PRostate Evaluation for Clinically Important Disease: MRI vs Standard Evaluation Procedures (PRECISE)

February 20, 2018 updated by: Canadian Urology Research Consortium

A Phase III Multi-centre Open-label Randomized Controlled Trial of Multi-parametric Magnetic Resonance Imaging (MRI)-Targeted Biopsy Compared to Systematic Trans-rectal Ultrasound (TRUS) Guided Biopsy

The aim of this study is to assess the efficacy of MRI-targeted biopsy compared to standard of care systematic TRUS guided biopsy in the detection of clinically significant and clinically insignificant prostate cancer in men without prior biopsy. The implication of this trial is that MRI-targeted biopsy could replace systematic TRUS guided biopsy as the standard of care in the diagnosis of prostate cancer.

Study Overview

Detailed Description

The standard pathway for prostate cancer diagnosis is trans-rectal ultrasound guided (TRUS) biopsy of the prostate following an elevated PSA. TRUS guidance is performed primarily for anatomic guidance as the ultrasound poorly discriminates between cancerous and non-cancerous tissue. TRUS guided prostate biopsies are concentrated in areas of the peripheral zone, thought to harbor the majority of cancer.

An alternative pathway for prostate cancer diagnosis in men with elevated PSA is to perform multi-parametric magnetic resonance imaging (MPMRI) to localize cancer. This information is used to direct a subsequent biopsy, known as an MRI-targeted biopsy. MRI-targeted biopsy has been shown in preliminary studies to detect a similar or greater amount of clinically significant cancer than systematic TRUS guided biopsy and has several other potential advantages including: the ability to differentiate between clinically significant and insignificant cancer, reducing unnecessary biopsy and fewer numbers of biopsy cores, reducing biopsy-related side-effects.

A 'clinically insignificant cancer' is cancer that is unlikely to progress or to affect an individual's life expectancy and therefore does not warrant treatment. However when diagnosed with low grade cancer that is likely to be insignificant, a large proportion of subjects request treatment in case a more significant cancer is present. A challenge in this area is that subjects are typically not aware that their cancer is clinically insignificant, and often view the early diagnosis and aggressive treatment they have been subjected to as life-saving.

A prostate cancer detection procedure that differentiates clinically significant cancer from clinically insignificant cancer is therefore a major unmet need.

The potential implications of this trial include:

  • A redefinition of the prostate cancer diagnostic pathway;
  • A reduction in the number of subjects undergoing prostate biopsy;
  • A reduction in the number of biopsy cores taken per subject;
  • A reduction in biopsy-related adverse events including sepsis and pain;
  • A reduction in the over-diagnosis of clinically insignificant prostate cancer;
  • A reduction in the economic burden of diagnosing and treating prostate cancer.

Study Type

Interventional

Enrollment (Anticipated)

450

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

    • British Columbia
      • Vancouver, British Columbia, Canada, V5Z1M9
        • Not yet recruiting
        • Vancouver Prostate Centre
        • Principal Investigator:
          • Peter Black, MD
        • Contact:
    • Ontario
      • London, Ontario, Canada, N6A5W9
        • Recruiting
        • London Health Sciences Centre-Victoria Hospital
        • Principal Investigator:
          • Joseph Chin, MD
        • Contact:
      • Toronto, Ontario, Canada, M4N 3M5
      • Toronto, Ontario, Canada, M5G1X6
        • Recruiting
        • Princess Margaret Cancer Centre
        • Contact:
    • Quebec
      • Montreal, Quebec, Canada, H3T1E2
        • Recruiting
        • CIUSSS du Centre-Ouest-de-I'ile-de-Montreal-Jewish General Hospital
        • Principal Investigator:
          • Franck Bladou, MD
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

In order to be eligible, all inclusion criteria must be met:

  1. Men at least 18 years of age referred with clinical suspicion of prostate cancer who have been advised to have a prostate biopsy;
  2. ≥5% chance of high-grade prostate cancer as calculated using individualized risk assessment of prostate cancer calculator, PCPTRC 2.0, found at http://deb.uthscsa.edu/URORiskCalc/Pages/calcs.jsp;
  3. Serum PSA ≤ 20ng/ml within 3 months of randomization
  4. Fit to undergo all procedures listed in protocol;
  5. Able to provide written informed consent.

Exclusion Criteria:

  1. Prior prostate biopsy
  2. Prior treatment for prostate cancer
  3. Contraindication to MRI (e.g. claustrophobia, pacemaker, estimated GFR ≤ 50mls/min)
  4. Contraindication to prostate biopsy
  5. Men in whom artifact would reduce the quality of the MRI, i.e. previous hip replacement surgery, metallic hip replacement or extensive pelvic orthopaedic metal work
  6. Unfit to undergo any procedures listed in protocol.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: MRI
Men in Arm A will undergo a MRI followed by either a targeted biopsy of suspicious areas or will be followed for two years if there is no suspicious areas identified by MRI. The unbiopsied men will have a repeat MRI at 2 years.
Men will undergo a MRI followed by either a targeted biopsy of suspicious areas or will be followed for two years if there is no suspicious areas identified by MRI.
Men will undergo a MRI followed by either a targeted biopsy of suspicious areas or will be followed for two years if there is no suspicious areas identified by MRI.
Active Comparator: Standard of Care
Men in Arm B will undergo a 12-core systematic TRUS guided biopsy. All men in the study will be followed for two years or until they have had radical treatment (whichever comes first).
Men in Arm B will undergo a 12-core systematic TRUS guided biopsy. All men in the study will be followed for two years or until they have had radical treatment (whichever comes first).

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
MRI-The proportion of men with clinically significant cancer (Gleason > 7)
Time Frame: 1 year
To determine whether the proportion of men with clinically significant cancer (Gleason > 7) detected by MRI-targeted biopsy is no less than systematic TRUS guided biopsy.
1 year

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Biopsy-The proportion of men with clinically significant cancer (Gleason ≥7)
Time Frame: 1 year
1. The proportion of men with clinically significant cancer (Gleason ≥7) detected by MRI-targeted biopsy is greater than systematic TRUS guided biopsy.
1 year
Proportion of men in each arm with clinically insignificant cancer
Time Frame: 1 year
1 year
Proportion of men in each arm with Gleason >4+3 detected.
Time Frame: 1 year
1 year
Proportion of men in MRI arm who avoid biopsy.
Time Frame: 1 year
1 year
Proportion of men in the MRI arm whom the PI-RADS score for suspicion of clinically significant cancer was 3, 4 or 5 but no clinically significant cancer was detected.
Time Frame: 1 year
1 year
Proportion of men in each arm who go on to definitive local treatment (e.g. radical prostatectomy, radiotherapy, brachytherapy) or systemic treatment (e.g. hormone therapy, chemotherapy).
Time Frame: 1 year
1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

November 1, 2016

Primary Completion (Anticipated)

November 1, 2019

Study Completion (Anticipated)

November 1, 2019

Study Registration Dates

First Submitted

September 28, 2016

First Submitted That Met QC Criteria

October 14, 2016

First Posted (Estimate)

October 18, 2016

Study Record Updates

Last Update Posted (Actual)

February 22, 2018

Last Update Submitted That Met QC Criteria

February 20, 2018

Last Verified

January 1, 2018

More Information

Terms related to this study

Other Study ID Numbers

  • PRECISE Trial

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Yes

IPD Plan Description

Plan to share publication

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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