Robot-Assisted MRI-Guided Prostate Biopsy
3 other identifiers
interventional
5
1 country
1
Brief Summary
Prostate biopsies are commonly performed freehanded under transrectal ultrasound guidance (TRUS). Due to the manual approach and the limitations of the ultrasound imager, the procedure has high false-negative rates. This represents a daily problem for urologists managing the disease, creates uncertainty and emotional stress for patients, and initiates a cascade of repeat testing and biopsies which also burden the investigators healthcare system. The investigators believe that prostate biopsy can be improved by using a new biopsy paradigm. The investigators plan to perform MRI-guided prostate biopsies with robot-assistance for orienting a needle-guide through which the biopsy is taken. The combination of MRI and robotic precision is expected to improve prostate biopsy sensitivity compared to regular TRUS biopsies. The study is a Pilot clinical trial on 5 patients to primarily assess feasibility and safety. The needle-guide robot is an investigational device developed in their Urology Robotics Laboratory.
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 2013
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
Study Start
First participant enrolled
July 25, 2013
CompletedFirst Submitted
Initial submission to the registry
February 6, 2014
CompletedFirst Posted
Study publicly available on registry
March 6, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 1, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2016
CompletedJanuary 14, 2019
January 1, 2019
2.4 years
February 6, 2014
January 10, 2019
Conditions
Outcome Measures
Primary Outcomes (7)
Number of participants with adverse events
Three months
Logged unsuccessful attempts to target prostate
1 year
Time for device setup, image registration, MRI time, biopsy sampling
1 year
Score for operation of the device
Score assigned by the engineers on a 1 to 5 scale
1 year
Score for image deterioration
Score assigned by radiologist on image quality on a 1 to 5 scale
1 year
Quality of the obtained biopsy specimen
Score assigned by the pathologist on a 1-5 scale.
1 year
Overall grade of the device and procedure
Grade give by urologist, radiologist and anesthesiologist on a 1-5 scale.
1 year
Secondary Outcomes (5)
Distance from the collected to planned biopsy core center measured on DICOM
One year
Number of needle trajectory corrections needed for alignment of each biopsy core
1 year
Number of diagnosed prostate cancers
1 year
Number of positive/total cores for each patient
1 year
Correlation of pathology findings with cancer specific region (CSR)s on MRI
1 year
Study Arms (1)
Robot-assisted prostate biopsy
EXPERIMENTALInterventions
Eligibility Criteria
You may qualify if:
- men between the ages of 35 and 75,
- have a negative 12 core prostate biopsy, and
- must have one of the following "high risk" features:
- PSA \>= 5.0 ng/ml and Prostate Volume \<= 50cc,
- PSA density \>= 0.2ng/ml/cc,
- Percent Free PSA \<=10%,
- PSA velocity \> 0.5 ng/ml/year,
- High Grade Prostate Intraepithelial Neoplasia on previous biopsy, or Atypia on previous biopsy.
You may not qualify if:
- bleeding problems,
- metal implants precluding MRI scanning,
- previous rectal surgery, anal stenosis that precludes endorectal coil insertion,
- patients who cannot tolerate anesthesia or in whom anesthesia is considered high-risk, and
- patients who are unwilling or unable to sign informed consent.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
The Johns Hopkins Hospital
Baltimore, Maryland, 21287, United States
Related Publications (10)
Srimathveeravalli G, Kim C, Petrisor D, Ezell P, Coleman J, Hricak H, Solomon SB, Stoianovici D. MRI-safe robot for targeted transrectal prostate biopsy: animal experiments. BJU Int. 2014 Jun;113(6):977-85. doi: 10.1111/bju.12335. Epub 2013 Dec 2.
PMID: 24118992BACKGROUNDKim C, Chang D, Petrisor D, Chirikjian G, Han M, Stoianovici D. Ultrasound probe and needle-guide calibration for robotic ultrasound scanning and needle targeting. IEEE Trans Biomed Eng. 2013 Jun;60(6):1728-34. doi: 10.1109/TBME.2013.2241430. Epub 2013 Jan 21.
PMID: 23358940BACKGROUNDStoianovici D. Technology advances for prostate biopsy and needle therapies. J Urol. 2012 Oct;188(4):1074-5. doi: 10.1016/j.juro.2012.06.127. Epub 2012 Aug 15. No abstract available.
PMID: 22901579BACKGROUNDBonekamp D, Jacobs MA, El-Khouli R, Stoianovici D, Macura KJ. Advancements in MR imaging of the prostate: from diagnosis to interventions. Radiographics. 2011 May-Jun;31(3):677-703. doi: 10.1148/rg.313105139.
PMID: 21571651BACKGROUNDBadaan S, Petrisor D, Kim C, Mozer P, Mazilu D, Gruionu L, Patriciu A, Cleary K, Stoianovici D. Does needle rotation improve lesion targeting? Int J Med Robot. 2011 Jun;7(2):138-47. doi: 10.1002/rcs.381. Epub 2011 Mar 1.
PMID: 21360796BACKGROUNDCunha JA, Hsu IC, Pouliot J, Roach Iii M, Shinohara K, Kurhanewicz J, Reed G, Stoianovici D. Toward adaptive stereotactic robotic brachytherapy for prostate cancer: demonstration of an adaptive workflow incorporating inverse planning and an MR stealth robot. Minim Invasive Ther Allied Technol. 2010 Aug;19(4):189-202. doi: 10.3109/13645706.2010.497000.
PMID: 20642386BACKGROUNDStoianovici D, Song D, Petrisor D, Ursu D, Mazilu D, Muntener M, Schar M, Patriciu A. "MRI Stealth" robot for prostate interventions. Minim Invasive Ther Allied Technol. 2007;16(4):241-8. doi: 10.1080/13645700701520735.
PMID: 17763098BACKGROUNDStoianovici D, Patriciu A, Petrisor D, Mazilu D, Kavoussi L. A New Type of Motor: Pneumatic Step Motor. IEEE ASME Trans Mechatron. 2007 Feb 1;12(1):98-106. doi: 10.1109/TMECH.2006.886258.
PMID: 21528106BACKGROUNDMuntener M, Patriciu A, Petrisor D, Mazilu D, Bagga H, Kavoussi L, Cleary K, Stoianovici D. Magnetic resonance imaging compatible robotic system for fully automated brachytherapy seed placement. Urology. 2006 Dec;68(6):1313-7. doi: 10.1016/j.urology.2006.08.1089.
PMID: 17169653BACKGROUNDBall MW, Ross AE, Ghabili K, Kim C, Jun C, Petrisor D, Pan L, Epstein JI, Macura KJ, Stoianovici DS, Allaf ME. Safety and Feasibility of Direct Magnetic Resonance Imaging-guided Transperineal Prostate Biopsy Using a Novel Magnetic Resonance Imaging-safe Robotic Device. Urology. 2017 Nov;109:216-221. doi: 10.1016/j.urology.2017.07.010. Epub 2017 Jul 19.
PMID: 28735018RESULT
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Mohamad E Allaf, MD
Johns Hopkins University
- STUDY DIRECTOR
Mark W Ball, MD
Johns Hopkins University
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- DEVICE FEASIBILITY
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
February 6, 2014
First Posted
March 6, 2014
Study Start
July 25, 2013
Primary Completion
January 1, 2016
Study Completion
January 1, 2016
Last Updated
January 14, 2019
Record last verified: 2019-01