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Recourt K, de Boer P, van der Ark P, Benes H, van Gerven JMA, Ceusters M, van Nueten L, Drevets WC, Bhatacharya A, Browning M, Jacobs GE. Characterization of the central nervous system penetrant and selective purine P2X7 receptor antagonist JNJ-54175446 in patients with major depressive disorder. Transl Psychiatry 2023; 13:266. [PMID: 37482560 PMCID: PMC10363543 DOI: 10.1038/s41398-023-02557-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 05/12/2023] [Accepted: 07/03/2023] [Indexed: 07/25/2023] Open
Abstract
JNJ-54175446 is a selective purine P2X7 receptor (P2X7R) antagonist that attenuates microglial IL-1β/IL-18 release. In healthy volunteers, JNJ-54175446 suppressed peripheral interleukin (IL)-1β release, and attenuated dexamphetamine-induced improvements of mood and (visuo)motor performance in a human dexamphetamine-challenge paradigm. In depression, P2X7R inhibition may dampen immune-related dysregulation of mood. These results suggest that the impact of P2X7R inhibition is most prominent in situations where mood regulation is disrupted. Total sleep deprivation (TSD) results in an acute emotional perturbation, which yields a transient antidepressant effect. In the current study, TSD was applied as a behavioral challenge to investigate whether such effects could be modulated by JNJ-54175446. This was a double-blind, placebo-controlled, randomized study to assess the safety and pharmacokinetics of JNJ-54175446 and explore its effects in patients with single episode and recurrent major depressive disorder (MDD) (N = 69) and baseline total Inventory of Depressive Symptomatology Clinician Rated (IDS-C) > 30. Patients were randomized to receive JNJ-54175446 throughout the 10-day treatment period, placebo for days 1-3 followed by JNJ-54175446 or placebo throughout. All patients underwent 36 h of TSD starting on day three until the evening of day four. The early start group was hypothesized to experience a reduced effect from TSD whilst the late starting group was hypothesized to experience prolonged effects from the TSD. JNJ-54175446 was well-tolerated and adverse events were mild to moderate. JNJ-54175446 reduced IL-1β release by LPS-stimulated peripheral white blood cells in the presence of the P2X receptor agonist benzyl adenosine triphosphate (BzATP). JNJ-54175446 did not have a significant effect on mood as assessed using the Hamilton Depression Rating Scale, 17 items (HDRS17) and the Self-rated Quick Inventory of Depressive Symptoms (QIDS-SR). However, JNJ-54175446 blunted an acute reduction of anhedonia that occurred as a result of TSD, assessed by the Snaith-Hamilton Pleasure Scale (SHAPS) and the Probabilistic Instrumental Learning Task (PILT).
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Affiliation(s)
- Kasper Recourt
- Centre for Human Drug Research, Leiden, the Netherlands.
- Department of Psychiatry, Leiden University Medical Center, Leiden, the Netherlands.
| | - Peter de Boer
- Janssen Research and Development, a Division of Janssen Pharmaceutica N.V, Beerse, Belgium
| | - Peter van der Ark
- Janssen Research and Development, a Division of Janssen Pharmaceutica N.V, Beerse, Belgium
| | - Heike Benes
- Janssen Research and Development, a Division of Janssen Pharmaceutica N.V, Beerse, Belgium
| | - Joop M A van Gerven
- Centre for Human Drug Research, Leiden, the Netherlands
- Department of Psychiatry, Leiden University Medical Center, Leiden, the Netherlands
| | - Marc Ceusters
- Janssen Research and Development, a Division of Janssen Pharmaceutica N.V, Beerse, Belgium
| | - Luc van Nueten
- Janssen Research and Development, a Division of Janssen Pharmaceutica N.V, Beerse, Belgium
| | | | | | - Michael Browning
- University of Oxford, Oxford, UK
- Oxford Health NHS Trust, Oxford, UK
| | - Gabriel E Jacobs
- Centre for Human Drug Research, Leiden, the Netherlands
- Department of Psychiatry, Leiden University Medical Center, Leiden, the Netherlands
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Hudgens S, Phillips-Beyer A, Newton L, Kinter DS, Benes H. Summary of Research: Development and Validation of the Insomnia Daytime Symptoms and Impacts Questionnaire (IDSIQ). Adv Ther 2023; 40:2573-2576. [PMID: 37099213 PMCID: PMC10219861 DOI: 10.1007/s12325-023-02489-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 03/07/2023] [Indexed: 04/27/2023]
Abstract
This is a summary of the original article 'Development and Validation of the Insomnia Daytime Symptoms and Impacts Questionnaire (IDSIQ)'. Individuals with insomnia are best positioned to assess the impact of insomnia on their quality of life. Patient reported outcomes (PROs) are self-reported health measures created to allow people to record their experience of their disease. Chronic insomnia has a major impact on daytime functioning for patients, and on their quality of life. This summary of research provides an overview of a previously published article detailing the development and evaluation of the Insomnia Daytime Symptoms and Impacts Questionnaire (IDSIQ), as a tool to allow people with insomnia to report their experience of the impact on their daytime functioning.
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Affiliation(s)
| | | | | | | | - Heike Benes
- Somni Bene Institut Für Medizinische Forschung und Schlafmedizin Schwerin GmbH, Schwerin, Germany
- University of Rostock Medical Center, Rostock, Germany
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Winter Y, Mayer G, Kotterba S, Benes H, Burghaus L, Koch A, Girfoglio D, Setanoians M, Kallweit U. Solriamfetol real world experience study (SURWEY): Initiation, titration, safety, effectiveness, and experience during follow-up for patients with narcolepsy from Germany. Sleep Med 2023; 103:138-143. [PMID: 36796288 DOI: 10.1016/j.sleep.2023.01.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/22/2022] [Accepted: 01/25/2023] [Indexed: 01/30/2023]
Abstract
BACKGROUND Excessive daytime sleepiness (EDS) is a core narcolepsy symptom, for which solriamfetol (Sunosi®) was recently approved in the European Union. SURWEY characterises real-world strategies used by physicians when initiating solriamfetol, and patient outcomes after follow-up. METHODS SURWEY is an ongoing retrospective chart review conducted by physicians in Germany/France/Italy. Here, data are reported from 70 German patients with EDS and narcolepsy. Eligibility included age ≥18 years, reached a stable solriamfetol dose, and completed ≥6 weeks of treatment. Patients were classified (based on existing EDS treatment) into changeover, add-on, or new-to-therapy subgroups. RESULTS Patients' mean ± SD age was 36.9 ± 13.9 years. Changeover from prior EDS medication was the most common initiation strategy. Initial solriamfetol dose was typically 75 mg/day (69%). In 30 patients (43%), solriamfetol was titrated; 27/30 (90%) completed titration as prescribed, most within 7 days. Mean ± SD Epworth Sleepiness Scale (ESS) score was 17.6 ± 3.1 at initiation (n = 61) and 13.6 ± 3.8 at follow-up (n = 51). Slight/strong improvements in EDS were perceived for >90% of patients (patient and physician report). Sixty-two percent reported an effect duration of 6 to <10 h; 72% reported no change in perceived nighttime sleep quality. Common adverse events included headache (9%), decreased appetite (6%), and insomnia (6%); no cardiovascular events were reported. CONCLUSIONS Most patients in this study were switched from a prior EDS medication to solriamfetol. Solriamfetol was typically initiated at 75 mg/day; titration was common. ESS scores improved after initiation, and most patients perceived improvement in EDS. Common adverse events were consistent with those reported in clinical trials. CLINICALTRIALS GOV REGISTRATION N/A.
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Affiliation(s)
- Yaroslav Winter
- Mainz Comprehensive Epilepsy and Sleep Medicine Center, Department of Neurology, Johannes Gutenberg-University, Langenbeckstraße 1, 55131, Mainz, Germany; Department of Neurology, Philipps-University, Biegenstraße 10, 35037, Marburg, Germany.
| | - Geert Mayer
- Hephata Klinik, Schimmelpfengstraße 6, 34613, Schwalmstadt, Germany; Philipps University, Biegenstraße 10, 35037, Marburg, Germany
| | - Sylvia Kotterba
- Klinikum Leer gGmbH, Augustenstraße 35, 26789, Leer (Ostfriesland), Lower Saxony, Germany
| | - Heike Benes
- Somni bene GmbH Institut für Medizinische Forschung and Schlafmedizin Schwerin GmbH, Goethestraße 1, 19053, Schwerin, Germany
| | - Lothar Burghaus
- Department of Neurology, Heilig Geist-Hospital, Graseggerstr. 105, 50737, Cologne-Longerich, Germany
| | - Andreas Koch
- Jazz Pharmaceuticals, Einsteinstrasse 174, 81677, München, Munich, Germany
| | - Daniela Girfoglio
- Jazz Pharmaceuticals, Wing B, Building 5700, Spires House, John Smith Drive, Oxford Business Park South, Oxford, OX4 2RW, United Kingdom
| | - Melinda Setanoians
- Jazz Pharmaceuticals, Wing B, Building 5700, Spires House, John Smith Drive, Oxford Business Park South, Oxford, OX4 2RW, United Kingdom
| | - Ulf Kallweit
- Institute of Immunology and Center for Biomedical Education and Research, University Witten/Herdecke, Stockumer Str. 10, 58453, Witten, Germany
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Kunz D, Dauvilliers Y, Benes H, García-Borreguero D, Plazzi G, Seboek Kinter D, Coloma P, Rausch M, Sassi-Sayadi M, Thein S. Long-Term Safety and Tolerability of Daridorexant in Patients with Insomnia Disorder. CNS Drugs 2023; 37:93-106. [PMID: 36484969 PMCID: PMC9829592 DOI: 10.1007/s40263-022-00980-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/01/2022] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND OBJECTIVE Daridorexant is a dual orexin receptor antagonist for the treatment of insomnia. In two phase III, 12-week studies in patients with insomnia disorder, daridorexant improved sleep and daytime functioning while maintaining a favorable safety profile. The objective of this 40-week extension study was to assess the long-term safety and tolerability of daridorexant. METHODS Adults with insomnia disorder who completed the 12-week studies were invited to enroll in this double-blind extension study. Patients originally randomised to daridorexant (10 mg/25 mg/50 mg) remained on their respective treatments; patients randomised to placebo were re-randomised to daridorexant 25 mg or placebo. The 40-week treatment period was followed by a 7-day placebo run-out. The primary objective was to assess safety/tolerability. Exploratory objectives were to evaluate the efficacy of daridorexant on sleep (self-reported total sleep time) and daytime functioning (Insomnia Daytime Symptoms and Impacts Questionnaire). RESULTS In total, 804 patients were enrolled in the study, of whom 801 received at least one dose of the study treatment and 550 patients (68.4%) completed the study. Overall incidence of treatment-emergent adverse events was similar across groups (35-40%). Daridorexant did not induce next-morning sleepiness and no withdrawal-related symptoms or rebound were observed after treatment discontinuation. Improvements in sleep and daytime functioning were maintained through to the end of the study and were most pronounced with daridorexant 50 mg. Daridorexant 50 mg, compared with placebo, increased self-reported total sleep time by a least-squares mean of 20.4 (95% confidence interval [CI] 4.2, 36.5), 15.8 (95% CI - 0.8, 32.5) and 17.8 (95% CI - 0.4, 35.9) minutes and decreased (i.e., improved) Insomnia Daytime Symptoms and Impacts Questionnaire total scores by a least-squares mean of - 9.3 (95% CI - 15.1, - 3.6), - 9.5 (95% CI - 15.4, - 3.5) and - 9.1 (95% CI - 15.6, - 2.7), at weeks 12, 24 and 36 of the extension study, respectively. CONCLUSIONS Treatment with daridorexant, for up to 12 months, was generally safe and well tolerated. Exploratory efficacy analyses suggest that the sustained improvements in sleep and daytime functioning with daridorexant 50 mg support its use for long-term treatment of insomnia disorder, without concerns of new safety signals. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov (NCT03679884) [first posted: 21 September, 2018], https://clinicaltrials.gov/ct2/show/NCT03679884 .
