Trial Outcomes & Findings for Threshold Suspend in Pediatrics at Home (NCT NCT02120794)

NCT ID: NCT02120794

Last Updated: 2018-09-11

Results Overview

The overall mean change in A1C from baseline to 1 year will be estimated and compared by a non-inferiority test with an A1C margin of 0.4% and a significance level of 0.025 (one-sided). Among the 136 subjects who completed the study, 132 had both baseline and end of study A1c. Therefore, primary endpoint was based on 132 subjects.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

194 participants

Primary outcome timeframe

Baseline and 1 year after screening

Results posted on

2018-09-11

Participant Flow

Participant milestones

Participant milestones
Measure
530G Insulin Pump
Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year. 530G Insulin pump: Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year.
Overall Study
STARTED
194
Overall Study
COMPLETED
136
Overall Study
NOT COMPLETED
58

Reasons for withdrawal

Reasons for withdrawal
Measure
530G Insulin Pump
Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year. 530G Insulin pump: Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year.
Overall Study
Withdrawal by Subject
43
Overall Study
Adverse Event
10
Overall Study
Physician Decision
4
Overall Study
Due to insurance coverage
1

Baseline Characteristics

Threshold Suspend in Pediatrics at Home

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
530G Insulin Pump
n=194 Participants
Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year. 530G Insulin pump: Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year.
Age, Continuous
11.7 years
STANDARD_DEVIATION 2.54 • n=5 Participants
Sex: Female, Male
Female
70 Participants
n=5 Participants
Sex: Female, Male
Male
124 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
29 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
164 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants
Region of Enrollment
United States
194 particpants
n=5 Participants

PRIMARY outcome

Timeframe: Baseline and 1 year after screening

The overall mean change in A1C from baseline to 1 year will be estimated and compared by a non-inferiority test with an A1C margin of 0.4% and a significance level of 0.025 (one-sided). Among the 136 subjects who completed the study, 132 had both baseline and end of study A1c. Therefore, primary endpoint was based on 132 subjects.

Outcome measures

Outcome measures
Measure
530G Insulin Pump
n=132 Participants
Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year. 530G Insulin pump: Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year.
Overall Mean Change in A1C
0.26 percentage
Interval 0.125 to 0.395

SECONDARY outcome

Timeframe: Baseline and 1 year after screening

Mean change in A1C from baseline to 1 year, stratified by different A1c subgroups: A1c below 7%. Among the 132 subjects with both baseline and end of study A1c, 3 had A1c below 7%

Outcome measures

Outcome measures
Measure
530G Insulin Pump
n=3 Participants
Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year. 530G Insulin pump: Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year.
Mean Change in A1C From Baseline to 1 Year, Stratified by Different A1c Subgroups
0.37 percentage
Standard Deviation 0.47

SECONDARY outcome

Timeframe: Baseline and 1 year after screening

Mean change in A1C from baseline to 1 year, stratified by different A1c subgroups: A1c 7% to 9%. Among the 132 subjects with both baseline and end of study A1c, 97 had A1c 7% to 9%

Outcome measures

Outcome measures
Measure
530G Insulin Pump
n=97 Participants
Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year. 530G Insulin pump: Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year.
Mean Change in A1C From Baseline to 1 Year, Stratified by Different A1c Subgroups
0.34 percentage
Standard Deviation 0.73

SECONDARY outcome

Timeframe: Baseline and 1 year after screening

Mean change in A1C from baseline to 1 year, stratified by different A1c subgroups: A1c \> 9%. Among the 132 subjects with both baseline and end of study A1c, 32 had A1c \> 9%

Outcome measures

Outcome measures
Measure
530G Insulin Pump
n=32 Participants
Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year. 530G Insulin pump: Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year.
Mean Change in A1C From Baseline to 1 Year, Stratified by Different A1c Subgroups
-0.02 percentage
Standard Deviation 1.27

Adverse Events

530G Insulin Pump

Serious events: 4 serious events
Other events: 121 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
530G Insulin Pump
n=194 participants at risk
Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year. 530G Insulin pump: Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year.
Metabolism and nutrition disorders
Severe Hyperglycemia
0.52%
1/194 • Number of events 3 • 1 year
Metabolism and nutrition disorders
Dabetic Ketoacidosis
1.0%
2/194 • Number of events 2 • 1 year
Infections and infestations
Gastroenteritis
0.52%
1/194 • Number of events 2 • 1 year
Injury, poisoning and procedural complications
Second Degree Burns to lower distal extremeties
0.52%
1/194 • Number of events 1 • 1 year

