Randomized polysomnography study of gabapentin enacarbil in subjects with restless legs syndrome

We assessed the efficacy and tolerability of gabapentin enacarbil in the treatment of moderate to severe primary restless legs syndrome and associated sleep disturbance. This was a multicenter, randomized, double‐blind, placebo‐controlled, 2‐period crossover polysomnography study of gabapentin enaca...

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Published inMovement disorders Vol. 26; no. 11; pp. 2065 - 2072
Main Authors Winkelman, John W., Bogan, Richard K., Schmidt, Markus H., Hudson, John D., DeRossett, Sarah E., Hill-Zabala, Christina E.
Format Journal Article
LanguageEnglish
Published Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.09.2011
Wiley
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Online AccessGet full text
ISSN0885-3185
1531-8257
1531-8257
DOI10.1002/mds.23771

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Abstract We assessed the efficacy and tolerability of gabapentin enacarbil in the treatment of moderate to severe primary restless legs syndrome and associated sleep disturbance. This was a multicenter, randomized, double‐blind, placebo‐controlled, 2‐period crossover polysomnography study of gabapentin enacarbil 1200 mg or placebo taken once daily. Subjects were randomized 1:1 to a sequence of gabapentin enacarbil:placebo or placebo:gabapentin enacarbil, receiving each treatment for 4 weeks. The primary end point was the mean change from baseline at weeks 4 and 10 (4/10) last observation carried forward in wake time during sleep. The key secondary end point was the mean change from baseline at weeks 4/10 last observation carried forward in periodic limb movements associated with arousal per hour of sleep. Tolerability assessments included adverse events. One hundred thirty‐six subjects were randomized (gabapentin enacarbil:placebo, 67; placebo:gabapentin enacarbil, 69), and 114 (gabapentin enacarbil:placebo, 53; placebo:gabapentin enacarbil, 61) completed the study. Gabapentin enacarbil 1200 mg significantly reduced wake time during sleep (mean change from baseline [adjusted mean treatment difference]: −26.0 minutes; P < .0001) and periodic limb movements associated with arousal per hour of sleep (adjusted mean treatment difference: −3.1 periodic limb movements with arousal/hour; P = .002) compared with placebo at weeks 4/10 last observation carried forward. The most commonly reported adverse events were dizziness (gabapentin enacarbil 20%, placebo 2%) and somnolence (gabapentin enacarbil 13%, placebo 2%). Gabapentin enacarbil 1200 mg once daily significantly reduces restless legs syndrome–associated sleep disturbance and periodic limb movements associated with arousal per hour of sleep and is generally well tolerated in adults with moderate to severe primary restless legs syndrome. © 2011 Movement Disorder Society
AbstractList We assessed the efficacy and tolerability of gabapentin enacarbil in the treatment of moderate to severe primary restless legs syndrome and associated sleep disturbance. This was a multicenter, randomized, double-blind, placebo-controlled, 2-period crossover polysomnography study of gabapentin enacarbil 1200 mg or placebo taken once daily. Subjects were randomized 1:1 to a sequence of gabapentin enacarbil:placebo or placebo:gabapentin enacarbil, receiving each treatment for 4 weeks. The primary end point was the mean change from baseline at weeks 4 and 10 (4/10) last observation carried forward in wake time during sleep. The key secondary end point was the mean change from baseline at weeks 4/10 last observation carried forward in periodic limb movements associated with arousal per hour of sleep. Tolerability assessments included adverse events. One hundred thirty-six subjects were randomized (gabapentin enacarbil:placebo, 67; placebo:gabapentin enacarbil, 69), and 114 (gabapentin enacarbil:placebo, 53; placebo:gabapentin enacarbil, 61) completed the study. Gabapentin enacarbil 1200 mg significantly reduced wake time during sleep (mean change from baseline [adjusted mean treatment difference]: -26.0 minutes; P < .0001) and periodic limb movements associated with arousal per hour of sleep (adjusted mean treatment difference: -3.1 periodic limb movements with arousal/hour; P = .002) compared with placebo at weeks 4/10 last observation carried forward. The most commonly reported adverse events were dizziness (gabapentin enacarbil 20%, placebo 2%) and somnolence (gabapentin enacarbil 13%, placebo 2%). Gabapentin enacarbil 1200 mg once daily significantly reduces restless legs syndrome-associated sleep disturbance and periodic limb movements associated with arousal per hour of sleep and is generally well tolerated in adults with moderate to severe primary restless legs syndrome.We assessed the efficacy and tolerability of gabapentin enacarbil in the treatment of moderate to severe primary restless legs syndrome and associated sleep disturbance. This was a multicenter, randomized, double-blind, placebo-controlled, 2-period crossover polysomnography study of gabapentin enacarbil 1200 mg or placebo taken once daily. Subjects were randomized 1:1 to a sequence of gabapentin enacarbil:placebo or placebo:gabapentin enacarbil, receiving each treatment for 4 weeks. The primary end point was the mean change from baseline at weeks 4 and 10 (4/10) last observation carried forward in wake time during sleep. The key secondary end point was the mean change from baseline at weeks 4/10 last observation carried forward in periodic limb movements associated with arousal per hour of sleep. Tolerability assessments included adverse events. One hundred thirty-six subjects were randomized (gabapentin enacarbil:placebo, 67; placebo:gabapentin enacarbil, 69), and 114 (gabapentin enacarbil:placebo, 53; placebo:gabapentin enacarbil, 61) completed the study. Gabapentin enacarbil 1200 mg significantly reduced wake time during sleep (mean change from baseline [adjusted mean treatment difference]: -26.0 minutes; P < .0001) and periodic limb movements associated with arousal per hour of sleep (adjusted mean treatment difference: -3.1 periodic limb movements with arousal/hour; P = .002) compared with placebo at weeks 4/10 last observation carried forward. The most commonly reported adverse events were dizziness (gabapentin enacarbil 20%, placebo 2%) and somnolence (gabapentin enacarbil 13%, placebo 2%). Gabapentin enacarbil 1200 mg once daily significantly reduces restless legs syndrome-associated sleep disturbance and periodic limb movements associated with arousal per hour of sleep and is generally well tolerated in adults with moderate to severe primary restless legs syndrome.
We assessed the efficacy and tolerability of gabapentin enacarbil in the treatment of moderate to severe primary restless legs syndrome and associated sleep disturbance. This was a multicenter, randomized, double‐blind, placebo‐controlled, 2‐period crossover polysomnography study of gabapentin enacarbil 1200 mg or placebo taken once daily. Subjects were randomized 1:1 to a sequence of gabapentin enacarbil:placebo or placebo:gabapentin enacarbil, receiving each treatment for 4 weeks. The primary end point was the mean change from baseline at weeks 4 and 10 (4/10) last observation carried forward in wake time during sleep. The key secondary end point was the mean change from baseline at weeks 4/10 last observation carried forward in periodic limb movements associated with arousal per hour of sleep. Tolerability assessments included adverse events. One hundred thirty‐six subjects were randomized (gabapentin enacarbil:placebo, 67; placebo:gabapentin enacarbil, 69), and 114 (gabapentin enacarbil:placebo, 53; placebo:gabapentin enacarbil, 61) completed the study. Gabapentin enacarbil 1200 mg significantly reduced wake time during sleep (mean change from baseline [adjusted mean treatment difference]: −26.0 minutes; P < .0001) and periodic limb movements associated with arousal per hour of sleep (adjusted mean treatment difference: −3.1 periodic limb movements with arousal/hour; P = .002) compared with placebo at weeks 4/10 last observation carried forward. The most commonly reported adverse events were dizziness (gabapentin enacarbil 20%, placebo 2%) and somnolence (gabapentin enacarbil 13%, placebo 2%). Gabapentin enacarbil 1200 mg once daily significantly reduces restless legs syndrome–associated sleep disturbance and periodic limb movements associated with arousal per hour of sleep and is generally well tolerated in adults with moderate to severe primary restless legs syndrome. © 2011 Movement Disorder Society
