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Development of a New Immunochemistry Method Using Antibodies of Proteins Related Bile Duct Cancer

Primary Purpose

Bile Duct Obstruction, Extrahepatic

Status
Completed
Phase
Not Applicable
Locations
Korea, Republic of
Study Type
Interventional
Intervention
Cytology staining
Sponsored by
Gangnam Severance Hospital
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional diagnostic trial for Bile Duct Obstruction, Extrahepatic focused on measuring bile duct obstruction, extrahepatic, cytology, aminoacyl-tRNA synthetases

Eligibility Criteria

19 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Patients with biliary cancer confirmed by imaging (CT, MRI, positron emission tomography)
  • Patients with bile duct cancer diagnosed using brushing cytology by endoscopic retrograde pancreaticoduodenoscopy
  • Patients who underwent surgical treatment with biliary cancer
  • Patients with bile duct stenosis

Exclusion Criteria:

  • Minors under the age of 19, vulnerable subjects such as illiteracy
  • Necrotic specimens
  • Samples with non-diagnostic cytology results and insufficient cells for further evaluation
  • Samples classified as neoplastic (benign or other)
  • Patient with cholangitis in the bile duct

Sites / Locations

  • CHA Bundang Medical Center
  • Gangnam Severance Hospital
  • In Ha University Hospital
  • Soon Chun Hyang University Hospital, Cheonan
  • Gachon University Gil Medical Center
  • Pusan National University Hospital

Arms of the Study

Arm 1

Arm Type

Experimental

Arm Label

Bile duct stenosis

Arm Description

This arm includes patients with bile duct stenosis. Endobiliary brushing cytology specimens will be obtained with endoscopic retrograde cholangiopancreatography (ERCP) of patients with bile duct stenosis. Cytology staining will be performed in the cytology specimens.

Outcomes

Primary Outcome Measures

The usefulness of new staining method
The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of new staining method will be compared with th conventional Pap staining of brushing cytology specimens.

Secondary Outcome Measures

Full Information

First Posted
October 14, 2018
Last Updated
February 2, 2020
Sponsor
Gangnam Severance Hospital
Collaborators
Korea Institute of Science and Technology
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1. Study Identification

Unique Protocol Identification Number
NCT03708445
Brief Title
Development of a New Immunochemistry Method Using Antibodies of Proteins Related Bile Duct Cancer
Official Title
Development of a New Immunochemistry Method Using Antibodies of Aminoacyl-tRNA Synthetases Group and Aminoacyl-transfer Ribonucleic Acid Synthetases-interacting Multifunctional protein2 Lacking Exon 2 in the Bile Duct Cancer Cell; Multicenter Study
Study Type
Interventional

2. Study Status

Record Verification Date
February 2020
Overall Recruitment Status
Completed
Study Start Date
November 1, 2018 (Actual)
Primary Completion Date
January 22, 2020 (Actual)
Study Completion Date
January 22, 2020 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
Gangnam Severance Hospital
Collaborators
Korea Institute of Science and Technology

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The sensitivity of brushing cytology used to distinguish the cause of biliary strictures is low and clinical usefulness is not secured. The aim of this study was to develop a new differential staining method for cytology which is difficult to differentiate by the conventional staining method using biliary cancer related protein expressed only in bile duct cancer.
Detailed Description
Hypothesis: The statistical significance of new staining method using aminoacyl-tRNA synthetases (ARSs) group in normal bile duct cells and the bile duct cancer cells collected by endoscopic retrograde pancreaticoduodenoscopy (ERCP) will be compared to prove the usefulness of the new staining method. Clinical study design: The bile duct cytology will be obtained by brushing cytology using ERCP in patients with biliary stenosis. The expression of ARSs in the brushing cytology will be evaluated by new staining method and compare with the results of conventional cytology staining method including Papanicolaou staining. Immunofluorescence or immunohistochemistry staining will be performed to differentiate the presence of the tumor. The sensitivity and specificity of the new staining method will be compared with the conventional staining method and its usefulness be confirmed.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Bile Duct Obstruction, Extrahepatic
Keywords
bile duct obstruction, extrahepatic, cytology, aminoacyl-tRNA synthetases

