Endoscopic Ultrasonography (EUS) Guided Fine Needle Aspiration Using Free Stylet 22g and 25 g Needles

This study is ongoing, but not recruiting participants.
Sponsor:
Collaborator:
Centre de Recherche du Centre Hospitalier de l'Université de Montréal
Information provided by (Responsible Party):
Centre hospitalier de l'Université de Montréal (CHUM)
ClinicalTrials.gov Identifier:
NCT01543282
First received: December 15, 2011
Last updated: February 25, 2013
Last verified: February 2013
  Purpose

This is a randomized controlled study comparing EUS-FNA with 22 gauge and 25 gauge needles in consecutive patients.

Summary

Background: three needle sizes for endoscopic ultrasonography guided fine needle aspiration (EUS-FNA) are currently available: 22 Gauge (G), 25 G and 19 G. However, well design studies comparing them regarding efficacy and feasibility are lacking.

Aims: to investigate diagnostic yield, specimen adequacy, feasibility and complications of the conventional 22 G compared with the 25 G needle.

Methods: patients ≥ 18 years, referred to EUS-FNA for a solid lesion will be considered for inclusion. Patients with suspected diagnosis of lymphoma, GIST, sarcoidosis, significant coagulopathy (APT < 50% or platelets < 50000/mm3), use of warfarin or other anticoagulants, use of clopidogrel within 7 days of EUS, inability or refusal to sign the informed consent and pregnancy or suspected pregnancy will be excluded.

Participants will be randomized to 22 G needle and 25 G FNA. Chi-square test will be used to compare proportions. Continuous variables will be compared using Student´s t test. A two-tailed P values of less than 0.05 will be considered statistically significant. The diagnostic yield of 25 G and 22 G needle will be evaluated by four criteria: sensitivity, specificity, positive predictive value and negative predictive value. An expected rate of 85% diagnostic yield from EUS guided FNA by using 22G needle will be considered. By using a power of 80% and an α value of 0.05 would be necessary 120 patients per group to detect a 15% difference in the rate of diagnostic yield.


Condition Intervention
Solid Neoplasms
Device: Endosonography guided fine needle aspiration cytology ( Cook Medical, Boston Scientific)

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Crossover Assignment
Masking: Single Blind (Subject)
Primary Purpose: Diagnostic
Official Title: Randomized Controlled Study Comparing Endoscopic Ultrasonography Guided Fine Needle Aspiration Using Free Stylet 22g and 25 g Needles in Solid Lesions

Resource links provided by NLM:


Further study details as provided by Centre hospitalier de l'Université de Montréal (CHUM):

Primary Outcome Measures:
  • Accuracy of stylet-free, solid lesion EUS-FNA using the 22 G FNA vs the 25 G FNA needle, in consecutive patients referred to EUS-FNA. [ Time Frame: 6 months ] [ Designated as safety issue: Yes ]

Secondary Outcome Measures:
  • Specimen adequacy, number of FNA passes, ease of puncture, failure of the FNA needle and complications [ Time Frame: 6 months ] [ Designated as safety issue: Yes ]

Estimated Enrollment: 240
Study Start Date: December 2011
Estimated Study Completion Date: August 2013
Estimated Primary Completion Date: June 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Active Comparator: EUS 22 gauge needle
EUS 22 g needle is the most common needle used in clinical practice. EUS-FNA passes will be performed without stylet until sample adequacy or until a maximum of 5 FNA passes in pancreatic lesions or 3 FNA passes in other lesions. In case of inadequate sample after 3 passes, or needle failure, cross over to the other type of needle is allowed.
Device: Endosonography guided fine needle aspiration cytology ( Cook Medical, Boston Scientific)
Patients will be randomized either to receive EUS-FNA with a 22 g needle or 25 g needle. EUS-FNA passes will be performed without stylet until sample adequacy or until a maximum of 5 FNA passes in pancreatic lesions or 3 FNA passes in other lesions. In case of inadequate sample after 3 passes, or needle failure, cross over to the other type of needle is allowed.
Other Names:
  • Cook Medical
  • Boston Scientific
Experimental: EUS 25 gauge needle
25 gauge needle is usually used less frequently but nowadays is increasingly used and is as well a valid option. EUS-FNA passes will be performed without stylet until sample adequacy or until a maximum of 5 FNA passes in pancreatic lesions or 3 FNA passes in other lesions. In case of inadequate sample after 3 passes, or needle failure, cross over to the other type of needle is allowed.
Device: Endosonography guided fine needle aspiration cytology ( Cook Medical, Boston Scientific)
Patients will be randomized either to receive EUS-FNA with a 22 g needle or 25 g needle. EUS-FNA passes will be performed without stylet until sample adequacy or until a maximum of 5 FNA passes in pancreatic lesions or 3 FNA passes in other lesions. In case of inadequate sample after 3 passes, or needle failure, cross over to the other type of needle is allowed.
Other Names:
  • Cook Medical
  • Boston Scientific

  Show Detailed Description

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Consecutive patients referred for EUS-FNA of a solid lesion.

Exclusion Criteria:

  • Age < 18 years
  • Patients with suspected diagnosis of lymphoma, GIST, sarcoidosis or other lesions in which a large amount of tissue will be required for diagnosis
  • Significant coagulopathy (INR > 1.5, platelets < 50000/mm3
  • Use of low molecular weight heparin, use of clopidogrel within 7 days of EUS)
  • Cystic lesions
  • Inability or refusal to sign the informed consent
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT01543282

Locations
Canada, Quebec
Hopital Saint Luc (Centre Hopitalier de l´Université du Montreal)
Montreal, Quebec, Canada, H2X3J4
Sponsors and Collaborators
Centre hospitalier de l'Université de Montréal (CHUM)
Centre de Recherche du Centre Hospitalier de l'Université de Montréal
Investigators
Principal Investigator: Anand V Sahai, MD Hopital Saint Luc (Centre Hopitalier de l´Université du Montreal) Montreal, Quebec, Canada
  More Information

Publications:

Responsible Party: Centre hospitalier de l'Université de Montréal (CHUM)
ClinicalTrials.gov Identifier: NCT01543282     History of Changes
Other Study ID Numbers: CE 11.150
Study First Received: December 15, 2011
Last Updated: February 25, 2013
Health Authority: Canada: Ethics Review Committee

Keywords provided by Centre hospitalier de l'Université de Montréal (CHUM):
endoscopic ultrasonography
fine needle aspiration cytology
22 gauge
25 gauge

Additional relevant MeSH terms:
Neoplasms

ClinicalTrials.gov processed this record on April 16, 2014