We assessed the efficacy and tolerability of gabapentin enacarbil in the treatment of moderate to severe primary restless legs syndrome and associated sleep disturbance. This was a multicenter, randomized, double-blind, placebo-controlled, 2-period crossover polysomnography study of gabapentin enacarbil 1200 mg or placebo taken once daily. Subjects were randomized 1:1 to a sequence of gabapentin enacarbil:placebo or placebo:gabapentin enacarbil, receiving each treatment for 4 weeks. The primary end point was the mean change from baseline at weeks 4 and 10 (4/10) last observation carried forward in wake time during sleep. The key secondary end point was the mean change from baseline at weeks 4/10 last observation carried forward in periodic limb movements associated with arousal per hour of sleep. Tolerability assessments included adverse events. One hundred thirty-six subjects were randomized (gabapentin enacarbil:placebo, 67; placebo:gabapentin enacarbil, 69), and 114 (gabapentin enacarbil:placebo, 53; placebo:gabapentin enacarbil, 61) completed the study. Gabapentin enacarbil 1200 mg significantly reduced wake time during sleep (mean change from baseline [adjusted mean treatment difference]: -26.0 minutes; P < .0001) and periodic limb movements associated with arousal per hour of sleep (adjusted mean treatment difference: -3.1 periodic limb movements with arousal/hour; P = .002) compared with placebo at weeks 4/10 last observation carried forward. The most commonly reported adverse events were dizziness (gabapentin enacarbil 20%, placebo 2%) and somnolence (gabapentin enacarbil 13%, placebo 2%). Gabapentin enacarbil 1200 mg once daily significantly reduces restless legs syndrome-associated sleep disturbance and periodic limb movements associated with arousal per hour of sleep and is generally well tolerated in adults with moderate to severe primary restless legs syndrome.
We assessed the efficacy and tolerability of gabapentin enacarbil in the treatment of moderate to severe primary restless legs syndrome and associated sleep disturbance. This was a multicenter, randomized, double‐blind, placebo‐controlled, 2‐period crossover polysomnography study of gabapentin enacarbil 1200 mg or placebo taken once daily. Subjects were randomized 1:1 to a sequence of gabapentin enacarbil:placebo or placebo:gabapentin enacarbil, receiving each treatment for 4 weeks. The primary end point was the mean change from baseline at weeks 4 and 10 (4/10) last observation carried forward in wake time during sleep. The key secondary end point was the mean change from baseline at weeks 4/10 last observation carried forward in periodic limb movements associated with arousal per hour of sleep. Tolerability assessments included adverse events. One hundred thirty‐six subjects were randomized (gabapentin enacarbil:placebo, 67; placebo:gabapentin enacarbil, 69), and 114 (gabapentin enacarbil:placebo, 53; placebo:gabapentin enacarbil, 61) completed the study. Gabapentin enacarbil 1200 mg significantly reduced wake time during sleep (mean change from baseline [adjusted mean treatment difference]: −26.0 minutes; P < .0001) and periodic limb movements associated with arousal per hour of sleep (adjusted mean treatment difference: −3.1 periodic limb movements with arousal/hour; P = .002) compared with placebo at weeks 4/10 last observation carried forward. The most commonly reported adverse events were dizziness (gabapentin enacarbil 20%, placebo 2%) and somnolence (gabapentin enacarbil 13%, placebo 2%). Gabapentin enacarbil 1200 mg once daily significantly reduces restless legs syndrome–associated sleep disturbance and periodic limb movements associated with arousal per hour of sleep and is generally well tolerated in adults with moderate to severe primary restless legs syndrome. © 2011 Movement Disorder Society
Author Bogan, Richard K.
Hudson, John D.
Winkelman, John W.
Schmidt, Markus H.
Hill-Zabala, Christina E.
DeRossett, Sarah E.
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Issue 11
Keywords Human
Sensitivity disorder
Restless legs syndrome
Nervous system diseases
sleep disturbance
Sleep disorder
Neurological disorder
Gabapentin enacarbil
Polysomnography
Language English
License http://onlinelibrary.wiley.com/termsAndConditions#vor
CC BY 4.0
Copyright © 2011 Movement Disorder Society.
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Full financial disclosures and author roles may be found in the online version of this article.
ArticleID:MDS23771
Funding agencies: Research funding for design and conduct of this study and for collection, management, analysis, and interpretation of the data was sponsored by GlaxoSmithKline, Research Triangle Park, North Carolina. Preparation and review of the manuscript were sponsored by GlaxoSmithKline, Research Triangle Park, North Carolina.
