| Eligibility |
Inclusion Criteria:
1. Subject is age 7-75 years at time of Screening
2. Subjects 14-75 years of age: A clinical diagnosis of type 1 diabetes for 2 years or
more as determined via medical record or source documentation by an individual
qualified to make a medical diagnosis
3. Subjects 7-13 years of age: A clinical diagnosis of type 1 diabetes for 1 year or more
as determined via medical record or source documentation by an individual qualified to
make a medical diagnosis Study-specific inclusion criteria
4. Subject is willing to perform = 4 finger stick blood glucose measurements daily
5. Subject is willing to perform required sensor calibrations
6. Subject is willing to wear the system continuously throughout the study
7. Subject must have a minimum daily insulin requirement (Total Daily Dose) of greater
than or equal to 8 units
8. Subject has a Glycosylated hemoglobin (HbA1c) less than 10% (as processed by Central
Lab) at time of Screening visit Note: All HbA1c blood specimens will be sent to and
tested by a NGSP certified Central Laboratory. HbA1c testing must follow National
Glycohemoglobin Standardization Program (NGSP) standards.
9. Subject has TSH in the normal range OR if the TSH is out of normal reference range the
Free T3 is below or within the lab's reference range and Free T4 is within the normal
reference range.
10. Pump therapy for greater than 6 months prior to screening (with or without CGM
experience)
11. Subject must have a companion or caregiver available at night for the duration of the
study period who resides (or will live) in in the same building (or home). A companion
or caregiver should also be available during exercise challenges in the same building,
home or location (if not at home). This requirement may be verified by subject report
at screening visit.
12. Subject willing to upload data from the study pump, must have Internet access and a
computer system that meets the requirements for uploading the study pump
13. If subject has celiac disease, it has been adequately treated as determined by the
investigator
14. Subject is willing to take one of the following insulins and can financially support
the use of either of the 2 insulin preparations throughout the course of the study
(i.e. co-payments for insulin with insurance or able to pay full amount)
- Humalog™* (insulin lispro injection)
- NovoLog™* (insulin aspart)
15. Subjects with history of cardiovascular event 1 year or more from the time of
screening must have an EKG within 6 months prior to screening or during screening. If
subject has an abnormal EKG, participation is allowed if there is clearance from a
cardiologist
16. Subjects with the 3 or more cardiovascular risk factors listed below must have an EKG
within 6 months prior to screening or during screening. If subject has an abnormal
EKG, participation is allowed if there is clearance from a cardiologist
a. Cardiovascular risk factors include:
- Age >35 years
- Type 1 diabetes of >15 years' duration
- Presence of any additional risk factor for coronary artery disease
- Presence of microvascular disease (proliferative retinopathy or nephropathy,
including microalbuminuria)
- Presence of peripheral vascular disease
- Presence of autonomic neuropathy
17. Subjects with history of cardiovascular event 1 year or more from the time of
screening must have a stress test within 6 months prior to screening or during run in
period. If subject fails stress test, participation is allowed if there is clearance
from a cardiologist
Exclusion Criteria:
1. Subject has a history of 1 or more episodes of severe hypoglycemia, which resulted in
any the following during the 6 months prior to Screening:
1. Medical assistance (i.e. Paramedics, Emergency Room (ER) or Hospitalization)
2. Coma
3. Seizures
2. Subject has been hospitalized or has visited the ER in the 6 months prior to Screening
resulting in a primary diagnosis of uncontrolled diabetes
3. Subject has had Diabetic Ketoacidosis (DKA) in the 6 months prior to Screening.
4. Subject has Hypoglycemia Unawareness, as measured by the Gold questionnaire (Gold,
MacLeod et al. 1994) at Screening
5. Subject is unable to tolerate tape adhesive in the area of sensor placement
6. Subject has any unresolved adverse skin condition in the area of sensor placement
(e.g., psoriasis, dermatitis herpetiformis, rash, Staphylococcus infection)
7. Women of child-bearing potential who have a positive pregnancy test at Screening or
plan to become pregnant during the course of the study
8. Females who are sexually active and able to conceive will be excluded if they are not
using an effective method of contraception and do not agree to continue using an
effective method of contraception for the duration of the study as determined by
investigator.
9. Subject has had any of the following cardiovascular events within 1 year of screening:
myocardial infarction, unstable angina, coronary artery bypass surgery, coronary
artery stenting, transient ischemic attack, cerebrovascular accident, angina,
congestive heart failure, ventricular rhythm disturbances or thromboembolic disease
10. Subject is being treated for hyperthyroidism at time of Screening
11. Subject has a diagnosis of adrenal insufficiency
12. Subject has taken any oral, injectable, or intravenous (IV) glucocorticoids within 8
weeks from time of Screening, or plans to take any oral, injectable, or IV
glucocorticoids during the course of the study
13. Subject is actively participating in an investigational study (drug or device) wherein
he/she has received treatment from an investigational study drug or investigational
study device in the last 2 weeks
14. Subject is currently abusing illicit drugs
15. Subject is currently abusing marijuana
16. Subject is currently abusing prescription drugs
17. Subject is currently abusing alcohol
18. Subject is using pramlintide (Symlin), DPP-4 inhibitor, liraglutide (Victoza or other
GLP-1 agonists), metformin, canagliflozin (Invokana or other SGLT2 inhibitors) at time
of Screening
19. Subject has a history of visual impairment which would not allow subject to
participate in the study and perform all study procedures safely, as determined by the
investigator
20. Subject has elective surgery planned that requires general anesthesia during the
course of the study
21. Subject has a sickle cell disease, hemoglobinopathy; or has received red blood cell
transfusion or erythropoietin within 3 months prior to time of Screening
22. Subject plans to receive red blood cell transfusion or erythropoietin over the course
of study participation
23. Subject diagnosed with current eating disorder such as anorexia or bulimia
24. Subject has been diagnosed with chronic kidney disease that results in chronic anemia
25. Subject has a hematocrit that is below the normal reference range of lab used.
26. Subject is on dialysis
27. Subject has serum creatinine of >2 mg/dL.
28. Research staff involved with the study.
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