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Espay AJ, Stocchi F, Pahwa R, Albanese A, Ellenbogen A, Ferreira JJ, Giladi N, Gurevich T, Hassin-Baer S, Hernandez-Vara J, Isaacson SH, Kieburtz K, LeWitt PA, Lopez-Manzanares L, Olanow CW, Poewe W, Sarva H, Yardeni T, Adar L, Salin L, Lopes N, Sasson N, Case R, Rascol O. Safety and efficacy of continuous subcutaneous levodopa-carbidopa infusion (ND0612) for Parkinson's disease with motor fluctuations (BouNDless): a phase 3, randomised, double-blind, double-dummy, multicentre trial. Lancet Neurol 2024; 23:465-476. [PMID: 38499015 DOI: 10.1016/s1474-4422(24)00052-8] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/18/2024] [Accepted: 01/30/2024] [Indexed: 03/20/2024]
Abstract
BACKGROUND Conventional oral levodopa therapy for the treatment of Parkinson's disease can be associated with variations in plasma concentrations. Levodopa infusion strategies might provide more consistent drug delivery and fewer motor fluctuations. We aimed to assess the safety and efficacy of a continuous 24 h/day subcutaneous infusion of ND0612 (a levodopa-carbidopa solution) compared with oral immediate-release levodopa-carbidopa for the treatment of motor fluctuations in people with Parkinson's disease. METHODS We conducted a phase 3, randomised, double-blind, double-dummy, active-controlled, multicentre trial at 117 academic and community neurology sites in 16 countries, including in Europe, Israel, and the USA. Eligible participants were men and women aged 30 years or older with a diagnosis of Parkinson's disease (Hoehn and Yahr stage ≤3 in the on state) who experienced at least 2·5 h/day of off time. Participants underwent an open-label run-in phase (<12 weeks), during which time optimal regimens were established for both oral immediate-release levodopa-carbidopa and for 24 h/day subcutaneous ND0612 infusion (levodopa-carbidopa 60·0/7·5 mg/mL), with supplemental oral levodopa-carbidopa if needed. Participants were then randomly assigned (1:1) to 12 weeks of double-blind treatment with their optimised regimen of either subcutaneous ND0612 or oral levodopa-carbidopa, with matching oral or subcutaneous placebo given as required to maintain blinding. Randomisation was done via an interactive web response system, stratified by region, using a permuted block schedule. Participants, study partners, treating investigators, study site personnel, and the sponsor were masked to treatment group allocation. The primary efficacy endpoint was the change from baseline (ie, time of randomisation, when all patients were receiving an optimised open-label ND0612 regimen) to end of the double-blind phase in total daily on time without troublesome dyskinesia, analysed by intention to treat. This trial is registered with ClinicalTrials.gov, NCT04006210, and is complete. FINDINGS Between Sept 30, 2019, and April 8, 2022, 381 participants were enrolled, of whom 259 (68%) were randomly assigned, 128 (49%) to subcutaneous ND0612 and 131 (51%) to oral levodopa-carbidopa. 243 (94%) participants completed the study. Treatment with subcutaneous ND0612 provided an additional 1·72 h (95% CI 1·08 to 2·36) of on time without troublesome dyskinesia compared with oral levodopa-carbidopa (change from baseline of -0·48 h [-0·94 to -0·02] with subcutaneous ND0612 vs -2·20 h [-2·65 to -1·74] with oral levodopa-carbidopa; p<0·0001). Significant treatment differences favouring subcutaneous ND0612 were also found in the first four of nine prespecified hierarchical outcomes of daily off time (-1·40 h [95% CI -1·99 to -0·80]), Movement Disorders Society-Unified Parkinson's Disease Rating Scale part II scores (-3·05 [-4·28 to -1·81]), Patients Global Impression of Change (odds ratio [OR] 5·31 [2·67 to 10·58]), and Clinical Global Impression of Improvement (OR 7·23 [3·57 to 14·64]). Hierarchical testing ended after the fourth secondary endpoint. Adverse events were reported by 287 (89%) of 322 participants during open-label ND0612 optimisation, and by 103 (80%) of 128 in the ND0612 group and 97 (74%) of 131 in the oral levodopa-carbidopa group during the double-blind phase. The most common adverse events were infusion-site reactions (266 [83%] participants during open-label ND0612, and 73 [57%] in the ND0612 group vs 56 [43%] in the oral levodopa-carbidopa group during the double-blind phase), most of which were mild. Serious adverse events in four participants in the ND0612 group were related to study treatment (infusion-site cellulitis [n=2], infusion-site abscess and infusion-site ulcer [n=1]; and paraesthesia and peripheral sensorimotor neuropathy [n=1]). One participant in the ND0612 group died during the double-blind phase, but the death was not related to study treatment (fall leading to traumatic brain injury). INTERPRETATION Results of this phase 3 study showed that subcutaneous ND0612 used in combination with oral immediate-release levodopa-carbidopa increased on time without troublesome dyskinesia and reduced off time, with a favourable benefit-risk profile. ND0612 might offer a safe and efficacious subcutaneous levodopa infusion approach to managing motor fluctuations in people with Parkinson's disease. The ongoing open-label extension phase will provide further information on the long-term efficacy and safety of treatment. FUNDING NeuroDerm.
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Affiliation(s)
- Alberto J Espay
- James J and Joan A Gardner Center for Parkinson's Disease and Movement Disorders, University of Cincinnati, Cincinnati, OH, USA.
| | - Fabrizio Stocchi
- Department of Neurology, University San Raffaele Roma and Institute for Research and Medical Care IRCCS San Raffaele, Rome, Italy
| | - Rajesh Pahwa
- Department of Neurology, University of Kansas Medical Center, Kansas City, KS, USA
| | - Alberto Albanese
- Department of Neurology, IRCCS Humanitas Research Hospital, Rozzano, Italy
| | - Aaron Ellenbogen
- Michigan Institute for Neurological Disorders, Farmington Hills, MI, USA
| | - Joaquim J Ferreira
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal; Campus Neurológico Sénior, Torres Vedras, Portugal
| | - Nir Giladi
- Brain Institute, Tel Aviv Medical Center, Faculty of Medicine, Sagol School of Neurosciences, Tel Aviv University, Tel Aviv, Israel
| | - Tanya Gurevich
- Movement Disorders Unit, Neurological Institute, Tel Aviv Medical Center, Faculty of Medicine, Sagol School of Neurosciences, Tel Aviv University, Tel Aviv, Israel
| | - Sharon Hassin-Baer
- Movement Disorders Institute, Department of Neurology, Sheba Medical Center, Tel Hashomer, Israel; Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Jorge Hernandez-Vara
- Neurology Department and Neurodegenerative Disorders Research Group, Vall D'Hebron Hospital, Barcelona, Spain; Hospital Universitari Vall D'Hebron, Barcelona, Spain
| | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | | | - Peter A LeWitt
- Department of Neurology, Wayne State University School of Medicine, Detroit, MI, USA; Department of Neurology, Henry Ford Hospital, Detroit, MI, USA
| | | | - C Warren Olanow
- Clintrex Research Corp, Sarasota, FL, USA; Department of Neurology, Mount Sinai School of Medicine, New York, NY, USA
| | - Werner Poewe
- Department of Neurology, Medical University Innsbruck, Innsbruck, Austria
| | | | | | | | | | | | | | | | - Olivier Rascol
- University of Toulouse 3, University Hospital of Toulouse, INSERM, Clinical Investigation Center CIC1436, Department of Neurosciences and Department of Clinical Pharmacology, Toulouse, France; NS-Park/FCRIN Network, Toulouse, France.
