Using advanced imaging to detect prostate cancer in men eligible for active surveillance

A Pilot Study of rhPSMA-PET MRI Imaging for the Detection of Clinically Actionable Prostate Cancer Among Men Who Are Otherwise Candidates for Active Surveillance

Early Phase 1 Interventional Northwestern University · NCT05852041

This study is testing a new type of imaging to see if it can better find serious prostate cancer in men who are being monitored for low-risk disease.

Quick facts

PhaseEarly Phase 1
Study typeInterventional
Enrollment40 (estimated)
Ages18 Years and up
SexMale
SponsorNorthwestern University Academic / other
Drugs / interventionschemotherapy
Locations1 site (Chicago, Illinois)
Trial IDNCT05852041 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the effectiveness of rhPSMA-7.3 PET-MRI imaging in identifying higher grade prostate cancer in men with low and favorable intermediate risk who are candidates for active surveillance. Participants will receive the radioactive drug rhPSMA-7.3 intravenously, followed by PET-MRI and multiparametric MRI scans of the prostate. The study aims to measure the detection rate of clinically significant disease and assess the safety of the imaging approach. Additionally, it will explore the correlation between imaging findings and genomic classifiers related to prostate cancer.

Who should consider this trial

Good fit: Ideal candidates are healthy men aged 18 and older with low-risk or favorable intermediate-risk prostate cancer and a Gleason Grade Group of 1 or 2.

Not a fit: Patients with high-risk prostate cancer or those who do not meet the inclusion criteria may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve the detection of aggressive prostate cancer in patients who are currently under active surveillance, leading to better treatment decisions.

How similar studies have performed: Other studies using advanced imaging techniques for prostate cancer detection have shown promising results, suggesting potential success for this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Healthy men (Eastern Cooperative Oncology Group \[ECOG\] 0-1), \>= 18 years old with at least 10 year life expectancy
* Histologically proven Gleason Grade Group 1 or 2 adenocarcinoma of the prostate
* Last prostate cancer containing biopsy performed within 3-15 months (mo.) prior to screening. Biopsy must have been \>= 10 core biopsy and informed by prior mpMRI
* Prostate cancer categorized as low risk or favorable risk by National Comprehensive Cancer Network (NCCN) criteria (low risk is defined as T1c-T2a, prostate-specific antigen \[PSA\] \< 10ng/ml, Gleason Grade Group 1 \[Gleason 3+3=6\] disease) and favorable intermediate risk as having no more than one of the following intermediate risk features, clinical T2b-T2c disease, PSA 10-20ng/ml, Gleason Grade Group 2 \[Gleason score 3+4=7\])
* Decipher genomic classifier score from prior biopsy \>= 0.45
* Institutional Review Board (IRB)-/Independent Ethics Committee (IEC)-approved written informed consent and privacy language as per national regulations must be obtained from the subject or legally authorized representative prior to any study-related procedures
* Concurrent diseases and malignancies are permitted
* Patients must have the ability to understand and the willingness to sign a written informed consent prior to registration on the study
* Willing to undergo prostate biopsy prior to non-surgical treatment of prostate cancer and within 90 days of PET-MRI imaging

Exclusion Criteria:

* Prior radiotherapy, surgery, chemotherapy, or hormonal therapy for prostate cancer
* NCCN very low risk category (T1c and Gleason Grade Group 1 \[Gleason score 3+3=6\], PSA \< 10 ng/mL, fewer than 3 prostate biopsy cores positive, =\< 50% cancer in any core, PSA density \< 0.15 ng/mL/g)
* Decipher score \< 0.45
* Prior bladder outlet procedure (i.e,. holmium laser enucleation of the prostate \[HoLEP\], transurethral resection of the prostate \[TURP\], Urolift, Rezum)
* Prohibited medications: use of 5 alpha reductase inhibitor or androgen deprivation therapy (i.e., leuprolide, relugolix) within 1 month of screening
* Contra-indication or relative contra-indication to MRI (i.e., pacemaker)
* History of hip replacement
* Subject has received investigational therapy within 28 days or 5 half-lives, whichever is longer, prior to screening

Where this trial is running

Chicago, Illinois

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Prostate AdenocarcinomaStage I Prostate Cancer AJCC v8Stage IIA Prostate Cancer AJCC v8Stage IIB Prostate Cancer AJCC v8
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.