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Completed

NCT Number: NCT02150109

Evaluation of an Karajishi Contour Investigational Blood Glucose Monitoring System (ISO/FDA Study)

The purpose of this study was to determine if untrained persons with diabetes and without diabetes could operate the Investigational Blood Glucose Monitoring System (BGMS) and obtain valid blood glucose results.

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Key information

Conditions

Diabetes Diabetes Mellitus Endocrine System Diseases Glucose Metabolism Disorders Metabolic Diseases Nutritional and Metabolic Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

AMCR Institute, Escondido, California, United States

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Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Males and females, 18 years of age and older
  • 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 Contour BGMS (or used a Bayer Contour meter)
  • Work for a medical laboratory, hospital, or other clinical setting that involves training on and clinical use of blood glucose monitors
  • Work 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

General enrollment guidelines:

  • Most subjects will be persons with type 1 or type 2 diabetes
  • At least 10% of subjects with diabetes will have type 1 diabetes
  • Approximately 10% of subjects will be persons without diabetes
  • At least 60% of subjects will be younger than age 65

Treatment and study plan

Subjects WITH/WITHOUT Diabetes Use Karajishi Contour BGMS

Device

Untrained subjects WITH and WITHOUT diabetes use Karajishi Contour BGMS (Blood Glucose Monitoring System). Subjects tested capillary fingerstick blood (and study staff tested subject fingerstick blood) using the Karajishi Contour BGMS. All BG results were compared to reference method results obtained with subject capillary plasma. Also, study staff tested subject venous blood and BG results were compared to reference method results obtained from subject venous plasma.

Subjects WITH Diabetes Use Karajishi Contour BGMS

Device

Untrained subjects WITH diabetes use the Karajishi Contour BGMS (Blood Glucose Monitoring System). Subjects tested capillary fingerstick blood (and study staff tested subject fingerstick blood) using the Karajishi Contour BGMS. All BG results were compared to reference method results obtained with subject capillary plasma. Also, study staff tested subject venous blood and BG results were compared to reference method results obtained from subject venous plasma.

Primary outcomes

  1. 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

    Time frame: 1 hour

    Untrained subjects WITH diabetes (329) self-tested 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 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).

Secondary outcomes

  1. Number of Venous Blood Glucose (BG) Results Within +/- 15 mg/dL (<100 mg/dL) and Within +/- 15% (>=100 mg/dL) of Laboratory Glucose Method

    Time frame: 1 hour

    Study staff tested venous blood of subjects WITH diabetes (329) 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).

  2. Number of 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

    Time frame: 1 hour

    Study staff obtained and tested subject (329 WITH diabetes) 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).

  3. Number of Responses From Persons With Diabetes That Either 'Strongly Agree' or 'Agree' or Are 'Neutral' With Questionnaire Statements

    Time frame: 1 hour

    Staff obtained responses from persons WITH diabetes (329) using short questionnaires to provide feedback on instructions for use and the basic operation of the BGMS. Subjects could respond 'Strongly Agree' or 'Agree' or 'Neutral' or 'Disagree' or 'Strongly Disagree.'

  4. Number of Self-Test Fingerstick Blood Glucose (BG) Results Within +/- 15% of Laboratory Glucose Method Across the Tested Glucose Range

    Time frame: 1 hour

    Untrained subjects WITH diabetes (329) and WITHOUT diabetes (43) self-tested 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 Analyzer BG results were used to calculate the number of BGMS results within +/-15% of the laboratory method across the entire tested YSI glucose range.

  5. Number of Self-Test Fingerstick Blood Glucose (BG) Results Within +/- 20% of Laboratory Glucose Method Across the Tested Glucose Range

    Time frame: 1 hour

    Untrained subjects WITH diabetes (329) and WITHOUT diabetes (43) self-tested 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 Analyzer BG results were used to calculate the number of BGMS results within +/-20% of the laboratory method across the entire tested YSI glucose range.

  6. Number of Subject Fingerstick Blood Glucose (BG) Results Within +/- 15% of Laboratory Glucose Method When Obtained and Tested by Study Staff

    Time frame: 1 hour

    Study staff obtained and tested subject (WITH and WITHOUT diabetes) 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% across the tested YSI glucose range.

  7. Number of Subject Fingerstick Blood Glucose (BG) Results Within +/- 20% of Laboratory Glucose Method When Obtained and Tested by Study Staff

    Time frame: 1 hour

    Study staff obtained and tested subject (WITH and WITHOUT diabetes) 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 +/-20% across the tested YSI glucose range.

  8. Number of Subject Responses That Either 'Strongly Agree' or 'Agree' or Are 'Neutral' With Questionnaire Statements

    Time frame: 1 hour

    Staff obtained responses from subjects WITH and WITHOUT diabetes using short questionnaires to provide feedback on instructions for use and the basic operation of the BGMS. Subjects could respond 'Strongly Agree' or 'Agree' or 'Neutral' or 'Disagree' or 'Strongly Disagree.'

Sponsors and collaborators

Lead sponsor

Ascensia Diabetes Care

Industry

Registry information

Official study title

User Performance of the Karajishi Contour Blood Glucose Monitoring System (ISO/FDA Study)

Important dates

Study start
2014
Primary completion
2014
Study completion
2014
First posted
May 29, 2014
Registry last updated
Feb 29, 2016

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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