Comparing blood PSMA-positive tumor cells with PSMA PET imaging and outcomes in prostate cancer
Official title: Prostate Cancer Burden and Heterogeneity Evaluation Towards Liquid Biopsy: a Correlation Study to 18FDCFPyL PET and Patients Outcome
Run by Institut Claudius Regaud · NCT06917781 · Data updated 2026-11-12
This will test whether PSMA-positive circulating tumor cells in a blood sample match 18F-PSMA PET scan results and help predict outcomes for people with prostate cancer getting PSMA PET imaging.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | Men only |
| Enrollment | 80 (estimated) |
| Sponsor | Institut Claudius Regaud Academic / other |
| Locations | 1 site (Toulouse) |
| Status | Recruiting |
| Started | October 28, 2025 |
| Main results expected | October 2027 |
| Study ends | October 2028 |
| Registry record updated | November 18, 2025 |
| Trial ID | NCT06917781 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults (≥18) with histologically confirmed prostate adenocarcinoma who are scheduled for 18F-PSMA PET imaging, can give informed consent, and are affiliated with French social health insurance.
✕Probably not a fit
Patients with neuroendocrine prostate cancer, concurrent PSMA-expressing non-prostate cancers, contraindications to PSMA PET, or who cannot provide informed consent are unlikely to benefit from this protocol.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This prospective, single-center proof-of-concept study enrolls adults with histologically confirmed prostate adenocarcinoma who are referred for 18F-PSMA PET imaging. Each participant gives a blood sample before their standard PET scan to detect PSMA-positive circulating tumor cells (CTC-PSMA). Imaging will be used to classify tumor burden into no, low/medium, or high-volume groups and those results will be correlated with CTC-PSMA status and subsequent clinical outcomes. The study aims to determine whether a liquid biopsy can mirror PSMA PET findings and relate to patient prognosis.
Why it matters
Potential benefit: If successful, a blood test for PSMA-positive circulating tumor cells could offer a less invasive way to reflect imaging tumor burden and help guide prognosis or monitoring.
How similar studies have gone: Previous work has separately measured PSMA PET imaging and PSMA-positive circulating tumor cells, but direct correlations with imaging and outcome data are limited, making this a relatively novel proof-of-concept.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Age ≥ 18 years 2. Histologically confirmed adenocarcinoma of the prostate 3. Indication for 18F-PET-PSMA imaging 4. Signed written informed consent 5. Patient able to participate and willing to give informed consent prior performance of any study-related procedures and to comply with the study protocol 6. Patient affiliated to a Social Health Insurance in France. Exclusion Criteria: 1. Patients with a contraindication to 18F-PET-PSMA 2. Patient with an established neuro endocrine prostate cancer 3. Concurrent malignancy known to express a significant amount of PSMA (renal cancer, salivary gland tumors) 4. Any psychological, familial, geographic or social situation, according to the judgment of investigator, potentially preventing the provision of informed consent or compliance to study procedure 5. Patient who has forfeited his freedom by administrative or legal award or who is under legal protection (curatorship and guardianship, protection of justice).
Where it's running
-
Iuct-O
Toulouse, France Recruiting
Study contacts
- Study coordinator: Thibaut CASSOU-MOUNAT
- Email: Cassou-Mounat.Thibaut@iuct-oncopole.fr
- Phone: +33 (0)5 31 15 65 49
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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.