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Clinical Evaluation of 68Ga-NOTA-MAL-Cys39-exendin-4 Positron Emission Tomography in the Detection of Insulinoma

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ClinicalTrials.gov Identifier: NCT04185350
Recruitment Status : Recruiting
First Posted : December 4, 2019
Last Update Posted : December 4, 2019
Sponsor:
Information provided by (Responsible Party):
FengWang, Nanjing First Hospital, Nanjing Medical University

Study Description
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Brief Summary:
Glucagon-like peptide-1 receptor (GLP-1R) is a kind of G protein coupled receptor which regulate the insulin secretion and serves as potential target in the diagnosis of functional pancreas neuroendocrine tumor. The aim of this study was the clinical evaluation of a potential GLP-1R targeted tracer 68Ga-NOTA-MAL-Cys39-exendin-4 for the detection of insulinoma.

Condition or disease Intervention/treatment Phase
Insulinoma Drug: 68Ga-NOTA-MAL-Cys39-exendin-4 Early Phase 1

Detailed Description:
Since GLP-1R is expressed in human β-cells and highly overexpressed in insulinomas，multiple GLP-1R-targeted radiopharmaceuticals were devoted to insulinoma localization imaging.68Ga-NOTA-MAL-Cys39-exendin-4 is an optimal probe targeting GLP-1R. A single dose of 111-185 Mega-Becquerel (MBq) 68Ga-NOTA-MAL-Cys39-exendin-4 will be injected intravenously. Visual and semiquantitative method will be used to assess the PET/CT images.The investigators will determine the use of 68Ga-NOTA-MAL-Cys39-exendin-4 PET/CT in the detection of insulinomas, and to compare its diagnostic value with conventional imaging.
Study Design
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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 60 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: Clinical Evaluation of 68Ga-NOTA-MAL-Cys39-exendin-4 Positron Emission Tomography in the Detection of Insulinoma
Actual Study Start Date : May 5, 2019
Estimated Primary Completion Date : April 5, 2020
Estimated Study Completion Date : May 5, 2020

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Arms and Interventions
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Arm Intervention/treatment
Experimental: 68Ga-NOTA-MAL-Cys39-exendin-4 PET/CT
The patients were injected with 111-185 MBq of 68Ga-NOTA-MAL-Cys39-exendin-4 PET/CT in one dose intravenously and underwent PET/CT scan 60 min later.
 Drug: 68Ga-NOTA-MAL-Cys39-exendin-4
After 68Ga-NOTA-MAL-Cys39-exendin-4 injection, the patient drank 300-500ml of water and urinated before the PET/CT scans.


Outcome Measures
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Primary Outcome Measures :
  1. Standardized uptake value [ Time Frame: 1 year ]
    Calculation of the standardized uptake value 68Ga-NOTA-MAL-Cys39-exendin-4 in Diagnosis of Insulinoma


Secondary Outcome Measures :
  1. GLP-1 receptor expression by histology compared to tracer uptake [ Time Frame: 1 year ]
    Pathological detection of GLP-1 receptor expression in patients' lesions and compared to tracer uptake by PET/CT

  2. Incidence of Adverse Events [ Time Frame: Adverse events within 1 week after the injection and scanning of patients will be followed and assessed ]
    This study will utilize the CTCAE (NCI Common Terminology Criteria for Adverse Events) Version 4.0 for toxicity and Serious Adverse Event reporting


Eligibility Criteria
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Ages Eligible for Study:   18 Years to 75 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  1. The patient volunteers and signs an informed consent form.
  2. age ≥18 and ≤75 years old;
  3. Patients with hypoglycaemia in the presence of neuroglycopenic symptoms and documented Whipple's triad;
  4. Biochemically proven endogenous hyperinsulinemic hypoglycaemia (plasma glucose concentration <3.0 mM, insulin >3 µU/ml, and C-peptide >0.6 ng/ml);
  5. Conventional imaging within 3 month.

Exclusion Criteria:

  1. Having a history of allergy to similar drugs, allergic constitution or suffering from allergic diseases;
  2. Breast feeding;
  3. Pregnancy or the wish to become pregnant within 6 months;
  4. Renal function: serum creatinine > 3.0 mg/dl;
  5. Any medical condition that, in the opinion of the investigator, may significantly interfere with study compliance.
Contacts and Locations
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Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04185350


Contacts
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Contact: Feng Wang, Ph.D +8602552271491 fengwangcn@hotmail.com

Locations
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China, Jiangsu
Nanjing First Hospital Recruiting
Nanjing, Jiangsu, China, 210006
Contact: Pengjun Zhang, M.S    +8602552271456    pengjunmr@163.com   
Sponsors and Collaborators
Nanjing First Hospital, Nanjing Medical University
Investigators
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Study Director: Feng Wang, Ph.D The First Affiliated Hospital with Nanjing Medical University
More Information
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Responsible Party: FengWang, Director of Nuclear Medicine, Nanjing First Hospital, Nanjing Medical University
ClinicalTrials.gov Identifier: NCT04185350    
Other Study ID Numbers: NJCNMC-GLP-1
First Posted: December 4, 2019    Key Record Dates
Last Update Posted: December 4, 2019
Last Verified: December 2019

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Insulinoma
Adenoma, Islet Cell
Adenoma
Neoplasms, Glandular and Epithelial
Neoplasms by Histologic Type
Neoplasms
Pancreatic Neoplasms
Digestive System Neoplasms
Neoplasms by Site
Endocrine Gland Neoplasms
 Digestive System Diseases
Pancreatic Diseases
Endocrine System Diseases
Exenatide
Hypoglycemic Agents
Physiological Effects of Drugs
Anti-Obesity Agents
Incretins
Hormones
Hormones, Hormone Substitutes, and Hormone Antagonists