Relevant conflicts of interest/financial disclosures: Dr. John Winkelman has received consulting fees from GlaxoSmithKline. Dr. Richard Bogan has received consulting fees and research funding from GlaxoSmithKline and received research funding from XenoPort, Inc. Dr. Markus Schmidt has received consulting fees and research funding from GlaxoSmithKline and received research funding from Xenoport, Inc. Dr. John Hudson has served on the Speaker's Bureau for GlaxoSmithKline and received research funding from GlaxoSmithKline and XenoPort, Inc. Drs. DeRossett and Hill-Zabala are employees of GlaxoSmithKline. No ghostwriting took place during the development of this manuscript. Editorial assistance was provided by Sarah Brown and Phillippa Curran of Caudex Medical, Oxford, UK (funded by GlaxoSmithKline), who collated author comments. Assistance was provided with full consent of the authors and in compliance with Good Publication Practice 2 (BMJ 2009;339:b4330 doi: 10.1136/b4330). The named authors meet the ICMJE criteria for authorship, and writing assistance is disclosed in the acknowledgments section of the manuscript.
2009;339:b4330 doi: 10.1136/b4330). The named authors meet the ICMJE criteria for authorship, and writing assistance is disclosed in the acknowledgments section of the manuscript.
Research funding for design and conduct of this study and for collection, management, analysis, and interpretation of the data was sponsored by GlaxoSmithKline, Research Triangle Park, North Carolina. Preparation and review of the manuscript were sponsored by GlaxoSmithKline, Research Triangle Park, North Carolina.
Dr. John Winkelman has received consulting fees from GlaxoSmithKline. Dr. Richard Bogan has received consulting fees and research funding from GlaxoSmithKline and received research funding from XenoPort, Inc. Dr. Markus Schmidt has received consulting fees and research funding from GlaxoSmithKline and received research funding from Xenoport, Inc. Dr. John Hudson has served on the Speaker's Bureau for GlaxoSmithKline and received research funding from GlaxoSmithKline and XenoPort, Inc. Drs. DeRossett and Hill‐Zabala are employees of GlaxoSmithKline. No ghostwriting took place during the development of this manuscript. Editorial assistance was provided by Sarah Brown and Phillippa Curran of Caudex Medical, Oxford, UK (funded by GlaxoSmithKline), who collated author comments. Assistance was provided with full consent of the authors and in compliance with Good Publication Practice 2
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crossref_citationtrail_10_1002_mds_23771
crossref_primary_10_1002_mds_23771
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PublicationDate September 2011
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  text: September 2011
PublicationDecade 2010
PublicationPlace Hoboken
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PublicationTitle Movement disorders
PublicationTitleAlternate Mov. Disord
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References Happe S, Sauter C, Klosch G, Saletu B, Zeitlhofer J. Gabapentin versus ropinirole in the treatment of idiopathic restless legs syndrome. Neuropsychobiology 2003; 48: 82-86.
Hornyak M, Kopasz M, Berger M, Riemann D, Voderholzer U. Impact of sleep-related complaints on depressive symptoms in patients with restless legs syndrome. J Clin Psychiatry 2005; 66: 1139-1145.
Saletu M, Anderer P, Saletu-Zyhlarz GM, et al. Comparative placebo-controlled polysomnographic and psychometric studies on the acute effects of gabapentin versus ropinirole in restless legs syndrome. J Neural Transm 2010; 117: 463-473.
Goodglass H, Kaplan E. Assessment of Aphasia and Related Disorders. Philadelphia: Lea & Febiger; 1972.
Allen RP, Picchietti D, Hening WA, Trenkwalder C, Walters AS, Montplaisir J. Restless legs syndrome: diagnostic criteria, special considerations, and epidemiology. A report from the restless legs syndrome diagnosis and epidemiology workshop at the National Institutes of Health. Sleep Med 2003; 4: 101-119.
Cundy KC, Branch R, Chernov-Rogan T, et al. XP13512 [(±)-1-([(alpha-isobutanoyloxyethoxy)carbonyl] aminomethyl)-1-cyclohexane acetic acid], a novel gabapentin prodrug: I. Design, synthesis, enzymatic conversion to gabapentin, and transport by intestinal solute transporters. J Pharmacol Exp Ther 2004; 311: 315-323.
