This is a randomized, single-blind, active control study in participants undergoing primary unilateral total knee replacement (TKR). Fifty (50) participants will be randomized 1:1 to receive either a single, 3.5 mL dose of F14 (celecoxib) concurrent with standard of care analgesia, or only standard of care analgesia. F14 will be administered into the joint space at the end of surgery and just prior to wound closing. Safety will be evaluated through recording of adverse events, vital signs, ECG, physical and knee-specific examinations, laboratory blood tests and standing x-rays of the TKR obtained at 3 and 12 months. Post-operative pain will be assessed using visual analog scores (VAS) and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) questionnaires and the Timed Up and Go test. Concomitant medication usage including MSO4 equivalents will be monitored daily for 3 months with participant drug diaries, and at the 12-month visit. Perceived benefit of analgesia will be compared using the Overall Benefit of Analgesic Score (OBAS). The pharmacokinetic profile of celecoxib in plasma will be assessed up to 3 months. Standardized physical therapy will be implemented post-operatively. Follow-up study visits will occur at 1, 2, 3, 4 (phone) and 6 weeks, 3 and 12 months.
The safety and activity of a single, 3.5 mL dose of F14 (celecoxib) concurrent with standard of care analgesia administered following total knee replacement will be compared to standard of care analgesia alone.