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Published on: June 26, 2019
Erlotinib in the treatment of non-small cell lung cancer: current status and future developments
Cesare Gridelli1, Paolo Maione, Maria Anna Bareschino
1Division of Medical Oncology, S.G. Moscati Hospital, Contrada Amoretta, Avellino, Italy. cgridelli@libero.it
Abstract:
Erlotinib is an orally small molecule inhibiting the tyrosine kinase activity of the epidermal growth factor receptor (EGFR). Currently, erlotinib, at a standard oral daily dose of 150 mg, is licensed for the treatment of unselected recurrent non-small cell lung cancer (NSCLC) patients, however, it is being investigated in all stages of NSCLC. Erlotinib is well tolerated, with common toxicities including rash and diarrhoea. The optimization of the therapeutic impact of erlotinib in NSCLC will be more defined when reliable predictive factors are identified. An important step has been made in the molecular characterization of potentially sensitive NSCLC patients. In fact, we have learned that activation, somatic EGFR gene mutations within the tyrosine kinase domain, are associated with a high possibility of a long lasting therapeutic response to erlotinib. The present review discusses the role of erlotinib in the treatment of NSCLC.
Insights
Erlotinib effectively treats non-small cell lung cancer (NSCLC) by targeting epidermal growth factor receptor (EGFR). Identifying EGFR mutations improves treatment response prediction for NSCLC patients.
Area of Science:
- Oncology
- Pharmacology
- Molecular Biology
Background:
- Erlotinib is an oral small molecule inhibitor targeting epidermal growth factor receptor (EGFR) tyrosine kinase activity.
- It is approved for recurrent non-small cell lung cancer (NSCLC) and is under investigation for all NSCLC stages.
- Common side effects include rash and diarrhea; the drug is generally well-tolerated.
Purpose of the Study:
- To review the role of erlotinib in treating non-small cell lung cancer (NSCLC).
- To discuss the importance of identifying predictive factors for optimizing erlotinib's therapeutic impact.
- To highlight molecular characterization in identifying potentially sensitive NSCLC patients.
Main Methods:
- Literature review on erlotinib's efficacy and safety in NSCLC.
- Analysis of molecular characteristics associated with treatment response.
- Discussion of predictive factors for erlotinib therapy.
Main Results:
- Somatic mutations in the EGFR tyrosine kinase domain are linked to a high likelihood of sustained therapeutic response to erlotinib.
- Erlotinib demonstrates tolerability with manageable toxicities.
- Molecular characterization advances the identification of sensitive NSCLC patient populations.
Conclusions:
- Erlotinib is a valuable therapeutic option for NSCLC.
- Identifying EGFR mutations is crucial for predicting and enhancing treatment outcomes.
- Further research into predictive factors will refine erlotinib's clinical application in NSCLC.
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