Study Stopped
It was a business decision to cancel this study in Aug. 2012.
An Open-label Evaluation of Tapentadol Extended Release (ER) in Participants With Moderate to Severe Chronic Pain After Conversion From Hydrocodone, Oxycodone Controlled Release (CR), and/or Morphine Sustained Release (SR)
An Open-label, Multi-center, Single-arm, Phase IV Clinical Trial Assessing Conversion From Hydrocodone, Oxycodone CR or Morphine SR to Tapentadol ER in Subjects With Moderate to Severe Chronic Low Back or OA Pain of the Hip or Knee