Comparison Evaluation of Blood Glucose Meter Systems

Study Overview
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Brief Summary
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The purpose of this study was to evaluate the performance of one investigational Bayer Blood Glucose meter (with investigational Bayer test strips) and four Blood Glucose Monitoring Systems from other companies. All meter BG results were compared with plasma results obtained with a reference laboratory glucose method (YSI Glucose Analyzer). Performance of the five systems was evaluated across the glucose range of the BGMSs using capillary blood. All testing and lancing were performed by study staff and some blood samples were glycolyzed to lower the glucose levels.

Official Title
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Evaluation of Blood Glucose Meter Systems - NACT Study

Conditions
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Diabetes

Intervention / Treatment
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* Device: CONTOUR® NEXT EZ BGMS
* Device: FreeStyle Freedom Lite® BGMS
* Device: ACCU-CHEK® Aviva BGMS
* Device: TRUEtrack® BGMS
* Device: OneTouch® Ultra®2 BGMS


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Males and females 18 years of age or older Willing to complete all study procedures Exclusion Criteria: Blood Borne infections like hepatitis or HIV or infections such as tuberculosis Hemophilia or any other bleeding disorder Pregnancy

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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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Diagnostic
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Study Staff Test BGMSs<br>All testing and lancings were performed by the study staff; subjects did not perform any lancing or self-testing in this study. Study Staff lanced the fingers of subjects and tested the blood samples using five Blood Glucose Monitoring Systems(BGMS): FreeStyle Freedom Lite® BGMS; ACCU-CHEK® Aviva BGMS; TRUEtrack® BGMS; OneTouch® Ultra®2 BGMS; CONTOUR® NEXT EZ BGMS. | Device: CONTOUR® NEXT EZ BGMS<br>* Study staff performed Blood Glucose (BG) testing with capillary fingerstick blood collected from subjects with diabetes and without diabetes (up to 10% of subjects without diabetes were included). Performance of CONTOUR® NEXT EZ BGMS was evaluated across the glucose range of the BGMs. All meter BG results were compared with capillary plasma results obtained with a reference laboratory glucose method (YSI Glucose Analyzer).<br>Device: FreeStyle Freedom Lite® BGMS<br>* Study staff performed Blood Glucose (BG) testing with capillary fingerstick blood collected from subjects with diabetes and without diabetes (up to 10% of subjects without diabetes were included). Performance of FreeStyle Freedom Lite® BGMS was evaluated across the glucose range of the BGMs. All meter BG results were compared with capillary plasma results obtained with a reference laboratory glucose method (YSI Glucose Analyzer).<br>Device: ACCU-CHEK® Aviva BGMS<br>* Study staff performed Blood Glucose (BG) testing with capillary fingerstick blood collected from subjects with diabetes and without diabetes (up to 10% of subjects without diabetes were included). Performance of ACCU-CHEK® Aviva BGMS was evaluated across the glucose range of the BGMs. All meter BG results were compared with capillary plasma results obtained with a reference laboratory glucose method (YSI Glucose Analyzer).<br>Device: TRUEtrack® BGMS<br>* Study staff performed Blood Glucose (BG) testing with capillary fingerstick blood collected from subjects with diabetes and without diabetes (up to 10% of subjects without diabetes were included). Performance of TRUEtrack® BGMS was evaluated across the glucose range of the BGMs. All meter BG results were compared with capillary plasma results obtained with a reference laboratory glucose method (YSI Glucose Analyzer).<br>Device: OneTouch® Ultra®2 BGMS<br>* Study staff performed Blood Glucose (BG) testing with capillary fingerstick blood collected from subjects with diabetes and without diabetes (up to 10% of subjects without diabetes were included). Performance of OneTouch® Ultra®2 BGMS was evaluated across the glucose range of the BGMs. All meter BG results were compared with capillary plasma results obtained with a reference laboratory glucose method (YSI Glucose Analyzer).<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| MARD (Mean Absolute Relative Difference Between BGMS Results and Reference Method Results) Across the Overall Tested Glucose Range | Using the overall Blood Glucose(BG) range (24 to 386mg/dL), the Mean Absolute Relative Differences (MARD) between the BGM System readings and the YSI laboratory reference values were compared. MARD is calculated from the sum of all |(BG meter)-(BG reference)| / (BG Reference) assessments, divided by the number of assessments, then multiplied by 100(%). Each evaluable sample was tested on all five BGMS, thus the same number of BG test results was analyzed for each BGMS intervention. Lower MARD value indicates smaller difference between meter value and the reference value . Higher MARD value indicates larger difference between meter value and the reference value. | 10 hours | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| MARD (Mean Absolute Relative Difference Between BGMS Results and Reference Method Results) Across the Low Glucose Range (<70mg/dL) | Using fresh and glycolyzed samples with Blood Glucose(BG) below 70 mg/dL, the Mean Absolute Relative Differences (MARD) between the BGM System readings and the YSI laboratory reference values were compared. MARD is calculated from the sum of all |(BG meter)-(BG reference)| / (BG Reference) assessments, divided by the number of assessments, then multiplied by 100(%). Each evaluable sample was tested on all five BGMS, thus the same number of BG test results was analyzed for each BGMS intervention. Lower MARD value indicates smaller difference between meter value and the reference value . Higher MARD value indicates larger difference between meter value and the reference value. | 10 hours |