Amp Orthopedics has announced a clinical trial for a device to treat people with mild to moderate knee pain from osteaoarthritis (OA). The trial is a randomized, sham-controlled, double-blind study of 150 patients aimed to test the safety and effectiveness of the company’s non-thermal pulsed radio frequency (PRF) technology to ameliorate pain. The study is being conducted by Mytrus, a company considered revolutionary in that it directly recruits candidates for trials through the internet using tools such as social media sites. The results of the trial should be published in 2012.