Comparison Evaluation of Blood Glucose Meter Systems in a Clinical Setting
Clinical Evaluation of Bayer G3 / Tatsu System and BGMs From Other Companies
1 other identifier
interventional
146
1 country
1
Brief Summary
The purpose of this study was to test the performance of an investigational Bayer Blood Glucose (BG) meter and five additional Blood Glucose Monitoring Systems (BGMSs). The goal was to obtain glucose samples from subjects with diabetes across the meter operating ranges. A capillary sample was collected from each subject at 3 different times during the visit to obtain natural capillary blood samples with a range of glucose concentrations. Some blood samples were glycolyzed to lower the glucose concentration levels and glucose solution was added to other samples to raise glucose concentration levels. All meter BG results were compared with plasma results obtained with a reference laboratory glucose method (YSI Glucose Analyzer). All lancings and testing were performed by study staff.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable diabetes
Started May 2012
Shorter than P25 for not_applicable diabetes
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 1, 2012
CompletedFirst Submitted
Initial submission to the registry
May 13, 2012
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2012
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2012
CompletedFirst Posted
Study publicly available on registry
June 8, 2012
CompletedResults Posted
Study results publicly available
September 9, 2013
CompletedFebruary 29, 2016
January 1, 2016
1 month
May 13, 2012
June 30, 2013
January 29, 2016
Conditions
Outcome Measures
Primary Outcomes (1)
MAD Mean Absolute Value of the Difference Between Blood Glucose Meter (BGMS) Results and Corresponding YSI Blood Glucose (BG) Results in the Low BG Range(<70 mg/dL)
Using samples with BG \< 70 mg/dL, the Mean Absolute Value of the Differences Between BGM system readings and the YSI laboratory reference values were compared. MAD was calculated from the sum of all \|(BG meter)-(BG reference)\| assessments, divided by the number of assessments. Each evaluable sample was tested on all 6 BGMS, thus the same number of BG test results was analyzed for each BGMS intervention. Lower MAD value indicates smaller difference between meter value and the reference value. Higher MAD value indicates larger difference between meter value and the reference value.
6 hours
Secondary Outcomes (4)
MAD Mean Absolute Value of the Difference Between Blood Glucose Meter (BGMS) Results and Corresponding YSI Blood Glucose (BG) Results in the BG Range 70 to 180 mg/dL
6 hours
MAD Mean Absolute Value of the Difference Between Blood Glucose Meter (BGMS) Results and Corresponding YSI Blood Glucose (BG) Results in the BG Range >180 mg/dL
6 hours
Standard Deviations of BGMS Differences (Between BGM Meter Readings and the YSI Laboratory Reference Values Across the BG Range of All Evaluable Samples 21 mg/dL to 496 mg/dL)
6 hours
Number of Subject Responses 'Strongly Agree' 'Agree' or 'Neutral' With Questionnaire Statements
1 hour
Study Arms (1)
Intended BGM Users
EXPERIMENTALSubjects were assigned to subgroups according to their initial glucose levels. SUBGROUP 1 goal: safely decrease subject glucose levels during the visit. SUBGROUP 2 goal: safely raise subject glucose levels. Also, blood samples were modified to obtain glucose concentrations across the needed glucose ranges while maintaining subject safety. Staff tested the blood samples using the 6 Blood Glucose Monitoring Systems. Bayer G3/Tatsu System;Accu-Chek® Aviva Nano Meter/Accu-Chek® Aviva Test Strips; Freestyle Lite® Meter and Test Strips with ZipwikTM tabs;OneTouch® Ultra®2 / OneTouch® Ultra® Blue Test Strips;One Touch® VerioTM Pro/One Touch® VerioTM Test Strips;Truetrack® Meter/Truetrack® Test Strips
Interventions
Study staff performed Blood Glucose (BG) tests with capillary fingerstick blood collected from subjects with diabetes. All meter BG results were compared with plasma results obtained with a reference laboratory glucose method (YSI Glucose Analyzer).
Study staff performed Blood Glucose (BG) tests with capillary fingerstick blood collected from subjects with diabetes. All meter BG results were compared with plasma results obtained with a reference laboratory glucose method (YSI Glucose Analyzer).
Study staff performed Blood Glucose (BG) tests with capillary fingerstick blood collected from subjects with diabetes. All meter BG results were compared with plasma results obtained with a reference laboratory glucose method (YSI Glucose Analyzer).
Study staff performed Blood Glucose (BG) tested with capillary fingerstick blood collected from subjects with diabetes. All meter BG results were compared with plasma results obtained with a reference laboratory glucose method (YSI Glucose Analyzer).
Study staff performed Blood Glucose (BG) tests with capillary fingerstick blood collected from subjects with diabetes. All meter BG results were compared with plasma results obtained with a reference laboratory glucose method (YSI Glucose Analyzer).
Study staff performed Blood Glucose (BG) tests with capillary fingerstick blood collected from subjects with diabetes. All meter BG results were compared with plasma results obtained with a reference laboratory glucose method (YSI Glucose Analyzer).
Eligibility Criteria
You may qualify if:
- Diagnosis of type 1 or type 2 diabetes mellitus
- years of age or older
- Willing to follow all study procedures
You may not qualify if:
- Received an investigational drug or device within the last 30 days
- Current use or recent exposure to any prescription medication within 24 hours prior to screening that in the opinion of the investigator could have an influence on the subject's ability to participate in the study or on the performance on the test device
- Positive pregnancy test obtained at screening (test performed for females only, except if surgically sterile or three years past menopause)
- Hematocrit \<32% or \>55%
- Inadequate veins (in the opinion of the investigator or designated study staff) for venous blood withdrawal or intravenous catheter insertion
- Symptomatic coronary artery disease with a history of angina, or history of a myocardial infarction or coronary intervention (e.g. percutaneous transluminal coronary angioplasty \[PTCA\], stent placement) or coronary artery bypass graft (CABG) within the past 6 months
- Cerebrovascular accident within the past 6 months
- Diagnosis of the following diabetic autonomic neuropathies: symptomatic orthostatic hypotension, heart rate anomalies, gastroparesis
- Being treated for malignancy, except basal cell or squamous cell skin cancers
- Major surgical operation within 30 days prior to screening
- Active alcohol abuse or substance abuse (as judged by the principal investigator)
- Severe mental illness, mental incapacity, unwillingness or language barriers precluding adequate understanding or cooperation (as judged by principal investigator)
- Working for a competitive medical device company, or having an immediate family member or someone who is not a family member but is living within the household of someone who works for such a company
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Rainier Clinical Research Center Inc
Renton, Washington, 98057, United States
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Carmine Greene
- Organization
- Ascensia Diabetes Care
Study Officials
- PRINCIPAL INVESTIGATOR
Leslie J Klaff, MD
Rainier Clinical Research Center Inc
Publication Agreements
- PI is Sponsor Employee
- No
- Restriction Type
- GT60
- Restrictive Agreement
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- DIAGNOSTIC
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 13, 2012
First Posted
June 8, 2012
Study Start
May 1, 2012
Primary Completion
June 1, 2012
Study Completion
June 1, 2012
Last Updated
February 29, 2016
Results First Posted
September 9, 2013
Record last verified: 2016-01