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Other Surgical ProceduresContAssGluNCT01580176

Continuous GlucoseMonitor for Measurement of Blood Glucose Level

A study testing continuous GlucoseMonitor in people with Other Surgical Procedures, run by Susanne Frankenhauser at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will be the first study in which the new central venous microdialysis-based continuous glucose monitoring system (Continuous GlucoseMonitor) is used to investigate the performance of this Continuous GlucoseMonitor, as the measurements will be compared with a point of care reference (RAPIDLab® 1265 blood gas… Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Other Surgical Procedures
What is being tested?
continuous GlucoseMonitor
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
100 participants
Where
1 siteGermany
Study dates
Mar 2012to Mar 2013
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • having undergone major abdominal and predominantly pancreatic surgery due to any reason
  • expected to be in intensive care for at least 8 hours following index surgery
  • need for close monitoring of blood glucose levels postoperatively
  • having received a two-lumen central venous catheter for anaesthesia and operative purposes
  • antibiotic prophylaxis (e.g. mezlocillin 4.0g and metronidazole 500mg)
  • received routine perioperative thromboembolic prophylaxis medication (e.g. low-molecular-weight-heparin, heparin)
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  • aged at least 18 up to 80 years
  • Capable of giving informed consent (written informed consent, signed and dated)
  • successful central venous catheter in place (at least double lumen)
  • one lumen of the central venous catheter will not be used postoperatively for routine infusion therapy and routine application of medications

Who cannot join

  • known history of thrombosis, embolism; vascular obliteration
  • known bleeding disorders, e.g. thrombocytosis
  • known history of acute or chronic renal failure and patients on renal replacement therapy (dialysis, hemofiltration)
  • known history of acute or chronic heart failure
  • evidence of acute postoperative hyperhydration (pulmonary congestion)
  • known history of acquired immune deficiency syndrome
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  • patients receiving immune suppressive therapy
  • any signs for acute or chronic infection
  • contraindication for insertion of a central venous catheter
  • contraindication for perioperative thromboembolic prophylaxis medication (e.g. low-molecular-weight-heparin, heparin)
  • exceedance the flushing infusion volume (500 mL per 24 hours)
  • pregnancy and lactation
  • Participation in another parallel clinical trial

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • University Hospital Heidelberg, Department of Anaesthesiology

    Heidelberg, D-69120

Other trials in Germany

About this study

Official title: A Prospective Clinical Trial on Agreement to Evaluate the GlucoseMonitor, a Novel Device for Continuous Assessment of Blood Glucose Levels, in Comparison With the RAPIDLab® 1265 Blood Gas Analyser (ContAssGlu)

This study will be the first study in which the new central venous microdialysis-based continuous glucose monitoring system (Continuous GlucoseMonitor) is used to investigate the performance of this Continuous GlucoseMonitor, as the measurements will be compared with a point of care reference (RAPIDLab® 1265 blood gas analyser). Further important points are also much less blood samplings / blood loss for the patient and personnel costs.

Read the detailed description

The current standard for measuring blood glucose concentrations on ICU is to manually draw a blood sample from an arterial catheter and analyse the sample using a point of care blood gas analyser. This technique has several disadvantages as causes considerable blood loss and does not produce a continuous blood glucose profile and it is labour intensive (multiple samples over time are needed to follow the changes in blood glucose concentration). The monitoring system (Continuous GlucoseMonitor) based on the microdialysis technique has the advantage that not blood, but a physiological fluid such as saline is used as test medium. In brief, a physiological fluid, called the perfusate is continuously perfused through the microdialysis probe. At the membrane of the probe, glucose (as other low-molecular weight molecules) diffuses from the surrounding sample into the perfusate, now called dialysate, and is transported outside the probe for ex vivo monitoring.

Being tested
continuous GlucoseMonitor

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • continuous GlucoseMonitorDevice

    Also called blood glucose examination stand

    The blood glucose and blood lactate levels will be taken continuously by the Continuous GlucoseMonitor and will be recorded twelve times.

Study groups in NCT01580176
Study groupRoleWhat they receive
GlucoseMonitorExperimentalNot described
Receives: Device: continuous GlucoseMonitor

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Eight hours measurement after initial referencing

    Agreement at point of care, i.e. agreement between the readings from the Continuous GlucoseMonitor taken eight hours after initial referencing and the measurement results from the RAPIDLab® 1265 blood gas analyser taken at the same time

    Measured: eight hours after initial referencing

Secondary outcomes (1)
  1. one and two (short) and three to eight (mid) deterioration

    Short (one and two hour) and mid term (three to eight hour) deterioration in agreement, i.e. agreement between the readings from the Continuous GlucoseMonitor taken one and two and three, four, five, six, seven as well as eight hours after initial referencing and the measurement results from the RAPIDLab® 1265 blood gas analyser taken at the same time

    Measured: one, two, three, four, five, six, seven and eight hours

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Apr 2012 (estimated)
  2. Study startMar 2012
  3. Primary completionDec 2012
  4. Study completionMar 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
100 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01580176
Sponsor's protocol ID
ContAssGlu
Acronym
ContAssGlu
Status last verified
Dec 2013
First submitted
17 Apr 2012
Last updated
20 Dec 2013
Results posted
No
Data monitoring committee
No

Publications

  • Zimmermann JB, Lehmann M, Hofer S, Husing J, Alles C, Werner J, Stiller J, Kunnecke W, Luntz S, Motsch J, Weigand MA. Design of a prospective clinical study on the agreement between the Continuous GlucoseMonitor, a novel device for CONTinuous ASSessment of blood GLUcose levels, and the RAPIDLab(R) 1265 blood gas analyser: The CONTASSGLU study. BMC Anesthesiol. 2012 Sep 22;12:24. doi: 10.1186/1471-2253-12-24.

    PubMed 22998112

Questions about this trial

What is this clinical trial studying?

A study testing continuous GlucoseMonitor in people with Other Surgical Procedures, run by Susanne Frankenhauser at 1 site in Germany.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 10 inclusion and 13 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 20 Dec 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Eight hours measurement after initial referencing (time frame: eight hours after initial referencing). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01580176, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Dec 2013.

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