The Accuracy of Optic Biopsies Versus Conventional Biopsies for the Diagnosis of Superficial Bladder Neoplasia

NCT ID: NCT02841904

Last Updated: 2018-03-06

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

189 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-06-30

Study Completion Date

2019-12-31

Brief Summary

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This study evaluates the accuracy of Confocal Laser Endomicroscopy (CLE) in the diagnostic of non-invasive flat and exophytic bladder neoplasia. CLE results are compared to histopathology results.

Detailed Description

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Confocal Laser Endomicroscopy (CLE) is a technique which during endoscopic examination of the bladder (cystoscopy) gives magnified, microscopic-like images of tissues and cells, by inserting a laser fiber through the cystoscope. CLE aims to target biopsies during cystoscopy and reduce the number of biopsies, and the need for additional cystoscopies i general anesthesia.

This study evaluates the ability of CLE to assess tissue in the bladder. The ability to diagnose normal mucosa, inflammation and tumors of the bladder by the CLE is compared to the histopathological examination of selected tissues (biopsies).

Patients scheduled for cystoscopy with biopsies in general anesthesia are recruited for the study. After standard cystoscopy where suspicious mucosal areas are located and marked, A contrast agent (Fluorescein) is administrated intravenously. CLE fiber is introduced through the cystoscope and the marked mucosal areas are examined by direct contact with the laser fiber. The pathologist assesses the CLE video and registers the results. Biopsies are then taken from the selected, suspicious areas. The results of CLE assessment are compared with the histopathological results.

Conditions

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Bladder Cancer

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

SINGLE

Investigators

Study Groups

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CLE

CLE assessed by the pathologist

Group Type OTHER

Confocal LASER Endomicroscopy

Intervention Type DEVICE

Patients scheduled for bladder endoscopic surgery under general anesthesia are offered to be included in our study. The suspicious mucosal areas are marked then examined with CLE. Tissue samples are taken based on the usual standard criterias. The samples are evaluated microscopically and compared with the results of the CLE technique. A single surgeon performs all surgeries. Biopsies are anlysed by a pathologist from Herlev and Gentofte Hospital's Pathology Department, which is affiliated CLE- study.

Biopsy

Histology assessed by the pathologist

Group Type ACTIVE_COMPARATOR

Confocal LASER Endomicroscopy

Intervention Type DEVICE

Patients scheduled for bladder endoscopic surgery under general anesthesia are offered to be included in our study. The suspicious mucosal areas are marked then examined with CLE. Tissue samples are taken based on the usual standard criterias. The samples are evaluated microscopically and compared with the results of the CLE technique. A single surgeon performs all surgeries. Biopsies are anlysed by a pathologist from Herlev and Gentofte Hospital's Pathology Department, which is affiliated CLE- study.

Interventions

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Confocal LASER Endomicroscopy

Patients scheduled for bladder endoscopic surgery under general anesthesia are offered to be included in our study. The suspicious mucosal areas are marked then examined with CLE. Tissue samples are taken based on the usual standard criterias. The samples are evaluated microscopically and compared with the results of the CLE technique. A single surgeon performs all surgeries. Biopsies are anlysed by a pathologist from Herlev and Gentofte Hospital's Pathology Department, which is affiliated CLE- study.

Intervention Type DEVICE

Other Intervention Names

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Cellvisio

Eligibility Criteria

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Inclusion Criteria

* First time Transurethral Resection of Bladder (TURB) for bladder tumors under 3 cm
* Suspicious mucosa / Carcinoma in situ
* Recurrent pTa
* Positive cytology with normal flexible cystoscopy
* Control after Bacille Calmette Guérin (BCG) treatment

Exclusion Criteria

* Allergy to fluorescein
* Pregnant and lactating women.
* Renal failure (eGFR \<20 ml / min)
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Herlev Hospital

OTHER

Sponsor Role lead

Responsible Party

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Sami Beji, MD

Medical doctor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Sami Beji, MD

Role: PRINCIPAL_INVESTIGATOR

Herlev Hospital

Locations

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Urology department

Herlev, , Denmark

Site Status

Countries

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Denmark

Central Contacts

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Sami Beji, MD

Role: CONTACT

53720546 ext. +45

Mette Ladefoged Kopp Schmidt

Role: CONTACT

3868 1100 ext. +45

Other Identifiers

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H-15020548

Identifier Type: -

Identifier Source: org_study_id

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