Chemonaive patients ( n = @ ) with stage IIIB/IV nonsquamous non-small-cell lung cancer and Eastern Cooperative Oncology Group performance status @ to @ were randomized ( @:@ ) to pemetrexed-carboplatin-bevacizumab ( pemetrexed arm ) or paclitaxel-carboplatin-bevacizumab ( paclitaxel arm ) .