Whole Body 111In-exendin-4 Imaging Study in Insulinoma Patients

January 8, 2015 updated by: Damian Wild, University Hospital, Basel, Switzerland

The Physiology of Glucagon-like-peptide-1 Receptor Expression in Patients With Endogenous Hyperinsulinism - Correlation With Histopathology

The purpose of this study is to determine whether the investigators' new imaging modality (111In-exendin-4) has advantages in detecting insulinomas in comparison to conventional imaging.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Insulinomas arise from pancreatic cells and are the most frequent hormone-active tumours of the pancreas. Insulinomas produce insulin and can become life threatening if they cannot be localised and removed surgically. Complete tumour resection cures most patients, hence surgery is the treatment of choice for begin and malignant insulinomas. The potential for surgical cure necessitates accurate tumour localisation before surgery because preoperative imaging facilitates the detection of small localised, multiple and metastatic insulinomas. However, the successful localisation of insulinomas is an challenging problem since approximately 30% of insulinomas cannot be visualised radiographically.

A novel nuclear medicine scanning method using radioactive exendin-4 (111In-exendin-4) has recently been developed for imaging of insulinomas. 111In-exendin-4 accumulates specifically in insulinoma cells via the glucagon-like peptide-1 (GLP-1) receptor. The accumulation of 111In-exendin-4 can be visualised by the use of a special camera (Single Photon Emission Computed Tomography (SPECT) camera) that detects radioactivity and lights up tumours as hot spots.

The decision to perform surgery is independent of this study. If surgery is performed a small sample of the tumor will be used for identifying the sites where 111In-exendin-4 binds to the tumor.

Study Type

Observational

Enrollment (Actual)

30

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Switzerland
    • Basel-Stadt
      • Basel, Basel-Stadt, Switzerland, CH-4031
        • University Hospital Basel, Institute of Nuclear Medicine

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 90 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Probability Sample

Study Population

residents of Switzerland

Description

Inclusion Criteria:

  • Biochemically proven endogenous hyperinsulinism confirmed by hypoglycaemia with neuroglycopenic symptoms, inadequately high serum insulin and C-peptide concentrations and negative sulfonylurea screening as well as low serum beta-hydroxybutyrate concentrations
  • Able and willing to provide written informed consent

Exclusion Criteria:

  • Renal insufficiency (creatinine > 140 micromol/l)
  • Pregnancy or positive pregnancy test which will be performed in all patients without contraception and aged < 50 years
  • Allergy to exendin-4 (Byetta®)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Case-Only
  • Time Perspectives: Prospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Detection of insulinomas, cure rate
Time Frame: one year
one year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University Hospital, Basel, Switzerland

Investigators

  • Principal Investigator: Damian Wild, MD, University Hospital, Basel, Switzerland

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

November 1, 2007

Primary Completion (Actual)

December 1, 2011

Study Completion (Actual)

December 1, 2011

Study Registration Dates

First Submitted

July 2, 2009

First Submitted That Met QC Criteria

July 8, 2009

First Posted (Estimate)

July 10, 2009

Study Record Updates

Last Update Posted (Estimate)

January 9, 2015

Last Update Submitted That Met QC Criteria

January 8, 2015

Last Verified

January 1, 2015

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • OCS-01778-1

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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