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AzTrials

Prostate CancerPRIME-TZNCT07892378

Multiparametric Magnetic Resonance Imaging (mpMRI) Versus Prostate-Specific Membrane Antigen Positron Emission Tomography (PSMA-PET) for Detecting Clinically Significant Prostate Cancer in Transition Zone Lesions /PRostate Imaging With MRI and PET in the Transition Zone (PRIME-TZ)

An observational study of Prostate Cancer, run by Sanatorio Privado San Geronimo at 1 site in Argentina.

Not yet recruiting

Opening soon. The study is approved but enrolment has not started yet. Sites may already take enquiries.

Sites and contacts
Official record
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Trial summary

This prospective, single-center diagnostic accuracy study will compare mpMRI and PSMA-PET for the detection of clinically significant prostate cancer in patients with prostate imaging reporting and data System (PI-RADS) ≥4 lesions located in the transition zone of the prostate. Read more about this study

Who is it for?
Any age, men only
Conditions the study is for
Prostate Cancer
What is being tested?
Multiparametric Magnetic Resonance Imaging (mpMRI), 18F-PSMA-1007 PET and Prostate Biopsy
How many people
65 participants
Where
1 siteArgentina
Study dates
1 Nov 2026to 1 Mar 2029
Phase
Observational
Are there results?
Not yet: the study is under way

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 Any age
  • Men only
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: Adult men with suspected prostate cancer who are candidates for prostate biopsy and have a PI-RADS ≥4 lesion located in the transition zone of the prostate on mpMRI will be prospectively enrolled at a single center. Eligible patients will be consecutively recruited until the prespecified target enrollment of 65 participants is reached. All participants will undergo mpMRI and 18F-PSMA-1007 PET before image-guided prostate biopsy. Histopathological examination of targeted and systematic biopsy samples will serve as the reference standard for determining the presence of clinically significant prostate cancer. The target sample size was determined a priori based on the paired diagnostic study design, with allowance for potential losses, technical failures, exclusions, or incomplete data.

Who may be able to join

  • Men with suspected prostate cancer.
  • Candidates for prostate biopsy with a PI-RADS ≥4 lesion located in the - transition zone of the prostate identified on mpMRI.
  • Ability and willingness to provide written informed consent.

Who cannot join

  • Previous treatment for prostate cancer, including surgery, radiotherapy, or hormonal therapy.
  • Concomitant conditions that preclude or substantially interfere with imaging evaluation, including severe renal impairment, untreated severe claustrophobia, or mpMRI-incompatible metallic implants.
  • Contraindication to mpMRI or PSMA-PET, including severe renal impairment, MRI-incompatible implants, severe untreated claustrophobia, or known hypersensitivity to gadolinium-based contrast agents or the PSMA radiotracer.
  • Patients undergoing active surveillance without an immediate indication for prostate biopsy.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Miguel A Bergero, PhD contact

+54 9 342 4099960

angelbergero@hotmail.com

Argentina1 site
  • Sanatorio San Geronimo

    Santa Fe, Santa Fe Province, 3000

Other trials in Argentina

About this study

Official title: Comparison of Multiparametric Magnetic Resonance Imaging (mpMRI) Versus Prostate-Specific Membrane Antigen Positron Emission Tomography (PSMA-PET) for the Evaluation of Prostate Imaging Reporting and Data System (PI-RADS) ≥4 Lesions in the Prostate Transition Zone: A Prospective Clinical Study

This prospective, single-center diagnostic accuracy study will compare mpMRI and PSMA-PET for the detection of clinically significant prostate cancer in patients with prostate imaging reporting and data System (PI-RADS) ≥4 lesions located in the transition zone of the prostate.

All participants will undergo both mpMRI and 18F-PSMA-1007 PET before prostate biopsy. Imaging findings will be evaluated independently, and biopsy histopathology will serve as the reference standard for determining the presence of clinically significant prostate cancer.

The primary objective is to compare the diagnostic performance of mpMRI and PSMA-PET for detecting clinically significant prostate cancer. The study will also evaluate agreement between the two imaging methods and explore whether combining mpMRI and PSMA-PET may improve diagnostic accuracy and help reduce unnecessary prostate biopsies.

