Please assess the completion status of the following clinical trial:

Trial Title: Celebrex Total Knee Arthroplasty Study

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: DOUBLE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* The subject is a male or female 18 years or older with osteoarthritis of the knee scheduled to undergo elective unilateral primary total knee arthroplasty because of OA, performed under a standardized regimen of anesthesia and procedure.~Exclusion Criteria:~* Subject has a history of inflammatory arthritis (e.g. rheumatoid arthritis, ankylosing spondylitis) other than osteoarthritis.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 80 Years
- Healthy Volunteers: f

Study Arms:
- Celecoxib (Type: EXPERIMENTAL): Celecoxib
- Placebo (Type: PLACEBO_COMPARATOR): Placebo

Based on this trial design, predict the completion outcome and termination type (if applicable).