The purpose of this study is to evaluate the safety and effectiveness of the Hybrid Closed Loop system (HCL) in adult and pediatric patients with type 1 diabetes in the home setting. A diverse population of patients with type 1 diabetes will be studied. The study population will have a large range for duration of diabetes and glycemic control, as measured by glycosylated hemoglobin (A1C). They will be enrolled in the study regardless of their prior diabetes regimen, including using Multiple Daily Injections (MDI), Continuous Subcutaneous Insulin Infusion (CSII) or Sensor-Augmented Pump therapy (SAP)
This is a 6 month, multi-center, randomized, parallel, adaptive study in type 1 diabetes with a 6 month continuation period. The study will have three periods, per Cohort: 1. Run-in Period: The run-in period can be up to 60 days during which time a blinded CGM sensor will be worn for two weeks. 2. Study Period: There will be a 6 month randomized study period with two arms: The HCL system and Control. The primary and secondary endpoints will be evaluated during this period only. 3. Continuation Period: There will be a 6 month continuation period during which time all subjects will use the HCL system with Auto Mode. Only the safety endpoint will be evaluated during this period. Up to 1500 subjects will be enrolled in order to have 1000 subjects complete the study. Up to 70 investigational Centers in the US, Europe, Canada, Australia and New Zealand will be enrolled.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
959
Medtronic 670G and 770G Hybrid Closed Loop Systems
Subject will use current diabetes therapy: CSII (Continuous Subcutaneous Insulin Infusion), MDI (Multiple Daily Injections) or SAP (Sensor Augmented Pump).
Scripps Health System
La Jolla, California, United States
Stanford University
Palo Alto, California, United States
Center of Excellence in Diabetes & Endocrinology
Sacramento, California, United States
Sansum Diabetes Research Institute
Santa Barbara, California, United States
SoCal Diabetes
Torrance, California, United States
CSII Cohort: Baseline A1C > 8%: Change in A1C (∆A1C)
CSII Cohort: Change in A1C from baseline to the end of the six-month treatment period, defined as A1C measured at the six-month treatment visit minus A1C measured at the randomization visit, for subjects with baseline A1C \> 8%
Time frame: Baseline and end of 6-month study period
CSII Cohort: Baseline A1C ≤ 8%: Time in Hypoglycemic Range
CSII Cohort: Time with sensor glucose (SG) below 70 mg/dL (3.9mmol/L) during the six-month study period, for subjects with baseline A1c ≤ 8%
Time frame: 6 months study period
MDI Cohort: Baseline A1C > 8%: Change of A1C (∆A1C)
MDI Cohort: Change in A1C from baseline to the end of the six-month treatment period, defined as A1C measured at the six-month treatment visit minus A1C measured at the randomization visit, for subjects with baseline A1c \> 8%
Time frame: Baseline and end of 6-month study period
MDI Cohort: Baseline A1C ≤ 8%: Time in Hypoglycemic Range
MDI Cohort: Time with sensor glucose (SG) below 70 mg/dL (3.9mmol/L) during the six-month study period, for subjects with baseline A1c ≤ 8%
Time frame: 6 months study period
SAP Cohort: Baseline A1C > 8%: Change of A1C (∆A1C)
SAP Cohort: Change in A1C from baseline to the end of the six-month treatment period, defined as A1C measured at the six-month treatment visit minus A1C measured at the randomization visit, for subjects with baseline A1c \> 8%
Time frame: Baseline and end of 6-month study period
SAP Cohort: Baseline A1C ≤ 8%: Time in Hypoglycemic Range
SAP Cohort: Time with sensor glucose (SG) below 70 mg/dL (3.9mmol/L) during the six-month study period, for subjects with baseline A1c ≤ 8%
Time frame: 6 months study period
CSII Cohort: Baseline A1C > 8%: Time in Hypoglycemic Range
CSII Cohort: Time with sensor glucose (SG) below 70 mg/dL (3.9mmol/L) during the six-month study period, for subjects with baseline A1c \> 8%
Time frame: 6 months study period
CSII Cohort: Baseline A1C ≤ 8%: Change in A1C (∆A1C)
CSII Cohort: Change in A1C from baseline to the end of the six-month treatment period, defined as A1C measured at the six-month treatment visit minus A1C measured at the randomization visit, for subjects with baseline A1c ≤ 8%
Time frame: Baseline and end of 6-month study period
CSII Cohort: Time in Hypoglycemic Range During Night for All Subjects
CSII Cohort: Time with SG below 70 mg/dL (3.9mmol/L) during Night for all subjects
Time frame: 6 months study period
CSII Cohort: Time in Target Range 70mg/dL (3.9mmol/L) - 180 mg/dL (10.0mmol/L) During Night for All Subjects
CSII Cohort: Time in target range measures the time with SG in target range 70mg/dL (3.9mmol/L) - 180 mg/dL (10.0mmol/L) during Night for all subjects
Time frame: 6 months study period