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Affiliation(s)
- Dieter Kunz
- Clinic for Sleep & Chronomedicine, St. Hedwig-Krankenhaus, Große Hamburger Straße 5-11, 10115, Berlin, Germany.
| | - Yves Dauvilliers
- Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - Heike Benes
- Somni Bene Institut für Medizinische Forschung und Schlafmedizin Schwerin GmbH, Schwerin, Germany
| | | | - Giuseppe Plazzi
- IRCCS Istituto delle Scienze Neurologiche, Bologna, Italy ,Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | | | | | | | | | - Stephen Thein
- Pacific Research Network-an ERG Portfolio Company, San Diego, CA USA
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Kallweit U, Winter Y, Kotterba S, Benes H, Burghaus L, Koch A, Girfoglio D, Setanoians M, Mayer G. 039 Solriamfetol real world experience study (SURWEY): safety and effectiveness for patients with narcolepsy from Germany. J Neurol Psychiatry 2022. [DOI: 10.1136/jnnp-2022-abn2.83] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
IntroductionSolriamfetol is a dopamine/norepinephrine reuptake inhibitor approved in the EU for excessive daytime sleepiness (EDS) associated with narcolepsy. This real-world study characterises outcomes following solriamfetol initiation.MethodsSURWEY is an ongoing retrospective chart review (Germany, France, Italy). Patients (≥18 years old, EDS due to narcolepsy, stable solriamfetol dose, ≥6 weeks of treatment) were classified by solriamfe- tol initiation: changeover (from existing EDS medications), add-on (to current EDS medication), or new- to-therapy (no current/prior EDS medication). Epworth Sleepiness Scale (ESS) scores, patient/physician impressions of improvement, and adverse events (AEs) were assessed.ResultsAmong 78 German patients (36.9±13.9 years old; 56% female, 57% with cataplexy), changeo- ver was most common (n=43), followed by add-on (n=19) and new-to-therapy (n=8). Final follow-up was 15.9±7.0 weeks after initiation. Overall, ESS scores were 17.6±3.1 (n=61) at initiation and 13.6±3.8 at follow-up (n=51), indicating improvement of EDS (improvements similar across subgroups). Most patients perceived slight/strong improvements in their condition (physician report, 94%; patient report, 91%; results similar across subgroups). Common AEs: headache (9%), decreased appetite (6%), insomnia (6%).ConclusionIn this real-world cohort of German patients with narcolepsy, EDS improved across all subgroups with solriamfetol treatment. AEs were consistent with those reported in clinical trials.SupportJazz Pharmaceuticals.
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Hudgens S, Phillips-Beyer A, Newton L, Seboek Kinter D, Benes H. Development and Validation of the Insomnia Daytime Symptoms and Impacts Questionnaire (IDSIQ). Patient 2020; 14:249-268. [PMID: 33131027 PMCID: PMC7884372 DOI: 10.1007/s40271-020-00474-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 10/13/2020] [Indexed: 12/31/2022]
Abstract
Background and Objective Chronic insomnia has major consequences for daytime functioning, yet no fully validated patient-reported outcome instrument for once-daily assessments is available to measure these consequences. This study describes the development and psychometric evaluation of the Insomnia Daytime Symptoms and Impacts Questionnaire (IDSIQ). Methods The Daytime Insomnia Symptom Scale (DISS), an existing 20-item instrument for assessing daytime functioning, was modified to give an 18-item version of the IDSIQ (IDSIQ-18) based on iterative qualitative interviews with 54 subjects with insomnia and expert input. The construct validity and other psychometric properties of the IDSIQ-18 were analyzed based on an interventional study (NCT03056053) in which subjects with insomnia received zolpidem (5 or 10 mg) daily for 2 weeks and an observational study among subjects with no diagnosis of insomnia (good sleepers). Participants in both studies completed the IDSIQ-18 daily for 2 weeks. Exit interviews were conducted with a sample of subjects who completed the interventional study to elicit concepts defining the experience of insomnia, to assess understanding of the response scales, and to determine meaningful change thresholds. Exploratory factor analysis and Rasch analysis were conducted to further assess the structure and latent model for the scoring of the final IDSIQ instrument. Further psychometric evaluation of the final IDSIQ was then conducted. Results Subjects in both the interventional study (N = 114) and observational study (N = 103) were predominantly female (65% for subjects with insomnia and 60% for good sleepers). Mean age was 51 years for subjects with insomnia and 45 years for good sleepers. Subjects in the exit interviews (N = 41) demonstrated a good understanding of the IDSIQ-18 response scales. Day 1 mean scores were higher (worse) in subjects with insomnia compared with good sleepers. Based on inter-item correlation, exploratory factor, and Rasch analyses and review of the qualitative data, four items were removed. This yielded the final IDSIQ, with 14 items comprising three domains: Alert/Cognition, Mood, and Sleepiness. The domain structure was determined in a confirmatory factor analysis. Evidence of internal consistency reliability was strong: day 1 Cronbach’s alpha was 0.917 for IDSIQ total score and 0.806–0.918 for the domains. Test-retest reliability, assessed for subjects with insomnia with no change on the Patient Global Assessment of Disease Severity scale between day 1 and day 8, was also good (intra-class correlation coefficient 0.856–0.911). Meaningful change thresholds derived for this sample using anchor-based approaches were 20 for IDSIQ total score, 9 for the Alert/Cognition domain, 4 for the Mood domain, and 4 for the Sleepiness domain. Conclusions These studies, which closely followed Food and Drug Administration Guidance for Industry on patient-reported outcome measures, support use of the IDSIQ as a fit-for-purpose measure for deriving valid and reliable endpoints in insomnia clinical research trials and real-world studies. Electronic supplementary material The online version of this article (10.1007/s40271-020-00474-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | | | | | - Heike Benes
- Somni Bene Institut für Medizinische Forschung und Schlafmedizin Schwerin GmbH, Schwerin, Germany.,University of Rostock Medical Center, Rostock, Germany
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Weaver TE, Drake CL, Benes H, Stern T, Maynard J, Thein SG, Andry JM, Hudson JD, Chen D, Carter LP, Bron M, Lee L, Black J, Bogan RK. Effects of Solriamfetol on Quality-of-Life Measures from a 12-Week Phase 3 Randomized Controlled Trial. Ann Am Thorac Soc 2020; 17:998-1007. [PMID: 32353246 PMCID: PMC7393785 DOI: 10.1513/annalsats.202002-136oc] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 04/30/2020] [Indexed: 01/01/2023] Open
Abstract
Rationale: Excessive daytime sleepiness in patients with obstructive sleep apnea is associated with substantial burden of illness.Objectives: To assess treatment effects of solriamfetol, a dopamine/norepinephrine reuptake inhibitor, on daily functioning, health-related quality of life, and work productivity in participants with obstructive sleep apnea and excessive daytime sleepiness as additional outcomes in a 12-week phase 3 trial (www.clinicaltrials.gov identifier NCT02348606).Methods: Participants (N = 476) were randomized to solriamfetol 37.5, 75, 150, or 300 mg or to placebo. Outcome measures included the Functional Outcomes of Sleep Questionnaire short version, Work Productivity and Activity Impairment Questionnaire: Specific Health Problem, and 36-item Short Form Health Survey version 2. A mixed-effects model with repeated measures was used for comparisons with placebo.Results: Demographics, baseline disease characteristics, daily functioning, health-related quality of life, and work productivity were similar across groups. At Week 12, increased functioning and decreased impairment were observed with solriamfetol 150 and 300 mg (mean difference from placebo [95% confidence interval]) on the basis of Functional Outcomes of Sleep Questionnaire total score (1.22 [0.57 to 1.88] and 1.47 [0.80 to 2.13], respectively), overall work impairment (-11.67 [-19.66 to -3.69] and -11.75 [-19.93 to -3.57], respectively), activity impairment (-10.42 [-16.37 to -4.47] and -10.51 [-16.59 to -4.43], respectively), physical component summary (2.07 [0.42 to 3.72] and 1.91 [0.22 to 3.59], respectively), and mental component summary (150 mg only, 2.05 [0.14 to 3.96]). Common adverse events were headache, nausea, decreased appetite, and anxiety.Conclusions: Solriamfetol improved measures of functioning, quality of life, and work productivity in participants with obstructive sleep apnea and excessive daytime sleepiness. Safety was consistent with previous studies.Clinical trial registered with www.clinicaltrials.gov (NCT02348606).
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Affiliation(s)
- Terri E. Weaver
- University of Illinois at Chicago College of Nursing, Chicago, Illinois
| | | | - Heike Benes
- Somni Bene Institut für Medizinische Forschung und Schlafmedizin Schwerin GmbH, Schwerin, Germany
- Medical Center, University of Rostock, Rostock, Germany
| | - Thomas Stern
- Advanced Respiratory and Sleep Medicine, PLLC, Huntersville, North Carolina
| | | | - Stephen G. Thein
- Pacific Research Network, Evolution Research Group, LLC, San Diego, California
| | | | | | - Dan Chen
- Jazz Pharmaceuticals, Palo Alto, California
| | - Lawrence P. Carter
- Jazz Pharmaceuticals, Palo Alto, California
- University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | | | | | - Jed Black
- Jazz Pharmaceuticals, Palo Alto, California
- Stanford Center for Sleep Sciences and Medicine, Palo Alto, California
| | - Richard K. Bogan
- SleepMed, Inc., Columbia, South Carolina; and
- University of South Carolina School of Medicine, Columbia, South Carolina
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Rohiwal SS, Dvorakova N, Klima J, Vaskovicova M, Senigl F, Slouf M, Pavlova E, Stepanek P, Babuka D, Benes H, Ellederova Z, Stieger K. Polyethylenimine based magnetic nanoparticles mediated non-viral CRISPR/Cas9 system for genome editing. Sci Rep 2020; 10:4619. [PMID: 32165679 PMCID: PMC7067791 DOI: 10.1038/s41598-020-61465-6] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 02/17/2020] [Indexed: 01/09/2023] Open
Abstract
Clustered regularly interspaced short palindromic repeats-associated protein (CRISPR/Cas9) system has become a revolutionary tool for gene editing. Since viral delivery systems have significant side effects, and naked DNA delivery is not an option, the nontoxic, non-viral delivery of CRISPR/Cas9 components would significantly improve future therapeutic delivery. In this study, we aim at characterizing nanoparticles to deliver plasmid DNA encoding for the CRISPR-Cas system in eukaryotic cells in vitro. CRISPR/Cas9 complexed polyethylenimine (PEI) magnetic nanoparticles (MNPs) were generated. We used a stable HEK293 cell line expressing the traffic light reporter (TLR-3) system to evaluate efficient homology- directed repair (HDR) and non-homologous end joining (NHEJ) events following transfection with NPs. MNPs have been synthesized by co-precipitation with the average particle size around 20 nm in diameter. The dynamic light scattering and zeta potential measurements showed that NPs exhibited narrow size distribution and sufficient colloidal stability. Genome editing events were as efficient as compared to standard lipofectamine transfection. Our approach tested non-viral delivery of CRISPR/Cas9 and DNA template to perform HDR and NHEJ in the same assay. We demonstrated that PEI-MNPs is a promising delivery system for plasmids encoding CRISPR/Cas9 and template DNA and thus can improve safety and utility of gene editing.
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Affiliation(s)
- S S Rohiwal
- The PIGMOD center, Institute of Animal Physiology and Genetics, v. v. i., The Czech Academy of Sciences, Libechov, Czech Republic
| | - N Dvorakova
- The PIGMOD center, Institute of Animal Physiology and Genetics, v. v. i., The Czech Academy of Sciences, Libechov, Czech Republic
| | - J Klima
- The PIGMOD center, Institute of Animal Physiology and Genetics, v. v. i., The Czech Academy of Sciences, Libechov, Czech Republic
| | - M Vaskovicova
- The PIGMOD center, Institute of Animal Physiology and Genetics, v. v. i., The Czech Academy of Sciences, Libechov, Czech Republic
| | - F Senigl
- Institute of Molecular Genetics, The Czech Academy of Sciences, Praha 4, Czech Republic
| | - M Slouf
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic
| | - E Pavlova
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic
| | - P Stepanek
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic
| | - D Babuka
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic
| | - H Benes
- Institute of Macromolecular Chemistry CAS, Heyrovského nám. 2, 162 06, Prague 6, Czech Republic
| | - Z Ellederova
- The PIGMOD center, Institute of Animal Physiology and Genetics, v. v. i., The Czech Academy of Sciences, Libechov, Czech Republic.
| | - K Stieger
- Department of Ophthalmology, Justus-Liebig-University, 35392, Giessen, Germany.
