Evaluation of the efficacy, tolerability, and safety of 7 days of treatment with GRT6010 or pregabalin in comparison to placebo in subjects with peripheral neuropathic pain.

To explore the efficacy of GRT010 oral solution on spontaneous and evoked pain in subjects with persistent moderate to severe peripheral neuropathic pain due to post-herpetic neuralgia, post-operative neuropathic pain, or post-traumatic nerve injury