Reitan, R. Validity of the trail-making test as an indicator of organic brain disease. Percept Mot Skills 1958; 8: 271-276.
Allen RP, Walters AS, Montplaisir J, et al. Restless legs syndrome prevalence and impact: REST general population study. Arch Intern Med 2005; 165: 1286-1292.
Rosen WG. Verbal fluency in aging and dementia. J Clin Neuropsychol 1980; 2: 135-146.
Atlas Task Force of The American Sleep Disorders Association. Recording and scoring leg movements. Sleep 1993; 16: 748-759.
Saletu B, Gruber G, Saletu M, et al. Sleep laboratory studies in restless legs syndrome patients as compared with normals and acute effects of ropinirole. 1. Findings on objective and subjective sleep and awakening quality. Neuropsychobiology 2000; 41: 181-189.
Iber C, Ancoli-Israel S, Chesson A, Quan SF. The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology and Technical Specifications. Westchester, IL: American Academy of Sleep Medicine; 2007.
Saletu M, Anderer P, Saletu B, et al. Sleep laboratory studies in restless legs syndrome patients as compared with normals and acute effects of ropinirole. 2. Findings on periodic leg movements, arousals and respiratory variables. Neuropsychobiology 2000; 41: 190-199.
Walters AS, Rye DB. Review of the relationship of restless legs syndrome and periodic limb movements in sleep to hypertension, heart disease, and stroke. Sleep 2009; 32: 589-597.
Lahmeyer H, Wilcox CS, Kann J, Leppik I. Subjective efficacy of zolpidem in outpatients with chronic insomnia. A double-blind comparison with placebo. Clin Drug Investig 1997; 13: 134-144.
Ferini-Strambi L, Aarskog D, Partinen M, et al. Effect of pramipexole on RLS symptoms and sleep: A randomized, double-blind, placebo-controlled trial. Sleep Med 2008; 9: 874-881.
Allen R, Becker PM, Bogan R, et al. Ropinirole decreases periodic leg movements and improves sleep parameters in patients with restless legs syndrome. Sleep 2004; 27: 907-914.
Lal R, Sukbuntherng J, Luo W, et al. Pharmacokinetics and tolerability of single escalating doses of gabapentin enacarbil: a randomized-sequence, double-blind, placebo-controlled, crossover study in healthy volunteers. Clin Ther 2009; 31: 1776-1786.
Bogan RK, Fry JM, Schmidt MH, Carson SW, Ritchie SY. Ropinirole in the treatment of patients with restless legs syndrome: a US-based randomized, double-blind, placebo-controlled clinical trial. Mayo Clin Proc 2006; 81: 17-27.
Cundy KC, Sastry S, Luo W, Zou J, Moors TL, Canafax DM. Clinical pharmacokinetics of XP13512, a novel transported prodrug of gabapentin. J Clin Pharmacol 2008; 48: 1378-1388.
Hening WA, Allen RP. Restless legs syndrome (RLS): the continuing development of diagnostic standards and severity measures. Sleep Med 2003; 4: 95-97.
Kushida CA, Becker PM, Ellenbogen AL, Canafax DM, Barrett RW, the XP, 052 Study Group. Randomized, double-blind, placebo-controlled trial of XP13512/GSK1838262 in patients with RLS. Neurology 2009; 72: 439-446.
Walters AS, Ondo WG, Kushida CA, et al. Gabapentin enacarbil in restless legs syndrome: A phase 2b, two-week, randomized, double-blind, placebo-controlled trial. Clin Neuropharmacol 2009; 32: 311-320.
Winkelman JW, Finn L, Young T. Prevalence and correlates of restless legs syndrome symptoms in the Wisconsin Sleep Cohort. Sleep Med 2006; 7: 545-552.
Jama L, Hirvonen K, Partinen M, et al. A dose-ranging study of pramipexole for the symptomatic treatment of restless legs syndrome: polysomnographic evaluation of periodic leg movements and sleep disturbance. Sleep Med 2009; 10: 630-636.
Kushida CA, Walters AS, Becker P, et al. A randomized, double-blind, placebo-controlled, crossover study of XP13512/GSK1838262 in the treatment of patients with primary restless legs syndrome. Sleep 2009; 32: 159-168.
