ClinicalTrials.gg
CompletedNCT02167243Updated Jan 19, 2021

A Reinforcement Approach to Improve Diabetes Management

An interventional study of Reinforcement for BG testing and Standard of care in Type 1 Diabetes, sponsored by Yale University. Completed at 1 site in United States. Open to participants aged 12 Years to 21 Years. Per ClinicalTrials.gov, last updated 2021-01-19.

Sponsored by Yale University · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
62
Allocation
Randomized
Ages
12 Years to 21 Years
Sex
All
01

Study summary

The purpose of this project is to evaluate the efficacy of a behavioral economic intervention to improve self monitoring of blood glucose (SMBG) in adolescents and young adults with T1D. The intervention will reinforce patients for conducting SMBG, with escalating reinforcers provided when patients achieved sustained periods of testing at least 4 times/day at appropriate intervals. A 6-month trial will be conducted in which 60 patients will be randomized to: (1) standard care or (2) standard care plus the reinforcement intervention.

02

Conditions studied

  • Type 1 Diabetes
03

In context

Diabetes Mellitus, Type 1

3,614 studies on the registry are indexed under Diabetes Mellitus, Type 1; 586 are open to participants now.

This study's enrollment of 62 is above the median of 40 across 2,718 interventional studies indexed under Diabetes Mellitus, Type 1.

Browse Diabetes Mellitus, Type 1 studies →

Lead sponsor

Yale University is the lead sponsor of 1,763 studies on the registry; 292 are open to participants now.

Of its 217 completed or terminated interventional studies of FDA-regulated products, 128 (59%) have results posted.

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

04

Who can participate

Ages eligible
12 Years to 21 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. age 12-21 years old;
  2. diagnosis of type 1 diabetes (T1D) >12 months via ADA guidelines
  3. receiving diabetes treatment at Yale Pediatric Diabetes Clinic and not meeting clinical care guidelines
  4. SMBG user with clinical recommendations to test >4 times/day and using a device that allows for remote uploading (e.g., Aviva, Contour, Freestyle, Lifescan, etc.; equipment for uploading will be provided);
  5. access to a computer with internet for uploading and sending SMBG data;
  6. access to a cell phone with text messaging capabilities and willing to text after SMBG testing and receive messages about reinforcement;
  7. English speaking, able to read at >5th grade level, and pass an informed consent quiz; and adequate knowledge of insulin dosing and dietary recommendations for managing T1D.

Exclusion criteria

Exclusion Criteria:

  1. have a major psychiatric or neurocognitive disorder (e.g., severe learning impairment) that would inhibit participation;
  2. have a major visual impairment;
  3. have a significant other medical condition that impacts diabetes management (e.g., asthma, rheumatoid arthritis, or other condition that requires steroid treatment);
  4. plan to switch insulin delivery mode (injection to pump or vice versa) in the next 12 months, or have recently switched;
  5. are participating in another clinical trial.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
62 participants (actual)

Study arms

  • Experimental
    Reinforcement for performing BG testing

    Subjects will receive reinforcement for BG testing. The intervention will reinforce subjects for conducting Self Monitoring of Blood Glucose (SMBG), with escalating reinforcers provided when subjects achieved sustained periods of testing at least 4 times/day at appropriate intervals.

    Behavioral: Reinforcement for BG testing · Other: Standard of care

  • Active comparator
    No reinforcement for BG testing

    Subjects will receive standard of care without reinforcement for Self Monitoring Blood Glucose

    Other: Standard of care

Interventions

  • BehavioralReinforcement for BG testing

    Subjects will receive reinforcement for BG tests. The intervention will reinforce subjects for conducting Self Monitoring of Blood Glucose (SMBG), with escalating reinforcers provided when subjects achieved sustained periods of testing at least 4 times/day at appropriate intervals.

  • OtherStandard of care

    Subjects receive standard of care

06

What researchers measure

Primary outcomes

  1. To determine if the reinforcement intervention increases SMBG testing.

    The number of SMBG tests will be assessed via glucometer uploads, and the proportion of days on which at least 4 tests occurred as well as the longest number of consecutive days on which SMBG tests occurred at frequencies of \>4 times/day will be calculated. The hypothesis is that patients assigned to the reinforcement intervention will conduct more SMBG tests, have greater proportions of days with \>4 tests, and have longer durations of appropriate testing frequencies than patients assigned to usual care.

    Time frame: 6 Months

  2. To assess if the intervention reduces A1c

    Patients randomized to the reinforcement intervention are expected to have greater decreases in A1c over time than patients assigned to usual care.

    Time frame: 6 months

07

Study locations

1 site
  • Yale University School of Medicine
    New Haven, Connecticut 06520, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 19, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02167243
Lead sponsor
Yale University
Responsible party
Sponsor
First posted
Jun 19, 2014
Start date
Jul 2014
Primary completion
Nov 2019
Completion
Nov 2019
Last update
Jan 19, 2021

Study contacts

William Tamborlane, MD
principal investigator · Yale University

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2021. You cannot join it, but the record below documents what was studied.

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