carbamates has been researched along with Restless Legs Syndrome in 35 studies
Restless Legs Syndrome: A disorder characterized by aching or burning sensations in the lower and rarely the upper extremities that occur prior to sleep or may awaken the patient from sleep.
Excerpt | Relevance | Reference |
---|---|---|
"We hypothesized that restless legs syndrome (RLS), a common neurological sensorimotor disorder of uncomfortable leg sensations that appear at night and interfere with sleep, might be a cause for nighttime agitation in persons with AD." | 2.94 | Nighttime Agitation and Restless Legs Syndrome in Persons With Alzheimer's Disease: Study Protocol for a Double-Blind, Placebo-Controlled, Randomized Trial (NightRest). ( Allen, R; Fry, L; Gooneratne, N; Hanlon, A; Kovach, C; Loera, A; Lozano, A; Morrison, J; Rangel, A; Richards, K; Wang, YY, 2020) |
"Outpatients with RLS (International Restless Legs Syndrome Rating Scale (IRLS) scores ≥15) were randomized (n = 474) and treated (n = 469) in a double-blind manner with once-daily placebo (n = 116), 600 (n = 120), 900 (n = 119) or 1200 (n = 114) mg GEn for 12 weeks." | 2.78 | Gabapentin enacarbil in Japanese patients with restless legs syndrome: a 12-week, randomized, double-blind, placebo-controlled, parallel-group study. ( Hattori, N; Hirata, K; Inoue, Y; Kuroda, K; Takeuchi, M; Uchimura, N, 2013) |
" Using plasma gabapentin concentration data obtained after administration of GEn in 12 phase 1 to 3 GEn studies in healthy adults or patients with RLS (dose range, 300-2400 mg/d), a population pharmacokinetic (PK) model was developed by nonlinear mixed-effect modeling using NONMEM." | 2.78 | Population pharmacokinetics and pharmacodynamics of gabapentin after administration of gabapentin enacarbil. ( Cundy, KC; Lal, R; Lassauzet, ML; Luo, W; Sukbuntherng, J; Tovera, J, 2013) |
" International Restless Legs Syndrome Scale (IRLS) score, investigator- and patient-rated Clinical Global Impression (CGI) scores, Pittsburgh Sleep Quality Index (PSQI) total scores and subscores, and short form (SF)-36 subscores were assessed, and adverse events (AEs) were monitored." | 2.77 | Long-term efficacy and safety of gabapentin enacarbil in Japanese restless legs syndrome patients. ( Hattori, N; Hirata, K; Inoue, Y; Kuroda, K; Uchimura, N, 2012) |
"Because of the subjective nature of Restless Legs Syndrome (RLS) symptoms and the impact of these symptoms on sleep, patient-reported outcomes (PROs) play a prominent role as study endpoints in clinical trials investigating RLS treatments." | 2.76 | Validation of the post sleep questionnaire for assessing subjects with restless legs syndrome: results from two double-blind, multicenter, placebo-controlled clinical trials. ( Bhanegaonkar, A; Bharmal, M; Calloway, M; Canafax, DM, 2011) |
"Restless legs syndrome is a common neurological condition affecting a substantial portion of the population." | 2.58 | Use of α2δ Ligands for Restless Legs Syndrome/Willis Ekbom Disease. ( Faulkner, MA, 2018) |
"Few studies have investigated restless legs syndrome (RLS) treatment effects on individual International RLS Study Group Rating Scale (IRLS) items." | 2.53 | Effect of Gabapentin Enacarbil on Individual Items of the International Restless Legs Study Group Rating Scale and Post-sleep Questionnaire in Adults with Moderate-to-Severe Primary Restless Legs Syndrome: Pooled Analysis of 3 Randomized Trials. ( Ahmed, M; Hays, R; Jaros, MJ; Kim, R; Shang, G; Steven Poceta, J, 2016) |
" Bioavailability is greater in gabapentin enacarbil as compared to gabapentin." | 2.50 | New treatment options for the management of restless leg syndrome. ( Toro, BE, 2014) |
"To review the pharmacology, pharmacokinetics, clinical efficacy, adverse effects, drug interactions, precautions, dosing recommendations, and patient counseling for gabapentin enacarbil for the treatment of restless legs syndrome (RLS) in adults." | 2.48 | Gabapentin enacarbil for treatment of restless legs syndrome in adults. ( Farver, DK; Hayes, WJ; Lemon, MD, 2012) |
" The AEs reported most frequently were somnolence and dizziness; there was a dose-response relationship to these AEs." | 2.48 | Dose response of Gabapentin Enacarbil versus placebo in subjects with moderate-to-severe primary restless legs syndrome: an integrated analysis of three 12-week studies. ( Barrett, RW; Kavanagh, ST; VanMeter, SA; Warren, S, 2012) |
" This allows for once-daily dosing and less variability in serum levels." | 2.47 | Gabapentin enacarbil for the treatment of restless legs syndrome (RLS). ( Burke, RA; Faulkner, MA, 2011) |
"Adults with moderate-to-severe primary restless legs syndrome (RLS) often experience painful dysesthesias, which may lead to impaired quality of life." | 1.43 | The Effect of Gabapentin Enacarbil on Pain Associated with Moderate-to-Severe Primary Restless Legs Syndrome in Adults: Pooled Analyses from Three Randomized Controlled Trials. ( Buchfuhrer, M; Ellenbogen, A; Hermanowicz, N; Irving, G; Jaros, MJ; Kim, R; Shang, G, 2016) |
Timeframe | Studies, this research(%) | All Research% |
---|---|---|
pre-1990 | 0 (0.00) | 18.7374 |
1990's | 0 (0.00) | 18.2507 |
2000's | 3 (8.57) | 29.6817 |
2010's | 30 (85.71) | 24.3611 |
2020's | 2 (5.71) | 2.80 |
Authors | Studies |
---|---|
Richards, K | 1 |
Morrison, J | 1 |
Wang, YY | 1 |
Rangel, A | 1 |
Loera, A | 1 |
Hanlon, A | 1 |
Lozano, A | 1 |
Kovach, C | 1 |
Gooneratne, N | 1 |
Fry, L | 1 |
Allen, R | 1 |
Inoue, Y | 3 |
Hirata, K | 3 |
Hoshino, Y | 1 |
Yamaguchi, Y | 1 |
Faulkner, MA | 2 |
Winkelman, JW | 2 |
Jaros, MJ | 6 |
Garcia-Borreguero, D | 2 |
Cano-Pumarega, I | 1 |
Garcia Malo, C | 1 |
Cruz Velarde, JA | 1 |
Granizo, JJ | 1 |
Wanner, V | 1 |
Fujishiro, H | 1 |
Earley, CJ | 1 |
Toro, BE | 1 |
Sun, Y | 1 |
van Valkenhoef, G | 1 |
Morel, T | 1 |
Bogan, RK | 3 |
Lee, DO | 3 |
Buchfuhrer, MJ | 2 |
Kim, R | 5 |
Shang, G | 5 |
Avidan, AY | 2 |
Lee, D | 1 |
Park, M | 1 |
Hermanowicz, N | 1 |
Ellenbogen, A | 1 |
Irving, G | 1 |
Buchfuhrer, M | 1 |
Kim, ES | 1 |
Deeks, ED | 1 |
Ahmed, M | 2 |
Hays, R | 2 |
Ondo, WG | 1 |
Steven Poceta, J | 1 |
Merlino, G | 3 |
Serafini, A | 2 |
Young, JJ | 1 |
Robiony, F | 1 |
Gigli, GL | 3 |
Valente, M | 3 |
Kushida, CA | 3 |
Becker, PM | 1 |
Ellenbogen, AL | 1 |
Canafax, DM | 2 |
Barrett, RW | 5 |
Walters, AS | 2 |
Becker, P | 1 |
Thein, SG | 1 |
Perkins, AT | 2 |
Roth, T | 1 |
Canafax, D | 1 |
Lorenzut, S | 2 |
Sommaro, M | 1 |
Bornemann, MA | 1 |
Trân, PV | 1 |
Imamura, S | 1 |
Kushida, C | 1 |
Bhanegaonkar, A | 1 |
Bharmal, M | 1 |
Calloway, M | 1 |
Schmidt, MH | 1 |
Hudson, JD | 1 |
DeRossett, SE | 1 |
Hill-Zabala, CE | 1 |
Ziman, RB | 1 |
Poceta, JS | 1 |
Uchimura, N | 2 |
Kuroda, K | 2 |
Hattori, N | 2 |
Burke, RA | 1 |
Hayes, WJ | 1 |
Lemon, MD | 1 |
Farver, DK | 1 |
de Biase, S | 1 |
VanMeter, SA | 1 |
Kavanagh, ST | 1 |
Warren, S | 1 |
Aurora, RN | 1 |
Kristo, DA | 1 |
Bista, SR | 1 |
Rowley, JA | 1 |
Zak, RS | 1 |
Casey, KR | 1 |
Lamm, CI | 1 |
Tracy, SL | 1 |
Rosenberg, RS | 1 |
Kakimoto, S | 1 |
Ozawa, T | 1 |
Igarashi, K | 1 |
Tokuno, T | 1 |
Kaku, S | 1 |
Seki, N | 1 |
Takeuchi, M | 1 |
Scott, LJ | 1 |
Lal, R | 1 |
Sukbuntherng, J | 1 |
Luo, W | 1 |
Tovera, J | 1 |
Lassauzet, ML | 1 |
Cundy, KC | 1 |
Trial | Phase | Enrollment | Study Type | Start Date | Status | ||
---|---|---|---|---|---|---|---|
Nighttime Agitation and Restless Legs Syndrome in People With Alzheimer's Disease[NCT03082755] | Phase 4 | 156 participants (Anticipated) | Interventional | 2017-07-01 | Recruiting | ||
A Randomized, Double-Blind, Placebo-Controlled Study to Assess the Efficacy and Safety of XP13512 in Patients With Restless Legs Syndrome.[NCT00298623] | Phase 3 | 222 participants (Actual) | Interventional | 2006-03-31 | Completed | ||
A Randomized, Double-Blind, Placebo-Controlled, Dose-Response Study to Assess the Efficacy, Safety, and Pharmacokinetics of XP13512 (GSK1838262) in Patients With Restless Legs Syndrome[NCT01332305] | Phase 2 | 217 participants (Actual) | Interventional | 2007-01-31 | Completed | ||
A Randomized, Double-Blind, Placebo-Controlled Study to Assess the Efficacy and Safety of XP13512 in Patients With Restless Legs Syndrome.[NCT00365352] | Phase 3 | 325 participants (Actual) | Interventional | 2006-08-31 | Completed | ||
A Long-Term Study of XP13512 Versus Placebo Treatment Assessing Maintenance of Efficacy and Safety in Patients With Restless Legs Syndrome.[NCT00311363] | Phase 3 | 327 participants (Actual) | Interventional | 2006-04-30 | Completed | ||
ASP8825 Phase ⅡStudy-A Randomized, Double-Blind, Placebo-Controlled Study to Assess the Efficacy and Safety of ASP8825 in Patients With Restless Legs Syndrome[NCT00530530] | Phase 2 | 474 participants (Actual) | Interventional | 2007-09-30 | Completed | ||
[information is prepared from clinicaltrials.gov, extracted Sep-2024] |
