DOTATOC PET/CT for Imaging NET Patients

NCT ID: NCT03583528

Last Updated: 2025-06-13

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Total Enrollment

800 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-07-11

Study Completion Date

2028-09-30

Brief Summary

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Neuroendocrine tumours (NETs) are generally slow growing, but some can be aggressive and resistant to treatment. Compared to healthy cells, the surface of these tumor cells has a greater number of special molecules called somatostatin receptors (SSTR). Somatostatin receptor scintigraphy and conventional imaging are used to detect NETs.

This study proposes 68Gallium(68Ga)-DOTATOC positron emission tomography/computed tomography (PET/CT) is superior to current imaging techniques. The goal is to evaluate the safety and sensitivity of 68Ga-DOTATOC PET/CT at detecting NETs and other tumors with over-expression of somatostatin receptors.

Detailed Description

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Each subject will have two PET/CT scans, one using 68Ga-DOTATOC and the other using 18-Fluoride-Fluorodeoxyglucose (18F-FDG). The 68Ga-DOTATOC radioactive tracer is manufactured for this study under a Clinical Trial Application filed with Health Canada. 18F-FDG is considered standard care and has been approved by Health Canada.

After providing informed written consent subjects will complete a medical history questionnaire.

Monitoring of adverse events There will be short-term evaluation of adverse events by comparison of vital signs before and after administration of 68Ga-DOTATOC. Twenty-four hours after 68Ga-DOTATOC administration the study coordinator will call the patient and see if they have experienced any adverse events during that time period and complete the adverse event questionnaire found in section 9.6.

Follow-up Assessments

The following information will be collected up to 3 years following the PET/CT scans:

* Initiation of a new treatment
* Laboratory results and pathology reports
* Results of imaging studies
* Final clinical diagnosis by physician and relevant clinical notes

The study is expected to take approximately 4 years for accrual.

Conditions

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Neuroendocrine Tumors Insulinoma Gastrinoma Glucagonoma Vipoma Pheochromocytoma Paraganglioma Neuroblastoma Ganglioneuroma Medullary Carcinoma Pituitary Adenoma Medulloblastoma Merkel Cell Carcinoma Small-cell Lung Cancer Meningioma Carcinoid

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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PET/CT Diagnostic Imaging

Each subject will have two PET/CT scans, one using 68Ga-DOTATOC and the other using 18F-FDG. The 68Ga-DOTATOC radioactive tracer is manufactured for this study under a Clinical Trial Application filed with Health Canada. 18F-FDG is considered standard care and has been approved by Health Canada.

68Ga-DOTATOC PET/CT

Intervention Type DIAGNOSTIC_TEST

Blood pressure, heart rate, and oxygen saturation levels will be recorded prior to the injection and at 5 - 15 minutes after injection.

Each study subject will have an intravenous catheter inserted. The subject will receive a bolus intravenous dose of the radiotracer from an approved study supplier site.

The subject will rest in a comfortable chair for 60 minutes. After this uptake phase, the blood pressure, heart rate, and oxygen saturation levels will be recorded again. The subjects will then be taken to a designated washroom and asked to void prior to being scanned in order to clear excreted radiotracer activity from the urinary tract.

Subjects are positioned supine, arms down, and centered on the scanner bed and the PET/CT images will be acquired.

18F-FDG PET/CT

Intervention Type DIAGNOSTIC_TEST

18F-FDG PET/CT For 18F-FDG as fasting period of 6 hours is required before the scan.

Each study subject will have an intravenous catheter inserted. The subject will receive a bolus intravenous dose of the radiotracer from an approved study supplier site.

The subject will rest in a comfortable chair for 60 minutes. The subjects will then be taken to a designated washroom and asked to void prior to being scanned in order to clear excreted radiotracer activity from the urinary tract.

Subjects are positioned supine, arms down, and centered on the scanner bed and the PET/CT images will be acquired.

Interventions

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68Ga-DOTATOC PET/CT

Blood pressure, heart rate, and oxygen saturation levels will be recorded prior to the injection and at 5 - 15 minutes after injection.

Each study subject will have an intravenous catheter inserted. The subject will receive a bolus intravenous dose of the radiotracer from an approved study supplier site.

The subject will rest in a comfortable chair for 60 minutes. After this uptake phase, the blood pressure, heart rate, and oxygen saturation levels will be recorded again. The subjects will then be taken to a designated washroom and asked to void prior to being scanned in order to clear excreted radiotracer activity from the urinary tract.

Subjects are positioned supine, arms down, and centered on the scanner bed and the PET/CT images will be acquired.

Intervention Type DIAGNOSTIC_TEST

18F-FDG PET/CT

18F-FDG PET/CT For 18F-FDG as fasting period of 6 hours is required before the scan.

Each study subject will have an intravenous catheter inserted. The subject will receive a bolus intravenous dose of the radiotracer from an approved study supplier site.

The subject will rest in a comfortable chair for 60 minutes. The subjects will then be taken to a designated washroom and asked to void prior to being scanned in order to clear excreted radiotracer activity from the urinary tract.

Subjects are positioned supine, arms down, and centered on the scanner bed and the PET/CT images will be acquired.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

All subjects:

* World health organization performance status 0-2
* Able to provide written informed consent/assent (or consent by guardian for subjects \<19 years)
* Patients must be able to tolerate the physical/logistical requirements of completing a PET scan including lying flat for up to 30 minutes and tolerating intravenous cannulation for injection.

Patients must require imaging for either staging or re-staging of:

* Gastroenteropancreatic tumors (e.g. carcinoids, gastrinoma, insulinoma, glucagonoma, VIPoma, etc.), functioning and non-functioning
* Sympathoadrenal system tumors (phaeochromocytoma, paraganglioma, neuroblastoma, ganglioneuroma)
* Medullary thyroid carcinoma
* Pituitary adenoma
* Medulloblastoma
* Merkel cell carcinoma
* Small-cell lung cancer (mainly primary tumors)
* Meningioma
* Or any other NET / with potential for overexpression of SSTR

Exclusion Criteria

* Pregnancy
* Patients who are medically unstable ex: acute cardiac or respiratory distress, hypotensive
* Patients who exceed the safe weight limit of the PET/CT bed (204.5 kg) or who cannot fit through the PET/CT bore (diameter 70cm).
Minimum Eligible Age

18 Years

Maximum Eligible Age

100 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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British Columbia Cancer Agency

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Francois Benard, MD

Role: PRINCIPAL_INVESTIGATOR

BC Cancer

Locations

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BC Cancer

Vancouver, British Columbia, Canada

Site Status

Countries

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Canada

Other Identifiers

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H17-00909

Identifier Type: -

Identifier Source: org_study_id

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