This is a multicenter, open-label, safety, tolerability, pharmacokinetic, and activity study. Eligible subjects will be adults with advanced solid tumor malignancies. In the treatment period groups of 3 to 6 subjects will receive a single dose of oral Oratopo will be administered and will be followed for toxicity. Dose escalation will continue until an MTD is reached, or nonlinear increases in exposure are confirmed, or a maximum dose of Oratopo is reached.
This is a multicenter, nonrandomized, open-label, safety, tolerability and pharmacokinetic (PK) study to determine the MTD and optimal dosing of Oratopo. No control group has been included.