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Gridelli, C. et al.

C. Gridelli, F. De Marinis, M. Di Maio, D. Cortinovis, F. Cappuzzo, T. Mok,

Gefitinib as first-line treatment for patients with advanced non-small-cell lung cancer with activating Epidermal Growth Factor Receptor mutation: implications for clinical practice and open issues.

Randomized trials comparing gefitinib with chemotherapy as first-line treatment in patients with EGFR mutated advanced NSCLC support gefitinib as a new, highly effective treatment option in this setting. However, its use in clinical practice has several relevant implications and open issues. In order to choose the best treatment, a molecular characterization is now mandatory, as part of baseline diagnostic procedures. Every effort should be made in order to obtain sufficient tissue. If a clinical enrichment has to be performed for selecting patients to test for EGFR mutation, a reasonable proposal is to test all non-squamous tumors, and patients with squamous tumors only if never smokers. In patients with EGFR mutated tumor, one major issue is the decision about immediate use of gefitinib as first-line, or after failure of standard chemotherapy. First-line gefitinib, compared to chemotherapy, is associated with longer progression-free survival, higher response rate, better toxicity profile and quality of life, and its administration as first-line warrants that all patients have the chance of receiving an EGFR inhibitor. Evidence about the efficacy of erlotinib in the same setting will be soon available, however, at the moment, there are no direct comparisons between gefitinib and erlotinib in EGFR mutated patients. Treatment with gefitinib is usually well tolerated. Typical side effects in most cases are of mild to moderate intensity, and usually manageable with temporary interruption of treatment. When indicated gefitinib appears feasible also in special populations, like elderly or unfit patients, characterized by a significantly poorer risk/benefit ratio with standard chemotherapy. Personalized medicine for patients with lung cancer is now a reality, and patients with EGFR mutation should be treated with first-line EGFR tyrosine kinase inhibitor.[1]

References

Gefitinib as first-line treatment for patients with advanced non-small-cell lung cancer with activating Epidermal Growth Factor Receptor mutation: implications for clinical practice and open issues. Gridelli, C., De Marinis, F., Di Maio, M., Cortinovis, D., Cappuzzo, F., Mok, T. Lung. Cancer (2011) [Pubmed]

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