Accuracy of mpMRI and MRI-targeted, Ultrasound-navigated Prostate Fusion Biopsy in Detection of Prostate Cancer

Sponsor
Kantonsspital Winterthur KSW (Other)
Overall Status
Completed
CT.gov ID
NCT03615131
Collaborator
(none)
157
1
18.9
8.3

Study Details

Study Description

Brief Summary

The investigators examined whether a high PI-RADS v2 score correlates with the presence of prostate cancer. In addition, the investigator inspected whether the lesion size as determined by mpMRI correlates with the presence of prostate cancer. Furthermore, the investigators study aimed to determine the sensitivity and specificity of mpMRI with respect to prostate carcinoma detection.

Condition or Disease Intervention/Treatment Phase
  • Diagnostic Test: MRI-TRUS fusion prostate biopsy

Detailed Description

Purpose: In recent years, multiparametric Magnet Resonance Imaging (mpMRI) has been established as a diagnostic imaging technique of the prostate and its assessment standardized with the "prostate imaging - data and reporting system" (PI-RADS v2). The previously established Likert scale from 1 to 5 has been shown to reflect the increasing probability of a carcinoma. Suspicious MRI lesions can be biopsied in a targeted fashion using ultrasound navigation termed fusion biopsy. The investigators examined whether a high PI-RADS v2 score correlates with the presence of prostate cancer. In addition, the investigators inspected whether the lesion size as determined by mpMRI correlates with the presence of prostate cancer. Furthermore, the investigators study aimed to determine the sensitivity and specificity of mpMRI with respect to prostate carcinoma detection.

Materials and Methods: This prospective study includes 228 consecutive patients, which underwent a perineal MRI-TRUS-fused prostate biopsy (BiopSee®, MedCom Company) during the period of September 2015 to March 2017 at the cantonal hospital Winterthur due to a suspicious PSA value, a suspicious digital rectal examination or a known prostate cancer under active surveillance. 71 patients were excluded due to lack of PI-RADS v2 diagnosis and / or MRI performed at a different center. Targeted biopsies were performed specifically in the indicated MRI lesions and standardized over the rest of the prostate (system biopsy).

Study Design

Study Type:
Observational
Actual Enrollment :
157 participants
Observational Model:
Cohort
Time Perspective:
Prospective
Official Title:
Accuracy of Multi-parametric Prostate MRI and MRI-targeted, Ultrasound-navigated Prostate Fusion Biopsy in the Detection of Prostate Cancer:
Actual Study Start Date :
Sep 1, 2015
Actual Primary Completion Date :
Mar 30, 2017
Actual Study Completion Date :
Mar 30, 2017

Arms and Interventions

Arm Intervention/Treatment
MRI-TRUS fusion prostate biopsy

Single Arm Study, MRI and Prostate-Biopsy on same patient, individual patient acts as own control for intervention

Diagnostic Test: MRI-TRUS fusion prostate biopsy
First an advanced MRI prostate image is obtained, annotated and recorded by the Radiology of the Kantonsspital Winterthur. Next, using special fusion technology, the recorded MRI image is fused with a live transrectal ultrasound by the Urologist who performs a MRI/TRUS fusion biopsy.
Other Names:
  • MRI prior to biopsy
  • Outcome Measures

    Primary Outcome Measures

    1. Gleason score (minimum 2 to maximum of 10) [01.09.2015 - 30.03.2017]

      Histological grade of the glandular structures of prostate cancer tissue or the difference in appearance compared with a normal structure. Pattern 1 - corresponds to a well differentiated carcinoma. Pattern 2 - corresponds to a moderately differentiated carcinoma. Pattern 3 - invade the surrounding tissue or having an infiltrative pattern; corresponds to a moderately differentiated carcinoma. Pattern 4 - corresponds to a poorly differentiated carcinoma. Pattern 5 - corresponds to an anaplastic carcinoma. The pathologist then sums the pattern-number of the primary and secondary grades to obtain the final Gleason score. Gleason scores range from 2 to 10, with 2 representing the most well-differentiated tumors and 10 the least-differentiated tumors.