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Drake C, Bogan R, Benes H, Stern T, Villa K, Chen D, Carter L, Wang H, Black J, Weaver T. Function, work productivity, and quality of life measures in a phase 3, randomized, placebo-controlled, double-blind, multicenter, 12-week study of the safety and efficacy of solriamfetol (JZP-110) for the treatment of excessive sleepiness in patients with obstructive sleep apnea. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Benes H, Thein SG, Andry SJM, Hudson JD, Villa KF, Chen D, Carter LP, Wang H, Lu Y, Black J, Maynard J. 0642 A PHASE 3, RANDOMIZED, PLACEBO-CONTROLLED, DOUBLE-BLIND, MULTICENTER, 12-WEEK STUDY OF THE SAFETY AND EFFICACY OF JZP-110 IN THE TREATMENT OF EXCESSIVE SLEEPINESS IN PATIENTS WITH OBSTRUCTIVE SLEEP APNEA: SF-36 AND EQ-5D-5L MEASURES. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Trenkwalder C, Canelo M, Lang M, Schroeder H, Kelling D, Berkels R, Schollmayer E, Heidbrede T, Benes H. Management of augmentation of restless legs syndrome with rotigotine: a 1-year observational study. Sleep Med 2017; 30:257-265. [DOI: 10.1016/j.sleep.2015.10.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 10/20/2015] [Accepted: 10/27/2015] [Indexed: 11/26/2022]
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Dauvilliers Y, Benes H, Partinen M, Rauta V, Rifkin D, Dohin E, Goldammer N, Schollmayer E, Schröder H, Winkelman JW. Rotigotine in Hemodialysis-Associated Restless Legs Syndrome: A Randomized Controlled Trial. Am J Kidney Dis 2016; 68:434-43. [DOI: 10.1053/j.ajkd.2015.12.027] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 12/26/2015] [Indexed: 11/11/2022]
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Muntean ML, Benes H, Sixel-Döring F, Chaudhuri KR, Suzuki K, Hirata K, Zimmermann J, Trenkwalder C. Clinically relevant cut-off values for the Parkinson's Disease Sleep Scale-2 (PDSS-2): a validation study. Sleep Med 2016; 24:87-92. [PMID: 27810191 DOI: 10.1016/j.sleep.2016.06.026] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 06/15/2016] [Accepted: 06/17/2016] [Indexed: 11/19/2022]
Abstract
BACKGROUND Sleep disturbances are a major problem encountered by neurologists attending Parkinson's disease (PD) patients. The Parkinson's Disease Sleep Scale-2 (PDSS-2) assesses a wide spectrum of disease-specific sleep problems and is easy to administer as a patient self-rating scale. The validation study showed that the scale is reliable, valid, and precise. Until now, however, only one Japanese study has assessed cut-off scores to define poor sleepers. OBJECTIVES In this context we aimed to determine the PDSS-2 cut-off values that define a sleep disturbance severe enough to require referral of the patient to a sleep center or the need for specific treatment. METHODS Inpatients with idiopathic PD consecutively admitted to our hospital were enrolled. Patients completed the PDSS-2. The attending physician, who was blinded to the PDSS-2 results, but familiar with the patients' history and current disease status, completed a questionnaire consisting of two general questions on the presence of PD-specific and non-PD related sleep problems. Statistical analysis was performed to determine cut-off values for the PDSS-2 and correlation with the physician's evaluation of sleep disturbance severity. A natural cohort of non-PD patients with sleep disorders represented the control group. RESULTS The sample consisted of 52 (56%) men and 41 (44%) women with an average age of 69.22 ± 8.74 years. PDSS-2 showed a sensitivity of 77.6% and a specificity of 74.3% in relation to physician's evaluation of PD-specific sleep problems. According to the physician's evaluation, PD-specific sleep disturbances occurred in 62% of the patients. 83% of patients with PDSS-2 scores ≥18 had clinically relevant sleep disturbances compared to only 33% of PD patients with scores <18. The severity of PD-specific sleep problems was well correlated with the PDSS-2 total score (r = 0.49). CONCLUSIONS To our knowledge, this is the first study to define PDSS-2 cut-off values for the severity of sleep disturbances in a European PD sample. Our study shows that scores ≥18 define clinically relevant PD-specific sleep disturbances.
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Affiliation(s)
- Maria-Lucia Muntean
- Paracelsus Elena Hospital, Kassel, Germany; Department of Clinical Neurophysiology, University of Göttingen, Göttingen, Germany.
| | - Heike Benes
- Somni Bene Institute for Clinical Research and Sleep Medicine Schwerin and Medical Center University of Rostock, Rostock, Germany
| | - Friederike Sixel-Döring
- Paracelsus Elena Hospital, Kassel, Germany; Department of Neurology, Philipps-University, Marburg, Germany
| | - Kallol Ray Chaudhuri
- National Parkinson Foundation Centre of Excellence, Kings College Hospital, London, United Kingdom
| | - Keisuke Suzuki
- Department of Neurology, Dokkyo Medical University, Tochigi, Japan
| | - Koichi Hirata
- Department of Neurology, Dokkyo Medical University, Tochigi, Japan
| | | | - Claudia Trenkwalder
- Paracelsus Elena Hospital, Kassel, Germany; Department Neurosurgery, University of Göttingen, Göttingen, Germany
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Kohnen R, Martinez-Martin P, Benes H, Trenkwalder C, Högl B, Dunkl E, Walters AS. Validation of the Kohnen Restless Legs Syndrome-Quality of Life instrument. Sleep Med 2016; 24:10-17. [PMID: 27810174 DOI: 10.1016/j.sleep.2016.04.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 04/19/2016] [Accepted: 04/21/2016] [Indexed: 11/19/2022]
Abstract
BACKGROUND Due to the symptoms and the sleep disturbances it causes, Restless Legs Syndrome (RLS) has a negative impact on quality of life. Measurement of such impact can be performed by means of questionnaires, such as the Kohnen Restless Legs Syndrome-Quality of Life questionnaire (KRLS-QoL), a specific 12-item instrument that is self-applied by patients. The present study is aimed at performing a first formal validation study of this instrument. METHODS Eight hundred ninety-one patients were included for analysis. RLS severity was assessed by the International Restless Legs Scale (IRLS), Restless Legs Syndrome-6 scales (RLS-6), and Clinical Global Impression of Severity. In addition the Epworth Sleepiness Scale (ESS) was assessed. Acceptability, dimensionality, scaling assumptions, reliability, precision, hypotheses-related validity, and responsiveness were tested. RESULTS There were missing data in 3.58% patients. Floor and ceiling effects were low for the subscales, global evaluation, and summary index derived from items 1 to 11 after checking that scaling assumptions were met. Exploratory parallel factor analysis showed that the KRLS-QoL may be deemed unidimensional, ie, that all components of the scale are part of one overall general quality of life factor. Indexes of internal consistency (alpha = 0.88), item-total correlation (rS = 0.32-0.71), item homogeneity coefficient (0.41), and scale stability (ICC = 0.73) demonstrated a satisfactory reliability of the KRLS-QoL. Moderate or high correlations were obtained between KRLS-QoL scores and the IRLS, some components of the RLS-6, inter-KRLS-QoL domains, and global evaluations. Known-groups validity for severity levels grouping and responsiveness analysis results were satisfactory, the latter showing higher magnitudes of response for treated than for placebo arms. CONCLUSIONS The KRLS-QoL was proven an acceptable, reliable, valid, and responsive measure to assess the impact of the RLS on quality of life.
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Affiliation(s)
- Ralf Kohnen
- Posthumously, Research Pharmaceutical Services, Inc, Fort Washington, PA, USA; University of Erlangen, Nuremberg, Germany
| | - Pablo Martinez-Martin
- National Center of Epidemiology and CIBERNED, Carlos III Institute of Health, Madrid, Spain
| | - Heike Benes
- Somi Bene Institute for Medical Research and Sleep Medicine, Schwerin, Germany; Medical Center, University of Rostock, Rostock, Germany
| | - Claudia Trenkwalder
- Department of Neurosurgery, University Medical Center, Goettingen, Germany; Paracelsus Elena Clinic, Kassel, Germany
| | - Birgit Högl
- Department of Neurology, Medical University of Innsbruck, Austria
| | | | - Arthur S Walters
- Department of Neurology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.
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Bauer A, Cassel W, Benes H, Kesper K, Rye D, Sica D, Winkelman JW, Bauer L, Grieger F, Joeres L, Moran K, Schollmayer E, Whitesides J, Carney HC, Walters AS, Oertel W, Trenkwalder C. Rotigotine's effect on PLM-associated blood pressure elevations in restless legs syndrome: An RCT. Neurology 2016; 86:1785-93. [PMID: 27164714 PMCID: PMC4862252 DOI: 10.1212/wnl.0000000000002649] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Accepted: 01/28/2016] [Indexed: 11/15/2022] Open
Abstract
Objective: This double-blind, placebo-controlled, interventional trial was conducted to investigate the effects of rotigotine patch on periodic limb movement (PLM)–associated nocturnal systolic blood pressure (SBP) elevations. Methods: Patients with moderate to severe restless legs syndrome (RLS) were randomized to rotigotine (optimal dose [1–3 mg/24 h]) or placebo. Continuous beat-to-beat blood pressure (BP) assessments were performed during polysomnography at baseline and at the end of 4-week maintenance. Primary outcome was change in number of PLM-associated SBP elevations (defined as slope of linear regression ≥2.5 mm Hg/beat-to-beat interval over 5 consecutive heartbeats [≥10 mm Hg]). Additional outcomes were total SBP elevations, PLM-associated and total diastolic BP (DBP) elevations, periodic limb movements index (PLMI), and PLM in sleep arousal index (PLMSAI). Results: Of 81 randomized patients, 66 (37 rotigotine, 29 placebo) were included in efficacy assessments. PLM-associated SBP elevations were significantly reduced with rotigotine vs placebo (least squares mean treatment difference [95% confidence interval (CI)] −160.34 [−213.23 to −107.45]; p < 0.0001). Rotigotine-treated patients also had greater reduction vs placebo in total SBP elevations (−161.13 [−264.47 to −57.79]; p = 0.0028), PLM-associated elevations (−88.45 [−126.12 to −50.78]; p < 0.0001), and total DBP elevations (−93.81 [−168.45 to −19.16]; p = 0.0146), PLMI (−32.77 [−44.73 to −20.80]; p < 0.0001), and PLMSAI (−7.10 [−11.93 to −2.26]; p = 0.0047). Adverse events included nausea (rotigotine 23%; placebo 8%), headache (18% each), nasopharyngitis (18%; 8%), and fatigue (13%; 15%). Conclusions: Further investigation is required to determine whether reductions in nocturnal BP elevations observed with rotigotine might modify cardiovascular risk. Classification of evidence: This study provides Class I evidence that for patients with moderate to severe RLS, rotigotine at optimal dose (1–3 mg/24 h) reduced PLM-associated nocturnal SBP elevations.