Other adverse events

Other adverse events
Measure
530G Insulin Pump
n=194 participants at risk
Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year. 530G Insulin pump: Subjects will use 530G insulin pump with Threshold Suspend (TS) feature for one year.
Gastrointestinal disorders
Abdominal pain upper
0.52%
1/194 • Number of events 1 • 1 year
Skin and subcutaneous tissue disorders
Acne
0.52%
1/194 • Number of events 1 • 1 year
Infections and infestations
Acute sinusitis
0.52%
1/194 • Number of events 1 • 1 year
Immune system disorders
Allergy to arthropod sting
0.52%
1/194 • Number of events 1 • 1 year
Immune system disorders
Anaphylactic reaction
0.52%
1/194 • Number of events 1 • 1 year
Psychiatric disorders
Anxiety
1.5%
3/194 • Number of events 3 • 1 year
Musculoskeletal and connective tissue disorders
Arthralgia
0.52%
1/194 • Number of events 1 • 1 year
Psychiatric disorders
Attention deficit/hyperactivity disorder
0.52%
1/194 • Number of events 1 • 1 year
Musculoskeletal and connective tissue disorders
Back pain
0.52%
1/194 • Number of events 1 • 1 year
Psychiatric disorders
Body dysmorphic disorder
0.52%
1/194 • Number of events 1 • 1 year
Infections and infestations
Bronchitis
1.0%
2/194 • Number of events 2 • 1 year
Infections and infestations
Cellulitis
0.52%
1/194 • Number of events 1 • 1 year
General disorders
Chest pain
0.52%
1/194 • Number of events 1 • 1 year
Injury, poisoning and procedural complications
Clavicle fracture
0.52%
1/194 • Number of events 1 • 1 year
Injury, poisoning and procedural complications
Concussion
1.0%
2/194 • Number of events 2 • 1 year
Infections and infestations
Conjunctivitis
1.0%
2/194 • Number of events 2 • 1 year
Gastrointestinal disorders
Constipation
0.52%
1/194 • Number of events 1 • 1 year
Nervous system disorders
Convulsion
0.52%
1/194 • Number of events 1 • 1 year
Respiratory, thoracic and mediastinal disorders
Cough
3.1%
6/194 • Number of events 9 • 1 year
Metabolism and nutrition disorders
Dehydration
0.52%
1/194 • Number of events 1 • 1 year
Psychiatric disorders
Depression
0.52%
1/194 • Number of events 1 • 1 year
Skin and subcutaneous tissue disorders
Dermatitis
0.52%
1/194 • Number of events 2 • 1 year
Skin and subcutaneous tissue disorders
Dermatitis contact
2.6%
5/194 • Number of events 5 • 1 year
Metabolism and nutrition disorders
Diabetic ketoacidosis
0.52%
1/194 • Number of events 1 • 1 year
Gastrointestinal disorders
Dysphagia
0.52%
1/194 • Number of events 1 • 1 year
Infections and infestations
Ear infection
1.0%
2/194 • Number of events 2 • 1 year
Ear and labyrinth disorders
Ear pain
0.52%
1/194 • Number of events 1 • 1 year
Infections and infestations
Encephalitis viral
0.52%
1/194 • Number of events 1 • 1 year
Nervous system disorders
Epilepsy
0.52%
1/194 • Number of events 1 • 1 year
Skin and subcutaneous tissue disorders
Erythema
1.0%
2/194 • Number of events 2 • 1 year
Injury, poisoning and procedural complications
Eye injury
0.52%
1/194 • Number of events 1 • 1 year
General disorders
Fatigue
0.52%
1/194 • Number of events 1 • 1 year
Psychiatric disorders
Fear of injection
0.52%
1/194 • Number of events 1 • 1 year
Gastrointestinal disorders
Gastritis
0.52%
1/194 • Number of events 1 • 1 year
Infections and infestations
Gastroenteritis
3.1%
6/194 • Number of events 6 • 1 year
Infections and infestations
Gastroenteritis viral
2.1%
4/194 • Number of events 4 • 1 year
Infections and infestations
Gastrointestinal viral infection
1.0%
2/194 • Number of events 2 • 1 year
Investigations
Giardia test positive
0.52%
1/194 • Number of events 1 • 1 year
Vascular disorders
Haemorrhage
0.52%
1/194 • Number of events 2 • 1 year
Injury, poisoning and procedural complications
Hand fracture
1.5%
3/194 • Number of events 3 • 1 year
Nervous system disorders
Headache
3.1%
6/194 • Number of events 11 • 1 year
Metabolism and nutrition disorders
Hyperglycaemia
14.4%
28/194 • Number of events 44 • 1 year
Immune system disorders
Hypersensitivity
0.52%
1/194 • Number of events 1 • 1 year
Metabolism and nutrition disorders
Hypoglycaemia
2.1%
4/194 • Number of events 4 • 1 year
Infections and infestations
Influenza
2.6%
5/194 • Number of events 6 • 1 year
Musculoskeletal and connective tissue disorders
Joint swelling
0.52%
1/194 • Number of events 1 • 1 year
Renal and urinary disorders
Ketonuria
1.0%
2/194 • Number of events 2 • 1 year
Injury, poisoning and procedural complications
