Endobronchial Ultrasound Needle Aspiration With and Without Suction

May 25, 2022 updated by: Stefano Gasparini, Università Politecnica delle Marche

Diagnostic Accuracy of Endobronchial Ultrasound Needle Aspiration With and Without Suction: a Single-center Randomized Controlled Trial

The main purpose of the present study is to compare the diagnostic yield of different aspiration techniques in Ultrasound-guided Transbronchial Needle Aspiration (EBUS-TBNA) in the diagnosis of hilar/mediastinal adenopathy

Study Overview

Detailed Description

The role of ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) for the diagnosis of hilar/mediastinal adenopathy is well established. However, different aspiration techniques are available and it's not clear if there's a significant difference between suction vs no suction aspiration. Of great interest is the role of different aspiration techniques in EBUS-TBNA in determining the diagnostic yield for histopathological evaluation, including molecular biology and PD-L1 amplification assessment in lung cancer diagnosis.

In this context, no comparative studies between suction and no suction aspiration have been performed; moreover, considering only suction techniques, no studies evaluated if there's a difference between aspiration with EBUS dedicated syringe and manual aspiration through Cameco syringe. It is very important for clinical practice to definitively assess the non inferiority of no suction techniques in EBUS-TBNA in terms of diagnostic yield, and to provide information regarding the quality of histologic sample to define the best diagnostic strategy.

The study is focused on a minimum of 306 patients who have at least one hilar/mediastinal lymph node > 1 cm on CT scan or hypermetabolic on FDG-PET in at least one approachable lymph nodal station for which a diagnostic cyto-histological assessment is required for clinical purpose. Patients will be randomized 1:1:1 (no suction : passive suction with EBUS dedicated syringe : manual suction with Cameco syringe) by a computer-generated random-allocation system to undergo EBUS-TBNA with one of the three different aspiration techniques. The pathologist provides a final diagnosis and, as secondary endpoint, a qualitative assessment of the sample quality using both a binary and a semi-quantitative score.

Study Type

Interventional

Enrollment (Anticipated)

306

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 Contact

Study Contact Backup

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

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • age ≥ 18years;
  • presence of at least one hilar/mediastinal adenopathy >1 cm on short axis assessed by contrast-enhanced CT scan and/or hypermetabolic adenopathy assessed by FDG-PET;
  • ability to give an informed consent

Exclusion Criteria:

  • coagulopathy or bleeding diathesis that cannot be corrected;
  • severe refractory hypoxemia;
  • unstable hemodynamic status;
  • inability to give an informed consent

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: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: DOUBLE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
ACTIVE_COMPARATOR: No suction EBUS-TBNA
In this technique the stylet is slowly removed without any kind of device in order to avoid active suction.

The needle is moved from a side to side of the lymphnode for 15 times. Each lymphnode is sampled three times.

The samples obtained will be examined on-site by experienced blinded cytopathologist.All specimens obtained will be send to definitive cytological and histological evaluation and the final diagnosis will be collected and reported on CRFs.

ACTIVE_COMPARATOR: Passive suction through dedicated EBUS-TBNA syringe
After rapid stylet removal, suction is applied through a vacuteiner syringe, without active aspiration.

The needle is moved from a side to side of the lymphnode for 15 times. Each lymphnode is sampled three times.

The samples obtained will be examined on-site by experienced blinded cytopathologist.All specimens obtained will be send to definitive cytological and histological evaluation and the final diagnosis will be collected and reported on CRFs.

ACTIVE_COMPARATOR: Manual applied suction EBUS-TBNA through a pistol-grip syringe holder
After rapid stylet removal, suction is applied through Cameco syringe pistol, that can apply active suction manually.

The needle is moved from a side to side of the lymphnode for 15 times. Each lymphnode is sampled three times.

The samples obtained will be examined on-site by experienced blinded cytopathologist.All specimens obtained will be send to definitive cytological and histological evaluation and the final diagnosis will be collected and reported on CRFs..

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
To compare the diagnostic yield of active suction vs passive suction vs no suction EBUS-TBNA in the diagnosis of hilar/mediastinal adenopathies
Time Frame: 36 months
The diagnostic yield is defined as the rate of diagnoses/total of cases. Assuming that the best technique provides a diagnostic yield of 94%, the non inferiority is defined if the difference between the best and the worst method is less than 3% with a non-inferiority limit of 10%.
36 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Adeguacy for molecular assessment in lung cancer
Time Frame: 36 months
Considering only the lung cancer diagnoses, the sample is considered adeguated is if provides all the available molecular evaluations included PD-L1 iperexpression
36 months
Qualitative evaluation of the sample by the pathologist
Time Frame: 36 months
The sample is evaluated by a pathologist that provides a semi-quantitative assessment of the sample, through a cell count: the sample is adeguate only if it contains more than diagnostic 100 cells.
36 months

Collaborators and Investigators

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

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.

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 (ANTICIPATED)

June 1, 2022

Primary Completion (ANTICIPATED)

June 26, 2022

Study Completion (ANTICIPATED)

June 26, 2024

Study Registration Dates

First Submitted

October 27, 2021

First Submitted That Met QC Criteria

October 27, 2021

First Posted (ACTUAL)

November 8, 2021

Study Record Updates

Last Update Posted (ACTUAL)

May 26, 2022

Last Update Submitted That Met QC Criteria

May 25, 2022

Last Verified

May 1, 2022

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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