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Gibbons CH, Levine T, Adler C, Bellaire B, Wang N, Stohl J, Agarwal P, Aldridge GM, Barboi A, Evidente VGH, Galasko D, Geschwind MD, Gonzalez-Duarte A, Gil R, Gudesblatt M, Isaacson SH, Kaufmann H, Khemani P, Kumar R, Lamotte G, Liu AJ, McFarland NR, Miglis M, Reynolds A, Sahagian GA, Saint-Hillaire MH, Schwartzbard JB, Singer W, Soileau MJ, Vernino S, Yerstein O, Freeman R. Skin Biopsy Detection of Phosphorylated α-Synuclein in Patients With Synucleinopathies. JAMA 2024; 331:1298-1306. [PMID: 38506839 PMCID: PMC10955354 DOI: 10.1001/jama.2024.0792] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 01/18/2024] [Indexed: 03/21/2024]
Abstract
Importance Finding a reliable diagnostic biomarker for the disorders collectively known as synucleinopathies (Parkinson disease [PD], dementia with Lewy bodies [DLB], multiple system atrophy [MSA], and pure autonomic failure [PAF]) is an urgent unmet need. Immunohistochemical detection of cutaneous phosphorylated α-synuclein may be a sensitive and specific clinical test for the diagnosis of synucleinopathies. Objective To evaluate the positivity rate of cutaneous α-synuclein deposition in patients with PD, DLB, MSA, and PAF. Design, Setting, and Participants This blinded, 30-site, cross-sectional study of academic and community-based neurology practices conducted from February 2021 through March 2023 included patients aged 40 to 99 years with a clinical diagnosis of PD, DLB, MSA, or PAF based on clinical consensus criteria and confirmed by an expert review panel and control participants aged 40 to 99 years with no history of examination findings or symptoms suggestive of a synucleinopathy or neurodegenerative disease. All participants completed detailed neurologic examinations and disease-specific questionnaires and underwent skin biopsy for detection of phosphorylated α-synuclein. An expert review panel blinded to pathologic data determined the final participant diagnosis. Exposure Skin biopsy for detection of phosphorylated α-synuclein. Main Outcomes Rates of detection of cutaneous α-synuclein in patients with PD, MSA, DLB, and PAF and controls without synucleinopathy. Results Of 428 enrolled participants, 343 were included in the primary analysis (mean [SD] age, 69.5 [9.1] years; 175 [51.0%] male); 223 met the consensus criteria for a synucleinopathy and 120 met criteria as controls after expert panel review. The proportions of individuals with cutaneous phosphorylated α-synuclein detected by skin biopsy were 92.7% (89 of 96) with PD, 98.2% (54 of 55) with MSA, 96.0% (48 of 50) with DLB, and 100% (22 of 22) with PAF; 3.3% (4 of 120) of controls had cutaneous phosphorylated α-synuclein detected. Conclusions and Relevance In this cross-sectional study, a high proportion of individuals meeting clinical consensus criteria for PD, DLB, MSA, and PAF had phosphorylated α-synuclein detected by skin biopsy. Further research is needed in unselected clinical populations to externally validate the findings and fully characterize the potential role of skin biopsy detection of phosphorylated α-synuclein in clinical care.
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Affiliation(s)
- Christopher H. Gibbons
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Todd Levine
- HonorHealth Neurology, Scottsdale, Arizona
- CND Life Sciences, Scottsdale, Arizona
| | - Charles Adler
- Department of Neurology, Mayo Clinic College of Medicine, Scottsdale, Arizona
| | | | - Ningshan Wang
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | | | | | - Georgina M. Aldridge
- Department of Neurology, Carver College of Medicine, University of Iowa, Iowa City
| | - Alexandru Barboi
- Department of Neurology, Northshore University Health System, Glenview, Illinois
| | | | - Douglas Galasko
- Department of Neurology, University of California, San Diego
| | | | | | - Ramon Gil
- Parkinson’s Disease Treatment Center of Southwest Florida, Port Charlotte
| | - Mark Gudesblatt
- Department of Neurology, New York University Grossman Long Island School of Medicine, New York
| | - Stuart H. Isaacson
- Parkinson’s Disease and Movement Disorders Center of Boca Raton, Boca Raton, Florida
| | - Horacio Kaufmann
- Department of Neurology, New York University Grossman School of Medicine, New York
| | - Pravin Khemani
- Department of Neurology, Swedish Medical Center, Seattle, Washington
| | - Rajeev Kumar
- Rocky Mountain Movement Disorders Center, Englewood, Colorado
| | | | - Andy J. Liu
- Department of Neurology, Duke University School of Medicine, Durham, North Carolina
| | | | - Mitchell Miglis
- Department of Neurology, Stanford University Medical Center, Palo Alto, California
| | | | | | | | | | - Wolfgang Singer
- Department of Neurology, Mayo Clinic Rochester, Rochester, New York
| | | | - Steven Vernino
- Department of Neurology, The University of Texas Southwestern Medical Center, Dallas
| | - Oleg Yerstein
- Department of Neurology, Lahey Clinic, Burlington, Massachusetts
| | - Roy Freeman
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
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Bergmans B, Clark V, Isaacson SH, Bäumer T. Recommendations for a paradigm shift in approach to increase the recognition and treatment of sialorrhea in Parkinson's disease. Clin Park Relat Disord 2023; 9:100223. [PMID: 38021341 PMCID: PMC10643485 DOI: 10.1016/j.prdoa.2023.100223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 09/29/2023] [Accepted: 10/10/2023] [Indexed: 12/01/2023] Open
Abstract
Sialorrhea, or drooling, is defined as excessive saliva accumulation and unwanted loss of saliva from the mouth or over the tongue and into the pharynx. It constitutes one of the most frequent and bothersome complaints of patients with Parkinson's disease (PD), affecting up to 84% of them. Sialorrhea is a distressing and challenging condition that may result in social isolation, embarrassment, depression, skin infections, poor oral health, and aspiration pneumonia. To better understand the burden of sialorrhea on patients with PD, Parkinson's Europe carried out a worldwide patient survey which showed that sialorrhea remains an underrecognized and undertreated issue in patients with PD. This is especially problematic because effective therapeutic options are available. This article presents the results of the Parkinson's Europe Sialorrhea Survey, which were considered by a multidisciplinary panel of experts to provide recommendations for improving the awareness, diagnosis, management, and treatment of sialorrhea in patients with PD. A shift in the treatment paradigm for sialorrhea in patients with PD is emerging. It is essential to better educate patients, family members, caregivers, and healthcare professionals about sialorrhea; to engage all those involved to actively discuss sialorrhea and measure its impact on quality of life; and to recognize the role of botulinum toxin and speech and language therapy as first-line therapies.
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Affiliation(s)
- Bruno Bergmans
- Department of Neurology, AZ St-Jan Brugge-Oostende AV, Campus Brugge, 8000 Bruges, Belgium
- Department of Neurology, Ghent University Hospital, 9000 Ghent, Belgium
| | - Veronica Clark
- Independent Researcher, Malta Parkinson’s, PO Box 17, Marsa MTP 1001, Malta
- Private Practice, UK
| | - Stuart H. Isaacson
- Parkinson’s Disease and Movement Disorders Center of Boca Raton, 951 NW 13th Street, Bldg. 5-E, Boca Raton, FL 33486, USA
| | - Tobias Bäumer
- Institute of Systems Motor Science, University of Lübeck, CBBM (Building 66), Ratzeburger Allee 160, 23562 Lübeck, Germany
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Hauser RA, Espay AJ, Ellenbogen AL, Fernandez HH, Isaacson SH, LeWitt PA, Ondo WG, Pahwa R, Schwarz J, Stocchi F, Zeitlin L, Banisadr G, Fisher S, Visser H, D’Souza R. IPX203 vs Immediate-Release Carbidopa-Levodopa for the Treatment of Motor Fluctuations in Parkinson Disease: The RISE-PD Randomized Clinical Trial. JAMA Neurol 2023; 80:1062-1069. [PMID: 37578800 PMCID: PMC10425876 DOI: 10.1001/jamaneurol.2023.2679] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 06/07/2023] [Indexed: 08/15/2023]
Abstract
Importance Levodopa has a short half-life and a limited window of opportunity for absorption in the proximal small intestine. IPX203 is an oral, extended-release formulation of carbidopa-levodopa developed to address these limitations. Objective To assess the efficacy and safety of IPX203 vs immediate-release carbidopa-levodopa in patients with Parkinson disease who are experiencing motor fluctuations. Design, Setting, and Participants RISE-PD was a 20-week, randomized, double-blind, double-dummy, active-controlled, phase 3 clinical trial. The study was conducted between November 6, 2018, and June 15, 2021, at 105 academic and clinical centers in the US and Europe. Patients with Parkinson disease taking a total daily dose of 400 mg or more of levodopa and experiencing an average of 2.5 hours or more daily off-time were included in the study. A total of 770 patients were screened, 140 were excluded (those taking controlled-release carbidopa-levodopa apart from a single daily bedtime dose, Rytary (Amneal Pharmaceuticals), additional carbidopa or benserazide, or catechol O-methyl transferase inhibitors or who had a history of psychosis within the past 10 years), and 630 were enrolled in the trial. Interventions Following open-label immediate-release carbidopa-levodopa dose adjustment (3 weeks) and conversion to IPX203 (4 weeks), patients were randomized in a 1:1 ratio to double-blind, double-dummy treatment with immediate-release carbidopa-levodopa or IPX203 for 13 weeks. Main Outcome and Measures The primary end point was mean change in daily good on-time (ie, on-time without troublesome dyskinesia) from baseline to the end of the double-blind treatment period. Results A total of 630 patients (mean [SD] age, 66.5 [8.95] years; 396 [62.9%] men) were enrolled, and 506 patients were randomly assigned to receive IPX203 (n = 256) or immediate-release carbidopa-levodopa (n = 250). The study met its primary end point, demonstrating statistically significant improvement in daily good on-time for IPX203 compared to immediate-release carbidopa-levodopa (least squares mean, 0.53 hours; 95% CI, 0.09-0.97; P = .02), with IPX203 dosed a mean 3 times per day vs 5 times per day for immediate-release carbidopa-levodopa. Good on-time per dose increased by 1.55 hours with IPX203 compared to immediate-release carbidopa-levodopa (95% CI, 1.37-1.73; P < .001). IPX203 was well tolerated. The most common adverse events in the double-blind phase (IPX203 vs immediate-release carbidopa-levodopa) were nausea (4.3% vs 0.8%) and anxiety (2.7% vs 0.0%). Conclusions and Relevance In this study, IPX203 provided more hours of good on-time per day than immediate-release carbidopa-levodopa, even as IPX203 was dosed less frequently. Trial Registration ClinicalTrials.gov Identifier: NCT03670953.
