Skip to content

Dual-Tracer Theranostic PET

Dual-Tracer Theranostic PET

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05680675
Enrollment
50
Registered
2023-01-11
Start date
2022-12-08
Completion date
2024-06-04
Last updated
2025-02-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Neuroendocrine Tumors, Prostate Cancer

Keywords

somatostatin receptor-positive

Brief summary

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.

Interventions

DIAGNOSTIC_TESTSingle-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.

DIAGNOSTIC_TESTSingle-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.

DIAGNOSTIC_TESTSingle-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.

DIAGNOSTIC_TESTSingle-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.

Sponsors

MultiFunctional Imaging LLC
CollaboratorUNKNOWN
National Cancer Institute (NCI)
CollaboratorNIH
University of Utah
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

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.

Design outcomes

Primary

MeasureTime frameDescription
Completion of Two PET/CT Scans Per Patient as Dictated by Assigned ArmPET/CT exams were obtained on two separate days within a two week span.To obtain PET/CT imaging data suitable for developing new simultaneous dual-tracer PET techniques and processing algorithms for dual-tracer imaging of Fluorine-18 fluorodeoxyglucose (FDG) + Cu64-dodecane tetraacetic acid (DOTA) tyrosine-3-octreotate (TATE) (DOTATATE), FDG + Ga68-DOTATATE, and FDG + Ga68-prostate-specific membrane antigen (PSMA)-11 PET/CT

Countries

United States

Participant flow

Participants by arm

ArmCount
Single-Tracer FDG (F18 Fluorodeoxyglucose) PET/CT + Single-Tracer Cu64-DOTATATE PET/CT Exams
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. 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.
15
Single-Tracer FDG PET/CT + Single-Tracer Ga68-DOTATATE PET/CT Exams
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. 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.
15
Single-Tracer FDG PET/CT + Single-Tracer PSMA (Prostate-specific Membrane Antigen) PET/CT Exams
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. 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.
20
Total50

Baseline characteristics

CharacteristicSingle-Tracer FDG (F18 Fluorodeoxyglucose) PET/CT + Single-Tracer Cu64-DOTATATE PET/CT ExamsTotalSingle-Tracer FDG PET/CT + Single-Tracer PSMA (Prostate-specific Membrane Antigen) PET/CT ExamsSingle-Tracer FDG PET/CT + Single-Tracer Ga68-DOTATATE PET/CT Exams
Age, Continuous56.74 Years
STANDARD_DEVIATION 19.74
60.84 Years
STANDARD_DEVIATION 15.87
68.22 Years
STANDARD_DEVIATION 11.74
54.25 Years
STANDARD_DEVIATION 12.06
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
15 Participants46 Participants17 Participants14 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants4 Participants3 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants2 Participants1 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants4 Participants3 Participants1 Participants
Race (NIH/OMB)
White
15 Participants44 Participants16 Participants13 Participants
Region of Enrollment
United States
15 Participants50 Participants20 Participants15 Participants
Sex: Female, Male
Female
12 Participants20 Participants0 Participants8 Participants
Sex: Female, Male
Male
3 Participants30 Participants20 Participants7 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 150 / 150 / 20
other
Total, other adverse events
0 / 150 / 150 / 20
serious
Total, serious adverse events
0 / 150 / 150 / 20

Outcome results

Primary

Completion of Two PET/CT Scans Per Patient as Dictated by Assigned Arm

To obtain PET/CT imaging data suitable for developing new simultaneous dual-tracer PET techniques and processing algorithms for dual-tracer imaging of Fluorine-18 fluorodeoxyglucose (FDG) + Cu64-dodecane tetraacetic acid (DOTA) tyrosine-3-octreotate (TATE) (DOTATATE), FDG + Ga68-DOTATATE, and FDG + Ga68-prostate-specific membrane antigen (PSMA)-11 PET/CT

Time frame: PET/CT exams were obtained on two separate days within a two week span.

Population: All participants enrolled on trial completed two different PET/CT scans within a two week span.

ArmMeasureValue (COUNT_OF_UNITS)
Single-Tracer FDG (F18 Fluorodeoxyglucose) PET/CT + Single-Tracer Cu64-DOTATATE PET/CT ExamsCompletion of Two PET/CT Scans Per Patient as Dictated by Assigned Arm30 PET/CT scans
Single-Tracer FDG PET/CT + Single-Tracer Ga68-DOTATATE PET/CT ExamsCompletion of Two PET/CT Scans Per Patient as Dictated by Assigned Arm30 PET/CT scans
Single-Tracer FDG PET/CT + Single-Tracer PSMA (Prostate-specific Membrane Antigen) PET/CT ExamsCompletion of Two PET/CT Scans Per Patient as Dictated by Assigned Arm40 PET/CT scans

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026