Control-IQ Technology in Individuals With Type 2 Diabetes (2IQ)
Primary Purpose
Type 2 Diabetes Treated With Insulin
Status
Completed
Phase
Not Applicable
Locations
United States
Study Type
Interventional
Intervention
Control-IQ technology 1.5
Sponsored by

About this trial
This is an interventional treatment trial for Type 2 Diabetes Treated With Insulin focused on measuring type 2 diabetes, Control-IQ technology, automated insulin dosing, automated insulin delivery
Eligibility Criteria
Inclusion Criteria:
- Age ≥18 years old and residing in the US
- Clinical diagnosis, based on investigator assessment, of type 2 diabetes for at least one year
- Using a stable insulin dose for at least 3 months, to include A) basal insulin only, or B) MDI, to include CSII (including use of AID systems other than Tandem Control-IQ technology)
- Total daily insulin dose ≤200 units/day
- Willing to use only aspart (novolog) or lispro (humalog) insulin with the study pump, with no use of concentrated insulin above U-100, long-acting basal insulin injections, or inhaled insulin
- For females, not currently known to be pregnant
- If female and sexually active, must agree to use a form of contraception to prevent pregnancy while a participant in the study. A negative serum or urine pregnancy test will be required for all females of child-bearing potential. Participants who become pregnant will be discontinued from the study. Also, participants who during the study develop and express the intention to become pregnant within the timespan of the study will be discontinued.
- HbA1c ≥ 7.5% and ≤ 12% at screening
- Has current glucagon product to treat severe hypoglycemia (injectable or nasal) at home (will provide prescription if they do not have one)
- Be willing to exercise for 30 minutes or more at least once per week during the main phase of the study
- Has the ability to read and understand written English
- Investigator believes that the participant can successfully and safely operate all study devices and is capable of adhering to the protocol and completing the study.
Exclusion Criteria:
- Prior use of Tandem t:slim X2 insulin pump with Control-IQ technology
- Two or more episodes of severe hypoglycemia (needing assistance) in the past 6 months
- History of inpatient psychiatric treatment in the past 6 months
- History of drug abuse (defined as any illicit drug use) or history of alcohol abuse prior to screening or unwillingness to agree to abstain from illicit drugs throughout the study.
- History of significant heart disease, lung disease, liver disease, chronic kidney disease, or other systemic disease determined by investigator to interfere with the study, or make required exercise unsafe
- History of significant vision, hearing, or dexterity problems that will impair use of the closed loop system
- Use of glucocorticoids, beta blockers, sulfonylureas, meglitinides or other medications specifically listed in the protocol or determined by investigator to interfere with the study
- Unstable dose of SGLT-2 inhibitor, GLP-1 receptor agonist, or other adjuvant medication specifically listed in the protocol, or starting a new glucose lowering agent during the trial.
- Unstable dose of any medication used for weight loss, as listed in the protocol, or starting a new medication for weight loss during the trial.
- Abnormal screening electrocardiogram consistent with increased risk during exercise, such as arrhythmia, ischemia, or prolonged QTc interval (>450 ms)
- History of hemodialysis
- History of adrenal insufficiency
- Uncontrolled hypo- or hyperthyroidism
- Significant diabetes related complications, based on investigator assessment
- Immediate family member (spouse, biological or legal guardian, child, sibling, parent) who is an investigative site personnel directly affiliated with this study or who is an employee of Tandem Diabetes Care, Inc.
