Abstract
8040 Background: Phase III trials have shown that bevacizumab (Avastin, BV), an anti-VEGF monoclonal antibody, prolongs progression-free and overall survival in advanced NSCLC pts. To further define clinical outcomes associated with BV treatment among a broader population of NSCLC pts in a real-world setting, the ARIES OCS was initiated. Pt populations in OCSs are often more reflective of pts encountered in practice, permitting examination of treatment benefit and toxicity in subgroups that might be too small for study in traditional randomized controlled trials (RCTs). The NSCLC cohort in ARIES will assess clinical outcomes in the overall cohort as well as subpopulations such as the elderly, pts with poor PS or pts on concurrent anticoagulants (AC). Methods: Pts with advanced NSCLC whose 1st-line therapy includes BV may enroll. 257 sites are enrolling pts; total accrual of 2000 pts is expected. There are no protocol-specified treatments or assessments. Data is collected at baseline (BL) then quarterly, including targeted adverse events (AEs) and BV-related serious AEs. Clinical outcomes will be descriptively summarized by baseline characteristics. Multivariate analyses will be conducted if cohort size is sufficient. Results: As of 9/15/08, 1518 NSCLC pts have enrolled. Median F/U is 7.5 mos. Key BL characteristics: 20% ≥75 yrs; 67% adenocarcinoma; 10% ECOG ≥2; 8% brain metastasis; 5% therapeutic AC. The most common 1st-line chemotherapy regimen was carboplatin/paclitaxel (64%). Key safety outcomes and cohort size of subpopulations are in the Table . Conclusions: The safety of BV in subpopulations of pts in ARIES (elderly pts, pts with ECOG PS ≥2, with brain mets at BL, or on therapeutic AC) is generally consistent with safety results from RCTs. Updated outcomes analyses will be presented at the meeting for >1600 pts and subpopulations. [Table: see text] [Table: see text]
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