by John Ready, Yale University
edited by Lisa Lock, reviewed by Robert Egan
Schematic illustration of the delivery routes and cartilage-protective mechanisms of LCM in osteoarthritis. Credit: Bioactive Materials (2026). DOI: 10.1016/j.bioactmat.2026.02.045
For millions of people living with osteoarthritis, daily life can involve a frustrating cycle of pain and stiffness. While current treatments like over-the-counter medications or steroid injections can temporarily dull the ache, they do not stop the joint from deteriorating. A Yale study published in the journal Bioactive Materials found that the medication lacosamide acts as a highly effective, dual-purpose treatment that relieves joint pain and reverses cartilage damage in osteoarthritis, especially when a specialized hydrogel delivers the drug directly into the joint.
Understanding osteoarthritis
Osteoarthritis is commonly described as a wear and tear condition, but the phrase oversimplifies the complex biological process that scientists are working to better understand.
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Inside the joint, specialized cells called chondrocytes are constantly balancing two opposing tasks: building new cartilage and breaking down old tissue. This delicate balance is disrupted when osteoarthritis is present. Destructive forces begin to take over, and cartilage loss speeds up until bones begin to rub against each other. Over time, this progression can create the need for joint reconstruction surgery such as a total knee replacement.
“There is a major unmet need in osteoarthritis,” says the study’s principal investigator and Charles W. Ohse Professor of Orthopedics & Rehabilitation, Chuan-Ju Liu, Ph.D… “We need therapies that don’t just mask pain but actually change how the disease progresses.”
There is currently no FDA-approved medicine that can both halt this pain and prevent the structural cartilage from breaking down. However, a new study led by Liu points to a different strategy that could both protect joint tissue and reduce pain at the same time.
By repurposing an existing medication and delivering it through a high-tech smart gel, researchers have discovered a way to potentially protect joints and provide long-lasting relief without the need for addictive opioids.
More details at;
https://medicalxpress.com/news/2026-06-hydrogel-relieves-osteoarthritis-pain-cartilage.html