Pilot Study to Investigate The Diagnostic Yield and Utility of 22g and 19g Endobronchial Ultrasound Transbronchial Needle Aspirate
Public ClinicalTrials.gov record NCT03311620. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
TH-112: Pilot Study to Investigate The Diagnostic Yield and Utility of 22g and 19g Endobronchial Ultrasound Transbronchial Needle Aspirate
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Needle biopsy samples are routinely collected to evaluate cytomorphology, immunohistochemical markers and for mutational analysis. With regular use of immunotheraputic interventions, needle biospy has become more frequent and requires bigger samples for an increasing battery of tests. There has been no clear consensus on which biopsy needle yields the best biopsy sample. It is unclear if large 19g needle offers better yield than a 22 g needle. Although previous studies comparing 21, 22 and 19g needles have suggested that larger needles yield larger biopsy sizes, conflictng studies have shown that larger biopsies lead to bloodier samples with potentially smaller fragments of tissue, offering no improvement in diagnostic, yield, adequacy or sample size. This study compares biopsy samples collected using 19g and 22g needles from patients of non small cell lung cancer (NSCLC) scheduled to undergo endobronchial ultrasound (EBUS) and transbroncial needle aspiration (TBNA).
Study identification
- NCT ID
- NCT03311620
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 40 participants
Conditions and interventions
Conditions
Interventions
Procedure
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- May 14, 2018
- Primary completion
- Jun 7, 2020
- Completion
- Jun 7, 2020
- Last update posted
- Oct 7, 2020
2018 – 2020
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Fox Chase Cancer Center | Philadelphia | Pennsylvania | 19111 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03311620, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Oct 7, 2020 · Synced Sep 7, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT03311620 live on ClinicalTrials.gov.