Imaging Properties of PET Radiotracer [18F]3F-PHPG in Patients With Neuroendocrine Tumors

NCT ID: NCT04510311

Last Updated: 2025-01-10

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

COMPLETED

Clinical Phase

EARLY_PHASE1

Total Enrollment

32 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-10-19

Study Completion Date

2024-12-31

Brief Summary

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The goal of this exploratory study is to test whether \[18F\]3F-PHPG can be used reliably to map the locations of tumors in patients with neuroendocrine tumors. If so, the results of this study will be used to support further development of \[18F\]3F-PHPG as a clinical tool for neuroendocrine tumor localization and staging.

Detailed Description

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Subjects enrolled in this study will be recruited from the population of adult patients with neuroendocrine tumors, including pheochromocytoma and paraganglioma, being treated at the University of Michigan Hospital.

The primary objective of the study is to obtain basic information on the biodistribution and pharmacokinetics of \[18F\]3F-PHPG in cancer patients with neuroendocrine tumors.

The secondary objective of the study is to compare the diagnostic performance of \[18F\]3F-PHPG in cancer patients with neuroendocrine tumors with the FDA approved radiopharmaceuticals \[123I\]metaiodobenzylguanidine (\[123I\]MIBG) and \[68Ga\]DOTA-TATE in the same patients. A group of approximately 12 of the subjects scanned with \[18F\]3F-PHPG will be recruited to undergo a whole-body \[123I\]MIBG scan using planar scintigraphy with a gamma camera, following the standard clinical protocol used at the University of Michigan. In addition, a single SPECT/CT scan of the primary neuroendocrine tumor will be acquired after the whole-body scan to provide a tomographic image for comparison with the positron emission tomography (PET) image acquired using \[18F\]3F-PHPG. Several subjects enrolled on this study will undergo \[68Ga\]DOTA-TATE scans off-study, as part of routine clinical management. Existing \[68Ga\]DOTA-TATE scans will be obtained from consenting subjects' medical records.

This is an exploratory study and thus all statistical data analyses will be exploratory in nature.

Conditions

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Neuroendocrine Tumors

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

All subjects (30 anticipated) will receive a PET/CT scan using the novel radiotracer \[18F\]3F-PHPG as an imaging agent. Within 60 days after the \[18F\]3F-PHPG PET/CT scan, approximately 12 of the subjects will also receive an FDA approved radiotracer \[123I\]MIBG one day prior to whole-body planar scintigraphy and SPECT/CT scans. The \[123I\]MIBG scans are standard clinical imaging procedures.
Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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PET/CT scan with radiotracer [18F]3F-PHPG

Novel radiotracer \[18F\]3F-PHPG prior to whole-body PET/CT scan.

Group Type EXPERIMENTAL

3-[18F]Fluoro-para-hydroxyphenethylguanidine

Intervention Type DRUG

Single IV injection of 12.0 mCi (+/- 10%) \[18F\]3F-PHPG

Positron emission tomography/computed tomography scan

Intervention Type DIAGNOSTIC_TEST

Whole-body PET/CT scan performed at two time-points: 1.5 hours and 3 hours after IV injection of \[18F\]3F-PHPG

Planar scintigraphy/SPECT scans with radiotracer [123I]MIBG

FDA approved radiotracer \[123I\]MIBG prior to whole-body planar scintigraphy and SPECT/CT scan (standard clinical imaging procedures).

Group Type ACTIVE_COMPARATOR

3-[18F]Fluoro-para-hydroxyphenethylguanidine

Intervention Type DRUG

Single IV injection of 12.0 mCi (+/- 10%) \[18F\]3F-PHPG

[123I] metaiodobenzylguanidine

Intervention Type DRUG

Single IV injection of 10.0 mCi \[123I\]MIBG

Positron emission tomography/computed tomography scan

Intervention Type DIAGNOSTIC_TEST

Whole-body PET/CT scan performed at two time-points: 1.5 hours and 3 hours after IV injection of \[18F\]3F-PHPG

Planar scintigraphy scan

Intervention Type DIAGNOSTIC_TEST

Whole-body scan using planar scintigraphy with a gamma camera performed the day after IV injection of \[123I\]MIBG

Single photon emission computed tomography/computed tomography scan

Intervention Type DIAGNOSTIC_TEST

SPECT/CT scan of the primary neuroendocrine tumor performed the day after IV injection of \[123I\]MIBG

Interventions

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3-[18F]Fluoro-para-hydroxyphenethylguanidine

Single IV injection of 12.0 mCi (+/- 10%) \[18F\]3F-PHPG

Intervention Type DRUG

[123I] metaiodobenzylguanidine

Single IV injection of 10.0 mCi \[123I\]MIBG

Intervention Type DRUG

Positron emission tomography/computed tomography scan

Whole-body PET/CT scan performed at two time-points: 1.5 hours and 3 hours after IV injection of \[18F\]3F-PHPG

Intervention Type DIAGNOSTIC_TEST

Planar scintigraphy scan

Whole-body scan using planar scintigraphy with a gamma camera performed the day after IV injection of \[123I\]MIBG

Intervention Type DIAGNOSTIC_TEST

Single photon emission computed tomography/computed tomography scan

SPECT/CT scan of the primary neuroendocrine tumor performed the day after IV injection of \[123I\]MIBG

Intervention Type DIAGNOSTIC_TEST

Other Intervention Names

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[18F]3F-PHPG [123I]MIBG AdreView™ PET/CT SPECT/CT scan

Eligibility Criteria

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Inclusion Criteria

* Current neuroendocrine tumor diagnosis
* Able to lie flat for 60 minutes
* Provision of informed consent

Exclusion Criteria

* Pregnancy or lactation
* Claustrophobia
* Inability to lie flat for 60 minutes
* Currently taking medications that may alter PET scans of neuroendocrine tumors with these tracers, including any of the following:

* Tricyclic antidepressants, which inhibit the norepinephrine transporter: desipramine, amitriptyline, imipramine
* Cold medications containing the sympathomimetic amines: phenylephrine, phenylpropanolamine, pseudoephedrine
* Nasal decongestants (some use phenylephrine as the active agent)
* Cocaine (which inhibits the norepinephrine transporter)
* Tetrabenazine (Xenazine), which inhibits the VMAT2 transporter
* Monoamine oxidase inhibitors (MAOI)
* Some antihypertensive drugs: reserpine, labetalol, α-methyldopa, clonidine
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Michigan Rogel Cancer Center

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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David Raffel, Ph.D.

Role: PRINCIPAL_INVESTIGATOR

University of Michigan Rogel Cancer Center

Locations

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University of Michigan Rogel Cancer Center

Ann Arbor, Michigan, United States

Site Status

Countries

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United States

Other Identifiers

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HUM00167104

Identifier Type: OTHER

Identifier Source: secondary_id

UM-FHPG-03

Identifier Type: OTHER

Identifier Source: secondary_id

UMCC 2019.174

Identifier Type: -

Identifier Source: org_study_id

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