Dual-Tracer Theranostic PET

NCT ID: NCT05680675

Last Updated: 2025-02-06

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-12-08

Study Completion Date

2024-06-04

Brief Summary

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This study is designed to obtain positron emission tomography with x-ray computed tomography (PET/CT) imaging data with each tracer pair, providing the imaging data needed to develop new simultaneous dual-tracer imaging techniques and processing algorithms for these tracer pairs.

Detailed Description

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Conditions

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Neuroendocrine Tumors Prostate Cancer

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Arm 1

Single-Tracer FDG (F18 Fluorodeoxyglucose) PET/CT exam + Single-Tracer Cu64-DOTATATE PET/CT

Group Type EXPERIMENTAL

Single-Tracer FDG PET/CT Exam

Intervention Type DIAGNOSTIC_TEST

The PET technologist will administer approximately 15 millicuries (mCi) of FDG intravenously, and the participant will remain resting during the tracer uptake period. A CT topogram will be obtained, and the PET imaging field-of-view (FOV) selected. The PET scan will then be acquired, acquiring 5 back-to-back "whole-body" (eyes-to-thighs, or similar) scans, providing 5 sequential PET images.

Single-Tracer Cu64-DOTATATE PET/CT Exam

Intervention Type DIAGNOSTIC_TEST

The PET technologist will administer with approximately 4 mCi Cu64-DOTATATE intravenously, and the participant will remain resting during the tracer uptake period. A CT topogram will be obtained, and the PET imaging field-of-view (FOV) selected. The PET scan will then be acquired, acquiring 5 back-to-back "whole-body" (eyes-to-thighs, or similar) scans, providing 5 sequential PET images.

Arm 2

Single-Tracer FDG PET/CT exam + Single-Tracer Ga68-DOTATATE PET/CT exam

Group Type EXPERIMENTAL

Single-Tracer FDG PET/CT Exam

Intervention Type DIAGNOSTIC_TEST

The PET technologist will administer approximately 15 millicuries (mCi) of FDG intravenously, and the participant will remain resting during the tracer uptake period. A CT topogram will be obtained, and the PET imaging field-of-view (FOV) selected. The PET scan will then be acquired, acquiring 5 back-to-back "whole-body" (eyes-to-thighs, or similar) scans, providing 5 sequential PET images.

Single-Tracer Ga68-DOTATATE PET/CT Exam

Intervention Type DIAGNOSTIC_TEST

The PET technologist will administer with with approximately 5 mCi Ga68-DOTATATE intravenously, and the participant will remain resting during the tracer uptake period. A CT topogram will be obtained, and the PET imaging field-of-view (FOV) selected. The PET scan will then be acquired, acquiring 5 back-to-back "whole-body" (eyes-to-thighs, or similar) scans, providing 5 sequential PET images.

Arm 3

Single-Tracer FDG PET/CT exam + Single-Tracer PSMA (prostate-specific membrane antigen) PET/CT exam

Group Type EXPERIMENTAL

Single-Tracer FDG PET/CT Exam

Intervention Type DIAGNOSTIC_TEST

The PET technologist will administer approximately 15 millicuries (mCi) of FDG intravenously, and the participant will remain resting during the tracer uptake period. A CT topogram will be obtained, and the PET imaging field-of-view (FOV) selected. The PET scan will then be acquired, acquiring 5 back-to-back "whole-body" (eyes-to-thighs, or similar) scans, providing 5 sequential PET images.

Single-Tracer PSMA PET/CT Exam

Intervention Type DIAGNOSTIC_TEST

The PET technologist will administer with with approximately 7 mCi Ga68-PSMA-11 intravenously, and the participant will remain resting during the tracer uptake period. A CT topogram will be obtained, and the PET imaging field-of-view (FOV) selected. The PET scan will then be acquired, acquiring 5 back-to-back "whole-body" (eyes-to-thighs, or similar) scans, providing 5 sequential PET images.

Interventions

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Single-Tracer FDG PET/CT Exam

The PET technologist will administer approximately 15 millicuries (mCi) of FDG intravenously, and the participant will remain resting during the tracer uptake period. A CT topogram will be obtained, and the PET imaging field-of-view (FOV) selected. The PET scan will then be acquired, acquiring 5 back-to-back "whole-body" (eyes-to-thighs, or similar) scans, providing 5 sequential PET images.

Intervention Type DIAGNOSTIC_TEST

Single-Tracer Cu64-DOTATATE PET/CT Exam

The PET technologist will administer with approximately 4 mCi Cu64-DOTATATE intravenously, and the participant will remain resting during the tracer uptake period. A CT topogram will be obtained, and the PET imaging field-of-view (FOV) selected. The PET scan will then be acquired, acquiring 5 back-to-back "whole-body" (eyes-to-thighs, or similar) scans, providing 5 sequential PET images.

