NCT02080052

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

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
5

participants targeted

Target at below P25 for not_applicable prostate-cancer

Timeline
Completed

Started Jul 2013

Geographic Reach
1 country

1 active site

Status
completed

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

Completed
7 months until next milestone

First Submitted

Initial submission to the registry

February 6, 2014

Completed
28 days until next milestone

First Posted

Study publicly available on registry

March 6, 2014

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2016

Completed
Last Updated

January 14, 2019

Status Verified

January 1, 2019

Enrollment Period

2.4 years

First QC Date

February 6, 2014

Last Update Submit

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

EXPERIMENTAL
Device: Robot-assisted prostate biopsy

Interventions

Robot-assisted prostate biopsy

Eligibility Criteria

Age35 Years - 75 Years
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

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

Location

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: 24118992BACKGROUND
  • Kim 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: 23358940BACKGROUND
  • Stoianovici 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: 22901579BACKGROUND
  • Bonekamp 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: 21571651BACKGROUND
  • Badaan 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: 21360796BACKGROUND
  • Cunha 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: 20642386BACKGROUND
  • Stoianovici 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: 17763098BACKGROUND
  • Stoianovici 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: 21528106BACKGROUND
  • Muntener 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: 17169653BACKGROUND
  • Ball 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.

MeSH Terms

Conditions

Prostatic Neoplasms

Condition Hierarchy (Ancestors)

Genital Neoplasms, MaleUrogenital NeoplasmsNeoplasms by SiteNeoplasmsGenital Diseases, MaleGenital DiseasesUrogenital DiseasesProstatic DiseasesMale Urogenital Diseases

Study Officials

  • Mohamad E Allaf, MD

    Johns Hopkins University

    PRINCIPAL INVESTIGATOR
  • Mark W Ball, MD

    Johns Hopkins University

    STUDY DIRECTOR

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

Locations