Ultrarapid Insulin Administered by a Bihormonal Closed Loop System in Patients With Type 1 Diabetes
- Conditions
- Type 1 Diabetes
- Interventions
- Drug: Insulin Lispro Cartridge [Lyumjev]Drug: Insulin Lispro Cartridge
- Registration Number
- NCT05508061
- Lead Sponsor
- Inreda Diabetic B.V.
- Brief Summary
The main objective is to determine the efficacy of Lyumjev (insulin) in a bi-hormonal reactive closed loop system for automated glucose regulation (artificial pancreas; AP®) in patients with diabetes mellitus type 1. In addition, safety parameters, pharmacodynamics and AP-related parameters will be acquired.
This study is a multicenter, open-label, randomized, cross-over trial in 12 subjects. The subjects will be randomized to receive either Lyumjev or Humalog® for a 30-day study period and will then switch to the alternate insulin treatment after a wash-out period.
- Detailed Description
Background of the study:
Inreda Diabetic B.V. (Goor, The Netherlands) developed a bi-hormonal reactive closed loop system to automate glucose regulation (artificial pancreas; AP) in patients with diabetes mellitus type 1. In the current CE-marked AP, Humalog® (Eli Lilly) is used as rapid-acting insulin. Currently, the ultra rapid-acting insulin Lyumjev (Eli Lilly) is available but has not yet been tested in combination with the AP of Inreda. Both are insulin lispro, but additions to the insulin lispro allow the insulin to act faster with a shorter duration. The hypothesis is that the combination of Lyumjev and the reactive AP system can decrease the time that glucose values are above range which can have a positive effect on glucose regulation.
Objectives of the study:
The main objective is to determine the efficacy of Lyumjev in the Inreda AP system. Secondary objectives are to assess safety parameters, differences in pharmacodynamics and AP-related outcomes comparing Lyumjev to Humalog®.
Study design:
This study is a multicenter, open-label, randomized, cross-over trial which will be performed in a free-living environment.
Study population:
The study population will comprise 12 subjects with diabetes type 1 using the AP system. Inclusion criteria are subjects from 18 to 75 years and treated with the Inreda AP system for at least 1 month.
Intervention:
The intervention includes the administration of Lyumjev by the Inreda AP system. The subject will be randomized to receive either Lyumjev or Humalog® during the first 30 days. After a wash-out period of 8 days using the standard insulin Humalog®, the subject will switch to the alternate treatment, again for a 30-day period. During the study periods, subjects have to keep a Wi-Fi access point with them.
Primary study parameters/outcome of the study:
Main parameter to express efficacy is the time above range (\>10.0 mmol/l), which will be compared between Lyumjev and Humalog®.
Secondary study parameters/outcome of the study:
Safety will be expressed as the side effects of Lyumjev. Pharmacodynamics will be expressed in proportions of time spent in eu-/hypo-/hyperglycemia (%), median glucose value (mmol/l) and glycemic variability (% and interquartile range). These parameters will all be compared between Lyumjev and reference Humalog®.
AP-related outcomes will be expressed in daily administered dosage of insulin and glucagon (units), and the percentage of time that the closed loop algorithm is active (%).
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 12
- Diagnosed with diabetes mellitus type 1;
- Treated with the Inreda AP system for a minimum of 1 month;
- Age between 18 and 75 years;
- Willing and able to sign informed consent.
Since subjects are treated with the Inreda AP, the following inclusion criteria will be met:
- Treated with sensor augmented pump (SAP) or CSII for a minimum of 6 months;
- HbA1c < 97 mmol/mol;
- BMI < 35 kg/m^2;
- No use of acetaminophen, as this may influence the sensor glucose measurements.
- Impaired awareness of hypoglycemia (score ≥ 4) according to Gold and/or Clarke questionnaire;
- Pregnancy and/or breastfeeding;
- Use of oral antidiabetic agents;
- Insulinoma;
- Hypersensitivity reactions to Lyumjev or any of the excipients.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- CROSSOVER
- Arm && Interventions
Group Intervention Description Lyumjev (insulin lispro) Insulin Lispro Cartridge [Lyumjev] Administration of Lyumjev for a 30-day study period (dosage and frequency is patient-dependent) Humalog (insulin lispro) Insulin Lispro Cartridge Administration of standard used Humalog for a 30-day study period and 8-day wash-out period located between the two study periods (dosage and frequency is patient-dependent)
- Primary Outcome Measures
Name Time Method Percentage of time the glucose level is above 10 mmol/l for the study participants 68 days Time the glucose level is above range (\>10 mmol/l) expressed as a percentage (%)
- Secondary Outcome Measures
Name Time Method Pharmacodynamic parameters: hypoglycemia 68 days Percentage of time the glucose level is below 3.9 mmol/l (%)
Safety parameters 30 days Side effects of Lyumjev
Pharmacodynamic parameters: euglycemia 68 days Percentage of time the glucose level is between 3.9 and 10 mmol/l (%)
Pharmacodynamic parameters: median glucose value 68 days Median of the glucose values (mmol/l)
Pharmacodynamic parameters: standard deviation of glucose value 68 days Standard deviation of the glucose values (parameter required to determine the coefficient of variation)
Pharmacodynamic parameters: mean glucose value 68 days Mean of the glucose values (parameter required to determine the coefficient of variation)
Pharmacodynamic parameters: glycemic variability (CoV) 68 days Glycemic variability expressed as the coefficient of variation (CoV): standard deviation divided by the mean of the glucose values (%)
Pharmacodynamic parameters: glycemic variability (IQR) 68 days Glycemic variability expressed as the interquartile range (IQR) (mmol/l)
AP-related parameters: insulin usage 68 days Daily usage of insulin (units)
AP-related parameters: glucagon usage 68 days Daily usage of glucagon (units)
AP-related parameters: algorithm activity 68 days Percentage of time the algorithm is active (%)
Trial Locations
- Locations (3)
Slingeland Hospital
🇳🇱Doetinchem, Gelderland, Netherlands
Hospital Gelderse Vallei
🇳🇱Ede, Gelderland, Netherlands
Rijnstate Hospital
🇳🇱Arnhem, Gelderland, Netherlands