Please assess the completion status of the following clinical trial:

Trial Title: Study on Efficacy and Safety of Chondroitin Sulfate + Glucosamine Hydrochloride Versus Celecoxib in Knee Osteoarthritis

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

Eligibility Criteria:
Inclusion Criteria:~* At least 40 years of age~* Primary OA of the knee according to the American College of Rheumatology (ACR) criteria~* OA of radiological stages II or III according to Kellgren and Lawrence~* Patients with moderate-severe knee pain~Exclusion Criteria:~* Subjects with active malignancy of any type or history of a malignancy within the last five years~* Concurrent arthritic disease (antecedents and/or current signs) that could confound or interfere with the evaluation of pain efficacy such as chondrocalcinosis, Paget's disease of the ipsilateral limb to the target knee, rheumatoid arthritis, aseptic osteonecrosis, gout, septic arthritis, ochronosis, acromegaly, haemochromatosis, Wilson's disease, osteochondromatosis seronegative spondylo-arthropathy, mixed connective tissue disease, collagen vascular disease, psoriasis, inflammatory bowel disease~* Pain in other parts of the body greater than the knee pain that could interfere with the evaluation of the index joint~* Patients with fibromyalgia~* Subjects with a history of heart attack or stroke, or who have experienced chest pain related to heart disease, or who have had serious diseases of the heart~* Subjects with high risk of cardiovascular (CV) events~* Subjects with any active acute or chronic infections requiring antimicrobial therapy, or serious viral (e.g., hepatitis, herpes zoster, HIV positivity) or fungal infections~* Subjects with a history of recurrent Upper Gastrointestinal (UGI) ulceration or active inflammatory bowel disease (e.g., Crohn's disease or ulcerative colitis), a significant coagulation defect~* Subjects who have been diagnosed as having or have been treated for oesophageal, gastric, pyloric channel, or duodenal ulceration within 30 days prior to receiving the first dose of study medication~* Washout period for OA treatments before beginning the study.

- Gender: ALL
- Minimum Age: 40 Years
- Maximum Age: None
- Healthy Volunteers: f

Study Arms:
- Chondroitin/Glucosamine (Droglican) (Type: EXPERIMENTAL): Active ingredients: Chondroitin sulfate, 200 mg and Glucosamine hydrochloride 250 mg.~Pharmacotherapeutic group: Other specific antirheumatic agents. Anatomical Therapeutic Chemical Classification System (ATC) code: M01CX.
- Celecoxib (Type: ACTIVE_COMPARATOR): Active ingredient: Celecoxib, 200 mg. Pharmacotherapeutic group: Coxibs. ATC code: M01AH.

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