Comparison of Transbronchial, Cryoprobe and VATS Biopsy For the Diagnosis of Interstitial Lung Disease (ILD)

NCT ID: NCT01972685

Last Updated: 2019-07-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

14 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-06-30

Study Completion Date

2018-03-30

Brief Summary

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The objective of this study is to compare the sample size, architectural preservation and diagnostic yield of bronchoscopic cryo-probe transbronchial lung biopsy (C-TBBx) to bronchoscopic standard transbronchial lung biopsy (S-TBBx) and Video-Assisted Thoracoscopic Surgery (VATS) lung biopsy for the diagnosis of interstitial lung disease (ILD).

Detailed Description

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This is a prospective cohort study in which 20 subjects that have suspected ILD who are undergoing non-emergent surgical biopsy will be enrolled.

Patients who have been referred to the thoracic surgery service for VATS biopsy to diagnose suspected ILD and meet basic inclusion/exclusion criteria will be approached by the study investigators and informed of the study. An informed consent will be obtained during the clinic visit with the thoracic surgeon.

At the beginning of the surgical procedure, under general anesthesia in the operating room, patients will undergo flexible bronchoscopy through the endotracheal tube and obtain 10 standard transbronchial biopsies (S-TBBx) and 5 Cryoprobe biopsies (C-TBBx) with fluoroscopic guidance. S-TBBx will be performed using standard biopsy forceps (Boston Scientific, Natick, MA) - 2.0mm diameter. C-TBBx will be performed using the cryoprobe (ERBE, Tubingen, Germany) -1.9 mm diameter, 78cm in length. This cryoprobe is routinely used in the bronchoscopy suite for other applications such as foreign body removal and local treatment of carcinoma; therefore it is a technique already employed by the interventional pulmonologists who are familiar with its use. Once the biopsies are obtained by the interventional pulmonologist, the thoracic surgeon will perform video-assisted thoracoscopic biopsy (VATS) biopsy. Following their procedure, subjects will be monitored in the post-anesthesia care unit as per standard of care. As part of their ongoing follow-up care, all subjects will be monitored for any adverse events that may have resulted from either the surgical or bronchoscopic procedure, specifically bleeding or pneumothorax.

All biopsy samples will be analyzed by a specialist in pulmonary pathology.

The number and size of all biopsies, architectural preservation of the airways/alveoli, and pathological diagnosis will be reported by the pathologist. Diagnostic yield will be calculated for each biopsy technique and compared.

Conditions

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Interstitial Lung Disease

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Cryo vs Transbronchial vs VATS biopsy

Each patient will be brought to the operating room and will undergo transbronchial, cryoprobe and VATS biopsy of the lung.

Group Type OTHER

Cryobiopsy biopsy

Intervention Type PROCEDURE

Cryobiopsy vs. Transbronchial vs. VATS biopsy

Transbronchial Biopsy

Intervention Type PROCEDURE

VATS biopsy

Intervention Type PROCEDURE

Interventions

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Cryobiopsy biopsy

Cryobiopsy vs. Transbronchial vs. VATS biopsy

Intervention Type PROCEDURE

Transbronchial Biopsy

Intervention Type PROCEDURE

VATS biopsy

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Subject provides informed consent
* Subject is \>18 years of age
* Subject is scheduled to undergo VATS biopsy for suspected ILD as part of their standard medical care
* A negative pregnancy test in women of child-bearing potential
* Subject is mentally capable of understanding study procedures

Exclusion Criteria

* Study subject has any disease or condition that interferes with safe completion of the study including:

* Platelet count \< 50,000 or Coagulopathy defined as an International Normalized Ratio (INR) \> 1.5 on the day of procedure, as well as discontinuation of ticagrelor or clopidogrel within 5 days of procedure.
* Severely impaired lung function as determined with spirometry evidenced by a forced expiratory volume in 1 second (FEV1) \< 0.8, or radiographically as diffuse bullous disease
* Hemodynamic instability with systolic blood pressure \<90 mmHg or heart rate \> 120 beats/min, unless deemed to be stable with these values by the surgical or interventional pulmonary attending physicians
* Hypoxemia with pulse oximetry values \<88% or partial pressure of oxygen in arterial blood (PaO2) \< 60 on baseline oxygen requirements
* Concurrent participation in another study involving investigational drugs or investigational medical devices
* Inability to read and understand the necessary study documents
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Duke University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Momen M Wahidi, MD, MBA

Role: PRINCIPAL_INVESTIGATOR

Duke University

Locations

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Duke University Medical Center

Durham, North Carolina, United States

Site Status

Countries

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United States

References

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Griff S, Ammenwerth W, Schonfeld N, Bauer TT, Mairinger T, Blum TG, Kollmeier J, Gruning W. Morphometrical analysis of transbronchial cryobiopsies. Diagn Pathol. 2011 Jun 16;6:53. doi: 10.1186/1746-1596-6-53.

Reference Type BACKGROUND
PMID: 21679402 (View on PubMed)

Babiak A, Hetzel J, Krishna G, Fritz P, Moeller P, Balli T, Hetzel M. Transbronchial cryobiopsy: a new tool for lung biopsies. Respiration. 2009;78(2):203-8. doi: 10.1159/000203987. Epub 2009 Feb 21.

Reference Type BACKGROUND
PMID: 19246874 (View on PubMed)

Krasna MJ, White CS, Aisner SC, Templeton PA, McLaughlin JS. The role of thoracoscopy in the diagnosis of interstitial lung disease. Ann Thorac Surg. 1995 Feb;59(2):348-51. doi: 10.1016/0003-4975(94)00844-w.

Reference Type BACKGROUND
PMID: 7847948 (View on PubMed)

Deshmukh SP, Krasna MJ, McLaughlin JS. Video assisted thoracoscopic biopsy for interstitial lung disease. Int Surg. 1996 Oct-Dec;81(4):330-2.

Reference Type BACKGROUND
PMID: 9127787 (View on PubMed)

Krasna MJ, Deshmukh S, McLaughlin JS. Complications of thoracoscopy. Ann Thorac Surg. 1996 Apr;61(4):1066-9. doi: 10.1016/0003-4975(96)00021-5.

Reference Type BACKGROUND
PMID: 8607657 (View on PubMed)

Aktas Z, Gunay E, Hoca NT, Yilmaz A, Demirag F, Gunay S, Sipit T, Kurt EB. Endobronchial cryobiopsy or forceps biopsy for lung cancer diagnosis. Ann Thorac Med. 2010 Oct;5(4):242-6. doi: 10.4103/1817-1737.69117.

Reference Type BACKGROUND
PMID: 20981186 (View on PubMed)

Yarmus L, Akulian J, Gilbert C, Illei P, Shah P, Merlo C, Orens J, Feller-Kopman D. Cryoprobe transbronchial lung biopsy in patients after lung transplantation: a pilot safety study. Chest. 2013 Mar;143(3):621-626. doi: 10.1378/chest.12-2290.

Reference Type RESULT
PMID: 23328889 (View on PubMed)

Other Identifiers

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Pro00044455

Identifier Type: -

Identifier Source: org_study_id

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