- For the phase I portion of the study patients must have cytologically or histologically proven advanced solid tumors for which there is no standard effective therapy available. For the phase II portion patients must have cytologically or histologically proven selected stage IIIB (pleural effusion) or IV NSCLC. Patients with NSCLC that have progressed or recurred after first-line therapy for stage IIIA or IIIB may also be considered.