1
|
Inoue Y, Hirata K, Hoshino Y, Yamaguchi Y. 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. Sleep Med 2021; 85:138-146. [PMID: 34329897 DOI: 10.1016/j.sleep.2021.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 06/24/2021] [Accepted: 07/01/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Restless legs syndrome (RLS) is a sensorimotor disorder that is characterized by uncomfortable and unpleasant sensations mainly in the legs. Two placebo-controlled studies (Phase II/III and post-marketing) in Japanese patients with RLS failed to demonstrate the efficacy of gabapentin enacarbil (GE) 600 mg in the change from baseline in International Restless Legs Syndrome Rating Scale (IRLS) score at the end of the treatment period. The high response to placebo is thought to be a possible reason why the post-marketing study failed. The objectives of these post hoc analyses were to determine potential predictive factors associated with improvement in IRLS score with GE treatment and to identify subgroups with higher placebo responses. METHODS We combined data from the two Japanese studies and analyzed change from baseline in IRLS score in the pooled population and subgroups defined by several patient characteristics. Moreover, we calculated the variable importance of each factor and performed predictive enrichment analysis to identify an enrichable subpopulation with greater improvement by GE treatment. RESULTS The post hoc analyses suggested that higher baseline IRLS score (≥21) and higher body mass index (≥25 kg/m2) were associated with higher placebo responses. On the other hand, positive family history of RLS, prior use of dopaminergic receptor agonists, and higher baseline ferritin level (≥50 ng/mL) were associated with higher responses to GE. CONCLUSIONS Our results suggest that patients with typical idiopathic RLS characteristics, including positive family history and no low ferritin level, would be expected to derive the greatest benefits from GE treatment.
Collapse
Affiliation(s)
- Yuichi Inoue
- Department of Somnology, Tokyo Medical University, 6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan; Japan Somnology Center, Neuropsychiatric Research Institute, 5-10-10, Yoyogi, Shibuya-ku, Tokyo, 151-0053, Japan.
| | - Koichi Hirata
- Dokkyo Medical University, 880, Kitakobayashi, Mibu, Shimotsugagun, Tochigi, 321-0293, Japan.
| | - Yuya Hoshino
- Data Science, Astellas Pharma Inc., 2-5-1, Nihonbashi-Honcho, Chuo-ku, Tokyo, 103-8411, Japan.
| | - Yusuke Yamaguchi
- Data Science, Astellas Pharma Inc., 2-5-1, Nihonbashi-Honcho, Chuo-ku, Tokyo, 103-8411, Japan.
| |
Collapse
|
3
|
Muramatsu K, Chikahisa S, Shimizu N, Séi H, Inoue Y. Rotigotine suppresses sleep-related muscle activity augmented by injection of dialysis patients' sera in a mouse model of restless legs syndrome. Sci Rep 2019; 9:16344. [PMID: 31704978 PMCID: PMC6841937 DOI: 10.1038/s41598-019-52735-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 07/31/2019] [Indexed: 12/27/2022] Open
Abstract
Idiopathic restless legs syndrome (RLS) has a genetic basis wherein BTBD9 is associated with a higher risk of RLS. Hemodialysis patients also exhibit higher rates of RLS compared with the healthy population. However, little is known about the relationship of BTBD9 and end-stage renal disease to RLS pathophysiology. Here we evaluated sleep and leg muscle activity of Btbd9 mutant (MT) mice after administration of serum from patients with either idiopathic or RLS due to end-stage renal disease (renal RLS) and investigated the efficacy of treatment with the dopamine agonist rotigotine. At baseline, the amount of rapid eye movement (REM) sleep was decreased and leg muscle activity during non-REM (NREM) sleep was increased in MT mice compared to wild-type (WT) mice. Wake-promoting effects of rotigotine were attenuated by injection of serum from RLS patients in both WT and MT mice. Leg muscle activity during NREM sleep was increased only in MT mice injected with serum from RLS patients of ideiopatic and renal RLS. Subsequent treatment with rotigotine ameliorated this altered leg muscle activity. Together these results support previous reports showing a relationship between the Btbd9/dopamine system and RLS, and elucidate in part the pathophysiology of RLS.