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Affiliation(s)
- Axel Bauer
- From the Munich University Clinic and DZHK (German Centre for Cardiovascular Research) (A.B.); Philipps Universität Marburg (W.C., K.K., W.O.); Somni Bene Institut für Medizinische Forschung und Schlafmedizin (H.B.), Schwerin; Medical Center (H.B.), Rostock University, Germany; Emory University (D.R.), Atlanta, GA; Virginia Commonwealth University (D.S.), Richmond; Massachusetts General Hospital (J.W.W.), Boston; UCB Pharma (L.B., F.G., L.J., E.S.), Monheim am Rhein, Germany; UCB Pharma (K.M.), Smyrna, GA; UCB Pharma (J.W.), Raleigh, NC; Evidence Scientific Solutions (H.C.C.), Horsham, UK; Vanderbilt University School of Medicine (A.S.W.), Nashville, TN; Hertie Foundation (W.O.), Frankfurt am Main; and Department of Neurosurgery (C.T.), University Medical Center, Göttingen and Paracelsus-Elena-Klinik, Kassel, Germany.
| | - Werner Cassel
- From the Munich University Clinic and DZHK (German Centre for Cardiovascular Research) (A.B.); Philipps Universität Marburg (W.C., K.K., W.O.); Somni Bene Institut für Medizinische Forschung und Schlafmedizin (H.B.), Schwerin; Medical Center (H.B.), Rostock University, Germany; Emory University (D.R.), Atlanta, GA; Virginia Commonwealth University (D.S.), Richmond; Massachusetts General Hospital (J.W.W.), Boston; UCB Pharma (L.B., F.G., L.J., E.S.), Monheim am Rhein, Germany; UCB Pharma (K.M.), Smyrna, GA; UCB Pharma (J.W.), Raleigh, NC; Evidence Scientific Solutions (H.C.C.), Horsham, UK; Vanderbilt University School of Medicine (A.S.W.), Nashville, TN; Hertie Foundation (W.O.), Frankfurt am Main; and Department of Neurosurgery (C.T.), University Medical Center, Göttingen and Paracelsus-Elena-Klinik, Kassel, Germany
| | - Heike Benes
- From the Munich University Clinic and DZHK (German Centre for Cardiovascular Research) (A.B.); Philipps Universität Marburg (W.C., K.K., W.O.); Somni Bene Institut für Medizinische Forschung und Schlafmedizin (H.B.), Schwerin; Medical Center (H.B.), Rostock University, Germany; Emory University (D.R.), Atlanta, GA; Virginia Commonwealth University (D.S.), Richmond; Massachusetts General Hospital (J.W.W.), Boston; UCB Pharma (L.B., F.G., L.J., E.S.), Monheim am Rhein, Germany; UCB Pharma (K.M.), Smyrna, GA; UCB Pharma (J.W.), Raleigh, NC; Evidence Scientific Solutions (H.C.C.), Horsham, UK; Vanderbilt University School of Medicine (A.S.W.), Nashville, TN; Hertie Foundation (W.O.), Frankfurt am Main; and Department of Neurosurgery (C.T.), University Medical Center, Göttingen and Paracelsus-Elena-Klinik, Kassel, Germany
| | - Karl Kesper
- From the Munich University Clinic and DZHK (German Centre for Cardiovascular Research) (A.B.); Philipps Universität Marburg (W.C., K.K., W.O.); Somni Bene Institut für Medizinische Forschung und Schlafmedizin (H.B.), Schwerin; Medical Center (H.B.), Rostock University, Germany; Emory University (D.R.), Atlanta, GA; Virginia Commonwealth University (D.S.), Richmond; Massachusetts General Hospital (J.W.W.), Boston; UCB Pharma (L.B., F.G., L.J., E.S.), Monheim am Rhein, Germany; UCB Pharma (K.M.), Smyrna, GA; UCB Pharma (J.W.), Raleigh, NC; Evidence Scientific Solutions (H.C.C.), Horsham, UK; Vanderbilt University School of Medicine (A.S.W.), Nashville, TN; Hertie Foundation (W.O.), Frankfurt am Main; and Department of Neurosurgery (C.T.), University Medical Center, Göttingen and Paracelsus-Elena-Klinik, Kassel, Germany
| | - David Rye
- From the Munich University Clinic and DZHK (German Centre for Cardiovascular Research) (A.B.); Philipps Universität Marburg (W.C., K.K., W.O.); Somni Bene Institut für Medizinische Forschung und Schlafmedizin (H.B.), Schwerin; Medical Center (H.B.), Rostock University, Germany; Emory University (D.R.), Atlanta, GA; Virginia Commonwealth University (D.S.), Richmond; Massachusetts General Hospital (J.W.W.), Boston; UCB Pharma (L.B., F.G., L.J., E.S.), Monheim am Rhein, Germany; UCB Pharma (K.M.), Smyrna, GA; UCB Pharma (J.W.), Raleigh, NC; Evidence Scientific Solutions (H.C.C.), Horsham, UK; Vanderbilt University School of Medicine (A.S.W.), Nashville, TN; Hertie Foundation (W.O.), Frankfurt am Main; and Department of Neurosurgery (C.T.), University Medical Center, Göttingen and Paracelsus-Elena-Klinik, Kassel, Germany
| | - Domenic Sica
- From the Munich University Clinic and DZHK (German Centre for Cardiovascular Research) (A.B.); Philipps Universität Marburg (W.C., K.K., W.O.); Somni Bene Institut für Medizinische Forschung und Schlafmedizin (H.B.), Schwerin; Medical Center (H.B.), Rostock University, Germany; Emory University (D.R.), Atlanta, GA; Virginia Commonwealth University (D.S.), Richmond; Massachusetts General Hospital (J.W.W.), Boston; UCB Pharma (L.B., F.G., L.J., E.S.), Monheim am Rhein, Germany; UCB Pharma (K.M.), Smyrna, GA; UCB Pharma (J.W.), Raleigh, NC; Evidence Scientific Solutions (H.C.C.), Horsham, UK; Vanderbilt University School of Medicine (A.S.W.), Nashville, TN; Hertie Foundation (W.O.), Frankfurt am Main; and Department of Neurosurgery (C.T.), University Medical Center, Göttingen and Paracelsus-Elena-Klinik, Kassel, Germany
| | - John W Winkelman
- From the Munich University Clinic and DZHK (German Centre for Cardiovascular Research) (A.B.); Philipps Universität Marburg (W.C., K.K., W.O.); Somni Bene Institut für Medizinische Forschung und Schlafmedizin (H.B.), Schwerin; Medical Center (H.B.), Rostock University, Germany; Emory University (D.R.), Atlanta, GA; Virginia Commonwealth University (D.S.), Richmond; Massachusetts General Hospital (J.W.W.), Boston; UCB Pharma (L.B., F.G., L.J., E.S.), Monheim am Rhein, Germany; UCB Pharma (K.M.), Smyrna, GA; UCB Pharma (J.W.), Raleigh, NC; Evidence Scientific Solutions (H.C.C.), Horsham, UK; Vanderbilt University School of Medicine (A.S.W.), Nashville, TN; Hertie Foundation (W.O.), Frankfurt am Main; and Department of Neurosurgery (C.T.), University Medical Center, Göttingen and Paracelsus-Elena-Klinik, Kassel, Germany
| | - Lars Bauer
- From the Munich University Clinic and DZHK (German Centre for Cardiovascular Research) (A.B.); Philipps Universität Marburg (W.C., K.K., W.O.); Somni Bene Institut für Medizinische Forschung und Schlafmedizin (H.B.), Schwerin; Medical Center (H.B.), Rostock University, Germany; Emory University (D.R.), Atlanta, GA; Virginia Commonwealth University (D.S.), Richmond; Massachusetts General Hospital (J.W.W.), Boston; UCB Pharma (L.B., F.G., L.J., E.S.), Monheim am Rhein, Germany; UCB Pharma (K.M.), Smyrna, GA; UCB Pharma (J.W.), Raleigh, NC; Evidence Scientific Solutions (H.C.C.), Horsham, UK; Vanderbilt University School of Medicine (A.S.W.), Nashville, TN; Hertie Foundation (W.O.), Frankfurt am Main; and Department of Neurosurgery (C.T.), University Medical Center, Göttingen and Paracelsus-Elena-Klinik, Kassel, Germany
| | - Frank Grieger
- From the Munich University Clinic and DZHK (German Centre for Cardiovascular Research) (A.B.); Philipps Universität Marburg (W.C., K.K., W.O.); Somni Bene Institut für Medizinische Forschung und Schlafmedizin (H.B.), Schwerin; Medical Center (H.B.), Rostock University, Germany; Emory University (D.R.), Atlanta, GA; Virginia Commonwealth University (D.S.), Richmond; Massachusetts General Hospital (J.W.W.), Boston; UCB Pharma (L.B., F.G., L.J., E.S.), Monheim am Rhein, Germany; UCB Pharma (K.M.), Smyrna, GA; UCB Pharma (J.W.), Raleigh, NC; Evidence Scientific Solutions (H.C.C.), Horsham, UK; Vanderbilt University School of Medicine (A.S.W.), Nashville, TN; Hertie Foundation (W.O.), Frankfurt am Main; and Department of Neurosurgery (C.T.), University Medical Center, Göttingen and Paracelsus-Elena-Klinik, Kassel, Germany
| | - Lars Joeres
- From the Munich University Clinic and DZHK (German Centre for Cardiovascular Research) (A.B.); Philipps Universität Marburg (W.C., K.K., W.O.); Somni Bene Institut für Medizinische Forschung und Schlafmedizin (H.B.), Schwerin; Medical Center (H.B.), Rostock University, Germany; Emory University (D.R.), Atlanta, GA; Virginia Commonwealth University (D.S.), Richmond; Massachusetts General Hospital (J.W.W.), Boston; UCB Pharma (L.B., F.G., L.J., E.S.), Monheim am Rhein, Germany; UCB Pharma (K.M.), Smyrna, GA; UCB Pharma (J.W.), Raleigh, NC; Evidence Scientific Solutions (H.C.C.), Horsham, UK; Vanderbilt University School of Medicine (A.S.W.), Nashville, TN; Hertie Foundation (W.O.), Frankfurt am Main; and Department of Neurosurgery (C.T.), University Medical Center, Göttingen and Paracelsus-Elena-Klinik, Kassel, Germany
| | - Kimberly Moran
- From the Munich University Clinic and DZHK (German Centre for Cardiovascular Research) (A.B.); Philipps Universität Marburg (W.C., K.K., W.O.); Somni Bene Institut für Medizinische Forschung und Schlafmedizin (H.B.), Schwerin; Medical Center (H.B.), Rostock University, Germany; Emory University (D.R.), Atlanta, GA; Virginia Commonwealth University (D.S.), Richmond; Massachusetts General Hospital (J.W.W.), Boston; UCB Pharma (L.B., F.G., L.J., E.S.), Monheim am Rhein, Germany; UCB Pharma (K.M.), Smyrna, GA; UCB Pharma (J.W.), Raleigh, NC; Evidence Scientific Solutions (H.C.C.), Horsham, UK; Vanderbilt University School of Medicine (A.S.W.), Nashville, TN; Hertie Foundation (W.O.), Frankfurt am Main; and Department of Neurosurgery (C.T.), University Medical Center, Göttingen and Paracelsus-Elena-Klinik, Kassel, Germany
| | - Erwin Schollmayer
- From the Munich University Clinic and DZHK (German Centre for Cardiovascular Research) (A.B.); Philipps Universität Marburg (W.C., K.K., W.O.); Somni Bene Institut für Medizinische Forschung und Schlafmedizin (H.B.), Schwerin; Medical Center (H.B.), Rostock University, Germany; Emory University (D.R.), Atlanta, GA; Virginia Commonwealth University (D.S.), Richmond; Massachusetts General Hospital (J.W.W.), Boston; UCB Pharma (L.B., F.G., L.J., E.S.), Monheim am Rhein, Germany; UCB Pharma (K.M.), Smyrna, GA; UCB Pharma (J.W.), Raleigh, NC; Evidence Scientific Solutions (H.C.C.), Horsham, UK; Vanderbilt University School of Medicine (A.S.W.), Nashville, TN; Hertie Foundation (W.O.), Frankfurt am Main; and Department of Neurosurgery (C.T.), University Medical Center, Göttingen and Paracelsus-Elena-Klinik, Kassel, Germany
| | - John Whitesides
- From the Munich University Clinic and DZHK (German Centre for Cardiovascular Research) (A.B.); Philipps Universität Marburg (W.C., K.K., W.O.); Somni Bene Institut für Medizinische Forschung und Schlafmedizin (H.B.), Schwerin; Medical Center (H.B.), Rostock University, Germany; Emory University (D.R.), Atlanta, GA; Virginia Commonwealth University (D.S.), Richmond; Massachusetts General Hospital (J.W.W.), Boston; UCB Pharma (L.B., F.G., L.J., E.S.), Monheim am Rhein, Germany; UCB Pharma (K.M.), Smyrna, GA; UCB Pharma (J.W.), Raleigh, NC; Evidence Scientific Solutions (H.C.C.), Horsham, UK; Vanderbilt University School of Medicine (A.S.W.), Nashville, TN; Hertie Foundation (W.O.), Frankfurt am Main; and Department of Neurosurgery (C.T.), University Medical Center, Göttingen and Paracelsus-Elena-Klinik, Kassel, Germany
| | - Hannah C Carney
- From the Munich University Clinic and DZHK (German Centre for Cardiovascular Research) (A.B.); Philipps Universität Marburg (W.C., K.K., W.O.); Somni Bene Institut für Medizinische Forschung und Schlafmedizin (H.B.), Schwerin; Medical Center (H.B.), Rostock University, Germany; Emory University (D.R.), Atlanta, GA; Virginia Commonwealth University (D.S.), Richmond; Massachusetts General Hospital (J.W.W.), Boston; UCB Pharma (L.B., F.G., L.J., E.S.), Monheim am Rhein, Germany; UCB Pharma (K.M.), Smyrna, GA; UCB Pharma (J.W.), Raleigh, NC; Evidence Scientific Solutions (H.C.C.), Horsham, UK; Vanderbilt University School of Medicine (A.S.W.), Nashville, TN; Hertie Foundation (W.O.), Frankfurt am Main; and Department of Neurosurgery (C.T.), University Medical Center, Göttingen and Paracelsus-Elena-Klinik, Kassel, Germany
| | - Arthur S Walters