Conditions
Prostate Cancer
Being tested
Multiparametric Magnetic Resonance Imaging (mpMRI), 18F-PSMA-1007 PET, Prostate Biopsy
Keywords
Prostate Cancer, Clinically Significant Prostate Cancer, PSMA-PET, 18F-PSMA-1007, Multiparametric MRI, mpMRI, PI-RADS, Transition Zone, Prostate Biopsy, PRIMARY Score, Diagnostic Accuracy
Medical subject headings
Prostatic Neoplasms

What participants receive

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

  • Multiparametric Magnetic Resonance Imaging (mpMRI)Diagnostic test

    mpMRI of the prostate will be performed using a 1.5- to 3-Tesla MRI system without an endorectal coil. The protocol will include T2-weighted imaging, diffusion-weighted imaging (DWI), and dynamic contrast-enhanced MRI (DCE-MRI). Lesions located in the transition zone will be evaluated according to the PI-RADS classification. MRI images will be interpreted independently and blinded to the PSMA-PET findings.

  • 18F-PSMA-1007 PETDiagnostic test

    Participants will undergo PSMA-PET using 18F-PSMA-1007 administered at a dose of 2 MBq/kg. PET images will be acquired approximately 60 minutes after tracer injection. Intraprostatic lesions will be evaluated using the PRIMARY Score according to the PROMISE V2 framework, based on the pattern and intensity of PSMA uptake relative to reference organs. PRIMARY Scores 1-2 will be considered negative and scores 3-5 positive. Maximum standardized uptake value (SUVmax) will also be recorded for transition zone lesions. PSMA-PET images will be interpreted independently and blinded to the mpMRI findings.

  • Prostate BiopsyProcedure or surgery

    Participants will undergo image-guided prostate biopsy. Targeted samples from suspicious lesions and systematic biopsy samples will be obtained. Histopathological examination of biopsy specimens will serve as the reference standard for determining the presence of clinically significant prostate cancer.

Study groups in NCT07892378
Study groupRoleWhat they receive
Patients With PI-RADS ≥4 Transition Zone LesionsMen with suspected prostate cancer and a PI-RADS ≥4 lesion located in the transition zone of the prostate on mpMRI. All participants will undergo Fluorine-18 Prostate-Specific Membrane Antigen-1007 Positron Emission Tomography (18F-PSMA-1007 PET) in addition to mpMRI before prostate biopsy. Imaging findings will be evaluated independently. All participants will subsequently undergo image-guided prostate biopsy, including targeted and systematic sampling, with histopathology serving as the reference standard for the detection of clinically significant prostate cancer.
Receives: Diagnostic Test: Multiparametric Magnetic Resonance Imaging (mpMRI); Diagnostic Test: 18F-PSMA-1007 PET; Procedure: Prostate Biopsy

What is being measured

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

  1. Diagnostic Accuracy of mpMRI and 18F-PSMA-1007 PET for Clinically Significant Prostate Cancer

    Diagnostic performance of mpMRI and 18F-PSMA-1007 PET for the detection of clinically significant prostate cancer in PI-RADS ≥4 transition zone lesions will be assessed using prostate biopsy histopathology as the reference standard. Clinically significant prostate cancer will be defined as Gleason score ≥7. Sensitivity, specificity, and area under the receiver operating characteristic curve (AUC) will be calculated for each imaging modality and compared between modalities.

    Measured: From completion of diagnostic imaging to availability of prostate biopsy histopathology results, up to 30 days.

Secondary outcomes (1)
  1. Agreement Between mpMRI and 18F-PSMA-1007 PET

    Agreement between mpMRI and 18F-PSMA-1007 PET for the identification of suspicious prostate lesions will be assessed using Cohen's kappa coefficient.

    Measured: From the first imaging examination to completion of both mpMRI and 18F-PSMA-1007 PET assessments, up to 14 days.

