- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05597475
GLP1R-imaging in Post-RYGB Hypoglycemia
Visualizing Beta Cells in Patients With Hyperinsulinemic Hypoglycemia After Bariatric Surgery
In order to evaluate the difference in beta cell mass in patients with and without hyperinsulinemic hypoglycemia after Roux en Y gastric bypass (RYGB) investigators aim to compare quantitative PET imaging of the pancreas between these patient groups.
These highly relevant data will provide investigators with more information on the possible role of beta cell mass in the mechanisms of hyperinsulinemic hypoglycemia bariatric surgery.
Study Overview
Status
Intervention / Treatment
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
-
Arnhem, Netherlands
- Recruiting
- Rijnstate Hospital
-
Contact:
- Laura Deden, MSc
- Phone Number: +31880058888
- Email: ldeden@rijnstate.nl
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Signed informed consent
Patients:
- Persisting hyperinsulinemic hypoglycemia after a low-carbohydrate diet and/or insulin suppressive medication for one year.
Controls:
- RYGB at least 2 years ago
- Normal glucose levels before and after RYGB (fasting glucose between 4 and 6 mmol/l or HbA1c between 20 and 42 mmol/mol)
- Score ≤ 7 on Sigstad's scoring system (Table 1)
- Hypoglycemia excluded by 14-day continuous glucose monitoring
- Individual matched to HH group on age (± 5 years), sex and BMI at time of inclusion (± 2 kg/m2)
Exclusion Criteria:
- Anti-diabetic medication in the past 6 months
- Treatment with synthetic Exendin (Exenatide, Byetta®) or Dipeptidyl-Peptidase IV inhibitors in the past six months.
- Known liver failure or serum liver values over 2 times normal value at the time of standard laboratory assessment. Normal values of total bilirubin, γ-GT, ASAT and albumin are <21 μmol, <40 U/l, <30 U/l and 35-50 g/l respectively
- Pregnancy or the wish to become pregnant within 6 months
- Breast feeding
- Kidney failure, i.e. calculated creatinine clearance below 40 ml/min
- Age < 18 years
- No signed informed consent
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Other: Patients
Patients with hypoglycemia
|
Beta cell function (tests) and measure for beta cell mass (PET)
Other Names:
|
Other: Controls
Patients without post-bariatric hypoglycemia
|
Beta cell function (tests) and measure for beta cell mass (PET)
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Pancreatic uptake of 68Ga-NODAGA-exendin-4
Time Frame: baseline
|
baseline
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Beta cell function
Time Frame: baseline
|
Measured as total insulin during MTT and insulin peak during arginine test
|
baseline
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- NL51854.091.15
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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