This is a prospective, open-label, 2-arm, non-randomized study of CPI-100 in patients with advanced tumors. CPI-100 is administered via intravenous infusion in a 3 + 3 study design to identify the maximum tolerated dose (MTD).

Primary Objectives:

• To determine the safety, tolerability and maximum tolerated dose (MTD) of CPI-100 as once every two weeks (Q2W) and once every three weeks (Q3W) regimens in patients with advanced tumors

Secondary Objectives:

• To evaluate the pharmacokinetics (PK) of CPI-100
• To evaluate clinical response and resolution of symptoms after CPI-100 treatment
• To characterize adverse events of CPI-100 monotherapy and CPI-100 in combination with capecitabine in patients with advanced cancers

Up to 5 dose levels of CPI-100 Q2W, 4 dose levels of Q3W regimen of CPI-100 monotherapy (Q3W Arm A) and 4 dose levels of Q3W regimen of CPI-100 in combination with capecitabine (Q3W Arm B) will be tested in a dose escalation study. MTD will be defined as the dose associated with a dose limiting toxicity (DLT) in less than or equal to 33% of patients at the dose level tested. Dose limiting toxicity (DLT) is defined as one of the following events occurring from the intravenous injection of CPI-100 within 28 days (Q2W) or 42 days (Q3W):

• Grade 4 or greater treatment related adverse events
• Any Grade 3 or greater treatment related non-hematologic, non-dermatologic toxicity (including nausea, vomiting or diarrhea lasting more than 72 hours)

Inclusion Criteria:

• Have a histologically or cytologically confirmed diagnosis of advanced solid tumor
• Have advanced or metastatic disease refractory to standard curative or palliative therapy or contraindication to standard therapy
• Be reasonably recovered from preceding major surgery or no major surgery within 4 weeks prior to the start of Day 1 treatment
• Have a negative pregnancy test for females with child bearing age at screening and should not be breast feeding
• Be willing to abstain from sexual activity or practice physical barrier contraception from study entry to 6 months after the last day of treatment

Exclusion Criteria:

• Have peripheral neuropathy of Grade 3 or Grade 4 at screening
• Have peripheral sensory neuropathy of Grade 2 or greater at screening
• Have an interval from previous neurotoxic drugs less than 3 months unless reasonably recovered from all grades of neurotoxicity to grade 1 or lower as judged by the investigator
• Have known hypersensitivity to chemotherapeutic agents
• Have a history of thrombocytopenia with complications including hemorrhage or bleeding > Grade 2 that required medical intervention or any hemolytic condition or coagulation disorders that would make participation unsafe
• Have unresolved toxicity from previous treatment or previous investigational agents; excluding alopecia
• Is pregnant or breast-feeding

The data will not be shared due to confidentiality agreements