Montplaisir J, Nicolas A, Denesle R, Gomez-Mancilla B. Restless legs syndrome improved by pramipexole: a double-blind randomized trial. Neurology 1999; 52: 938-943.
Rechtschaffen A, Kales A. A manual of standardized terminology, techniques and scoring system for sleep stages of human subjects. Washington, DC: US Government Printing Office, US Public Health Service; 1968.
Trenkwalder C, Hening WA, Montagna P, et al. Treatment of restless legs syndrome: an evidence-based review and implications for clinical practice. Mov Disord 2008; 23: 2267-2302.
Montplaisir J, Boucher S, Poirier G, Lavigne G, Lapierre O, Lesperance P. Clinical, polysomnographic, and genetic characteristics of restless legs syndrome: a study of 133 patients diagnosed with new standard criteria. Mov Disord 1997; 12: 61-65.
Calloway MO, Bharmal A, Hill-Zabala CE, Allen RP. Development and validation of a Subjective Post Sleep Diary (SPSD) to assess sleep status in subjects with restless legs syndrome. Sleep Med 2011; in press.
Zucconi M, Ferri R, Allen R, et al. The official World Association of Sleep Medicine (WASM) standards for recording and scoring periodic leg movements in sleep (PLMS) and wakefulness (PLMW) developed in collaboration with a task force from the International Restless Legs Syndrome Study Group (IRLSSG). Sleep Med 2006; 7: 175-183.
Partinen M, Hirvonen K, Jama L, et al. Efficacy and safety of pramipexole in idiopathic restless legs syndrome: a polysomnographic dose-finding study-the PRELUDE study. Sleep Med 2006; 7: 407-417.
Cundy KC, Annamalai T, Bu L, et al. XP13512 [(±)-1-([(alpha-isobutanoyloxyethoxy)carbonyl] aminomethyl)-1-cyclohexane acetic acid], a novel gabapentin prodrug: II. Improved oral bioavailability, dose proportionality, and colonic absorption compared with gabapentin in rats and monkeys. J Pharmacol Exp Ther 2004; 311: 324-333.
Garcia-Borreguero D, Larrosa O, de la Llave Y, Verger K, Masramon X, Hernandez G. Treatment of restless legs syndrome with gabapentin: a double-blind, cross-over study. Neurology 2002; 59: 1573-1579.
Hening W, Walters AS, Allen RP, Montplaisir J, Myers A, Ferini-Strambi L. Impact, diagnosis and treatment of restless legs syndrome (RLS) in a primary care population: the REST (RLS epidemiology, symptoms, and treatment) primary care study. Sleep Med 2004; 5: 237-246.
2002; 59
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References_xml – reference: Goodglass H, Kaplan E. Assessment of Aphasia and Related Disorders. Philadelphia: Lea & Febiger; 1972.
– reference: Hening W, Walters AS, Allen RP, Montplaisir J, Myers A, Ferini-Strambi L. Impact, diagnosis and treatment of restless legs syndrome (RLS) in a primary care population: the REST (RLS epidemiology, symptoms, and treatment) primary care study. Sleep Med 2004; 5: 237-246.
– reference: Montplaisir J, Nicolas A, Denesle R, Gomez-Mancilla B. Restless legs syndrome improved by pramipexole: a double-blind randomized trial. Neurology 1999; 52: 938-943.
– reference: Jama L, Hirvonen K, Partinen M, et al. A dose-ranging study of pramipexole for the symptomatic treatment of restless legs syndrome: polysomnographic evaluation of periodic leg movements and sleep disturbance. Sleep Med 2009; 10: 630-636.
– reference: Trenkwalder C, Hening WA, Montagna P, et al. Treatment of restless legs syndrome: an evidence-based review and implications for clinical practice. Mov Disord 2008; 23: 2267-2302.
– reference: Winkelman JW, Finn L, Young T. Prevalence and correlates of restless legs syndrome symptoms in the Wisconsin Sleep Cohort. Sleep Med 2006; 7: 545-552.
