Study of Modified Release Metaxalone 640 mg for Treating Acute Lower Back Pain and Sciatica with Spinal Stenosis

What this Trial Is About

Researchers are evaluating whether a modified version of metaxalone 640 mg can reduce pain in adults aged 18 to 80 years who have newly occurring low back or leg pain due to acute lumbosacral musculoskeletal conditions with spinal stenosis and sciatica. This study is a phase 4, double-blind, randomized, placebo-controlled trial designed to compare the effects of the active drug with a placebo. The goal is to understand the impact on pain levels, physical activity, and sleep interference. Participants will be randomly assigned to receive either metaxalone 640 mg capsules or inactive placebo capsules. Both treatments are taken orally every six hours for seven days alongside standard care. The study includes an initial pilot phase followed by a larger randomized phase to ensure proper evaluation with adequate participant numbers. During the study, participants will complete surveys on day 1 before starting treatment and again seven days later to report on pain amount and quality, as well as how pain affects their physical activities and sleep. Researchers will monitor changes in pain using the Numeric Pain Scale from day 1 to day 7. The total participation involves these assessments and treatment over the one-week period with attention to any safety or health changes.

Efficacy of M640 in Acute Lumbosacral Musculoskeletal Conditions.