Dynamic 68Ga-PSMA and 18F-FDG PET/CT scans before 177Lu-PSMA treatment
Official title: Dynamic 68Ga-PSMA and 18F-FDG PET/CT Analysis of Metastatic Prostatic Adenocarcinomas Prior to 177Lu-PSMA Treatment
Run by Centre Henri Becquerel · NCT06450548 · Data updated 2026-11-12
This will test whether dynamic 68Ga‑PSMA and 18F‑FDG PET/CT scans can better identify men with metastatic castration‑resistant prostate cancer who are likely to benefit from 177Lu‑PSMA therapy.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | Men only |
| Enrollment | 60 (estimated) |
| Sponsor | Centre Henri Becquerel Academic / other |
| Drugs / interventions | chemotherapy, radiation |
| Locations | 1 site (Rouen) |
| Status | Recruiting |
| Started | March 5, 2025 |
| Main results expected | March 5, 2028 |
| Study ends | March 5, 2028 |
| Registry record updated | January 2, 2026 |
| Trial ID | NCT06450548 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are men with histologically confirmed metastatic castration‑resistant prostate adenocarcinoma who have progressed after taxane chemotherapy and at least one anti‑androgen therapy and who can undergo both 68Ga‑PSMA and 18F‑FDG PET/CT scans.
✕Probably not a fit
Patients who cannot tolerate prolonged imaging sessions, cannot complete both PET/CT examinations, or who lack PSMA‑positive disease are unlikely to gain direct benefit from the imaging approach in this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
Patients with progressive metastatic castration‑resistant prostate cancer who have received taxane chemotherapy and at least one androgen‑receptor–targeted therapy undergo both dynamic 68Ga‑PSMA and 18F‑FDG PET/CT imaging prior to possible 177Lu‑PSMA treatment. The study uses parametric (dynamic) PET acquisition and kinetic analysis to compare tracer behavior across lesions and to detect FDG‑positive/PSMA‑negative sites associated with poorer prognosis. Investigators will compare dynamic parametric measures to standard imaging readouts to see if they improve lesion characterization and treatment selection. This single‑center study at Centre Henri Becquerel aims to inform which patients should be offered 177Lu‑PSMA therapy based on imaging biology.
Why it matters
Potential benefit: If successful, this approach could help doctors choose 177Lu‑PSMA therapy more accurately and avoid giving it to patients unlikely to benefit.
How similar studies have gone: Large trials like VISION have shown survival benefit for 177Lu‑PSMA‑617, but the use of dynamic parametric PET to better select patients is relatively novel with limited prior data.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Signed informed consent. * Progressive metastatic castration-resistant prostate adenocarcinoma, which has been treated with taxane chemotherapy and at least one anti-androgen hormone therapy. * Evaluated by 18F-FDG and 68Ga-PSMA PET/CT prior to potential treatment with 177Lu-PSMA. * Affiliated with or beneficiary of a social protection scheme. * WHO stage 0 or 1. Exclusion Criteria: * Patients unable to understand the study for any reason or comply with the trial requirements (due to language barriers, psychological issues, geographical constraints, etc.). * Patients unable to undergo the examinations and/or maintain a prolonged lying position (due to back pain, etc.).
Where it's running
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Centre Henri Becquerel
Rouen, France Recruiting
Study contacts
- Study coordinator: Pierre Decazes, MD,PhD
- Email: pierre.decazes@chb.unicancer.fr
- Phone: +3276673059
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.