NCT02423798

Brief Summary

The trial will investigate the accuracy and performance of a new sensor for continuous glucose monitoring (CGM), the (new generation) Enlite, CE-marked in 2013, in conjunction with the new Medtronic 640G system components. To evaluate the accuracy and performance of the new generation Enlite sensor. This is a postmarket, interventional, open-label, non-randomized, single center clinical research trial. The trial will adopt a prospective single-sample design using the Yellow Spring Instruments (YSI) plasma glucose reference sampling procedure in the clinic and self-monitoring of blood glucose (SMBG) plasma glucose reference sampling procedure at home.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
24

participants targeted

Target at below P25 for not_applicable diabetes

Timeline
Completed

Started Apr 2015

Shorter than P25 for not_applicable diabetes

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 23, 2015

Completed
9 days until next milestone

Study Start

First participant enrolled

April 1, 2015

Completed
21 days until next milestone

First Posted

Study publicly available on registry

April 22, 2015

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2015

Completed
2.1 years until next milestone

Results Posted

Study results publicly available

September 25, 2017

Completed
Last Updated

January 17, 2018

Status Verified

January 1, 2018

Enrollment Period

5 months

First QC Date

March 23, 2015

Results QC Date

August 28, 2017

Last Update Submit

January 12, 2018

Conditions

Keywords

DiabetesGlucose sensorSensor accuracy and performanceCGM

Outcome Measures

Primary Outcomes (3)

  • Sensor Accuracy

    Sensor values were compared to YSI plasma glucose values, which is considered as the gold standard, during the frequent sample testing day (day 3). MARD = Mean of ((Absolute difference of YSI reference and Sensor glucose values / YSI reference glucose values) \* 100).

    4 months

  • Consensus Error Grid Analysis of Paired Sensor and Reference Plasma Glucose Values

    All analysis performed using the Consensus Error Grid (or Parkes error grid) comparing the paired sensor and YSI reference glucose values. Zone A is defined in the Parkes error grid as the zone of "clinical accurate measurements with no effect on clinical action." Zone B as "altered clinical action with little or no effect on clinical outcome.". Ideal situation is 100% in Zone A + B.

    4 months

  • Sensor Survival

    sensor survival in hours

    4 months

Study Arms (1)

Open-label, single-sample design

OTHER

The trial has an open label design with a glucose sensor intervention. Only 1 sensor system is used in the trial (no comparator). As all subjects will receive identical devices and undergo the same experimental procedures, no randomization will be performed. Furthermore, neither subjects nor clinical staff will be blinded to the sensor readings, as knowing the sensor glucose readings will not affect the accuracy endpoint.

Device: Glucose sensor (Enlite)

Interventions

This is a postmarket, interventional, open-label, non-randomized, single center clinical research trial. The trial will adopt a prospective single-sample design using the Yellow Spring Instruments (YSI) plasma glucose reference sampling procedure in the clinic and selfmonitoring of blood glucose (SMBG) plasma glucose reference sampling procedure at home. The trial will consist of 6 visits to the investigational site: a visit for informed consent procedures (Visit 0), a screening visit (Visit 1), 3 study visits (Visit 2-4) and a final examination (Visit 5).

Open-label, single-sample design

Eligibility Criteria

Age18 Years - 74 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Subject has signed the informed consent form prior to screening
  • Age 18-74 years (both inclusive)
  • Subject has been diagnosed with T1DM
  • Subject is current insulin pump user for at least 3 months
  • HbA1c 9.5%
  • With the exception of T1DM, the subject is considered generally healthy upon completion of medical history, physical examination, vital signs, ECG and biochemical investigations as judged by the Investigator

You may not qualify if:

  • Female of childbearing potential who is pregnant, breast-feeding or intend to become pregnant or are not using adequate contraceptive methods (adequate contraceptive measures include sterilization, hormonal intrauterine devices, oral contraceptives, sexual abstinence, vasectomized partner)
  • Subject has any condition that, in the opinion of the Investigator or qualified Investigational Centre staff, may preclude him/her from participating in the study and completing study related procedures.
  • Subject has impaired vision or hearing problems that could compromise the handling of the device as determined by Investigator or qualified Investigational Centre staff
  • Subject is unable to tolerate tape adhesive in the area of sensor placement
  • Subject has any unresolved adverse skin condition in the area of sensor placement (e.g. psoriasis, rash, Staphylococcus infection)
  • Subject has travel plans which would make it difficult for the subject to attend on-site study visits as scheduled
  • Subject is actively participating in an investigational study (drug or device) wherein he/she has received treatment from an investigational study drug or investigational study device in the last 30 days
  • Subject known to be positive for Hepatitis B surface antigen (HBsAg) or Hepatitis C antibodies (or diagnosed with active hepatitis according to local practice).
  • Positive result to the screening test for HIV-1 antibodies, HIV-2 antibodies or HIV-1 antigen according to locally used diagnostic testing
  • Significant history of alcoholism or drug/chemical abuse as per investigator's judgment, current regular alcohol consumption of more than 1 unit per day for women and more than 2 units per day for men \[1 unit of alcohol equals 1 beer (330 mL), 1 glass of wine (120 mL), or 1 glass of spirits (40 mL)\], or a positive result in the urine drug/alcohol screen at the screening visit

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Diabetes Mellitus

Condition Hierarchy (Ancestors)

Glucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesEndocrine System Diseases

Results Point of Contact

Title
Odile O'Sullivan, Clinical Trial Manager
Organization
Medtronic Minimed

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
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 23, 2015

First Posted

April 22, 2015

Study Start

April 1, 2015

Primary Completion

September 1, 2015

Study Completion

September 1, 2015

Last Updated

January 17, 2018

Results First Posted

September 25, 2017

Record last verified: 2018-01

Data Sharing

IPD Sharing
Will not share