PMID- 16466610 OWN - NLM STAT- MEDLINE DCOM- 20060417 LR - 20220408 IS - 0300-7995 (Print) IS - 0300-7995 (Linking) VI - 22 IP - 2 DP - 2006 Feb TI - Efficacy and tolerability of twice-daily pregabalin for treating pain and related sleep interference in postherpetic neuralgia: a 13-week, randomized trial. PG - 375-84 AB - OBJECTIVE: This trial evaluated the efficacy and safety of pregabalin dosed twice daily (BID) for relief of neuro-pathic pain associated with postherpetic neuralgia (PHN). RESEARCH DESIGN AND METHODS: The 13-week, double-blind, placebo-controlled study randomized 370 patients with PHN to pregabalin (150, 300, or 600 mg/day BID) or placebo. MAIN OUTCOME MEASURES: Primary efficacy measure was endpoint mean pain score from daily pain diaries. Secondary efficacy measures included endpoint mean sleep-interference score from daily sleep diaries and Patient Global Impression of Change (PGIC). Safety evaluations included adverse events (AEs), physical and neurologic examinations, 12-lead ECG, vital signs, and laboratory testing. RESULTS: Pregabalin provided significant, dose-proportional pain relief at endpoint: difference from placebo in mean pain score, 150 mg/day, -0.88, p = 0.0077; 300 mg/day, -1.07, p = 0.0016; 600 mg/day, -1.79, p = 0.0003. Weekly mean pain scores significantly improved as early as week 1. Sleep interference in all pregabalin groups was also significantly improved at endpoint, compared with placebo (p < 0.001), beginning at week 1 (p < 0.01). At study termination, patients in the 150 (p = 0.02) and 600 mg/day (p = 0.003) groups were more likely to report global improvement than were those in the placebo group. Most AEs were mild or moderate. Among pregabalin-treated patients, 13.5% withdrew due to AEs, most commonly for dizziness (16 patients, 5.8%), somnolence (8, 2.9%), or ataxia (7, 2.5%). CONCLUSIONS: Pregabalin, dosed BID, reduced neuropathic pain associated with PHN and was well tolerated. It also reduced the extent to which pain interfered with sleep. Pregabalin's effects were seen as early as week 1 and were sustained throughout the 13-week study. FAU - van Seventer, Robert AU - van Seventer R AD - Amphia Ziekenhuis, Department of Anaesthesiology, The Netherlands. 7ster@planet.nl FAU - Feister, Hilary A AU - Feister HA FAU - Young, James P Jr AU - Young JP Jr FAU - Stoker, Malcolm AU - Stoker M FAU - Versavel, Mark AU - Versavel M FAU - Rigaudy, Laurence AU - Rigaudy L LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - England TA - Curr Med Res Opin JT - Current medical research and opinion JID - 0351014 RN - 0 (Placebos) RN - 55JG375S6M (Pregabalin) RN - 56-12-2 (gamma-Aminobutyric Acid) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Double-Blind Method MH - Drug-Related Side Effects and Adverse Reactions MH - Female MH - Humans MH - Male MH - Middle Aged MH - Neuralgia, Postherpetic/*drug therapy MH - Placebos MH - Pregabalin MH - Sleep Wake Disorders/*drug therapy/etiology MH - Treatment Outcome MH - gamma-Aminobutyric Acid/administration & dosage/adverse effects/*analogs & derivatives/therapeutic use EDAT- 2006/02/10 09:00 MHDA- 2006/04/18 09:00 CRDT- 2006/02/10 09:00 PHST- 2006/02/10 09:00 [pubmed] PHST- 2006/04/18 09:00 [medline] PHST- 2006/02/10 09:00 [entrez] AID - 10.1185/030079906x80404 [doi] PST - ppublish SO - Curr Med Res Opin. 2006 Feb;22(2):375-84. doi: 10.1185/030079906x80404.