Optimization of Glycemic Control in the Hospital and Critical Care Setting

Study Overview
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Brief Summary
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Continuous Glucose Monitoring collected using the iPro device, to complete a large dataset consisting of routine electronic health records, biological, neurophysiological, physiological, and glycemic data. This dataset will eventually contribute to the further development and optimization of a comprehensive simulation, training, and clinical decision support system designed to contribute the optimization of glycemic control in the hospital and critical care setting.

Detailed Description
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Although recent advances in technology such as electronic medical records and continuous glucose monitoring provide enhanced monitoring capabilities, optimal glycemic control in the hospital and critical care setting is still extremely difficult to obtain. These technologies provide little to no identification of trends in data, and clinical decision support. The goal of this research study was to collect data to support further development and optimization of a comprehensive clinical decision support system with simulation, training, and clinical decision support functionality. The system will also be designed to provide real-time performance measurement and feedback to ensure glycemic control is maintained at an optimal level. The continuous glucose monitor (CGM) device utilized in this investigation was the iPro Recorder® (Medtronic Diabetes, Northridge, CA), a FDA approved monitoring device which reports glucose values every five minutes. Subjects with a history of hyperglycemia or current hyperglycemia were identified either in the intensive care unit or prior to surgery. Upon enrollment of eligible patients in the study, CGM device was placed on subject's abdomen or thigh. The times logged by the CGM device were synchronized to achieve valid data pairing according to time. Subjects were visited as needed or at least twice in a 24-hour period to ensure that the devices were still in place and comfortable for the patient. After 72 hours of data collection, the CGM device was removed and the area of attachment cleaned. Research staff collected medical history and standard of care glucose point of care obtained during subject's participation into the study. Other data from the patient's standard of care monitor, such as oxygen saturation levels, blood pressure, respiratory and heart rate, were collected as part of the patient's safety assessment assurance. Data analysis will be completed offsite by investigators at Aptima, Inc. and their wholly owned subsidiary, Analytic Diabetic Systems, LLC. All patient data collected in this investigation was appropriately de-identified.

Official Title
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Development of a Comprehensive Clinical Decision Support System and Educational Tool to Support Optimization of Glycemic Control in the Hospital and Critical Care Setting

Conditions
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Hyperglycemia, Diabetes Mellitus

Intervention / Treatment
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* Device: iPro Continuous Glucose Monitoring


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Male or Female, ≥ 18 years of age. Subject able to provide written informed consent to participate in the study. Female subject with a negative urine or serum pregnancy test, or not of childbearing potential, defined as surgically sterile due to bilateral tubal ligation, bilateral oophorectomy or hysterectomy; or are postmenopausal for at least 1 year. Have a blood sugar value of >140 mg/dL or an glycosylated hemoglobin A1C (HbA1C) values >6.5% upon admission to the surgical Intensive Care Unit (ICU), medical ICU, or cardiovascular ICU, and have or not have been diagnosed with type 1 or type 2 diabetes. Exclusion Criteria: Subjects younger than 18 years old. Subjects who are prisoners. Subjects with known hypersensitivity to latex or tape. Females who are pregnant or breastfeeding. Subjects unable to provided informed consent. Subjects unable to participate in the study for any reason in the opinion of the Principal Investigator. Subjects enrolled in other research studies.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Diabetes Mellitus / Hyperglycemia<br>iPro Continuous Glucose Monitoring on subjects with blood sugar value >140 mg/dL upon admission to the intensive care unit or who have been diagnosed with type 1 or type 2 diabetes or have glycosylated hemoglobin A1C (HbA1C) values > 6.5% prior to admission. | Device: iPro Continuous Glucose Monitoring<br>* iPro device is a continuous glucose monitoring (CGM) FDA approved device. This CGM device consists of a small recorder which reports glucose values every five minutes. This recorder is connected directly to a glucose sensor. The glucose-oxidase based sensor measures extracellular fluid in the subcutaneous tissue. The tiny and flexible sensors are typically inserted just beneath the skin, usually in the abdominal area, but can also be placed in the buttock, or anterior or lateral thigh.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Evaluate performance of glucose predictive models, clinical decision support algorithms, and performance measures in simulated real-time setting. | Glucose measurements collected (mg/dL) in the iPro device will be further analyzed to create an algorithm to predict glucose changes (hyperglycemia or hypoglycemia). | Glucose levels collected since placement of the iPro device (Hour 0) until removal of the ipro device (Hour 72) | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Ensure data collected has considerable quantity of hypoglycemia, normoglycemia, and hyperglycemia for algorithm model development and optimization. | Glucose measurements collected (mg/dL) in the iPro device will be reviewed to confirmed that sufficient hyperglycemia or hypoglycemia episodes, as well as normal glucose values, were recorded. Available data will be used to create the algorithm to predict glucose changes. | Glucose levels collected since placement of the iPro device (Hour 0) until removal of the ipro device (Hour 72) | 
| Further development of GlyCU system functionality (simulation, training, and clinical decision support capabilities) and identification of necessary steps for integration with the OSUWMC electronic health record database. | Correlate glucose measurements collected (mg/dL) in the iPro device with the glucose values collected as at standard of care for each study subject at the Ohio State University Wexner Medical Center (OSUWMC). | Glucose levels collected since placement of the iPro device (Hour 0) until removal of the ipro device (Hour 72) |