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Affiliation(s)
- Robert A. Hauser
- University of South Florida Parkinson’s Disease and Movement Disorders Center/Parkinson Foundation Center of Excellence, Tampa
| | - Alberto J. Espay
- James J. and Joan A. Gardner Center for Parkinson’s Disease and Movement Disorders, University of Cincinnati, Cincinnati, Ohio
| | - Aaron L. Ellenbogen
- Quest Research Institute/Michigan Institute for Neurological Disorders, Farmington Hills
| | - Hubert H. Fernandez
- Center for Neurological Restoration, Neurological Institute, Cleveland Clinic, Cleveland, Ohio
| | - Stuart H. Isaacson
- Parkinson’s Disease and Movement Disorders Center of Boca Raton, Boca Raton, Florida
| | - Peter A. LeWitt
- Wayne State University School of Medicine and Henry Ford Hospital, Detroit, Michigan
| | - William G. Ondo
- Methodist Hospital and Weill Cornell Medical School, Houston, Texas
| | - Rajesh Pahwa
- University of Kansas Medical Center, Kansas City
| | - Johannes Schwarz
- Geriatric Hospital Haag and Technical University of Munich, Munich, Germany
| | - Fabrizio Stocchi
- Istituto di Ricovero e Cura a Carattere Scientifico San Raffaele Pisana, Department of Neurology, Roma, Italy
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Pahwa R, Isaacson SH, Small GW, Torres-Yaghi Y, Pagan F, Sabbagh M. Correction to: Screening, Diagnosis, and Management of Parkinson's Disease Psychosis: Recommendations From an Expert Panel. Neurol Ther 2023; 12:1803. [PMID: 37410252 PMCID: PMC10444919 DOI: 10.1007/s40120-023-00507-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/07/2023] Open
Affiliation(s)
- Rajesh Pahwa
- Department of Neurology, University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS, 66160, USA.
| | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | - Gary W Small
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, and Semel Institute for Neuroscience and Human Behavior, Los Angeles, CA, USA
| | - Yasar Torres-Yaghi
- Department of Neurology, National Parkinson's Foundation Center for Excellence, Translational Neurotherapeutics Program, Movement Disorders Program, MedStar Georgetown Hospital, Washington, DC, USA
| | - Fernando Pagan
- Department of Neurology, National Parkinson's Foundation Center for Excellence, Translational Neurotherapeutics Program, Movement Disorders Program, MedStar Georgetown Hospital, Washington, DC, USA
| | - Marwan Sabbagh
- Lou Ruvo Center for Brain Health, Cleveland Clinic Nevada, Las Vegas, NV, USA
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Isaacson SH, Kremens D, Torres-Yaghi Y, Stocchi F, Antonini A. Importance of time to ON versus wearing OFF in total daily OFF time experienced by patients with Parkinson's disease. Parkinsonism Relat Disord 2023; 114:105495. [PMID: 37517986 DOI: 10.1016/j.parkreldis.2023.105495] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 04/05/2023] [Revised: 06/14/2023] [Accepted: 06/17/2023] [Indexed: 08/01/2023]
Abstract
Most patients with Parkinson's disease (PD) receiving levodopa (LD)/DOPA decarboxylase inhibitors develop motor fluctuations with an increasing amount of OFF time, negatively impacting patient quality of life. Herein, we review the evidence supporting the substantial, yet underappreciated contribution of delays in time to ON (including delayed ON and no ON) to total daily OFF time. Most clinical studies use patient diaries that do not capture time to ON and wearing OFF separately as related to LD dosing, and consequently, most OFF time has generally been attributed to wearing OFF. Hence, most treatment regimens focus on reducing wearing OFF by changing LD dosing/formulations and/or using "ON-extenders" (eg, catechol-o-methyltransferase inhibitors, monoamine oxidase-B inhibitors, extended-release amantadine, and adenosine A2A receptor antagonists). However, the literature describing approved treatments for PD that has focused on delays in time to ON is sparse and suggests this type of OFF may comprise more than twice the amount of total daily OFF time as wearing OFF. Here, we advocate for the importance of measuring and adequately addressing delays in time to ON and build support for the consistent inclusion of the time to ON measurement in future clinical trials.
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Affiliation(s)
- Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, 951 NW 13th St, Bldg. 5-E, Boca Raton, FL, 33486, USA.
| | - Daniel Kremens
- Department of Neurology, Thomas Jefferson University, 901 Walnut Street, Suite 400, Philadelphia, PA, 19107, USA.
| | - Yasar Torres-Yaghi
- Department of Neurology, MedStar Georgetown University Hospital, 3800 Reservoir Road NW, 7th Floor, PHC Building, Washington, DC, 20007, USA.
| | - Fabrizio Stocchi
- University San Raffaele Rome and Institute for Research and Medical Care IRCCS San Raffaele Pisana, Rome, Italy.
| | - Angelo Antonini
- Parkinson and Movement Disorders Unit, Study Center on Neurodegeneration (CESNE), University of Padua, Padua, Italy.
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Brillman S, Khemani P, Isaacson SH, Pahwa R, Deshpande R, Zraick V, Rajagopal A, Khosla D, Rosenbluth KH. Non-Invasive Transcutaneous Afferent Patterned Stimulation Therapy Offers Action Tremor Relief in Parkinson's Disease. Tremor Other Hyperkinet Mov (N Y) 2023; 13:25. [PMID: 37637850 PMCID: PMC10453948 DOI: 10.5334/tohm.762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 06/14/2023] [Indexed: 08/29/2023] Open
Abstract
Background Many patients with Parkinson's disease (PD) experience action tremor (including postural and kinetic tremors) that impair activities of daily living. Transcutaneous afferent patterned stimulation (TAPS) is a non-invasive neuromodulation therapy that modulates tremorgenic activity at the ventral intermediate nucleus (VIM). Most TAPS evidence evaluated relief of action tremor associated with essential tremor (ET). This study evaluated whether TAPS results in similar relief of action tremor associated with PD. Methods Forty PD patients with action tremors were enrolled in a prospective, single-arm, open-label study with four weeks of unsupervised at-home TAPS sessions in the dominant hand twice daily in between supervised TAPS sessions at two telemedicine appointments. The primary endpoint was change in tremor power as measured by the on-board accelerometer before and immediately after a stimulation session. Additional study endpoints included change in Movement Disorder Society-Sponsored Unified Parkinson's Disease Rating Scale Part III (MDS-UPDRS), change in Bain and Findley Activities of Daily Living (BF-ADL) scale, and clinician and patient global impressions of improvement (CGI-I and PGI-I). Results TAPS reduced tremor power by 64% (54%-79%) (median (interquartile range), p < 0.001), with 79% of patients experiencing at least 50% reduction. When comparing pre-stimulation scores at visit 1 to post-stimulation scores at visit 2, TAPS improved per-task MDS-UPDRS III ratings of postural and kinetic tremors (0.6 ± 0.5, t(34) = 7.05, p < 0.001) and per-task patient-ratings of BF-ADL ADL upper limb motion ratings (0.5 ± 0.5, t(34) = 5.69, p < 0.001). Clinicians reported improvement in 78-83% of patients and 75-80% of patients reported improvement. Adverse events, most commonly skin reaction at the stimulation site, occurred in 18% of patients. Conclusion Objective, clinician-rated, and patient-rated assessments demonstrated that TAPS provided clinically meaningful relief of action tremor in patients with PD.
