Journal
EUROPEAN NEUROLOGY
Volume 61, Issue 3, Pages 129-137Publisher
KARGER
DOI: 10.1159/000186502
Keywords
Neuropathic pain; Oxycodone; Pregabalin; Combination therapy
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Aims: The aim of our study was to compare the efficacy, safety, and quality of life of combination therapy with controlled-release (CR) oxycodone plus pregabalin versus monotherapy with either CR oxycodone or pregabalin in patients with neuropathic pain. Materials and Methods: Patients with moderate to severe neuropathic pain, despite the use of various pharmacologic treatments prior to study entry, were enrolled (n = 409) and treated with CR oxycodone plus pregabalin (n = 169), CR oxycodone (n = 106), and pregabalin (n = 134). Pain intensity was rated on an 11-point numerical rating scale (NRS). Results: The combination of CR oxycodone plus pregabalin and CR oxycodone monotherapy were both more effective for alleviating neuropathic pain than pregabalin monotherapy ( reduction in NRS value: 80, 76, and 46%, respectively; p <= 0.003). Significantly greater improvements from baseline in quality of life were reported with combination therapy than with monotherapy ( p = 0.0009). At the end of treatment, the majority (91.2%) of patients receiving CR oxycodone plus pregabalin found that the treatment had been 'effective' or 'very effective'. Combination therapy also allowed a dose reduction of both agents (22% for CR oxycodone and 51% for pregabalin) compared with the dosages of the respective monotherapies. Combination therapy had a superior safety profile compared with pregabalin monotherapy. Conclusions: The combination of CR oxycodone plus pregabalin may represent a valuable addition to the existing pharmacotherapy for neuropathic pain and warrants further investigation. Copyright (c) 2008 S. Karger AG, Basel
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