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Status unknownNCT01301053Updated Jan 31, 2013

Pilot Study of Intensive Care Unit Continuous Glucose Monitoring

An interventional study of Current UVA intensive care insulin protocol and Current UVA intensive care insulin protocol with "brakes" in Hyperglycemia and Hypoglycemia, sponsored by University of Virginia. Status unknown at 1 site in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2013-01-31.

Sponsored by University of Virginia · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Jan 2013), so the status shown — last known as Enrolling by invitation — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
20
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The investigators believe that there remains a gap in implementing insulin infusions in critically ill patients to maximize the benefit and minimize adverse events like episodes of hypoglycemia. Based on the published experience with Continuous Glucose Monitor (CGM), the investigators believe that it is safe to use in critically ill patients. Furthermore, the investigators believe that in combination with a protocol with low risk for hypoglycemia at baseline, that CGM can eliminate this risk fully.

In this study the investigators will:

  1. Study the safety and feasibility of the continuous glucose monitor use in 20 critically ill patients for 7 days (the current maximum recommendation for sensor use). Safety data will include the rate of significant bleeding (hematoma) or infection (cellulitis) from sensor use. Feasibility data will evaluate the amount of missing glucose data over the 7-day sensor life.
  2. Randomize patients treated with the current UVA intensive care insulin protocol for insulin management to the addition of "brakes" that reduce insulin administration based on continuous glucose monitoring data between hourly reference glucose data to prevent episodes of hypoglycemia (blood glucose \<70 mg/dl) and severe hypoglycemia (blood glucose \<50 mg/dl). This will serve as pilot data to power a larger study in the future.
Read the detailed description

The principle focus of this project is to collect pilot data for a larger study that will test the hypothesis that continuous glucose monitoring (CGM) is safe in critically ill patients and provides important information that can prevent hypoglycemia. This study will determine the feasibility of CGM along with the current UVA intensive care insulin protocol in critically ill hyperglycemic patients as well as to provide some information that may help estimate differences necessary to power future studies.

The following statements summarize the background for this protocol:

  1. Hyperglycemia is prevalent in critical illness, even without prior diabetes, and is associated with increased mortality.
  2. The physiology between critical illness and hyperglycemia may be secondary to inappropriate tissue oxygenation or intense inflammatory mediator release leading to elevated counter-regulatory hormones that stimulate endogenous glucose production and promote insulin resistance.
  3. Early research by Van den Berghe suggested that controlling hyperglycemia by insulin infusion improved outcomes; however, this has been contested in part by the Normoglycemia in Intensive Care Evaluation-Survival Using Glucose Algorithm Regulation (NICE-SUGAR) study.
  4. The results of the NICE-SUGAR study may reflect differences in control glucose range or in the high incidence of hypoglycemia.
  5. Hypoglycemia has been shown to be associated with increased mortality in the ICU.
  6. Glucose variability is associated with ICU mortality.
  7. Continuous glucose monitoring has been shown to be safe for up to 7 days in critically ill patients and may prevent episodes of hypoglycemia
02

Conditions studied

  • Hyperglycemia
  • Hypoglycemia

Keywords

  • hyperglycemia and increased mortality in the ICU
  • hypoglycemia and increased mortality in the ICU
  • glucose variability and increased mortality in the ICU
  • Continuous Glucose Monitoring (CGM) and hypoglycemia
  • hypoglycemia
  • reducing ICU mortality
03

In context

Hypoglycemia

640 studies on the registry are indexed under Hypoglycemia; 86 are open to participants now.

This study's planned enrollment of 20 is below the median of 29 across 471 interventional studies indexed under Hypoglycemia.

Browse Hypoglycemia studies →

Lead sponsor

University of Virginia is the lead sponsor of 653 studies on the registry; 134 are open to participants now.

Of its 60 completed or terminated interventional studies of FDA-regulated products, 41 (68%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Age 18 y.o. and above

    • Admitted to an intensive care unit
  • Patient will require an insulin infusion or is currently prescribed an insulin infusion during the ICU admission.

