Study of the Safety and Tolerability of Oral Capsule Form of PCI-24781 in Advanced Cancer Patients

"Up to 7 cohorts will receive PCI-24781 orally at doses starting at 30 mg/m2 three times a day approximately 4 hours apart (TID), up to 90 mg/m2, administered 5 days/week during the first 21 days of each 28 day cycle until MTD is reached. If a dose limiting toxicity (DLT) occurs, then the next cohort will receive PCI-24781 twice a day approximately 4 hours apart (BID). If a DLT occurs on the BID schedule, the subsequent cohort will receive PCI-24781 BID for 7 days every other week (2 times in a 28 day cycle). If a DLT occurs on this dosing schedule, then the next cohort will receive PCI-24781 BID for 5 days/week every other week (2 times in a 28 day cycle) until the maximum tolerated dose is reached."