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Affiliation(s)
- Salima Brillman
- Parkinson’s Disease and Movement Disorders Center of Silicon Valley, Palo Alto, CA, US
| | | | - Stuart H. Isaacson
- Parkinson’s Disease and Movement Disorders of Boca Raton, Boca Raton, FL, US
| | - Rajesh Pahwa
- University of Kansas Medical Center, Kansas City, KS, US
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Isaacson SH, Goldstein M, Pahwa R, Singer C, Klos K, Pucci M, Zhang Y, Crandall D, Koblan KS, Navia B. Ulotaront, a Trace Amine-Associated Receptor 1/Serotonin 5-HT 1A Agonist, in Patients With Parkinson Disease Psychosis: A Pilot Study. Neurol Clin Pract 2023; 13:e200175. [PMID: 37273942 PMCID: PMC10238151 DOI: 10.1212/cpj.0000000000200175] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 04/04/2023] [Indexed: 06/06/2023]
Abstract
Background and Objectives Ulotaront (SEP-363856) is a trace amine-associated receptor 1 agonist with 5-HT1A receptor agonist activity currently in phase 3 clinical development for the treatment of schizophrenia. In this exploratory, flexibly dosed study, ulotaront was evaluated for the treatment of Parkinson disease psychosis (PDP). Methods Patients with PDP requiring antipsychotic therapy were randomized, double-blind to ulotaront (25, 50, or 75 mg/d) or placebo. Mixed Model for Repeated Measures was used to assess change from baseline in the Scale for the Assessment of Positive Symptoms for Parkinson Disease (SAPS-PD) at 6 weeks (primary end point). Results The efficacy analysis sample comprised 38 patients (ulotaront, n = 24; placebo, n = 14). SAPS-PD total scores were numerically reduced in ulotaront-treated vs placebo-treated patients from week 1 to week 6: Least squares mean (95% confidence interval) difference in change from baseline at week 6 was -1.1 (-6.5, 4.3, p = 0.681). PDP symptom complete remission (≥100% improvement [reduction] from baseline in SAPS-PD total score) was observed in 25% of ulotaront-treated vs 0% of placebo-treated patients. SAPS-PD and Neuropsychiatric Inventory hallucinations subscales were numerically reduced vs placebo, and SAPS-PD total scores were reduced in patients with greater cognitive impairment (baseline Mini-Mental State Examination [MMSE] scores ≤24). Ulotaront improved Scales for Outcomes in Parkinson Disease Sleep Scale - Daytime Sleepiness scores (p = 0.022). There was no worsening of Unified Parkinson Disease Rating Scale Part III motor score, MMSE, or vital signs. Adverse events (≥10%) with ulotaront vs placebo included hallucinations (24% vs 14%), confusional state (20% vs 14%), dizziness (16% vs 7%), nausea (12% vs 7%), and falls (12% vs 21%). Discussion In this exploratory pilot study, ulotaront may decrease PDP symptoms without worsening motor function, particularly in patients with cognitive impairment. Trial Registration Information ClinicalTrials.gov identifier: NCT02969369; submitted: November 17, 2016; study start date: December 31, 2016. Classification of Evidence This Class II study was an exploratory pilot study that was underpowered to detect a statistically significant difference between ulotaront and placebo in the treatment of patients with Parkinson disease psychosis without worsening motor function.
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Affiliation(s)
- Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton (SHI), FL; JEM Research Institute (MG), Lake Worth, FL; University of Kansas (RP), Kansas City; University of Miami Health System (CS), FL; The Movement Disorder Clinic of Oklahoma (KK), Tulsa; The Lockwood Group (MP), Stamford, CT; and Sunovion Pharmaceuticals Inc. (YZ, DC, KSK, BN), Marlborough, MA
| | - Mark Goldstein
- Parkinson's Disease and Movement Disorders Center of Boca Raton (SHI), FL; JEM Research Institute (MG), Lake Worth, FL; University of Kansas (RP), Kansas City; University of Miami Health System (CS), FL; The Movement Disorder Clinic of Oklahoma (KK), Tulsa; The Lockwood Group (MP), Stamford, CT; and Sunovion Pharmaceuticals Inc. (YZ, DC, KSK, BN), Marlborough, MA
| | - Rajesh Pahwa
- Parkinson's Disease and Movement Disorders Center of Boca Raton (SHI), FL; JEM Research Institute (MG), Lake Worth, FL; University of Kansas (RP), Kansas City; University of Miami Health System (CS), FL; The Movement Disorder Clinic of Oklahoma (KK), Tulsa; The Lockwood Group (MP), Stamford, CT; and Sunovion Pharmaceuticals Inc. (YZ, DC, KSK, BN), Marlborough, MA
| | - Carlos Singer
- Parkinson's Disease and Movement Disorders Center of Boca Raton (SHI), FL; JEM Research Institute (MG), Lake Worth, FL; University of Kansas (RP), Kansas City; University of Miami Health System (CS), FL; The Movement Disorder Clinic of Oklahoma (KK), Tulsa; The Lockwood Group (MP), Stamford, CT; and Sunovion Pharmaceuticals Inc. (YZ, DC, KSK, BN), Marlborough, MA
| | - Kevin Klos
- Parkinson's Disease and Movement Disorders Center of Boca Raton (SHI), FL; JEM Research Institute (MG), Lake Worth, FL; University of Kansas (RP), Kansas City; University of Miami Health System (CS), FL; The Movement Disorder Clinic of Oklahoma (KK), Tulsa; The Lockwood Group (MP), Stamford, CT; and Sunovion Pharmaceuticals Inc. (YZ, DC, KSK, BN), Marlborough, MA
| | - Michael Pucci
- Parkinson's Disease and Movement Disorders Center of Boca Raton (SHI), FL; JEM Research Institute (MG), Lake Worth, FL; University of Kansas (RP), Kansas City; University of Miami Health System (CS), FL; The Movement Disorder Clinic of Oklahoma (KK), Tulsa; The Lockwood Group (MP), Stamford, CT; and Sunovion Pharmaceuticals Inc. (YZ, DC, KSK, BN), Marlborough, MA
| | - Yi Zhang
- Parkinson's Disease and Movement Disorders Center of Boca Raton (SHI), FL; JEM Research Institute (MG), Lake Worth, FL; University of Kansas (RP), Kansas City; University of Miami Health System (CS), FL; The Movement Disorder Clinic of Oklahoma (KK), Tulsa; The Lockwood Group (MP), Stamford, CT; and Sunovion Pharmaceuticals Inc. (YZ, DC, KSK, BN), Marlborough, MA
| | - David Crandall
- Parkinson's Disease and Movement Disorders Center of Boca Raton (SHI), FL; JEM Research Institute (MG), Lake Worth, FL; University of Kansas (RP), Kansas City; University of Miami Health System (CS), FL; The Movement Disorder Clinic of Oklahoma (KK), Tulsa; The Lockwood Group (MP), Stamford, CT; and Sunovion Pharmaceuticals Inc. (YZ, DC, KSK, BN), Marlborough, MA
| | - Kenneth S Koblan
- Parkinson's Disease and Movement Disorders Center of Boca Raton (SHI), FL; JEM Research Institute (MG), Lake Worth, FL; University of Kansas (RP), Kansas City; University of Miami Health System (CS), FL; The Movement Disorder Clinic of Oklahoma (KK), Tulsa; The Lockwood Group (MP), Stamford, CT; and Sunovion Pharmaceuticals Inc. (YZ, DC, KSK, BN), Marlborough, MA
| | - Bradford Navia
- Parkinson's Disease and Movement Disorders Center of Boca Raton (SHI), FL; JEM Research Institute (MG), Lake Worth, FL; University of Kansas (RP), Kansas City; University of Miami Health System (CS), FL; The Movement Disorder Clinic of Oklahoma (KK), Tulsa; The Lockwood Group (MP), Stamford, CT; and Sunovion Pharmaceuticals Inc. (YZ, DC, KSK, BN), Marlborough, MA
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9
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Isaacson SH, Hauser RA, Pahwa R, Gray D, Duvvuri S. Dopamine agonists in Parkinson's disease: Impact of D1-like or D2-like dopamine receptor subtype selectivity and avenues for future treatment. Clin Park Relat Disord 2023; 9:100212. [PMID: 37497384 PMCID: PMC10366643 DOI: 10.1016/j.prdoa.2023.100212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 06/16/2023] [Accepted: 07/06/2023] [Indexed: 07/28/2023] Open
Abstract
Dopamine agonists (DAs) have demonstrated efficacy for the treatment of Parkinson's disease (PD) but are limited by adverse effects (AEs). DAs can vary considerably in their receptor subtype selectivity and affinity, chemical composition, receptor occupancy, and intrinsic activity on the receptor. Most currently approved DAs for PD treatment primarily target D2/D3 (D2-like) dopamine receptors. However, selective activation of D1/D5 (D1-like) dopamine receptors may enable robust activation of motor function while avoiding AEs related to D2/D3 receptor agonism. Full D1/D5 receptor-selective agonists have been explored in small, early-phase clinical studies, and although their efficacy for motor symptoms was robust, challenges with pharmacokinetics, bioavailability, cardiovascular AEs, and dyskinesia rates similar to levodopa prevented clinical advancement. Generally, repeated dopaminergic stimulation with full DAs is associated with frontostriatal dysfunction and sensitization that may induce plastic changes in the motor system, and neuroadaptations that produce long-term motor and nonmotor complications, respectively. Recent preclinical and clinical studies suggest that a D1/D5 receptor-selective partial agonist may hold promise for providing sustained, predictable, and robust motor control, while reducing risk for motor complications (e.g., levodopa-induced dyskinesia) and nonmotor AEs (e.g., impulse control disorders and excessive daytime sleepiness). Clinical trials are ongoing to evaluate this hypothesis. The potential emerging availability of novel dopamine receptor agonists with selective dopamine receptor pharmacology suggests that the older terminology "dopamine agonist" may need revision to distinguish older-generation D2/D3-selective agonists from D1/D5-selective agonists with distinct efficacy and tolerability characteristics.
