%0 Journal Article
%A Douillard, J-Y
%A Ostoros, G
%A Cobo, M
%A Ciuleanu, T
%A McCormack, R
%A Webster, A
%A Milenkova, T
%T First-line gefitinib in Caucasian EGFR mutation-positive NSCLC patients: a phase-IV, open-label, single-arm study.
%D 2014
%@ 0007-0920
%U http://hdl.handle.net/10668/1847
%X BACKGROUND:Phase-IV, open-label, single-arm study (NCT01203917) to assess efficacy and safety/tolerability of first-line gefitinib in Caucasian patients with stage IIIA/B/IV, epidermal growth factor receptor (EGFR) mutation-positive non-small-cell lung cancer (NSCLC).METHODS:TREATMENT:gefitinib 250 mg day(-1) until progression. Primary endpoint: objective response rate (ORR). Secondary endpoints: disease control rate (DCR), progression-free survival (PFS), overall survival (OS) and safety/tolerability. Pre-planned exploratory objective: EGFR mutation analysis in matched tumour and plasma samples.RESULTS:Of 1060 screened patients with NSCLC (859 known mutation status; 118 positive, mutation frequency 14%), 106 with EGFR sensitising mutations were enrolled (female 70.8%; adenocarcinoma 97.2%; never-smoker 64.2%). At data cutoff: ORR 69.8% (95% confidence interval (CI) 60.5-77.7), DCR 90.6% (95% CI 83.5-94.8), median PFS 9.7 months (95% CI 8.5-11.0), median OS 19.2 months (95% CI 17.0-NC; 27% maturity). Most common adverse events (AEs; any grade): rash (44.9%), diarrhoea (30.8%); CTC (Common Toxicity Criteria) grade 3/4 AEs: 15%; SAEs: 19%. Baseline plasma 1 samples were available in 803 patients (784 known mutation status; 82 positive; mutation frequency 10%). Plasma 1 EGFR mutation test sensitivity: 65.7% (95% CI 55.8-74.7).CONCLUSION:First-line gefitinib was effective and well tolerated in Caucasian patients with EGFR mutation-positive NSCLC. Plasma samples could be considered for mutation analysis if tumour tissue is unavailable.
%K Gefinitib
%K NSCLC
%K EGFR mutation
%K Caucasian
%K Neoplasias pulmonares
%K Estudios prospectivos
%K Inhibidores de proteína cinasas
%K Receptor del factor de crecimiento epidérmico
%K Antineoplásicos
%K Grupo de ascendencia continental europea
%K Progresión de la enfermedad
%K Supervivencia sin Enfermedad
%K Carcinoma de pulmón de células no pequeñas
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