choices about vaccines, explaining vaccine mechanisms, emphasizing healthcare professional support, and discussing possible side effects might influence their decision to get vaccinated. By tailoring the information to address people's concerns and preferences, these messaging strategies could lead to higher vaccination rates and better public health outcomes. This innovative approach could provide valuable insights into how communication can impact health behaviors.

What evidence suggests that this trial's messaging strategies could be effective for increasing COVID-19 vaccine uptake?

This trial will explore different messaging strategies to increase COVID-19 vaccination uptake. Research has shown that the way vaccines are discussed can influence vaccination decisions. In this trial, one arm will test the effect of simply informing participants about their vaccine options. Another arm will include explanations about how different vaccines work and provide protection, which can enhance confidence and clarity in decision-making. A separate arm will highlight healthcare personnel's support for multiple vaccine options, fostering trust and encouraging vaccination. Additionally, one arm will address possible side effects to prepare individuals for what to expect after vaccination. These communication strategies aim to increase vaccination by effectively addressing people's concerns and preferences.678910

Who Is on the Research Team?

AR

Annette Regan, PhD

Principal Investigator

Kaiser Permanente

Are You a Good Fit for This Trial?

This trial is for Kaiser Permanente Southern California members who are at high risk of severe COVID-19. Participants must be eligible to receive a COVID-19 vaccine and will be contacted during the 2026-2027 respiratory virus season.

Inclusion Criteria

Active KPSC member
Continuous membership from 27 August 2025 to 27 September 2026
Has valid email information
See 3 more

Exclusion Criteria

People who are pregnant or breastfeeding
I cannot or choose not to use email for communication.
I cannot safely receive a COVID-19 vaccine due to allergy or contraindication.

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Intervention

Participants receive different messaging interventions about COVID-19 vaccine options

2 months
No in-person visits required

Follow-up

Participants are monitored for vaccine uptake and co-administration with influenza vaccine

4 months

What Are the Treatments Tested in This Trial?

Interventions

  • Vaccine choice + HCP trust-framed message
  • Vaccine choice message
  • Vaccine choice + platform-framed message
  • Vaccine choice + reactogenicity-framed message

Trial Overview

The study tests different reminder messages about COVID-19 vaccines, including options that highlight vaccine choice, trust in healthcare providers, or possible side effects. Patients are randomly assigned to get one of these messages or a standard reminder.

How Is the Trial Designed?

5

Treatment groups

Experimental Treatment

Active Control

Group I: D. Choice + reactogenicity-framedExperimental Treatment1 Intervention
Group II: C. Choice + HCP trust-framedExperimental Treatment1 Intervention
Group III: B. Choice + vaccine platform-framedExperimental Treatment1 Intervention
Group IV: A. Choice-framedExperimental Treatment1 Intervention
Group V: Usual CareActive Control1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

Kaiser Permanente

Lead Sponsor

Trials
563
Recruited
27,400,000+

Sanofi

Industry Sponsor

Trials
2,246
Recruited
4,085,000+
Paul Hudson profile image

Paul Hudson

Sanofi

Chief Executive Officer since 2019

Degree in Economics from Manchester Metropolitan University

Christopher Corsico profile image

Christopher Corsico

Sanofi

Chief Medical Officer

MD from Cornell University, MPH in Chronic Disease Epidemiology from Yale University

Citations

Daniel A. Salmon

Individuals with low trust in the CDC had higher odds of low vaccine confidence. Framing messages may be counterproductive and need to be developed carefully. ...

(PDF) COVID-19 health Messaging

Research on message framing indicates that the persuasive effects of framing depend vaccination intention through utility and social norm ...

Healthcare Professionals' Discursive Constructions of ...

Recent data suggests that the COVID-19 outbreak in 2020 had a detrimental impact on childhood immunisation coverage across all WHO regions, ...

Australian healthcare providers' awareness of and ...

When asked if they were confident in the safety of the NIP and COVID-19 vaccines, 95% (n = 522/547) of surveyed HCPs reported that they were.

Experiences and perspectives of cancer stakeholders ...

Vaccines are an effective strategy in reducing mortality and morbidity from COVID-19. However, for COVID-19 vaccination programs to reach full ...

WHO statement on AstraZeneca COVID-19 vaccine safety ...

At this time, WHO recommends that vaccination with COVID-19 AstraZeneca continues as the benefits of immunisation outweigh potential risks.

Communicating About Vaccination in the United States

This project was designed to explore whether placing individual behavior change and the safety of vaccines at the center of communication is ...

COVID-19 Vaccine Messaging, Part 1 | Clinical Trial

This study tests different messages about vaccinating against COVID-19 once the vaccine becomes available. Participants are randomized to 1 ...

COVID-19 vaccine decisions: considering the choices ... - HERO

Provided here is a summary and informal decision-making tool kit for considering the different vaccine options at this time.

shows that 26.3% of the respondents get COVID-19 ...

26.3% of the respondents get COVID-19 vaccine messages through the radio, 21.8% get through Television (TV), 35.3% get the messages through social media and 16 ...