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Affiliation(s)
- Stuart H. Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | - Robert A. Hauser
- Parkinson's Disease and Movement Disorders Center, Parkinson Foundation Center of Excellence, University of South Florida, Tampa, FL, USA
| | - Rajesh Pahwa
- Parkinson's Disease and Movement Disorder Center, University of Kansas Medical Center, Kansas City, KS, USA
| | - David Gray
- Vigil Neuroscience, Inc, Watertown, MA, USA
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10
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Isaacson SH, Pahwa R, Brillman S, Lu C, Kent AR. Clinical benefit of transcutaneous afferent patterned stimulation (TAPS) in essential tremor patients with high unmet need: a secondary analysis of TAPS studies. Expert Rev Med Devices 2023; 20:1211-1218. [PMID: 37878352 DOI: 10.1080/17434440.2023.2274604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 10/19/2023] [Indexed: 10/26/2023]
Abstract
BACKGROUND Transcutaneous afferent patterned stimulation (TAPS) is a noninvasive neuromodulation therapy that improves hand tremor in essential tremor (ET) patients. The benefits of TAPS in ET patients with high unmet need (severe tremor, non-responsive to medication, age ≥65 years) and early responders (substantial TAPS tremor improvement in the first month) remains unknown. RESEARCH DESIGN AND METHODS Literature was surveyed for TAPS studies to assess the response in the high unmet need subgroup and early responders. Analyses were performed using previously collected Tremor Research Group Essential Tremor Rating Scale (TETRAS) scores, Bain & Findley activities of daily living (BF-ADL) scores, and tremor power. RESULTS Significant differences in BF-ADL and TETRAS improvement were observed with TAPS over sham for the high unmet need subgroup in a randomized controlled study (P<0.03). During a 3-month open-label study, the high unmet need subgroup and early responders showed significant improvements in BF-ADL, TETRAS, and tremor power (P<0.001). Analysis of previous real-world evidence demonstrated that early responders maintained effectiveness and usage at 3 and 12 months (P<0.001). CONCLUSIONS TAPS showed comparable improvements in ET with high unmet need as reported in the original studies, and greater efficacy in early responders. These findings inform patient selection and the trial process for identifying TAPS responders.
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Affiliation(s)
- Stuart H Isaacson
- Parkinson's Disease and Movement Disorders of Boca Raton, Boca Raton, FL, USA
| | - Rajesh Pahwa
- Department of Neurology, University of Kansas Medical Center, Kansas City, KS, USA
| | - Salima Brillman
- Parkinson's Disease and Movement Disorders Center of Silicon Valley, Palo Alto, CA, USA
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11
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Isaacson SH, Achari M, Bhidayasiri R, Comella C, Farmer JG, Gupta F, Jones S, Kreitzman D, Kremens D, Lewis SJ, Poewe W, Tolosa E, Campos C, Gibbs SN, Broder MS. Expert Consensus on the Use of
On‐Demand
Treatments for
OFF
Episodes in Parkinson's Disease: A Modified Delphi Panel. Mov Disord Clin Pract 2023; 10:652-657. [PMID: 37070052 PMCID: PMC10105118 DOI: 10.1002/mdc3.13690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 12/20/2022] [Accepted: 01/30/2023] [Indexed: 02/10/2023] Open
Abstract
Background On-demand treatments can treat OFF episodes in Parkinson's disease, however, there is limited information regarding when to prescribe them. Objective Develop expert consensus to determine appropriate clinical factors for considering on-demand treatments. Methods Using a RAND/UCLA modified Delphi panel method, a panel developed consensus on the use of on-demand treatments for OFF episodes. Results The panel agreed on-demand treatments were appropriate when OFF episodes were associated with greater functional impact and interfered with basic daily activities. The panel also agreed on-demand treatment may be appropriate for patients with morning akinesia and/or delayed ON of first levodopa dose and >1 type of OFF episode (eg, early morning OFF or wearing OFF regardless of frequency). Conclusions Experts agreed on-demand treatment is appropriate for many patients with OFF episodes. The greater the functional impact of OFF episodes, the more likely experts agreed that on-demand treatment is appropriate to prescribe.
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Affiliation(s)
| | - Madhureeta Achari
- Integrated Neurology PA, Department of Physical Medicine & Rehabilitation University of Texas, McGovern Medical School‐Houston
| | - Roongroj Bhidayasiri
- Chulalongkorn Centre of Excellence for Parkinson's Disease & Related Disorders, Department of Medicine, Faculty of Medicine Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society Bangkok Thailand
- The Academy of Science, The Royal Society of Thailand Bangkok Thailand
| | - Cynthia Comella
- Department of Neurosurgery and Neurological Sciences Rush University Medical Center
| | | | - Fiona Gupta
- Department of Neurology Mount Sinai Medical Center, Mount Sinai Beth Israel Morningside, Sinai West, The Mount Sinai Hospital
| | | | - David Kreitzman
- Parkinson's Disease and Movement Disorders Center of Long Island
| | - Daniel Kremens
- Department of Neurology Sidney Kimmel Medical College at Jefferson University
| | - Simon J.G. Lewis
- Brain and Mind Center, School of Medical Sciences University of Sydney
| | - Werner Poewe
- Department of Neurology Medical University of Innsbruck
| | - Eduardo Tolosa
- Parkinson's Disease Research Program University of Barcelona Spain
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12
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Usnich T, Olmedillas M, Schell N, Paul JJ, Curado F, Skobalj S, Csoti I, Ertan S, Gruber D, Zittel S, Sammler E, Isaacson SH, Kühn AA, Pedrosa DJ, Reetz K, Kasten M, Rolfs A, Bauer P, Skrahina V, Klein C, Brüggemann N. Frequency of non-motor symptoms in Parkinson's disease patients carrying the E326K and T369M GBA risk variants. Parkinsonism Relat Disord 2023; 107:105248. [PMID: 36565535 DOI: 10.1016/j.parkreldis.2022.105248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/11/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Affiliation(s)
- Tatiana Usnich
- Institute of Neurogenetics, University of Lübeck, Germany
| | | | - Nathalie Schell
- Institute of Neurogenetics, University of Lübeck, Germany; Department of Pediatrics, Universitätsmedizin Essen, Germany
| | | | | | | | - Ilona Csoti
- Gertrudis Clinic Biskirchen, Parkinson-Center, Leun, Germany
| | - Sibel Ertan
- Department of Neurology, Koç University School of Medicine, Istanbul, Turkey
| | - Doreen Gruber
- Movement Disorders Clinic, Beelitz-Heilstätten, Germany
| | - Simone Zittel
- University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorder Center of Boca Raton, Boca Raton, USA
| | - Andrea A Kühn
- Department of Neurology, Movement Disorders and Neuromodulation Unit, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - David J Pedrosa
- Department of Neurology, University Hospital Marburg, Marburg, Germany
| | - Kathrin Reetz
- Department of Neurology, University Hospital Aachen, Aachen, Germany
| | - Meike Kasten
- Institute of Neurogenetics, University of Lübeck, Germany; Department of Psychiatry and Psychotherapy, University of Lübeck, Germany
| | - Arndt Rolfs
- CENTOGENE GmbH, Rostock, Germany; University of Rostock, Albrecht Kossel Institute, Rostock, Germany; Arcensus GmbH, Rostock, Germany
| | | | - Volha Skrahina
- CENTOGENE GmbH, Rostock, Germany; Arcensus GmbH, Rostock, Germany
| | | | - Norbert Brüggemann
- Institute of Neurogenetics, University of Lübeck, Germany; Department of Neurology, University of Luebeck, Luebeck, Germany.
