A Study to Evaluate the Efficacy and Safety of Reslizumab (0.3 or 3.0 mg/kg) as Treatment for Patients (12-75 Years of Age) With Eosinophilic Asthma

Inclusion Criteria:

• The patient is male or female, 12 through 75 years of age, with a previous diagnosis of asthma. Patients 12 through 17 years of age are excluded from participating in India and Argentina; patients 66 through 75 years of age are excluded from participating in India.
• The patient has an ACQ score of at least 1.5.
• The patient has airway reversibility of at least 12% to beta-agonist administration at screening.
• The patient is currently taking fluticasone at a dosage of at least 440 μg daily (or equivalent). Patients' baseline asthma therapy regimens must be stable for 30 days before screening, and continue without dosage changes throughout study.
• The patient has a blood eosinophil count of at least 400/μL.
• Female patients must be surgically sterile, 2 years postmenopausal, or must have a negative pregnancy test ßHCG at screening (serum) and baseline (urine).
• Female patients of childbearing potential (not surgically sterile or 2 years postmenopausal), must use a medically accepted method of contraception and must agree to continue use of this method for the duration of the study and for 30 days after participation in the study.
• Written informed consent is obtained. Patients 12 through 17 years old, where participating, need to provide assent in accordance with local standards.

Exclusion Criteria:

• The patient has a clinically meaningful comorbidity that would interfere with the study schedule or procedures, or compromise the patient's safety.
• The patient has known hypereosinophilic syndrome.
• The patient has another confounding underlying lung disorder (eg, chronic obstructive pulmonary disease, pulmonary fibrosis, or lung cancer). The patient has other pulmonary conditions with symptoms of asthma and blood eosinophilia (eg, Churg-Strauss syndrome, allergic bronchopulmonary aspergilosis).
• The patient is a current smoker (ie, has smoked within the last 6 months prior to screening).
• The patient has a history of use of systemic immunosuppressive or immunomodulating agents (anti-IgE mAb, methotrexate, cyclosporin, interferon-α, or anti-tumor necrosis factor mAb) within 6 months prior to study entry (randomization).
• Female patients who are pregnant, or nursing, or, if of childbearing potential and not using a medically accepted, effective method of birth control (eg, spermicide, abstinence, IUD, or steroidal contraceptive [oral, transdermal, implanted, and injected] in conjunction with a barrier method) are excluded from this study.
• The patient has a current infection or disease that may preclude assessment of asthma.
• The patient has a history of concurrent immunodeficiency (human immunodeficiency, acquired immunodeficiency syndrome, or congenital immunodeficiency). Patients in Argentina must have documented serology testing for human immunodeficiency virus (HIV) performed during screening.
• The patient has presence of or suspected parasitic infestation/infection.
• Patients may not have received any live attenuated vaccine within the 12-week period before study entry.
• The patient has a history of allergic reactions to or hypersensitivity to any component of the study drug.