Trial Outcomes & Findings for Control-IQ Technology in Individuals With Type 2 Diabetes (NCT NCT05111301)

NCT ID: NCT05111301

Last Updated: 2024-03-06

Results Overview

CGM-measured percentage below 54 mg/dl, compared to baseline

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

30 participants

Primary outcome timeframe

14 weeks

Results posted on

2024-03-06

Participant Flow

Study participants were recruited from 3 clinical centers in the United States. All eligible participants were included without regard to gender, race, or ethnicity. Each site was asked to contribute \~10 participants (5 basal only / 5 MDI) toward the overall recruitment goal.

Participant milestones

Participant milestones
Measure
Basal Insulin Only (Group A)
* 2 to 4 week CGM run-in * 2 to 4 week pump run-in * 6 weeks Control-IQ technology use Control-IQ technology 1.5: 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.
Multiple Daily Injections (Group B)
* 2 to 4 week CGM run-in * 2 to 4 week pump run-in * 6 weeks Control-IQ technology use Control-IQ technology 1.5: 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.
Overall Study
STARTED
13
17
Overall Study
COMPLETED
13
17
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Control-IQ Technology in Individuals With Type 2 Diabetes

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Basal Insulin Only (Group A)
n=13 Participants
* 2 to 4 week CGM run-in * 2 to 4 week pump run-in * 6 weeks Control-IQ technology use Control-IQ technology 1.5: 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.
Multiple Daily Injections (Group B)
n=17 Participants
* 2 to 4 week CGM run-in * 2 to 4 week pump run-in * 6 weeks Control-IQ technology use Control-IQ technology 1.5: 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.
Total
n=30 Participants
Total of all reporting groups
Age, Categorical
<=18 years
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Age, Categorical
Between 18 and 65 years
11 Participants
n=99 Participants
15 Participants
n=107 Participants
26 Participants
n=206 Participants
Age, Categorical
>=65 years
2 Participants
n=99 Participants
2 Participants
n=107 Participants
4 Participants
n=206 Participants
Age, Continuous
54 years
STANDARD_DEVIATION 12 • n=99 Participants
54 years
STANDARD_DEVIATION 12 • n=107 Participants
54 years
STANDARD_DEVIATION 12 • n=206 Participants
Sex: Female, Male
Female
10 Participants
n=99 Participants
8 Participants
n=107 Participants
18 Participants
n=206 Participants
Sex: Female, Male
Male
3 Participants
n=99 Participants
9 Participants
n=107 Participants
12 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants
n=99 Participants
4 Participants
n=107 Participants
6 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
11 Participants
n=99 Participants
12 Participants
n=107 Participants
23 Participants
n=206 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
1 Participants
n=107 Participants
1 Participants
n=206 Participants
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
n=99 Participants
0 Participants
n=107 Participants
1 Participants
n=206 Participants
Race (NIH/OMB)
Asian
0 Participants
n=99 Participants
1 Participants
n=107 Participants
1 Participants
n=206 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Black or African American
3 Participants
n=99 Participants
1 Participants
n=107 Participants
4 Participants
n=206 Participants
Race (NIH/OMB)
White
9 Participants
n=99 Participants
14 Participants
n=107 Participants
23 Participants
n=206 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=99 Participants
1 Participants
n=107 Participants
1 Participants
n=206 Participants
Hemoglobin A1c
8.2 Percent of glycated hemoglobin
STANDARD_DEVIATION 0.9 • n=99 Participants
8.9 Percent of glycated hemoglobin
STANDARD_DEVIATION 1.3 • n=107 Participants
8.6 Percent of glycated hemoglobin
STANDARD_DEVIATION 1.2 • n=206 Participants

PRIMARY outcome

Timeframe: 14 weeks

CGM-measured percentage below 54 mg/dl, compared to baseline

Outcome measures

Outcome measures
Measure
Overall
n=30 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Basal Insulin Only (Group A)
n=13 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Multiple Daily Injections (Group B)
n=17 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
CGM Time Below 54 mg/dL
Baseline
0.00 percentage of time
Interval 0.0 to 0.11
0.00 percentage of time
Interval 0.0 to 0.11
0.00 percentage of time
Interval 0.0 to 0.0
CGM Time Below 54 mg/dL
Open-Loop
0.00 percentage of time
Interval 0.0 to 0.08
0.00 percentage of time
Interval 0.0 to 0.12
0.00 percentage of time
Interval 0.0 to 0.03
CGM Time Below 54 mg/dL
Control-IQ
0.02 percentage of time
Interval 0.0 to 0.07
0.02 percentage of time
Interval 0.01 to 0.08
0.02 percentage of time
Interval 0.0 to 0.05