The area under the plot of plasma concentration of drug against time after drug administration is defined as the area under the curve (AUC). The AUCss is the area under the curve during the steady-state period. The AUCss is of particular use in estimating the bioavailability of drugs, by measuring the extent of absorption. AUCss used concentration data from 0 to 24 hours at steady-state for Weeks 4 and 12. (NCT01332305)
Timeframe: Weeks 4 and 12
Intervention | ng*hour/ml (Mean) | |
---|---|---|
Week 4, n=0, 38, 33, 33, 35 | Week 12, n=0, 32, 30, 30, 30 | |
GEn 1200 mg | 96.1 | 95.7 |
GEn 1800 mg | 141 | 146 |
GEn 2400 mg | 176 | 173 |
GEn 600 mg | 49.3 | 51.4 |
"Css, max is defined as the maximum or peak concentration of a drug observed after multiple administration, at steady state. Css, max is one of the parameters of particular use in estimating the bioavailability of drugs, by measuring the total amount of drug absorbed. Css, min is defined as the minimum concentration of a drug observed after its administration, in steady state. ng, nanograms; PK, pharmacokinetic; W, week; BLQ, below limit of quantitation." (NCT01332305)
Timeframe: Weeks 4 and 12
Intervention | nanograms per milliliter (ng/ml) (Mean) | |||
---|---|---|---|---|
Css, max; Week 4, n=0, 39, 33, 33, 36 | Css, max; Week 12, n=0, 32, 30, 30, 31 | Css, min; Week 4, n=0, 39, 33, 33, 36 | Css, min; Week 12, n=0, 32, 30, 30, 31 | |
GEn 1200 mg | 7.14 | 7.15 | 1.37 | 1.32 |
GEn 1800 mg | 11.4 | 12.0 | 1.63 | 1.60 |
GEn 2400 mg | 14.0 | 13.3 | 2.34 | 2.41 |
GEn 600 mg | 3.86 | 4.14 | 0.690 | 0.600 |
"Tmax is defined as the time to the maximum or peak concentration of a drug observed after multiple administration. T1/2 is defined as the time to when half of the total amount of a particular substance is eliminated from the body." (NCT01332305)
Timeframe: Weeks 4 and 12
Intervention | hours (Mean) | |||
---|---|---|---|---|
Tmax; Week 4, n=0, 39, 33, 33, 36 | Tmax; Week 12, n=0, 32, 30, 30, 31 | T1/2; Week 4, n=0, 38, 33, 33, 35 | T1/2, Week 12, n=0, 32, 30, 30, 30 | |
GEn 1200 mg | 8.57 | 8.72 | 6.67 | 6.63 |
GEn 1800 mg | 7.61 | 8.00 | 5.82 | 5.89 |
GEn 2400 mg | 8.01 | 8.13 | 6.05 | 6.09 |
GEn 600 mg | 8.76 | 6.96 | 5.82 | 6.27 |
"The investigator -rated Clinical Global Impression of Improvement (CGI-I) scale is an assessment designed to allow investigators to rate the change of a participant's disease severity over time based on a seven-point scale, with a score of 1 being very much improved, a score of 2 being much improved, a score of 3 being minimally improved, a score of 4 being no change, a score of 5 being minimally improved,a score of 6 being much worse, and a score of 7 being very much worse. Participants with a response of much improved or very much improved were classified as responders." (NCT00365352)
Timeframe: Week 12
Intervention | participants (Number) |
---|---|
Placebo | 43 |
GEn (XP13512/GSK1838262) 1200 mg | 86 |
The International Restless Legs Syndrome (IRLS) Rating scale is a measure of RLS disease severity. The scale reflects the participant-reported assessment of primary sensory and motor features and associated sleep problems in RLS. Ten items (individually scored from 0 to 4) are included that assess the impact of symptoms on participants' mood, daily life, and activities. The total scale score is a sum of all of the individual item scores and ranges from 0-40 points, with 40 being the most severe. The scale assesses symptoms over the week prior to measurement. (NCT00365352)
Timeframe: Baseline and Week 12
Intervention | scores on a scale (Mean) |
---|---|
Placebo | -9.8 |
GEn (XP13512/GSK1838262) 1200 mg | -13.0 |
"The MOS Sleep Scale measures most constructs of sleep. The scale has a battery of questions to measure specific aspects of sleep in participants with co-morbidities. The four domains scored from the MOS Sleep Scale were sleep disturbance,' sleep quantity,' sleep adequacy, and daytime somnolence. The scores of the sleep adequacy domain ranged from 1 to 100, with a high score indicating greater adequacy. The assessment was completed at Baseline (Day 1) and end of Weeks, 4, 8, and 12 (or end of Treatment)." (NCT00365352)
Timeframe: Basline and Week 12
Intervention | scores on a scale (Mean) |
---|---|
Placebo | 13.6 |
GEn (XP13512/GSK1838262) 600 mg | 29.1 |
GEn (XP13512/GSK1838262) 1200 mg | 27.7 |
"The MOS Sleep Scale measures most constructs of sleep. The scale has a battery of questions to measure specific aspects of sleep in participants with co-morbidities. The four domains scored from the MOS Sleep Scale were sleep disturbance,' sleep quantity,' sleep adequacy, and daytime somnolence. The scores of the sleep quantity domain were measured in time (number of hours of sleep each night). The assessment was completed at Baseline (Day 1) and end of Weeks, 4, 8, and 12 (or end of Treatment)." (NCT00365352)
Timeframe: Baseline and Week 12
Intervention | hours (Mean) |
---|---|
Placebo | 0.3 |
GEn (XP13512/GSK1838262) 600 mg | 0.6 |
GEn (XP13512/GSK1838262) 1200 mg | 0.8 |
The Daily RLS pain score was assessed by participants reporting whether they experienced any pain associated with RLS in the last 24 hours and rating their pain levels on an 11-point numerical rating scale, with 0 being no pain and 10 the most intense pain imaginable. The assessment was performed for 7 days prior to Baseline and pre-defined study visits. The change from baseline was calculated as the End of Treatment (Week 12) value minus the Baseline (Day 1) value. (NCT00365352)
Timeframe: Baseline and End of Treatment (Week 12)
Intervention | scores on a scale (Mean) |
---|---|
Placebo | -1.7 |
GEn (XP13512/GSK1838262) 600 mg | -2.5 |
GEn (XP13512/GSK1838262) 1200 mg | -2.6 |
The Average Daily RLS pain was assessed by participants reporting whether they experienced any pain associated with RLS in the last 24 hours and rating their pain levels on an 11-point numerical rating scale, with 0 being no pain and 10 the most intense pain imaginable. The assessment was performed for 7 days prior to Baseline and pre-defined visits. The change from baseline was calculated as the End of Treatment (Week 12) value minus the Baseline (Day 1) value. (NCT00365352)
Timeframe: Baseline and Week 12
Intervention | scores on a scale (Mean) |
---|---|
Placebo | -2.3 |
GEn (XP13512/GSK1838262) 600 mg | -3.5 |
GEn (XP13512/GSK1838262) 1200 mg | -3.5 |
"The MOS Sleep Scale measures most constructs of sleep. The scale has a battery of questions to measure specific aspects of sleep in participants with co-morbidities. The four domains scored from the MOS Sleep Scale were sleep disturbance,' sleep quantity,' sleep adequacy, and daytime somnolence. The scores of the daytime somnolence domain ranged from 1 to 100, with a high score indicating greater daytime somnolence. The assessment was completed at Baseline (Day 1) and end of Weeks, 4, 8, and 12 (or end of Treatment)." (NCT00365352)
Timeframe: Baseline and Week 12
Intervention | scores on a scale (Mean) |
---|---|
Placebo | -9.7 |
GEn (XP13512/GSK1838262) 600 mg | -9.8 |
GEn (XP13512/GSK1838262) 1200 mg | -16.1 |
The Restless Legs Syndrome Quality of Life (RLS-QoL) questionnaire is a disease-specific, participant-rated questionnaire that assesses the impact of RLS on daily life, emotional well-being, social life, and work life of the participants. The RLS-QoL Questionnaire is presented on a 0 (lowest possible score) to 100 (highest possible score) scale. It was completed at Day 1 and at the end of Weeks 4, 8, and 12 (or Early Termination). (NCT00365352)
Timeframe: Baseline and Week 12
Intervention | scores on a scale (Mean) |
---|---|
Placebo | 14.5 |
GEn (XP13512/GSK1838262) 600 mg | 19.3 |
GEn (XP13512/GSK1838262) 1200 mg | 20.4 |
"The Profile of Mood States (POMS) Brief Form contains 30 adjectives; each participant is asked to rate the degree to which each adjective describes themselves based on how they felt during the past week including the date on which the adjective was rated. The possible ratings range from 0 (Not all all) to 4 (Extremely). The Total Mood Disturbance Score (range of 0 to 120) is obtained by summing the values of six domains. Higher scores indicate a more negative mood disturbance. The POMS was completed at Baseline (Day 1), and at the end of Weeks 4, 8, and 12 (or Early Termination)." (NCT00365352)
Timeframe: Baseline to End of Treatment (Week 12)
Intervention | scores on a scale (Mean) |
---|---|
Placebo | -7.3 |
GEn (XP13512/GSK1838262) 600 mg | -10.9 |
GEn (XP13512/GSK1838262) 1200 mg | -11.5 |
"The MOS Sleep Scale measures most constructs of sleep. The scale has a battery of questions to measure specific aspects of sleep in participants with co-morbidities. The four domains scored from the MOS Sleep Scale were sleep disturbance,' sleep quantity,' sleep adequacy, and daytime somnolence. The scores of the sleep disturbance domain ranged from 1 to 100, with a high score indicating greater impairment of sleep. The assessment was completed at Baseline (Day 1) and end of Weeks, 4, 8, and 12 (or end of Treatment)." (NCT00365352)
