AMG 386, 20060159 Phase 2, RCC 1st Line in Combination With Sorafenib

Inclusion Criteria:

* Subjects must have a histologically confirmed metastatic RCC with a clear cell component
* Low or intermediate risk according to the Memorial Sloan Kettering Cancer Center (MSKCC) prognostic risk classification.
* Measurable disease with at least one unidimensionally measurable lesion per RECIST guidelines with modifications
* Adequate organ and hematological function as evidenced by laboratory studies conducted at Screening.
* ECOG of 0 or 1

Exclusion Criteria:

Disease Related

* Known history of central nervous system metastases.
* Previous treatment (excluding surgery and palliative radiotherapy) for advanced or metastatic renal cell carcinoma
* Focal radiation therapy for palliation of pain from bony metastases within 14 days of randomization.

Medications

* Currently or previously treated with inhibitors of VEGF.
* Currently or previously treated with inhibitors of angiopoietin or Tie2.
* Currently or previously treated with bevacizumab.

General Medical

* Diagnosis of acute pancreatitis.
* Myocardial infarction, cerebrovascular accident, transient ischemic attack, percutaneous transluminal coronary angioplasty/stent, congestive heart failure, grade 2 or greater peripheral vascular disease, arrhythmias not controlled by outpatient medication, or unstable angina within 1 year prior to randomization
* Major surgery within 30 days before randomization or still recovering from prior surgery
* Uncontrolled hypertension as defined as diastolic \> 90 mmHg OR systolic \>150 mmHg. Anti-hypertensive medications are permitted.

Other

* Other investigational procedures are excluded
* Subject currently is enrolled in or has not yet completed at least 30 days since ending other investigational device or drug study(s), or subject is receiving other investigational agent(s)