Abstract
Purpose: Few studies have investigated restless legs syndrome (RLS) treatment effects on individual International RLS Study Group Rating Scale (IRLS) items. We assessed the effects of gabapentin enacarbil (GEn) on individual IRLS items and their correlation with sleep disturbances in adults with moderate-to-severe primary RLS. Methods: Data were pooled from the randomized, double-blind, placebo-controlled, 12-week studies of XP052, XP053, and XP081 for adults who received GEn (600 or 1200 mg) or placebo once daily. Adults had primary RLS, IRLS total score ≥15, and RLS symptoms >15 days during the month before screening and for ≥4 of the 7 consecutive evenings at baseline. End points included mean change from baseline to week 12 in individual IRLS and post-sleep questionnaire (PSQ) items. For IRLS items, least squares mean treatment differences were calculated from a mixed model for repeated measures. For PSQ items, Cochran-Mantel-Haenszel row mean scores tests with integer scoring were used. Correlations between IRLS and PSQ items were assessed by Spearman's rank coefficients. Safety profile outcomes included treatment-emergent adverse events (TEAEs) and serious TEAEs. Findings: The modified intent-to-treat population included 671 patients (GEn 600 mg = 161; GEn 1200 mg = 266; placebo = 244). GEn significantly improved mean [SE] differences versus placebo for all IRLS items at week 12, including severity of sleep disturbance (GEn 600 mg, -0.4 [0.10]; GEn 1200 mg, -0.4 [0.09]), daytime tiredness (-0.4 [0.09]; -0.4 [0.08]), RLS severity (-0.4 [0.10]; -0.3 [0.08]), impact on daily affairs (-0.3 [0.07]; -0.3 [0.07]), and mood disturbance (-0.2 [0.07]; -0.3 [0.06]); all P
| Original language | English (US) |
|---|---|
| Journal | Clinical Therapeutics |
| DOIs | |
| State | Accepted/In press - 2016 |
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Keywords
- Gabapentin enacarbil
- International Restless Legs Study Group Rating Scale
- Post-sleep questionnaire
- Restless legs syndrome
- Sleep
ASJC Scopus subject areas
- Pharmacology
- Pharmacology (medical)
Cite this
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, Mansoor; Hays, Ryan; Steven Poceta, J.; Jaros, Mark J.; Kim, Richard; Shang, Gwendoline.
In: Clinical Therapeutics, 2016.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - 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
T2 - Pooled Analysis of 3 Randomized Trials
AU - Ahmed, Mansoor
AU - Hays, Ryan
AU - Steven Poceta, J.
AU - Jaros, Mark J.
AU - Kim, Richard
AU - Shang, Gwendoline
PY - 2016
Y1 - 2016
N2 - Purpose: Few studies have investigated restless legs syndrome (RLS) treatment effects on individual International RLS Study Group Rating Scale (IRLS) items. We assessed the effects of gabapentin enacarbil (GEn) on individual IRLS items and their correlation with sleep disturbances in adults with moderate-to-severe primary RLS. Methods: Data were pooled from the randomized, double-blind, placebo-controlled, 12-week studies of XP052, XP053, and XP081 for adults who received GEn (600 or 1200 mg) or placebo once daily. Adults had primary RLS, IRLS total score ≥15, and RLS symptoms >15 days during the month before screening and for ≥4 of the 7 consecutive evenings at baseline. End points included mean change from baseline to week 12 in individual IRLS and post-sleep questionnaire (PSQ) items. For IRLS items, least squares mean treatment differences were calculated from a mixed model for repeated measures. For PSQ items, Cochran-Mantel-Haenszel row mean scores tests with integer scoring were used. Correlations between IRLS and PSQ items were assessed by Spearman's rank coefficients. Safety profile outcomes included treatment-emergent adverse events (TEAEs) and serious TEAEs. Findings: The modified intent-to-treat population included 671 patients (GEn 600 mg = 161; GEn 1200 mg = 266; placebo = 244). GEn significantly improved mean [SE] differences versus placebo for all IRLS items at week 12, including severity of sleep disturbance (GEn 600 mg, -0.4 [0.10]; GEn 1200 mg, -0.4 [0.09]), daytime tiredness (-0.4 [0.09]; -0.4 [0.08]), RLS severity (-0.4 [0.10]; -0.3 [0.08]), impact on daily affairs (-0.3 [0.07]; -0.3 [0.07]), and mood disturbance (-0.2 [0.07]; -0.3 [0.06]); all P
AB - Purpose: Few studies have investigated restless legs syndrome (RLS) treatment effects on individual International RLS Study Group Rating Scale (IRLS) items. We assessed the effects of gabapentin enacarbil (GEn) on individual IRLS items and their correlation with sleep disturbances in adults with moderate-to-severe primary RLS. Methods: Data were pooled from the randomized, double-blind, placebo-controlled, 12-week studies of XP052, XP053, and XP081 for adults who received GEn (600 or 1200 mg) or placebo once daily. Adults had primary RLS, IRLS total score ≥15, and RLS symptoms >15 days during the month before screening and for ≥4 of the 7 consecutive evenings at baseline. End points included mean change from baseline to week 12 in individual IRLS and post-sleep questionnaire (PSQ) items. For IRLS items, least squares mean treatment differences were calculated from a mixed model for repeated measures. For PSQ items, Cochran-Mantel-Haenszel row mean scores tests with integer scoring were used. Correlations between IRLS and PSQ items were assessed by Spearman's rank coefficients. Safety profile outcomes included treatment-emergent adverse events (TEAEs) and serious TEAEs. Findings: The modified intent-to-treat population included 671 patients (GEn 600 mg = 161; GEn 1200 mg = 266; placebo = 244). GEn significantly improved mean [SE] differences versus placebo for all IRLS items at week 12, including severity of sleep disturbance (GEn 600 mg, -0.4 [0.10]; GEn 1200 mg, -0.4 [0.09]), daytime tiredness (-0.4 [0.09]; -0.4 [0.08]), RLS severity (-0.4 [0.10]; -0.3 [0.08]), impact on daily affairs (-0.3 [0.07]; -0.3 [0.07]), and mood disturbance (-0.2 [0.07]; -0.3 [0.06]); all P
KW - Gabapentin enacarbil
KW - International Restless Legs Study Group Rating Scale
KW - Post-sleep questionnaire
KW - Restless legs syndrome
KW - Sleep
UR - http://www.scopus.com/inward/record.url?scp=84973572577&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84973572577&partnerID=8YFLogxK
U2 - 10.1016/j.clinthera.2016.05.008
DO - 10.1016/j.clinthera.2016.05.008
M3 - Article
C2 - 27288210
AN - SCOPUS:84973572577
JO - Clinical Therapeutics
JF - Clinical Therapeutics
SN - 0149-2918
ER -