In this study, healthy volunteers will receive a single intravenous dose of either PF-06438179 or infliximab (United States) or infliximab (European Union). During the course of the study, the pharmacokinetics will be assessed by sampling the levels of drug in the blood, and by comparing these levels among the different administration arms of PF-06438179 and the licensed infliximab products. Safety, tolerability, and immunologic response will also be evaluated throughout.

Inclusion Criteria:

• Healthy female subjects of non-childbearing potential and healthy male subjects (healthy is defined as no clinically relevant abnormalities identified by a detailed medical history, full physical examination, including blood pressure and pulse rate measurement, 12-lead ECG and clinical laboratory tests).
• Body Mass Index (BMI) of 17.5 to 32.0 kg/m2; and a total body weight >50kg (110 lbs).

Exclusion Criteria:

• Evidence or history of clinically significant infectious, hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurologic, autoimmune, or allergic disease (including drug allergies, but excluding untreated, asymptomatic, seasonal allergies at time of dosing).
• Previous exposure to a monoclonal antibody, or current use of other biologics.
• History of hypersensitivity reaction to inactive components of the study drugs or any murine proteins or anaphylactic reactions to therapeutic drugs.
• History of tuberculosis (TB) or a positive latent TB test at Screening.