Detection of EGFR Mutation in Malignant Pleural Effusion of Lung Cancer Patients and Cancer Cell Lines Establishment

NSCLC Clinical Trial

— EGFR  

Official title:

Detection of Epithelial Growth Factor Receptor (EGFR) Mutation in Malignant Pleural Effusion of Lung Cancer Patients and Cancer Cell Lines Establishment

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT00752076
• Other study ID #: 200804019R
• Status: Recruiting
• Phase: N/A
• First received: September 10, 2008
• Last updated: November 25, 2009
• Start date: April 2008
• Est. completion date: March 2011

Study information

• Verified date: November 2009
• Source: National Taiwan University Hospital
• Contact: Shang-Gin Wu, MD
• Phone: 0968661892
• Email: b8501091[@]tmu.edu.tw
• Is FDA regulated: No
• Health authority: Taiwan: Department of Health
• Study type: Interventional

Clinical Trial Summary

1. Detection EGFR mutation of cancer cells from malignant pleural effusion. 2. Established the cancer cell lines with without EGFR mutation from malignant pleural effusion.

Description:

Lung cancer is the leading cause of mortality in the world. Previous study has shown that about 88% lung cancer cases belong to non-small cell lung cancer (NSCLC) in Taiwan (1). Approximately 50~90% of NSCLC patients had expression (or described as overexpression) of EGFR in cancer (2,3). Although targeting the EGFR kinase domain using the inhibitors gefitinib (Iressa) and erlotinib (Tarceva) has no effect against solid tumors, it achieves impressive response in subgroup of NSCLC especially in Asian ethnic background, female sex, the absence of a history of smoking, and a tumor with histologic feature of adenocarcinoma (3,4,5). Molecular studies of highly responsive cases revealed high percentage of somatic mutation within the tyrosine kinase, ATP-binding domain of the EGFR gene (6). One possible explanation for this phenomenon is that the cancer cells are "addicted" to signaling via the mutant EGFRs and die when the mutant oncoprotein is inactivated (7). However, specific mechanisms underlying epidermal growth factor tyrosine kinase inhibitor (EGFR-TKI) induced cell death have not been well delineated (7).

Approximately 90% of mutations affect a few specific amino acids. In-frame deletions in exon 19 centered on codons 756 to 750 make up 45~50% of mutations, and another 35~45% consist of the missense mutation leucine to arginine at codon 858 (L858R) in exon 21 (8, 9, 10). The link between EGFR-TKI response and EGFR mutations have been confirmed, but the increased prevalence of mutations in Asian (25%to 50%) compared with North American and Western European patients (10%) is currently unexplained (6,8-12). The response rate to TKI treatment in mutations-positive is 77% (30% to 100% with most series >60%) compared with 10% in mutation-negative cases (6). It is interesting that exon 19 deletion have increased response and survival with TKIs compared with L858R cases (10, 13, 14). This is in contrast to the natural history of patients, where those with exon 19 deletions appear to have shorter survival than those with L858R (8). The biological difference is still unknown and different mutations may have different biochemical signaling properties (15).

In this study, we will collect the pleural effusion from lung cancer patients. We will characterize the EGFR status of the cancer cell from malignant pleural effusion and try to establish the cancer cell lines from these patients. We hope to establish several cell lines with different mutations and then we can compare the difference responses and signal pathways in these cell lines. We can also explore the detailed mechanism of TKI responsive cancer cell and try to develop other agent to enhance the pathways.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 100
• Est. completion date: March 2011
• Est. primary completion date: March 2011
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• All malignant pleural effusion related to NSCLC between April 2008 and March 2009.

• Older than 18 years old.

• The patients who received thoracentesis

Exclusion Criteria:

• The patients who are not compatible with inclusion criteria.

Study Design

Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Basic Science

Related Conditions & MeSH terms

• NSCLC
• Pleural Effusion
• Pleural Effusion, Malignant

Intervention

Other:
• cancer cell lines establishment
Detection of epithelial growth factor receptor (EGFR) mutation in malignant pleural effusion of lung cancer patients and cancer cell lines establishment

Locations

Country	Name	City	State
Taiwan	National Taiwan University Hospital	Taipei
Taiwan	National Taiwan University Hospital	Taipei

Sponsors (1)

Lead Sponsor	Collaborator
National Taiwan University Hospital

Country where clinical trial is conducted

Taiwan, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	EGFR mutation in malignant pleural effusion of lung cancer patients cancer cell lines establishment		1 year	Yes