Phase I Study of CBP501 and Cisplatin in Patients With Advanced Refractory Solid Tumors

CBP501 is given IV on Day 1 of each cycle (every 21 days). Dose escalation of CBP501 and cisplatin will be starting doses of 3.6 mg/m² CBP501 and 50 mg/m² cisplatin (Dose Level 1). Step 1, if during the first 2 cycles, at least 2 out of 3 to 6 patients experience Dose Limiting Toxicity (DLT) at 50 mg/m² cisplatin, then the cisplatin dose will be de-escalated to 30 mg/m². If no more than 1 out of 6 patients experiences DLT, cisplatin dose will be escalated to 75 mg/m². Step 2, dose escalation will be performed using the cisplatin MTD, with escalating CBP501 doses. CBP501 dose escalation will take place until the MTD has been defined or 74 mg/m² is reached.