Which glucose monitor works best for insulin users?
NCT ID NCT07308925
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether a real-time continuous glucose monitor (CGM) helps people with type 2 diabetes on insulin keep their blood sugar in a healthy range better than an intermittent CGM. About 108 adults with poorly controlled diabetes will use one of the two monitors for a period. The goal is to see which device leads to more time with blood sugar between 70 and 180 mg/dL.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 108 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jan 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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35 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Minimum age of 35 years. * HbA1c \>7.0% * Treatment with one or more insulin injections. * Stable medication regimen for the 3 months prior to study entry. * Insulin treatment for ≥3 months with a stable dose prior to entry, with fasting blood glucose between 70 and 130 mg/dL. * Availability of an NFC-enabled smartphone. Exclusion Criteria: * Pregnancy or planning to become pregnant during the study period. * History of bariatric surgery within the year prior to study entry or plans to undergo bariatric surgery during the study. * Having a condition that would likely require an MRI during the study period. * Use of medications containing high doses of ascorbic acid (\>2000 mg/day), as it may falsely increase sensor readings. * Concomitant illness or condition that may compromise patient safety, including, but not limited to, serious mental illness, a diagnosed or suspected eating disorder, or any long-term medical/unmanageable disorder. * GFR less than 30 ml/min. * Psychiatric condition that interferes with study-related tasks. * Known (or suspected) significant allergy to medical-grade adhesives.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Hospital Universitario San Ignacio
Bogotá, 111121, Colombia
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