Dexcom G7 CGM in critically ill adults after major abdominal surgery or solid organ transplant
Official title: Determining the Reliability and Accuracy of the Dexcom G7 Continuous Glucose Monitoring System in the ICU
Run by Institute for Clinical and Experimental Medicine · NCT07611721 · Data updated 2026-11-12
This study tests how accurately the Dexcom G7 continuous glucose monitor tracks glucose in ICU patients after major abdominal surgery or solid organ transplantation who need tight insulin control.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 62 (estimated) |
| Sponsor | Institute for Clinical and Experimental Medicine Government |
| Locations | 1 site (Prague) |
| Status | Recruiting |
| Started | January 14, 2026 |
| Main results expected | September 2026 |
| Study ends | April 2027 |
| Registry record updated | May 28, 2026 |
| Trial ID | NCT07611721 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults 18 years or older in the ICU who require blood glucose monitoring for insulin therapy after major abdominal surgery or solid organ transplantation.
✕Probably not a fit
Patients who do not require tight insulin therapy or who cannot wear the sensor due to medical or physical considerations may not benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
In this interventional study, critically ill adults in the ICU wearing two Dexcom G7 sensors will help determine how well the device measures glucose during insulin therapy after major abdominal surgery or organ transplantation. One sensor is blinded to avoid monitoring, while the other provides real-time data to guide insulin dosing. Patients will wear sensors for up to 10 days, with four glucose checks per day and daily SOFA scoring to correlate sensor readings with patient status. Calibration occurs only on the unblinded sensor using standard blood glucose meter readings. The study design includes ongoing integration with routine ICU care without altering standard workflows.
Why it matters
Potential benefit: If successful, Dexcom G7 could offer reliable, continuous glucose data to support insulin management in critically ill patients.
How similar studies have gone: Preliminary work with continuous glucose monitors in ICU settings has shown promise for accuracy, but this specific ICU post-surgical/organ transplant population is relatively novel.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Age 18 years or over * Intensive care unit admission * Requiring blood glucose monitoring for insulin therapy Exclusion Criteria: * High-dose ascorbic acid or acetaminophen \> 4g/day * Physical or mental health condition precluding continuous wear of the continuous glucose monitor, as judged by the physician
Where it's running
-
Institute of Clinical and Experimental Medice
Prague, Czechia Recruiting
Study contacts
- Study coordinator: Marek Protus, MD
- Email: marek.protus@ikem.cz
- Phone: +420602278062
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.