The purpose of this research study is to find out more information relating to the highest dose of KCP-330 that can be given safely and side effects it may cause, to examine how the body affects KCP-330 concentrations in the blood (pharmacokinetics or PK), to examine the effects of KCP-330 on the body (pharmacodynamics or PDn) and to obtain information on its effectiveness in treating cancer.
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Number of Participants With Treatment-Emergent Adverse Events (TEAEs) and Treatment-Emergent Serious Adverse Events (TESAEs)
Timeframe: From first dose of study drug administration to end of treatment (up to 27 months)
Recommended Phase 2 Dose (RP2D) of Selinexor
Timeframe: From first dose of study drug administration to end of treatment (up to 27 months)