Please assess the completion status of the following clinical trial:

Trial Title: Platelet Rich Plasma Injection for Knee Osteoarthritis

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: QUADRUPLE
- Phase: EARLY_PHASE1
- Number of Arms: 4.0

Eligibility Criteria:
Inclusion Criteria:~* stage 1-2-3 symptomatic OA patients according to Kellgren / Lawrence staging~* mean VAS pain score of \>4 of 10 (worst possible pain) over the course of 7 days during the previous month~Exclusion Criteria:~* OA secondary to joint inflammatory diseases,~* generalized OA,~* metabolic diseases of the bone,~* coexisting backache,~* the presence of hematological disease (coagulopathy),~* bilateral symptomatic lesions and advanced stages (grade 4) of OA,~* patients who had received intra-articular injections within 3 months or arthroscopic lavage in the previous 1 year,~* patients who were receiving immunosuppressive,~* patients with current use of anticoagulant medications,~* NSAIDs used in the 5 days before blood donation,~* major axis deviation (more than 15 degree of varus or more than 5 degree of valgus deviation),~* patients with a hemoglobin level less than 11.5 g/dL,~* platelets level less than 100,000/μL,~* associated comorbidities, infection, tumor, crystal arthropathies, anemia, tense joint effusion and pregnancy or possibility of pregnancy.

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

Study Arms:
- PRP group (Type: EXPERIMENTAL): Intraarticular 5 ml single PRP injection
- Saline group (Type: PLACEBO_COMPARATOR): Intraarticular 5 ml single saline injection
- Multiple PRP group (Type: EXPERIMENTAL): Intraarticular 3 dose of 5 ml PRP injection (0, 1, 3 month injection)
- Multiple saline group (Type: PLACEBO_COMPARATOR): Intraarticular 3 dose of 5 ml saline injection (0, 1, 3 month injection)

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