Evaluation of an Karajishi TS Investigational Blood Glucose Monitoring System

Study Overview
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Brief Summary
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The purpose of this study was to determine if subjects who have diabetes can operate the Investigational Blood Glucose Monitoring System (BGMS) with no training and obtain valid glucose results.

Official Title
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User Performance of the Karajishi Contour TS Blood Glucose Monitoring System

Conditions
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Diabetes

Intervention / Treatment
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* Device: Karajishi TS Investigational Blood Glucose Monitoring System


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Males and females, 18 years of age and older People with type 1 or type 2 diabetes Able to speak, read, and understand English Willing to complete all study procedures Exclusion Criteria: Hemophilia or any other bleeding disorder Pregnancy Physical, visual, or neurological impairments that would make the person unable to perform testing with the BGM Previously participated in a BG monitor study using the Karajishi TS BGMS (or used a Bayer Contour TS meter) Working for a medical laboratory, hospital, or other clinical setting that involves training on and clinical use of blood glucose monitors Working for a competitive medical device company, or having an immediate family member who works for such a company A condition which, in the opinion of the investigator or designee, would put the person or study conduct at risk

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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Design Details

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


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Intended Users of the Monitoring System<br>Subjects with diabetes used the Karajishi TS Investigational Blood Glucose Monitoring System with no training. The criteria for the intended use population: At least 60% of subjects will be younger than age 65 At least 10% of subjects will have type 1 diabetes | Device: Karajishi TS Investigational Blood Glucose Monitoring System<br>* Subjects with diabetes performed self Blood Glucose (BG) tests with capillary fingerstick and palm blood using the Karajishi TS Investigational Blood Glucose Monitoring System with no training. All BG results were compared to reference method results obtained from subject capillary plasma. Also, study staff tested subject venous blood and BG results were compared to reference method results obtained from subject venous plasma.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Number of Self-Test Fingerstick Blood Glucose (BG) Results Within +/- 15 mg/dL (<100 mg/dL) and Within +/- 15% (>=100 mg/dL) of Laboratory Glucose Method | Subjects with diabetes self-tested fingerstick blood using an investigational Blood Glucose Monitoring System (BGMS) with no training. BGMS results were compared with subject capillary plasma BG results obtained with a Yellow Springs Instrument (YSI) Analyzer. YSI Analyzer BG results were used to calculate the number of BGMS results within +/-15 mg/dL (<100 mg/dL YSI capillary plasma) and +/-15% (>=100 mg/dL YSI capillary plasma). | 1 hour | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Number of Venous Blood Glucose (BG) Results Within +/- 15 mg/dL (<100 mg/dL) and Within +/- 15% (>=100 mg/dL) of Laboratory Glucose Method | Study staff tested subject venous blood using an investigational Blood Glucose Monitoring System (BGMS). Venous BGMS results were compared with subject venous plasma BG results obtained with a Yellow Springs Instrument (YSI) Analyzer. YSI Analyzer venous plasma BG results were used to calculate the number of BGMS results within +/-15 mg/dL (<100 mg/dL YSI venous plasma) and +/-15% (>=100 mg/dL YSI venous plasma). | 1 hour | 
| Number of Blood Glucose (BG) Results From Alternative Site Testing (AST) Palm Blood Within +/- 15 mg/dL (<100 mg/dL) and Within +/- 15% (>=100 mg/dL) of Laboratory Glucose Method | Subjects with diabetes self-tested Alternative Site (AST) palm blood using an investigational Blood Glucose Monitoring System (BGMS) with no training. BGMS AST palm results were compared with subject capillary plasma BG results obtained with a Yellow Springs Instrument (YSI) Analyzer. YSI Analyzer BG results were used to calculate the number of BGMS results within +/-15 mg/dL (<100 mg/dL YSI capillary plasma) and +/-15% (>=100 mg/dL YSI capillary plasma). | 1 hour | 
| Number of Subject Fingerstick Blood Glucose (BG) Results Within +/- 15 mg/dL (<100 mg/dL) and Within +/- 15% (>=100 mg/dL) of Laboratory Glucose Method When Obtained and Tested by Study Staff | Study staff obtained and tested subject fingerstick blood using an investigational Blood Glucose Monitoring System (BGMS). BGMS results were compared with subject capillary plasma BG results obtained with a Yellow Springs Instrument (YSI) Analyzer. YSI capillary plasma results were used to calculate the number of BGMS results within +/-15 mg/dL (<100 mg/dL YSI capillary plasma) and +/-15% (>=100 mg/dL YSI capillary plasma). | 1 hour | 
| Number of Subject Responses That Strongly Agree or Agree or Are Neutral With Questionnaire Statements | Staff obtained subject responses using short questionnaires to provide feedback on instructions for use and the basic operation of the BGMS. Subjects could respond Strongly Agree; Agree; Neutral; Disagree; or Strongly Disagree. | 1 hour |