NCT00878215

Brief Summary

Image-guided surgery is a new technology, which is used to create 3-D pictures that generate a map of the liver. This map will allow surgeons to know the exact anatomical location of their instruments, including instances when direct visualization is not possible. This study is designed to determine the safety and feasibility of using image-guided techniques for treatment of liver tumors. The overall goal of this study is to use image-guided surgery for the improvement of the surgeon's ability to remove liver tumors.

Trial Health

57
Monitor

Trial Health Score

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

Enrollment
40

participants targeted

Target at P25-P50 for phase_2

Timeline
Completed

Started Oct 2002

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
terminated

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

October 24, 2002

Completed
6.5 years until next milestone

First Submitted

Initial submission to the registry

April 7, 2009

Completed
1 day until next milestone

First Posted

Study publicly available on registry

April 8, 2009

Completed
2.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 25, 2011

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 25, 2011

Completed
6.7 years until next milestone

Results Posted

Study results publicly available

February 13, 2018

Completed
Last Updated

February 13, 2018

Status Verified

January 1, 2018

Enrollment Period

8.6 years

First QC Date

April 7, 2009

Results QC Date

October 7, 2015

Last Update Submit

January 16, 2018

Conditions

Keywords

Image Guided Liver Surgery

Outcome Measures

Primary Outcomes (4)

  • Number of Participants Who Have a Successful Intraoperative Registrations (Phase 1 Portion of Study)

    * 10 successful intraoperative registrations with no more than 30% failure rate over all the cases will be considered a successful endpoint * A successful registration is defined as one which yields an RMS surface residual of ≤ 10 mm and is determined to be success after qualitative evaluation.

    Completion of surgery

  • Accuracy With Which Image-guided Surgery (IGS) Can be Used to Implant a Ceramic Bead Inside a Tumor as Measured by Successful Deliveries of the Bead to Within 8mm of the Pre-operatively Planned Target Point (Phase 2 Portion of Study)

    * Calculation of bead delivery accuracy using the IGS system involves the acquisition of images of the resected specimen and then the co-registration of the post-resection images to the pre-operative image set. Given that the target location is marked in the pre-operative image set and the registration calculation allows an overlay of the two image sets a Euclidean distance error can be calculated between the true bead location and the pre-operatively determined target. Given that the error involved in computing the registration between the two image sets is included within the bead delivery target error calculation it is imperative that the impact of registration error is minimized. * Numbers represented are the distance between the planned target site and the true bead location

    Completion of surgery

  • Target Accuracy of an Ablation Probe Using Image-guided Surgery Technology as Measured by the Number of Participants Who Had Ablation Burns Within a 5mm Radius of the Tumor Centroid (Phase 3 Portion of Study)

    -A measurement of the ablation probe placement via the burn zone will be performed by pathology via specimen sectioning.

    Completion of surgery

  • The Number of Participants Who Have Complete Ablation According to Early Post-ablative Imaging Studies as Well as no Recurrence of the Tumor Within 6 Months (Phase 4 Portion of the Study)

    -A successful endpoint will be a 90% success rate of complete ablation according to early post-ablative imaging studies as well as no recurrence of the tumor within 6 months.

    6 months post-ablation

Study Arms (4)

Phase 1:Localize Anatomical Points on Liver Surface

EXPERIMENTAL

-The surgeon will use image-guided surgery equipment to create the mapping with 3-D pictures of the participants liver. Laser range scanning will also be used to take 3-D pictures of the liver surface. The participant will then have planned standard surgery.

Device: Explorer Liver Image Guided SystemDevice: Explorer Liver Passive TrackingProcedure: Liver surgery

Phase 2: Ceramic bead

EXPERIMENTAL

-The surgeon will use image-guided surgery to create the mapping with 3-D pictures of the liver. During the surgery, a ceramic bead will be placed in a pre-operatively determined target location within the tumor using image-guided surgery. Standard surgical procedures will then be used to remove the tumors. Magnetic resonance (MR) images of the resected liver will confirm targeting accuracy.

Device: Explorer Liver Image Guided SystemDevice: Explorer Liver Passive TrackingProcedure: Liver surgery

Phase 3: Ablative therapy

EXPERIMENTAL

-The surgeon will use image-guided surgery to create the mapping with 3-D pictures of the liver. The liver tumors will be ablated using image-guided surgery. Standard surgical procedures will then be used to remove the portion of the liver that has the ablated tumors. The accuracy of the ablation will be confirmed via pathology sectioning.

Device: Explorer Liver Image Guided SystemDevice: Explorer Liver Passive TrackingProcedure: Liver surgeryProcedure: Liver abalation

Phase 4: Ablative therapy (not liver resection candidates)

EXPERIMENTAL

-This phase is for patients who otherwise do not qualify to have a portion of their liver to be surgically removed. The surgeon will use image-guidance to create the mapping with 3-D pictures of the liver. The tumors will be ablated using image-guided therapy.