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13
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Hauser RA, Ondo WG, Zhang Y, Bowling A, Navia B, Pappert E, Isaacson SH. Dose Optimization of Apomorphine Sublingual Film for OFF Episodes in Parkinson's Disease: Is the Prophylactic Use of an Antiemetic Necessary? J Parkinsons Dis 2023; 13:403-414. [PMID: 36970914 DOI: 10.3233/jpd-223537] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
BACKGROUND Nausea is common upon initiating dopamine agonists in patients with Parkinson's disease (PD); however, pretreatment with an antiemetic is recommended only when initiating apomorphine formulations. OBJECTIVE Evaluate the need for prophylactic antiemetic use during dose optimization of apomorphine sublingual film (SL-APO). METHODS A post hoc analysis of a Phase III study evaluated nausea and vomiting treatment-emergent adverse events in patients with PD who underwent SL-APO dose optimization (10-35 mg; 5-mg increments) to achieve a tolerable FULL ON. Frequencies of nausea and vomiting were described for patients who did versus did not use an antiemetic during dose optimization and by patient subgroups based on extrinsic and intrinsic factors. RESULTS Overall, 43.7% (196/449) of patients did not use an antiemetic during dose optimization; most of these patients (86.2% [169/196]) achieved an effective and tolerable SL-APO dose. In patients who did not use an antiemetic, nausea (12.2% [24/196]) and vomiting (0.5% [1/196]) were uncommon. An antiemetic was used in 56.3% (253/449) of patients, with 17.0% (43/253) and 2.4% (6/253) experiencing nausea and vomiting, respectively. All events of nausea (14.9% [67/449]) and vomiting (1.6% [7/449]) were of mild-to-moderate severity except for 1 event each. Irrespective of antiemetic use, among patients without baseline dopamine agonist use, nausea and vomiting rates were 25.2% (40/159) and 3.8% (6/159); in those already using dopamine agonists, rates were 9.3% (27/290) and 0.3% (1/290). CONCLUSION Prophylactic treatment with an antiemetic is not necessary for most patients who initiate SL-APO for the treatment of OFF episodes in PD.
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Affiliation(s)
| | | | - Yi Zhang
- Sunovion Pharmaceuticals Inc., Marlborough, MA, USA
| | | | | | - Eric Pappert
- Sunovion Pharmaceuticals Inc., Marlborough, MA, USA
- Neurology Associates, San Antonio, TX, USA
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14
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Isaacson SH, Bowling A, Zhang I, Pappert E, Stocchi F. Motor response with apomorphine sublingual film and levodopa in patients with OFF episodes. Neurodegener Dis Manag 2022; 13:75-84. [PMID: 36562349 DOI: 10.2217/nmt-2022-0038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Aim: Evaluate timing of motor improvement with carbidopa/levodopa (CD/LD) and apomorphine sublingual film (SL-APO) in patients with Parkinson's disease and OFF episodes. Methods: A post hoc pooled analysis from two studies assessed Movement Disorder Society Unified Parkinson's Disease Rating Scale Part III (MDS-UPDRS-III) scores and investigator-rated FULL ON. Results: At 15 and 30 min following the prescribed first daily CD/LD dose, mean improvements in MDS-UPDRS-III scores were -6.7 and -16.3, respectively, and FULL ON was achieved by 6.5 and 41.8% of patients. Following an optimized SL-APO dose, mean improvements in MDS-UPDRS-III scores were -13.9 and -22.9, and FULL ON was achieved by 34.7 and 81.0% of patients. Conclusion: Concomitant administration of SL-APO with carbidopa/levodopa may be useful for delayed ON.
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Affiliation(s)
- Stuart H Isaacson
- Parkinson's Disease & Movement Disorders Center of Boca Raton, Boca Raton, FL 33486, USA
| | - Alyssa Bowling
- Sunovion Pharmaceuticals Inc., Marlborough, MA 01752, USA
| | - Ian Zhang
- Sunovion Pharmaceuticals Inc., Marlborough, MA 01752, USA
| | - Eric Pappert
- Sunovion Pharmaceuticals Inc., Marlborough, MA 01752, USA
| | - Fabrizio Stocchi
- Department of Neurology, University & Institute for Research and Medical Care, IRCCS San Raffaele Pisana, Rome, 00163, Italy
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15
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Isaacson SH, Dewey RB, Pahwa R, Kremens DE. How to manage the initiation of apomorphine therapy without antiemetic pretreatment: A review of the literature. Clin Park Relat Disord 2022; 8:100174. [PMID: 36691604 PMCID: PMC9860403 DOI: 10.1016/j.prdoa.2022.100174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 12/01/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Introduction Pretreatment with the antiemetic trimethobenzamide has been recommended practice in the United States (US) to address the risk of nausea and vomiting during initiation of apomorphine treatment. However, trimethobenzamide is no longer being manufactured in the US, and despite the recent update to the US prescribing information, there may be uncertainty regarding how to initiate apomorphine. Methods To better understand why antiemetic pretreatment was recommended and if it is necessary when initiating apomorphine therapy, we performed a literature review of subcutaneous apomorphine therapy initiation with and without antiemetic pretreatment in patients with PD. Results Three studies were identified as providing relevant information on antiemetic prophylaxis with initiation of injectable apomorphine. The first study demonstrated that nausea was significantly more common in patients who received 3-days of trimethobenzamide pretreatment compared with those who did not, while the primary endpoint of second study found no significant effect on the binary incidence of nausea and/or vomiting on Day 1 of apomorphine treatment. In the third study, which used a slow titration scheme for apomorphine, transient nausea was reported in just 23.1% of the antiemetic nonusers. Conclusions Based on the reviewed trials and our clinical experience, we suggest that subcutaneous apomorphine therapy can be initiated using a slow titration scheme without antiemetic pretreatment.
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Affiliation(s)
- Stuart H. Isaacson
- Parkinson’s Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
- Corresponding author at: Parkinson’s Disease and Movement Disorders Center of Boca Raton, 951 NW 13th Street, Bldg. 5-E, Boca Raton, FL 33486, USA.
| | - Richard B. Dewey
- Parkinson’s Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | - Rajesh Pahwa
- University of Kansas Medical Center, Kansas City, KS, USA
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16
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Jackson R, Brams MN, Carlozzi NE, Citrome L, Fritz NE, Hoberg AR, Isaacson SH, Kane JM, Kumar R. Impact-Tardive Dyskinesia (Impact-TD) Scale: A Clinical Tool to Assess the Impact of Tardive Dyskinesia. J Clin Psychiatry 2022; 84. [PMID: 36449471 DOI: 10.4088/jcp.22cs14563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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] [Indexed: 11/25/2022]
Abstract
Objective: Tardive dyskinesia (TD) is a movement disorder that can negatively affect health-related quality of life. However, the impact of TD is not necessarily dependent solely on the objective severity of TD movements. There is currently no easy-to-use, standardized, clinician-rated assessment of the impact of TD on functioning. The aim of this consensus panel was to develop a scale (Impact-TD scale) to assess the impact of TD on patients' daily functioning in practice settings. Participants: Nine health care professionals with expertise in TD and clinical scale development met to discuss how TD negatively impacts the functional activities of patients. Evidence: This panel comprised 7 individuals from a previous panel that developed recommendations on the importance of optimally assessing the functional impact of TD. The previous panel published a narrative literature review that summarized the existing approaches to assess the impact of TD in clinical research and practice. Consensus Process: A modified Delphi process was used to assess agreement on the format and content of the Impact-TD scale. The panel discussed key features of the Impact-TD scale (ie, simplicity, usability, assessment of frequency of impact versus interference/distress). The scale aimed to describe specific consequences of TD symptoms with which patients may have difficulty. Conclusions: Consensus was reached on a list of consequences of TD symptoms that have a functional impact and were categorized in 4 functional domains: social, psychological/psychiatric, physical, and vocational/educational/recreational. The Impact-TD scale offers an easy-to-use clinical scale to measure the functional impact of TD in practice settings.
