6. ECOG (WHO) performance status 0-2. ADDED "only applies to patients enrolled under the original and Amendment 1 protocol versions." 7. Two sub-bullets updated: Potassium, and calcium, within normal limits for the institution. Out of range values should be clinically insignificant. Serum Creatinine ≤ 1.5 x ULN and 24-hour creatinine clearance ≥ 50 mL/min (determined by inputting the serum creatinine result into the Cockcroft-Gault formula).