An Investigational Scan (Flotufolastat F 18 PET/CT) for Detecting Residual or Recurrent Disease in Patients Who Completed Focal Therapy for Prostate Cancer.

NCT ID: NCT07185165

Last Updated: 2025-11-10

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

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

81 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-10-09

Study Completion Date

2036-10-25

Brief Summary

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This phase II trial evaluates how well flotufolastat F 18 positron emission tomography (PET)/computed tomography (CT) imaging works to detect cancer that remains (residual) or that has come back (recurrent) after the completion of focal therapy for prostate cancer. Flotufolastat F 18 is a radioactive tracer that binds to prostate specific membrane antigen (PSMA), a protein over-expressed on prostate tumor cells. This allows for visualization of PSMA-expressing cells upon imaging. PET is an established imaging technique that utilizes small amounts of radioactivity attached to very minimal amounts of, in the case of this research, flotufolastat F 18. Because prostate cancer takes up flotufolastat F 18, it can be seen with PET. CT utilizes x-rays that track the body from the outside. CT images provide an exact outline of the organs and potential inflammatory tissue where it occurs in the body. The PET/CT scanner combines the PET and the CT scanners into a single device. This device combines the anatomic (body structure) information provided by the CT scan with the metabolic information obtained from the PET scan. Metabolic information means how much of the injected tracer is taken up by inflammatory tissue. Flotufolastat F 18 PET/CT imaging may be an effective and less invasive way to detect residual or recurrent disease in prostate cancer patients, compared to other methods.

Detailed Description

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PRIMARY OBJECTIVE:

I. To evaluate the accuracy of fluorine F 18 flotufolastat (flotufolastat F 18) compared with prostate biopsy to determine treatment success following focal therapy of the prostate.

SECONDARY OBJECTIVE:

I. To evaluate the standard uptake volume (SUV) threshold of flotufolastat F 18 compared to Gleason score.

EXPLORATORY OBJECTIVE:

I. To compare how flotufolastat F 18 and gallium Ga 68 gozetotide (Ga 68 PSMA 11) are distributed within the prostate in men who have previously undergone focal therapy.

OUTLINE:

Patients receive flotufolastat F-18 intravenously (IV). Then 50-100 minutes after injection, patients undergo whole-body PET/CT over 20-50 minutes. Patients then undergo PET/CT/ultrasound fusion biopsy within 3 months.

After completion of study intervention, patients are followed up at 1 month post-biopsy and then every 12 months for up to 10 years.

Conditions

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Prostate Carcinoma

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Diagnostic (flotufolastat F-18 PET/CT)

Patients receive flotufolastat F-18 IV. Then 50-100 minutes after injection, patients undergo whole-body PET/CT over 20-50 minutes. Patients then undergo PET/CT/ultrasound fusion biopsy within 3 months.

Group Type EXPERIMENTAL

Computed Tomography

Intervention Type PROCEDURE

Undergo PET/CT

Fluorine F 18 Flotufolastat

Intervention Type DRUG

Given IV

Positron Emission Tomography

Intervention Type PROCEDURE

Undergo PET/CT

Ultrasound-Guided Prostate Biopsy

Intervention Type PROCEDURE

Undergo PET/CT/ultrasound fusion biopsy

Interventions

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Computed Tomography

Undergo PET/CT

Intervention Type PROCEDURE

Fluorine F 18 Flotufolastat

Given IV

Intervention Type DRUG

Positron Emission Tomography

Undergo PET/CT

Intervention Type PROCEDURE

Ultrasound-Guided Prostate Biopsy

Undergo PET/CT/ultrasound fusion biopsy

Intervention Type PROCEDURE

Other Intervention Names

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CAT CAT Scan Computed Axial Tomography Computerized Axial Tomography Computerized axial tomography (procedure) Computerized Tomography Computerized Tomography (CT) scan CT CT Scan Diagnostic CAT Scan Diagnostic CAT Scan Service Type tomography FLOTUFOLASTAT F-18 RHPSMA-7.3C Medical Imaging, Positron Emission Tomography PET PET Scan Positron emission tomography (procedure) Positron Emission Tomography Scan Positron-Emission Tomography PT

Eligibility Criteria

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Inclusion Criteria

* Men aged 18-90 at study enrollment
* History of prostate cancer
* Men who have had focal therapy (laser, cryotherapy, high-intensity focused ultrasound \[HIFU\], Tulsa Pro, irreversible electroporation \[IRE\], brachytherapy) within 6-36 months of enrollment

Exclusion Criteria

* Contraindication to flotufolastat F 18 PET CT
* Contraindication to ultrasound-guided prostate biopsy
* Patients who are planned to have an x-ray contrast agent or other PET radiotracer \< 24 hours prior to the PET scan
* Patients with castrate levels of testosterone secondary to androgen deprivation therapy
* Inability to provide written informed consent
* Known inability to remain still and lie flat for the duration of the PET/CT (about 30 minutes)
* Any investigational agents within 42 days prior to the day of the first dose
* Not able to understand and to follow study instructions and requirements. This also includes the inability to complete the study imaging and or biopsy procedures due to any reason (e.g., severe claustrophobia, inability to lie still for the entire imaging time, any condition that precludes raised arms position)
Minimum Eligible Age

18 Years

Maximum Eligible Age

90 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Blue Earth Diagnostics

INDUSTRY

Sponsor Role collaborator

Jonsson Comprehensive Cancer Center

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Wayne Brisbane

Role: PRINCIPAL_INVESTIGATOR

UCLA / Jonsson Comprehensive Cancer Center

Locations

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UCLA / Jonsson Comprehensive Cancer Center

Los Angeles, California, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Kyla Grunden

Role: CONTACT

Phone: 310-206-7576

Email: [email protected]

Facility Contacts

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Kyla Grunden

Role: primary

Other Identifiers

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NCI-2025-06280

Identifier Type: REGISTRY

Identifier Source: secondary_id

24-1371

Identifier Type: -

Identifier Source: org_study_id