This study will include a dose-escalation phase to determine the maximum safe and tolerated dose. This will be followed by a 2-stage Phase II expansion. During Phase II Stage 1, approximately 20 eligible, treated patients will be enrolled. If ≥ 2 patients achieve a tumor response [Partial Response (PR) or Complete Response (CR)]; an additional 15 eligible, treated patients will be enrolled in Stage 2, for a maximum total of 35 eligible, treated patients.