This is a Phase 1, open-label, dose-escalation trial using standard 3+3 dose-escalation design in patients with advanced malignant solid tumors. The trial will be conducted in multiple dosing cohorts, and evaluated for safety to determine the Maximum Tolerated Dose (MTD) and the Recommended Phase 2 Dose (RP2D). Dose limiting toxicity (DLT) evaluation period is for 4 weeks from the start of treatment Day 1 through Day 28.