About this trial
The study is investigating the early feasibility of a novel algorithm for a hybrid closed-loop (HCL) insulin delivery system in adult patients with Type 1 diabetes.
Participants will attend a study visit where the UBLoop system on a smartphone will manage insulin delivery via an insulin pump, using blood glucose values from a continuous glucose meter. Specialized staff and a remote monitoring system, which is integrated into the UBLoop system, will oversee the participants.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
T1D diagnosis for at least one year.
Aged between 18 and 65 years old (inclusive).
Currently using insulin for at least six months.
Currently using closed-loop insulin therapy for at least three months.
Disqualifiers
An HbA1C ≥10% .
History of diabetic ketoacidosis (DKA) in the past 12 months.
History of severe hypoglycaemic event (Level 3): defined as seizure or loss of consciousness in the past 12 months.
Current uncontrolled chronic diabetic microvascular complications (neuropathy, retinopathy, renal diabetes disease, and diabetic gastroparesis).
Trial design
Single group
Treatments tested in this trial
UBLoop System
DeviceParticipants (people living with Type-1-Diabetes) will attend a study visit where the UBLoop system will manage insulin delivery via an insulin pump, using blood glucose values from a continuous glucose meter (CGM). Specialized staff and a remote monitoring system, which is integrated into the UBLoop system, will oversee the participants. The investigational product comprises (1) the BernSHELL App, communicating with the CGM and the insulin pump, (2) the UBLoop algorithm receiving CGM data, processing the control algorithm, calculating insulin dosing, checking the safety of the calculated insulin injections, and transmitting instructions to the insulin pump via BernSHELL, (3) the UBLoop Cloud providing secure storage, analytics support, and data backup, (4) DigiCare, monitoring the safety of the study participants and the system's execution flow in real time. During the intervention, participants will use the Ypsomed myLife YpsoPump (insulin pump) and the Dexcom G6 or G7 CGM.
Treatment groups
Trial outcomes
Primary outcomes
Percentage of time with the system functioning in closed-loop mode
Failure rate of the HCL algorithm
Failure rate of the communication with CGM device
Failure rate of the communication with Insulin pump
Sponsors and contacts
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University of Bern
Lead sponsor
DCB Research AG
Collaborator
DexCom, Inc.
Collaborator
mylife Diabetes Care AG
Collaborator