Phase 3 Osteoarthritis Trial, Recruiting
Who may be able to join
AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
Who might be able to join this trial:
- You are between 40 and 65 years old and have been diagnosed with primary osteoarthritis (OA) in the inner part of your knee joint
- Your knee osteoarthritis has been rated as moderate in severity (Grade II or III on a standard medical scale)
- The inward bowing of your knee (varus, or "bow-legged" alignment) is no more than 15 degrees
- Your body mass index (BMI) is 30 or below (confirm with trial site if unsure how to calculate this)
- You experience pain of at least 30 out of 100 on a pain scale when walking 15 metres
- If you are a woman who could become pregnant, you are using a reliable form of contraception
Who may not be able to join:
- You have hip osteoarthritis that is severe enough to affect how your knee is assessed
- You have received any injection into the knee joint (such as steroid injections in the last 3 months, or hyaluronic acid/similar products in the last 6 months), or had a knee wash-out or keyhole procedure within the last 6 months
- You have taken steroid tablets or certain joint supplement medicines (such as glucosamine or chondroitin) in the last 3 months
- You are currently taking antidepressants, tranquilisers, antacids, or antibiotics
- You have poor overall health or another condition that would make it difficult for you to attend the hospital regularly
- Your knee pain is caused by an inflammatory condition such as rheumatoid arthritis, psoriatic arthritis, or pseudo-gout
- Your knee pain is caused by a condition other than osteoarthritis (confirm with trial site for specific examples)
- Your joint condition is expected to need surgery within the next year
- You have ongoing diarrhoea (more than 3 bowel movements per day) or regularly use laxatives
- You have serious stomach or bowel problems, or a history of them, such as stomach ulcers, ulcerative colitis, Crohn's disease, diverticulitis, or recurring pancreatitis
- You have reduced kidney function below a certain level (confirm with trial site)
- You have liver disease or abnormal liver test results, or a history of alcoholism affecting the liver
- You have severe disease affecting a major organ (confirm with trial site)
- You have had a heart attack or stroke, have been diagnosed with heart failure, or take a blood-thinning medicine called clopidogrel
- You have diabetes and your long-term blood sugar level (HbA1c) is above 8%
- You have high blood pressure that is not well controlled (above 150/95 mmHg)
- You are pregnant or breastfeeding
- You have taken part in another drug clinical trial in the last 3 months
- You have a known allergy or sensitivity to diacerein (the study drug) or similar substances, or to paracetamol, naproxen, or omeprazole
- You are unable to have an MRI scan — for example, because you have a pacemaker, a certain type of surgical clip, or severe claustrophobia
- The measurement around your lower thigh (knee area) is greater than 50 cm
Important: Always verify eligibility with the trial site directly before applying.
Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.
Contact this trial
Principal Investigator: Nipaporn Jitsook, TRB Chemedica
Phone: +66 (0)2 264 20 10
Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.
GP referral letter
Print a one-page summary to share with your doctor.
Trial details
Where this trial is recruiting
Primary endpoints
Cartilage volume measured by MRI of the affected knee.; Bone marrow lesions measured by MRI of the affected knee.; Synovitis measured by MRI of the affected knee.; Joint space width at narrowest point at medial compartment measured by X-ray (Full extension, weight-bearing position)
Can't join this trial?
Data last synced from ClinicalTrials.gov: 23 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.