Efficacy and safety of pregabalin in patients with diabetic peripheral neuropathy or postherpetic neuralgia: Open-label, non-comparative, flexible-dose study

In conclusion, pregabalin in a flexible-dose regimen improved pain, sleep, anxiety and general state, and was well tolerated. The efficacy and safety profile of pregabalin was consistent with the data from the controlled clinical trials. The PGIC and CGIC and the specific pain and sleep scores, but not the anxiety score were generally well correlated but not synonymous.