NCT03666026

Brief Summary

This trial is taking place in Los Angeles, CA at clinics within the UCLA Health System. 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 and cost-effectiveness of 1, 2, 3 MyChart R/R messages as compared to the standard of care control (no messages).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
164,205

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Oct 2018

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 7, 2018

Completed
4 days until next milestone

First Posted

Study publicly available on registry

September 11, 2018

Completed
21 days until next milestone

Study Start

First participant enrolled

October 2, 2018

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 2, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 2, 2019

Completed
2.6 years until next milestone

Results Posted

Study results publicly available

November 17, 2021

Completed
Last Updated

November 17, 2021

Status Verified

October 1, 2021

Enrollment Period

6 months

First QC Date

September 7, 2018

Results QC Date

May 8, 2021

Last Update Submit

November 12, 2021

Conditions

Keywords

Reminder Recall (R/R)Influenza VaccineElectronic Health Record

Outcome Measures

Primary Outcomes (1)

  • 1.Receipt of the Annual Influenza Vaccine (Between 10/1/18 - 4/2/19) Among Index Patients. Outcomes Will be Assessed Via Vaccine Data Extraction From the Electronic Health Record and External Claims and Pharmacy Data.

    Number of participants in each arm who received influenza vaccination

    October 1, 2018 to April 2, 2019 during influenza vaccination season

Study Arms (4)

Standard of care control

NO INTERVENTION

Participants in this group will not receive any MyChart influenza vaccination reminders

1 MyChart R/R

EXPERIMENTAL

Participants in this group will receive up to 1 influenza reminder recall notice via their MyChart account

Behavioral: 1 MyChart R/R

2 MyChart R/R

EXPERIMENTAL

Participants in this group will receive up to 2 influenza reminder recall notices via their MyChart account

Behavioral: 2 MyChart R/R

3 MyChart R/R

EXPERIMENTAL

Participants in this group will receive up to 3 influenza reminder recall notices via their MyChart account

Behavioral: 3 MyChart R/R

Interventions

1 MyChart R/RBEHAVIORAL

Up to 1 flu vaccine reminder recall notice sent via MyChart to patients who are due for the flu vaccine, per the EMR records of the health system.

1 MyChart R/R
2 MyChart R/RBEHAVIORAL

Up to 2 flu vaccine reminder recall notices sent every 3-4 weeks via MyChart to patients who are due for the flu vaccine, per the EMR records of the health system.

2 MyChart R/R
3 MyChart R/RBEHAVIORAL

Up to 3 flu vaccine reminder recall notices sent every 3-4 weeks via MyChart to patients who are due for the flu vaccine, per the EMR records of the health system.

3 MyChart R/R

Eligibility Criteria

Age4 Months+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • A patient within the UCLA Health System identified by the system as a primary care patient per an internal algorithm, with a documented primary care visit within the last 3 years as of 8/1/18.

You may not qualify if:

  • A patient not identified by the UCLA Health System's internal algorithm as a primary care patient.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of California, Los Angeles

Los Angeles, California, 90095, United States

Location

Related Publications (1)

  • Szilagyi PG, Albertin C, Casillas A, Valderrama R, Duru OK, Ong MK, Vangala S, Tseng CH, Rand CM, Humiston SG, Evans S, Sloyan M, Lerner C. Effect of Patient Portal Reminders Sent by a Health Care System on Influenza Vaccination Rates: A Randomized Clinical Trial. JAMA Intern Med. 2020 Jul 1;180(7):962-970. doi: 10.1001/jamainternmed.2020.1602.

MeSH Terms

Conditions

Influenza, HumanRespiratory Tract Infections

Condition Hierarchy (Ancestors)

InfectionsOrthomyxoviridae InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract Diseases

Results Point of Contact

Title
Principal Investigator
Organization
UCLA

Study Officials

  • Peter Szilagyi, MD MPH

    University of California, Los Angeles

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Executive Vice Chair, Clinical Research, UCLA David Geffen School of Medicine, Dept of Pediatrics

Study Record Dates

First Submitted

September 7, 2018

First Posted

September 11, 2018

Study Start

October 2, 2018

Primary Completion

April 2, 2019

Study Completion

April 2, 2019

Last Updated

November 17, 2021

Results First Posted

November 17, 2021

Record last verified: 2021-10

Data Sharing

IPD Sharing
Will not share

Aggregate results will be prepared for publication at the end of the trial.

Locations