This laser has been FDA market cleared for the treatment of chronic low back pain in a double blind, placebo-controlled, randomized, parallel group, multi-center clinical trial to effectively treat this painful condition. The participants of the showed a 58% pain reduction at 2 month follow-up evaluation. This trial went on to demonstrate that the FX 635 is successful in the treatment of chronic low back pain. The recent clearance of the FX 635 is groundbreaking for the pain management community and the war on opioids.