AEs graded according to Common Terminology Criteria Version 3.0 (CTC v 3.0). AE=any new untoward medical occurrence or worsening of a pre-existing medical condition not necessarily having a causal relationship with this treatment. SAE=any untoward medical occurrence that at any dose results in death, is life-threatening, requires inpatient hospitalization/causes prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, results in development of drug dependency or drug abuse, or is an important medical event.

Laboratory results were graded according to CTC v 3.0. Hematology laboratory evaluations included absolute neutrophil count (ANC), white blood cell count (WBC), platelets (PLT), and hemoglobin (HGB).

Laboratory results were graded according to CTC v 3.0. Clinical laboratory evaluations included liver function (alanine aminotransferase [ALT], Aspartate aminotransferase [AST], alkaline phosphatase, and total bilirubin), and renal function (creatinine).

QTc interval was defined as the measure of the time between the start of the Q wave and the end of the T wave in the heart's electrical cycle, corrected for heart rate

Pharmacokinetics (PK) of ixabepilone were derived from plasma concentration versus time data. Individual patient PK parameter values were derived by standard non-compartmental methods by a validated pharmacokinetic analysis program. PK parameters include Cmax (maximum plasma concentration), Cmin (minimum plasma concentration), Tmax (time of maximum plasma concentration), AUC (0-TAU) (area under the curve in one dosing interval), T-half (plasma half-life).

Tumor assessment was performed according to the Response Evaluation Criteria In Solid Tumors (RECIST) criteria: Complete Response (CR) = disappearance of all clinical and radiological evidence of target lesions; Partial Response (PR) = at least 30% reduction in the sum of the longest diameter of all target lesions; Progressive disease (PD) = at least 20% increase in the sum of the longest diameter of all target lesions; Stable Disease (SD) = neither PR nor PD criteria were met.

Participants received 50 mg/dose for ixabepilone given as 3 oral doses separated by 6 hours (50 mg every 6 hours for 3 doses) on Day 1 of a 21-day cycle for a total dose of 150 mg per cycle.

Total of all reporting groups

Participants received 40 mg/dose for ixabepilone given as 3 oral doses separated by 6 hours (40 mg every 6 hours for 3 doses) on Day 1 of a 21-day cycle for a total dose of 120 mg per cycle.

Participants received 50 mg/dose for ixabepilone given as 3 oral doses separated by 6 hours (50 mg every 6 hours for 3 doses) on Day 1 of a 21-day cycle for a total dose of 150 mg per cycle.

The MTD was defined as the maximum dose which could be given to 6 participants such that not more than 1 participant experienced a DLT (or fewer than one-third if there were more than 6 treated participants) with at least 2 participants experiencing a DLT at the next higher dose level. The R2PD was to be based on the MTD and the assessment of any relevant chronic toxicities.

Due to early study discontinuation, the MTD and RP2D of oral ixabepilone at the scheduled doses used in this study were not determined

AEs graded according to Common Terminology Criteria Version 3.0 (CTC v 3.0). AE=any new untoward medical occurrence or worsening of a pre-existing medical condition not necessarily having a causal relationship with this treatment. SAE=any untoward medical occurrence that at any dose results in death, is life-threatening, requires inpatient hospitalization/causes prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, results in development of drug dependency or drug abuse, or is an important medical event.

All participants who received at least one dose of ixabepilone.

AEs graded according to Common Terminology Criteria Version 3.0 (CTC v 3.0). AE=any new untoward medical occurrence or worsening of a pre-existing medical condition not necessarily having a causal relationship with this treatment. SAE=any untoward medical occurrence that at any dose results in death, is life-threatening, requires inpatient hospitalization/causes prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital anomaly/birth defect, results in development of drug dependency or drug abuse, or is an important medical event.

All participants who received at least one dose of ixabepilone.

Laboratory results were graded according to CTC v 3.0. Hematology laboratory evaluations included absolute neutrophil count (ANC), white blood cell count (WBC), platelets (PLT), and hemoglobin (HGB).

All participants who received at least one dose of ixabepilone.

Laboratory results were graded according to CTC v 3.0. Clinical laboratory evaluations included liver function (alanine aminotransferase [ALT], Aspartate aminotransferase [AST], alkaline phosphatase, and total bilirubin), and renal function (creatinine).

Since study NCT00632424 (CA163-149) was discontinued early due to variability in oral ixabepilone concentrations with the potential to negatively impact both safety and efficacy, liver and renal laboratory data were collected but not summarized.

QTc interval was defined as the measure of the time between the start of the Q wave and the end of the T wave in the heart's electrical cycle, corrected for heart rate

Since study NCT00632424 (CA163-149) was discontinued early due to variability in oral ixabepilone concentrations with the potential to negatively impact both safety and efficacy, QTc data were collected but not analyzed.

Pharmacokinetics (PK) of ixabepilone were derived from plasma concentration versus time data. Individual patient PK parameter values were derived by standard non-compartmental methods by a validated pharmacokinetic analysis program. PK parameters include Cmax (maximum plasma concentration), Cmin (minimum plasma concentration), Tmax (time of maximum plasma concentration), AUC (0-TAU) (area under the curve in one dosing interval), T-half (plasma half-life).

Number of Participants Analyzed =All participants who received any treatment with ixabepilone and had adequate concentration profiles, n=all participants who received ixabepilone and had adequate concentration profiles at the specified time point. Cmax, Cmin, Tmax, AUC (0-TAU), and T-half were not calculated.

Tumor assessment was performed according to the Response Evaluation Criteria In Solid Tumors (RECIST) criteria: Complete Response (CR) = disappearance of all clinical and radiological evidence of target lesions; Partial Response (PR) = at least 30% reduction in the sum of the longest diameter of all target lesions; Progressive disease (PD) = at least 20% increase in the sum of the longest diameter of all target lesions; Stable Disease (SD) = neither PR nor PD criteria were met.

All treated participants who received at least one dose of ixabepilone were evaluable for tumor response.