Timeframe: Baseline and Week 12
Intervention | scores on a scale (Mean) |
---|---|
Placebo | -17.0 |
GEn (XP13512/GSK1838262) 600 mg | -29.5 |
GEn (XP13512/GSK1838262) 1200 mg | -30.7 |
The IRLS Rating scale is a measure of RLS disease severity. The scale reflects the participant-reported assessment of primary sensory and motor features and associated sleep problems in RLS. Items (individually scored from 0 to 4) are included that assess the impact of symptoms on participants' mood, daily life, and activities. The total scale score is a sum of all of the individual item scores and ranges from 0-40 points, with 40 being the most severe. The scale assesses symptoms over the week prior to measurement. (NCT00365352)
Timeframe: Baseline (Day 1) and End of Treatment (Week 12)
Intervention | scores on a scale (Mean) |
---|---|
Placebo | -9.8 |
GEn (XP13512/GSK1838262) 600 mg | -13.8 |
Average daily total sleep time was derived from the Pittsburgh Sleep Diary (PghSD; an instrument with separate components to be completed [self-reported] at bedtime and waketime) as the mean of non-missing total sleep time over the 7 days before each visit, where total sleep time = [(wake up time - lights out time) - time to fall asleep - time awake during the night] in hours. The change was calculated as the end of treatment (Week 12) value minus the Baseline value. (NCT00365352)
Timeframe: Baseline to End of Treatment (Week 12)
Intervention | hours (Mean) |
---|---|
Placebo | 0.6 |
GEn (XP13512/GSK1838262) 600 mg | 0.7 |
GEn (XP13512/GSK1838262) 1200 mg | 1.0 |
Average daily wake time after sleep onset was derived from the Pittsburgh Sleep Diary (PghSD) as the mean of non-missing total hours awake during the night after falling asleep over the 7 days before each visit. The change was calculated as the end of treatment (Week 12) value minus the Baseline value. (NCT00365352)
Timeframe: Baseline to End of Treatment (Week 12)
Intervention | minutes (Mean) |
---|---|
Placebo | -12.5 |
GEn (XP13512/GSK1838262) 600 mg | -16.4 |
GEn (XP13512/GSK1838262) 1200 mg | -18.5 |
The IRLS Rating scale is a measure of RLS disease severity. The scale reflects the participant-reported assessment of primary sensory and motor features and associated sleep problems in RLS. Items (individually scored from 0 to 4) are included that assess the impact of symptoms on participants' mood, daily life, and activities. The total scale score is a sum of all of the individual item scores and ranges from 0-40 points, with 40 being the most severe. The scale assesses symptoms over the week prior to measurement. (NCT00365352)
Timeframe: Baseline and the End of Week 1
Intervention | scores on a scale (Mean) |
---|---|
Placebo | -6.0 |
GEn (XP13512/GSK1838262) 600 mg | -9.8 |
GEn (XP13512/GSK1838262) 1200 mg | -8.7 |
"The CGI-I scale is a standardized tool that is widely used in psychopharmacologic trials. For the CGI-I, the investigator was asked to rate the participant's overall change in RLS symptoms from Baseline. Scores ranged from 1 (very much improved) to 7 (very much worse). Participants who were much improved (score of 2) or very much improved on the CGI-I scale at the end of treatment (Week 12) are classified as Responders." (NCT00365352)
Timeframe: Week 12
Intervention | participants (Number) |
---|---|
Placebo | 43 |
GEn (XP13512/GSK1838262) 600 mg | 83 |
"The IRLS Rating scale is a measure of RLS disease severity. Items (individually scored from 0 to 4) are included that assess the impact of symptoms on participants' mood, daily life, and activities. The total scale score is a sum of all of the individual item scores and ranges from 0-40 points, with 40 being the most severe. Response was defined by an IRLS Rating Scale total score at the end of Week 1 < 15 and at least a 6-point reduction from the participant's Baseline score and an investigator-rated CGI-I response of much improved or very much improved." (NCT00365352)
Timeframe: End of Week 1
Intervention | participants (Number) |
---|---|
Placebo | 13 |
GEn (XP13512/GSK1838262) 600 mg | 36 |
GEn (XP13512/GSK1838262) 1200 mg | 40 |
The Mood Assessment is a non-disease-specific question surveying global change in a participant's overall mood. Participants were asked to rate their overall change in mood since the start of the study by choosing a score in a range from 1 (Very Much Improved) to 7 (Very Much Worse). The assessment was completed at Day 1 and the ends of Weeks 4, 8, and 12 or (Early Termination). (NCT00365352)
Timeframe: Week 12
Intervention | participants (Number) |
---|---|
Placebo | 19 |
GEn (XP13512/GSK1838262) 600 mg | 35 |
GEn (XP13512/GSK1838262) 1200 mg | 39 |
"The Post-Sleep Questionnaire (PSQ) was designed to evaluate overall sleep quality, ability to function, and RLS symptoms' interference with sleep over the past week. Participants were asked to rate overall sleep quality (as either Excellent, Reasonable, or Poor), ability to function, number of nights with RLS symptoms, number of nights awakened by RLS symptoms, and the number of hours spent awake due to RLS symptoms over the past week." (NCT00365352)
Timeframe: End of Treatment (Week 12)
Intervention | participants (Number) |
---|---|
Placebo | 14 |
GEn (XP13512/GSK1838262) 600 mg | 24 |
GEn (XP13512/GSK1838262) 1200 mg | 30 |
"The CGI-I scale is a standardized tool that is widely used in psychopharmacologic trials. For the CGI-I, the investigator was asked to rate the participant's overall change in RLS symptoms from Baseline. Scores ranged from 1 (very much improved) to 7 (very much worse). Participants who were much improved (score of 2) or very much improved on the CGI-I scale at the end of treatment (Week 12) are classified as Responders." (NCT00365352)
Timeframe: End of Week 1
Intervention | responders (Number) |
---|---|
Placebo | 26 |
GEn (XP13512/GSK1838262) 600 mg | 54 |
GEn (XP13512/GSK1838262) 1200 mg | 59 |
The Response was defined by an IRLS Rating Scale total score at the end of Week 1 < 15 and at least a 6-point reduction from the participant's Baseline score and an investigator-rated CGI-I response of much improved or very much improved. The median time to onset is estimated using the product-limit estimation method. (NCT00365352)
Timeframe: Baseline (Day 1) to End of Treatment (Week 12)
Intervention | weeks (Median) |
---|---|
Placebo | NA |
GEn (XP13512/GSK1838262) 600 Milligrams(mg) Taken Orally | 4.1 |
GEn (XP13512/GSK1838262) 1200 mg Taken Orally Once a Day | 2.1 |
The time to onset of the first RLS symptoms from the 24-hour RLS Record is defined as the length of time from the start of the 24-hour assessment period (8:00 AM) to the time when 50% of participants experienced their first symptom. (NCT00365352)
Timeframe: Week 12
Intervention | hours (Median) |
---|---|
Placebo | 12.8 |
GEn (XP13512/GSK1838262) 600 mg | 13.5 |
GEn (XP13512/GSK1838262) 1200 mg | 13.8 |
The IRLS Rating scale is a measure of RLS disease severity. The scale reflects the participant-reported assessment of primary sensory and motor features and associated sleep problems in RLS. Ten items (individually scored from 0 to 4) are included that assess the impact of symptoms on participants' mood, daily life, and activities. The total scale score is a sum of all of the individual item scores and ranges from 0-40 points, with 40 being the most severe. The scale assesses symptoms over the week prior to measurement. (NCT00365352)
Timeframe: Baseline (Day 1) and Week 12
Intervention | scores on a scale (Mean) | |||
---|---|---|---|---|
IRLS Total Score < 17.5 | IRLS Total Score 17.5 to < 22.5 | IRLS Total Score 22.5 to < 27.5 | IRLS Total Score >= 27.5 | |
GEn (XP13512/GSK1838262) 1200 mg | -7.9 | -8.8 | -15.5 | -19.6 |
GEn (XP13512/GSK1838262) 600 mg | -8.9 | -11.9 | -15.1 | -18.2 |
Placebo | -6.3 | -8.5 | -9.6 | -13.3 |
The IRLS Rating scale is a measure of RLS disease severity. The scale reflects the participant-reported assessment of primary sensory and motor features and associated sleep problems in RLS. Ten items (individually scored from 0 to 4) are included that assess the impact of symptoms on participants' mood, daily life, and activities. The total scale score is a sum of all of the individual item scores and ranges from 0-40 points, with 40 being the most severe. The scale assesses symptoms over the week prior to measurement. (NCT00365352)
Timeframe: Baseline (Day 1) and Week 12
Intervention | scores on a scale (Mean) | ||
---|---|---|---|
No RLS Treatment History | Treatment terminated | Treatment within 1 month of study start | |
GEn (XP13512/GSK1838262) 1200 mg | -12.5 | -17.1 | -12.1 |
GEn (XP13512/GSK1838262) 600 mg | -13.7 | -12.4 | -14.6 |
