Influenza Reminder Text-Messaging

NCT06587984 | Completed

• 1 other identifier: 24-022516
• Study Type: interventional
• Target: 228,361
• Locations: 1 country
• Sites: 1

Brief Summary

Through a large, population-level quality improvement effort within the Children's Hospital of Philadelphia Care Network, we will evaluate text message reminders on flu vaccination rates for both patients with and without a scheduled well child care visit during flu season.

Conditions

Influenza

Outcome Measures

Primary Outcomes (1)

• The effectiveness of a text message reminder on influenza vaccine uptake

  Via prospective chart review, the primary outcome for both Cohort 1 and Cohort 2 will be to assess the number of patients who received an influenza vaccination 30 days post-text message reminder (baseline). Data from chart review will determine vaccination status (patient received influenza vaccination or not).

  Baseline to approximately 30 days post-text message

Secondary Outcomes (2)

• The effectiveness of text message language within Cohort 1

  Baseline to approximately 30 days post-text message

• The effectiveness of text message language within Cohort 2

  Baseline to approximately 30 days post-text message

Study Arms (6)

Cohort 1a

NO INTERVENTION

Patients within Cohort 1 have an upcoming well child visit between September-December 2024. Patients within Cohort 1a are those randomized to CONTROL and will not receive a text message reminder about getting their flu shot at their upcoming visit.

Cohort 1b

EXPERIMENTAL

Patients within Cohort 1 have an upcoming well child visit between September-December 2024. Patients within Cohort 1b are those randomized to INTERVENTION MESSAGE #1 and will receive text message reminder (variation #1) about getting their flu shot at their upcoming visit.

Behavioral: Text message reminder

Cohort 1c

EXPERIMENTAL

Patients within Cohort 1 have an upcoming well child visit between September-December 2024. Patients within Cohort 1c are those randomized to INTERVENTION MESSAGE #2 and will receive text message reminder (variation #2) about getting their flu shot at their upcoming visit.

Behavioral: Text message reminder

Cohort 2a

NO INTERVENTION

Patients within Cohort 2 do not have an upcoming well visit between September-December 2024, but completed their well visit between January 2023 through August 2024. Patients within Cohort 2a are those randomized to CONTROL and will not receive a text message reminder about getting their flu shot.

Cohort 2b

EXPERIMENTAL

Patients within Cohort 2 do not have an upcoming well visit between September-December 2024, but completed their well visit between January 2023 through August 2024. Patients within Cohort 2b are those randomized to INTERVENTION MESSAGE #1 and will receive text message reminder (variation #3) about getting their flu shot this upcoming flu season.

Behavioral: Text message reminder

Cohort 2c

EXPERIMENTAL

Patients within Cohort 2 do not have an upcoming well visit between September-December 2024, but completed their well visit between January 2023 through August 2024. Patients within Cohort 2b are those randomized to INTERVENTION MESSAGE #2 and will receive text message reminder (variation #4) about getting their flu shot this upcoming flu season.

Behavioral: Text message reminder

Interventions

Text message reminder BEHAVIORAL

One-time text message reminder with information about getting flu vaccine at CHOP

Cohort 1b; Cohort 1c; Cohort 2b; Cohort 2c

Eligibility Criteria

• Age: 6 Months - 18 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• All patients between ages 6 months-18 years old who have an upcoming well visit during the Fall of 2024 (September through December 2024) or had a completed well visit from January 2023 through August 2024
• Patients have a mobile phone number within their medical record
• Patients have opted-in to text communications from CHOP
• English-speaking

Sponsors & Collaborators

• Children's Hospital of Philadelphia: lead

Study Sites (1)

The Children's Hospital of Philadelphia

Philadelphia, Pennsylvania, 19146, United States

Location

MeSH Terms

Conditions

Influenza, Human

Condition Hierarchy (Ancestors)

Respiratory Tract Infections; Infections; Orthomyxoviridae Infections; RNA Virus Infections; Virus Diseases; Respiratory Tract Diseases

Study Officials

• Brian P. Jenssen, MD

  Children's Hospital of Philadelphia

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: PARTICIPANT
• Masking Details: Patients (recipients of text message reminders) will not know which group they are in.
• Purpose: PREVENTION
• Intervention Model: FACTORIAL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: September 5, 2024
• First Posted: September 19, 2024
• Study Start: September 3, 2024
• Primary Completion: December 31, 2024
• Study Completion: December 31, 2024
• Last Updated: October 1, 2025

Record last verified: 2025-09

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)