– reference: Montplaisir J, Boucher S, Poirier G, Lavigne G, Lapierre O, Lesperance P. Clinical, polysomnographic, and genetic characteristics of restless legs syndrome: a study of 133 patients diagnosed with new standard criteria. Mov Disord 1997; 12: 61-65.
– reference: Iber C, Ancoli-Israel S, Chesson A, Quan SF. The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology and Technical Specifications. Westchester, IL: American Academy of Sleep Medicine; 2007.
– reference: Zucconi M, Ferri R, Allen R, et al. The official World Association of Sleep Medicine (WASM) standards for recording and scoring periodic leg movements in sleep (PLMS) and wakefulness (PLMW) developed in collaboration with a task force from the International Restless Legs Syndrome Study Group (IRLSSG). Sleep Med 2006; 7: 175-183.
– reference: Calloway MO, Bharmal A, Hill-Zabala CE, Allen RP. Development and validation of a Subjective Post Sleep Diary (SPSD) to assess sleep status in subjects with restless legs syndrome. Sleep Med 2011; in press.
– reference: Reitan, R. Validity of the trail-making test as an indicator of organic brain disease. Percept Mot Skills 1958; 8: 271-276.
– reference: Allen RP, Walters AS, Montplaisir J, et al. Restless legs syndrome prevalence and impact: REST general population study. Arch Intern Med 2005; 165: 1286-1292.
– reference: Saletu M, Anderer P, Saletu-Zyhlarz GM, et al. Comparative placebo-controlled polysomnographic and psychometric studies on the acute effects of gabapentin versus ropinirole in restless legs syndrome. J Neural Transm 2010; 117: 463-473.
– reference: Lal R, Sukbuntherng J, Luo W, et al. Pharmacokinetics and tolerability of single escalating doses of gabapentin enacarbil: a randomized-sequence, double-blind, placebo-controlled, crossover study in healthy volunteers. Clin Ther 2009; 31: 1776-1786.
– reference: Kushida CA, Walters AS, Becker P, et al. A randomized, double-blind, placebo-controlled, crossover study of XP13512/GSK1838262 in the treatment of patients with primary restless legs syndrome. Sleep 2009; 32: 159-168.
– reference: Partinen M, Hirvonen K, Jama L, et al. Efficacy and safety of pramipexole in idiopathic restless legs syndrome: a polysomnographic dose-finding study-the PRELUDE study. Sleep Med 2006; 7: 407-417.
– reference: Allen R, Becker PM, Bogan R, et al. Ropinirole decreases periodic leg movements and improves sleep parameters in patients with restless legs syndrome. Sleep 2004; 27: 907-914.
– reference: Happe S, Sauter C, Klosch G, Saletu B, Zeitlhofer J. Gabapentin versus ropinirole in the treatment of idiopathic restless legs syndrome. Neuropsychobiology 2003; 48: 82-86.
– reference: Rosen WG. Verbal fluency in aging and dementia. J Clin Neuropsychol 1980; 2: 135-146.
– reference: Cundy KC, Annamalai T, Bu L, et al. XP13512 [(±)-1-([(alpha-isobutanoyloxyethoxy)carbonyl] aminomethyl)-1-cyclohexane acetic acid], a novel gabapentin prodrug: II. Improved oral bioavailability, dose proportionality, and colonic absorption compared with gabapentin in rats and monkeys. J Pharmacol Exp Ther 2004; 311: 324-333.
– reference: Walters AS, Ondo WG, Kushida CA, et al. Gabapentin enacarbil in restless legs syndrome: A phase 2b, two-week, randomized, double-blind, placebo-controlled trial. Clin Neuropharmacol 2009; 32: 311-320.
– reference: Hening WA, Allen RP. Restless legs syndrome (RLS): the continuing development of diagnostic standards and severity measures. Sleep Med 2003; 4: 95-97.
– reference: Allen RP, Picchietti D, Hening WA, Trenkwalder C, Walters AS, Montplaisir J. Restless legs syndrome: diagnostic criteria, special considerations, and epidemiology. A report from the restless legs syndrome diagnosis and epidemiology workshop at the National Institutes of Health. Sleep Med 2003; 4: 101-119.
– reference: Hornyak M, Kopasz M, Berger M, Riemann D, Voderholzer U. Impact of sleep-related complaints on depressive symptoms in patients with restless legs syndrome. J Clin Psychiatry 2005; 66: 1139-1145.