Placebo | -8.8 | -13.3 | -10.7 |
"The CGI-I scale is a standardized tool that is widely used in psychopharmacologic trials. For the CGI-I, the investigator was asked to rate the participant's overall change in RLS symptoms from Baseline. Scores ranged from 1 (very much improved) to 7 (very much worse). Participants who were much improved (score of 2) or very much improved on the CGI-I scale at the end of treatment (Week 12) are classified as Responders." (NCT00365352)
Timeframe: Basline and Week 12
Intervention | participants (Number) | ||
---|---|---|---|
No RLS Treatment History | Treatment terminated | Treatment within 1 month of study start | |
GEn (XP13512/GSK1838262) 1200 mg | 57 | 13 | 15 |
GEn (XP13512/GSK1838262) 600 mg | 54 | 9 | 18 |
Placebo | 26 | 5 | 11 |
"The CGI-I scale is a standardized tool that is widely used in psychopharmacologic trials. For the CGI-I, the investigator was asked to rate the participant's overall change in RLS symptoms from Baseline. Scores ranged from 1 (very much improved) to 7 (very much worse). Participants who were much improved (score of 2) or very much improved on the CGI-I scale at the end of treatment (Week 12) are classified as Responders." (NCT00365352)
Timeframe: Week 1 and Week 12
Intervention | participants (Number) | |
---|---|---|
Responders at the End of Treatment (Week 12) | Responders at the End of One Week | |
GEn (XP13512/GSK1838262) 1200 mg | 83 | 52 |
GEn (XP13512/GSK1838262) 600 mg | 90 | 55 |
Placebo | 46 | 20 |
"The Mean Daily RLS pain was assessed by participants reporting whether they experienced any pain associated with RLS in the last 24 hours and rating their pain levels on an 11-point numerical rating scale, with 0 being no pain and 10 the most intense pain imaginable. The assessment was performed for 7 days prior to Baseline and pre-defined visits A Responder is a participant with a score of much improved or very much improved on the investigator rated CGI I Scale at the end of treatment (Week 12 using LOCF)." (NCT00365352)
Timeframe: Week 12
Intervention | participants (Number) | |
---|---|---|
> or equal to 30% response | > or equal to 50% response | |
GEn (XP13512/GSK1838262) 1200 mg | 76 | 66 |
GEn (XP13512/GSK1838262) 600 mg | 75 | 62 |
Placebo | 48 | 41 |
RLS severity ratings were summarized in 6 non-overlapping 4-hour periods beginning at 8 AM. A 4-hour period from 6 PM to 10 PM was also prospectively included to reflect the time frame when the most participants would experience their first symptoms of the day. (NCT00365352)
Timeframe: Week 12
Intervention | participants (Number) | ||||||
---|---|---|---|---|---|---|---|
8 AM to 12 PM | 12 PM to 4 PM | 4 PM to 8 PM | 6 PM to 10 PM | 8 PM to 12 AM | 12 AM to 4 AM | 4 AM to 8 AM | |
GEn (XP13512/GSK1838262) 1200 mg | 74 | 69 | 61 | 55 | 48 | 67 | 72 |
GEn (XP13512/GSK1838262) 600 mg | 85 | 74 | 68 | 55 | 49 | 74 | 79 |
Placebo | 52 | 51 | 45 | 39 | 27 | 38 | 56 |
The MOS Sleep Scale is a participant-rated non-disease-specific measure with questions relating to four areas related to sleep: quantity (number of hours slept), sleep disturbance, sleep adequacy, and somnolence. The Sleep Quantity Domain score is a participant-rated estimate of the average number of hours of sleep per night over the month. (NCT00311363)
Timeframe: Baseline and Day 168 or Week 24/End of Treatment of SB Treatment Phase
Intervention | hours (Mean) |
---|---|
SB GEn 1200 mg | 1.0 |
The RLS QoL is an 18-item scale assessing the impact of RLS on daily life, emotional well-being, social and work life. Responses range from 1 (not at all/never) to 5 (a lot/all of the time). Ten items contribute to a single summary score, the Overall Life Impact, which is standardized to range from 0-100, with lower scores representing better QoL. (NCT00311363)
Timeframe: Baseline and Day 168 or Week 24/End of Treatment of SB Treatment Phase
Intervention | points on a scale (Mean) |
---|---|
SB GEn 1200 mg | 25.7 |
The MOS Sleep Scale is a participant-rated non-disease-specific measure with questions relating to four areas related to sleep: quantity (hours slept), sleep disturbance, sleep adequacy, and daytime somnolence. Responses are recoded so that a higher score reflects more of the attribute, and then converted to a 0 to 100 scale. The daytime somnolence score is based on questions pertaining to feeling drowsy or sleepy, trouble staying awake, and taking naps > 5 minutes. For daytime somnolence, a negative value indicates an improvement. (NCT00311363)
Timeframe: Baseline and Day 168 or Week 24/End of Treatment of SB Treatment Phase
Intervention | points on a scale (Mean) |
---|---|
SB GEn 1200 mg | -21.8 |
The MOS Sleep Scale is a participant-rated non-disease-specific measure with questions relating to four areas related to sleep: quantity (number of hours slept), sleep disturbance, sleep adequacy, and daytime somnolence. The MOS Sleep Scale sleep adequacy domain is a participant-rated measure of the adequacy of sleep over the month prior to measurement. Questions are scored, and responses are converted to a 0 to 100 scale, with higher scores representing more adequate ratings of sleep. (NCT00311363)
Timeframe: Baseline and Day 168 or Week 24/End of Treatment of SB Treatment Phase
Intervention | points on a scale (Mean) |
---|---|
SB GEn 1200 mg | 35.7 |
The MOS Sleep Scale is a participant-rated non-disease-specific measure with questions relating to four areas related to sleep: quantity (number of hours slept), sleep disturbance, sleep adequacy, and daytime somnolence. . The MOS Sleep Scale sleep disturbance domain is a participant-rated measure of sleep disturbance over the month prior to the measurement. Questions are scored, and responses are converted to a 0 to 100 scale, with lower scores representing less sleep disturbance. (NCT00311363)
Timeframe: Baseline and Day 168 or Week 24/End of Treatment of SB Treatment Phase
Intervention | points on a scale (Mean) |
---|---|
SB GEn 1200 mg | -35.3 |
The 24-hour RLS Record is a diary in which participants report the presence and severity of RLS symptoms (none, mild, moderate, or severe) for a 24-hour period, in 30-min increments beginning at 8AM on the day prior to the visit. Note: The median is not estimable with Kaplan-Meier methodology when fewer than 50% of participants experience an event; thus, no data are presented for the DB GEn 1200 mg arm. (NCT00311363)
Timeframe: Week 36 (or end of DB treatment)
Intervention | hours (Median) |
---|---|
DB Placebo | 14.5 |
"Relapse was defined as worsening of Restless Legs Syndrome (RLS) symptoms or withdrawal due to lack of efficacy during the 12-week double-blind (DB) treatment period (the period from Randomization on Visit 14 [Week 24] through the end of treatment). Worsening of symptoms was defined as an increase in the total International RLS (IRLS) Scale score by at least 6 or more points relative to the participant's score at Randomization, achieving an IRLS score of at least 15, and an assessment of much worse or very much worse on the investigator-rated Clinical Global Impression of Change (CGI-C)." (NCT00311363)
Timeframe: DB Treatment Period; Days 169 to 252 (Weeks 24 to 36)
Intervention | percentage of participants (Number) |
---|---|
DB Placebo | 22.7 |
DB GEn 1200 mg | 9.4 |
"The CGI-C scale is a widely used tool designed to allow clinicians to rate the severity of illness and the change over time based on a seven-point rating scale, with a score of 1 being very much improved and a score of 7 being very much worse compared to baseline. For this endpoint, response on the CGI-C was defined as participants with a rating of no change, (score of 4) minimally improved, (score of 3) much improved, (score of 2) or very much improved (score of 1) compared to Randomization (Week 24)." (NCT00311363)
Timeframe: Randomization (Week 24) and Week 36 (or end of DB treatment)
Intervention | percentage of participants (Number) |
---|---|
DB Placebo | 67 |
DB GEn 1200 mg | 75 |
"The participant-rated CGI-I scale is a self-rated assessment designed to allow participants to rate the change of their disease severity over time based on a seven-point scale, with a score of 1 being very much improved, and a score of 7 being very much worse. Response on the participant-rated CGI-I was defined as a rating of very much improved (score of 1) or much improved (score of 2) compared to Baseline of the SB phase." (NCT00311363)
Timeframe: Week 36 (or end of DB treatment)
Intervention | percentage of participants (Number) |
---|---|
DB Placebo | 79.4 |
DB GEn 1200 mg | 87.5 |
The MOS Sleep Scale is a participant-rated non-disease-specific measure with questions relating to four areas related to sleep: quantity (number of hours slept), sleep disturbance, sleep adequacy, and daytime somnolence. The MOS Sleep Scale sleep adequacy domain is a participant-rated measure of the adequacy of sleep over the month prior to measurement. Questions are scored, and responses are converted to a 0 to 100 scale, with higher scores representing more adequate ratings of sleep. (NCT00311363)
