AMG 570

TEAEs were adverse events with an onset after the administration of study treatment. TEAEs were graded using the Common Terminology Criteria for Adverse Events (CTCAE) version 4.0. Grade 2 Moderate; minimal, local or noninvasive intervention indicated; limited age appropriate instrumental activities of daily life (ADL). Grade 3 Severe or medically significant but not immediately life-threatening; hospitalization or prolonged hospitalization indicated; disabling; limited self care ADL. Grade 4 Life-threatening consequences; urgent interventions indicated. Serious adverse events (SAEs) were defined as meeting at least 1 of the following criteria: * Results in death (fatal) * Immediately life-threatening * Requires in-patient hospitalization or prolongation of existing hospitalization * Results in persistent or significant disability/incapacity * Is a congenital anomaly/birth defect * Other medically important serious event

Physical examinations were performed by the investigator, designated physician, or nurse practitioner. A complete physical examination included, at a minimum, assessment of cardiovascular, respiratory, gastrointestinal and neurological systems. A brief physical examination included assessment of the skin, lungs, cardiovascular system, and abdomen (liver and spleen).

Any changes in blood pressure, body temperature, heart rate, and pulse rate that were deemed as clinically significant by the Investigator were reported.

Laboratory safety tests included chemistry, hematology, and urinalysis parameters. Clinically significant laboratory safety tests were any events assessed as CTCAE Grade ≥3 at any post-baseline visit. Grade 3 Severe or medically significant but not immediately life-threatening; hospitalization or prolonged hospitalization indicated; disabling; limited self care ADL. Grade 4 Life-threatening consequences; urgent interventions indicated.

Any changes in ECG parameters that were deemed clinically significant by the Investigator were reported.