PRIMARY outcome

Timeframe: 14 weeks

CGM-measured percentage above 180 mg/dl, compared to baseline

Outcome measures

Outcome measures
Measure
Overall
n=30 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Basal Insulin Only (Group A)
n=13 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Multiple Daily Injections (Group B)
n=17 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
CGM Time Above 180 mg/dL
Baseline
44 percentage of time
Standard Deviation 25
39 percentage of time
Standard Deviation 15
48 percentage of time
Standard Deviation 31
CGM Time Above 180 mg/dL
Open-Loop
37 percentage of time
Standard Deviation 20
34 percentage of time
Standard Deviation 22
39 percentage of time
Standard Deviation 19
CGM Time Above 180 mg/dL
Control-IQ
29 percentage of time
Standard Deviation 18
26 percentage of time
Standard Deviation 15
31 percentage of time
Standard Deviation 20

SECONDARY outcome

Timeframe: 14 weeks

CGM-measured percentage in range 70-180 mg/dl, compared to baseline

Outcome measures

Outcome measures
Measure
Overall
n=30 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Basal Insulin Only (Group A)
n=13 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Multiple Daily Injections (Group B)
n=17 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
CGM Time In Range 70-180 mg/dL
Baseline
56 percentage of time
Standard Deviation 25
61 percentage of time
Standard Deviation 15
52 percentage of time
Standard Deviation 31
CGM Time In Range 70-180 mg/dL
Open-Loop
63 percentage of time
Standard Deviation 20
66 percentage of time
Standard Deviation 22
61 percentage of time
Standard Deviation 18
CGM Time In Range 70-180 mg/dL
Control-IQ
71 percentage of time
Standard Deviation 18
74 percentage of time
Standard Deviation 15
68 percentage of time
Standard Deviation 20

SECONDARY outcome

Timeframe: 14 weeks

CGM-measured percentage below 70 mg/dl, compared to baseline

Outcome measures

Outcome measures
Measure
Overall
n=30 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Basal Insulin Only (Group A)
n=13 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Multiple Daily Injections (Group B)
n=17 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
CGM Time Below 70 mg/dL
Baseline
0.05 percentage of time
Interval 0.0 to 0.47
0.00 percentage of time
Interval 0.0 to 0.25
0.11 percentage of time
Interval 0.0 to 0.47
CGM Time Below 70 mg/dL
Open-Loop
0.10 percentage of time
Interval 0.0 to 0.51
0.19 percentage of time
Interval 0.0 to 0.35
0.03 percentage of time
Interval 0.0 to 0.6
CGM Time Below 70 mg/dL
Control-IQ
0.12 percentage of time
Interval 0.04 to 0.34
0.09 percentage of time
Interval 0.05 to 0.25
0.13 percentage of time
Interval 0.03 to 0.36

SECONDARY outcome

Timeframe: 14 weeks

CGM-measured percentage above 250 mg/dl, compared to baseline

Outcome measures

Outcome measures
Measure
Overall
n=30 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Basal Insulin Only (Group A)
n=13 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Multiple Daily Injections (Group B)
n=17 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
CGM Time Above 250 mg/dL
Baseline
8.5 percentage of time
Interval 1.7 to 21.1
12.9 percentage of time
Interval 1.7 to 14.7
6.8 percentage of time
Interval 2.4 to 29.6
CGM Time Above 250 mg/dL
Open-Loop
6.7 percentage of time
Interval 2.1 to 12.2
8.1 percentage of time
Interval 0.9 to 16.9
6.3 percentage of time
Interval 3.8 to 10.0
CGM Time Above 250 mg/dL
Control-IQ
2.9 percentage of time
Interval 1.1 to 12.8
1.9 percentage of time
Interval 0.8 to 7.5
2.9 percentage of time
Interval 1.3 to 13.1

SECONDARY outcome

Timeframe: 14 weeks

CGM-measured percentage in range 70-140 mg/dl, compared to baseline

Outcome measures

Outcome measures
Measure
Overall
n=30 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Basal Insulin Only (Group A)
n=13 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Multiple Daily Injections (Group B)
n=17 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
CGM Time In Range 70-140 mg/dL
Baseline
30 percentage of time
Standard Deviation 17
32 percentage of time
Standard Deviation 13
28 percentage of time
Standard Deviation 20
CGM Time In Range 70-140 mg/dL
Open-Loop
34 percentage of time
Standard Deviation 22
38 percentage of time
Standard Deviation 23
31 percentage of time
Standard Deviation 21
CGM Time In Range 70-140 mg/dL
Control-IQ
42 percentage of time
Standard Deviation 18
45 percentage of time
Standard Deviation 17
40 percentage of time
Standard Deviation 19

SECONDARY outcome

Timeframe: 14 weeks

CGM measured mean glucose mg/dL, compared to baseline

Outcome measures

Outcome measures
Measure
Overall
n=30 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Basal Insulin Only (Group A)
n=13 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Multiple Daily Injections (Group B)
n=17 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
CGM Mean Glucose mg/dL
Control-IQ
163 mg/dL
Standard Deviation 28
159 mg/dL
Standard Deviation 23
166 mg/dL
Standard Deviation 32
CGM Mean Glucose mg/dL
Baseline
184 mg/dL
Standard Deviation 42
174 mg/dL
Standard Deviation 22
192 mg/dL
Standard Deviation 52
CGM Mean Glucose mg/dL
Open-Loop
172 mg/dL
Standard Deviation 32
170 mg/dL
Standard Deviation 35
174 mg/dL
Standard Deviation 30