    2. ISUP (International Society of Urological Pathology) Grading Group (Grade 1 to Grade 5) [01.09.2015 - 30.03.2017]

      New grading system for histological grade of the glandular structures of prostate cancer tissue or the difference in appearance compared with a normal structure Grade Group 1 (Gleason score ≤6) - Only individual discrete well-formed glands Grade Group 2 (Gleason score 3+4=7) - Predominantly well-formed glands with a lesser component of poorly-formed/fused/cribriform glands Grade Group 3 (Gleason score 4+3=7) - Predominantly poorly-formed/fused/cribriform glands with a lesser component of well-formed glands Grade Group 4 (Gleason score 8) Only poorly-formed/fused/cribriform glands or Predominantly well-formed glands with a lesser component lacking glands or Predominantly lacking glands with a lesser component of well-formed glands Grade Group 5 (Gleason scores 9-10) - Lacks gland formation (or with necrosis) with or without poorly-formed/fused/cribriform glands

    3. lesion volume (ml) [01.09.2015 - 30.03.2017]

      millilitre; size of suspected areas in prostate gland in MRI

    4. PI-RADS v2 (Prostate Imaging Reporting and Data System Version 2) score (1 - 5) [01.09.2015 - 30.03.2017]

      Radiological grading system of prostate lesions in mpMRI The PI-RADS v2 system is designed to standardize image acquisition and reporting, and to be used by medical professionals in the initial evaluation of patients to assess the risk of clinically significant prostate cancer that may require biopsy and treatment. The scale is based on a score "Yes" or "No" for Dynamic Contrast-Enhanced (DCE) parameter, and from 1 to 5 for T2-weighted (T2W) and Diffusion-weighted imaging (DWI). The score is given for each lesion, with 1 being most probably benign and 5 being highly suspicious of malignancy: PI-RADS 1: very low (clinically significant cancer is highly unlikely to be present) PI-RADS 2: low (clinically significant cancer is unlikely to be present) PI-RADS 3: intermediate (clinically significant cancer is equivocal) PI-RADS 4: high (clinically significant cancer is likely to be present) PI-RADS 5: very high (clinically significant cancer is highly likely to be present)

    5. Prostate specific antigen (PSA) [01.09.2015 - 30.03.2017]

      ng per ml; enzyme secreted by the prostate gland

    6. Digital rectal examination (DRE) [01.09.2015 - 30.03.2017]

      consistence of prostate gland

    7. Prostate specific antigen - density [01.09.2015 - 30.03.2017]

      ng per ml per ml; The relationship of the prostate specific antigen level to the size and weight (volume) of the prostate.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years and Older
    Sexes Eligible for Study:
    Male
    Accepts Healthy Volunteers:
    Yes
    Inclusion Criteria:
    • Patients with mRI-TRUS Fusion prostate biopsy

    • age > 18y

    • elevated PSA

    • suspicious DRE (digital rectal examination)

    • patients with prostate cancer under active surveillance

    Exclusion Criteria:
    • age < 18y

    • treated prostate cancer (Radiotherapy, antiandrogens therapy, brachytherapy, HIFU).

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Klinik für Urologie Kantonsspital Winterthur Winterthur Zürich Switzerland 8401

    Sponsors and Collaborators

    • Kantonsspital Winterthur KSW

    Investigators

    None specified.

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    Responsible Party:
    Kantonsspital Winterthur KSW
    ClinicalTrials.gov Identifier:
    NCT03615131
    Other Study ID Numbers:
    • 2016-01098
    First Posted:
    Aug 3, 2018
    Last Update Posted:
    Aug 22, 2018
    Last Verified:
    Aug 1, 2018
    Individual Participant Data (IPD) Sharing Statement:
    No
    Plan to Share IPD:
    No
    Studies a U.S. FDA-regulated Drug Product:
    No
    Studies a U.S. FDA-regulated Device Product:
    No
    Keywords provided by Kantonsspital Winterthur KSW
    Additional relevant MeSH terms:

    Study Results

    No Results Posted as of Aug 22, 2018