App-Based Certified Diabetes Education Therapy (AB-CDE) (AB-CDE)

August 29, 2026 updated by: Linda Lester, Oregon Health and Science University

Development and Evaluation of App-Based Certified Diabetes Education (AB-CDE) Therapy for People Living With T1D Using MDI

The purpose of this study is to learn more about a smartphone application (app) called DailyDose, an investigational decision support tool that may help in managing your diabetes. DailyDose tracks your continuous glucose monitoring (CGM) data, insulin use, and exercise, and uses this information to provide personalized recommendations for insulin dosing and carbohydrate intake during exercise or low blood sugar events. We want to find out if DailyDose can help lower blood sugar levels as measured by the hemoglobin A1c (HbA1c) test.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Participants will be on study for 38 weeks (2-week run-in period and 36 weeks of intervention/control). Participants will begin the study with a training visit on the Dexcom G6 CGM system, the insulin dose capture system, and the Data-logging Mode of DailyDose. Participants will be provided with Humalog and Basaglar Tempo pens for use with the insulin dose capture system. Participants will also receive an iPhone and Apple smart watch for acquiring sleep metrics and exercise data. Participants will use these devices during the next 14 days at home (2-week run-in). At the end of the run-in, participants will be randomized to the intervention or control group. The intervention group will be trained at Visit 3 on using the DailyDose system. Participants will then use the DailyDose system for 12 weeks. Sensor glucose, exercise, insulin and meal data will be collected during the DailyDose portion of the study in order to produce recommendations for insulin dosing. Participants will wear the Dexcom G6 for the entire study. Insulin data will be collected using the insulin dose capture system (Tempo pens and Tempo button). Participants will be instructed to use the bolus calculator within the DailyDose app. Participants will be asked to complete a 30-minute aerobic exercise video at home once per week starting with the first 12-week period. After 12 weeks, time in range (70-180 mg/dL, TIR) and time in hypoglycemia (<70 mg/dL) will be assessed from the prior 4 weeks based on the Dexcom G6. Participants that have TIR ≥ 60% and time in hypoglycemia <4% will continue with use of DailyDose. Those that have TIR < 60% and/or time in hypoglycemia ≥ 4% will receive DSMES and, if recommended, behavioral health based on the T1-Diabetes Distress Assessment System (T1-DDAS) for the next 12 weeks. Additionally, if the DSMES provider feels the participant would benefit from behavioral health intervention, they can refer the participant for this even if T1-DDAS scores do not meet the cut off. All participants will then be followed for a final 12-week period using DailyDose alone to assess sustainability of any improvements in glycemic outcomes. Participants in the control group will use the Dexcom G6 CGM, the insulin dose capture system (Tempo pens and Tempo button), and the Data-logging Mode of DailyDose for the entire study. They will also be asked to complete a 30-minute aerobic exercise video at home once per week starting with the first 12-week period.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
99

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • California
      • Los Angeles, California, United States, 90022
    • Colorado
    • Indiana
      • Indianapolis, Indiana, United States, 46202
        • Recruiting
        • Indiana University
        • Contact:
        • Contact:
    • Massachusetts
    • New York
      • New York, New York, United States, 10029
        • Recruiting
        • Mount Sinai School of Medicine
        • Contact:
        • Contact:
        • Sub-Investigator:
          • Camilla Levister
    • Oregon
      • Portland, Oregon, United States, 97239
        • Recruiting
        • Oregon Health & Science University , Portland
        • Principal Investigator:
          • Peter Jacobs, PhD
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Diagnosis of type 1 diabetes mellitus for at least 1 year.
  2. Age 18 years and older.
  3. Able to read, write and understand spoken English
  4. HbA1c or GMI 7.5- 11.5% at screening. GMI (%) = 3.31 + 0.02392 × [mean glucose in mg/dL] based on prior 30 days of CGM data with at least 70% time CGM active[6]
  5. Use of multiple daily insulin injections (MDI) for at least 30 days at the time of screening visit.
  6. Willing to use the approved study insulin and devices while on study - Humalog and Basaglar Tempo pens, Dexcom G6 CGM, study iPhone, Apple watch
  7. Willingness and ability to independently follow all study procedures, including attending all clinic and DSMES and behavioral health visits.
  8. Total daily insulin requirements of less than 200 units

Exclusion Criteria:

