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CompletedNCT06767423Updated Apr 4, 2025

Comparing the Effectiveness of Different Appointment Reminder Methods

An interventional study of Text Message + Automated Caller (Intervention) in Appointment Reminders, sponsored by M. Kit Delgado, MD. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-04-04.

Sponsored by M. Kit Delgado, MD · Not applicable, Interventional, and Other

Phase
Not applicable
Study type
Interventional
Enrollment
32,925
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Penn Medicine is continually trying to optimize operations and decrease number of patients who do not show up for their appointments. This has included new changes to text message reminders, implemented as usual care. At a baseline, less than 75% of scheduled outpatient appointments are actually completed. This results in longer wait times and decreased access for patients and operational inefficiencies. The goal of the project is to test whether supplementing standard text message appointment reminders with targeted outreach using an automated phone call to patients with increased risk of not showing up for their appointment (>15% per Epic's Risk of Patient No-Show Model) reduces no show rate (the study's primary outcome) and increases patient appointment completion rate (% of appointments that were completed during scheduled appointment time, a secondary outcome). Participants will be randomized in a 1:1 ratio to receive either the standard text message or standard text message plus the automated caller. Eligible patients have already consented to receiving text message reminders from Penn Medicine and must have an in-person appointment scheduled during the study period. The Access Optimization Group at Penn will be monitoring the randomization and outcomes reporting of whether a patient confirmed, cancelled, or no showed at the scheduled appointment. All eligible outpatient appointments over a two week period will be included in this operational evaluation. The Access Optimization Group will then make a decision on which approach to implement as usual care based on the results of this operational evaluation.

02

Conditions studied

  • Appointment Reminders
03

In context

Lead sponsor

This is the only study on the registry with M. Kit Delgado, MD as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:

  • in-person appointments
  • English or Spanish speakers
  • 18 years old or older
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
32,925 participants (actual)

Study arms

  • No intervention
    Text Message (Usual Care)

    Standard text message appointment reminders to English and Spanish-speaking patients. Text reminders will go out 3-weeks, 3 days, and 24 hours before the appointment.

  • Active comparator
    Text Message + Automated Caller (Intervention)

    Standard text message appointment reminders to English and Spanish-speaking patients. Text reminders will go out 3-weeks, 3 days, and 24 hours before the appointment. If patient has not confirmed their appointment after the 3-week and 3-day reminders, they'll receive an automated caller.

    Behavioral: Text Message + Automated Caller (Intervention)

Interventions

  • BehavioralText Message + Automated Caller (Intervention)

    Standard text message appointment reminders to English and Spanish-speaking patients. Text reminders will go out 3-weeks, 3 days, and 24 hours before the appointment. If patient has not confirmed their appointment after the 3-week and 3-day reminders they will receive an automated caller.

06

What researchers measure

Primary outcomes

  1. No Show Rate

    Proportion of initially scheduled appointments in which the patient did not show.

    Time frame: Through study completion, on average of 3 weeks

Secondary outcomes

  1. Appointment Completion Rate

    Proportion of initial scheduled appointments completed.

    Time frame: Through study completion, on average of 3 weeks

  2. Appointment Cancelation Rate

    Proportion of initially scheduled appointments cancelled.

    Time frame: Through study completion, on average of 3 weeks

  3. Appointment Refill Rate

    Proportion of cancelled appointments that were refilled.

    Time frame: Through study completion, on average of 3 weeks

  4. Refilled Appointment Completion Ration

    Proportion of refilled appointments that were completed.

    Time frame: Through study completion, on average of 3 weeks

  5. Net Appointment Completion Rate

    Proportion of appointment slots resulting in a completed appointment. Includes completed refilled appointments.

    Time frame: Through study completion, on average of 3 weeks

07

Study locations

1 site
  • Penn Medicine
    Philadelphia, Pennsylvania 19104, United States
08

References and documents

Publications

  • Tarabichi Y, Higginbotham J, Riley N, Kaelber DC, Watts B. Reducing Disparities in No Show Rates Using Predictive Model-Driven Live Appointment Reminders for At-Risk Patients: a Randomized Controlled Quality Improvement Initiative. J Gen Intern Med. 2023 Oct;38(13):2921-2927. doi: 10.1007/s11606-023-08209-0. Epub 2023 May 1. PubMed 37126125 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 4, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06767423
Lead sponsor
M. Kit Delgado, MD
Responsible party
M. Kit Delgado, MD (Associate Professor of Emergency Medicine, University of Pennsylvania) — Sponsor-investigator
First posted
Jan 9, 2025
Start date
Nov 5, 2024
Primary completion
Dec 5, 2024
Completion
Feb 5, 2025
Last update
Apr 4, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Apr 2025. You cannot join it, but the record below documents what was studied.

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