Timeframe: Randomization (Week 24) and Week 36 (or end of DB treatment)
Intervention | points on a scale (Mean) | ||
---|---|---|---|
Randomization | Week 36 | Change from Randomization to Week 36 | |
DB GEn 1200 mg | 74.6 | 70.3 | -4.3 |
DB Placebo | 73.3 | 61.6 | -11.6 |
The MOS Sleep Scale is a participant-rated non-disease-specific measure with questions relating to four areas related to sleep: quantity (number of hours slept), sleep disturbance, sleep adequacy, and daytime somnolence. The Sleep Quantity Domain score is a participant-rated estimate of the average number of hours of sleep per night over the month. (NCT00311363)
Timeframe: Randomization (Week 24) and Week 36 (or end of DB treatment)
Intervention | hours (Mean) | ||
---|---|---|---|
Randomization | Week 36 | Change from Randomization to Week 36 | |
DB Placebo | 7.0 | 6.8 | -0.2 |
GEn 1200 mg | 7.0 | 6.9 | -0.1 |
The RLS QoL is an 18-item scale assessing the impact of RLS on daily life, emotional well-being, social and work life. Responses range from 1 (not at all/never) to 5 (a lot/all of the time). Ten items contribute to a single summary score, the Overall Life Impact, which is standardized to range from 0-100, with lower scores representing better QoL. (NCT00311363)
Timeframe: Randomization (Week 24) and Week 36 (or end of DB treatment)
Intervention | points on a scale (Mean) | ||
---|---|---|---|
Randomization | Week 36 | Change from Randomization to Week 36 | |
DB GEn 1200 mg | 94.3 | 92.1 | -2.2 |
DB Placebo | 94.1 | 89.9 | -4.2 |
The IRLS Rating scale is a measure of disease severity. The scale reflects participant-reported assessment of sensory and motor features and associated sleep problems in RLS. In addition, items are included that assess the impact of symptoms on participants' mood, daily life, and activities. Total score ranges from 0-40 points, with 40 being the most severe. (NCT00311363)
Timeframe: Days 1 to 168 (Baseline to Week 24 of SB Phase)
Intervention | points on a scale (Mean) | ||
---|---|---|---|
Baseline | Week 24 | Change from Baseline to Week 24 | |
SB GEn 1200 mg | 24.7 | 9.2 | -15.5 |
The MOS Sleep Scale is a participant-rated non-disease-specific measure with questions relating to four areas related to sleep: quantity (hours slept), sleep disturbance, sleep adequacy, and daytime somnolence. Responses are recoded so that a higher score reflects more of the attribute, and then converted to a 0 to 100 scale. The daytime somnolence score is based on questions pertaining to feeling drowsy or sleepy, trouble staying awake, and taking naps > 5 minutes. For daytime somnolence, a negative value indicates an improvement. (NCT00311363)
Timeframe: Randomization (Week 24) and Week 36 (or end of DB treatment)
Intervention | points on a scale (Mean) | ||
---|---|---|---|
Randomization | Week 36 | Change from Randomization to Week 36 | |
DB GEn 1200 mg | 11.0 | 12.6 | 1.5 |
DB Placebo | 11.8 | 15.5 | 3.8 |
The MOS Sleep Scale is a participant-rated non-disease-specific measure with questions relating to four areas related to sleep: quantity (number of hours slept), sleep disturbance, sleep adequacy, and daytime somnolence. The MOS Sleep Scale sleep disturbance domain is a participant-rated measure of sleep disturbance over the month prior to the measurement. Questions are scored, and responses are converted to a 0 to 100 scale, with lower scores representing less sleep disturbance. (NCT00311363)
Timeframe: Randomization (Week 24) and Week 36 (or end of DB treatment)
Intervention | points on a scale (Mean) | ||
---|---|---|---|
Randomization | Week 36 | Change from Randomization to Week 36 | |
DB GEn 1200 mg | 18.8 | 21.0 | 2.3 |
DB Placebo | 16.7 | 26.9 | 10.2 |
The IRLS Rating scale is a measure of RLS disease severity and reflects the participant-reported assessment of primary sensory and motor features and associated sleep problems in RLS. Items are included that assess the impact of symptoms on participants' mood, daily life, and activities. The total score ranges from 0-40 points, with 40 being the most severe. The scale assesses symptoms over the week prior to measurement. LOCF: Missing data (MD) values were imputed using the last non-missing observation prior to the visit with MD; randomization visit data could be carried forward. (NCT00311363)
Timeframe: Randomization (Week 24) and Week 36 (or end of DB treatment)
Intervention | points on a scale (Mean) | ||
---|---|---|---|
Randomization | Week 36 | Mean change from Randomization to Week 36 | |
DB GEn 1200 mg | 5.1 | 7.0 | 1.9 |
DB Placebo | 5.3 | 9.2 | 3.9 |
"The CGI scale is a widely used tool designed to allow clinicians to rate the severity of illness and the change over time based on a seven-point rating scale, with a score of 1 being very much improved and a score of 7 being very much worse compared to baseline." (NCT00311363)
Timeframe: Randomization (Week 24) and Week 36 (or end of DB treatment)
Intervention | participants (Number) | ||||||
---|---|---|---|---|---|---|---|
Very much improved (score of 1) | Much improved (score of 2) | Minimally improved (score of 3) | No change (score of 4) | Minimally worse (score of 5) | Much worse (score of 6) | Very much worse (score of 7) | |
DB GEn 1200 mg | 10 | 3 | 15 | 44 | 13 | 9 | 2 |
DB Placebo | 4 | 5 | 12 | 44 | 14 | 11 | 7 |
"The CGI-I scale is a widely used tool designed to allow clinicians to rate the severity of illness and the change over time based on a seven-point rating scale, with a score of 1 being very much improved and a score of 7 being very much worse compared to baseline." (NCT00311363)
Timeframe: Baseline and Day 168 or Week 24/End of Treatment of SB Treatment Phase
Intervention | participants (Number) | ||||||
---|---|---|---|---|---|---|---|
Very Much Improved (score of 1) | Much Improved (score of 2) | Minimally Improved (score of 3) | No change (score of 4) | Minimally worse (score of 5) | Much Worse (score of 6) | Very Much Worse (score of 7) | |
SB GEn 1200 mg | 170 | 78 | 28 | 25 | 4 | 4 | 2 |
"The participant-rated CGI-I scale is a self-rated assessment designed to allow participants to rate the change of their disease severity over time based on a seven-point rating scale, with a score of 1 being very much improved and a score of 7 being very much worse compared to baseline." (NCT00311363)
Timeframe: Baseline and Day 168 or Week 24/End of Treatment of SB Treatment Phase
Intervention | participants (Number) | ||||||
---|---|---|---|---|---|---|---|
Very Much Improved (score of 1) | Much Improved (score of 2) | Minimally Improved (score of 3) | No Change (score of 4) | Minimally Worse (score of 5) | Much Worse (score of 6) | Very Much Worse (score of 7) | |
SB GEn 1200 mg | 163 | 82 | 38 | 16 | 7 | 0 | 2 |
"The participant-rated CGI-I scale is a self-rated assessment designed to allow participants to rate the change of their disease severity over time based on a seven-point scale, with a score of 1 being very much improved and a score of 7 being very much worse compared to baseline." (NCT00311363)
Timeframe: Week 36 (or end of DB treatment)
Intervention | participants (Number) | ||||||
---|---|---|---|---|---|---|---|
Very much improved (score of 1) | Much improved (score of 2) | Minimally improved (score of 3) | No change (score of 4) | Minimally worse (score of 5) | Much worse (score of 6) | Very much worse (score of 7) | |
DB GEn 1200 mg | 60 | 24 | 4 | 6 | 0 | 1 | 1 |
DB Placebo | 47 | 30 | 7 | 8 | 3 | 1 | 1 |
In the 24-hour RLS Record (diary), participants report the presence and severity of RLS symptoms (none, mild, moderate, or severe) for a 24-hour period, in 30-minute increments. The period was divided into 7 four-hr intervals (8 AM to 12 PM, 12 to 4 PM, 4 to 8 PM, 6 to 10 PM, 8 to Midnight, Midnight to 4 AM, 4 to 8 AM) (NCT00311363)
Timeframe: Week 36 (or end of DB treatment)
Intervention | participants (Number) | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
8 AM to 12 PM, Randomization, n=96, 95 | 8 AM to 12 PM, Week 36, n=87, 89 | 12 PM to 4 PM, Randomization, n=96, 95 | 12 PM to 4 PM, Week 36, n=87, 89 | 4 PM to 8 PM, Randomization, n=96, 95 | 4 PM to 8 PM, Week 36, n=87, 89 | 6 PM to 10 PM, Randomization, n=96, 95 | 6 PM to 10 PM, Week 36, n=87, 89 | 8 PM to 12 AM, Randomization, n=96, 95 | 8 PM to 12 AM, Week 36, n=87, 89 | 12 AM to 4 AM, Randomization, n=96, 95 | 12 AM to 4 AM, Week 36, n=87, 89 | 4 AM to 8 AM, Randomization, n=96, 95 | 4 AM to 8 AM, Week 36, n=87, 89 | |
DB GEn 1200mg | 88 | 83 | 85 | 78 | 68 | 72 | 61 | 62 | 59 | 61 | 79 | 77 | 83 | 80 |
DB Placebo | 83 | 72 | 85 | 71 | 73 | 68 | 66 | 53 | 62 | 41 | 82 | 66 | 83 | 67 |
