Cross-over, Open-Label Trial of the Effects of Gabapentin Versus Pregabalin on Painful Peripheral Neuropathy and Health-Related Quality of Life in Haemodialysis Patients

Clin Drug Investig. 2013 Jun;33(6):401-8. doi: 10.1007/s40261-013-0080-2.

Abstract

Background: Painful peripheral neuropathy (PPN) is common in haemodialysis patients and associated with impaired health-related quality of life (HR-QoL). Gabapentin and pregabalin have not been fully investigated in haemodialysis patients. Therefore, we compared the effects of gabapentin and pregabalin on intensity of pain and associated HR-QoL in haemodialysis patients with PPN.

Methods: Gabapentin and pregabalin were administered after each haemodialysis session at doses of 300 and 75 mg, respectively. Patients were randomized into two groups; after 6 weeks patients underwent a 2-week washout and crossover and received another 6 weeks of treatment. All patients underwent electromyography at the outset. The short-form McGill pain questionnaire (SF-MPQ) for assessment of pain, and short-form medical outcomes study for assessment of HR-QoL at baseline and at the end of the study were applied.

Results: Forty patients completed the 14-week study period. Gabapentin and pregabalin significantly improved SF-MPQ total scores compared with pretreatment values (mean ± SD) [from 18.9 ± 4.3 to 9.3 ± 4.3 for gabapentin, p < 0.001, and from 18.5 ± 3.9 to 9.8 ± 3.6 for pregabalin, p < 0.001]. There was no significant difference between the study drugs in terms of efficacy against neuropathic pain (p > 0.05). Both gabapentin and pregabalin significantly improved HR-QoL at the end of the study compared with pretreatment scores (p < 0.001).

Conclusion: Our results showed strong efficacy of gabapentin and pregabalin on pain intensity in the given doses. HR-QoL was also significantly improved by both drugs.

Publication types

  • Comparative Study
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Amines / therapeutic use*
  • Analgesics / therapeutic use*
  • Cross-Over Studies
  • Cyclohexanecarboxylic Acids / therapeutic use*
  • Female
  • Follow-Up Studies
  • Gabapentin
  • Humans
  • Male
  • Middle Aged
  • Pain Measurement
  • Peripheral Nervous System Diseases / drug therapy*
  • Pregabalin
  • Prospective Studies
  • Quality of Life
  • Renal Dialysis / adverse effects
  • Surveys and Questionnaires
  • Treatment Outcome
  • gamma-Aminobutyric Acid / analogs & derivatives*
  • gamma-Aminobutyric Acid / therapeutic use

Substances

  • Amines
  • Analgesics
  • Cyclohexanecarboxylic Acids
  • Pregabalin
  • gamma-Aminobutyric Acid
  • Gabapentin