Efficacy and Safety of Tofacitinib in Subjects With Active Ankylosing Spondylitis (AS)

Inclusion Criteria:

- Has a diagnosis of Ankylosing Spondylitis (AS) based on the Modified New York Criteria
for AS (1984).

- Must have a radiograph of SI joints (AP Pelvis) documenting diagnosis of AS.

- Has active disease despite nonsteroidal anti-inflammatory drug (NSAID) therapy or
intolerant to NSAIDs.

Exclusion Criteria:

- History of known or suspected complete ankylosis of the spine.

- History of allergies, intolerance or hypersensitivity to lactose or tofacitinib.

- History of any other rheumatic disease.

- Any subject with condition affecting oral drug absorption.