- From the Munich University Clinic and DZHK (German Centre for Cardiovascular Research) (A.B.); Philipps Universität Marburg (W.C., K.K., W.O.); Somni Bene Institut für Medizinische Forschung und Schlafmedizin (H.B.), Schwerin; Medical Center (H.B.), Rostock University, Germany; Emory University (D.R.), Atlanta, GA; Virginia Commonwealth University (D.S.), Richmond; Massachusetts General Hospital (J.W.W.), Boston; UCB Pharma (L.B., F.G., L.J., E.S.), Monheim am Rhein, Germany; UCB Pharma (K.M.), Smyrna, GA; UCB Pharma (J.W.), Raleigh, NC; Evidence Scientific Solutions (H.C.C.), Horsham, UK; Vanderbilt University School of Medicine (A.S.W.), Nashville, TN; Hertie Foundation (W.O.), Frankfurt am Main; and Department of Neurosurgery (C.T.), University Medical Center, Göttingen and Paracelsus-Elena-Klinik, Kassel, Germany
| | - Wolfgang Oertel
- From the Munich University Clinic and DZHK (German Centre for Cardiovascular Research) (A.B.); Philipps Universität Marburg (W.C., K.K., W.O.); Somni Bene Institut für Medizinische Forschung und Schlafmedizin (H.B.), Schwerin; Medical Center (H.B.), Rostock University, Germany; Emory University (D.R.), Atlanta, GA; Virginia Commonwealth University (D.S.), Richmond; Massachusetts General Hospital (J.W.W.), Boston; UCB Pharma (L.B., F.G., L.J., E.S.), Monheim am Rhein, Germany; UCB Pharma (K.M.), Smyrna, GA; UCB Pharma (J.W.), Raleigh, NC; Evidence Scientific Solutions (H.C.C.), Horsham, UK; Vanderbilt University School of Medicine (A.S.W.), Nashville, TN; Hertie Foundation (W.O.), Frankfurt am Main; and Department of Neurosurgery (C.T.), University Medical Center, Göttingen and Paracelsus-Elena-Klinik, Kassel, Germany
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Kohnen R, Martinez-Martin P, Benes H, Trenkwalder C, Högl B, Dunkl E, Walters AS. Rating of daytime and nighttime symptoms in RLS: validation of the RLS-6 scale of restless legs syndrome/Willis-Ekbom disease. Sleep Med 2015; 20:116-22. [PMID: 27318235 DOI: 10.1016/j.sleep.2015.10.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 09/27/2015] [Accepted: 10/06/2015] [Indexed: 11/29/2022]
Abstract
BACKGROUND The International Restless Legs Scale (IRLS) is the most widely used of the scales rating the severity of restless legs syndrome/Willis-Ekbom disease (RLS/WED). It has been well validated and is the primary end point for most of the therapeutic and nontherapeutic studies of RLS/WED. It has excellent psychometric properties, although it does not capture the severity of RLS under a wide variety of circumstances and times of day. Moreover, the IRLS has a large placebo effect. METHODS The Restless Legs Syndrome-6 Scale (RLS-6), however, takes another potentially valuable approach. Six items are rated on a 0-10 scale from no symptoms at 0 to very severe at 10. In addition to questions on satisfaction with sleep and sleepiness, the scale rates the severity of RLS for the past week under four separate circumstances: while falling asleep, during the night, during the day while sitting or lying, and during the day when moving around. The purpose of the current study is to report the validation of the RLS-6 under baseline and therapeutic conditions. RESULTS The RLS-6 seems to be an acceptable, reliable, precise, valid, and responsive instrument for the assessment of RLS severity in a specific and pragmatic manner. CONCLUSIONS At present, we view the RLS-6 not as a replacement for the IRLS but as a supplement, as each scale provides information not captured by the other.
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Affiliation(s)
- Ralf Kohnen
- Posthumously, Research Pharmaceutical Services, Inc., Fort Washington, PA, USA; University of Erlangen-Nuremberg, Genmany
| | - Pablo Martinez-Martin
- National Center of Epidemiology and CIBERNED, Carlos III Institute of Health, Madrid, Spain
| | - Heike Benes
- Somni Bene Institute for Medical Research and Sleep Medicine, Schwerin, Germany; Medical Center, University of Rostock, Rostock, Germany
| | - Claudia Trenkwalder
- Department of Clinical Neurophysiology, University Medical Center, Goettingen, Germany; Paracelsus Elena Clinic, Kassel, Germany
| | - Birgit Högl
- Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | | | - Arthur S Walters
- Department of Neurology, Vanderbilt University School of Medicine, Nashville, TN, USA.
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Walters AS, Frauscher B, Allen R, Benes H, Chaudhuri KR, Garcia-Borreguero D, Lee HB, Picchietti DL, Trenkwalder C, Martinez-Martin P, Stebbins GT, Schrag A. Review of quality of life instruments for the restless legs syndrome/Willis-Ekbom Disease (RLS/WED): critique and recommendations. J Clin Sleep Med 2014; 10:1351-7. [PMID: 25348243 DOI: 10.5664/jcsm.4300] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 10/09/2014] [Indexed: 11/13/2022]
Abstract
OBJECTIVES Over the last decade therapeutic, pathogenetic, epidemiological and genetic research in restless legs syndrome/Willis-Ekbom Disease (RLS/WED) has required the development of specific quality of life scales and sleep scales. A Movement Disorder Society Task Force formally evaluated the quality of these scales. METHODS A literature search retrieved 5 quality of life instruments specific to RLS. As per MDS protocol, each scale was evaluated by 3 criteria which included (a) use in RLS, (b) use by research or clinical groups other than the group that developed the scale, and (c) formal validation and adequate clinimetric properties. Scales were categorized as "Recommended" when all 3 criteria were met, "Suggested" when used for RLS but only one of the other criteria was met, and "Listed" when used in RLS but there was absence of the other two criteria. Details regarding the development, use and clinimetric properties of each instrument are summarized along with the recommendations of the Task Force. RESULTS AND CONCLUSION The Restless Legs Syndrome Quality of Life Scale-Abetz (RLS-QOL-Abetz) is the only scale designated as Recommended for use in cross-sectional assessments and treatment-related changes in RLS quality of life. Daily diaries hold future promise for the evaluation of RLS symptoms without the need for retrospective recall. An important need is the development of pediatric RLS quality of life instruments.
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Affiliation(s)
- Arthur S Walters
- Department of Neurology, Vanderbilt University School of Medicine, Nashville, TN
| | - Birgit Frauscher
- Department of Neurology Medical University of Innsbruck, Austria
| | | | - Heike Benes
- Institute for Medical Research and Sleep Medicine, Schwerin, Germany and University of Rostock, Department of Neurology, Rostock, Germany
| | - K Ray Chaudhuri
- National Parkinson Foundation Center of Excellence, Kings College, London, UK
| | | | - Hochang B Lee
- Department of Psychiatry, Yale University, New Haven, CT
| | - Daniel L Picchietti
- University of Illinois School of Medicine and Carle Foundation Hospital, Urbana, IL
| | | | - Pablo Martinez-Martin
- National Center of Epidemiology and CIBERNED, Carlos III Institute of Health, Madrid, Spain
| | - Glenn T Stebbins
- Department Neurological Sciences, Rush University Medical Center, Chicago, IL
| | - Anette Schrag
- UCL Institute of Neurology, University College, London, UK
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Walters AS, Frauscher B, Allen R, Benes H, Chaudhuri KR, Garcia-Borreguero D, Lee HB, Picchietti DL, Trenkwalder C, Martinez-Martin P, Stebbins GT, Schrag A. Review of diagnostic instruments for the restless legs syndrome/Willis-Ekbom Disease (RLS/WED): critique and recommendations. J Clin Sleep Med 2014; 10:1343-9. [PMID: 25348242 DOI: 10.5664/jcsm.4298] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 10/09/2014] [Indexed: 01/08/2023]
Abstract
OBJECTIVES Over the last decade, increased research on therapy, pathogenesis, epidemiological and genetic aspects of restless legs syndrome/Willis-Ekbom Disease (RLS/WED) has necessitated development of diagnostic instruments specific to RLS. The Movement Disorder Society commissioned a task force to formally evaluate the available evidence on diagnostic instruments in RLS. METHODS A literature search identified 4 instruments specific to RLS. Each instrument was evaluated by 3 criteria, which included (a) use in RLS, (b) use by groups other than the group that developed the instrument, and (c) formal validation and adequate clinimetric properties. Instruments were then qualified as "Recommended" when all 3 criteria were met, "Suggested" when used for RLS but only one of the other criteria are met, and "Listed" when used in RLS but there is absence of the other 2 criteria. Details regarding the development, use, and clinimetric properties of each instrument are summarized, along with the recommendations of the committee. RESULTS AND CONCLUSION The Recommended diagnostic instruments are the Hening Telephone Diagnostic Interview (HTDI), the Cambridge-Hopkins diagnostic questionnaire for RLS (CH-RLSq), and the RLS Diagnostic Index (RLS-DI). An unmet need is the development of a diagnostic instrument for pediatric RLS. Diagnostic instruments are particularly useful in studies where patients are not personally interviewed or examined in the office setting.
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Affiliation(s)
- Arthur S Walters
- Department of Neurology, Vanderbilt University School of Medicine, Nashville, TN
| | - Birgit Frauscher
- Department of Neurology Medical University of Innsbruck, Austria
| | | | - Heike Benes
- Institute for Medical Research and Sleep Medicine, Schwerin, Germany and University of Rostock, Department of Neurology, Rostock, Germany
| | - K Ray Chaudhuri
- National Parkinson Foundation Center of Excellence, Kings College, London, UK
| | | | - Hochang B Lee
- Department of Psychiatry, Yale University, New Haven, CT
| | - Daniel L Picchietti
- University of Illinois School of Medicine and Carle Foundation Hospital, Urbana, IL
| | | | - Pablo Martinez-Martin
- National Center of Epidemiology and CIBERNED, Carlos III Institute of Health, Madrid, Spain
| | - Glenn T Stebbins
- Department Neurological Sciences, Rush University Medical Center, Chicago, IL
| | - Anette Schrag
- UCL Institute of Neurology, University College, London, UK
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Walters AS, Frauscher B, Allen R, Benes H, Chaudhuri KR, Garcia-Borreguero D, Lee HB, Picchietti DL, Trenkwalder C, Martinez-Martin P, Schrag A, Stebbins G. Review of Severity Rating Scales for Restless Legs Syndrome: Critique and Recommendations. Mov Disord Clin Pract 2014; 1:317-324. [PMID: 30363953 DOI: 10.1002/mdc3.12088] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Revised: 08/19/2014] [Accepted: 08/19/2014] [Indexed: 11/06/2022] Open
Abstract
Over the last decade, research in restless legs syndrome (RLS; also known as Willis-Ekbom disease) has increased dramatically. The International Parkinson and Movement Disorder Society commissioned a task force to formally evaluate the available evidence on severity rating scales in RLS. A literature search retrieved instruments specific to RLS. Each scale was evaluated by three criteria: (1) use in RLS; (2) use by research or clinical groups other than the group that developed the scale; and (3) formal validation and adequate clinimetric properties. Scales were then qualified as "recommended" when all three criteria were met, "suggested" when used for RLS but only one of the other criteria was met, and "listed" when only used in RLS. Details regarding the development, use, and psychometric properties of each instrument and the recommendations of the committee are summarized. The scale of the International Restless Legs Syndrome Study Group for rating the severity of RLS (International Restless Legs Scale or IRLS) and the Augmentation Severity Rating Scale fulfilled criteria for "recommended" instruments to assess severity. Future endeavors should include a validation of the Pediatric RLS Severity Scale, the only available instrument for evaluation of the severity of pediatric RLS, and a validation of a patient version of the IRLS that will not require the interface of a live interviewer.
