Patient Portal Flu Vaccine Reminders_RCT 4

Summary

This trial is taking place in Los Angeles, CA at clinics within the UCLA Health System.

The study design is a 2x2 nested factorial design. Patients will be randomized into 1) receiving text based reminder messages, 2) portal-based reminder messages or 3) the control group. Patients randomized to the intervention arms will receive reminders if they are due for influenza vaccine.

Nested within the reminder arms (text or portal), we will have 2 additional components for which patients will be randomized separately:

* A direct scheduling link within the reminder letter enabling the patient to schedule an influenza vaccine only visit (direct scheduling link vs. no direct scheduling link).
* A pre-appointment reminder, encouraging patients to ask for their influenza vaccine at their upcoming appointment (pre-appointment reminder encouraging influenza vaccination vs. standard pre-appointment reminder not mentioning influenza vaccination)

Despite the Advisory Committee on Immunization Practices (ACIP) recommendation in 2010 that all people above 6 months of age should receive an annual flu vaccine, vaccination rates remain low: at 6m-4.9 yrs. (70%), 5-17.9 yrs. (56%), 18-64.9 yrs. (38%), and \>65 yrs. (63%). The investigators will assess the effectiveness of MyChart R/R messages and text R/R messages as compared to the standard of care control (no messages).

Conditions

• Influenza
• Respiratory Tract Infections

Interventions

BEHAVIORAL

Text Message R/R with Direct Appointment Schedule Link

Participants in this arm will receive up to 3 R/R messages by text reminding them to get a flu vaccine with a Direct Appointment Scheduling link and instructions to make a flu vaccine appointment.

BEHAVIORAL

Text Message R/R without Direct Appointment Schedule Link

Participants in this arm will receive up to 3 R/R messages by text reminding them to get a flu vaccine without a Direct Appointment Scheduling link and instructions to make a flu vaccine appointment.

BEHAVIORAL

Text Pre-Appointment Reminder

Participants will receive a Pre-Appointment Reminder via text when they schedule a visit during the study period advising them to get the flu vaccine at their upcoming appointment.

BEHAVIORAL

Portal Message R/R with Direct Appointment Schedule Link

Participants in this arm will receive up to 3 R/R messages by portal. R/R message will be sent with a Direct Appointment Scheduling link and instructions to make a flu vaccine appointment.

BEHAVIORAL

Portal Message R/R without Direct Appointment Schedule Link

Participants in this arm will receive up to 3 R/R messages by portal. R/R message will be sent without a Direct Appointment Scheduling link and instructions to make a flu vaccine appointment.

BEHAVIORAL

Portal Pre-Appointment Reminder

Participants will receive a Pre-Appointment Reminder via the portal advising them to ask their doctor for the flu vaccine at their upcoming appointment via text when they schedule a visit during the study period.

Sponsors & Collaborators

• National Institute of Allergy and Infectious Diseases (NIAID)

  collaborator NIH

• University of California, Los Angeles

  lead OTHER

Principal Investigators

• Peter Szilagyi, MPH, MD · University of California, Los Angeles

Study Design

Allocation

RANDOMIZED

Purpose

HEALTH_SERVICES_RESEARCH

Masking

SINGLE

Model

FACTORIAL

Eligibility

Min Age

6 Months

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2021-10-14

Primary Completion

2022-04-01

Completion

2022-04-01

Countries

• United States

Study Locations