Study of JNJ-39758979 in Symptomatic Adult Patients With Uncontrolled Asthma

Inclusion Criteria: * Has a diagnosis of asthma for at least 6 months before screening. -Has been receiving inhaled corticosteroids (≤ 1000 µg fluticasone or its equivalent) alone or in conjunction with long-acting Beta 2-agonist (salmeterol, formoterol, etc.) and/or montelukast. * Have an ACQ score ≥ 1.5 at screening. - Must be healthy and medically stable on the basis of physical examination, medical history, vital signs, and 12-lead electrocardiogram (ECG) performed at screening * Must be post-menopausal or if pre-menopausal, must use an acceptable method of birth control. Exclusion Criteria: * Has ever had a life-threatening asthma attack including respiratory arrest, intubation, or intensive care unit admission due to asthma. -Has a history of any other chronic respiratory condition including chronic obstructive pulmonary disease, bronchiolitis, bronchiectasis, allergic bronchopulmonary aspergillosis (mycosis), occupational asthma, sleep apnea or pulmonary hypertension.-Has initiated or discontinued allergen immunotherapy within 12 weeks of screening. -Has smoked within 3 years of screening or has a history of smoking ≥ 10 pack years (1 pack year = 20 cigarettes smoked per day for 1 year) or equivalent, or a positive urine cotinine test at Screening. -Has any known malignancy or has a history of malignancy with the exceptions of basal cell carcinoma or squamous cell carcinoma. -Has chronic or recurrent infectious disease, including, but not limited to: active tuberculosis.-Has a clinically significant, acute respiratory infection within 4 weeks of screening. -Has had a substance abuse (drug or alcohol) problem within the previous 3 years.