"The PSQ is designed to evaluate sleep quality, ability to function, and the degree to which RLS symptoms interfere with sleep. Participants rated overall sleep quality and their ability to function on scales ranging from excellent to poor and were asked to provide the number of nights they experienced RLS symptoms and the number of times/hours they awoke at night during the week prior to the measurement." (NCT00311363)
Timeframe: Randomization (Week 24) and Week 36 (or end of DB treatment)
Intervention | participants (Number) | |||||||
---|---|---|---|---|---|---|---|---|
Randomization, Excellent | Randomization, Good | Randomization, Moderate | Randomization, Poor | Week 36, Excellent | Week 36, Good | Week 36, Moderate | Week 36, Poor | |
DB GEn 1200 mg | 63 | 28 | 4 | 1 | 53 | 32 | 8 | 3 |
DB Placebo | 53 | 42 | 2 | 0 | 44 | 43 | 9 | 1 |
"The PSQ is designed to evaluate sleep quality, ability to function, and the degree to which RLS symptoms interfere with sleep. Participants rated overall sleep quality and their ability to function on scales ranging from excellent to poor and were asked to provide the number of nights they experienced RLS symptoms and the number of times/hours they awoke at night during the week prior to the measurement." (NCT00311363)
Timeframe: Randomization (Week 24) and Week 36 (or end of DB treatment)
Intervention | participants (Number) | |||||
---|---|---|---|---|---|---|
Randomization, Excellent | Randomization, Reasonable | Randomization, Poor | Week 36, Excellent | Week 36, Reasonable | Week 36, Poor | |
DB GEn 1200 mg | 43 | 46 | 7 | 38 | 46 | 12 |
DB Placebo | 38 | 56 | 3 | 29 | 51 | 17 |
"The PSQ is designed to evaluate sleep quality, ability to function, and the degree to which RLS symptoms interfere with sleep. Participants rated overall sleep quality and their ability to function on scales ranging from excellent to poor and were asked to provide the number of nights they experienced RLS symptoms and the number of times/hours they awoke at night during the week prior to the measurement." (NCT00311363)
Timeframe: Baseline and Day 168 or Week 24/End of Treatment of SB Treatment Phase
Intervention | participants (Number) | |||||||
---|---|---|---|---|---|---|---|---|
Baseline, Excellent | Baseline, Good | Baseline, Moderate | Baseline, Poor | Week 24, Excellent | Week 24, Good | Week 24, Moderate | Week 24, Poor | |
SB GEn 1200 mg | 20 | 124 | 141 | 26 | 145 | 127 | 29 | 10 |
"The PSQ is designed to evaluate sleep quality, ability to function, and the degree to which RLS symptoms interfere with sleep. Participants rated overall sleep quality and their ability to function on scales ranging from excellent to poor and were asked to provide the number of nights they experienced RLS symptoms and the number of times/hours they awoke at night during the week prior to the measurement." (NCT00311363)
Timeframe: Randomization (Week 24) and Week 36 (or end of DB treatment)
Intervention | participants (Number) | |||||||
---|---|---|---|---|---|---|---|---|
Randomization, 0 times | Randomization, 1-2 times | Randomization, 3-4 times | Randomization, 5 or more times | Week 36, 0 times | Week 36, 1-2 times | Week 36, 3-4 times | Week 36, 5 or more times | |
DB GEn 1200 mg | 72 | 22 | 1 | 1 | 68 | 22 | 5 | 1 |
DB Placebo | 73 | 22 | 2 | 0 | 53 | 35 | 7 | 2 |
"The PSQ is designed to evaluate sleep quality, ability to function, and the degree to which RLS symptoms interfere with sleep. Participants rated overall sleep quality and their ability to function on scales ranging from excellent to poor and were asked to provide the number of nights they experienced RLS symptoms and the number of times/hours they awoke at night during the week prior to the measurement." (NCT00311363)
Timeframe: Baseline and Day 168 or Week 24/End of Treatment of SB Treatment Phase
Intervention | participants (Number) | |||||||
---|---|---|---|---|---|---|---|---|
Baseline, 0 times | Baseline, 1-2 times | Baseline, 3-4 times | Baseline, 5 or more times | Week 24, 0 times | Week 24, 1-2 times | Week 24, 3-4 times | Week 24, 5 or more times | |
SB GEn 1200 mg | 26 | 131 | 113 | 41 | 188 | 98 | 18 | 7 |
"The PSQ is designed to evaluate sleep quality, ability to function, and the degree to which RLS symptoms interfere with sleep. Participants rated overall sleep quality and their ability to function on scales ranging from excellent to poor and were asked to provide the number of nights they experienced RLS symptoms and the number of times/hours they awoke at night during the week prior to the measurement." (NCT00311363)
Timeframe: Baseline and Day 168 or Week 24/End of Treatment of SB Treatment Phase
Intervention | participants (Number) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Baseline, 0 hours (hr) | Baseline, less than 1 hr | Baseline, 1 hr to less than 2 hr | Baseline, 2 hr to less than 3 hr | Baseline, 3 or more hr | Week 24, 0 hr | Week 24, less than 1 hr | Week 24, 1 hr to less than 2 hr | Week 24, 2 hr to less than 3 hr | Week 24, 3 or more hr | |
SB GEn 1200 mg | 26 | 78 | 107 | 60 | 40 | 188 | 63 | 37 | 17 | 6 |
"The PSQ is designed to evaluate sleep quality, ability to function, and the degree to which RLS symptoms interfere with sleep. Participants rated overall sleep quality and their ability to function on scales ranging from excellent to poor and were asked to provide the number of nights they experienced RLS symptoms and the number of times/hours they awoke at night during the week prior to the measurement." (NCT00311363)
Timeframe: Randomization (Week 24) and Week 36 (or end of DB treatment)
Intervention | participants (Number) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Randomization, 0 hours (hr) | Randomization, less than 1 hr | Randomization, 1 hr to less than 2 hr | Randomization, 2 hr to less than 3 hr | Randomization, 3 or more hr | Week 36, 0 hr | Week 36, less than 1 hr | Week 36, 1 hr to less than 2 hr | Week 36, 2 hr to less than 3 hr | Week 36, 3 or more hr | |
DB GEn 1200 mg | 72 | 16 | 5 | 3 | 0 | 68 | 17 | 8 | 3 | 0 |
DB Placebo | 73 | 14 | 7 | 2 | 1 | 53 | 24 | 15 | 2 | 3 |
"The PSQ is designed to evaluate sleep quality, ability to function, and the degree to which RLS symptoms interfere with sleep. Participants rated overall sleep quality and their ability to function on scales ranging from excellent to poor and were asked to provide the number of nights they experienced RLS symptoms and the number of times/hours they awoke at night during the week prior to the measurement." (NCT00311363)
Timeframe: Baseline and Day 168 or Week 24/End of Treatment of SB Treatment Phase
Intervention | participants (Number) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Baseline, 0 nights | Baseline, 1-2 nights | Baseline 3-4 nights | Baseline 5-6 nights | Baseline, 7 nights | Week 24, 0 nights | Week 24, 1-2 nights | Week 24, 3-4 nights | Week 24, 5-6 nights | Week 24, 7 nights | |
SB GEn 1200 mg | 1 | 1 | 36 | 122 | 151 | 106 | 98 | 37 | 24 | 46 |
"The PSQ is designed to evaluate sleep quality, ability to function, and the degree to which RLS symptoms interfere with sleep. Participants rated overall sleep quality and their ability to function on scales ranging from excellent to poor and were asked to provide the number of nights they experienced RLS symptoms and the number of times/hours they awoke at night during the week prior to the measurement." (NCT00311363)
Timeframe: Randomization (Week 24) and Week 36 (or end of DB treatment)
Intervention | participants (Number) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Randomization, 0 nights | Randomization, 1-2 nights | Randomization, 3-4 nights | Randomization, 5-6 nights | Randomization, 7 nights | Week 36, 0 nights | Week 36, 1-2 nights | Week 36, 3-4 nights | Week 36, 5-6 nights | Week 36, 7 nights | |
DB GEn 1200 mg | 38 | 36 | 11 | 5 | 6 | 41 | 30 | 12 | 6 | 7 |
DB Placebo | 47 | 35 | 8 | 3 | 4 | 30 | 30 | 17 | 6 | 14 |
"The PSQ is designed to evaluate sleep quality, ability to function, and the degree to which RLS symptoms interfere with sleep. Participants rated overall sleep quality and their ability to function on scales ranging from excellent to poor and were asked to provide the number of nights they experienced RLS symptoms and the number of times/hours they awoke at night during the week prior to the measurement." (NCT00311363)
Timeframe: Baseline and Day 168 or Week 24/End of Treatment of SB Treatment Phase
Intervention | participants (Number) | |||||
---|---|---|---|---|---|---|
Baseline, Excellent | Baseline, Reasonable | Baseline, Poor | Week 24, Excellent | Week 24, Reasonable | Week 24, Poor | |
SB GEn 1200 mg | 3 | 97 | 211 | 102 | 164 | 45 |
14 reviews available for carbamates and Restless Legs Syndrome
Article | Year |
---|---|
Use of α2δ Ligands for Restless Legs Syndrome/Willis Ekbom Disease.
