Biopsy Protocol of Upper Gastrointestinal Subepithelial Tumors:Diagnostic Accuracy of EUS-FNB Versus Unroofing Biopsy

September 28, 2020 updated by: Yonsei University

To increase the diagnostic accuracy of subepithelial tumors, larger tissue samples are required. It is difficult to obtain adequate tissue samples. There were several biopsy methods to obtain tissue samples. Pathological examination would include mitosis counts, particularly in hypoechoic subepithelial tumors located in the 4th layer of the gastric wall, where differentiation between leiomyoma of benign nature and gastrointestinal stromal tumor (GIST) of malignant potential is essential.

So We hypothesize that unroofing biopsy is an more appropriate method than EUS-FNB(endoscopic ultrasonography guided fine needle biopsy). We will compare diagnostic accuracy and complications between EUS-FNB & unroofing biopsy.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

47

Phase

  • Not Applicable

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

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

19 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Older than 19 years old and younger than 80 years old
  • Suspected upper gastrointestinal subepithelial tumors(≥15mm, ≤35mm) that were originated from muscularis propria layer on endoscopic ultrasonography(EUS)

Exclusion Criteria:

  • Patient who had bleeding tendency
  • Any previous surgery on esophagus, stomach or duodenum
  • Patients who can not be underwent sedated endoscopy
  • Gastrointestinal subepithelial tumor that was not origianted from muscularis propria layer on EUS
  • Constrast related allergic disease

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: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: unroofing biopsy
Procedure: unroofing biopsy
Unroofing biopsy menas that the mucosa is resected with endoscopic mucosal resection and biopsies are done repeatedly for the exposed tumor with a conventional forcep. It will be performed for the patients with a suspected upper gastrointestinal subepithelial tumor after EUS-FNB. After unroofing biopsy, the final histopathological result will be used to determine diagnostic accuracy.
Active Comparator: EUS-FNB
Procedure: EUS-FNB(endoscopic ultrasonography guided fine needle biopsy)
EUS-FNB will be performed for the same patients who have a gastrointestinal subepithelail tumor before unroofing biopsy. EUS-FNB is called when the tissue is obtained by puncutre of a tumor, the tissue whithin the lumen of the fine needle being detached by rotatin, and the needle withdrawn. The pathological result will be also used to compare diagnostic accuracy between EUS-FNB & unroofing biopsy.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
diagnostic accuracy
Time Frame: within 7 days
We will compare between diagnostic accuracy of EUS-FNB & unroofing biopsy using final histopathological result.
within 7 days

Secondary Outcome Measures

Outcome Measure
Time Frame
number of complications of procedure
Time Frame: within 7 days
within 7 days
accuracy of malignant potential on contrast enhanced EUS
Time Frame: within 7 days
within 7 days

Collaborators and Investigators

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

Sponsor

Yonsei University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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 (Actual)

January 2, 2016

Primary Completion (Actual)

June 1, 2017

Study Completion (Actual)

June 1, 2017

Study Registration Dates

First Submitted

January 1, 2016

First Submitted That Met QC Criteria

January 4, 2016

First Posted (Estimate)

January 5, 2016

Study Record Updates

Last Update Posted (Actual)

September 29, 2020

Last Update Submitted That Met QC Criteria

September 28, 2020

Last Verified

September 1, 2020

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • 4-2015-1033

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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Locations

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