A Phase 3 Study Comparing High Resolution Micro-ultrasound and Multiparametric MRI for Prostate Cancer Screening in Men Aged 50 to 70
Led by University of Alberta · Updated on 2026-06-04
1284
Participants Needed
9
Research Sites
N/A
Total Duration
AI-Summary
What this Trial Is About
Researchers are evaluating whether a new imaging method called high resolution micro-ultrasound microUS, approved by the FDA and Health Canada, is as effective as the current standard imaging technique, multiparametric MRI, for screening the prostate gland. This phase 3 clinical trial aims to identify which imaging approach better guides the decision to proceed with a prostate biopsy in men aged 50 to 70 who are at risk for prostate cancer.
Participants will be randomly assigned to one of two groups to receive either the standard prostate multiparametric MRI or the experimental microUS imaging. These imaging procedures will be compared to assess their ability to detect prostate abnormalities. The study is conducted at multiple centers internationally, and both imaging methods are non-invasive diagnostic devices.
Men enrolled in the study will be followed for one year after their imaging test to monitor the detection of clinically significant prostate cancer. Researchers will collect data on imaging results and biopsy decisions to evaluate each methods effectiveness. Participants will undergo standard clinical assessments, and study visits will be scheduled to track outcomes during the follow-up period.
CONDITIONS
Brief Title
Screening for Prostate Cancer Using High Resolution Micro-ultrasound Versus Multiparametric Magnetic Resonance Imaging.
Research Team
S
Stacey Broomfield, PhD
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This table compares participation in this trial with other options available for this condition. The information is drawn from published research and the trial’s study details and is provided for educational purposes only.
Factors
ExactVu micro‑ultrasound (investigational)
Multiparametric MRI (standard pathway)
What it is
A high‑resolution 29‑MHz micro‑ultrasound imaging device (ExactVu) used to screen for prostate cancer in biopsy‑naïve men.
Established multiparametric MRI pathway using standard prostate imaging sequences.
Role in trial
Assigned diagnostic method under investigation in randomized comparison.
Assigned comparator representing current standard imaging approach.
Primary use
Screening to detect clinically significant prostate cancer directly during biopsy.
Widely used initial imaging to identify suspicious lesions before biopsy.
How it is performed
High‑frequency ultrasound probe used in real‑time during biopsy planning.
Multiparametric MRI scan acquired before biopsy interpretation by radiologist.
Evidence status
Non‑inferiority to mpMRI in detecting clinically significant prostate cancer suggested by OPTIMUM randomized trial and supporting prospective studies and meta‑analyses.
Well‑established high sensitivity and specificity for clinically significant prostate cancer detection.
Important limitations
Operator‑dependent technique with limited penetration in larger or anterior prostate regions and lacks whole‑gland functional assessment.
Requires costlier imaging, radiology expertise, and scheduling before biopsy.
Disclaimer: This comparison is created with the help of artificial intelligence(AI) and may contain errors or missing information. It is not medical advice and does not mean one option is better or safer than another. Clinical trials are still being studied, and joining a trial is your choice. Please consult your healthcare professional before making any decisions.
Who Can Participate
Age: 50Years - 70Years
MALE
Healthy Volunteers
Eligibility Criteria
You may qualify if you...
Male sex
Age between 50 and 70 years
PSA level between 3 and 20 and/or abnormal digital rectal exam
No prior prostate biopsy
You will not qualify if you...
Prior personal history of prostate cancer
Prior prostate imaging using micro-ultrasound or MRI
Contraindications to micro-ultrasound or MRI
Testosterone replacement therapy within the last 12 months
Androgen deprivation therapy within the last 12 months
Your Study Journey
Screening
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person)
Diagnostic Evaluation
Duration - 1 day
Participants undergo prostate cancer screening using either high resolution micro-ultrasound or multiparametric MRI.
1 visit (in-person)
Long-term Monitoring
Duration - 1 year
Participants are followed for 1 year after the imaging test to detect clinically significant prostate cancer.
Follow-up visits as scheduled
How is the study designed?
Study Type
INTERVENTIONAL
Masking
NONE
Allocation
RANDOMIZED
Model
PARALLEL
Primary Purpose
SCREENING
Number of Arms
2
Similar Trials
MRI Screening Study for Men 18 and Older at High Risk of Prostate Cancer
Study of PSMA PETMRI-Guided Prostate Targeted Biopsy Compared to Standard Biopsy in Men With PI-RADS 3 or Less and Previous Negative Biopsies
A Phase 3 Study Comparing High Resolution Micro-ultrasound and Multiparametric MRI for Prostate Cancer Screening in Men Aged 50 to 70
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Published Research Related To This Trial
Optimizing prostate biopsy decision making - (MUSIC-screen): A 1:1 randomized controlled trial comparing micro-ultrasound versus multiparametric magnetic resonance imaging for prostate cancer diagnosis.