– reference: Rechtschaffen A, Kales A. A manual of standardized terminology, techniques and scoring system for sleep stages of human subjects. Washington, DC: US Government Printing Office, US Public Health Service; 1968.
– reference: Walters AS, Rye DB. Review of the relationship of restless legs syndrome and periodic limb movements in sleep to hypertension, heart disease, and stroke. Sleep 2009; 32: 589-597.
– reference: Lahmeyer H, Wilcox CS, Kann J, Leppik I. Subjective efficacy of zolpidem in outpatients with chronic insomnia. A double-blind comparison with placebo. Clin Drug Investig 1997; 13: 134-144.
– reference: Saletu M, Anderer P, Saletu B, et al. Sleep laboratory studies in restless legs syndrome patients as compared with normals and acute effects of ropinirole. 2. Findings on periodic leg movements, arousals and respiratory variables. Neuropsychobiology 2000; 41: 190-199.
– reference: Saletu B, Gruber G, Saletu M, et al. Sleep laboratory studies in restless legs syndrome patients as compared with normals and acute effects of ropinirole. 1. Findings on objective and subjective sleep and awakening quality. Neuropsychobiology 2000; 41: 181-189.
– reference: Bogan RK, Fry JM, Schmidt MH, Carson SW, Ritchie SY. Ropinirole in the treatment of patients with restless legs syndrome: a US-based randomized, double-blind, placebo-controlled clinical trial. Mayo Clin Proc 2006; 81: 17-27.
– reference: Ferini-Strambi L, Aarskog D, Partinen M, et al. Effect of pramipexole on RLS symptoms and sleep: A randomized, double-blind, placebo-controlled trial. Sleep Med 2008; 9: 874-881.
– reference: Cundy KC, Sastry S, Luo W, Zou J, Moors TL, Canafax DM. Clinical pharmacokinetics of XP13512, a novel transported prodrug of gabapentin. J Clin Pharmacol 2008; 48: 1378-1388.
– reference: Garcia-Borreguero D, Larrosa O, de la Llave Y, Verger K, Masramon X, Hernandez G. Treatment of restless legs syndrome with gabapentin: a double-blind, cross-over study. Neurology 2002; 59: 1573-1579.
– reference: Cundy KC, Branch R, Chernov-Rogan T, et al. XP13512 [(±)-1-([(alpha-isobutanoyloxyethoxy)carbonyl] aminomethyl)-1-cyclohexane acetic acid], a novel gabapentin prodrug: I. Design, synthesis, enzymatic conversion to gabapentin, and transport by intestinal solute transporters. J Pharmacol Exp Ther 2004; 311: 315-323.
– reference: Kushida CA, Becker PM, Ellenbogen AL, Canafax DM, Barrett RW, the XP, 052 Study Group. Randomized, double-blind, placebo-controlled trial of XP13512/GSK1838262 in patients with RLS. Neurology 2009; 72: 439-446.
– reference: Atlas Task Force of The American Sleep Disorders Association. Recording and scoring leg movements. Sleep 1993; 16: 748-759.
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Snippet We assessed the efficacy and tolerability of gabapentin enacarbil in the treatment of moderate to severe primary restless legs syndrome and associated sleep...
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SubjectTerms Adolescent
Adult
Aged
Biological and medical sciences
Carbamates - therapeutic use
Child clinical studies
Cross-Over Studies
Developmental disorders
Dose-Response Relationship, Drug
Double-Blind Method
Female
gabapentin enacarbil
gamma-Aminobutyric Acid - analogs & derivatives
gamma-Aminobutyric Acid - therapeutic use
Humans
Infantile autism
Male
Medical sciences
Middle Aged
Neurology
Polysomnography
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
restless legs syndrome
Restless Legs Syndrome - drug therapy
sleep disturbance
Treatment Outcome
Young Adult
Title Randomized polysomnography study of gabapentin enacarbil in subjects with restless legs syndrome
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https://onlinelibrary.wiley.com/doi/abs/10.1002%2Fmds.23771
https://www.ncbi.nlm.nih.gov/pubmed/21611981
https://www.proquest.com/docview/893312954
Volume 26
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