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Automated SMS-Based Appointment Validation Tool

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified August 2012 by Medic Mobile.
Recruitment status was:  Not yet recruiting
San Mateo Medical Center
Information provided by (Responsible Party):
Medic Mobile Identifier:
First received: August 20, 2012
Last updated: August 22, 2012
Last verified: August 2012
Medic Mobile conceptualized and proposed the creation of an SMS-based appointment validation tool to automate appointment confirmation and rescheduling. Working in parallel with the San Mateo Medical Center (SMMC) electronic medical records (EMR) system, the software tool will automate reminders that request text responses from patients to either confirm or request to reschedule their upcoming appointments. While simple in concept, this tool aims to free up scarce clinical resources which are currently allocated to daily patient phone call reminders. With funding from a Bay Area foundation, the investigators will develop and pilot this open-source software tool in a 12-month randomized-controlled trial, slated to begin in October 2012. The endpoints of the study will aim to demonstrate improvements in both appointment adherence and glycemic control.

Condition Intervention Phase
Diabetes Mellitus Type 2
Adult-onset Diabetes
Other: SMS Reminder Software Tool
Early Phase 1

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Prevention
Official Title: An Automated SMS-Based Reminder and Rescheduling Tool to Improve Appointment Adherence Rates and Glycemic Control Among Diabetes Patients in San Mateo County

Further study details as provided by Medic Mobile:

Primary Outcome Measures:
  • Glycemic Control (hemoglobin A1c) [ Time Frame: 6-9 months post-enrollment ]
    The hemoglobin A1c (HbA1c) levels of study participants will be measured at the time of enrollment and at the end of the 6-9 month follow-up period.

Secondary Outcome Measures:
  • Appointment Adherence Rate [ Time Frame: 6-9 month post-enrollment ]
    Appointments scheduled during the 6-9 month follow-up period will be systematically tracked and monitored. The proportion of fulfilled appointments will be compared between the intervention and control arms.

Estimated Enrollment: 300
Study Start Date: October 2012
Estimated Study Completion Date: December 2013
Estimated Primary Completion Date: October 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: SMS Appointment Reminders
150 patients will be randomly assigned to the intervention arm of the study and receive text reminders about their upcoming appointments.
Other: SMS Reminder Software Tool
The 150 patients in the intervention arm of the study will receive SMS reminders regarding their upcoming appointments. Working in parallel with the SMMC electronic medical records system, the software tool will automate reminders that request text responses from patients to either confirm or request to reschedule their upcoming appointments. This bidirectional text messaging system would not interfere with the clinics' existing reminder protocol.
No Intervention: Existing Reminder Protocol
150 patients will be randomly assigned to the control arm of the study and will not receive SMS reminders about their upcoming appointments. They will, however, be subject to the clinics' existing reminder protocol (phone call reminders by either clinic personnel or computer machine).


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Belong to Willow Clinic or Fair Oaks Clinic under the San Mateo Medical Center
  • Have a diagnosis of type 2 diabetes as indicated by ICD-9 code of 249.xx or 250.xx
  • Have a most recent hemoglobin A1c (HbA1c) level greater than 7%
  • Are at least 18 years of age
  • Have access to cell phone
  • Are literate or live with a friend/family member who is literate and willing to handle associated text messages

Exclusion Criteria:

  • Have a terminal illness and prognosis of less than one year
  • Are unable to demonstrate the ability to reply to an SMS and lack an appropriate proxy
  • Are pregnant or expect to be pregnant in the next 6-9 months
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01671189

Contact: Jessica Qu 415-728-2208
Contact: Mainul Islam 415-328-7657

United States, California
San Mateo Medical Center Not yet recruiting
San Mateo, California, United States, 94403
Contact: Mike Aratow, Dr.   
Contact: Jeanette Aviles, Dr.   
Sponsors and Collaborators
Medic Mobile
San Mateo Medical Center
Principal Investigator: Nadim Mahmud Medic Mobile
  More Information

Additional Information:
Responsible Party: Medic Mobile Identifier: NCT01671189     History of Changes
Other Study ID Numbers: SMMC-MCK-2012
Study First Received: August 20, 2012
Last Updated: August 22, 2012

Additional relevant MeSH terms:
Diabetes Mellitus
Diabetes Mellitus, Type 2
Glucose Metabolism Disorders
Metabolic Diseases
Endocrine System Diseases processed this record on May 25, 2017