F-18 FDOPA PET/CT Versus I-123 MIBG Scintigraphy With SPECT/CT for the Diagnosis of Pheochromocytoma and Paraganglioma

July 13, 2023 updated by: Jin-Sook Ryu, Asan Medical Center

A Prospective Comparative Study of 18F-FDOPA PET/CT Versus 123I-MIBG Scintigraphy With SPECT/CT for the Diagnosis of Pheochromocytoma and Paraganglioma

Pheochromocytomas and paragangliomas (PPGLs) are chromaffin cells-derived tomours that originate from the adrenal medulla (80~85%) and the extra-adrenal sympathetic paraganglia in thorax, abdomen and pelvis (15~20%) or parasympathetic paraganglia in the head and neck region (~1%), respectively. Functional imaging, such as 123I-Meta-Iodobenzylguanidine (MIBG) scintigraphy with single photon emission computed tomography with a CT (SPECT/CT), offers high specificity for PPGL but necessitates 24-hour delayed imaging, pre-processing thyroid protection with a potassium iodide solution, and medication reconciliation to prevent the inhibition of 123I-MIBG uptake. Conversely, 18F-L-dihydroxyphenylalanine (FDOPA), a radiopharmaceutical for positron emission tomography (PET) imaging, is specifically absorbed and accumulated by chromaffin cells, offering better image quality and convenience compared to 123I-MIBG scintigraphy. 18F-FDOPA PET/CT has been approved for the localization, staging, and detection of PPGL recurrences in European and other countries. Therefore, the aim of this study was to compare prospectively the diagnostic performances of 18F-FDOPA PET/CT and 123I-MIBG scintigraphy with SPECT/CT in patients with PPGL.

Study Overview

Status

Terminated

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

32

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

  • Korea, Republic of
    • Songpa-gu
      • Seoul, Songpa-gu, Korea, Republic of, 05505
        • Asan Medical Center

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Patients suspected of having PPGL or those showing recurrence and/or distant metastasis of PPGL were enrolled

Description

Inclusion Criteria:

  1. suspected PPGL based on a biochemical screening, including 24-hour urinary total normetanephrine, metanephrine, norepinephrine, and epinephrine, along with plasma free concentrations of normetanephrine and metanephrine conducted within the past 6 months
  2. an adrenal incidentaloma, suggestive of PPGL on anatomical imaging (CT or MRI) performed within the past 6 months
  3. characteristic symptoms and signs of PPGL
  4. suspected of recurrence or metastases of known PPGL.

Exclusion Criteria:

  • pregnant and lactating women
  • individuals aged less than 15 years
  • patients with a serum creatinine level greater than 3 mg/dL due to chronic renal failure
  • patients with a second primary cancer that was not in complete remission

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

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Pheochromocytoma / paraganglioma
Diagnostic test: F-18 FDOPA PET/CT
Nuclear medicine imaging modalities
Other Names:
  • I-123 MIBG SPECT/CT

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Non-inferiority in diagnostic sensitivity of F-18 FDOPA PET/CT compared with that of I-123 MIBG SPECT/CT
Time Frame: Time interval of two imaging modalities was in the range of 1-15 days
Time interval of two imaging modalities was in the range of 1-15 days

Collaborators and Investigators

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

Sponsor

Asan Medical Center

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 (Actual)

September 21, 2017

Primary Completion (Actual)

June 30, 2020

Study Completion (Actual)

June 30, 2020

Study Registration Dates

First Submitted

July 7, 2023

First Submitted That Met QC Criteria

July 13, 2023

First Posted (Actual)

July 17, 2023

Study Record Updates

Last Update Posted (Actual)

July 17, 2023

Last Update Submitted That Met QC Criteria

July 13, 2023

Last Verified

July 1, 2023

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • FDOPA_2014_0901

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

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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