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Affiliation(s)
- Arthur S Walters
- Department of Neurology Vanderbilt University School of Medicine Nashville Tennessee USA
| | - Birgit Frauscher
- Department of Neurology Medical University of Innsbruck Innsbruck Austria
| | | | - Heike Benes
- Institute for Medical Research and Sleep Medicine Schwerin Germany.,Department of Neurology University of Rostock Rostock Germany
| | - K Ray Chaudhuri
- National Parkinson Foundation Center of Excellence Kings College London United Kingdom
| | | | - Hochang B Lee
- Department of Psychiatry Yale University New Haven Connecticut USA
| | - Daniel L Picchietti
- University of Illinois School of Medicine and Carle Foundation Hospital Urbana Illinois USA
| | | | - Pablo Martinez-Martin
- National Center of Epidemiology and CIBERNED Carlos III Institute of Health Madrid Spain
| | - Anette Schrag
- UCL Institute of Neurology University College London United Kingdom
| | - Glenn Stebbins
- Department of Neurological Sciences Rush University Medical Center Chicago Illinois USA
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Mayer G, Benes H, Young P, Bitterlich M, Rodenbeck A. Modafinil in the treatment of idiopathic hypersomnia without long sleep time-a randomized, double-blind, placebo-controlled study. J Sleep Res 2014; 24:74-81. [DOI: 10.1111/jsr.12201] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2013] [Accepted: 06/18/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Geert Mayer
- Hephata Klinik; Schwalmstadt-Treysa Germany
- Department of Neurology; Philipps-Universität Marburg; Marburg Germany
| | - Heike Benes
- Department of Neurology; University of Rostock; Rostock Germany
| | - Peter Young
- Department for Sleep Medicine and Neuromuscular Disorders; University of Münster; Münster Germany
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Trenkwalder C, Benes H, Allen RP. In Memoriam Ralf Kohnen, PhD, Professor of Clinical Psychology. Sleep Med 2014; 15:603-4. [DOI: 10.1016/j.sleep.2014.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Trenkwalder C, Benes H, Garcia-Borreguero D, Grote L, Hopp M, Kohnen R. Opioid treatment is efficacious in the short- and long-term in patients with severe restless legs syndrome after failure of previous medications. Sleep Med 2013. [DOI: 10.1016/j.sleep.2013.11.699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mayer G, Benes H, Young P, Rodenbeck A. Modafinil for the treatment of idiopathic hypersomnia – results of a randomized, double-blind, placebo controlled study. Sleep Med 2013. [DOI: 10.1016/j.sleep.2013.11.481] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Benes H, Trenkwalder C, Garcia-Borreguero D, Bosse B, Hopp M, Kohnen R. Sleep in restless legs syndrome improves during opioid treatment – Results from a large 1-year multi-center trial. Sleep Med 2013. [DOI: 10.1016/j.sleep.2013.11.145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Trenkwalder C, Benes H, Grote L, Högl B, Winkelmann J, Allen R, Hopp M, Bosse B, Kohnen R. Opioid treatment is effective in patients with severe RLS after failure of previous medications —/INS; Results of a 1-year study. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Garcia-Borreguero D, Ferini-Strambi L, Kohnen R, O'Keeffe S, Trenkwalder C, Högl B, Benes H, Jennum P, Partinen M, Fer D, Montagna P, Bassetti CL, Iranzo A, Sonka K, Williams AM. European guidelines on management of restless legs syndrome: report of a joint task force by the European Federation of Neurological Societies, the European Neurological Society and the European Sleep Research Society. Eur J Neurol 2012; 19:1385-96. [DOI: 10.1111/j.1468-1331.2012.03853.x] [Citation(s) in RCA: 116] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Accepted: 07/12/2012] [Indexed: 11/27/2022]
Affiliation(s)
| | | | - Ralf Kohnen
- RPS Research Germany and Psychology Department; University Erlangen-Nuremberg; Nuremberg Germany
| | - Shaun O'Keeffe
- Department of Geriatric Medicine; Galway University Hospitals; Galway Ireland
| | - Claudia Trenkwalder
- Paracelsus-Elena Klinik; Center of Parkinsonism and Movement Disorders; Kassel Germany
- Department of Clinical Neurophysiology; University of Goettingen; Kassel Germany
| | - Birgit Högl
- Department of Neurology; Innsbruck Medical University; Innsbruck Austria
| | - Heike Benes
- Somni Bene Institute for Medical Research and Sleep Medicine, and Neurology Department; University of Rostock; Schwerin Germany
| | - Poul Jennum
- Danish Center for Sleep Medicine; Glostrup Hospital, and Center for Healthy Aging; University of Copenhagen; Copenhagen Denmark
| | - Markku Partinen
- Helsinki Sleep Clinic; Vitalmed Research Centre; Helsinki Finland
| | | | - Pasquale Montagna
- Department of Neurological Sciences; University of Bologna; Bologna Italy
| | - Claudio L. Bassetti
- Department of Neurology; University Hospital (Inselspital), Bern, and Neurocenter of Southern Switzerland; Lugano Switzerland
| | - Alex Iranzo
- Neurology Service and Multidisciplinary Sleep Unit; Hospital Clinic; Barcelona Spain
- Centro de Investigación Biomédica en Red Enfermedades Neurodegenerativas (CIBERNED); Barcelona Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS); Barcelona Spain
| | - Karel Sonka
- Department of Neurology; First Faculty of Medicine, Charles University; Prague Czech Republic
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Scholz H, Benes H, Happe S, Bengel J, Kohnen R, Hornyak M. Psychological distress of patients suffering from restless legs syndrome: a cross-sectional study. Health Qual Life Outcomes 2011; 9:73. [PMID: 21933380 PMCID: PMC3187724 DOI: 10.1186/1477-7525-9-73] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2011] [Accepted: 09/20/2011] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Restless legs syndrome (RLS) is a chronic disorder with substantial impact on quality of life similar to that seen in diabetes mellitus or osteoarthritis. Little is known about the psychological characteristics of RLS patients although psychological factors may contribute to unfavourable treatment outcome. METHODS In an observational cross-sectional design, we evaluated the psychological features of 166 consecutive RLS patients from three outpatient clinics, by means of the Symptom Checklist 90-R (SCL-90-R) questionnaire. Additionally, the Beck Depression Inventory-II (BDI-II) and the International RLS Severity Scale (IRLS) were measured. Both treated and untreated patients were included, all patients sought treatment. RESULTS Untreated patients (n = 69) had elevated but normal scores on the SCL-90-R Global Severity Index (GSI; p = 0.002) and on the sub-scales somatisation (p < 0.001), compulsivity (p = 0.003), depression (p = 0.02), and anxiety (p = 0.004) compared with a German representative sample. In the treated group, particularly in those patients who were dissatisfied with their actual treatment (n = 62), psychological distress was higher than in the untreated group with elevated scores for the GSI (p = 0.03) and the sub-scales compulsivity (p = 0.006), depression (p = 0.012), anxiety (p = 0.031), hostility (p = 0.013), phobic anxiety (p = 0.024), and paranoid ideation (p = 0.012). Augmentation, the most serious side effect of dopaminergic, i.e. first-line treatment of RLS, and loss of efficacy were accompanied with the highest psychological distress, as seen particularly in the normative values of the sub-scales compulsivity and anxiety. Generally, higher RLS severity was correlated with higher psychological impairment (p < 0.001). CONCLUSION Severely affected RLS patients show psychological impairment in multiple psychological domains which has to be taken into account in the treatment regimen.
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Affiliation(s)
- Hanna Scholz
- Interdisciplinary Pain Centre, University Medical Centre, Freiburg 79106, Germany.
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Garcia-Borreguero D, Stillman P, Benes H, Buschmann H, Chaudhuri KR, Gonzalez Rodríguez VM, Högl B, Kohnen R, Monti GC, Stiasny-Kolster K, Trenkwalder C, Williams AM, Zucconi M. Algorithms for the diagnosis and treatment of restless legs syndrome in primary care. BMC Neurol 2011; 11:28. [PMID: 21352569 PMCID: PMC3056753 DOI: 10.1186/1471-2377-11-28] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2010] [Accepted: 02/27/2011] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Restless legs syndrome (RLS) is a neurological disorder with a lifetime prevalence of 3-10%. in European studies. However, the diagnosis of RLS in primary care remains low and mistreatment is common. METHODS The current article reports on the considerations of RLS diagnosis and management that were made during a European Restless Legs Syndrome Study Group (EURLSSG)-sponsored task force consisting of experts and primary care practitioners. The task force sought to develop a better understanding of barriers to diagnosis in primary care practice and overcome these barriers with diagnostic and treatment algorithms. RESULTS The barriers to diagnosis identified by the task force include the presentation of symptoms, the language used to describe them, the actual term "restless legs syndrome" and difficulties in the differential diagnosis of RLS. CONCLUSION The EURLSSG task force reached a consensus and agreed on the diagnostic and treatment algorithms published here.
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Affiliation(s)
| | | | - Heike Benes
- Somni bene Institute for Medical Research and Sleep Medicine, Schwerin and Neurology Department, University of Rostock, Rostock, Germany
| | | | | | | | - Birgit Högl
- Department of Neurology, Innsbruck Medical University, Innsbruck, Austria
| | - Ralf Kohnen
- ReSearch Pharmaceutical Services Inc, Fort Washington, PA, USA
- Psychology Department, University of Erlangen-Nuremberg, Nuremberg, Germany
| | | | - Karin Stiasny-Kolster
- Somnomar, Institute for Medical Research and Sleep Medicine, Marburg and Philipps-University of Marburg, Marburg, Germany
| | - Claudia Trenkwalder
- Paracelsus-Elena Hospital, Center of Parkinsonism and Movement Disorders, Kassel, Germany
| | | | - Marco Zucconi
- Sleep Disorders Center, Department of Neurology, San Raffaele Institute, Milan, Italy
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Benes H, Mattern W, Peglau I, Dreykluft T, Bergmann L, Hansen C, Kohnen R, Banik N, Schoen SW, Hornyak M. Ropinirole improves depressive symptoms and restless legs syndrome severity in RLS patients: a multicentre, randomized, placebo-controlled study. J Neurol 2010; 258:1046-54. [PMID: 21188406 DOI: 10.1007/s00415-010-5879-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2010] [Revised: 11/29/2010] [Accepted: 12/13/2010] [Indexed: 11/25/2022]
Abstract
Comorbid depressive symptoms in restless legs syndrome (RLS) remain a treatment challenge, as some antidepressants aggravate RLS symptoms. Preliminary data in depressive patients suggest antidepressant properties of ropinirole. The present study investigates the effects of ropinirole immediate release (IR) on depressive symptoms and RLS severity. A multicenter, placebo-controlled, double-blind randomized (3:1) study was performed including patients with moderate to severe idiopathic RLS and at least mild depressive symptoms. Ropinirole IR (in flexible doses up to 4 mg/day) or placebo was given for 12 weeks including an uptitration phase of 7 weeks. Visits were scheduled at screening, baseline, and weeks 1, 4, and 12 with additional telephone contacts for dosing decisions. The modified intent to treat population comprised 231 patients (171 ropinirole, 60 placebo). The MADRS (Montgomery-Asberg Depression Rating Scale) scores decreased from baseline to week 12 from 18.8 to 8.7 in the ropinirole group and from 18.4 to 12.1 in the placebo group (primary endpoint, adjusted mean treatment difference -3.6 (95% CI: -5.6 to -1.6, significance in favor of ropinirole: P < 0.001). The superiority of ropinirole compared to placebo was confirmed by the Hamilton Scale for Depression and Beck Depression Inventory-II scores. RLS severity scores (IRLS) decreased by 14.7 (ropinirole) and by 9.9 (placebo, P < 0.001) points. Three out of four subdomains of the Medical Outcomes Study Sleep Scale improved significantly. The findings indicate that mild to moderate depressive symptoms should not be treated before sufficient therapy for RLS. Antidepressant medication can be necessary if depression symptoms still persist even if RLS symptoms are ameliorated.