  1. Female of childbearing potential who is pregnant or intending to become pregnant or breast-feeding or is not using adequate contraceptive methods. Acceptable contraception includes birth control pill / patch / vaginal ring, Depo-Provera, Norplant, an IUD, the double barrier method (the woman uses a diaphragm and spermicide, and the man uses a condom), or abstinence.
  2. History of stroke, heart failure, myocardial infarction, angina pectoris, or coronary arterial bypass graft or angioplasty.
  3. Renal insufficiency (GFR < 60 ml/min, using either MDRD** or CKD-EPI# equation as reported by the laboratory).
  4. Liver failure, cirrhosis, or any other liver disease that compromises liver function as determined by the investigator.
  5. History of severe hypoglycemia during the 3 months prior to screening or hypoglycemia unawareness as judged by the investigator. Participants will complete a hypoglycemia awareness questionnaire. Participants will be excluded for four or more R responses.
  6. History of diabetes ketoacidosis during the 3 months prior to screening, as diagnosed on hospital admission or as judged by the investigator.
  7. History of psychiatric admission during the 6 months prior to screening.
  8. Adrenal insufficiency.
  9. Any active infection.
  10. Known or suspected abuse of alcohol, narcotics, or illicit drugs.
  11. Uncontrolled seizure disorder.
  12. Active foot ulceration.
  13. Severe peripheral arterial disease characterized by ischemic rest pain or severe claudication.
  14. Major surgical operation within 30 days prior to screening.
  15. Use of an investigational drug within 30 days prior to screening.
  16. Chronic usage of any immunosuppressive medication (such as cyclosporine, azathioprine, sirolimus, or tacrolimus).
  17. Bleeding disorder, treatment with warfarin, or platelet count below 50,000.
  18. Allergy to Humalog or Basaglar insulin.
  19. Current chronic administration of oral or parenteral corticosteroids.
  20. Any life-threatening disease, including malignant neoplasms and medical history of malignant neoplasms within the 5 years prior to screening (except basal and squamous cell skin cancer).
  21. Initiation or titration of any medication used to lower glucose other than insulin in the 6 weeks prior to screening (e.g. metformin or semaglutide). Participants will not be excluded if they are non-insulin glucose lowering medication at a stable dose with no plans for discontinuation or dose modification during the course of the study). A positive response to any of the questions from the Physical Activity Readiness Questionnaire (see Appendix A) with one exception: participant will not be excluded if taking a single blood pressure medication and blood pressure is controlled on the medication (blood pressure is less than 140/90 mmHg).
  22. Any chest discomfort with physical activity, including pain or pressure, or other types of discomfort.
  23. Gastroparesis.
  24. On a very low carbohydrate diet (less than 50g per day)
  25. Taking part in another diabetes or obesity-related treatment study.
  26. Any clinically significant disease or disorder which, in the opinion of the Investigator, may jeopardize the participant's safety or compliance with the protocol.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Intervention Group
AB-CDE intervention using DailyDose, study CGM, and CDE and BH counselling if indicated
Device: DailyDose
Our team has developed a smartphone-based application, DailyDose Decision Support Tool (DailyDose), that combines continuous glucose monitoring data and insulin data to provide decision support for people living with T1D taking MDI. DailyDose is an iPhone application that is designed to support this population by 1) allowing for bolus calculation based on inputs including carbohydrate intake, CGM value and trend, and exercise information, 2) providing recommendations for carbohydrate intake based on exercise type, intensity, and duration, and 3) providing weekly recommendations for adjustments in insulin doses at specific times of day, including basal insulin dose, carbohydrate ratios or fixed mealtime doses, and correction factors .
No Intervention: Control Group
Usual care including MDI insulin therapy with study CGM and DailyDose in Data-logging Mode.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change in hemoglobin A1c (HbA1c) from baseline to 24 weeks
Time Frame: Enrollment and 24 weeks after randomization
Hemoglobin A1c will be processed by a central lab. Lower values generally indicate better glucose control.
Enrollment and 24 weeks after randomization

