Lead Sponsor

Ramathibodi Hospital

Age

50 - No limit years

Sex

ALL

Healthy Volunteers

No

•Adult patients age 50 years or older who have been diagnosed as primary or secondary osteoarthritis of the knee base on clinical criteria of American College of Rheumatology
•Clinical diagnosis of primary osteoarthritis
•Mild deformity Clinical (having no varus or valgus deformity, no crepitus) ? Physical examination grade 0 assessed by stress test Radiographic assessment (Kellgrane-lawrance type II-III), a minimum baseline medial tibiofemoral JSW of \_2 mm.
•Willing to participate and provide written informed consent

•Non-secondary osteoarthritis Rheumatoid arthritis, inflammatory arthritis (e.g. SLE, Gout), post traumatic osteoarthritis, those who received intra-articular treatment of the signal joint with any product (corticosteroids in the previous 2 months, or glycosaminoglycans/hyaluronic acid in the previous 6 months) or had undergone joint lavage andarthroscopic procedures in the previous 6 months.
•No contraindication of using diacerein and glucosamine
•Non-current or ex-users of oral SYSADOA (e.g., glucosamine sulphate, chondroitin sulphate, diacerein, piascledine), anti-depressants, tranquillisers, antacids or antibiotics known hypersensitivity to diacerein, to similar compounds, to the excipients or to paracetamol

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