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Affiliation(s)
- Heike Benes
- Somni-Bene Institute for Medical Research and Sleep Medicine, Schwerin, Germany
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Garcia-Borreguero D, Allen R, Kohnen R, Benes H, Winkelman J, Högl B, Ferini-Strambi L, Zucconi M, Trenkwalder C. Loss of response during long-term treatment of restless legs syndrome: guidelines approved by the International Restless Legs Syndrome Study Group for use in clinical trials. Sleep Med 2010; 11:956-7. [PMID: 20817602 DOI: 10.1016/j.sleep.2010.08.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Accepted: 08/03/2010] [Indexed: 11/26/2022]
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Trenkwalder C, Garcia-Borreguero D, Benes H, Chaudhuri KR, Ferini-Strambi L, Högl B, Kohnen R, Schollmayer E. Rotigotin transdermales System wirksam in der Behandlng des RLS: Ergebnisse einer kontrollierten europäischen 6-Monatsstudie und Langzeitergebnisse. Akt Neurol 2009. [DOI: 10.1055/s-0029-1238347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Benes H. Neurologische Schlafstörungen – Versorgung in einem ambulanten Setting. Akt Neurol 2009. [DOI: 10.1055/s-0029-1238524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Hornyak M, Benes H, Kohnen R, Banik N, Schoen SW, Bergmann L. Besserung depressiver Symptome, der Restless Legs Syndrom-Symptomatik und des Schlafes bei Patienten mit idiopathischem RLS unter nicht-retardiertem Ropinirol: eine multizentrische, randomisierte, placebokontrollierte Studie in Deutschland. Akt Neurol 2009. [DOI: 10.1055/s-0029-1238655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Benes H, von Eye A, Kohnen R. Empirical evaluation of the accuracy of diagnostic criteria for Restless Legs Syndrome. Sleep Med 2008; 10:524-30. [PMID: 18996741 DOI: 10.1016/j.sleep.2008.06.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2008] [Revised: 06/04/2008] [Accepted: 06/05/2008] [Indexed: 11/24/2022]
Abstract
BACKGROUND In accordance with the diagnostic criteria of the International Restless Legs Syndrome (RLS) Study Group, the diagnosis of RLS is exclusively based on subjective information. Patients must report an urge to move the legs (and arms) with or without unpleasant sensations which is engendered by rest, relieved by movement, and worse in the evening or at night than during the day (essential criteria). Objective information such as excessive periodic leg movements, positive response to dopaminergic medication, family history of RLS or findings of a neurological examination cannot substitute any of the essential criteria but are considered both supportive for the RLS diagnosis and important for decisions on differential diagnoses. In this article, we report a systematic empirical analysis of the accuracy of diagnostic decisions based on all diagnostic criteria being either "essential" or "non-essential." METHODS We re-analyzed data from a validation study for the RLS Diagnostic Index, in which ten items related to diagnostic criteria were compared with an expert diagnosis of RLS (n = 86) and other sleep-related diagnoses (n = 93). The value of individual diagnostic criteria and features of RLS predictive of the expert diagnoses were analyzed with logistic regression models by increasing the set of diagnostic criteria stepwise based on delta-chi(2) tests. RESULTS The essential diagnostic criteria share a large amount of variance in the prediction of the expert diagnosis. Three of the four essential criteria (urge to move the legs, which is engendered by rest and worse in the evening) almost completely determine the expert diagnosis. However, adding response to dopaminergic medication to the set of the essential criteria increased the effect size in the logistic regression model from 69.4% to 88.4%, indicating a relevant improvement of the accuracy in supporting or excluding the diagnosis of RLS. CONCLUSION On the basis of our exploratory empirical analysis we conclude that the accuracy of diagnostic decision making in patients suspicious for RLS can be improved by inclusion of objective information. Response to dopaminergics is the most important criterion which both supports the "true" diagnosis of RLS, if present, and is also relevant to exclude mimics of RLS.
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Affiliation(s)
- Heike Benes
- Somni bene Institute for Medical Research and Sleep Medicine, Schwerin and Neurology Department, University of Rostock, Germany.
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Oertel WH, Benes H, Garcia-Borreguero D, Geisler P, Högl B, Trenkwalder C, Tacken I, Schollmayer E, Kohnen R, Stiasny-Kolster K. One year open-label safety and efficacy trial with rotigotine transdermal patch in moderate to severe idiopathic restless legs syndrome. Sleep Med 2008; 9:865-73. [PMID: 18753003 DOI: 10.1016/j.sleep.2008.04.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2007] [Revised: 03/28/2008] [Accepted: 04/03/2008] [Indexed: 10/21/2022]
Abstract
BACKGROUND Long-term efficacy and tolerability data are not yet available for patch formulations of dopamine agonists in restless legs syndrome. METHODS Efficacy and safety of rotigotine (0.5-4mg/24h), formulated as a once-daily transdermal system (patch), were investigated in an open extension (SP710) of a preceding 6-week placebo-controlled trial (SP709, 341 randomized patients) in patients with idiopathic restless legs syndrome. For efficacy assessment the international RLS severity scale (IRLS), the RLS-6 scales, the clinical global impressions (CGI) and the QoL-RLS questionnaire were administered. In addition, long-term tolerability and safety were assessed. RESULTS Of 310 patients who finished the controlled trial, 295 (mean age 58+/-10 years, 66% females) with a mean IRLS score of 27.8+/-5.9 at baseline of SP709 were included. We report results after one year of this ongoing long-term trial. Two hundred twenty patients (retention rate=74.6%) completed the 12-month follow-up period. The mean daily dose was 2.8+/-1.2mg/24h with 4mg/24h (40.6%) being the most frequently applied dose; 14.8% were sufficiently treated with 0.5 or 1.0mg/24h. The IRLS total score improved by ?17.4+/-9.9 points between baseline and end of Year 1 (p<0.001). The other measures of severity, sleep satisfaction and quality of life supported the efficacy of rotigotine (p<0.001 for pre-post-comparisons of all efficacy variables). The tolerability was described as "good" or "very good" by 80.3% of all patients. The most common adverse events were application site reactions (40.0%), which led to withdrawal in 13.2%. Further relatively frequent adverse events were nausea (9.5%) and fatigue (6.4%). Two drug-related serious adverse events, nausea and syncope, required hospitalization. Symptoms of augmentation were not reported by the patients. CONCLUSION Rotigotine provided a stable, clinically relevant improvement in all efficacy measures throughout one year of maintenance therapy. The transdermal patch was safe and generally well tolerated by the majority of patients. Comparable to any transdermal therapy, application site reactions were the main treatment complication.
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Trenkwalder C, Högl B, Benes H, Kohnen R. Augmentation in restless legs syndrome is associated with low ferritin. Sleep Med 2008; 9:572-4. [DOI: 10.1016/j.sleep.2007.07.020] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2006] [Revised: 07/11/2007] [Accepted: 07/30/2007] [Indexed: 11/30/2022]
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Trenkwalder C, Kohnen R, Allen RP, Benes H, Ferini-Strambi L, Garcia-Borreguero D, Hadjigeorgiou GM, Happe S, Högl B, Hornyak M, Klein C, Nass A, Montagna P, Oertel WH, O'Keeffe S, Paulus W, Poewe W, Provini F, Pramstaller PP, Sieminski M, Sonka K, Stiasny-Kolster K, de Weerd A, Wetter TC, Winkelmann J, Zucconi M. Clinical trials in restless legs syndrome--recommendations of the European RLS Study Group (EURLSSG). Mov Disord 2008; 22 Suppl 18:S495-504. [PMID: 17530666 DOI: 10.1002/mds.21538] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
The European Restless Legs Syndrome (RLS) Study Group (EURLSSG) is an association of European RLS experts who are actively involved in RLS research. A major aim of the Study Group is the development and continuous improvement of standards for diagnosis and treatment of RLS. Several members developed study designs and evaluation methods in investigator-initiated trials early in the 1990s, and all members have since contributed to many pivotal and nonpivotal drug trials for the treatment of RLS. The recommendations on clinical investigations of pharmacological treatment of RLS patients summarize the group's expertise and knowledge acquired through clinical trials. The recommendations primarily address how to plan and conduct confirmatory, randomized clinical studies in patients with idiopathic RLS. Advice is presented for the diagnosis of RLS and clinical and polysomnographic inclusion and exclusion criteria. Primary and secondary endpoints for an evaluation of efficacy are based on a critical description of validated methods for both short- and long-term trials, also in special populations (children, pregnant women, elderly patients). The recommendations include the assessment of augmentation. Finally, general issues including the evaluation of safety and tolerability, as well as specific neurological and cardiovascular risks and sleep attacks/daytime somnolence, are discussed. The aim of these recommendations is to support research groups or pharmaceutical companies in the design of optimized study protocols.
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Affiliation(s)
- Claudia Trenkwalder
- Paracelsus-Elena Hospital, Center of Parkinsonism and Movement Disorders, Klinikstr. 16, 34128 Kassel, Germany.
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Benes H, Walters AS, Allen RP, Hening WA, Kohnen R. Definition of restless legs syndrome, how to diagnose it, and how to differentiate it from RLS mimics. Mov Disord 2008; 22 Suppl 18:S401-8. [PMID: 17566118 DOI: 10.1002/mds.21604] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Restless legs syndrome (RLS) is a clinical diagnosis based primarily on self-reports of individuals. The International RLS Study Group has published diagnostic criteria that are essential for an operational diagnosis of RLS; further clinical features are considered by the group supportive for or associated with RLS. However, sensitivity and specificity are not perfect and "mimics" of RLS have been reported, i.e., other conditions like nocturnal cramps sometimes can appear to fulfill the essential diagnostic criteria indicating the need for more thorough understanding of the diagnostic criteria and better differential diagnoses. To contribute to the accuracy of diagnostic processes in RLS, we recapitulate the definition of RLS as an urge to move focused on the legs (and arms in some patients). This urge to move often but not always occurs together with dysesthesia, i.e. unpleasant abnormal sensations appearing without any apparent sensory stimulation. The urge to move and any accompanying dysesthesia must be engendered by rest, relieved by movement and worse in the evening or night. Succinctly, RLS can be summarized in medical terminology as a "movement-responsive quiescegenic nocturnal focal akathisia usually with dysesthesias." Empirical approaches to investigate the independence of the essential criteria "worsening at night" and "worsening at rest" are reported. Possible differential diagnoses of RLS are discussed under the perspective of the NIH diagnostic criteria of RLS. Standardized methods to assess a RLS diagnosis are presented which might improve differential diagnosis and in general the reliability and validity of RLS diagnosis.
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Affiliation(s)
- Heike Benes
- Somni Bene Institute for Medical Research and Sleep Medicine, Schwerin, Germany.