Collapse
Affiliation(s)
- Kazuhiro Muramatsu
- Department of Pediatrics, Jichi Medical University, Tochigi, Japan.,Department of Pediatrics, Gunma University Graduate School of Medicine, Gunma, Japan
| | - Sachiko Chikahisa
- Department of Integrative Physiology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Noriyuki Shimizu
- Department of Integrative Physiology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Hiroyoshi Séi
- Department of Integrative Physiology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yuichi Inoue
- Department of Somnology, Tokyo Medical University, Tokyo, Japan.
| |
Collapse
|
10
|
Winkelman JW, Armstrong MJ, Allen RP, Chaudhuri KR, Ondo W, Trenkwalder C, Zee PC, Gronseth GS, Gloss D, Zesiewicz T. Practice guideline summary: Treatment of restless legs syndrome in adults: Report of the Guideline Development, Dissemination, and Implementation Subcommittee of the American Academy of Neurology. Neurology 2016; 87:2585-2593. [PMID: 27856776 DOI: 10.1212/wnl.0000000000003388] [Citation(s) in RCA: 135] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 08/02/2016] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE To make evidence-based recommendations regarding restless legs syndrome (RLS) management in adults. METHODS Articles were classified per the 2004 American Academy of Neurology evidence rating scheme. Recommendations were tied to evidence strength. RESULTS AND RECOMMENDATIONS In moderate to severe primary RLS, clinicians should consider prescribing medication to reduce RLS symptoms. Strong evidence supports pramipexole, rotigotine, cabergoline, and gabapentin enacarbil use (Level A); moderate evidence supports ropinirole, pregabalin, and IV ferric carboxymaltose use (Level B). Clinicians may consider prescribing levodopa (Level C). Few head-to-head comparisons exist to suggest agents preferentially. Cabergoline is rarely used (cardiac valvulopathy risks). Augmentation risks with dopaminergic agents should be considered. When treating periodic limb movements of sleep, clinicians should consider prescribing ropinirole (Level A) or pramipexole, rotigotine, cabergoline, or pregabalin (Level B). For subjective sleep measures, clinicians should consider prescribing cabergoline or gabapentin enacarbil (Level A), or ropinirole, pramipexole, rotigotine, or pregabalin (Level B). For patients failing other treatments for RLS symptoms, clinicians may consider prescribing prolonged-release oxycodone/naloxone where available (Level C). In patients with RLS with ferritin ≤75 μg/L, clinicians should consider prescribing ferrous sulfate with vitamin C (Level B). When nonpharmacologic approaches are desired, clinicians should consider prescribing pneumatic compression (Level B) and may consider prescribing near-infrared spectroscopy or transcranial magnetic stimulation (Level C). Clinicians may consider prescribing vibrating pads to improve subjective sleep (Level C). In patients on hemodialysis with secondary RLS, clinicians should consider prescribing vitamin C and E supplementation (Level B) and may consider prescribing ropinirole, levodopa, or exercise (Level C).
Collapse
Affiliation(s)
- John W Winkelman
- From Harvard Medical School and Massachusetts General Hospital (J.W.W.), Boston; Department of Neurology (M.J.A.), University of Florida College of Medicine, Gainesville; Department of Neurology (R.P.A.), Johns Hopkins University, Baltimore, MD; King's College and King's College Hospital (K.R.C.), London; Methodist Neurological Institute (W.O.), Houston, TX; Department of Neurology (C.T.), University Medical Center, Göttingen, Germany; Northwestern University Feinberg School of Medicine (P.C.Z.), Chicago, IL; University of Kansas Medical Center (G.S.G.), Kansas City; CAMC Neurology Section (D.G.), Charleston, WV; and Department of Neurology (T.Z.), University of South Florida, James A Haley Veterans Administration Hospital, Tampa
| | - Melissa J Armstrong
- From Harvard Medical School and Massachusetts General Hospital (J.W.W.), Boston; Department of Neurology (M.J.A.), University of Florida College of Medicine, Gainesville; Department of Neurology (R.P.A.), Johns Hopkins University, Baltimore, MD; King's College and King's College Hospital (K.R.C.), London; Methodist Neurological Institute (W.O.), Houston, TX; Department of Neurology (C.T.), University Medical Center, Göttingen, Germany; Northwestern University Feinberg School of Medicine (P.C.Z.), Chicago, IL; University of Kansas Medical Center (G.S.G.), Kansas City; CAMC Neurology Section (D.G.), Charleston, WV; and Department of Neurology (T.Z.), University of South Florida, James A Haley Veterans Administration Hospital, Tampa
