Study With AG-013736 Combined With Chemotherapy And Bevacizumab In Patients With Metastatic Colorectal Cancer

Percentage of participants with objective response (OR) based assessment of confirmed complete response(CR) or confirmed partial response (PR) according to Response Evaluation Criteria in Solid Tumors (RECIST). Confirmed CR defined as disappearance of all lesions and no appearance of new lesions. Confirmed PR defined as >=30 percent (%) decrease in sum of the longest dimensions (LD) of the target lesions taking as reference the baseline sum LD , without progression of nontarget lesions and no appearance of new lesions. Confirmed responses are those that persist on repeat imaging study >=4 weeks after initial documentation of response.

Area under the plasma concentration time-curve from zero to the last measured concentration (AUClast). Pharmacokinetic (PK) parameters of axitinib (AG-013736) were combined for Cohorts 1, 2, and 3. AUClast for axitinib in absence of bevacizumab + FOLFOX was estimated from Cycle 1 Day 8 data and in presence of bevacizumab + FOLFOX was estimated from Cycle 2 Day 1 data. Results were normalized to axitinib 5 mg dose.

AUC (0 - ∞)= Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0 - ∞). It was obtained from AUC (0 - t) plus AUC (t - ∞). PK parameters of axitinib (AG-013736) were combined for Cohorts 1, 2, and 3. AUC (t - ∞] for axitinib in absence of bevacizumab + FOLFOX was estimated from Cycle 1 Day 8 data and in presence of bevacizumab + FOLFOX was estimated from Cycle 2 Day 1 data. Results were normalized to axitinib 5 mg dose.

PK parameters of axitinib (AG-013736) were combined for Cohorts 1, 2, and 3.Cmax for axitinib (AG-013736) in absence of bevacizumab + FOLFOX was estimated from Cycle 1 Day 8 data and in presence of bevacizumab + FOLFOX was estimated from Cycle 2 Day 1 data. Results were normalized to axitinib 5 mg dose.

Clearance (CL) of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed (F). Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the blood. PK parameters of axitinib (AG-013736) were combined for Cohorts 1, 2, and 3. CL/F for axitinib (AG-013736) in absence of bevacizumab + FOLFOX was estimated from Cycle 1 Day 8 data and in presence of bevacizumab + FOLFOX was estimated from Cycle 2 Day 1 data.

Plasma decay half-life (t1/2) is the time measured for the plasma concentration to decrease by one half. PK parameters of axitinib (AG-013736) were combined for Cohorts 1, 2, and 3. t1/2 for axitinib in absence of bevacizumab + FOLFOX was estimated from Cycle 1 Day 8 data and in presence of bevacizumab + FOLFOX was estimated from Cycle 2 Day 1 data.

Area under the plasma concentration time-curve from zero to the last measured concentration (AUClast). PK parameters of oxaliplatin, assessed by estimating total platinum in plasma ultrafiltrate, were combined for Cohorts 1, 2, and 3. AUClast for oxaliplatin in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data. Results were normalized to Cycle 1 Day 1 oxaliplatin dose.

AUC (0 - ∞)= Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0 - ∞). It was obtained from AUC (0 - t) plus AUC (t - ∞). PK parameters of oxaliplatin, assessed by estimating total platinum in plasma ultrafiltrate, were combined for Cohorts 1, 2, and 3. AUC (0 - ∞) for oxaliplatin in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data. Results were normalized to Cycle 1 Day 1 oxaliplatin dose.

PK parameters of oxaliplatin, assessed by estimating total platinum in plasma ultrafiltrate, were combined for Cohorts 1, 2, and 3. Cmax for oxaliplatin in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data. Results were normalized to Cycle 1 Day 1 oxaliplatin dose.

CL is a quantitative measure of the rate at which a drug substance is removed from the body. PK parameters of oxaliplatin, assessed by estimating total platinum in plasma ultrafiltrate, were combined for Cohorts 1, 2, and 3. CL for oxaliplatin in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data.

Plasma decay half-life (t1/2) is the time measured for the plasma concentration to decrease by one half. PK parameters of oxaliplatin, assessed by estimating total platinum in plasma ultrafiltrate, were combined for Cohorts 1, 2, and 3. t1/2 for oxaliplatin in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data.

Area under the plasma concentration time-curve from zero to the last measured concentration (AUClast). PK parameters of 5-FU were combined for Cohorts 1, 2, and 3. AUClast for 5-FU in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data. Results were normalized to Cycle 1 Day 1 5-FU dose.

AUC (0 - ∞)= Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0 - ∞). It was obtained from AUC (0 - t) plus AUC (t - ∞). PK parameters of 5-FU were combined for Cohorts 1, 2, and 3. AUC (0 - ∞) for 5-FU in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data. Results were normalized to Cycle 1 Day 1 5-FU dose.

PK parameters of 5-FU were combined for Cohorts 1, 2, and 3. Cmax for 5-FU in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data. Results were normalized to Cycle 1 Day 1 5-FU dose.