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Oertel WH, Benes H, Garcia-Borreguero D, Geisler P, Högl B, Saletu B, Trenkwalder C, Sommerville KW, Schollmayer E, Kohnen R, Stiasny-Kolster K. Efficacy of rotigotine transdermal system in severe restless legs syndrome: a randomized, double-blind, placebo-controlled, six-week dose-finding trial in Europe. Sleep Med 2007; 9:228-39. [PMID: 17553743 DOI: 10.1016/j.sleep.2007.04.010] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2007] [Revised: 03/12/2007] [Accepted: 04/04/2007] [Indexed: 11/16/2022]
Abstract
BACKGROUND In a pilot placebo-controlled study, low dosages of 0.5-2mg/24h rotigotine showed a dose-dependent beneficial effect in restless legs syndrome (RLS) patients. METHODS Efficacy and safety of the dopamine agonist rotigotine, formulated as a once-daily transdermal system (patch), was investigated for five fixed dosages and compared to placebo in patients with idiopathic RLS in a double-blind, randomized, parallel-group, multicenter, six-week dose-finding trial. Primary efficacy measure was the total score of the International RLS Severity Scale (IRLS); in addition, the RLS-6 scales and the Clinical Global Impressions (CGI) were administered. RESULTS Of 371 enrolled patients, 341 patients (mean age 58+/-10years, 67% females) were randomized. The IRLS total score improved between baseline and end of the six-week treatment period by -10.6 (0.5mg/24h rotigotine; patch area 2.5cm2), -15.1 (1mg/24h; 5cm2), -15.7 (2mg/24h; 10cm2), -17.5 (3mg/24h; 15cm2), and -14.8 (4mg/24h, 20cm2) as compared to placebo (-9.2). The hierarchical statistical test procedure demonstrated superiority of rotigotine over placebo for 4mg/24h, 3mg/24h, 2mg/24h, and 1mg/24h, with p-values of 0.0013, <0.0001, 0.0003, and 0.0004, respectively. Only the 0.5mg/24h dose was not different compared to placebo (p=0.2338). The CGI and the RLS-6 severity items supported the efficacy of the rotigotine doses beyond 0.5mg/24h. The most frequent side effects were application site reactions and nausea and tended to be more frequent with higher doses. CONCLUSIONS This dose-finding trial identified the range for a maintenance dose of rotigotine from 1mg/24h to 3mg/24h. The lowest dose was ineffective and, with the highest dose, no additional benefit was observed.
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Affiliation(s)
- Wolfgang H Oertel
- Department of Neurology, Philipps University, Rudolf-Bultmann-Strasse 8, D-35039 Marburg, Germany
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Benes H, Högl B, Palla D, Kohnen R. O0043 Transdermal Lisuride provides early and sustainded improvement in quality of sleep and daytime tiredness in RLS patients. Sleep Med 2007. [DOI: 10.1016/s1389-9457(07)70225-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Benes H, Kuchler G, Kohnen R. P0062 Validation of the new actigraphy system SOMNOwatch® for the measurement of periodic leg movements. Sleep Med 2007. [DOI: 10.1016/s1389-9457(07)70321-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kohnen R, Benes H, Högl B, Trenkwalder C. P0104 Previous augmentation is not predictive for re-occurrence of augmentation under dopaminergic therapy in severe restless legs syndrome. Sleep Med 2007. [DOI: 10.1016/s1389-9457(07)70359-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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García-Borreguero D, Allen RP, Benes H, Earley C, Happe S, Högl B, Kohnen R, Paulus W, Rye D, Winkelmann J. Augmentation as a treatment complication of restless legs syndrome: Concept and management. Mov Disord 2007; 22 Suppl 18:S476-84. [PMID: 17580331 DOI: 10.1002/mds.21610] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Augmentation constitutes the main complication of long-term dopaminergic treatment in restless legs syndrome (RLS). Although this condition was first described in 1996, and is characterized by an overall increase in severity of RLS symptoms (including earlier onset of symptoms during the day, faster onset of symptoms when at rest, expansion to the upper limbs and trunk, and shorter duration of the treatment effect), precise diagnostic criteria were not established until 2003. These criteria have recently been updated to form a new definition of augmentation based on multicentric studies. The present article reviews our current knowledge on clinical diagnosis, evaluation, pathophysiology, and treatment recommendations for this condition.
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Kohnen R, Allen RP, Benes H, Garcia-Borreguero D, Hening WA, Stiasny-Kolster K, Zucconi M. Assessment of restless legs syndrome—Methodological approaches for use in practice and clinical trials. Mov Disord 2007; 22 Suppl 18:S485-94. [PMID: 17534967 DOI: 10.1002/mds.21588] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
The Restless Legs Syndrome (RLS) is a sensorimotor disorder that has only recently been extensively investigated by validated methods. Following the first presentation of diagnostic criteria by the International RLS Study Group in 1995, several methods were specifically developed for clinical trials in RLS or adapted from other areas of medicine and health sciences. We present a critical overview on validated methods to assess (1) severity of RLS symptoms [International RLS Rating Scale (IRLS), John Hopkins RLS Severity Scale (JHRLSSS), the RLS-6 scales, and the investigator-based Clincial Global Impressions (CGI)]; (2) quality of life [RLS Quality of Life Instrument (RLS-QLI), Hopkins RLS Quality of Life Questionnaire (RLSQoL), and the RLS Quality of Life Questionnaire (QoL-RLS)]; (3) sleep disturbances and sudden onset of sleep; (4) sleep laboratory methods (polysomnography, limb activity monitoring by actigraphy) to evaluate sleep and periodic leg movements (including the "suggested immobilization test"); and (5) severity of augmentation (Augmentation Severity Rating Scale, ASRS). It is concluded that several validated methods are available to investigate the main features of RLS in practice and in clinical trials; however, further developments are needed to address new questions like the consequences of RLS on life functioning in areas such as ability to travel, days missed at work or impaired work performance.
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Affiliation(s)
- Ralf Kohnen
- IMEREM Institute for Medical Research Management, Biometrics Ltd., University of Erlangen-Nuremberg, Nuremberg, Germany.
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Oertel WH, Trenkwalder C, Zucconi M, Benes H, Borreguero DG, Bassetti C, Partinen M, Ferini-Strambi L, Stiasny-Kolster K. State of the art in restless legs syndrome therapy: Practice recommendations for treating restless legs syndrome. Mov Disord 2007; 22 Suppl 18:S466-75. [PMID: 17516455 DOI: 10.1002/mds.21545] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Dopaminergic agents are the best-studied agents and are considered first-line treatment of restless legs syndrome (RLS). Extensive data are available for levodopa, pramipexole, and ropinirole, which have approval for the indication RLS, and to a smaller extent for cabergoline, pergolide, and rotigotine. Apart from one recent study, comparing two active drugs (levodopa and cabergoline), no comparative studies have been published. The individual treatment regimen with the most appropriate agent concerning efficacy and side effects has to be selected by the treating physician. On the basis of these clinical trials and expert opinion of the authors, a treatment algorithm is proposed to support the search for the optimal individual treatment. Opioids and anticonvulsants such as gabapentine are second-line options in individual patients. Iron substitution is justified in people with iron deficiency related RLS (ferritin concentration lower than 50 microg/L).
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Trenkwalder C, Benes H, Grote L, Happe S, Högl B, Mathis J, Saletu-Zyhlarz GM, Kohnen R. Cabergoline compared to levodopa in the treatment of patients with severe restless legs syndrome: Results from a multi-center, randomized, active controlled trial. Mov Disord 2007; 22:696-703. [PMID: 17274039 DOI: 10.1002/mds.21401] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
We report the first large-scale double-blind, randomly assigned study to compare two active dopaminergic therapies for Restless Legs Syndrome (RLS), the dopamine agonist cabergoline (CAB) and levodopa/benserazide (levodopa). Patients with idiopathic RLS were treated with fixed daily doses of 2 or 3 mg CAB or 200 or 300 mg levodopa for 30 weeks. Efficacy was assessed by changes in the IRLS (International RLS Severity Scale) and by time to discontinuation of treatment due to loss of efficacy or augmentation. 361 of 418 screened patients (age 58 +/- 12 years, 71% females) were randomly assigned and treated (CAB: n = 178; levodopa: n = 183) in 51 centers of four European countries. Baseline IRLS total score was 25.7 +/- 6.8. The baseline-adjusted mean change from baseline to week 6 in IRLS sum score was d = -16.1 in the CAB group and d = -9.5 in the levodopa group (d = -6.6, P < 0.0001). More patients in the levodopa group (24.0%) than in the CAB group (11.9%, P = 0.0029, log-rank test) discontinued because of loss of efficacy (14.2% vs. 7.9%, P = 0.0290) or augmentation (9.8% vs. 4.0%, P = 0.0412). Adverse events (AEs) occurred in 83.1% of the CAB group and in 77.6% of the levodopa group. In both groups, most frequent AEs were gastrointestinal symptoms (CAB: 55.6%, levodopa: 30.6%, P < 0.0001). This first large-scale active controlled study in RLS showed superior efficacy of cabergoline versus levodopa after a 30-week long-term therapy. Tolerability was found more favorable with levodopa than with cabergoline.
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Benes H, Deissler A, Rodenbeck A, Engfer A, Kohnen R. Lisuride treatment of restless legs syndrome: first studies with monotherapy in de novo patients and in combination with levodopa in advanced disease. J Neural Transm (Vienna) 2006; 113:87-92. [PMID: 16372146 DOI: 10.1007/s00702-005-0386-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2005] [Accepted: 09/10/2005] [Indexed: 11/25/2022]
Abstract
In two 4-week polysomnography pilot studies with 10 patients each, we investigated the efficacy of oral lisuride as monotherapy in de novo RLS patients as well as in combination with levodopa in advanced RLS. Daily doses at study end were 0.3 mg lisuride, plus 150 mg levodopa in the combination study. Marked improvements occurred in both studies in different PLM indexes and in the CGI. Levodopa dose could be decreased by 27%. Lisuride might be an efficacious treatment for RLS in general, and in combination with levodopa in advanced stage.
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Affiliation(s)
- H Benes
- Somni bene Institute for Medical Research and Sleep Medicine, Schwerin, Germany.
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Oertel WH, Benes H, Bodenschatz R, Peglau I, Warmuth R, Happe S, Geisler P, Cassel W, Leroux M, Kohnen R, Stiasny-Kolster K. Efficacy of cabergoline in restless legs syndrome: A placebo-controlled study with polysomnography (CATOR). Neurology 2006; 67:1040-6. [PMID: 16931508 DOI: 10.1212/01.wnl.0000237742.08297.22] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To assess the efficacy and safety of the dopamine agonist cabergoline in the treatment of patients with idiopathic restless legs syndrome (CATOR study). METHODS Patients with moderate to severe restless legs syndrome (RLS) were randomly assigned to cabergoline (single evening dose: 2 mg) or placebo and treated for 5 weeks in a double-blind, multicenter polysomnography (PSG) trial. The primary efficacy measures were the periodic leg movements during sleep arousal index (PLMS-AI) and sleep efficiency. These and further PSG variables were monitored by centrally evaluated PSG. Severity of RLS was assessed using the International RLS Study Group Severity Scale (IRLS), the RLS-6 scales, the Sleep Questionnaire Form A (SF-A; quality of sleep), and the Quality of Life for RLS questionnaire. RESULTS Forty-three patients were treated and 40 patients were evaluated with PSG (age 56 +/- 10 years, 73% women). Cabergoline was superior to placebo in terms of the PLMS-AI (-17.7 +/- 16.4 vs -4.5 +/- 20.0 placebo; p = 0.0024), sleep efficiency (+6.2 +/- 13.9% vs +3.3 +/- 11.7%; p = 0.0443), PLMS index (p = 0.0014), PLM index (p = 0.0012), and total sleep time (p = 0.0443). Improvements in IRLS total score (-23.7 +/- 11.2 vs -7.9 +/- 11.0 placebo; p = 0.0002), RLS-6 severity scales during the night (p = 0.0010) and during the day (p = 0.0018), Clinical Global Impressions severity item (p = 0.0003), sleep quality (p = 0.0180), SF-A sleep quality (p = 0.0371), and QoL-RLS (p = 0.0247) were larger in patients treated with cabergoline compared with the placebo group. Adverse events were only mild and well-known side effects of dopamine agonists. CONCLUSION Single-evening cabergoline is an efficacious and well-tolerated short-term therapy for sensorimotor symptoms of restless legs syndrome and associated sleep disturbances.
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Affiliation(s)
- W H Oertel
- Department of Neurology, Center of Nervous Diseases, Philipps-University Marburg, Rudolf-Bultmann-Str. 8, D-35033 Marburg, Germany.
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Trenkwalder C, Grothe L, Otto V, Sommer H, Happe S, Schlinsog K, Vogel H, Benes H. Multi-national, multi-center, randomised, double-blind, active controlled trial to compare efficacy and tolerability of cabergoline and levodopa in patients with severe restless legs syndrome. Akt Neurol 2005. [DOI: 10.1055/s-2005-919538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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