Experimental Drug Can Reverse Osteoarthritis in Weeks, Animal Research Shows

Image: Normal joint, Osteoarthritis and Rheumatoid arthritis. Image credit: Laboratoires Servier via Wikimedia Commons. CC BY-SA 3.0. Article by David Nield. ScienceAlert – April 12, 2026.

The debilitating, chronic loss of joint cartilage known as osteoarthritis causes pain and bone decay for hundreds of millions of people every day, but new help may be on the way – in the form of a simple, single shot. Based on ongoing animal experiments, injecting a carefully engineered, slow-release drug-delivery system into the damaged joint can coax the body’s own cartilage and bone cells to carry out an effective repair job in just a few weeks. […]

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Video: Joints that could heal themselves? Researchers could get there in five years – University of Colorado Boulder