Gabapentin for the treatment of postherpetic neuralgia - A randomized controlled trial
Gabapentin for the treatment of postherpetic neuralgia - A randomized controlled trial
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DOI:
10.1001/jama.280.21.1837
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发表时间:
1998-12-02
影响因子:
120.7
通讯作者:
Magnus-Miller, L
中科院分区:
文献类型:
--
作者:
Rowbotham, M;Harden, N;Magnus-Miller, L
Context.-Postherpetic neuralgia (PHN) is a syndrome of often intractable neuropathic pain following herpes tester (shingles) that eludes effective treatment in many patients.Objective.-To determine the efficacy and safety of the anticonvulsant drug gabapentin in reducing PHN pain.Design.-Multicenter, randomized, double-blind, placebo-controlled, parallel design, 8-week trial conducted from August 1996 through July 1997.Setting.-Sixteen US outpatient clinical centers.Participants.-A total of 229 subjects were randomized.Intervention.-A 4-week titration period to a maximum dosage of 3600 mg/d of gabapentin or matching placebo. Treatment was maintained for another 4 weeks at the maximum tolerated dose. Concomitant tricyclic antidepressants and/or narcotics were continued if therapy was stabilized prior to study entry and remained constant throughout the study.Main Outcome Measures.-The primary efficacy measure was change in the average daily pain score based on an Ii-point Likert scale (0, no pain; 10, worst possible pain) from baseline week to the final week of therapy, Secondary measures included average daily sleep scores, Short-Form McGill Pain Questionnaire (SF-MPQ), Subject Global Impression of Change and investigator-rated Clinical Global Impression of Change, Short Form-36 (SF-36) Quality of Life Questionnaire, and Profile of Mood States (POMS). Safety measures included the frequency and severity of adverse events.Results.-One hundred thirteen patients received gabapentin, and 89 (78.8%) completed the study; 116 received placebo, and 95 (81.9%) completed the study. By intent-to-treat analysis, subjects receiving gabapentin had a statistically significant reduction in average daily pain score from 6.3 to 4.2 points compared with a change from 6.5 to 6.0 points in subjects randomized to receive placebo (P