Polyarticular arthritis

This study is testing a new knee replacement system called Persona Revision for people who need a second knee replacement surgery. The goal is to see if it improves knee function, reduces pain, and is safe. About 380 adults will be followed for two years after surgery.

This study compares two types of hip replacement materials in 100 adults aged 18 to 65 who need a total hip replacement. One group gets a ceramic-on-polyethylene implant where the polyethylene is infused with vitamin E to reduce wear. The other group gets a standard ceramic-on-ce…

This study tests whether sleeping near a special device that claims to emit 'biophotons' can reduce chronic severe arthritis pain. About 102 adults with long-term arthritis pain will use either the active device or a placebo (inactive) device for 12 weeks. Researchers will measur…

This study tests two ways to manage pain after hip replacement surgery. One group gets a nerve block plus a second nerve block; the other gets a nerve block plus wound numbing. The goal is to see which method reduces pain and the need for opioid painkillers. About 102 adults havi…

This study tests whether eating freeze-dried wild blueberry powder every day for 12 weeks can improve gut health, reduce inflammation, and ease joint pain in adults with arthritis. Fifty participants will take either the blueberry powder or a placebo, with a 2-week break between …

This study will follow 200 people who have had a complex or revision hip replacement at University Hospitals Leuven. The goal is to track how many need another surgery and why, and to improve care by learning from real-world results. No new treatment is being tested—this is an ob…

This study looks at whether sulfasalazine, a drug for inflammatory arthritis, makes the standard diabetes blood test (HbA1c) falsely low. That could mean diabetes goes undiagnosed or is undertreated in these patients. Researchers will use continuous glucose monitors and fasting b…

This study is creating a large collection of joint fluid and blood samples from 500 people with different types of arthritis. Researchers will use these samples to test new biomarkers that could help diagnose arthritis earlier and monitor how the disease changes over time or with…

This study looks at how often people can return to sports at least three years after total knee replacement. It compares three different types of knee prostheses to see if one type leads to better sports participation. The study will include 660 adults who had their first knee re…