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User Study of an Investigational Blood Glucose Monitoring System

Tatsu/Tradewind System User Performance Evaluation

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01447121
Enrollment
118
Registered
2011-10-06
Start date
2011-09-30
Completion date
2011-09-30
Last updated
2016-02-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetes

Brief summary

This clinical trial is designed to assess an investigational blood glucose monitoring system with fingerstick blood in the hands of untrained intended users.

Interventions

DEVICETatsu/Tradewind Investigational BG Monitoring System

Tradewind is a Bayer investigational meter that used an investigational sensor.

Sponsors

Ascensia Diabetes Care
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Type 1 or type 2 diabetes * 18 years of age and older * Able to speak, read, and understand English * Willing to complete all study procedures

Exclusion criteria

* Previously participated in a study using this investigational system * Working for a medical laboratory, hospital, or other clinical setting that involves training on and clinical use of blood glucose monitors * Pregnancy * Hemophilia or any other bleeding disorder * 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 * A condition which, in the opinion of the investigator, would put the person or study conduct at risk (reason for exclusion will be clearly documented by investigator or designee).

Design outcomes

Primary

MeasureTime frameDescription
Number of Self-Test Fingerstick Blood Glucose (BG) Results Within +/- 15mg/dL (<75 mg/dL) or Within +/- 20% (>=75 mg/dL) of Laboratory Glucose Method1 hourUntrained subjects with diabetes tested self-test fingerstick blood using an investigational Blood Glucose Monitoring System (BGMS), which included an investigational meter and sensor. BGM results were compared with capillary plasm BG results obtained with a reference lab glucose method - Yellow Springs Instrument (YSI) Analyzer. BG meter results were used to calculate the number of BG results within +/- 15 mg/dL (for reference BG results \<75mg/dL) or +/- 20% (for reference BG results \>=75mg/dL) of the reference method results (YSI capillary plasma).

Secondary

MeasureTime frameDescription
Number of Study Staff Results Within +/- 15mg/dL (<75 mg/dL) or Within +/- 20% (>=75 mg/dL) of Laboratory Glucose Method When Testing Subject Blood Glucose (BG)1 hourStudy staff tested subject fingerstick blood using an investigational Blood Glucose Monitoring System (BGMS), which included an investigational meter and sensor. BGM results were compared with capillary plasma BG results obtained with a reference lab glucose method - Yellow Springs Instrument (YSI) Analyzer. BG meter results were used to calculate the number of BG results within +/- 15mg/dL (for reference BG results \<75mg/dL) or +/- 20% (for reference BG results \>=75mg/dL) of the reference method results.

Countries

United States

Participant flow

Participants by arm

ArmCount
Intended Users of the System
Study results from 2 subjects were excluded from all data analysis, because study staff inadvertently performed study tasks that could be considered 'training' them. (According to protocol, training was not allowed.)
116
Total116

Baseline characteristics

CharacteristicIntended Users of the System
Age, Customized52.3 years
Region of Enrollment
United States
116 participants
Sex: Female, Male
Female
61 Participants
Sex: Female, Male
Male
55 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
5 / 118
serious
Total, serious adverse events
0 / 118

Outcome results

Primary

Number of Self-Test Fingerstick Blood Glucose (BG) Results Within +/- 15mg/dL (<75 mg/dL) or Within +/- 20% (>=75 mg/dL) of Laboratory Glucose Method

Untrained subjects with diabetes tested self-test fingerstick blood using an investigational Blood Glucose Monitoring System (BGMS), which included an investigational meter and sensor. BGM results were compared with capillary plasm BG results obtained with a reference lab glucose method - Yellow Springs Instrument (YSI) Analyzer. BG meter results were used to calculate the number of BG results within +/- 15 mg/dL (for reference BG results \<75mg/dL) or +/- 20% (for reference BG results \>=75mg/dL) of the reference method results (YSI capillary plasma).

Time frame: 1 hour

Population: 115(115x1)test results are possible. 118 subjects tested one of 3 test strip lots on the BGM system. Study results from 2 subjects were excluded from all data analyses as already described. One subject test exceeded time interval (defined in protocol) between meter test and reference method.

ArmMeasureValue (NUMBER)
Intended Users of the SystemNumber of Self-Test Fingerstick Blood Glucose (BG) Results Within +/- 15mg/dL (<75 mg/dL) or Within +/- 20% (>=75 mg/dL) of Laboratory Glucose Method115 BG test results
Secondary

Number of Study Staff Results Within +/- 15mg/dL (<75 mg/dL) or Within +/- 20% (>=75 mg/dL) of Laboratory Glucose Method When Testing Subject Blood Glucose (BG)

Study staff tested subject fingerstick blood using an investigational Blood Glucose Monitoring System (BGMS), which included an investigational meter and sensor. BGM results were compared with capillary plasma BG results obtained with a reference lab glucose method - Yellow Springs Instrument (YSI) Analyzer. BG meter results were used to calculate the number of BG results within +/- 15mg/dL (for reference BG results \<75mg/dL) or +/- 20% (for reference BG results \>=75mg/dL) of the reference method results.

Time frame: 1 hour

Population: 115 (115x1) test results are possible. Staff tested blood from 118 subjects (one of 3 test strip lots). All study results from 2 subjects were excluded from data analyses as already described. Also, one test exceeded time interval (defined in protocol) between meter test and reference method.

ArmMeasureValue (NUMBER)
Intended Users of the SystemNumber of Study Staff Results Within +/- 15mg/dL (<75 mg/dL) or Within +/- 20% (>=75 mg/dL) of Laboratory Glucose Method When Testing Subject Blood Glucose (BG)115 BG test results

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026