Sites / Locations
- Mayo Clinic
- Icahn School of Medicine at Mt. Sinai
- Texas Diabetes and Endocrinology
Arms of the Study
Arm 1
Arm 2
Arm Type
Experimental
Experimental
Arm Label
Basal Insulin Only (Group A)
Multiple Daily Injections (Group B)
Arm Description
2 to 4 week CGM run-in 2 to 4 week pump run-in 6 weeks Control-IQ technology use
2 to 4 week CGM run-in 2 to 4 week pump run-in 6 weeks Control-IQ technology use
Outcomes
Primary Outcome Measures
CGM Time Below 54 mg/dL (Non-Inferiority)
CGM-measured percentage below 54 mg/dl, non-inferiority compared to baseline
CGM Time Above 180 mg/dL
CGM-measured percentage above 180 mg/dl, compared to baseline
Secondary Outcome Measures
CGM Time In Range 70-180 mg/dL
CGM-measured percentage in range 70-180 mg/dl, compared to baseline
CGM Time Below 70 mg/dL
CGM-measured percentage below 70 mg/dl, compared to baseline
CGM Time Above 250 mg/dL
CGM-measured percentage above 250 mg/dl, compared to baseline
CGM Time In Range 70-140 mg/dL
CGM-measured percentage in range 70-140 mg/dl, compared to baseline
Post-prandial glycemic peak mg/dL
Post-prandial glycemic peak (up to 4 hours) after breakfast, lunch, and dinner
4-hour post meal glucose AUC
4-hour post meal glucose AUC
CGM mean glucose mg/dL
CGM measured mean glucose mg/dL, compared to baseline
Coefficient of variation (CV)
CGM measured glucose variability measured with the coefficient of variation (CV), compared to baseline
Standard Deviation (SD)
CGM measured glucose variability measured with the standard deviation (SD), compared to baseline
CGM metrics by time of day
Calculate all CGM metrics listed above (including the primary outcome) for: All 24 hours of the day, Daytime only (06:00AM to 00:00AM), Nighttime only (00:00AM to 06:00AM), compared to baseline.
CGM metrics during and immediately after the exercise challenges (2 hours afterwards included)
Calculate all CGM metrics and adverse event rates during and immediately after the scheduled exercise sessions (to 2 hours after exercise). These metrics related to exercise will be analyzed separately and excluded from the main analysis.
CGM metrics overnight after the challenges
Calculate all CGM metrics and adverse event rates overnight after the challenges. These metrics related to exercise will be analyzed separately and excluded from the main analysis.
Total daily insulin use (units/day)
Total daily insulin use (units/day), compared to baseline
Total basal insulin (units/day)
Total basal insulin (units/day), compared to baseline
Total bolus insulin (units/day)
Total bolus insulin (units/day), compared to baseline
Weight (kg)
Change in weight (kg) over the course of the study
Body Mass Index
Change in body mass index (kg/m2) over the course of the study
Full Information
NCT ID
NCT05111301
First Posted
October 28, 2021
Last Updated
September 2, 2022
Sponsor
Tandem Diabetes Care, Inc.
Collaborators
Jaeb Center for Health Research
1. Study Identification
Unique Protocol Identification Number
NCT05111301
Brief Title
Control-IQ Technology in Individuals With Type 2 Diabetes
Acronym
2IQ
Official Title
Control-IQ Technology in Individuals With Type 2 Diabetes (2IQ)
Study Type
Interventional
2. Study Status
Record Verification Date
September 2022
Overall Recruitment Status
Completed
Study Start Date
November 30, 2021 (Actual)
Primary Completion Date
August 10, 2022 (Actual)
Study Completion Date
August 18, 2022 (Actual)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Tandem Diabetes Care, Inc.
Collaborators
Jaeb Center for Health Research
4. Oversight
Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
Yes
Device Product Not Approved or Cleared by U.S. FDA
Yes
Data Monitoring Committee
No
5. Study Description
Brief Summary
A prospective, multicenter study of 6 weeks of home use of Control-IQ technology in individuals with type 2 diabetes age 18 and older.
Detailed Description
The objective of this prospective, multicenter study is to assess safety and explore glycemic outcomes associated with use of Control-IQ technology in adults with type 2 diabetes who require insulin. After an initial run-in period, all participants will use the study system (pump and CGM) for 6 weeks. Participants will perform exercise challenges once each week during the study.
