Recruiting
Early Phase 1

Flotufolastat F 18

Sponsor:

Jonsson Comprehensive Cancer Center

Code:

NCT07164027

Conditions

Prostate Carcinoma

Eligibility Criteria

Sex: Male

Age: 18 - 70+

Healthy Volunteers: Not accepted

Interventions

Biopsy of Prostate

Biospecimen Collection

Computed Tomography

Flotufolastat F-18 Gallium

Positron Emission Tomography

Study Details

Brief summary:

This early phase I trial evaluates whether a new imaging technique using flotufolastat F 18 (a type of prostate specific membrane antigen \[PSMA\] imaging agent) with positron emission tomography (PET)/computed tomography (CT) can be used to guide targeted prostate biopsies in men with prostate cancer. Flotufolastat F 18 is a radioactive imaging agent that binds to prostate tumor cells that express PSMA. This allows for visualization of PSMA-expressing tumor cells on imaging scans such as PET/CT. PET is an established imaging technique that utilizes small amounts of radioactivity attached to very minimal amounts of tracer, 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 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. A targeted prostate biopsy refers to using advanced imaging for guidance when taking samples (biopsies) of the prostate. This method can fuse (combine) PET/CT images with real-time ultrasound during a prostate biopsy. PSMA PET/CT scans have the potential for guiding prostate biopsies. Using image fusion technology, they can increase detection of prostate cancer by providing anatomical information and guidance during a prostate biopsy. Improved detection of prostate cancer using PSMA PET/CT guidance may better inform men and their clinicians about prostate cancer risk and management. This study attempts to determine how often prostate cancer is found when using PSMA PET/CT scan images during a biopsy versus the conventional magnetic resonance imaging-guidance.

Conditions

Prostate Carcinoma

Study ID

NCT07164027

Start date

Nov 14, 2025

Status verified date

Mar, 2026

Completion date

Jan 28, 2037

Anticipated

Primary completion date

Jan 28, 2036

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: Male

Age: 18 - 70+

Healthy Volunteers: Not accepted

Inclusion Criteria:

  • Men aged 18-90 at study enrollment
  • Have at least one PI-RADS 3-5 lesion on MRI within the 12 months prior to enrollment

Exclusion Criteria:

  • Contraindication to flotufolastat F 18 PET CT
  • Contraindication to ultrasound-guided prostate biopsy
  • Previous treatment of prostate cancer
  • Unable to discontinue blood thinners for 7 days prior to biopsy
  • 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)

Study Design

Enrollment

30 participants

Anticipated

Intervention Model

Single group

Primary purpose

Diagnostic

Interventions and Outcome Measures

Arms

experimental: Diagnostic (flotufolastat F-18 PET/CT)

Patients receive flotufolastat F-18 IV and then, 50-100 minutes later, undergo PET/CT over 30 minutes. Within 6 months of PET/CT imaging, patients undergo PSMA PET/CT/US fusion biopsy and MRI/US fusion biopsy in a randomized order. Patients may undergo blood sample collection at screening and/or on study.

Interventions

Biopsy of Prostate

Undergo biopsy

Biospecimen Collection

Undergo collection of blood samples

Computed Tomography

Undergo PET/CT

Flotufolastat F-18 Gallium

Given IV

Positron Emission Tomography

Undergo PET/CT

Primary outcome measure

  • Detection of high-grade cancer (grade group [GG] ≥ 2) [ Time Frame: At time of biopsy ]

Central Contacts and Locations

Central contacts

Locations

UCLA / Jonsson Comprehensive Cancer Center

Recruiting

Los Angeles, California, United States, 90095

Contacts

Principal Investigator:

Wayne Brisbane, MD

More Information

Sponsor

Jonsson Comprehensive Cancer Center

Last update posted

Mar 10, 2026

Last verified

Mar, 2026

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-09. This information was provided to ClinicalTrials.gov by Jonsson Comprehensive Cancer Center on 2026-03-10.