Timeline

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

  1. First posted23 Oct 2026
  2. Study start1 Nov 2026 (estimated)
  3. Primary completion1 Nov 2028 (estimated)
  4. Study completion1 Mar 2029 (estimated)

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
65 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07892378
Sponsor's protocol ID
2043
Acronym
PRIME-TZ
Status last verified
Sep 2026
First submitted
22 Sep 2026
Last updated
23 Oct 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No: Individual participant data (IPD) will not be publicly shared due to participant confidentiality and data protection considerations. Study results will be reported in aggregate form in scientific publications and presentations.

Publications

  • Oto A, Kayhan A, Jiang Y, Tretiakova M, Yang C, Antic T, Dahi F, Shalhav AL, Karczmar G, Stadler WM. Prostate cancer: differentiation of central gland cancer from benign prostatic hyperplasia by using diffusion-weighted and dynamic contrast-enhanced MR imaging. Radiology. 2010 Dec;257(3):715-23. doi: 10.1148/radiol.10100021. Epub 2010 Sep 15.

    PubMed 20843992
  • de Rooij M, Hamoen EH, Futterer JJ, Barentsz JO, Rovers MM. Accuracy of multiparametric MRI for prostate cancer detection: a meta-analysis. AJR Am J Roentgenol. 2014 Feb;202(2):343-51. doi: 10.2214/AJR.13.11046.

    PubMed 24450675
  • Chesnais AL, Niaf E, Bratan F, Mege-Lechevallier F, Roche S, Rabilloud M, Colombel M, Rouviere O. Differentiation of transitional zone prostate cancer from benign hyperplasia nodules: evaluation of discriminant criteria at multiparametric MRI. Clin Radiol. 2013 Jun;68(6):e323-30. doi: 10.1016/j.crad.2013.01.018. Epub 2013 Mar 23.

    PubMed 23528164
  • Hoeks CM, Hambrock T, Yakar D, Hulsbergen-van de Kaa CA, Feuth T, Witjes JA, Futterer JJ, Barentsz JO. Transition zone prostate cancer: detection and localization with 3-T multiparametric MR imaging. Radiology. 2013 Jan;266(1):207-17. doi: 10.1148/radiol.12120281. Epub 2012 Nov 9.

    PubMed 23143029
  • Satapathy S, Singh H, Kumar R, Mittal BR. Diagnostic Accuracy of 68Ga-PSMA PET/CT for Initial Detection in Patients With Suspected Prostate Cancer: A Systematic Review and Meta-Analysis. AJR Am J Roentgenol. 2021 Mar;216(3):599-607. doi: 10.2214/AJR.20.23912. Epub 2021 Jan 21.

    PubMed 32755196
  • Emmett L, Buteau J, Papa N, Moon D, Thompson J, Roberts MJ, Rasiah K, Pattison DA, Yaxley J, Thomas P, Hutton AC, Agrawal S, Amin A, Blazevski A, Chalasani V, Ho B, Nguyen A, Liu V, Lee J, Sheehan-Dare G, Kooner R, Coughlin G, Chan L, Cusick T, Namdarian B, Kapoor J, Alghazo O, Woo HH, Lawrentschuk N, Murphy D, Hofman MS, Stricker P. The Additive Diagnostic Value of Prostate-specific Membrane Antigen Positron Emission Tomography Computed Tomography to Multiparametric Magnetic Resonance Imaging Triage in the Diagnosis of Prostate Cancer (PRIMARY): A Prospective Multicentre Study. Eur Urol. 2021 Dec;80(6):682-689. doi: 10.1016/j.eururo.2021.08.002. Epub 2021 Aug 28.

    PubMed 34465492

Questions about this trial

What is this clinical trial studying?

An observational study of Prostate Cancer, run by Sanatorio Privado San Geronimo at 1 site in Argentina.

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 4 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: opening soon, as of the sponsor's last update on 23 Oct 2026. 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 Argentina. 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?

This study is still under way. Results are not available in the source record yet.

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

Contact Miguel A Bergero, PhD (+54 9 342 4099960, angelbergero@hotmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Diagnostic Accuracy of mpMRI and 18F-PSMA-1007 PET for Clinically Significant Prostate Cancer (time frame: From completion of diagnostic imaging to availability of prostate biopsy histopathology results, up to 30 days.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT07892378, which also lists 6 linked publications.

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 23 Oct 2026; AzTrials last refreshed its copy on 26 Oct 2026.

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