Determination of the severity of adverse events was according to the following: grade 1 = mild (eg, asymptomatic or mild symptoms); grade 2 = moderate (eg, minimal intervention indicated or interferes with activity); grade 3 = severe (eg, medically significant but not immediately life-threatening, prevents daily activity, or requires treatment); grade 4 = life-threatening (ie, refers to an event in which the participant was, in the view of the investigator, at risk of death at the time of the event); and grade 5 = fatal. A serious adverse event was defined as an adverse event that met at least 1 of the following criteria: * fatal * life threatening * required in patient hospitalization or prolongation of existing hospitalization * resulted in persistent or significant disability/incapacity * congenital anomaly/birth defect * other medically important serious event.