CSII Cohort: Time in Target Range 70mg/dL (3.9mmol/L) - 180 mg/dL (10.0mmol/L) During Day and Night for All Subjects
CSII Cohort: Time in target range measures the time with SG in target range 70mg/dL (3.9mmol/L) - 180 mg/dL (10.0mmol/L) during Day and Night for all subjects
Time frame: 6 months study period
CSII Cohort: Time in Hypoglycemic Range During Day and Night for All Subjects
CSII Cohort: Time with SG below 70 mg/dL (3.9mmol/L) during Day and Night for all subjects
Time frame: 6 months study period
CSII Cohort: Change in A1C for All Subjects
CSII Cohort: Change in A1C from baseline to the end of the six-month treatment period, defined as A1C measured at the six-month treatment visit minus A1C measured at the randomization visit for all subjects
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Diablo Clinical Research
Walnut Creek, California, United States
Barbara Davis Center
Aurora, Colorado, United States
University of South Florida Diabetes Center
Tampa, Florida, United States
Atlanta Diabetes Associates
Atlanta, Georgia, United States
Endocrine Research Solutions
Roswell, Georgia, United States
...and 26 more locations
Time frame: Baseline and end of 6-month study period
MDI Cohort: Baseline A1C > 8%: Time in Hypoglycemic Range
MDI Cohort: Time with sensor glucose (SG) below 70 mg/dL (3.9mmol/L) during the six-month study period, for subjects with baseline A1c \> 8%
Time frame: 6 months study period
MDI Cohort: Baseline A1C ≤ 8%: Change in A1C (∆A1C)
MDI Cohort: Change in A1C from baseline to the end of the six-month treatment period, defined as A1C measured at the six-month treatment visit minus A1C measured at the randomization visit, for subjects with baseline A1c ≤ 8%
Time frame: Baseline and end of 6-month study period
MDI Cohort: Time in Hypoglycemic Range During Night for All Subjects
MDI Cohort: Time with SG below 70 mg/dL (3.9mmol/L) during Night for all subjects
Time frame: 6 months study period
MDI Cohort: Time in Target Range 70mg/dL (3.9mmol/L) - 180 mg/dL (10.0mmol/L) During Night for All Subjects
MDI Cohort: Time in target range measures the time with SG in target range 70mg/dL (3.9mmol/L) - 180 mg/dL (10.0mmol/L) during Night for all subjects
Time frame: 6 months study period
MDI Cohort: Time in Target Range 70mg/dL (3.9mmol/L) - 180 mg/dL (10.0mmol/L) During Day and Night for All Subjects
MDI Cohort: Time in target range measures the time with SG in target range 70mg/dL (3.9mmol/L) - 180 mg/dL (10.0mmol/L) during Day and Night for all subjects
Time frame: 6 months study period
MDI Cohort: Time in Hypoglycemic Range During Day and Night for All Subjects
MDI Cohort: Time with SG below 70 mg/dL (3.9mmol/L) during Day and Night for all subjects
Time frame: 6 months study period
MDI Cohort: Change in A1C for All Subjects
MDI Cohort: Change in A1C from baseline to the end of the six-month treatment period, defined as A1C measured at the six-month treatment visit minus A1C measured at the randomization visit for all subjects
Time frame: Baseline and end of 6-month study period
SAP Cohort: Baseline A1C > 8%: Time in Hypoglycemic Range
SAP Cohort: Time with sensor glucose (SG) below 70 mg/dL (3.9mmol/L) during the six-month study period, for subjects with baseline A1c \> 8%
Time frame: 6 months study period
SAP Cohort: Baseline A1C ≤ 8%: Change in A1C (∆A1C)
SAP Cohort: Change in A1C from baseline to the end of the six-month treatment period, defined as A1C measured at the six-month treatment visit minus A1C measured at the randomization visit, for subjects with baseline A1c ≤ 8%
Time frame: Baseline and end of 6-month study period
SAP Cohort: Time in Hypoglycemic Range During Night for All Subjects
SAP Cohort: Time with SG below 70 mg/dL (3.9mmol/L) during Night for all subjects
Time frame: 6 months study period
SAP Cohort: Time in Target Range 70mg/dL (3.9mmol/L) - 180 mg/dL (10.0mmol/L) During Night for All Subjects
SAP Cohort: Time in target range measures the time with SG in target range 70mg/dL (3.9mmol/L) - 180 mg/dL (10.0mmol/L) during Night for all subjects
Time frame: 6 months study period
SAP Cohort: Time in Target Range 70mg/dL (3.9mmol/L) - 180 mg/dL (10.0mmol/L) During Day and Night for All Subjects
SAP Cohort: Time in target range measures the time with SG in target range 70mg/dL (3.9mmol/L) - 180 mg/dL (10.0mmol/L) during Day and Night for all subjects
Time frame: 6 months study period
SAP Cohort: Time in Hypoglycemic Range During Day and Night for All Subjects
SAP Cohort: Time with SG below 70 mg/dL (3.9mmol/L) during Day and Night for all subjects
Time frame: 6 months study period
SAP Cohort: Change in A1C for All Subjects
SAP Cohort: Change in A1C from baseline to the end of the six-month treatment period, defined as A1C measured at the six-month treatment visit minus A1C measured at the randomization visit for all subjects
Time frame: Baseline and end of 6-month study period