• Hicham I Cheikh Hassan, Frank Brennan, Gemma Collett, Elizabeth A Josland, and Mark A Brown.
• Department of Renal Medicine, St. George Hospital, Sydney, New South Wales, Australia; University of New South Wales, Sydney, New South Wales, Australia.
• J Pain Symptom Manage. 2015 Apr 1;49(4):782-9.

ContextPruritus and restless legs syndrome (RLS) frequently affect patients with chronic kidney disease (CKD) and end-stage kidney disease (ESKD), impacting the quality of life. Gabapentin (1-aminomethyl cyclohexane acetic acid) alleviates these symptoms in hemodialysis (HD) patients, but data are lacking for patients on the conservative pathway.ObjectivesTo determine the safety and effectiveness of gabapentin for pruritus or RLS in conservatively managed patients (n = 34) with CKD and ESKD.MethodsThis was a single-center retrospective cohort study. We compared dosing and side effects in 34 CKD/ESKD patients with similar patients receiving HD (n = 15).ResultsForty-four percent of conservatively managed patients complained of RLS and/or pruritus; 18% were excluded for a nonuremic cause of symptom. Thirty-four patients were included in the final analysis. The most common starting daily dose of gabapentin was the equivalent of 50 mg (44.1%) or 100 mg (38.2%) daily, with the median daily dose of 100 mg (range 39-455 mg). Side effects occurred in 47% of patients, with 17% discontinuing gabapentin. Gabapentin reduced symptoms of pruritus (P < 0.001) and RLS (P < 0.05). There was no statistical difference when comparing HD and conservatively managed patients for daily starting dose (P = 0.88), median dose (P = 0.84), and final dose (P = 0.18). Patients conservatively managed were more likely to manifest side effects compared with HD patients (47.1% vs. 14.3%, P = 0.023). Dose was not found to be a factor associated with side effects in univariate analysis.ConclusionGabapentin is a viable treatment for conservatively managed CKD and ESKD patients with pruritus and/or RLS, but side effects are common. Gabapentin should be used with caution although higher doses do not appear to be a factor associated with side effects.Copyright © 2015 American Academy of Hospice and Palliative Medicine. Published by Elsevier Inc. All rights reserved.

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