The purpose of this study is to evaluate the efficacy of S (+) - ibuprofen compared to an active treatment for pain control in individuals with at least moderate acute mechanical low back pain.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
At least 50% of maximum pain relief score in Maximum Total Pain Relief (TOTPARmax)
Timeframe: Change from Baseline to 6 hours