A Study to Evaluate Lebrikizumab (MILR1444A) in Adult Patients With Asthma Who Are Not Taking Inhaled Corticosteroids

Inclusion Criteria: * Body weight ≥ 50 kg and ≤ 150 kg at Visit 1 * Chest radiograph within 12 months of Visit 1 without evidence of a clinically significant abnormality * Stable asthma Exclusion Criteria: * Asthma exacerbation during screening * Known malignancy * Known immunodeficiency * Pre-existing lung disease other than asthma * Uncontrolled clinically significant medical disease * Current smoker * History of substance abuse that may impair or risk the patient's full participation in the study, in the judgment of the investigator * Prior allergic reaction to a monoclonal antibody * Patients (men and women) of reproductive potential who are not willing to use contraception * Pregnancy