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in percent of time in range (70-180 mg/dL) from baseline to 24 weeks after randomization
Time Frame: Week 24 after randomization compared with baseline
Continuous Blood Glucose Monitor (CGM) values are recorded every 5 minutes. Percent of time in this range during the two weeks before a study time point will be treated as representing blood glucose control at that study time point.
Week 24 after randomization compared with baseline
Change in percent of time in range (70-180 mg/dL) from baseline to 36 weeks after randomization
Time Frame: Week 36 after randomization compared with baseline
Continuous Blood Glucose Monitor (CGM) values are recorded every 5 minutes. Percent of time in this range during the two weeks before a study time point will be treated as representing blood glucose control at that study time point.
Week 36 after randomization compared with baseline
Change in percent of time in tight range (70-140 mg/dL) from baseline to 24 weeks after randomization
Time Frame: Week 24 after randomization compared with baseline
Continuous Blood Glucose Monitor (CGM) values are recorded every 5 minutes. Percent of time in this range during the two weeks before a study time point will be treated as representing blood glucose control at that study time point.
Week 24 after randomization compared with baseline
Change in percent of time in tight range (70-140 mg/dL) from baseline to 36 weeks after randomization
Time Frame: Week 36 after randomization compared with baseline
Continuous Blood Glucose Monitor (CGM) values are recorded every 5 minutes. Percent of time in this range during the two weeks before a study time point will be treated as representing blood glucose control at that study time point.
Week 36 after randomization compared with baseline
Change in percent of time in low glucose range (<70 mg/dL) from baseline to 24 weeks after randomization
Time Frame: Week 24 after randomization compared with baseline
Continuous Blood Glucose Monitor (CGM) values are recorded every 5 minutes. Percent of time in this range during the two weeks before a study time point will be treated as representing blood glucose control at that study time point.
Week 24 after randomization compared with baseline
Change in percent of time in low glucose range (<70 mg/dL) from baseline to 36 weeks after randomization
Time Frame: Week 36 after randomization compared with baseline
Continuous Blood Glucose Monitor (CGM) values are recorded every 5 minutes. Percent of time in this range during the two weeks before a study time point will be treated as representing blood glucose control at that study time point.
Week 36 after randomization compared with baseline
Change in percent of time in very low glucose range (<54 mg/dL) from baseline to 24 weeks after randomization
Time Frame: Week 24 after randomization compared with baseline
Continuous Blood Glucose Monitor (CGM) values are recorded every 5 minutes. Percent of time in this range during the two weeks before a study time point will be treated as representing blood glucose control at that study time point.
Week 24 after randomization compared with baseline
Change in percent of time in very low glucose range (<54 mg/dL) from baseline to 36 weeks after randomization
Time Frame: Week 36 after randomization compared with baseline
Continuous Blood Glucose Monitor (CGM) values are recorded every 5 minutes. Percent of time in this range during the two weeks before a study time point will be treated as representing blood glucose control at that study time point.
Week 36 after randomization compared with baseline
Change in percent of time in high glucose range (>180 mg/dL) from baseline to 24 weeks after randomization
Time Frame: Week 24 after randomization compared with baseline
Continuous Blood Glucose Monitor (CGM) values are recorded every 5 minutes. Percent of time in this range during the two weeks before a study time point will be treated as representing blood glucose control at that study time point.
Week 24 after randomization compared with baseline
Change in percent of time in high glucose range (>180 mg/dL) from baseline to 36 weeks after randomization
Time Frame: Week 36 after randomization compared with baseline
Continuous Blood Glucose Monitor (CGM) values are recorded every 5 minutes. Percent of time in this range during the two weeks before a study time point will be treated as representing blood glucose control at that study time point.
Week 36 after randomization compared with baseline
Change in percent of time in extreme high glucose range (>250 mg/dL) from baseline to 24 weeks after randomization
Time Frame: Week 24 after randomization compared with baseline
Continuous Blood Glucose Monitor (CGM) values are recorded every 5 minutes. Percent of time in this range during the two weeks before a study time point will be treated as representing blood glucose control at that study time point.
Week 24 after randomization compared with baseline
Change in percent of time in extreme high glucose range (>250 mg/dL) from baseline to 36 weeks after randomization
Time Frame: Week 36 after randomization compared with baseline
Continuous Blood Glucose Monitor (CGM) values are recorded every 5 minutes. Percent of time in this range during the two weeks before a study time point will be treated as representing blood glucose control at that study time point.
Week 36 after randomization compared with baseline
Change in mean blood glucose from baseline to 24 weeks after randomization
Time Frame: Week 24 after randomization compared with baseline
Continuous Blood Glucose Monitor (CGM) values are recorded every 5 minutes. The average of values collected during the two weeks before a study time point will be treated as representing mean glucose at that study time point.
Week 24 after randomization compared with baseline
Change in mean blood glucose from baseline to 36 weeks after randomization
Time Frame: Week 36 after randomization compared with baseline
Continuous Blood Glucose Monitor (CGM) values are recorded every 5 minutes. The average of values collected during the two weeks before a study time point will be treated as representing mean glucose at that study time point.
Week 36 after randomization compared with baseline
Change in coefficient of variation of blood glucose from baseline to 24 weeks after randomization
Time Frame: Week 24 after randomization compared with baseline
Continuous Blood Glucose Monitor (CGM) values are recorded every 5 minutes. The coefficient of variation (CV) of CGM values is calculated as SD / mean * 100, where SD = standard deviation. The two weeks before a study time point will be used to represent that study time point.
Week 24 after randomization compared with baseline
Change in coefficient of variation of blood glucose from baseline to 36 weeks after randomization