Exclusion criteria

Exclusion Criteria:

  • Below 18 years of age
  • Pregnancy
  • Cancer, active diagnosis
  • Moribund, Do Not Resuscitate (DNR)/Do Not Intubate (DNI), or death is predicted within 24 hours.
  • Patients with diabetic ketoacidosis or hyperosmolar hyperglycemic state will be excluded as they are managed on a different insulin protocol
  • Patients with type 1 diabetes will be excluded as they have unique insulin needs that might confound a pilot study.
  • Plan for or anticipated need for any MRI during the study period
  • Use of acetaminophen within 24 hours prior to enrollment
  • Use of a medication on the UVa formulary containing maltose, galactose, or xylose that could affect a glucose dehydrogenase pyrroloquinoline quinine (GDH-PQQ) glucose test strip (hepatitis B immune globulin (HepaGamB®), tositumomab [Bexxar®], abatacept [Orencia®], Octagam 5%, and RH immune globulin [WinRho®])
  • Lack of an appropriate abdominal site for insertion of the Dexcom sensor (e.g. extensive scarring, lack of adequate subcutaneous tissue, local infection, etc.)

Restrictions on use of other drugs or treatments.

  • According to the Dexcom SEVEN® PLUS and G4 Platinum users manuals, the Dexcom System must be removed prior to Magnetic Resonance Imaging (MRI). Therefore, if the subject requires an MRI, the sensor will be removed from the patient and the reason for removal will be noted. This will not be an Adverse Event, but will conclude the patient's participation in the study.
  • If the subject requires the use of acetaminophen-containing medications as part of their clinical care while using the system sensor the subject will be out of the study because this drug may affect the performance of the device.
  • If the subject requires use of a medication on the UVa formulary containing maltose, galactose, or xylose that could affect a glucose dehydrogenase pyrroloquinoline quinine (GDH-PQQ) glucose test strip (hepatitis B immune globulin [HepaGamB®], tositumomab [Bexxar®], abatacept [Orencia®], Octagam 5%, and RH immune globulin [WinRho®]) the subject will be out of the study because this drug may affect the performance of the unit glucometer used for reference values and calibration of the continuous glucose monitor. Study participation would be stopped at that time.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
20 participants (estimated)

Study arms

  • Other
    Current UVA intensive care insulin protocol without brakes

    Studies the safety and feasibility of the continuous glucose monitor in 10 critically ill patients for 7 days and uses the current UVA intensive care insulin for insulin management for 12 hours.

    Other: Current UVA intensive care insulin protocol

  • Active comparator
    Current UVA intensive care insulin protocol with brakes

    Studies the safety and feasibility of the continuous glucose monitor in 10 critically ill patients for 7 days. Uses the current UVA intensive care insulin protocol for insulin management for 12 hours with the addition of "brakes" that reduce insulin administration based on continuous glucose monitoring data between hourly reference glucose data.

    Other: Current UVA intensive care insulin protocol with "brakes"

Interventions

  • OtherCurrent UVA intensive care insulin protocol

    Current UVA intensive care insulin protocol used for insulin management for 12 hours

  • OtherCurrent UVA intensive care insulin protocol with "brakes"

    Current UVA intensive care insulin protocol for insulin management with the addition of "brakes" which reduces insulin administration based on continuous glucose monitoring data between hourly reference glucose data to reduce episodes of hypoglycemia (blood glucose \<70 mg/dl)and severe hypoglycemia (blood glucose\<50 mg/dl).

06

What researchers measure

Primary outcomes

  1. Safety and feasibility of the Continuous Glucose Monitor in critically ill hyperglycemic patients for up to 7 days.

    To show that Continuous Glucose Monitor sensors are safe in critically ill patients with a low (\<1%) rate of adverse events.

    Time frame: Up to 7 days

Secondary outcomes

  1. The utility of Continuous Glucose Monitor-driven "brakes" to prevent episodes of hypoglycemia using the current UVA intensive care insulin Protocol

    Continuous Glucose Monitor can prevent episodes of hypoglycemia (defined as a blood glucose less than 70mg/dl) and severe hypoglycemia (defined as a blood glucose less than 50 mg/dl)

    Time frame: 12 hours

07

Study locations

1 site
  • University of Virginia, Center for Diabetes Technology
    Charlottesville, Virginia 22908, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 31, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01301053
Lead sponsor
University of Virginia
Collaborators
U.S. Army Medical Research and Development Command, University of Texas
Responsible party
Stacey Anderson (Assistant Professor, University of Virginia) — Principal investigator
First posted
Feb 23, 2011
Start date
Feb 2011
Primary completion
Sep 2013 (estimated)
Completion
Sep 2013 (estimated)
Last update
Jan 31, 2013

Study contacts

Stacey Anderson, MD
principal investigator · University of Virginia

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Jan 2013. You cannot join it, but the record below documents what was studied.

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