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7121 The combinations of cisplatin (C) with gemcitabine (G) and/or vinorelbine (V) have shown to be effective and safe regimens in the first line treatment of NSCLC. This study has been designed to detect a 25% increase in objective response measured by CT scan with the triplet combination (CGV) with respect to cisplatin/gemcitabine combination (CG) administered as neo-adjuvant therapy in patients with radically-treatable stage III NSCLC. With 80% of power and one-sided 5% significant level, the simple size required to confirm this hypothesis is 75 evaluable patients in each arm of treatment. Patients (pts) ≤ 75 years old, Karnofsky index ≥ 70% and adequate haematological, renal and hepatic function are stratified by stage (IIIA versus IIIB) and randomly assigned to: C 50 mg/m2 i.v. and G 1250 mg/m2 i.v. d1 and d8 alone (CG) or in combination with V 25 mg/m 2 i.v. d1 and d8 (CGV) both regimens every 3 weeks for 3 consecutive cycles followed by definitive local treatment (LT). From December 1999 to December 2005, a hundred and forty-nine pts have been randomised (CG/CGV); median age 58/58; median Karnofsky index 80/80; stage IIIA 24/26; stage IIIB 51/48; squamous 37/39; adenocarcinoma 31/32; anaplastic 7/3. Major haematological toxicities grade 3–4 were (CG/CGV; %); Anaemia (5/5) neutropenia (31/34); thrombocytopenia (4/5). Two pts in CG (2.7%) and 4 in CGV arm (5.5%) developed neutropenic fever. Major non-haematological toxicities grade 2–3 were: N/Vomiting (31/32) and fatigue (12/20). Global recurrences have been registered in 57% and 54% of pts treated with CG and CGV arm respectively. Exclusive local/ distant failure (%) has been 16/23 in CG and 23/18 in CGV arm. Preliminary results show similar high efficacy associated with moderate toxicity in both groups of treatment. The study is continuing. [Table: see text] No significant financial relationships to disclose.

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