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The role of epidermal growth factor receptor in advanced non-small cell lung carcinoma
1Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, USA. pjanne@partners.org
Abstract:
Chemotherapy is the standard of care for patients with advanced non-small cell lung cancer (NSCLC). Over the past 20 years, advances in chemotherapy have shown minimal incremental improvement in the survival outcomes of patients with advanced NSCLC. With the identification of molecular and genetic alterations in lung cancer, several new potential rationally designed therapeutic targets have emerged. One of these is the epidermal growth factor receptor (EGFR) and member of the ErbB family of receptor tyrosine kinases. Several inhibitors, both antibodies directed at the extra-cellular portion of the receptor, and small molecule inhibitors directed at the tyrosine kinase domain of EGFR are in clinical development in lung cancer. This article will review the pre-clinical rationale and the clinical studies of EGFR inhibitors alone and/or in combination with chemotherapy that have been performed to date in advanced NSCLC.
Insights
Chemotherapy offers limited survival benefits for advanced non-small cell lung cancer (NSCLC). Epidermal growth factor receptor (EGFR) inhibitors represent a new therapeutic strategy, with ongoing clinical trials exploring their efficacy alone and with chemotherapy.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Chemotherapy remains the standard treatment for advanced non-small cell lung cancer (NSCLC).
- Recent advancements in chemotherapy have yielded only marginal improvements in patient survival outcomes.
- The discovery of molecular and genetic alterations in lung cancer has identified new therapeutic targets.
Purpose of the Study:
- To review the pre-clinical rationale for targeting the epidermal growth factor receptor (EGFR) in NSCLC.
- To summarize clinical studies investigating EGFR inhibitors in advanced NSCLC.
- To evaluate the efficacy of EGFR inhibitors as monotherapy and in combination with chemotherapy.
Main Methods:
- Review of pre-clinical data on EGFR and ErbB family signaling pathways.
- Analysis of clinical trial data for EGFR inhibitors in advanced NSCLC.
- Assessment of both antibody-based and small molecule EGFR inhibitors.
Main Results:
- EGFR inhibitors show promise as targeted therapies for NSCLC.
- Clinical development includes antibodies and small molecule inhibitors targeting EGFR.
- Combination therapy with chemotherapy is under investigation.
Conclusions:
- Targeting EGFR represents a rational therapeutic approach for advanced NSCLC.
- Ongoing clinical trials are crucial for establishing the role of EGFR inhibitors.
- Further research is needed to optimize treatment strategies involving EGFR inhibitors and chemotherapy.
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