Lumbar vertebral fracture
0.52%
1/194 • Number of events 1 • 1 year
General disorders
Medical device discomfort
0.52%
1/194 • Number of events 1 • 1 year
General disorders
Medical device pain
4.1%
8/194 • Number of events 9 • 1 year
General disorders
Medical device site reaction
8.8%
17/194 • Number of events 23 • 1 year
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Melanocytic naevus
0.52%
1/194 • Number of events 1 • 1 year
Nervous system disorders
Migraine
1.0%
2/194 • Number of events 2 • 1 year
Infections and infestations
Mononucleosis syndrome
0.52%
1/194 • Number of events 1 • 1 year
Respiratory, thoracic and mediastinal disorders
Nasal congestion
2.1%
4/194 • Number of events 4 • 1 year
Infections and infestations
Nasopharyngitis
0.52%
1/194 • Number of events 1 • 1 year
Gastrointestinal disorders
Nausea
1.5%
3/194 • Number of events 3 • 1 year
Infections and infestations
Onychomycosis
0.52%
1/194 • Number of events 1 • 1 year
Respiratory, thoracic and mediastinal disorders
Oropharyngeal pain
1.0%
2/194 • Number of events 3 • 1 year
Infections and infestations
Otitis media
1.5%
3/194 • Number of events 4 • 1 year
Reproductive system and breast disorders
Ovarian cyst
0.52%
1/194 • Number of events 1 • 1 year
General disorders
Pain
1.0%
2/194 • Number of events 2 • 1 year
Musculoskeletal and connective tissue disorders
Pain in extremity
0.52%
1/194 • Number of events 1 • 1 year
Infections and infestations
Pharyngitis
1.0%
2/194 • Number of events 3 • 1 year
Infections and infestations
Pharyngitis streptococcal
4.1%
8/194 • Number of events 11 • 1 year
Infections and infestations
Pneumonia
1.0%
2/194 • Number of events 2 • 1 year
General disorders
Pyrexia
1.0%
2/194 • Number of events 2 • 1 year
Injury, poisoning and procedural complications
Radius fracture
0.52%
1/194 • Number of events 1 • 1 year
Skin and subcutaneous tissue disorders
Rash
5.2%
10/194 • Number of events 10 • 1 year
Infections and infestations
Respiratory tract infection viral
0.52%
1/194 • Number of events 1 • 1 year
Immune system disorders
Seasonal allergy
0.52%
1/194 • Number of events 1 • 1 year
Respiratory, thoracic and mediastinal disorders
Sinus congestion
0.52%
1/194 • Number of events 1 • 1 year
Infections and infestations
Sinusitis
2.6%
5/194 • Number of events 6 • 1 year
Infections and infestations
Skin infection
0.52%
1/194 • Number of events 1 • 1 year
Skin and subcutaneous tissue disorders
Skin irritation
10.3%
20/194 • Number of events 28 • 1 year
Nervous system disorders
Syncope
1.5%
3/194 • Number of events 3 • 1 year
Musculoskeletal and connective tissue disorders
Synovial cyst
0.52%
1/194 • Number of events 1 • 1 year
Infections and infestations
Tinea cruris
0.52%
1/194 • Number of events 1 • 1 year
Infections and infestations
Tonsillitis
0.52%
1/194 • Number of events 1 • 1 year
Respiratory, thoracic and mediastinal disorders
Tonsillolith
0.52%
1/194 • Number of events 1 • 1 year
Gastrointestinal disorders
Tooth impacted
0.52%
1/194 • Number of events 1 • 1 year
Gastrointestinal disorders
Toothache
0.52%
1/194 • Number of events 2 • 1 year
Investigations
Tuberculin test positive
0.52%
1/194 • Number of events 1 • 1 year
Injury, poisoning and procedural complications
Upper limb fracture
0.52%
1/194 • Number of events 1 • 1 year
Respiratory, thoracic and mediastinal disorders
Upper respiratory tract congestion
0.52%
1/194 • Number of events 1 • 1 year
Infections and infestations
Upper respiratory tract infection
9.3%
18/194 • Number of events 22 • 1 year
Infections and infestations
Urinary tract infection
0.52%
1/194 • Number of events 1 • 1 year
General disorders
Vessel puncture site pain
0.52%
1/194 • Number of events 1 • 1 year
Infections and infestations
Viral infection
2.1%
4/194 • Number of events 4 • 1 year
Infections and infestations
Viral upper respiratory tract infection
0.52%
1/194 • Number of events 1 • 1 year
Gastrointestinal disorders
Vomiting
2.1%
4/194 • Number of events 4 • 1 year
Respiratory, thoracic and mediastinal disorders
Wheezing
1.0%
2/194 • Number of events 3 • 1 year
Injury, poisoning and procedural complications
Wrist fracture
0.52%
1/194 • Number of events 1 • 1 year

Additional Information

Suiying Huang, Statistician

Medtronic Minimed

Phone: 8184763319

Results disclosure agreements

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

Restriction type: GT60