Time Frame: Week 36 after randomization compared with baseline
Continuous Blood Glucose Monitor (CGM) values are recorded every 5 minutes. The coefficient of variation (CV) of CGM values is calculated as SD / mean * 100, where SD = standard deviation. The two weeks before a study time point will be used to represent that study time point.
Week 36 after randomization compared with baseline
Change in Low Blood Glucose Index (LBGI) from baseline to 24 weeks after randomization
Time Frame: Week 24 after randomization compared with baseline
The Low Blood Glucose Index (LBGI) is designed to reflect the risk of hypoglycemia and increases with the extent and frequency of hypoglycemic excursions. It is calculated by first taking f(BG) = (ln(BG)^1.084 - 5.381) for each blood glucose (BG) reading, then calculating rl(BG) = 22.7 * f(BG)^2 if f(BG) ≤ 0 and rl(BG) = 0 otherwise, and finally, by taking the average of the calculated rl(BG) values over all of the glucose readings measured in mg/dL.
Week 24 after randomization compared with baseline
Change in Low Blood Glucose Index (LBGI) from baseline to 36 weeks after randomization
Time Frame: Week 36 after randomization compared with baseline
The Low Blood Glucose Index (LBGI) is designed to reflect the risk of hypoglycemia and increases with the extent and frequency of hypoglycemic excursions. It is calculated by first taking f(BG) = (ln(BG)^1.084 - 5.381) for each blood glucose (BG) reading, then calculating rl(BG) = 22.7 * f(BG)^2 if f(BG) ≤ 0 and rl(BG) = 0 otherwise, and finally, by taking the average of the calculated rl(BG) values over all of the glucose readings measured in mg/dL.
Week 36 after randomization compared with baseline
Change in High Blood Glucose Index (HBGI) from baseline to 24 weeks after randomization
Time Frame: Week 24 after randomization compared with baseline
The High Blood Glucose Index (HBGI) is designed to reflect the risk of hyperglycemia and increases with the extent and frequency of hyperglycemic excursions. It is calculated by first taking f(BG) = (ln(BG)^1.084 - 5.381) for each blood glucose (BG) reading, then calculating rh(BG) = 22.7 * f(BG)^2 if f(BG) > 0 and rh(BG) = 0 otherwise, and finally, by taking the average of the calculated rh(BG) values over all of the glucose readings measured in mg/dL.
Week 24 after randomization compared with baseline
Change in High Blood Glucose Index (HBGI) from baseline to 36 weeks after randomization
Time Frame: Week 36 after randomization compared with baseline
The High Blood Glucose Index (HBGI) is designed to reflect the risk of hyperglycemia and increases with the extent and frequency of hyperglycemic excursions. It is calculated by first taking f(BG) = (ln(BG)^1.084 - 5.381) for each blood glucose (BG) reading, then calculating rh(BG) = 22.7 * f(BG)^2 if f(BG) > 0 and rh(BG) = 0 otherwise, and finally, by taking the average of the calculated rh(BG) values over all of the glucose readings measured in mg/dL.
Week 36 after randomization compared with baseline
Change in T1-DDAS Core Score from baseline to 24 weeks after randomization
Time Frame: Week 24 after randomization compared with baseline
The Type 1 Diabetes Distress Assessment System (T1-DDAS) Core Score is the average of 8 items on a scale from 1 to 5, where 1 is low distress and 5 is high distress associated with having type 1 diabetes.
Week 24 after randomization compared with baseline
Change in T1-DDAS Core Score from baseline to 36 weeks after randomization
Time Frame: Week 36 after randomization compared with baseline
The Type 1 Diabetes Distress Assessment System (T1-DDAS) Core Score is the average of 8 items on a scale from 1 to 5, where 1 is low distress and 5 is high distress associated with having type 1 diabetes.
Week 36 after randomization compared with baseline
Change in T1-DDAS Management Difficulties Source Score from baseline to 24 weeks after randomization
Time Frame: Week 24 after randomization compared with baseline
The Type 1 Diabetes Distress Assessment System (T1-DDAS) Management Difficulties Source Score is the average of 3 items rated from 1 to 5, where 1 is low distress and 5 is high distress. A higher score reflects higher distress related to management of type 1 diabetes.
Week 24 after randomization compared with baseline
Change in T1-DDAS Management Difficulties Source Score from baseline to 36 weeks after randomization
Time Frame: Week 36 after randomization compared with baseline
The Type 1 Diabetes Distress Assessment System (T1-DDAS) Management Difficulties Source Score is the average of 3 items rated from 1 to 5, where 1 is low distress and 5 is high distress. A higher score reflects higher distress related to management of type 1 diabetes.
Week 36 after randomization compared with baseline
Change in T1-DDAS Hypoglycemia Concerns Source Score from baseline to 24 weeks after randomization
Time Frame: Week 24 after randomization compared with baseline
The Type 1 Diabetes Distress Assessment System (T1-DDAS) Hypoglycemia Concerns Source Score is the average of 2 items rated from 1 to 5, where 1 is low distress and 5 is high distress. A higher score reflects higher distress related to hypoglycemia.
Week 24 after randomization compared with baseline
Change in T1-DDAS Hypoglycemia Concerns Source Score from baseline to 36 weeks after randomization
Time Frame: Week 36 after randomization compared with baseline
The Type 1 Diabetes Distress Assessment System (T1-DDAS) Hypoglycemia Concerns Source Score is the average of 2 items rated from 1 to 5, where 1 is low distress and 5 is high distress. A higher score reflects higher distress related to hypoglycemia.
Week 36 after randomization compared with baseline
Change in T1-DDAS Technology Challenges Source Score from baseline to 24 weeks after randomization
Time Frame: Week 24 after randomization compared with baseline
The Type 1 Diabetes Distress Assessment System (T1-DDAS) Technology Challenges Source Score is the average of 3 items rated from 1 to 5, where 1 is low distress and 5 is high distress. A higher score reflects higher distress related to using devices to manage type 1 diabetes.
Week 24 after randomization compared with baseline
Change in T1-DDAS Technology Challenges Source Score from baseline to 36 weeks after randomization
Time Frame: Week 36 after randomization compared with baseline
The Type 1 Diabetes Distress Assessment System (T1-DDAS) Technology Challenges Source Score is the average of 3 items rated from 1 to 5, where 1 is low distress and 5 is high distress. A higher score reflects higher distress related to using devices to manage type 1 diabetes.
Week 36 after randomization compared with baseline
Change in hemoglobin A1c (HbA1c) from baseline to 36 weeks
Time Frame: Enrollment and 36 weeks
Hemoglobin A1c will be processed by a central lab.
Enrollment and 36 weeks

