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Controlled Insulin Delivery: Combining Technology With Treatment

NCT01484457 · Status: COMPLETED · Phase: EARLY_PHASE1 · Type: INTERVENTIONAL · Enrollment: 19

Last updated 2021-03-23

No results posted yet for this study

Summary

Hypothesis: Closed-loop control systems for an artificial pancreas using multi-parametric model predictive control can be developed and evaluated safely in patients with Type 1 Diabetes Mellitus (T1DM) to control blood glucose concentrations.

This study seeks to combine real-time continuous glucose sensing with automated insulin delivery in a closed-loop system that will achieve euglycemia in patients with T1DM. The end result of this line of research will be an artificial pancreas that will provide around-the-clock glucose regulation through controlled insulin delivery in response to detected patterns of change in glucose levels.

Conditions

  • Diabetes Mellitus, Type 1

Interventions

DEVICE

Closed-loop session

Subjects will arrive fasting at 7am unless needed for hypoglycemia (glucose \< 70 mg/dL) and no extra bolus insulin after 3am. An IV catheter will be inserted for blood samples and for IV administration of glucose if necessary. Blood samples will be analyzed for glucose by YSI 2300Stat every 30 minutes. Breakfast consisting of 25g of CHO will be eaten at 7:30 am and the subject will bolus for this amount of CHO. The controller is switched "on" on the down slope of the meal response, and the subject is brought to a basal steady-state by the controller. Target blood glucose is 110 ± 30-mg/dL. After approximately 3 hours a small lunch will be eaten consisting of 25g of CHO (unannounced meal challenge). The subject will be monitored until blood glucose returns to euglycemia.

Sponsors & Collaborators

  • Juvenile Diabetes Research Foundation

    collaborator OTHER

  • Schneider Children's Medical Center, Israel

    collaborator OTHER

  • Sansum Diabetes Research Institute

    lead OTHER

Principal Investigators

  • Lois Jovanovic, M.D. · Sansum Diabetes Research Institute

Study Design

Allocation
NA
Purpose
TREATMENT
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2008-07-31
Primary Completion
2010-01-31
Completion
2010-01-31

Countries

  • United States
  • Israel

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01484457 on ClinicalTrials.gov