About this trial
This multi-center randomized controlled trial (RCT) will compare efficacy and safety endpoints using the insulin-only configuration of the iLet Bionic Pancreas System (BP) versus a control group using their usual care insulin delivery method and continuous glucose monitoring (CGM) during a 13-week study period in individuals ≥14 years old with cystic fibrosis-related diabetes (CFRD). After 13 weeks, participants will continue in a 13-week Extension Phase in which the BP group will continue to use the BP system and the Usual Care group will initiate use of the BP system.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age ≥ 14 years old at time of signing informed consent
Able to provide informed consent (and assent for participants <18 years old)
Sweat chloride equal to or greater than 60 mmol/liter by quantitative pilocarpine iontophoresis test (QPIT) (when not taking a cystic fibrosis transmembrane conductance regulator (CFTR) modulator)
Two well-characterized mutations in the CFTR gene
Disqualifiers
None
Trial design
Parallel
Treatments tested in this trial
iLet Bionic Pancreas System (BP)
DeviceThe iLet Bionic Pancreas System (BP) consists of an integrated infusion pump, touchscreen display, Bluetooth radio, and insulin dosing algorithms, that automatically controls insulin delivery based on glucose values obtained by communicating with a CGM sensor.
Usual Care (UC)
DeviceUsual Care consists in the participant existing insulin therapy (prior to enrollment) in conjunction with a study CGM. Existing insulin therapies are defined as multiple daily injections of insulin (MDI) or use of an insulin pump.
Treatment groups
Trial outcomes
Primary outcomes
CGM-measured Time In Target Range of 70-180 mg/dL (TIR)
CGM-measured time in target range of 70-180 mg/dL (TIR)
Secondary outcomes
CGM-measured Time In Range <54 mg/dL
CGM-measured time in range \<54 mg/dL
Other outcomes
CGM-measured Mean Glucose
Average glucose value measured by CGM
CGM-measured Time In Range >180 mg/dL
CGM-measured time in range \>180 mg/dL
CGM-measured Time In Range >250 mg/dL
CGM-measured time in range \>250 mg/dL
HbA1c At 13 Weeks
HbA1c at 13 weeks
Sponsors and contacts
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Jaeb Center for Health Research
Lead sponsor
Cystic Fibrosis Foundation
Collaborator
Massachusetts General Hospital
Collaborator
Beta Bionics, Inc.
Collaborator