Topics: Animals; Anticonvulsants; Calcium Channels; Carbamates; Gabapentin; gamma-Aminobutyric Acid; Humans; | 2018 |
Latest guidelines and advances for treatment of restless legs syndrome.
Topics: Amines; Analgesics, Opioid; Carbamates; Cyclohexanecarboxylic Acids; Dopamine Agonists; Gabapentin; | 2014 |
New treatment options for the management of restless leg syndrome.
Topics: Administration, Cutaneous; Adolescent; Adult; Aged; Carbamates; Controlled Clinical Trials as Topic; | 2014 |
Gabapentin Enacarbil: A Review in Restless Legs Syndrome.
Topics: Carbamates; Dose-Response Relationship, Drug; Double-Blind Method; gamma-Aminobutyric Acid; Humans; | 2016 |
Effect of Gabapentin Enacarbil on Individual Items of the International Restless Legs Study Group Rating Scale and Post-sleep Questionnaire in Adults with Moderate-to-Severe Primary Restless Legs Syndrome: Pooled Analysis of 3 Randomized Trials.
Topics: Carbamates; Dizziness; Double-Blind Method; Fatigue; gamma-Aminobutyric Acid; Humans; Randomized Con | 2016 |
Effect of Gabapentin Enacarbil on Individual Items of the International Restless Legs Study Group Rating Scale and Post-sleep Questionnaire in Adults with Moderate-to-Severe Primary Restless Legs Syndrome: Pooled Analysis of 3 Randomized Trials.
Topics: Carbamates; Dizziness; Double-Blind Method; Fatigue; gamma-Aminobutyric Acid; Humans; Randomized Con | 2016 |
Effect of Gabapentin Enacarbil on Individual Items of the International Restless Legs Study Group Rating Scale and Post-sleep Questionnaire in Adults with Moderate-to-Severe Primary Restless Legs Syndrome: Pooled Analysis of 3 Randomized Trials.
Topics: Carbamates; Dizziness; Double-Blind Method; Fatigue; gamma-Aminobutyric Acid; Humans; Randomized Con | 2016 |
Effect of Gabapentin Enacarbil on Individual Items of the International Restless Legs Study Group Rating Scale and Post-sleep Questionnaire in Adults with Moderate-to-Severe Primary Restless Legs Syndrome: Pooled Analysis of 3 Randomized Trials.
Topics: Carbamates; Dizziness; Double-Blind Method; Fatigue; gamma-Aminobutyric Acid; Humans; Randomized Con | 2016 |
Effect of Gabapentin Enacarbil on Individual Items of the International Restless Legs Study Group Rating Scale and Post-sleep Questionnaire in Adults with Moderate-to-Severe Primary Restless Legs Syndrome: Pooled Analysis of 3 Randomized Trials.
Topics: Carbamates; Dizziness; Double-Blind Method; Fatigue; gamma-Aminobutyric Acid; Humans; Randomized Con | 2016 |
Effect of Gabapentin Enacarbil on Individual Items of the International Restless Legs Study Group Rating Scale and Post-sleep Questionnaire in Adults with Moderate-to-Severe Primary Restless Legs Syndrome: Pooled Analysis of 3 Randomized Trials.
Topics: Carbamates; Dizziness; Double-Blind Method; Fatigue; gamma-Aminobutyric Acid; Humans; Randomized Con | 2016 |
Effect of Gabapentin Enacarbil on Individual Items of the International Restless Legs Study Group Rating Scale and Post-sleep Questionnaire in Adults with Moderate-to-Severe Primary Restless Legs Syndrome: Pooled Analysis of 3 Randomized Trials.
Topics: Carbamates; Dizziness; Double-Blind Method; Fatigue; gamma-Aminobutyric Acid; Humans; Randomized Con | 2016 |
Effect of Gabapentin Enacarbil on Individual Items of the International Restless Legs Study Group Rating Scale and Post-sleep Questionnaire in Adults with Moderate-to-Severe Primary Restless Legs Syndrome: Pooled Analysis of 3 Randomized Trials.
Topics: Carbamates; Dizziness; Double-Blind Method; Fatigue; gamma-Aminobutyric Acid; Humans; Randomized Con | 2016 |
Effect of Gabapentin Enacarbil on Individual Items of the International Restless Legs Study Group Rating Scale and Post-sleep Questionnaire in Adults with Moderate-to-Severe Primary Restless Legs Syndrome: Pooled Analysis of 3 Randomized Trials.
Topics: Carbamates; Dizziness; Double-Blind Method; Fatigue; gamma-Aminobutyric Acid; Humans; Randomized Con | 2016 |
Gabapentin enacarbil in restless legs syndrome.
Topics: Carbamates; Clinical Trials as Topic; Delayed-Action Preparations; gamma-Aminobutyric Acid; Humans; | 2010 |
Gabapentin enacarbil (XP13512/GSK1838262) as an alternative treatment to dopaminergic agents for restless legs syndrome.
Topics: Carbamates; Dopamine Agents; gamma-Aminobutyric Acid; Humans; Restless Legs Syndrome | 2010 |
Gabapentin enacarbil for the treatment of restless legs syndrome (RLS).
Topics: Administration, Oral; Calcium Channels; Carbamates; Clinical Trials as Topic; gamma-Aminobutyric Aci | 2011 |
Gabapentin enacarbil for treatment of restless legs syndrome in adults.
Topics: Adult; Animals; Calcium Channel Blockers; Carbamates; gamma-Aminobutyric Acid; Humans; Prodrugs; Res | 2012 |
ADMET considerations for restless leg syndrome drug treatments.
Topics: Amines; Anticonvulsants; Benzothiazoles; Carbamates; Cyclohexanecarboxylic Acids; Dopamine Agents; D | 2012 |
Dose response of Gabapentin Enacarbil versus placebo in subjects with moderate-to-severe primary restless legs syndrome: an integrated analysis of three 12-week studies.
Topics: Carbamates; Clinical Trials, Phase II as Topic; Clinical Trials, Phase III as Topic; Dose-Response R | 2012 |
The treatment of restless legs syndrome and periodic limb movement disorder in adults--an update for 2012: practice parameters with an evidence-based systematic review and meta-analyses: an American Academy of Sleep Medicine Clinical Practice Guideline.
Topics: Academies and Institutes; Benzothiazoles; Cabergoline; Carbamates; Dopamine Agents; Ergolines; Evide | 2012 |
[Pharmacological and clinical profile of gabapentin enacarbil: a novel drug for the treatment of restless legs syndrome].
Topics: Animals; Biological Availability; Carbamates; Clinical Trials as Topic; gamma-Aminobutyric Acid; Hum | 2012 |
Gabapentin enacarbil: in patients with restless legs syndrome.
Topics: Animals; Carbamates; Clinical Trials, Phase I as Topic; Clinical Trials, Phase II as Topic; Excitato | 2012 |
15 trials available for carbamates and Restless Legs Syndrome
Article | Year |
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Nighttime Agitation and Restless Legs Syndrome in Persons With Alzheimer's Disease: Study Protocol for a Double-Blind, Placebo-Controlled, Randomized Trial (NightRest).