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Affiliation(s)
- Richard Jackson
- Department of Psychiatry, University of Michigan School of Medicine, Ann Arbor, Michigan.,Corresponding author: Richard Jackson, MD, 4111 Andover Rd, Ste W100, Bloomfield Hills, MI 48302
| | - Matthew N Brams
- Department of Psychiatry & Behavioral Sciences, Baylor College of Medicine, Houston, Texas
| | - Noelle E Carlozzi
- Department of Physical Medicine & Rehabilitation, University of Michigan School of Medicine, Ann Arbor, Michigan
| | - Leslie Citrome
- Department of Psychiatry and Behavioral Sciences, New York Medical College, Valhalla, New York
| | - Nora E Fritz
- Department of Physical Therapy, Wayne State University, Detroit, Michigan
| | | | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, Florida
| | - John M Kane
- Department of Psychiatry, The Zucker Hillside Hospital, Northwell Health, Glen Oaks, New York.,Department of Psychiatry, Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York.,Institute of Behavioral Science, Feinstein Institutes for Medical Research, Manhasset, New York
| | - Rajeev Kumar
- Rocky Mountain Movement Disorders Center, Englewood, Colorado
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17
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Isaacson SH, Betté S, Pahwa R. Istradefylline for OFF Episodes in Parkinson’s Disease: A US Perspective of Common Clinical Scenarios. Degener Neurol Neuromuscul Dis 2022; 12:97-109. [PMID: 35910426 PMCID: PMC9329678 DOI: 10.2147/dnnd.s245197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 04/02/2022] [Accepted: 06/29/2022] [Indexed: 11/23/2022] Open
Abstract
The effective management of OFF episodes remains an important unmet need for patients with Parkinson’s disease (PD) who develop motor complications with long-term levodopa therapy. Istradefylline is a selective adenosine A2A receptor antagonist for the treatment of patients with PD experiencing OFF episodes while on levodopa/decarboxylase inhibitor. Originally approved in Japan, istradefylline was recently approved in the USA. In this article, we provide a specific review of the four clinical studies that the FDA included in the approval of istradefylline in the USA, and discuss common clinical scenarios, based on our experience, where treatment with istradefylline may benefit patients experiencing motor fluctuations.
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Affiliation(s)
- Stuart H Isaacson
- Parkinson’s Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
- Correspondence: Stuart H Isaacson, Parkinson’s Disease and Movement Disorders Center of Boca Raton, 951 NW 13th Street, Bldg. 5-E, Boca Raton, FL, 33486, USA, Tel +1 561-392-1818, Fax +1 561-392-8989, Email
| | - Sagari Betté
- Parkinson’s Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | - Rajesh Pahwa
- University of Kansas Medical Center, Kansas City, KS, USA
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Sabbagh M, Small GW, Isaacson SH, Torres-Yaghi Y, Pagan F, Pahwa R. Unmet needs in the diagnosis and treatment of Parkinson's disease psychosis and dementia-related psychosis. Int J Psychiatry Clin Pract 2022; 27:69-81. [PMID: 35574992 DOI: 10.1080/13651501.2022.2058406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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] [Indexed: 10/18/2022]
Abstract
Dementia due to Parkinson's disease and Alzheimer's disease are associated with behavioural and psychological symptoms, including psychosis. Long-term management presents a challenge for health care providers and caregivers. Symptoms of psychosis include hallucinations and delusions; if untreated, these can lead to institutionalisation, decreased quality of life, and significant patient and caregiver distress. A critical step in the effective management of dementia-related psychosis (DRP) is the identification and diagnosis of affected patients. The lack of a standardised diagnostic approach presents a barrier to treatment and there are no consensus guidelines for DRP. Furthermore, there are no approved therapies for the treatment of DRP. Antipsychotic medications are often prescribed off-label, even though some are associated with an increased risk of adverse events or mortality. We present currently available screening tools and guidelines for the diagnosis and treatment of Parkinson's disease psychosis and DRP in the context of what is needed for effective management of psychosis.KEY POINTSWe present currently available screening tools and guidelines for Parkinson's disease psychosis and dementia-related psychosis, and discuss the unmet need for simple clinical diagnostic tools and treatment guidelines.The identification of psychosis is variable across different settings and specialties, without a unified approach to screening, definition, or diagnosis.Currently used tools for defining and assessing psychosis in a research setting are usually too cumbersome for everyday clinical practice.The development of a standardised set of diagnostic criteria would provide clinicians the opportunity to improve the detection, treatment, and quality of life of patients and their caregivers.
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Affiliation(s)
- Marwan Sabbagh
- Dignity Health/St. Joseph's Hospital and Medical Center, Phoenix, AZ, USA
| | - Gary W Small
- Department of Psychiatry, Hackensack University Medical Center, Behavioral Health Service, Hackensack Meridian Health, Hackensack, NJ, USA
| | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | - Yasar Torres-Yaghi
- Department of Neurology, National Parkinson's Foundation Center for Excellence, Translational Neurotherapeutics Program, Movement Disorders Program, MedStar Georgetown Hospital, Washington, DC, USA
| | - Fernando Pagan
- Department of Neurology, National Parkinson's Foundation Center for Excellence, Translational Neurotherapeutics Program, Movement Disorders Program, MedStar Georgetown Hospital, Washington, DC, USA
| | - Rajesh Pahwa
- Department of Neurology, University of Kansas Medical Center, Kansas City, KS, USA
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Isaacson SH, Citrome L. Hallucinations and delusions associated with Parkinson's disease psychosis: safety of current treatments and future directions. Expert Opin Drug Saf 2022; 21:873-879. [PMID: 35466847 DOI: 10.1080/14740338.2022.2069240] [Citation(s) in RCA: 6] [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] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION : Over half of Parkinson's disease (PD) patients develop psychotic symptoms, and PD psychosis (PDP) is associated with significant distress to patients, caregiver burden, and impairs quality of life. Pharmacological therapy is limited to atypical antipsychotics. AREAS COVERED : This review will summarize efficacy but will focus on the safety of antipsychotics for treating PDP, and in particular the off-target safety issues including cognitive impairment, sleep disturbance, cardiovascular effects, and motor function. EXPERT OPINION : Pimavanserin is the only medication approved in the US for treating PDP, however clozapine is also considered efficacious. Despite lack of substantial evidence for efficacy, quetiapine is commonly used to treat PDP. Despite the effectiveness of pimavanserin and clozapine for treating PDP, a need exists for additional pharmacological agents that are effective for PDP while providing an acceptable safety and tolerability profile. Medications to treat PDP should avoid worsening motor function, and also minimize sleep disturbances, cognitive impairment, cardiovascular effects, and other non-motor safety concerns. A neutral effect or reduction in mortality risk associated with PD and PDP would be ideal, and low rate of discontinuation due to AEs is desirable. Lastly, medications that can be used safely in combination with other pharmacological agents is essential.