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Type 2 Diabetes Treated With Insulin
Keywords
type 2 diabetes, Control-IQ technology, automated insulin dosing, automated insulin delivery
7. Study Design
Primary Purpose
Treatment
Study Phase
Not Applicable
Interventional Study Model
Parallel Assignment
Model Description
Multicenter, prospective clinical trial
Masking
None (Open Label)
Allocation
Non-Randomized
Enrollment
33 (Actual)
8. Arms, Groups, and Interventions
Arm Title
Basal Insulin Only (Group A)
Arm Type
Experimental
Arm Description
2 to 4 week CGM run-in
2 to 4 week pump run-in
6 weeks Control-IQ technology use
Arm Title
Multiple Daily Injections (Group B)
Arm Type
Experimental
Arm Description
2 to 4 week CGM run-in
2 to 4 week pump run-in
6 weeks Control-IQ technology use
Intervention Type
Device
Intervention Name(s)
Control-IQ technology 1.5
Intervention Description
All subjects wearing the t-slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Outcomes will be analyzed overall and subgroup analysis will be performed by Group, and by baseline A1c level.
Primary Outcome Measure Information:
Title
CGM Time Below 54 mg/dL (Non-Inferiority)
Description
CGM-measured percentage below 54 mg/dl, non-inferiority compared to baseline
Time Frame
6 weeks
Title
CGM Time Above 180 mg/dL
Description
CGM-measured percentage above 180 mg/dl, compared to baseline
Time Frame
6 weeks
Secondary Outcome Measure Information:
Title
CGM Time In Range 70-180 mg/dL
Description
CGM-measured percentage in range 70-180 mg/dl, compared to baseline
Time Frame
6 weeks
Title
CGM Time Below 70 mg/dL
Description
CGM-measured percentage below 70 mg/dl, compared to baseline
Time Frame
6 weeks
Title
CGM Time Above 250 mg/dL
Description
CGM-measured percentage above 250 mg/dl, compared to baseline
Time Frame
6 weeks
Title
CGM Time In Range 70-140 mg/dL
Description
CGM-measured percentage in range 70-140 mg/dl, compared to baseline
Time Frame
6 weeks
Title
Post-prandial glycemic peak mg/dL
Description
Post-prandial glycemic peak (up to 4 hours) after breakfast, lunch, and dinner
Time Frame
6 weeks
Title
4-hour post meal glucose AUC
Description
4-hour post meal glucose AUC
Time Frame
6 weeks
Title
CGM mean glucose mg/dL
Description
CGM measured mean glucose mg/dL, compared to baseline
Time Frame
6 weeks
Title
Coefficient of variation (CV)
Description
CGM measured glucose variability measured with the coefficient of variation (CV), compared to baseline
Time Frame
6 weeks
Title
Standard Deviation (SD)
Description
CGM measured glucose variability measured with the standard deviation (SD), compared to baseline
Time Frame
6 weeks
Title
CGM metrics by time of day
Description
Calculate all CGM metrics listed above (including the primary outcome) for: All 24 hours of the day, Daytime only (06:00AM to 00:00AM), Nighttime only (00:00AM to 06:00AM), compared to baseline.
Time Frame
6 weeks
Title
CGM metrics during and immediately after the exercise challenges (2 hours afterwards included)
Description
Calculate all CGM metrics and adverse event rates during and immediately after the scheduled exercise sessions (to 2 hours after exercise). These metrics related to exercise will be analyzed separately and excluded from the main analysis.
Time Frame
6 weeks
Title
CGM metrics overnight after the challenges
Description
Calculate all CGM metrics and adverse event rates overnight after the challenges. These metrics related to exercise will be analyzed separately and excluded from the main analysis.
