A Study of the Effectiveness and Safety of Tramadol HCl/Acetaminophen Compared to Placebo in Treating Acute Low Back Pain
Back Pain, Low Back Pain
About this trial
This is an interventional treatment trial for Back Pain focused on measuring Pain, Acute Low Back Pain, Back, Lower back
Eligibility Criteria
Inclusion Criteria: Symptomatic with acute low back pain, with or without radiating pain no lower than the knee, for 2 to 10 days Average acute low back pain score in the last 24 hours of >= 5 on an 11-point scale at Visit 1 In generally good health If female of childbearing potential, using an acceptable method of birth control Exclusion Criteria: No use of ibuprofen, acetaminophen, or aspirin within 6 hours of the first dose of study medication No use of any other prescription or over-the-counter medication for pain within 24 hours of the first dose of study medication No use of medications for epilepsy or depression in the past 3 weeks No use of steroids within 3 months of study entry or any other long-term treatment with steroids No use of of tramadol HCl, tramadol HCl/acetaminophen, or any other oral opioid or opioid combination during the course of the current episode of acute low back pain No use of transcutaneous electrical nerve stimulation (TENS) unit within 2 weeks of study entry No use of an investigational drug in past 30 days No use of botulinum toxin for the treatment of back pain within 3 months No chronic continuous back pain or acute pain on top of chronic back pain No acute low back pain associated with chills or fever No pain below the knee No neurological signs, such as muscle weakness No risk of spinal infection No worsening of pain when lying down No history of significant medical conditions No need for urgent evaluation of the spine by neuroimaging No treatment during this episode by a chiropractor, physical therapy, massage, acupuncture, or Reiki treatments No current litigation over back pain No back pain related to a motor vehicle accident or work injury No pain more painful than their low back pain No progressive or degenerative neurological disorders No kidney damage Not pregnant or breast-feeding No condition that might affect the way the body absorbs or processes the study drug No bleeding condition No history of suicidal ideas or suicide attempts in the past 2 years No history of a major psychiatric disorder in past 6 months No history of drug or alcohol abuse or dependence