Comparison of Increasing Doses of Tapentadol Versus a Combination of Tapentadol and Pregabalin
Conditions
- Low Back Pain
- Neuropathic Pain
Interventions
- DRUG: Tapentadol Prolonged Release
- DRUG: Tapentadol Prolonged Release with Pregabalin
- DRUG: Tapentadol Prolonged Release open label maintenance
Sponsor
Grünenthal GmbH