A Study of First Line Treatment With Avastin (Bevacizumab) in Combination With Carboplatin and Weekly Paclitaxel in Patients With Ovarian Cancer

Progression-free survival was defined as the time from the first administration of any study treatment to the first disease progression using Response Evaluation Criteria In Solid Tumors (RECIST) or death from any cause, whichever occurred first.

An objective response was defined as either a complete response (CR) or a partial response (PR). Using the Response Evaluation Criteria in Solid Tumors (RECIST), a CR was defined as the disappearance of all target lesions and all non-target lesions, normalization of tumor marker level, and no new lesions and a PR was defined as the disappearance of all target lesions and persistence of ≥ 1 non-target lesions and/or the maintenance of tumor marker level above the normal limits, or, at least a 30% decrease in the sum of the longest diameter of target lesions, and no new lesions or unequivocal progression of existing non-target lesions. Only participants with measurable disease were included in the analysis according to RECIST only. Only participants with a Baseline ovarian cancer mucin CA-125 level ≥ 2 times the upper limit of normal who had a ≥ 50% reduction of CA-125 from Baseline were included in the analysis according to CA-125 level.

Duration of response was defined as the interval between the date of the first documented response by RECIST to the date of first disease progression or death, whichever occurred earlier. Disease progression was defined as at least a 20% increase in the sum of the longest diameter of target lesions, taking as reference the smallest sum longest diameter recorded since treatment started or the appearance of 1 or more new lesions or the appearance of 1 or more new lesions and/or unequivocal progression of existing non-target lesions. Only participants with measurable disease were included in the analysis according to RECIST only. Only participants with a Baseline ovarian cancer mucin CA-125 level ≥ 2 times the upper limit of normal who had a ≥ 50% reduction of CA-125 from Baseline were included in the analysis according to CA-125 level.

Reported are the percentage of participants that were alive at 1 year and 2 years after enrolling in the study.

Biological progression-free interval is defined as the interval from the date of the first administration of any study treatment to the date of the first documented serial elevation of the ovarian cancer mucin CA-125. More precisely, this is defined as the first documented increase in CA-125 levels as follows: (1) CA-125 greater than or equal to 2 times the upper level of normal (ULN) on 2 occasions at least 1 week apart (for patients with CA-125 within normal range pre-treatment) or (2) CA-125 greater than or equal to 2 times the ULN on 2 occasions at least 1 week apart (for patients with elevated CA-125 pre-treatment and initial normalisation of CA-125 on-treatment) or (3) CA-125 greater than or equal to 2 times the nadir value, which is the lowest observed CA-125 value per patient on 2 occasions at least 1 week apart (for patients with elevated CA-125 pre-treatment which never normalised).