A Digital Flu Intervention for People With Cardiovascular Conditions (CardioFlu)

May 23, 2022 updated by: Evidation Health

Increasing Influenza Vaccination in Individuals With Cardiovascular Conditions: Assessing the Effectiveness of a Digital Intervention in a Decentralized Randomized Controlled Trial

A 6-month prospective, digital randomized controlled trial targeting approximately 49,000 individuals to evaluate the effectiveness of an influenza vaccination intervention during influenza season for people with cardiovascular conditions

Study Overview

Study Type

Interventional

Enrollment (Actual)

49138

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • California
      • San Mateo, California, United States, 94401
        • Evidation Health

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Age 18 years or older
  • Resides in the U.S.
  • Speaks, reads, and understands English
  • Has self-reported being diagnosed with any of the following cardiac conditions below in their Achievement profile:
  • Atrial Fibrillation or Afib
  • Abnormal or irregular heart rhythm, other arrhythmic heart disease
  • Cardiac arrest, or heart attack (myocardial infarction)
  • Coronary heart disease like a heart blockage, treated with medications, a stent in the heart, or sometimes bypass surgery-
  • Heart failure, like congestive heart failure
  • Stroke or cerebrovascular accident (CVA)

Exclusion Criteria:

  • Participated in Step 1, Part 2 semi-structured interviews used to obtain feedback on the intervention messages

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: cardiovascular disorders digital intervention arm (CVD-I)
Individuals with cardiovascular disease who receive a targeted digital intervention aimed at increasing influenza vaccination
Messages that provide informational content on the influenza vaccine (sourced from the Centers for Disease Control and Prevention and the American Heart Association), specific information about influenza and cardiovascular disorders, and behavioral prompts (e.g., reminders) surrounding influenza vaccination behaviors.
No Intervention: cardiovascular disorders without digital intervention arm
Individuals with cardiovascular disease who receive no intervention

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With Self-reported Influenza Vaccination Status as Vaccinated
Time Frame: Up to 7 months
To determine the effectiveness of a digital intervention designed to increase influenza vaccination rates in individuals with cardiovascular diagnoses (CV diagnoses) by examining differences in self-reported influenza vaccination rates between individuals with cardiovascular disease who receive a targeted digital intervention (CVD-I) aimed at increasing influenza vaccination and those with CV diagnoses who received no intervention (CVD-C) by the end of the study period.
Up to 7 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With Self-reported Influenza Vaccination Status as Vaccinated
Time Frame: Up to 7 months
Differences in rates of self-reported influenza vaccination status after study start between individuals in the intervention group that completed different numbers of intervention messages (0 to 6 messages) over the course of the study
Up to 7 months
Participant Completion Rate
Time Frame: Up to 7 months
Differences in completion rates of specific intervention types by individuals in the group receiving the targeted intervention
Up to 7 months
Self-Reported Influenza Vaccination Status Prediction
Time Frame: Up to 7 months
Development of a logistic regression model to predict self-reported influenza vaccination status using vaccination predictors such as vaccine drivers/barriers, and vaccine knowledge.
Up to 7 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Nell Marshall, DrPh, Evidation Health

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 21, 2020

Primary Completion (Actual)

April 12, 2021

Study Completion (Actual)

April 12, 2021

Study Registration Dates

First Submitted

September 15, 2020

First Submitted That Met QC Criteria

October 6, 2020

First Posted (Actual)

October 14, 2020

Study Record Updates

Last Update Posted (Actual)

June 21, 2022

Last Update Submitted That Met QC Criteria

May 23, 2022

Last Verified

May 1, 2022

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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