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in mean number of low glucose events / week from baseline to 24 weeks after randomization
Time Frame: Week 24 after randomization compared with baseline
A single low glucose event is defined to start when the CGM drops below 70 mg/dL for at least three measurements and ends when the CGM rises above 69 mg/dL for at least three measurements. The two weeks before a study time point will be treated as representing blood glucose control at that study time point.
Week 24 after randomization compared with baseline
Change in mean number of low glucose events / week from baseline to 36 weeks after randomization
Time Frame: Week 36 after randomization compared with baseline
A single low glucose event is defined to start when the CGM drops below 70 mg/dL for at least three measurements and ends when the CGM rises above 69 mg/dL for at least three measurements. The two weeks before a study time point will be treated as representing blood glucose control at that study time point.
Week 36 after randomization compared with baseline
Change in total daily dose of insulin (units) from baseline to 24 weeks
Time Frame: Week 24 after randomization compared with baseline
Insulin use will be tracked using bluetooth-enabled insulin pens. The two weeks before a study time point will be treated as representing that study time point.
Week 24 after randomization compared with baseline
Change in total daily dose of insulin (units) from baseline to 36 weeks
Time Frame: Week 36 after randomization compared with baseline
Insulin use will be tracked using bluetooth-enabled insulin pens. The two weeks before a study time point will be treated as representing that study time point.
Week 36 after randomization compared with baseline
Change in total daily dose of insulin per kilogram (units/kg) from baseline to 36 weeks
Time Frame: Week 36 after randomization compared with baseline
Insulin use will be tracked using bluetooth-enabled insulin pens. The two weeks before a study time point will be treated as representing that study time point.
Week 36 after randomization compared with baseline
Change in body weight measured at 36 weeks after randomization
Time Frame: Week 36 after randomization compared with baseline
Maintaining or losing weight, rather than gaining, would be considered a positive outcome.
Week 36 after randomization compared with baseline

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Oregon Health and Science University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Leona M. & Harry B. Helmsley Charitable Trust

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Chair: Peter Jacobs, PhD, Oregon Health and Science University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 8, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 15, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 15, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 5, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 5, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 15, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 2, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 29, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 25791
  • 2207 (Other Grant/Funding Number: Helmsley Charitable Trust)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

IPD cannot be shared due to concerns about participant privacy and confidentiality.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

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