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RecruitingNCT07506356SAGUSEUpdated Apr 1, 2026

Investigation of Gastric Emptying by Gastric Ultrasonography in Diabetic Patients Treated With GLP-1 Receptors

An observational study in Diabete Type 2, Regurgitation and Pulmonary Aspiration During Anaesthetic Induction, sponsored by University Hospital, Geneva. Recruiting at 1 site in Switzerland. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-04-01.

Sponsored by University Hospital, Geneva · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
38
Ages
18 Years and older
Sex
All
01

Study summary

Treatment with semaglutide slows down gastric emptying , food remains in the stomach for a longer period of time. This slowing has important implications for anesthesia management. At present, we do not know the optimal duration for discontinuing this medication before surgery and anesthesia to ensure an empty stomach.

This is an observational research project, conducted exclusively at the Geneva University Hospitals (HUG). To answer the research question, participation of 38 individuals will be required. The duration of participation for each person is 7 days.

To recruit the necessary number of participants, approximately 1.5 years will be needed.

This project is being carried out in accordance with Swiss legal requirements and recognized international guidelines. The competent ethics committee has reviewed and approved this project.

The project will last 7 day during which the participants will need to come 3 times at the hospital to make gastric ultrasounds. On these days the participants will be asked to have a breakfast between 7 and 8 am including a minimum of bread and/or cereals and/or proteins. After that the participants will be asked to fast for 6 hours for solide food and 2 hours for liquids. If the participants smokes, they must for 12h before the exam.

At 2Pm an anesthesiologist will welcome the participant to make the exam at the hospital to evaluate the gastric volume after what the participants will be able to get a small collation and go back home.

02

Conditions studied

  • Diabete Type 2
  • Regurgitation
  • Pulmonary Aspiration During Anaesthetic Induction

Keywords

  • GLP-1 agonists
  • GLP-1 analog
  • Diabetes
  • Gastric ultrasound
  • Anesthesia
  • GUS
03

In context

Diabetes Mellitus, Type 2

9,359 studies on the registry are indexed under Diabetes Mellitus, Type 2; 1,318 are open to participants now.

This study's planned enrollment of 38 is below the median of 300 across 1,588 observational studies indexed under Diabetes Mellitus, Type 2.

Browse Diabetes Mellitus, Type 2 studies →

Lead sponsor

University Hospital, Geneva is the lead sponsor of 372 studies on the registry; 68 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Diabetic patients treated by GLP-1 analog

Inclusion criteria

  • Female/ Male of 18 years old or more
  • With Type 2 Diabetes
  • Treated with GLP 1 analog for more than 3 months
  • Signed consent
  • ASA between I and IV

Exclusion criteria

Exclusion Criteria:

  • Insuline treatment
  • Gastro intestinal motility disorders
  • Past gastric surgery
  • Hiatal hernia
  • Recent trauma
  • Inability to be lay down for the exam
  • Inability to follow the instructions for the exam (language, dementia)
  • BMI > 40
  • Inability to stop smoking 12h before the measures
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
38 participants (estimated)
Target follow-up
7 Days
Patient registry
Yes

Groups and cohorts

  • Diabetic patients under GLP-1 receptors agonists
06

What researchers measure

Primary outcomes

  1. A safe gastric volume for anesthesia in diabetic patients treated with GLP-1 analog after a 6 hours fasting period 7 day after the last injection.

    Our primary objective is to show that after a fasting period of 6 hours, seven days after the last injection of GLP-1, gastric volume of diabetic patients is safe for anaesthesia. Our hypothesis is that seven days after the last injection of GLP-1, and after a 6h fasting period, the mean gastric volume of treated patients will be lower than 1.5 ml/kg, corresponding to the most accepted volume threshold of an at risk (full) stomach

    Time frame: 1 week

07

Study locations

1 of 1 sites recruiting
  • Hôpitaux Universitaires de Genève
    Geneva, Canton of Geneva 1211, Switzerland
    • Rey-Millet Quentin RMQuentin Dr · Contact · quentin.rey-millet@hug.ch · +4179.55.380.54
    • Rey-Millet RMQuentin Quentin, Dr · Principal investigator
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 1, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07506356
Lead sponsor
University Hospital, Geneva
Responsible party
Dr Rey-Millet Quentin (Dr, Principal Investigator, University Hospital, Geneva) — Principal investigator
First posted
Apr 1, 2026
Start date
Apr 1, 2026 (estimated)
Primary completion
Dec 31, 2026 (estimated)
Completion
Dec 31, 2026 (estimated)
Last update
Apr 1, 2026

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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