| | - Richard P Allen
- From Harvard Medical School and Massachusetts General Hospital (J.W.W.), Boston; Department of Neurology (M.J.A.), University of Florida College of Medicine, Gainesville; Department of Neurology (R.P.A.), Johns Hopkins University, Baltimore, MD; King's College and King's College Hospital (K.R.C.), London; Methodist Neurological Institute (W.O.), Houston, TX; Department of Neurology (C.T.), University Medical Center, Göttingen, Germany; Northwestern University Feinberg School of Medicine (P.C.Z.), Chicago, IL; University of Kansas Medical Center (G.S.G.), Kansas City; CAMC Neurology Section (D.G.), Charleston, WV; and Department of Neurology (T.Z.), University of South Florida, James A Haley Veterans Administration Hospital, Tampa
| | - K Ray Chaudhuri
- From Harvard Medical School and Massachusetts General Hospital (J.W.W.), Boston; Department of Neurology (M.J.A.), University of Florida College of Medicine, Gainesville; Department of Neurology (R.P.A.), Johns Hopkins University, Baltimore, MD; King's College and King's College Hospital (K.R.C.), London; Methodist Neurological Institute (W.O.), Houston, TX; Department of Neurology (C.T.), University Medical Center, Göttingen, Germany; Northwestern University Feinberg School of Medicine (P.C.Z.), Chicago, IL; University of Kansas Medical Center (G.S.G.), Kansas City; CAMC Neurology Section (D.G.), Charleston, WV; and Department of Neurology (T.Z.), University of South Florida, James A Haley Veterans Administration Hospital, Tampa
| | - William Ondo
- From Harvard Medical School and Massachusetts General Hospital (J.W.W.), Boston; Department of Neurology (M.J.A.), University of Florida College of Medicine, Gainesville; Department of Neurology (R.P.A.), Johns Hopkins University, Baltimore, MD; King's College and King's College Hospital (K.R.C.), London; Methodist Neurological Institute (W.O.), Houston, TX; Department of Neurology (C.T.), University Medical Center, Göttingen, Germany; Northwestern University Feinberg School of Medicine (P.C.Z.), Chicago, IL; University of Kansas Medical Center (G.S.G.), Kansas City; CAMC Neurology Section (D.G.), Charleston, WV; and Department of Neurology (T.Z.), University of South Florida, James A Haley Veterans Administration Hospital, Tampa
| | - Claudia Trenkwalder
- From Harvard Medical School and Massachusetts General Hospital (J.W.W.), Boston; Department of Neurology (M.J.A.), University of Florida College of Medicine, Gainesville; Department of Neurology (R.P.A.), Johns Hopkins University, Baltimore, MD; King's College and King's College Hospital (K.R.C.), London; Methodist Neurological Institute (W.O.), Houston, TX; Department of Neurology (C.T.), University Medical Center, Göttingen, Germany; Northwestern University Feinberg School of Medicine (P.C.Z.), Chicago, IL; University of Kansas Medical Center (G.S.G.), Kansas City; CAMC Neurology Section (D.G.), Charleston, WV; and Department of Neurology (T.Z.), University of South Florida, James A Haley Veterans Administration Hospital, Tampa
| | - Phyllis C Zee
- From Harvard Medical School and Massachusetts General Hospital (J.W.W.), Boston; Department of Neurology (M.J.A.), University of Florida College of Medicine, Gainesville; Department of Neurology (R.P.A.), Johns Hopkins University, Baltimore, MD; King's College and King's College Hospital (K.R.C.), London; Methodist Neurological Institute (W.O.), Houston, TX; Department of Neurology (C.T.), University Medical Center, Göttingen, Germany; Northwestern University Feinberg School of Medicine (P.C.Z.), Chicago, IL; University of Kansas Medical Center (G.S.G.), Kansas City; CAMC Neurology Section (D.G.), Charleston, WV; and Department of Neurology (T.Z.), University of South Florida, James A Haley Veterans Administration Hospital, Tampa
| | - Gary S Gronseth