Time Frame
6 weeks
Title
Total daily insulin use (units/day)
Description
Total daily insulin use (units/day), compared to baseline
Time Frame
6 weeks
Title
Total basal insulin (units/day)
Description
Total basal insulin (units/day), compared to baseline
Time Frame
6 weeks
Title
Total bolus insulin (units/day)
Description
Total bolus insulin (units/day), compared to baseline
Time Frame
6 weeks
Title
Weight (kg)
Description
Change in weight (kg) over the course of the study
Time Frame
6 weeks
Title
Body Mass Index
Description
Change in body mass index (kg/m2) over the course of the study
Time Frame
6 weeks
Other Pre-specified Outcome Measures:
Title
Severe hypoglycemia (needing assistance)
Description
The number of severe hypoglycemic events and the event rate per 100 person-years during closed-loop use
Time Frame
6 weeks
Title
DKA
Description
The number of DKA events and the event rate per 100 person-years during closed-loop use
Time Frame
6 weeks
Title
Hyperosmolar Hyperglycemic Syndrome
Description
The number of Hyperosmolar Hyperglycemic Syndrome events and the event rate per 100 person-years during closed-loop use
Time Frame
6 weeks
Title
All Serious Adverse Events
Description
The number of Serious Adverse Events and the event rate per 100 person-years during closed-loop use
Time Frame
6 weeks
Title
Unanticipated Adverse Device Effects
Description
The number of Unanticipated Adverse Device Effects and the event rate per 100 person-years during closed-loop use
Time Frame
6 weeks
10. Eligibility
Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria:
Age ≥18 years old and residing in the US
Clinical diagnosis, based on investigator assessment, of type 2 diabetes for at least one year
Using a stable insulin dose for at least 3 months, to include A) basal insulin only, or B) MDI, to include CSII (including use of AID systems other than Tandem Control-IQ technology)
Total daily insulin dose ≤200 units/day
Willing to use only aspart (novolog) or lispro (humalog) insulin with the study pump, with no use of concentrated insulin above U-100, long-acting basal insulin injections, or inhaled insulin
For females, not currently known to be pregnant
If female and sexually active, must agree to use a form of contraception to prevent pregnancy while a participant in the study. A negative serum or urine pregnancy test will be required for all females of child-bearing potential. Participants who become pregnant will be discontinued from the study. Also, participants who during the study develop and express the intention to become pregnant within the timespan of the study will be discontinued.
HbA1c ≥ 7.5% and ≤ 12% at screening
Has current glucagon product to treat severe hypoglycemia (injectable or nasal) at home (will provide prescription if they do not have one)
Be willing to exercise for 30 minutes or more at least once per week during the main phase of the study
Has the ability to read and understand written English
Investigator believes that the participant can successfully and safely operate all study devices and is capable of adhering to the protocol and completing the study.
Exclusion Criteria:
Prior use of Tandem t:slim X2 insulin pump with Control-IQ technology
Two or more episodes of severe hypoglycemia (needing assistance) in the past 6 months
History of inpatient psychiatric treatment in the past 6 months
History of drug abuse (defined as any illicit drug use) or history of alcohol abuse prior to screening or unwillingness to agree to abstain from illicit drugs throughout the study.
History of significant heart disease, lung disease, liver disease, chronic kidney disease, or other systemic disease determined by investigator to interfere with the study, or make required exercise unsafe
History of significant vision, hearing, or dexterity problems that will impair use of the closed loop system
Use of glucocorticoids, beta blockers, sulfonylureas, meglitinides or other medications specifically listed in the protocol or determined by investigator to interfere with the study
Unstable dose of SGLT-2 inhibitor, GLP-1 receptor agonist, or other adjuvant medication specifically listed in the protocol, or starting a new glucose lowering agent during the trial.
Unstable dose of any medication used for weight loss, as listed in the protocol, or starting a new medication for weight loss during the trial.
Abnormal screening electrocardiogram consistent with increased risk during exercise, such as arrhythmia, ischemia, or prolonged QTc interval (>450 ms)
History of hemodialysis
History of adrenal insufficiency
Uncontrolled hypo- or hyperthyroidism
Significant diabetes related complications, based on investigator assessment
Immediate family member (spouse, biological or legal guardian, child, sibling, parent) who is an investigative site personnel directly affiliated with this study or who is an employee of Tandem Diabetes Care, Inc.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Carol Levy, MD
Organizational Affiliation
Icahn School of Medicine at Mt. Sinai
Official's Role
Study Chair
Facility Information:
Facility Name
Mayo Clinic
City
Rochester
State/Province
Minnesota
ZIP/Postal Code
55905
Country
United States
Facility Name
Icahn School of Medicine at Mt. Sinai
City
New York
State/Province
New York
ZIP/Postal Code
10029
Country
United States
Facility Name
Texas Diabetes and Endocrinology
City
Austin
State/Province
Texas
ZIP/Postal Code
78731
Country
United States
12. IPD Sharing Statement
Plan to Share IPD
No
Learn more about this trial
Control-IQ Technology in Individuals With Type 2 Diabetes
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