A Study To Evaluate Pregabalin In The Treatment Of Moderate To Severe Chronic Bone Pain Related To Metastatic Cancer

Inclusion Criteria: * Patient must have a malignant, solid tumor that has been diagnosed as having metastasized to bone, and must have moderate to severe pain secondary to the bone metastasis at an identifiable reference site. Exclusion Criteria: * The patient who has undergone diagnostic or therapeutic invasive interventions (angiography, biopsy, surgery) less than 15 days prior to study start that would impact their assessment of pain at the reference pain site or area, in the opinion of the investigator.