CL is a quantitative measure of the rate at which a drug substance is removed from the body. PK parameters of 5-FU were combined for Cohorts 1, 2, and 3. CL for 5-FU in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data.

Plasma decay half-life (t1/2) is the time measured for the plasma concentration to decrease by one half. PK parameters of 5-FU were combined for Cohorts 1, 2, and 3. t1/2 for 5-FU in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data.

Area under the plasma concentration time-curve from zero to the last measured concentration (AUClast). AUClast for irinotecan in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data. Results were normalized to Cycle 1 Day 1 irinotecan dose.

AUC (0 - ∞)= Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0 - ∞). It was obtained from AUC (0 - t) plus AUC (t - ∞). AUC (0 - ∞) for irinotecan in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data. Results were normalized to Cycle 1 Day 1 irinotecan dose.

Cmax for irinotecan in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data. Results were normalized to Cycle 1 Day 1 irinotecan dose.

CL is a quantitative measure of the rate at which a drug substance is removed from the body. CL for irinotecan in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data.

Plasma decay half-life (t1/2) is the time measured for the plasma concentration to decrease by one half. t1/2 for irinotecan in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data.

Area under the plasma concentration time-curve from zero to the last measured concentration (AUClast). PK parameters of bevacizumab were combined for Cohorts 1, 2, and 3. AUClast for bevacizumab in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data. The bevacizumab pharmacokinetic parameters were normalized to 1 mg/kg dose.

AUC (0 - ∞)= Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0 - ∞). It was obtained from AUC (0 - t) plus AUC (t - ∞). PK parameters of bevacizumab were combined for Cohorts 1, 2, and 3. AUC (0 - ∞) for bevacizumab in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data. The bevacizumab pharmacokinetic parameters were normalized to 1 mg/kg dose.

PK parameters of bevacizumab were combined for Cohorts 1, 2, and 3. Cmax for bevacizumab in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data. The bevacizumab pharmacokinetic parameters were normalized to 1 mg/kg dose.

CL is a quantitative measure of the rate at which a drug substance is removed from the body. PK parameters of bevacizumab were combined for Cohorts 1, 2, and 3. CL for bevacizumab in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data.

Plasma decay half-life (t1/2) is the time measured for the plasma concentration to decrease by one half. PK parameters of bevacizumab were combined for Cohorts 1, 2, and 3. t1/2 for bevacizumab in absence of axitinib was estimated from Cycle 1 Day 1 data and in presence of axitinib was estimated from Cycle 2 Day 1 data.

Time in days from the first documentation of objective tumor response to objective tumor progression or death due to any cancer. Duration of tumor response was calculated as the date of the first documentation of objective tumor progression or death due to cancer minus the date of the first CR or PR that was subsequently confirmed plus 1. DR was calculated for the subgroup of participants with a confirmed objective tumor response. CR: disappearance of all lesions and no appearance of new lesions. PR: >=30% decrease in sum of LD of target lesions taking as reference the baseline sum LD, without progression of nontarget lesions and no appearance of new lesions. Progression: >=20% increase in sum of LD of target lesions taking as references the smallest sum LD recorded since treatment start, unequivocal progression of existing nontarget lesions, or appearance of new lesions, occurrence of pleural effusion/ascites, substantiated by cytologic investigation.

Time in days from date of randomization to first documentation of objective tumor progression or death due to any cause. PFS was calculated as first event date minus the date of first dose of study medication plus 1. Tumor progression was determined from oncologic assessment data (where data meet the criteria for progressive disease [PD]), or from adverse event (AE) data (where the outcome was "Death"). Progression: >=20% increase in sum of LD of target lesions taking as references the smallest sum LD recorded since treatment start, unequivocal progression of existing nontarget lesions, or appearance of new lesions, occurrence of pleural effusion/ascites, substantiated by cytologic investigation.

TTF is defined as the time from the randomization to the date of the first documentation of PD, symptomatic deterioration, death due to any cause, or treatment discontinuation due to adverse event, refusal or other reasons. Progression: >=20% increase in sum of LD of target lesions taking as references the smallest sum LD recorded since treatment start, unequivocal progression of existing nontarget lesions, or appearance of new lesions, occurrence of pleural effusion/ascites, substantiated by cytologic investigation.

Time in days from randomization date to date of death due to any cause. OS was calculated as the death date minus the date of first dose of study medication plus 1. Death was determined from adverse event data (where outcome was death) or from follow-up contact data (where the participant current status was death).

PROs included assessment of symptom severity and interference which were measured using M.D. Anderson Symptom Assessment Inventory-Diarrhea (MDASI-D), 20-item questionnaire which assesses the severity of 14 symptoms over the past 24 hours, as well as symptoms interference with 6 areas of function (e.g., walking, work, mood), when the symptom was "at its worst". Each item is scored from 0 to 10, with '0' indicating that the symptom was either not present or did not interfere with their activities, and '10' indicating that the symptom was "as bad as you can imagine" or "interfered completely" with their life. The 2 subscales, symptom severity score and symptom interference score were average of respective items and ranged from 0 to 10, higher score indicating greater severity or interference of symptoms.