Trial Outcomes & Findings for Investigational Extended Wear Insulin Infusion Set in People With Type 1 Diabetes (NCT NCT06273124)

NCT ID: NCT06273124

Last Updated: 2025-09-24

Results Overview

7-day infusion set survival for primary outcome reasons as defined in the protocol (Hyperglycemia and failure to respond to boluses, Hyperglycemia with ketones \>1.0 mmol/L, or Investigator advised), for participants using Humalog.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

260 participants

Primary outcome timeframe

12 weeks

Results posted on

2025-09-24

Participant Flow

Participant milestones

Participant milestones
Measure
SteadiSet Extended Wear Infusion Set - Humalog
Each participant will be asked to wear the Investigational Extended Wear Infusion Set for up to 168 hours for 12 consecutive wear periods with the Tandem t:slim X2 insulin pump with Control-IQ technology, and wearing the Dexcom G6 or G7 sensor. Approximately half of the participants in the study were using Humalog insulin.
SteaduSet Extended Wear Infusion Set - Novolog
Each participant will be asked to wear the Investigational Extended Wear Infusion Set for up to 168 hours for 12 consecutive wear periods with the Tandem t:slim X2 insulin pump with Control-IQ technology, and wearing the Dexcom G6 or G7 sensor. Approximately half of the participants in the study were using Novolog insulin.
Overall Study
STARTED
128
132
Overall Study
COMPLETED
124
126
Overall Study
NOT COMPLETED
4
6

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Investigational Extended Wear Insulin Infusion Set in People With Type 1 Diabetes

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
SteadiSet Extended Wear Infusion Set - Humalog
n=128 Participants
Each participant will be asked to wear the Investigational Extended Wear Infusion Set for up to 168 hours for 12 consecutive wear periods with the Tandem t:slim X2 insulin pump with Control-IQ technology, and wearing the Dexcom G6 or G7 sensor. Approximately half of the participants in the study were using Humalog insulin.
SteaduSet Extended Wear Infusion Set - Novolog
n=132 Participants
Each participant will be asked to wear the Investigational Extended Wear Infusion Set for up to 168 hours for 12 consecutive wear periods with the Tandem t:slim X2 insulin pump with Control-IQ technology, and wearing the Dexcom G6 or G7 sensor. Approximately half of the participants in the study were using Novolog insulin.
Total
n=260 Participants
Total of all reporting groups
Age, Continuous
40.9 years
STANDARD_DEVIATION 16.0 • n=5 Participants
46.8 years
STANDARD_DEVIATION 18.0 • n=7 Participants
43.9 years
STANDARD_DEVIATION 17.3 • n=5 Participants
Sex: Female, Male
Female
83 Participants
n=5 Participants
67 Participants
n=7 Participants
150 Participants
n=5 Participants
Sex: Female, Male
Male
45 Participants
n=5 Participants
65 Participants
n=7 Participants
110 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
4 Participants
n=5 Participants
7 Participants
n=7 Participants
11 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
124 Participants
n=5 Participants
125 Participants
n=7 Participants
249 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
7 Participants
n=5 Participants
2 Participants
n=7 Participants
9 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
3 Participants
n=5 Participants
1 Participants
n=7 Participants
4 Participants
n=5 Participants
Race (NIH/OMB)
White
115 Participants
n=5 Participants
125 Participants
n=7 Participants
240 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
3 Participants
n=5 Participants
3 Participants
n=7 Participants
6 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
1 Participants
n=7 Participants
1 Participants
n=5 Participants
Region of Enrollment
United States
128 participants
n=5 Participants
132 participants
n=7 Participants
260 participants
n=5 Participants

PRIMARY outcome

Timeframe: 12 weeks

Population: To be considered for analysis in the primary outcome, participants had to have successfully inserted at least 6 sets per the study protocol.

7-day infusion set survival for primary outcome reasons as defined in the protocol (Hyperglycemia and failure to respond to boluses, Hyperglycemia with ketones \>1.0 mmol/L, or Investigator advised), for participants using Humalog.

