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Does real-time glucose tracking before surgery cut complications? a massive trial puts it to the test.

NCT ID NCT06331923

Disease control Sponsor: Beijing Tsinghua Chang Gung Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jul 29, 2026 · Last updated Jul 30, 2026 · Updated 1 time

Summary

This trial tests whether using a continuous glucose monitor (CGM) before and after major surgery can reduce complications in adults with diabetes or impaired glucose tolerance. Participants wear the device for at least 6 hours before surgery and up to 7 days after, while a comparison group receives standard glucose checks. The goal is to see if CGM leads to fewer and less severe complications within 30 days after surgery.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
continuous glucose monitoring (CGM) device
What this could lead to
If effective, CGM could become a standard tool to reduce post-surgical complications in people with diabetes.
What could go wrong
This is a large pragmatic trial, but the benefit of CGM over conventional monitoring in surgical settings is not yet proven, and device calibration or patient adherence may affect results.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

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

9,877 people

The number who actually took part.

Started

Apr 2024

Finished

May 2026

Lead sponsor

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

18 years and older

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Patients aged above 18 years; 2. Patients with diabetes mellitus or impaired glucose tolerance; 3. Expected major thoracic and abdominal surgery (except cardiac surgery; including endoscopic surgery and robotic surgery), open orthopedic surgery, neurosurgery; 4. Volunteered for this study and written informed consent. Exclusion Criteria: 1. The patient refused; 2. The time between wearing CGM sensor and surgical skin incision cannot meet 6 hours or more; 3. Expected monitoring time less than 72 hours in CGM group; 4. Patients had comorbidities that affected the evaluation of endpoints; 5. The attending physician thought that the patient had inappropriate indications for enrollment; 6. Participants were involved in other studies that interfered with the evaluation of the results of this study.

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Conditions

The condition(s) this trial relates to.

diabetes mellitus prediabetes syndrome

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Comprehensive complication index

Contacts and locations

Locations

  • Beijing Tsinghua Changgung Hospital

    Beijing, Beijing Municipality, 102218, China

  • Department of Anesthesiology, Emergency General Hospital

    Beijing, China

  • Department of Anesthesiology, Peking University International Hospital

    Beijing, China

  • Department of Anesthesiology, Peking University Shougang Hospital

    Beijing, China

  • Department of Anesthesiology, Yueyang Central Hospital

    Hunan, China

  • Department of Endocrinology and Metabolism, Fuzhou First General Hospital Affiliated with Fujian Medical University

    Fuzhou, China

  • Department of Endocrinology and Metabolism, The Second Hospital of Shanxi Medical University

    Shanxi, China

  • Department of Endocrinology, Jilin Chemical Hospital

    Jilin City, China

More trials for these conditions

Other studies related to the condition(s) this trial covers.