SECONDARY outcome

Timeframe: 14 weeks

CGM measured glucose variability measured with the coefficient of variation (CV), compared to baseline

Outcome measures

Outcome measures
Measure
Overall
n=30 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Basal Insulin Only (Group A)
n=13 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Multiple Daily Injections (Group B)
n=17 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Coefficient of Variation (CV)
Baseline
28 percentage of coefficient of variation
Interval 24.0 to 31.0
29 percentage of coefficient of variation
Interval 27.0 to 31.0
25 percentage of coefficient of variation
Interval 23.0 to 32.0
Coefficient of Variation (CV)
Open-Loop
29 percentage of coefficient of variation
Interval 23.0 to 34.0
30 percentage of coefficient of variation
Interval 23.0 to 31.0
29 percentage of coefficient of variation
Interval 23.0 to 34.0
Coefficient of Variation (CV)
Control-IQ
28 percentage of coefficient of variation
Interval 24.0 to 31.0
27 percentage of coefficient of variation
Interval 24.0 to 30.0
30 percentage of coefficient of variation
Interval 24.0 to 31.0

OTHER_PRE_SPECIFIED outcome

Timeframe: 14 weeks

The number of severe hypoglycemic events (needing assistance)

Outcome measures

Outcome measures
Measure
Overall
n=30 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Basal Insulin Only (Group A)
n=13 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Multiple Daily Injections (Group B)
n=17 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Severe Hypoglycemia (Needing Assistance)
0 events
0 events
0 events

OTHER_PRE_SPECIFIED outcome

Timeframe: 14 weeks

The number of DKA events

Outcome measures

Outcome measures
Measure
Overall
n=30 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Basal Insulin Only (Group A)
n=13 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Multiple Daily Injections (Group B)
n=17 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
DKA
0 events
0 events
0 events

OTHER_PRE_SPECIFIED outcome

Timeframe: 14 weeks

The number of Hyperosmolar Hyperglycemic Syndrome events

Outcome measures

Outcome measures
Measure
Overall
n=30 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Basal Insulin Only (Group A)
n=13 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Multiple Daily Injections (Group B)
n=17 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Hyperosmolar Hyperglycemic Syndrome
0 events
0 events
0 events

OTHER_PRE_SPECIFIED outcome

Timeframe: 14 weeks

The number of Serious Adverse Events

Outcome measures

Outcome measures
Measure
Overall
n=30 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Basal Insulin Only (Group A)
n=13 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Multiple Daily Injections (Group B)
n=17 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
All Serious Adverse Events
0 events
0 events
0 events

OTHER_PRE_SPECIFIED outcome

Timeframe: 14 weeks

The number of Unanticipated Adverse Device Effects

Outcome measures

Outcome measures
Measure
Overall
n=30 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Basal Insulin Only (Group A)
n=13 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Multiple Daily Injections (Group B)
n=17 Participants
* 2 to 4 week CGM run-in with insulin injections (baseline) * 2 to 4 week open loop with insulin pump and Dexcom G6 sensor * 6 weeks Control-IQ technology 1.5 use Control-IQ technology 1.5: All subjects wearing the t:slim X2 insulin pump with Control-IQ technology 1.5, and wearing the Dexcom G6 sensor.
Unanticipated Adverse Device Effects
0 events
0 events
0 events

Adverse Events

Basal Insulin Only (Group A)

Serious events: 0 serious events
Other events: 1 other events
Deaths: 0 deaths

Multiple Daily Injections (Group B)

Serious events: 0 serious events
Other events: 5 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Basal Insulin Only (Group A)
n=13 participants at risk
* 2 to 4 week CGM run-in * 2 to 4 week pump run-in * 6 weeks Control-IQ technology use Control-IQ technology 1.5: 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.
Multiple Daily Injections (Group B)
n=17 participants at risk
* 2 to 4 week CGM run-in * 2 to 4 week pump run-in * 6 weeks Control-IQ technology use Control-IQ technology 1.5: 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.
Endocrine disorders
Hyperglycemia
0.00%
0/13 • 14 weeks
5.9%
1/17 • Number of events 1 • 14 weeks
Respiratory, thoracic and mediastinal disorders
COVID-19
0.00%
0/13 • 14 weeks
11.8%
2/17 • Number of events 2 • 14 weeks
Ear and labyrinth disorders
Cerumen impaction
0.00%
0/13 • 14 weeks
5.9%
1/17 • Number of events 1 • 14 weeks
Skin and subcutaneous tissue disorders
Sunburn
7.7%
1/13 • Number of events 1 • 14 weeks
0.00%
0/17 • 14 weeks
Respiratory, thoracic and mediastinal disorders
Asthma
0.00%
0/13 • 14 weeks
5.9%
1/17 • Number of events 1 • 14 weeks
Cardiac disorders
Chest Pain
0.00%
0/13 • 14 weeks
5.9%
1/17 • Number of events 1 • 14 weeks

Additional Information

Supervisor, Clinical Operations

Tandem Diabetes Care

Phone: (877) 801-6901

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place