Outcome measures

Outcome measures
Measure
SteadiSet Extended Wear Infusion Set - Humalog
n=1500 Number of Infusion Sets
Each participant will be asked to wear the Investigational Extended Wear Infusion Set for up to 168 hours for 12 consecutive wear periods with the Tandem t:slim X2 insulin pump with Control-IQ technology, and wearing the Dexcom G6 or G7 sensor. Approximately half of the participants in the study were using Humalog insulin.
7 Day Survival of Infusion Set for Primary Outcome Measure - Humalog
95 percentage of infusion set wears
Standard Error 0.7

PRIMARY outcome

Timeframe: 12 weeks

Population: To be considered for analysis in the primary outcome, participants had to have successfully inserted at least 6 sets per the study protocol.

7-day infusion set survival for primary outcome reasons as defined in the protocol (Hyperglycemia and failure to respond to boluses, Hyperglycemia with ketones \>1.0 mmol/L, or Investigator advised), for participants using Novolog.

Outcome measures

Outcome measures
Measure
SteadiSet Extended Wear Infusion Set - Humalog
n=1527 Number of Infusion Sets
Each participant will be asked to wear the Investigational Extended Wear Infusion Set for up to 168 hours for 12 consecutive wear periods with the Tandem t:slim X2 insulin pump with Control-IQ technology, and wearing the Dexcom G6 or G7 sensor. Approximately half of the participants in the study were using Humalog insulin.
7 Day Survival of Infusion Set for Primary Outcome Measure - Novolog
95 percentage of infusion set wears
Standard Error 0.8

Adverse Events

SteadiSet Extended Wear Infusion Set - Humalog

Serious events: 0 serious events
Other events: 14 other events
Deaths: 0 deaths

SteaduSet Extended Wear Infusion Set - Novolog

Serious events: 1 serious events
Other events: 29 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
SteadiSet Extended Wear Infusion Set - Humalog
n=128 participants at risk
Each participant will be asked to wear the Investigational Extended Wear Infusion Set for up to 168 hours for 12 consecutive wear periods with the Tandem t:slim X2 insulin pump with Control-IQ technology, and wearing the Dexcom G6 or G7 sensor. Approximately half of the participants in the study were using Humalog insulin.
SteaduSet Extended Wear Infusion Set - Novolog
n=132 participants at risk
Each participant will be asked to wear the Investigational Extended Wear Infusion Set for up to 168 hours for 12 consecutive wear periods with the Tandem t:slim X2 insulin pump with Control-IQ technology, and wearing the Dexcom G6 or G7 sensor. Approximately half of the participants in the study were using Novolog insulin.
Endocrine disorders
Severe Hypoglycemia
0.00%
0/128 • 12 Weeks
0.76%
1/132 • Number of events 1 • 12 Weeks
Endocrine disorders
Diabetic Ketoacidosis
0.00%
0/128 • 12 Weeks
0.00%
0/132 • 12 Weeks
General disorders
Other Serious Adverse Event
0.00%
0/128 • 12 Weeks
0.00%
0/132 • 12 Weeks

