Detection of Clinically Significant Prostate Cancer Using Transperineal Targeted Biopsy Compared to Standard Transrectal Biopsy
Assessing the Detection of Clinically Significant Prostate Cancer Using Magnetic Resonance Imaging-Guided Transperineal Targeted Biopsy Compared to Standard Transrectal Biopsy Outcomes Study: The ASTROS Trial
1 other identifier
interventional
24
1 country
1
Brief Summary
Prostate biopsies are currently the gold standard for the diagnosis of prostate cancer. Many biopsies, however, are unnecessary or cannot detect significant prostate cancer (PCa). With multi-parametric magnetic resonance imaging (mpMRI) we now potentially have a way of increasing the detection of detecting clinically significant prostate cancer (csPCa) while decreasing the detection of non-significant PCa.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable prostate-cancer
Started Jul 2017
Shorter than P25 for not_applicable prostate-cancer
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 2, 2017
CompletedFirst Posted
Study publicly available on registry
February 6, 2017
CompletedStudy Start
First participant enrolled
July 25, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 12, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
April 12, 2018
CompletedResults Posted
Study results publicly available
May 9, 2019
CompletedJune 5, 2019
April 1, 2019
9 months
February 2, 2017
April 18, 2019
May 22, 2019
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Number of Participants With Clinically Significant Prostate Cancer
Number of subjects with positive clinically significant prostate cancer results
Within 2-4 wks after biopsy
Secondary Outcomes (2)
Overall Detection Rate of Prostate Cancer Between Arm A mpMRI+ and Arm B
Within 2-4 wks from biopsy
Comparison of UTI Incidence in Arm A mpMRI+ and Arm B
From the time of biopsy through 4 weeks post-biopsy
Study Arms (2)
MRI/ultrasound transperineal prostate biopsy
EXPERIMENTALIn arm A, all patients with positive mpMRI evidence of lesions suspicious for PCa, i.e. PI RADS ≥ 3 will be submitted to transperineal mpMRI-targeted prostate biopsy (arm A MRI+). The gland and the regions of interest will be contoured, and the prostate contour will be fused in real time with the TRUS image. Biopsies will be performed via a transperineal approach in the operating room. The patient will be placed in dorsal lithotomy position. mpMRI-targeted biopsies will be performed on regions of interest, and three to six cores will be obtained for biopsy from each lesion and is standard of care according to START criteria for targeted biopsy. In cases of negative mpMRI results i.e. PI RADS\<3, arm A patients will undergo TRUS-guided transrectal 12-core prostate biopsy (arm A MRI-) as described in arm B.
transrectal ultrasound-guided prostate biopsy
ACTIVE COMPARATORTRUS-guided transrectal prostate biopsy will be performed using a disposable 18-gauge biopsy gun with a specimen size of 18-22 mm (Bard Medical, Covington, GA, USA). The 12 cores will be obtained from 12 separate anatomical regions of the prostate which is standard practice in performing TRUS-guided transrectal prostate biopsy: left medial apex, left lateral apex, left medial midgland, left lateral midgland, left medial base, left lateral base, right medial apex, right lateral apex, right medial midgland, right lateral midgland, right medial base and right lateral base.
Interventions
3-6 targeted biopsy cores from each prostate region of interest
12 systematic biopsy cores
Eligibility Criteria
You may qualify if:
- Males aged 18-75 years old
- PSA \>1 ng/ml but \<15 ng/ml
- Negative DRE
- Signed informed consent
You may not qualify if:
- Previous prostate biopsy or prostate surgery
- Previous prostate mpMRI
- Contraindication to mpMRI: patients with pacemakers, defibrillators or other implanted electronic devices
- Patients in the Texas Department of Criminal Justice (prisoners)
- Patients with acute urinary symptoms including urinary retention and urinary tract infection
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
The University of Texas Medical Branch at Galveston
Galveston, Texas, 77555, United States
Related Publications (1)
Kosarek CD, Mahmoud AM, Eyzaguirre EJ, Shan Y, Walser EM, Horn GL, Williams SB. Initial series of magnetic resonance imaging (MRI)-fusion targeted prostate biopsy using the first transperineal targeted platform available in the USA. BJU Int. 2018 Nov;122(5):909-912. doi: 10.1111/bju.14206. Epub 2018 Apr 14.
PMID: 29569311DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Results Point of Contact
- Title
- Lori Simon
- Organization
- UTexasGalveston
Study Officials
- PRINCIPAL INVESTIGATOR
Stephen B Williams, MD
University of Texas
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- DIAGNOSTIC
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 2, 2017
First Posted
February 6, 2017
Study Start
July 25, 2017
Primary Completion
April 12, 2018
Study Completion
April 12, 2018
Last Updated
June 5, 2019
Results First Posted
May 9, 2019
Record last verified: 2019-04
Data Sharing
- IPD Sharing
- Will not share