Please assess the completion status of the following clinical trial:

Trial Title: Zushima Plaster for Treating Knee Osteoarthritis

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: SINGLE
- Phase: PHASE4
- Number of Arms: 3.0

Eligibility Criteria:
Inclusion Criteria:~* Ages 40-75;~* Unilateral or bilateral knee OA, confirmed radiographically;~* Patients taking oral NSAIDs prior to the breakthrough period will be permitted;~* VAS pain score is or above 20mm.~Exclusion Criteria:~* Knee is swollen and hot;~* Allergic to any ingredient in Girald Daphne Bark Plaster (Girald Daphne Bark, Lithargite, Linseed oil, Red lead) ;~* Congestive Heart Failure and Edema;~* Advanced renal disease;~* Knee joint skin is burst or skin disease or allergies.

- Gender: ALL
- Minimum Age: 40 Years
- Maximum Age: 75 Years
- Healthy Volunteers: f

Study Arms:
- High dose group (Type: ACTIVE_COMPARATOR): High dose of Zushima plaster: a piece of Zushima plaster will be used topically for each knee for 24h per day.~Eligible subjects will use a piece of Zushima plaster topically for each knee for 24h per day.
- Low dose group (Type: ACTIVE_COMPARATOR): Low dose of Zushima plaster: a piece of Zushima plaster will be used topically for each knee for 12h per day.~Eligible subjects will use a piece of Zushima plaster topically for each knee for 12h per day.
- Controlled group (Type: ACTIVE_COMPARATOR): Indometacin Cataplasms will be used topically on the knee for 24h per day

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