7. Study Design

Primary Purpose
Diagnostic
Study Phase
Not Applicable
Interventional Study Model
Single Group Assignment
Model Description
The conventional staining method and new staining method will be performed in cytology specimens obtained from same patient.
Masking
None (Open Label)
Allocation
N/A
Enrollment
240 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Bile duct stenosis
Arm Type
Experimental
Arm Description
This arm includes patients with bile duct stenosis. Endobiliary brushing cytology specimens will be obtained with endoscopic retrograde cholangiopancreatography (ERCP) of patients with bile duct stenosis. Cytology staining will be performed in the cytology specimens.
Intervention Type
Diagnostic Test
Intervention Name(s)
Cytology staining
Intervention Description
Two staining will be performed in cytology specimens obtained from same patient. The cytology specimen will be obtained through brushing cytology using endoscopic retrograde cholangiopancreatography conventional cytology staining method new cytology staining method using antibody of aminoacyl-tRNA synthetases
Primary Outcome Measure Information:
Title
The usefulness of new staining method
Description
The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of new staining method will be compared with th conventional Pap staining of brushing cytology specimens.
Time Frame
1 year

10. Eligibility

Sex
All
Minimum Age & Unit of Time
19 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Patients with biliary cancer confirmed by imaging (CT, MRI, positron emission tomography) Patients with bile duct cancer diagnosed using brushing cytology by endoscopic retrograde pancreaticoduodenoscopy Patients who underwent surgical treatment with biliary cancer Patients with bile duct stenosis Exclusion Criteria: Minors under the age of 19, vulnerable subjects such as illiteracy Necrotic specimens Samples with non-diagnostic cytology results and insufficient cells for further evaluation Samples classified as neoplastic (benign or other) Patient with cholangitis in the bile duct
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Institutional Review Board
Organizational Affiliation
Gangnam Severance Hospital, Yonsei University College of Medicine
Official's Role
Study Chair
Facility Information:
Facility Name
CHA Bundang Medical Center
City
Seongnam
State/Province
Bundang-gu
ZIP/Postal Code
13496
Country
Korea, Republic of
Facility Name
Gangnam Severance Hospital
City
Seoul
State/Province
Gangnam-gu
ZIP/Postal Code
06229
Country
Korea, Republic of
Facility Name
In Ha University Hospital
City
Incheon
State/Province
Jung-gu
ZIP/Postal Code
22332
Country
Korea, Republic of
Facility Name
Soon Chun Hyang University Hospital, Cheonan
City
Cheonan
State/Province
Namdong-gu
ZIP/Postal Code
31151
Country
Korea, Republic of
Facility Name
Gachon University Gil Medical Center
City
Incheon
State/Province
Namdong-gu
ZIP/Postal Code
21565
Country
Korea, Republic of
Facility Name
Pusan National University Hospital
City
Busan-si
State/Province
Seo-gu
ZIP/Postal Code
49241
Country
Korea, Republic of

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
We plan to share the following individual participant data with other researchers during study period. Study Protocol, Statistical Analysis Plan (SAP), Informed Consent Form (ICF), Clinical Study Report (CSR), Analytic Code
IPD Sharing Time Frame
1 year
IPD Sharing Access Criteria
Primary investigator Sub primary investigator
Citations:
PubMed Identifier
33965384
Citation
Jang SI, Nahm JH, Kwon NH, Jeong S, Lee TH, Cho JH, Kwon CI, Kim DU, Kim JM, Cho HD, Lee HS, Kim S, Lee DK. Clinical utility of methionyl-tRNA synthetase 1 immunostaining in cytologic brushings of indeterminate biliary strictures: a multicenter prospective study. Gastrointest Endosc. 2021 Oct;94(4):733-741.e4. doi: 10.1016/j.gie.2021.04.026. Epub 2021 May 6.
Results Reference
derived

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Development of a New Immunochemistry Method Using Antibodies of Proteins Related Bile Duct Cancer

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