Inflammatory arthritis or gout/pseudo-gout with an acute flare within the past 2 years (subjects with fibrositis or fibromyalgia will not be excluded)

Received acetaminophen within 24 hours of the baseline visit

Acute joint trauma at index joint within the past 3 months with active symptoms

History of gastrointestinal (GI) perforation, obstruction, or bleeding

Diagnosed or treated for GI ulcer within 60 days prior to first dose of study medication

Received corticosteroids or hyaluronic acid within certain timeframe before study

Safety and Efficacy of Celecoxib Versus Naproxen in the 6-month Treatment of Knee Osteoarthritis

What this study is about