Safety And Efficacy Analysis By Histology Of Weekly Nab-Paclitaxel In Combination With Carboplatin As First- Line Therapy In Patients (Pts) With Advanced Non-Small Cell Lung Cancer (Nsclc).

7592 Background: Treatment of advanced NSCLC differs by histology, with fewer options and poorer outcomes in pts with squamous histology. In a phase III trial of nab-paclitaxel (nab-P, 130 nm albumin-bound paclitaxel particles) + carboplatin (C) vs solvent-based paclitaxel (sb-P) + C, the primary endpoint of ORR was significantly improved from 25% to 33%, p = 0.005, with a 1-month improvement in OS (p = NS) and improved safety. This analysis evaluated efficacy and safety by histology. Methods: Pts with untreated stage IIIB/IV NSCLC were randomized 1:1 (stratified by age, histology, region, stage, and gender) to C AUC 6 day 1 and either nab-P 100 mg/m2 on days 1, 8, 15 or sb-P 200 mg/m2 day 1 q 21 days. ORR and PFS were determined by blinded centralized review. Results: In squamous pts, nab-P/C produced a significantly higher ORR (41% vs 24%, p 1-month improvement in OS (10.7 vs 9.5 mo, HR: 0.890) vs sb-P/C (Table). nab-P/C was as effective as sb-P/C in...