AzTrials
AzTrials

Prostate CancerC-ProMeta-1NCT05533515

Circulating Tumour Cells as Biomarkers to Predict Prostate Cancer Metastasis for Treatment Stratification of Cancer

An observational study of Prostate Cancer, run by Queen Mary University of London at 1 site in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

The goal of this study is to establish the value of Circulating Tumour Cell (CTC) positivity in predicting post-RP treatment failure, including BCR and new lesions detected by cancer imaging. We plan to recruit participants who will undergo Radical Prostatectomy (RP). Read more about this study

Who is it for?
Ages 18 to 99 years, men only
Conditions the study is for
Prostate Cancer
What is being tested?
CTC Blood Test
How many people
330 participants
Where
1 siteUnited Kingdom
Study dates
8 Feb 2022to 5 Mar 2024
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 99 years
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Study population: In order to recruit patients meeting the eligibility criteria, it will be necessary to screen all patients in the participating centre who are diagnosed with high risk localised PCa based on the current European Urology Association classification system and who have been scheduled for surgery to completely remove the cancer in the prostate gland.

Who may be able to join

  • High/High intermediate risk non-metastatic risk localised PCa based on the EAU stratification system
  • Scheduled for robot-assisted RP
  • Informed consent

Who cannot join

  • With other co-occurring cancers
  • Neo-adjuvant ADT
  • Adjuvant ADT

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • University College London Hospitals

    London

Other trials in United Kingdom

About this study

Official title: Circulating Tumour Cells as Biomarkers to Predict Prostate Cancer Metastasis for Treatment Stratification of Localised Cancer

The goal of this study is to establish the value of Circulating Tumour Cell (CTC) positivity in predicting post-RP treatment failure, including BCR and new lesions detected by cancer imaging. We plan to recruit participants who will undergo Radical Prostatectomy (RP). Participants will have their blood samples taken just before surgery and 3 months after the surgery to test for CTCs. Then participants will be followed-up for cancer progression information at 3 month intervals for the first year then yearly intervals after that. Their PSA will be observed over time.

Read the detailed description

This is a single site, double-blinded, prospective, paired cohort study. Participating patients and clinicians involved in treatment or management will be blinded to the CTC results, to avoid influencing standard patient treatment, management, and progression outcomes after RP.

Patients will be recruited (months 1-24) at UCLH, where the UK largest urological surgery centre is located and performs robot-assisted RP on PCa patients referred from several regional hospitals. The clinical team at UCLH will identify eligible patients who will be approached by the clinical research fellow (CRF) employed on the research project or the clinical care team for informed consent using the consent forms specifically designed for this project for blood collection and future research. Non-metastatic disease will be based on the current standard diagnostic imaging methods including CT/MRI and PSMA-PET/bone scan. A pre-surgery PSA test will be performed routinely at UCLH.

2 x 10 ml blood samples will be collected (months 1-27) using the lavender cap EDTA tube according to our established method from each consented patient by the CRF or the clinical care team at UCLH during the pre- and post-RP PSA test blood sampling, and taken to the laboratory at Barts Cancer Institute, John Vane Science Centre, Charterhouse Square either by the CRF, a tissue bank acquisition officer (TBAO)(in the absence of the CRF) or the postdoc (anonymise samples transfer in the absence of CRF and TBAO) under the signed material transfer agreement (MTA), at room temperature. The samples will be transported in designated sample carrier using a taxi service. No public transport is to be used for moving samples between sites.

Conditions
Prostate Cancer
Being tested
CTC Blood Test
Medical subject headings
Prostatic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CTC Blood TestDiagnostic test

    We will draw blood to measure the level of Circulating Tumour Cells

Study groups in NCT05533515
Study groupRoleWhat they receive
RP Treatment cohortWe will use participants who have been deemed eligible for radical prostatectomy based on the current European Urology Association classification system, and who have been scheduled for surgery to completely remove the cancer in the prostate gland.
Receives: Diagnostic Test: CTC Blood Test

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Post-RP treatment failure during the first 4.5 years of follow up from start of recruitment.

    Post-RP treatment failure is defined as a PSA ≥ 0.2mg/ml at the routine PSA test 3 months after RP (commonly called 'failure to nadir') and remaining at this level or further increase afterwards without further treatment, or imaging detected appearance of cancer lesions.

    Cancer lesions detected by imaging without a PSA rise might include neuroendocrine PCa and lesions detected by PSAM-PET. This combined post-RP treatment failure primary endpoint will maximally capture all the clinically significant cancer appearance events.

    Measured: 4.5 years from the start of recruitment

Secondary outcomes (6)
  1. BCR during the first 4.5 years of follow up

    BCR during the first 4.5 years of follow up: PSA ≥ 0.2ng/ml at any time post-RP and remaining at this level or further increase afterwards without further treatment.

    Measured: 4.5 years

  2. Metastasis free survival (4.5yrs)

    Metastasis (any location)-free survival during the first 4.5 years of follow up. Only 5% of subjects with distant metastasis event (based on traditional imaging technologies) within this time frame (4-6).

    Measured: 4.5 years

  3. Metastasis free survival (10yrs)

    Metastasis (any location)-free survival at 10 years follow up. to confirm that metastatic event rates have increased among the positives, i.e. a declining rate of "false positives".

    Measured: 10 years

  4. Deaths (4.5yrs)

    Deaths from any cause during the first 4.5 years of follow up

    Measured: 4.5 years

  5. 10 year survival

    Overall survival at 10 years of follow up.

    Measured: 10 years

  6. Prostate cancer deaths (4.5yrs)

    Prostate cancer specific deaths during the first 4.5 years of follow up. Expected to be 2% or less based on previous studies in the post RP context.

    Measured: 4.5 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Sep 2022
  2. Study start8 Feb 2022
  3. Primary completion5 Mar 2024
  4. Study completion5 Mar 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
330 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05533515
Sponsor's protocol ID
19/LO/0994
Other IDs
140998
Acronym
C-ProMeta-1
Status last verified
Aug 2025
First submitted
5 Sep 2022
Last updated
19 Aug 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: We will share the IPD after publication

Questions about this trial

What is this clinical trial studying?

An observational study of Prostate Cancer, run by Queen Mary University of London at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 19 Aug 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Post-RP treatment failure during the first 4.5 years of follow up from start of recruitment. (time frame: 4.5 years from the start of recruitment). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Aug 2025.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in
C-ProMeta-1 Clinical Trial NCT05533515 | AzTrials