In Vivo Confocal Endomicroscopy of the Brain

November 9, 2009 updated by: Carl Zeiss Surgical GmbH

The purpose of the study is to test the feasibility of obtaining interpretable in vivo endomicroscopy images which can be compared with traditional histopathology.

Hypothesis: That a rigid confocal endomicroscope can be used during neurosurgery to provide in vivo histology that enables differentiation of tumour tissue from normal adjacent brain tissue.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Confocal endomicroscopy is a medical imaging modality that allows real-time microscopy to be performed on living tissue in vivo. It is already in clinical use in the fields of gastroenterological endoscopy, laparoscopy, dermatology, gynecology and respiratory medicine. This study represents the first time that confocal endomicroscopy will be evaluated for intraoperative imaging in neurosurgery.

The procedure involves a small endoscope which is placed gently into contact with the brain, providing significant in vivo magnification on a scale similar to that obtained by the pathology laboratory microscope. The captured confocal images will be compared with corresponding histology (tissue that is being removed as part of the indicated neurosurgical procedure). The images will be visually compared among each other and with histology images to detect possible clinically relevant information.

Study Type

Interventional

Enrollment (Anticipated)

30

Phase

  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Arizona
      • Phoenix, Arizona, United States, 85013
        • Barrow Neurological Institute, St. Joseph's Hospital and Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • All patients with neurosurgical pathology requiring surgery in which tumor resection might be evaluated by using biopsy.

Exclusion Criteria:

  • Pregnant women
  • Inability to give informed consent
  • History of allergy to fluorescein
  • Patients on beta-blockers or ACE inhibitors

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: All patients
Device: Endomicroscope
Endomicroscopic images are taken at several positions on the tumor.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
To test of the ability of the surgeon to obtain interpretable images during surgery.
Time Frame: During surgery
During surgery

Secondary Outcome Measures

Outcome Measure
Time Frame
To correlate the in vivo endomicroscopy images with traditional histopathology.
Time Frame: one week
one week
To evaluate the usability of the device in the OR environment.
Time Frame: During surgery
During surgery

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Carl Zeiss Surgical GmbH

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2008

Primary Completion (Actual)

November 1, 2009

Study Completion (Actual)

November 1, 2009

Study Registration Dates

First Submitted

July 29, 2009

First Submitted That Met QC Criteria

July 29, 2009

First Posted (Estimate)

July 30, 2009

Study Record Updates

Last Update Posted (Estimate)

November 10, 2009

Last Update Submitted That Met QC Criteria

November 9, 2009

Last Verified

November 1, 2009

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 002441

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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