Comparison Trial of White Light, Autofluorescence and Narrow Band Imaging Bronchoscopy

Lung Cancer Clinical Trial

— NWA  

Official title:

A Clinical Comparison Trial of White Light Bronchoscopy, Autofluorescence Bronchoscopy and Narrow Band Imaged Bronchoscopy

Clinical Trial Details — Status: Withdrawn

Administrative data

• NCT number: NCT00548730
• Other study ID #: MMC07/06VA14
• Status: Withdrawn
• Start date: October 1, 2007
• Est. completion date: May 31, 2009

Study information

• Verified date: December 2023
• Source: Maimonides Medical Center
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

The purpose of the study is to compare the three methods of bronchoscopic imaging to determine what combination is optimum to identify neoplastic mucosal abnormalities. The ability to decrease the rate of false-positive and false negative findings of bronchoscopy also will be studied for each spectroscopic technique separately and for their combination.

Description:

Patients with known or suspected malignancies of the lung and with a medical indication for a bronchoscopy will be invited to participate in the study. All patients must be over 18 years old and must sign informed consent. The endoscopic examination of the bronchial tree will be performed using a commercially available flexible fluorescence bronchoscope (11004BI; Karl Storz; Culver City, CA) and the flexible white light video-bronchoscope (BF-T180; Olympus; Center Valley, PA).

Images obtained will be photographed using both video recordings and parallel images of white light and imaged bronchoscopy. These digital images will be electronically stored and evaluated at a later time. Biopsies will be obtained of all suspected abnormalities. These will be correlated with the images.

Images will be identified as normal, suspect or abnormal based upon each modality independently, paired with the spectral image and all three combined. The control will be an area considered normal by all modes of bronchoscopy. Images will be graded at the time of bronchoscopy. Later, all images will be graded in a blind fashion by two independent bronchoscopists. Standard statistical analysis using paired Student's t test will be applied. We anticipate that the combination of one or more imaged bronchoscopy techniques will increase accuracy by 25%. Power calculation to detect such a difference will require 140 abnormal specimens. If 50% of patients examined have an abnormality, the study population will need to be around 300 patients.

Histopathology reports will be obtained on all specimens. Abnormal results will be discussed with the individual patient and appropriate procedures will be performed based upon best medical practices. These procedures and patient follow-up are beyond the scope of the study.

Recruitment information / eligibility

• Status: Withdrawn
• Enrollment: 0
• Est. completion date: May 31, 2009
• Est. primary completion date: May 31, 2009
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Patients with lung abnormalities that have an indication for bronchoscopy

Exclusion Criteria:

• Inability to tolerate bronchoscopy

Related Conditions & MeSH terms

• Lung Cancer

Intervention

Procedure:
• Bronchoscopy
The endoscopic examination of the bronchial tree will be performed using a commercially available flexible fluorescence bronchoscope and the flexible white light video-bronchoscope. Biopsies are taken of a normal region and all abnormal regions.

Locations

Country	Name	City	State
United States	Maimonides Medical Center	Brooklyn	New York

Sponsors (1)

Lead Sponsor	Collaborator
Antonios Likourezos

Country where clinical trial is conducted

United States, 

References & Publications (7)

DaCosta RS, Wilson BC, Marcon NE. Light-induced fluorescence endoscopy of the gastrointestinal tract. Gastrointest Endosc Clin N Am. 2000 Jan;10(1):37-69, vi. — View Citation

Gono K, Obi T, Yamaguchi M, Ohyama N, Machida H, Sano Y, Yoshida S, Hamamoto Y, Endo T. Appearance of enhanced tissue features in narrow-band endoscopic imaging. J Biomed Opt. 2004 May-Jun;9(3):568-77. doi: 10.1117/1.1695563. — View Citation

Haussinger K, Becker H, Stanzel F, Kreuzer A, Schmidt B, Strausz J, Cavaliere S, Herth F, Kohlhaufl M, Muller KM, Huber RM, Pichlmeier U, Bolliger ChT. Autofluorescence bronchoscopy with white light bronchoscopy compared with white light bronchoscopy alone for the detection of precancerous lesions: a European randomised controlled multicentre trial. Thorax. 2005 Jun;60(6):496-503. doi: 10.1136/thx.2005.041475. — View Citation

Jang TW, Oak CH, Chun BK, Jung MH. Detection of pre-invasive endobronchial tumors with D-light/autofluorescence system. J Korean Med Sci. 2006 Apr;21(2):242-6. doi: 10.3346/jkms.2006.21.2.242. — View Citation

Lee P, Brokx HA, Postmus PE, Sutedja TG. Dual digital video-autofluorescence imaging for detection of pre-neoplastic lesions. Lung Cancer. 2007 Oct;58(1):44-9. doi: 10.1016/j.lungcan.2007.04.009. Epub 2007 May 29. — View Citation

Ueno K, Kusunoki Y, Imamura F, Yoshimura M, Yamamoto S, Uchida J, Tsukamoto Y. Clinical experience with autofluorescence imaging system in patients with lung cancers and precancerous lesions. Respiration. 2007;74(3):304-8. doi: 10.1159/000093233. Epub 2006 May 5. — View Citation

Vincent BD, Fraig M, Silvestri GA. A pilot study of narrow-band imaging compared to white light bronchoscopy for evaluation of normal airways and premalignant and malignant airways disease. Chest. 2007 Jun;131(6):1794-9. doi: 10.1378/chest.06-2794. Epub 2007 May 15. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Degree of correlation between three different bronchoscopic images		One day
Secondary	Elimination of false positives and negative bronchoscopic examinations for neoplasia		One day