A Research Study of an Investigational Drug ALO-02 (Oxycodone Hydrochloride and Naltrexone Hydrochloride) in Patients With Moderate to Severe Chronic Low Back Pain

Exclusion Criteria

• •Active or within a past 2 years a history of lumbosacral radiculopathy or chronic low back pain due to other underlying disorders such as spinal stenosis with neurologic impairment, cancer, infection, or post-surgical intervention.
• •Documented diagnosis of ongoing pain due to other chronic pain conditions which may interfere with assessment of chronic low back pain.
• •Active or ongoing or history of alcohol or drug abuse.