A Study of Avastin (Bevacizumab) Added to a Chemotherapeutic Regimen in Patients With Metastatic Pancreatic Cancer

Duration of overall survival (OS) was defined as the time between date of randomization and date of death due to any cause. Participants without an event were censored at the date last known to be alive. Participants who were randomized but not exposed to study drug and had no further follow up were censored at the date of randomization.

Duration of OS was defined as the time between date of randomization and date of death due to any cause. Participants without an event were censored at the date last known to be alive. Participants who were randomized but not exposed to study drug and had no further follow up were censored at the date of randomization. Median duration of survival was estimated using the Kaplan-Meier method.

PFS was defined as the time between the date of randomization and the date of documented progressive disease (PD) defined according to modified Response Evaluation Criteria in Solid Tumors (RECIST) evaluation, or date of death due to any cause. PD was defined as at least a 20 percent (%) increase in the sum of the longest diameter (LD) of target lesions, taking as reference the smallest sum (LD) recorded since the treatment started. Participants without an event were censored at the date of last follow up for progression, or date of last available tumor assessment if no further follow up assessment for progression was performed. Participants who were randomized but not exposed to study drug and had no further follow up were censored at the date of randomization.

PFS was defined as the time between the date of randomization and the date of documented PD (per RECIST), or date of death due to any cause. Data for participants without an event were censored at the date of last follow up for progression, or date of last available tumor assessment if no further follow up assessment for progression was performed. Participants who were randomized but not exposed to study drug and had no further follow up were censored at the date of randomization. Median PFS was estimated using the Kaplan-Meier method.

Percentage of participants with CR, PR, or SD according to modified RECIST evaluation at the first postbaseline tumor assessment. CR equaled (=) complete disappearance of all target lesions and non-target disease, with normalization of tumor marker level. PR is greater than or equal to (≥) a 30% decrease of the sum of the LD of all target lesions as referenced to the baseline sum LD of all target lesions. Persistence of one or more non-target lesions(s) and/or maintenance of tumor marker level above normal limits. SD=neither sufficient shrinkage of target lesions to qualify for PR nor sufficient increase to qualify for PD with persistence of one or more non-target lesions(s) and/or maintenance of tumor marker level above normal limits.

Blood samples were collected from a subgroup of participants, in selected centers for the determination of bevacizumab serum concentration before the first bevacizumab/placebo exposure (Week 1) and at Weeks 3, 5, 7, and 9. Each time blood samples were collected just (preferably within 1 hour) before the start of the study treatment.