Intervention Type DIAGNOSTIC_TEST

Single-Tracer Ga68-DOTATATE PET/CT Exam

The PET technologist will administer with with approximately 5 mCi Ga68-DOTATATE intravenously, and the participant will remain resting during the tracer uptake period. A CT topogram will be obtained, and the PET imaging field-of-view (FOV) selected. The PET scan will then be acquired, acquiring 5 back-to-back "whole-body" (eyes-to-thighs, or similar) scans, providing 5 sequential PET images.

Intervention Type DIAGNOSTIC_TEST

Single-Tracer PSMA PET/CT Exam

The PET technologist will administer with with approximately 7 mCi Ga68-PSMA-11 intravenously, and the participant will remain resting during the tracer uptake period. A CT topogram will be obtained, and the PET imaging field-of-view (FOV) selected. The PET scan will then be acquired, acquiring 5 back-to-back "whole-body" (eyes-to-thighs, or similar) scans, providing 5 sequential PET images.

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

* adults aged 18 years or greater.
* willing and able to sign a written informed consent and HIPAA authorization in accordance with local and institutional guidelines.
* presence of at least 1 measurable lesion ≥ 1 cm in size.
* willing to have their clinical records reviewed for at least 24 months after enrollment.
* willing to lie flat on their back in the PET/CT scanner for up to one hour to allow for the imaging data to be obtained.
* willing to undergo two separate PET/CT exams on different days within 2 weeks of each other.
* female participants who are not postmenopausal or surgically sterile will undergo a serum pregnancy test prior to baseline and the subsequent set of multi-tracer PET scans. The serum pregnancy test must be performed within 48 hours prior to research PET imaging. A negative test will be necessary for such patients to undergo research PET imaging. This only applies to Arms 1 and 2, since only males will be included in Arm 3 (only males can get prostate cancer).
* Arms 1 and 2 only: known or suspected somatostatin receptor-positive neuroendocrine tumor (NET) who could be considered for clinical use of DOTATATE PET/CT imaging under the approved indications for use of this radiopharmaceutical according to published appropriate use criteria. These indications include initial staging after the histologic diagnosis of NET, evaluation of an unknown primary; evaluation of a mass suggestive of NET not amenable to endoscopic or percutaneous biopsy, staging of NET before planned surgery, monitoring of NET seen predominantly on somatostatin receptor (SSTR) PET, evaluation of patients with biochemical evidence and symptoms of a NET, evaluation of patients with biochemical evidence of a NET without evidence on conventional imaging or a prior histologic diagnosis, restaging at time of clinical or laboratory progression without progression on conventional imaging, and new indeterminate lesion on conventional imaging with unclear progression.
* Arm 3 Only: known or suspected prostate cancer who could be considered for clinical use of PSMA PET/CT imaging under the approved indications for use of this radiopharmaceutical, including patients with suspected metastasis and patients with suspected recurrence based on elevated serum prostate-specific antigen (PSA) level.

Exclusion Criteria

* received somatostatin receptor targeted therapy at any time prior to enrollment will be excluded from the study Arms involving DOTATATE (Arms 1-2).
* known intolerance or hypersensitivity to any somatostatin analogs will be excluded from the study Arms involving DOTATATE (Arms 1-2).
* participated in any therapeutic clinical study or received any investigational agent within the last 30 days.
* known allergic or hypersensitivity reactions to previously administered radiopharmaceuticals
* require monitored anesthesia for PET/CT scanning.
* too claustrophobic to undergo PET/CT scanning.
* exceed the 450 lb. weight limit of the PET/CT scanner.
* pregnant or currently breast feeding.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Utah

OTHER

Sponsor Role lead

MultiFunctional Imaging LLC

UNKNOWN

Sponsor Role collaborator

National Cancer Institute (NCI)

NIH

Sponsor Role collaborator

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jeffrey A Yap, PhD

Role: PRINCIPAL_INVESTIGATOR

Huntsman Cancer Institute/ University of Utah

Locations

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Huntsman Cancer Institute

Salt Lake City, Utah, United States

Site Status

Countries

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United States

Provided Documents

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Document Type: Study Protocol and Statistical Analysis Plan

View Document

Document Type: Informed Consent Form

View Document

Other Identifiers

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2R44CA257522

Identifier Type: NIH

Identifier Source: secondary_id

View Link

HCI158172

Identifier Type: -

Identifier Source: org_study_id

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