Device: Explorer Liver Image Guided SystemDevice: Explorer Liver Passive TrackingProcedure: Liver abalation

Interventions

Phase 1:Localize Anatomical Points on Liver SurfacePhase 2: Ceramic beadPhase 3: Ablative therapyPhase 4: Ablative therapy (not liver resection candidates)
Phase 1:Localize Anatomical Points on Liver SurfacePhase 2: Ceramic beadPhase 3: Ablative therapyPhase 4: Ablative therapy (not liver resection candidates)
Liver surgeryPROCEDURE

-Standard of care

Phase 1:Localize Anatomical Points on Liver SurfacePhase 2: Ceramic beadPhase 3: Ablative therapy

-Standard of care

Phase 3: Ablative therapyPhase 4: Ablative therapy (not liver resection candidates)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Written informed consent must be obtained.
  • Patient must be 18 years or older.
  • Are male or non-pregnant, non-lactating females. Liver resection or ablation could be harmful to an unborn child therefore, is not recommended during pregnancy. After informed consent is obtained, women of childbearing potential will be required to have a blood or urine pregnancy test. All consented patients of childbearing potential will be advised to use adequate birth control (oral, implanted, or barrier methods) along with their sexual partners while being considered for liver tumor resection or ablation and at least up to a month following surgery.
  • Patients enrolled in Phase I must be candidates for surgical liver resection per a treating surgeon's discretion. Patients enrolled in Phase 2-3 must be candidates for surgical liver resection of liver mass. Patients enrolled in Phase 4 must be candidates for surgical ablation, but not candidates for surgical resection.
  • Patients are scheduled clinically for use of the Pathfinder Explorer Liver Image Guided System which is indicated for open liver surgical procedures where image-guidance may be appropriate and where the patient can tolerate long apneic periods under general anesthesia.

You may not qualify if:

  • Any condition which, in the judgment of the investigator, might increase the risk to the subject or decrease the chance of obtaining satisfactory data to achieve the objectives of the study.
  • Mental condition rendering the subject or his/her legal representative unable to understand informed consent to the nature, scope, and possible consequences of the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Washington University School of Medicine

St Louis, Missouri, 63110, United States

Location

Related Publications (12)

  • Rosen CB. Management of Hepatic Metastases. Cancer Control. 1998 May;5(3 Suppl 1):30-31. doi: 10.1177/107327489800503S11. No abstract available.

    PMID: 10762479BACKGROUND
  • Sardi A, Akbarov A, Conaway G. Management of primary and metastatic tumors to the liver. Oncology (Williston Park). 1996 Jun;10(6):911-25; discussion 926, 929-30.

    PMID: 8823803BACKGROUND
  • Dick EA, Taylor-Robinson SD, Thomas HC, Gedroyc WM. Ablative therapy for liver tumours. Gut. 2002 May;50(5):733-9. doi: 10.1136/gut.50.5.733.

    PMID: 11950826BACKGROUND
  • Parikh AA, Curley SA, Fornage BD, Ellis LM. Radiofrequency ablation of hepatic metastases. Semin Oncol. 2002 Apr;29(2):168-82. doi: 10.1053/sonc.2002.31673.

    PMID: 11951215BACKGROUND
  • Arun KS, Huang TS, Blostein SD. Least-squares fitting of two 3-d point sets. IEEE Trans Pattern Anal Mach Intell. 1987 May;9(5):698-700. doi: 10.1109/tpami.1987.4767965.

    PMID: 21869429BACKGROUND
  • Horn BKP.closed-form solution of absolute orientation using unit quaternions 4:629-642,1987

    BACKGROUND
  • Besl PM,McKay ND.A method for registraion of 3-D shapes.IEEE Transaactions on Pattern Analysis and Machine Intelligence 14:239-256,1992

    BACKGROUND
  • Cash DM,Siha Tk,Chapman,WC.Fast, accurate surface acquistion using a laser range scanner for image-guided surgical system.SPIE Medical Imaging,2002

    BACKGROUND
  • Stefansic JD, Bass WA, Hartmann SL, Beasley RA, Sinha TK, Cash DM, Herline AJ, Galloway RL Jr. Design and implementation of a PC-based image-guided surgical system. Comput Methods Programs Biomed. 2002 Nov;69(3):211-24. doi: 10.1016/s0169-2607(01)00192-4.

    PMID: 12204449BACKGROUND
  • Herline AJ, Stefansic JD, Debelak JP, Hartmann SL, Pinson CW, Galloway RL, Chapman WC. Image-guided surgery: preliminary feasibility studies of frameless stereotactic liver surgery. Arch Surg. 1999 Jun;134(6):644-9; discussion 649-50. doi: 10.1001/archsurg.134.6.644.

    PMID: 10367875BACKGROUND
  • Herline AJ, Herring JL, Stefansic JD, Chapman WC, Galloway RL Jr, Dawant BM. Surface registration for use in interactive, image-guided liver surgery. Comput Aided Surg. 2000;5(1):11-7. doi: 10.1002/(SICI)1097-0150(2000)5:13.0.CO;2-G.

    PMID: 10767091BACKGROUND
  • Pan S,Dawant BM.Automatic 3-D segmentation of the liver from abdominal CT images: a level-set approach. Proceedings of SPIE 4322:128-138,2001.

    BACKGROUND

Related Links

MeSH Terms

Conditions

Liver Neoplasms

Condition Hierarchy (Ancestors)

Digestive System NeoplasmsNeoplasms by SiteNeoplasmsDigestive System DiseasesLiver Diseases

Results Point of Contact

Title
William C. Chapman, M.D.
Organization
Washington University School of Medicine

Study Officials

  • William C Chapman, MD

    Washington University School of Medicine

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 2
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 7, 2009

First Posted

April 8, 2009

Study Start

October 24, 2002

Primary Completion

May 25, 2011

Study Completion

May 25, 2011

Last Updated

February 13, 2018

Results First Posted

February 13, 2018

Record last verified: 2018-01

Data Sharing

IPD Sharing
Will not share

Locations