Topics: Aged; Alzheimer Disease; Anxiety; Carbamates; Double-Blind Method; Female; gamma-Aminobutyric Acid; | 2020 |
Difference in background factors between responders to gabapentin enacarbil treatment and responders to placebo: pooled analyses of two randomized, double-blind, placebo-controlled studies in Japanese patients with restless legs syndrome.
Topics: Carbamates; Double-Blind Method; gamma-Aminobutyric Acid; Humans; Japan; Restless Legs Syndrome; Tre | 2021 |
Predictors of clinical response in a double-blind placebo controlled crossover trial of gabapentin enacarbil for restless legs syndrome.
Topics: Carbamates; Cross-Over Studies; Dose-Response Relationship, Drug; Double-Blind Method; Female; gamma | 2018 |
Reduced response to gabapentin enacarbil in restless legs syndrome following long-term dopaminergic treatment.
Topics: Aged; Carbamates; Cross-Over Studies; Dopamine Agents; Double-Blind Method; Drug Administration Sche | 2019 |
Treatment response to sleep, pain, and mood disturbance and their correlation with sleep disturbance in adult patients with moderate-to-severe primary restless legs syndrome: Pooled analyses from 3 trials of gabapentin enacarbil.
Topics: Adult; Carbamates; Dose-Response Relationship, Drug; Double-Blind Method; Female; gamma-Aminobutyric | 2015 |
The Effect of Gabapentin Enacarbil on Quality of Life and Mood Outcomes in a Pooled Population of Adult Patients with Moderate-to-Severe Primary Restless Legs Syndrome.
Topics: Affect; Carbamates; Dose-Response Relationship, Drug; Double-Blind Method; Female; gamma-Aminobutyri | 2016 |
The Effect of Gabapentin Enacarbil on Quality of Life and Mood Outcomes in a Pooled Population of Adult Patients with Moderate-to-Severe Primary Restless Legs Syndrome.
Topics: Affect; Carbamates; Dose-Response Relationship, Drug; Double-Blind Method; Female; gamma-Aminobutyri | 2016 |
The Effect of Gabapentin Enacarbil on Quality of Life and Mood Outcomes in a Pooled Population of Adult Patients with Moderate-to-Severe Primary Restless Legs Syndrome.
Topics: Affect; Carbamates; Dose-Response Relationship, Drug; Double-Blind Method; Female; gamma-Aminobutyri | 2016 |
The Effect of Gabapentin Enacarbil on Quality of Life and Mood Outcomes in a Pooled Population of Adult Patients with Moderate-to-Severe Primary Restless Legs Syndrome.
Topics: Affect; Carbamates; Dose-Response Relationship, Drug; Double-Blind Method; Female; gamma-Aminobutyri | 2016 |
The Effect of Gabapentin Enacarbil on Quality of Life and Mood Outcomes in a Pooled Population of Adult Patients with Moderate-to-Severe Primary Restless Legs Syndrome.
Topics: Affect; Carbamates; Dose-Response Relationship, Drug; Double-Blind Method; Female; gamma-Aminobutyri | 2016 |
The Effect of Gabapentin Enacarbil on Quality of Life and Mood Outcomes in a Pooled Population of Adult Patients with Moderate-to-Severe Primary Restless Legs Syndrome.
Topics: Affect; Carbamates; Dose-Response Relationship, Drug; Double-Blind Method; Female; gamma-Aminobutyri | 2016 |
The Effect of Gabapentin Enacarbil on Quality of Life and Mood Outcomes in a Pooled Population of Adult Patients with Moderate-to-Severe Primary Restless Legs Syndrome.
Topics: Affect; Carbamates; Dose-Response Relationship, Drug; Double-Blind Method; Female; gamma-Aminobutyri | 2016 |
The Effect of Gabapentin Enacarbil on Quality of Life and Mood Outcomes in a Pooled Population of Adult Patients with Moderate-to-Severe Primary Restless Legs Syndrome.
Topics: Affect; Carbamates; Dose-Response Relationship, Drug; Double-Blind Method; Female; gamma-Aminobutyri | 2016 |
The Effect of Gabapentin Enacarbil on Quality of Life and Mood Outcomes in a Pooled Population of Adult Patients with Moderate-to-Severe Primary Restless Legs Syndrome.
Topics: Affect; Carbamates; Dose-Response Relationship, Drug; Double-Blind Method; Female; gamma-Aminobutyri | 2016 |
Randomized, double-blind, placebo-controlled study of XP13512/GSK1838262 in patients with RLS.
Topics: Adult; Amines; Anti-Anxiety Agents; Carbamates; Central Nervous System; Cyclohexanecarboxylic Acids; | 2009 |
A randomized, double-blind, placebo-controlled, crossover study of XP13512/GSK1838262 in the treatment of patients with primary restless legs syndrome.
Topics: Adult; Aged; Carbamates; Cross-Over Studies; Delayed-Action Preparations; Dose-Response Relationship | 2009 |
Long-term maintenance treatment of restless legs syndrome with gabapentin enacarbil: a randomized controlled study.
Topics: Adult; Aged; Aged, 80 and over; Carbamates; Double-Blind Method; Drug Tolerance; Female; gamma-Amino | 2010 |
Validation of the post sleep questionnaire for assessing subjects with restless legs syndrome: results from two double-blind, multicenter, placebo-controlled clinical trials.
Topics: Adult; Aged; Carbamates; Double-Blind Method; gamma-Aminobutyric Acid; Humans; Middle Aged; Outcome | 2011 |
Validation of the post sleep questionnaire for assessing subjects with restless legs syndrome: results from two double-blind, multicenter, placebo-controlled clinical trials.
Topics: Adult; Aged; Carbamates; Double-Blind Method; gamma-Aminobutyric Acid; Humans; Middle Aged; Outcome | 2011 |
Validation of the post sleep questionnaire for assessing subjects with restless legs syndrome: results from two double-blind, multicenter, placebo-controlled clinical trials.
Topics: Adult; Aged; Carbamates; Double-Blind Method; gamma-Aminobutyric Acid; Humans; Middle Aged; Outcome | 2011 |
Validation of the post sleep questionnaire for assessing subjects with restless legs syndrome: results from two double-blind, multicenter, placebo-controlled clinical trials.
Topics: Adult; Aged; Carbamates; Double-Blind Method; gamma-Aminobutyric Acid; Humans; Middle Aged; Outcome | 2011 |
Randomized polysomnography study of gabapentin enacarbil in subjects with restless legs syndrome.
Topics: Adolescent; Adult; Aged; Carbamates; Cross-Over Studies; Dose-Response Relationship, Drug; Double-Bl | 2011 |
A randomized, double-blind, placebo-controlled study to assess the efficacy and tolerability of gabapentin enacarbil in subjects with restless legs syndrome.
Topics: Analysis of Variance; Carbamates; Disorders of Excessive Somnolence; Dizziness; Dose-Response Relati | 2011 |
Long-term efficacy and safety of gabapentin enacarbil in Japanese restless legs syndrome patients.
Topics: Adult; Aged; Aged, 80 and over; Anticonvulsants; Asian People; Carbamates; Female; gamma-Aminobutyri | 2012 |
Gabapentin enacarbil in Japanese patients with restless legs syndrome: a 12-week, randomized, double-blind, placebo-controlled, parallel-group study.
Topics: Adult; Aged; Aged, 80 and over; Asian People; Carbamates; Dose-Response Relationship, Drug; Double-B | 2013 |
Population pharmacokinetics and pharmacodynamics of gabapentin after administration of gabapentin enacarbil.
Topics: Adolescent; Adult; Aged; Aged, 80 and over; Amines; Carbamates; Cyclohexanecarboxylic Acids; Female; | 2013 |
6 other studies available for carbamates and Restless Legs Syndrome
Article | Year |
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Effects of gabapentin enacarbil on restless legs syndrome and leg pain in dementia with Lewy bodies.
Topics: Aged; Carbamates; Dopamine Agonists; Female; gamma-Aminobutyric Acid; Hallucinations; Humans; Japan; | 2014 |
A mixed treatment comparison of gabapentin enacarbil, pramipexole, ropinirole and rotigotine in moderate-to-severe restless legs syndrome.
Topics: Adult; Aged; Bayes Theorem; Benzothiazoles; Carbamates; Dopamine Agonists; Female; gamma-Aminobutyri | 2014 |
The Effect of Gabapentin Enacarbil on Pain Associated with Moderate-to-Severe Primary Restless Legs Syndrome in Adults: Pooled Analyses from Three Randomized Controlled Trials.
Topics: Adult; Aged; Carbamates; Dopamine Agonists; Dose-Response Relationship, Drug; Double-Blind Method; F | 2016 |
Efficacy of gabapentin enacarbil in adult patients with severe primary restless legs syndrome.
Topics: Carbamates; Dose-Response Relationship, Drug; Double-Blind Method; Female; gamma-Aminobutyric Acid; | 2016 |
Gabapentin enacarbil, a gabapentin prodrug for the treatment of the neurological symptoms associated with disorders such as restless legs syndrome.
Topics: Animals; Carbamates; Clinical Trials, Phase II as Topic; Clinical Trials, Phase III as Topic; Dose-R | 2009 |
Gabapentin encarbil (Horizant) for restless leg syndrome.
Topics: Carbamates; Delayed-Action Preparations; gamma-Aminobutyric Acid; Humans; Restless Legs Syndrome | 2011 |