Other adverse events

Other adverse events
Measure
SteadiSet Extended Wear Infusion Set - Humalog
n=128 participants at risk
Each participant will be asked to wear the Investigational Extended Wear Infusion Set for up to 168 hours for 12 consecutive wear periods with the Tandem t:slim X2 insulin pump with Control-IQ technology, and wearing the Dexcom G6 or G7 sensor. Approximately half of the participants in the study were using Humalog insulin.
SteaduSet Extended Wear Infusion Set - Novolog
n=132 participants at risk
Each participant will be asked to wear the Investigational Extended Wear Infusion Set for up to 168 hours for 12 consecutive wear periods with the Tandem t:slim X2 insulin pump with Control-IQ technology, and wearing the Dexcom G6 or G7 sensor. Approximately half of the participants in the study were using Novolog insulin.
Infections and infestations
Abscess NOS
0.00%
0/128 • 12 Weeks
0.76%
1/132 • Number of events 1 • 12 Weeks
Infections and infestations
Atopic dermatitis
0.00%
0/128 • 12 Weeks
0.76%
1/132 • Number of events 2 • 12 Weeks
Infections and infestations
Candidiasis
0.00%
0/128 • 12 Weeks
0.76%
1/132 • Number of events 1 • 12 Weeks
Infections and infestations
Cellulitis
0.78%
1/128 • Number of events 1 • 12 Weeks
3.0%
4/132 • Number of events 4 • 12 Weeks
Skin and subcutaneous tissue disorders
Contact dermatitis
0.78%
1/128 • Number of events 1 • 12 Weeks
0.00%
0/132 • 12 Weeks
Musculoskeletal and connective tissue disorders
Cycling accident
0.00%
0/128 • 12 Weeks
0.76%
1/132 • Number of events 1 • 12 Weeks
Skin and subcutaneous tissue disorders
Erythematous conditions
0.00%
0/128 • 12 Weeks
1.5%
2/132 • Number of events 3 • 12 Weeks
Endocrine disorders
Hyperglycemia with or without Ketosis
0.78%
1/128 • Number of events 1 • 12 Weeks
2.3%
3/132 • Number of events 3 • 12 Weeks
Infections and infestations
Infection
3.1%
4/128 • Number of events 4 • 12 Weeks
0.76%
1/132 • Number of events 1 • 12 Weeks
Skin and subcutaneous tissue disorders
Injection site discomfort
2.3%
3/128 • Number of events 6 • 12 Weeks
0.00%
0/132 • 12 Weeks
Infections and infestations
Injection site irritation
0.00%
0/128 • 12 Weeks
2.3%
3/132 • Number of events 3 • 12 Weeks
Injury, poisoning and procedural complications
Injury
0.00%
0/128 • 12 Weeks
0.76%
1/132 • Number of events 1 • 12 Weeks
Skin and subcutaneous tissue disorders
Localized superficial swelling, mass, or lump
0.78%
1/128 • Number of events 3 • 12 Weeks
0.00%
0/132 • 12 Weeks
Skin and subcutaneous tissue disorders
Medical device site inflammation
0.00%
0/128 • 12 Weeks
0.76%
1/132 • Number of events 1 • 12 Weeks
Nervous system disorders
Neurologic disorder NOS
0.78%
1/128 • Number of events 1 • 12 Weeks
0.00%
0/132 • 12 Weeks
General disorders
Pain in face
0.00%
0/128 • 12 Weeks
0.76%
1/132 • Number of events 1 • 12 Weeks
Infections and infestations
Pustule
0.78%
1/128 • Number of events 1 • 12 Weeks
0.00%
0/132 • 12 Weeks
Skin and subcutaneous tissue disorders
Rash
0.78%
1/128 • Number of events 1 • 12 Weeks
3.0%
4/132 • Number of events 5 • 12 Weeks
Skin and subcutaneous tissue disorders
Skin abrasion
0.00%
0/128 • 12 Weeks
0.76%
1/132 • Number of events 1 • 12 Weeks
Infections and infestations
Skin infection
0.78%
1/128 • Number of events 1 • 12 Weeks
3.0%
4/132 • Number of events 4 • 12 Weeks
Immune system disorders
Sulfonamide allergy
0.00%
0/128 • 12 Weeks
0.76%
1/132 • Number of events 1 • 12 Weeks
Reproductive system and breast disorders
Vulval itching
0.00%
0/128 • 12 Weeks
0.76%
1/132 • Number of events 1 • 12 Weeks
Reproductive system and breast disorders
Yeast infection
0.00%
0/128 • 12 Weeks
0.76%
1/132 • Number of events 1 • 12 Weeks

Additional Information

Supervisor, Clinical Operations

Tandem Diabetes Care

Phone: (858) 366-6900

Results disclosure agreements

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