AMG 386 Phase 2 Open-Label Renal Cell Carcinoma (RCC) Study 1st Line or After Cytokine Failure in Combination With Sunitinib

AE: any untoward medical occurrence that does not necessarily have a causal relationship with treatment. SAE: an AE that: is fatal; is life threatening; requires in-patient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity; is a congenital anomaly/birth defect; is an other significant medical hazard. Treatment-emergent AEs (TEAEs) are those that occurred after the first administration of study drug through 30 days after the last study drug administration. Severity was graded according to Common Terminology Criteria (CTCAE) version 3.0, as grade 1 (mild), grade 2 (moderate), grade 3 (severe), grade 4 (life-threatening), grade 5 (death).

A trebananib dose was considered delayed if it was administered 11 or more days from the previous trebananib infusion. A sunitinib dose was considered delayed if it was administered 3 or more days from the previous dose, except during holidays.

Participants who had a sunitinib dose modification within 12 weeks from their first dose due to adverse event, laboratory toxicity, or laboratory toxicity and adverse event.

Severity was graded according to Common Terminology Criteria (CTCAE) version 3.0, as grade 1 (mild), grade 2 (moderate), grade 3 (severe), grade 4 (life-threatening), grade 5 (death).

ORR was defined as the percentage of participants with either a confirmed complete response (CR) or partial response (PR) per modified Response Evaluation Criteria in Solid Tumor (RECIST) criteria (responder). A confirmed CR requires 2 consecutive assessments of CR at least 28 days apart. A confirmed PR requires 2 consecutive assessments at least 28 days apart of PR or CR. All participants who did not meet the criteria for an objective response by the analysis cutoff date were considered non responders.

DOR was calculated as the time from the first confirmed objective response to first observed disease progression per modified RECIST v. 1.0 criteria or death due to any cause. DOR was calculated only for participants who had an objective response. Objective response was defined as either a confirmed CR or PR per modified RECIST criteria. A confirmed CR required 2 consecutive assessments of CR at least 28 days apart. A confirmed PR required 2 consecutive assessments at least 28 days apart of PR or CR.

Participants not meeting criteria for progression by the analysis data cutoff date were censored at their last evaluable radiographical disease assessment date.

DCR was defined as the percentage of participants with confirmed CR or PR or stable disease (SD), as defined by modified RECIST v1.0 criteria. A confirmed CR required 2 consecutive assessments of CR at least 28 days apart. A confirmed PR requires 2 consecutive assessments at least 28 days apart of PR or CR. CR or PR was confirmed at least 28 days after the criteria for response were first met. A response assessment of PR or CR that was not subsequently confirmed at least 4 weeks later were included as SD.

PFS was defined as the time from enrollment date to date of disease progression (ie, radiographic progression) per modified RECIST v 1.0 criteria or death. Radiological imaging to assess disease status was performed until participants developed disease progression. Events of radiographic progression per modified RECIST 1.0 that occurred after initiation of subsequent anticancer therapy were not considered PFS events. Deaths occurring after initiation of subsequent anticancer therapy were considered PFS events.

Participants not meeting criteria for progression by the analysis data cutoff date were censored at their last evaluable disease assessment date.

The time from enrollment date to date of death. Participants who had not died by the analysis data cutoff date were censored at their last contact date.

Change in tumor burden was evaluated by the maximum percent reduction from baseline in the SLD of target lesions.

Transient positive results were defined as a positive post-baseline result followed by a negative result at the participant's last time point tested within the study period.