Inpatient Closed-loop Glucose Control

NCT ID: NCT01819844

Last Updated: 2017-12-12

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

12 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-03-31

Study Completion Date

2014-12-31

Brief Summary

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The purpose of this study is to test an experimental medical device designed to automatically control blood sugar. This device was designed for use by patients with diabetes while they are in the hospital, and others who may develop high blood sugar as a result of their medical problems.

Detailed Description

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The goal of this first-in-man trial is to test the safety and efficacy of the automated, closed-loop control system in insulin sensitive subjects with type 1 diabetes, insulin sensitive subjects with type 2 diabetes (TTD \> 1u/kg/day), and subjects with type 2 diabetes and substantial insulin resistance (\<2 u/kg/day). The results of this study will help to design future studies, exploring the use of the closed-loop system for BG control in hospitalized patients, including those with diabetes or hyperglycemia of critical illness.

Conditions

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Diabetes Mellitus Hyperglycemia

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Closed-loop blood glucose control

Type 1 diabetes, Type 2 diabetes, total daily dose (TDD) of insulin that is \> 1 u/kg or \> 2 u/kg.

Group Type EXPERIMENTAL

Closed-loop blood glucose control

Intervention Type DEVICE

The InPatient Closed Loop Device is made up of the three components; the Abbott FreeStyle Navigator subcutaneous continuous glucose monitor, the Symbiq insulin-dextrose infusion system, and the control algorithm. In this feasibility trial we will study 6 insulin-sensitive subjects with type 1 diabetes and 6 subjects with type 2 diabetes and a high insulin requirement (3 with total daily dose from 1-1.9 u/kg and 3 with total daily dose \> 2 u/kg).

Interventions

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Closed-loop blood glucose control

The InPatient Closed Loop Device is made up of the three components; the Abbott FreeStyle Navigator subcutaneous continuous glucose monitor, the Symbiq insulin-dextrose infusion system, and the control algorithm. In this feasibility trial we will study 6 insulin-sensitive subjects with type 1 diabetes and 6 subjects with type 2 diabetes and a high insulin requirement (3 with total daily dose from 1-1.9 u/kg and 3 with total daily dose \> 2 u/kg).

Intervention Type DEVICE

Other Intervention Names

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InPatient Closed-Loop Blood Glucose Control Device.

Eligibility Criteria

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Inclusion Criteria

Subjects with type 1 diabetes

* Age 21 to 75 with clinical type 1 diabetes for at least one year
* Diabetes managed using an insulin infusion pump and rapid- or very-rapid-acting insulins
* Total daily dose (TDD) of insulin that is \< 1 u/kg

Subjects with type 2 diabetes

* Age 21 to 75 with clinical type 2 diabetes for at least one year
* Diabetes managed using NPH as the basal insulin, which may be supplemented with regular or rapid-acting insulin
* Total daily dose (TDD) of insulin that is \> 1 u/kg/day but \< 2 u/kg/day or \> 2 u/kg/day

Exclusion Criteria

* Pregnancy
* Renal insufficiency
* Cancer
* Abnormal EKG suggestive of coronary artery disease or increased risk of malignant arrhythmia
* Acute illness or exacerbation of chronic illness at the time of the study procedure
* Use of non-insulin, injectable anti-diabetic medications or oral anti-diabetic medications other than metformin
* History of allergy or adverse reaction to aspirin, peptic ulcers or bleeding disorders
* Known history of coronary artery disease, TIA or stroke
* History of seizures
* Transaminitis
* Stage 2 hypertension at the time of screening
Minimum Eligible Age

21 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Boston University

OTHER

Sponsor Role collaborator

Massachusetts General Hospital

OTHER

Sponsor Role lead

Responsible Party

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Steven J. Russell, MD, PhD

Assistant Professor of Medicine

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Steven J Russell, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Massachusetts General Hospital

Locations

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MGH Diabetes Research Center

Boston, Massachusetts, United States

Site Status

Countries

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United States

Related Links

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Other Identifiers

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2011P000993

Identifier Type: -

Identifier Source: org_study_id

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