The purpose of this study was to determine whether the Bionic Pancreas with ZP4207 (dasiglucagon\*) was feasible to improve glycemic control in adults with type 1 diabetes mellitus. \*dasiglucagon is the proposed International Nonproprietary Name (pINN) for ZP4207
This was a single-center, open-label, 2-part, randomized cross-over trial. The trial was to enrol up to 20 adult patients with type 1 diabetes mellitus and assess the safety and efficacy of the Bionic Pancreas (BP) using either the iLet or iPhone platform when used with the glucagon analogue ZP4207 (dasiglucagon) versus Lilly glucagon. In Part 1, patients participated in two 1-day treatment arms in random order (iPhone-based BP using ZP4207 (dasiglucagon) and iPhone-based BP using Lilly glucagon) according to a pre-generated randomization scheme. In Part 2, it was planned to enrol additional patients to participate in two 1-day treatment arms in random order (iLet using ZP4207 (dasiglucagon) and iLet using Lilly glucagon) according to a pre-generated randomization scheme. However, due to unavailability of the iLet, the sponsor decided to stop the trial upon completion of Part 1. Part 2 of the trial using the iLet was consequently not conducted. One day the BP will use glucagon analogue ZP4207 (dasiglucagon) and the other day the BP will use Lilly glucagon. Subjects will also receive insulin lispro through the BP on both days. The trial will be conducted at single center, the Massachusetts General Hospital Diabetes Center in Boston, MA.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
13
Used to lower blood glucose. Commercially available by prescription and is indicated for patients with type 1 diabetes mellitus (T1DM), but not for use in a bionic pancreas. Individualized dose based on metabolic needs and frequent monitoring of blood glucose.
A glucagon analog not yet approved by the FDA. Subcutaneous administration in one BP arm.
A hormone normally made by the pancreas to raise blood glucose. Used to treat low blood sugar. Commercially available by prescription and is indicated for patients with T1DM in severe hypoglycemia, but not for use in a BP. Subcutaneous administration in one BP arm.
MGH Diabetes Center
Boston, Massachusetts, United States
Safety and Tolerability as Measured by Adverse Events, Local Tolerability of Infusion Site Reactions, and Clinical Laboratory Parameters
Safety and tolerability of ZP4207 in the BP using either the iPhone or the iLet platform, as measured by adverse events (AEs), local tolerability of infusion site reactions, and clinical laboratory parameters. See adverse events section for results on AEs by system organ class and preferred term. Clinical laboratory parameters in terms of overall 'investigations' AEs and abnormal hematology parameters that did not resolve by the follow-up visit are presented below. LLN = lower limit of the normal range. Investigations and vital signs AEs by preferred term are presented in the AE section. Participants with infusion site pain and nausea measured by visual analog scales (VAS) are presented below; mean values are presented under secondary outcomes. For the VAS, individuals marked on a 10-cm line corresponding to the amount of pain or nausea being experienced, with low scores (cm) indicating no feelings of pain or nausea and high scores (cm) indicating high feelings of pain or nausea.
Time frame: Up to 50 days
Pain Measured on a Visual Analog Scale (VAS)
The VAS scale was used to measure pain at the end of the visit (16 hours) for patients in both treatment groups. The VAS was a psychometric response scale used to measure subjective characteristics of pain. Patients marked a location on a 0 to 10-cm line that corresponded to the amount of pain being experienced, with low scores (cm) indicating no feelings of pain and high scores (cm) indicating high feelings of pain. Actual values are shown. The maximum value in the Lilly glucagon group was recorded at hour 3.
Time frame: 16 hours
Nausea Measured on a Visual Analog Scale (VAS)
The VAS scale was used to measure nausea at the end of the visit (16 hours) for patients in both treatment groups. The VAS was a psychometric response scale used to measure subjective characteristics of nausea. Patients marked a location on a 0 to 10-cm line that corresponded to the amount of nausea being experienced, with low scores (cm) indicating no feelings of nausea and high scores (cm) indicating high feelings of nausea. Actual values are shown. The maximum values in both groups were recorded at hour 6, the start of the exercise period.
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
An experimental device.
An experimental device.
Time frame: 16 hours
Glycemic Regulation
Measure glycemic regulation, including hypoglycemia exposure (percent of time spent with continuous glucose monitor \[CGM\] glucose\<60mg/dL)
Time frame: 16 hours
Average Percent Glucagon Dose Amounts Calculated by the Bionic Pancreas Control Algorithm That Are Successfully Delivered by the Pump.
Secondary endpoint of bionic pancreas function, presented by treatment group. The analysis of bionic pancreas function endpoints was on an intention-to-treat basis.
Time frame: 16 hours
Average Percent Insulin Dose Amounts Calculated by the Bionic Pancreas Control Algorithm That Are Successfully Delivered by the Pump.
Secondary endpoint of bionic pancreas function, presented by treatment group. The analysis of bionic pancreas function endpoints was on an intention-to-treat basis.
Time frame: 16 hours
Average Percentage of Time During Which the Bionic Pancreas is Functioning Nominally in All Respects Based on Real-time Continuous Glucose Monitoring (CGM) Data
Secondary endpoint of bionic pancreas function, presented by treatment group. The analysis of bionic pancreas function endpoints was on an intention-to-treat basis.
Time frame: 16 hours
Average Percentage of Time During Which the Bionic Pancreas is Functioning Nominally With or Without a New CGM Glucose Reading Captured
Secondary endpoint of bionic pancreas function, presented by treatment group. The analysis of bionic pancreas function endpoints was on an intention-to-treat basis.
Time frame: 16 hours
CGM Reliability Index, Calculated as Percentage of Possible Values Actually Recorded by CGM
Secondary endpoint of bionic pancreas function, presented by treatment group. The analysis of bionic pancreas function endpoints was on an intention-to-treat basis.
Time frame: 16 hours
CGM Mean Absolute Relative Difference Versus Time-stamped Blood Glucose (BG) Values From Meter Download
Secondary endpoint of bionic pancreas function, presented by treatment group. The analysis of bionic pancreas function endpoints was on an intention-to-treat basis.
Time frame: 16 hours
Number of Patients With Technical Faults Associated With the BP Including Cause and Resolution: Calibration Issues
Technical faults in terms of calibration issues were listed by patient.
Time frame: 16 hours
Number of Patients With Technical Faults Associated With the BP Including Cause and Resolution: Connectivity Issues
Technical faults related to connectivity issues were listed
Time frame: 16 hours
Diabetes Treatment Satisfaction Questionnaire - Status
This questionnaire was not assessed as per protocol amendment 7.
Time frame: Up to 3 months
Diabetes Treatment Satisfaction Questionnaire - Change
This questionnaire was not assessed as per protocol amendment 7.
Time frame: Up to 3 months
T1-Diabetes Distress Scale
This questionnaire was not assessed as per protocol amendment 7.
Time frame: Up to 3 months
Problem Areas in Diabetes Survey
This questionnaire was not assessed as per protocol amendment 7.
Time frame: Up to 3 months
Hypoglycemia Fear Survey
This questionnaire was not assessed as per protocol amendment 7.
Time frame: Up to 3 months
Impact of Daily Diabetes Demands
This questionnaire was not assessed as per protocol amendment 7.
Time frame: Up to 3 months
Bionic Pancreas User Opinion Survey
This questionnaire was not assessed as per protocol amendment 7.
Time frame: Up to 3 months