- From Harvard Medical School and Massachusetts General Hospital (J.W.W.), Boston; Department of Neurology (M.J.A.), University of Florida College of Medicine, Gainesville; Department of Neurology (R.P.A.), Johns Hopkins University, Baltimore, MD; King's College and King's College Hospital (K.R.C.), London; Methodist Neurological Institute (W.O.), Houston, TX; Department of Neurology (C.T.), University Medical Center, Göttingen, Germany; Northwestern University Feinberg School of Medicine (P.C.Z.), Chicago, IL; University of Kansas Medical Center (G.S.G.), Kansas City; CAMC Neurology Section (D.G.), Charleston, WV; and Department of Neurology (T.Z.), University of South Florida, James A Haley Veterans Administration Hospital, Tampa
| | - David Gloss
- From Harvard Medical School and Massachusetts General Hospital (J.W.W.), Boston; Department of Neurology (M.J.A.), University of Florida College of Medicine, Gainesville; Department of Neurology (R.P.A.), Johns Hopkins University, Baltimore, MD; King's College and King's College Hospital (K.R.C.), London; Methodist Neurological Institute (W.O.), Houston, TX; Department of Neurology (C.T.), University Medical Center, Göttingen, Germany; Northwestern University Feinberg School of Medicine (P.C.Z.), Chicago, IL; University of Kansas Medical Center (G.S.G.), Kansas City; CAMC Neurology Section (D.G.), Charleston, WV; and Department of Neurology (T.Z.), University of South Florida, James A Haley Veterans Administration Hospital, Tampa
| | - Theresa Zesiewicz
- From Harvard Medical School and Massachusetts General Hospital (J.W.W.), Boston; Department of Neurology (M.J.A.), University of Florida College of Medicine, Gainesville; Department of Neurology (R.P.A.), Johns Hopkins University, Baltimore, MD; King's College and King's College Hospital (K.R.C.), London; Methodist Neurological Institute (W.O.), Houston, TX; Department of Neurology (C.T.), University Medical Center, Göttingen, Germany; Northwestern University Feinberg School of Medicine (P.C.Z.), Chicago, IL; University of Kansas Medical Center (G.S.G.), Kansas City; CAMC Neurology Section (D.G.), Charleston, WV; and Department of Neurology (T.Z.), University of South Florida, James A Haley Veterans Administration Hospital, Tampa
| |
Collapse
|
16
|
Ding J, Fan W, Chen HH, Yan P, Sun SG, Zheng J. Rotigotine in the treatment of primary restless legs syndrome: A meta-analysis of randomized placebo-controlled trials. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY. MEDICAL SCIENCES = HUA ZHONG KE JI DA XUE XUE BAO. YI XUE YING DE WEN BAN = HUAZHONG KEJI DAXUE XUEBAO. YIXUE YINGDEWEN BAN 2015; 35:169-175. [PMID: 25877347 DOI: 10.1007/s11596-015-1406-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 02/22/2015] [Indexed: 11/26/2022]
Abstract
The aim of this study was to summarize the efficacy and tolerability of rotigotine in the treatment of primary restless legs syndrome (RLS). PubMed, EMBASE, and Cochrane Central Register of Controlled Trials (CENTRAL) were searched for English-language randomized controlled trials (RCTs) that assessed the effectiveness of rotigotine for RLS. The pooled mean change from baseline in International RLS (IRLS) Study Group Rating Scalescore and relative risk (RR) of response based on the Clinical Global Impression-Improvement (CGI-I) scale score were applied to evaluate the outcomes. The pooled proportions of adverse events (AEs) were also estimated. Six RCTs were included. The meta-analysis showed a favorable effectiveness of rotigotine versus placebo on RLS [mean change on IRLS score: mean difference (MD)=-4.80; 95% confidence interval (CI): -5.90 to -3.70; P<0.00001 and RR of response on CGI-I was 2.19; 95% CI: 1.86 to 2.58, P<0.00001]. The most common AEs were application site reactions, nausea, headache and fatigue. In general, rotigotine was well-tolerated in patients with primary RLS. Based on the findings from the meta-analysis, rotigotine was more significantly efficacious in the treatment of RLS than placebo. Nevertheless, long-term studies and more evidence of comparisons of rotigotine with other dopamine agonists are needed.
Collapse
Affiliation(s)
- Jun Ding
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Wei Fan
- Department of Breast Surgery, Hubei Cancer Hospital, Wuhan, 430079, China
| | - Hong-Hui Chen
- Wuhan First Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Peng Yan
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Sheng-Gang Sun
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jin Zheng
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| |
Collapse
|