New PET scan could spot hidden prostate cancer after treatment
NCT ID NCT07185165
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This phase II trial is testing whether a special PET/CT scan using flotufolastat F 18 can accurately find prostate cancer that remains or returns after focal therapy (such as laser or freezing). The study will enroll 81 men who had focal therapy 6 to 36 months ago. If the scan works well, it may offer a less invasive way to check for leftover cancer compared to standard methods.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Flotufolastat F 18 (radioactive tracer)
- What this could lead to
- If successful, this imaging method could offer a less invasive way to find residual or recurrent prostate cancer after focal therapy, potentially guiding better treatment decisions.
- What could go wrong
- This is a small, early-phase trial (81 participants) focused on imaging accuracy, not treatment. The method may not be reliable enough to replace standard biopsies, and results may not apply to all patients.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 81 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2025
- Expected to finish
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Oct 2036
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 90 years
- Sex
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Male participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
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)
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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UCLA / Jonsson Comprehensive Cancer Center
RECRUITINGLos Angeles, California, 90095, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- New PET-MRI tracer could sharpen prostate cancer biopsy accuracy
- New PET tracer could spot cancers that standard scans overlook