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Affiliation(s)
- Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, Florida, USA
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Ghourchian S, Torres-Yaghi YA, Isaacson SH, Pagan F, Lyons KE, Nagle BJ, Patel S, Pahwa R. Movement Disorder Specialists Survey Regarding Use of Telemedicine During the COVID-19 Pandemic. Telemed J E Health 2022; 28:1651-1657. [PMID: 35297666 DOI: 10.1089/tmj.2021.0474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Aim: To assess the overall satisfaction level of movement disorder specialists using a virtual platform during the COVID-19 pandemic. Methods: This was a multicenter cross-sectional survey for a 6-month period during the beginning of the COVID-19 pandemic. Movement disorder specialists, who utilized telehealth visits from March 2020 to August 2020, were included. The study surveys, including provider's satisfaction with the care that they were able to provide and visit quality, were completed by the provider after each visit. Results: A total of 206 visits, provided by movement disorder specialists, were analyzed. Zoom was the most popular platform used for remote visits (70, 34%). A backup platform was not needed in the majority of movement disorder visits (171, 83%). The majority of physicians were very satisfied or satisfied with the care provided (72.9%) and visit quality (61%). Conclusions: The satisfaction level of specialists using telemedicine during COVID-19 was high despite having encounters with elderly patients with cognitive impairment or lacking advanced skills with technology.
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Affiliation(s)
- Shadi Ghourchian
- Department of Neurology, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Yasar A Torres-Yaghi
- Department of Neurology, Georgetown University Hospital, Washington, District of Columbia, USA
| | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorder Center of Boca Raton, Boca Raton, Florida, USA
| | - Fernando Pagan
- Department of Neurology, Georgetown University Hospital, Washington, District of Columbia, USA
| | - Kelly E Lyons
- Department of Neurology, Parkinson's Disease and Movement Disorder Center, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Brian James Nagle
- Department of Neurology, Georgetown University Hospital, Washington, District of Columbia, USA
| | - Sanskruti Patel
- Department of Neurology, Georgetown University Hospital, Washington, District of Columbia, USA
| | - Rajesh Pahwa
- Department of Neurology, Parkinson's Disease and Movement Disorder Center, University of Kansas Medical Center, Kansas City, Kansas, USA
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Pahwa R, Aldred J, Gupta N, Terasawa E, Garcia-Horton V, Steffen DR, Kandukuri PL, Chaudhari VS, Jalundhwala YJ, Bao Y, Kukreja P, Isaacson SH. Patterns of Daily Motor-Symptom Control with Carbidopa/Levodopa Enteral Suspension Versus Oral Carbidopa/Levodopa Therapy in Advanced Parkinson's Disease: Clinical Trial Post Hoc Analyses. Neurol Ther 2022; 11:711-723. [PMID: 35192177 PMCID: PMC9095782 DOI: 10.1007/s40120-022-00332-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 01/26/2022] [Indexed: 11/30/2022] Open
Abstract
Introduction A clinical trial in advanced Parkinson’s disease (APD) has established the superiority of carbidopa/levodopa enteral suspension (CLES) in reducing total patient “off” time (OFF) and increasing total “on” time without troublesome dyskinesia (ON-woTD) over orally administered immediate-release carbidopa/levodopa tablets (IR–CL). However, temporal patterns of these improvements throughout the waking day have not been examined. In this analysis, time to ON-woTD after waking and patterns of motor-symptom control throughout the waking day were compared between CLES and IR–CL. Methods Post hoc analyses of APD patient-diary data from the phase 3 randomized controlled trial were used to compare changes in time to ON-woTD after waking, motor-symptom control throughout the waking day, occurrence of extreme fluctuations between OFF and “on” with troublesome dyskinesia, and motor-state transitions with CLES versus IR–CL from baseline to week 12. Results The sample included 33 CLES-treated and 30 IR–CL-treated patients. Among the CLES group, the percentage of patient days achieving ON-woTD within 30 min of waking was three times higher at week 12 versus baseline (33% vs. 11%, p = 0.0043); no significant change occurred with IR–CL. When the waking day was divided into four 4-h periods, CLES versus IR–CL treatment produced significantly greater reductions in OFF during three periods, and two periods had increased ON-woTD. Fewer CLES-treated patients had extreme fluctuations at week 12 (3% vs. 23%, p = 0.0224) compared to IR–CL-treated patients. From baseline to week 12, CLES-treated patients had greater reductions in the average number of motor-state transitions compared to IR–CL-treated patients (− 1.6, p = 0.0295). Conclusion CLES-treated patients experienced a more rapid onset of ON-woTD after waking and greater consistency of ON-woTD throughout their waking day than IR–CL-treated patients. Supplementary Information The online version contains supplementary material available at 10.1007/s40120-022-00332-0. In advanced Parkinson’s disease, patients’ motor-symptom states (such as “on” time without troublesome dyskinesia [good “on” time] and “off” time), and the timing at which they occur, can impact patients’ quality of life and ability to complete activities of daily living. Carbidopa/levodopa enteral suspension is administered continuously into the jejunum, potentially reducing some of the motor-state variation that is common with orally administered carbidopa/levodopa, including delayed “on” time after waking and transitions between “off” and “on” throughout the day. In post hoc analyses of clinical trial data, patterns of motor-states across the waking day were compared between carbidopa/levodopa enteral suspension and orally administered immediate-release carbidopa/levodopa at week 12. Outcomes included time to good “on” after waking; occurrence of extreme fluctuations between “off” time and “on” time with troublesome dyskinesia; time in each motor-state during 4-h intervals across the day; and frequency of motor-state transitions. Three times as many carbidopa/levodopa enteral suspension-treated patients achieved good “on” within 30 min of waking after 12 weeks versus baseline, whereas no significant change was observed for the orally administered immediate-release carbidopa/levodopa group. Compared to orally administered immediate-release carbidopa/levodopa-treated patients, fewer carbidopa/levodopa enteral suspension-treated patients experienced extreme fluctuations, had greater reductions in motor-state transitions, and greater reductions in duration of “off” during three of the four intervals in the day. These findings provide a first look at the impact of carbidopa/levodopa enteral suspension on motor-state patterns throughout the day, and suggest that carbidopa/levodopa enteral suspension provides more consistent motor-symptom control and predictable benefit throughout the day than orally administered carbidopa/levodopa.
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Affiliation(s)
- Rajesh Pahwa
- University of Kansas Medical Center, 3901 Rainbow Boulevard, Kansas City, KS, 66160, USA.
| | | | | | | | | | | | | | | | | | | | | | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center, Boca Raton, FL, USA
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Hauser RA, Favit A, Hewitt LA, Lindsten A, Gorny S, Kymes S, Isaacson SH. Durability of the Clinical Benefit of Droxidopa for Neurogenic Orthostatic Hypotension During 12 Weeks of Open-Label Treatment. Neurol Ther 2022; 11:459-469. [PMID: 35107750 PMCID: PMC8857381 DOI: 10.1007/s40120-021-00317-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 12/21/2021] [Indexed: 11/14/2022] Open
Abstract
Introduction Droxidopa is approved to treat neurogenic orthostatic hypotension (nOH) symptoms in patients with autonomic failure based on short-term clinical trial data. Additional data on the long-term efficacy of droxidopa are needed. We have evaluated the 12-week efficacy and tolerability of droxidopa in patients with nOH in an open-label period of an ongoing phase 4 study . Methods Patients received 12 weeks of open-label treatment with an individually optimized droxidopa dose (100–600 mg, 3 times daily) as identified during a preceding titration period. Patient-reported outcomes included the Orthostatic Hypotension Symptom Assessment (OHSA), Orthostatic Hypotension Daily Activity Scale (OHDAS), and clinician- and patient-rated Clinical Global Impression–Severity (CGI-S) scales. Supine blood pressure (BP) and adverse events (AEs) were recorded. Results Data from 114 patients enrolled into the 12-week open-label period were available for analyses. After 12 weeks of droxidopa treatment, patients reported significant (P < 0.0001) improvements from baseline in OHSA and OHDAS composite and individual item scores and on clinician and patient CGI-S scores. Mean ± SD supine systolic and diastolic BP at week 12 increased by 15.5 ± 22.9 and 7.8 ± 11.7 mmHg from baseline, respectively (P < 0.0001 for both). The most frequently reported AEs were falls (17%), headache (13%), and dizziness (9%); one (0.9%) patient reported an AE of supine hypertension. Conclusion During 12 weeks of open-label treatment, droxidopa was associated with significant improvement from baseline in nOH symptoms and activities of daily living. No clinically important changes in supine hypertension or AEs of concern were observed. These results support the efficacy of droxidopa beyond 2 weeks of treatment. Trial Registration NCT02586623. Supplementary Information The online version contains supplementary material available at 10.1007/s40120-021-00317-5.
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Affiliation(s)
- Robert A Hauser
- Parkinson Foundation Center of Excellence, University of South Florida Parkinson's Disease and Movement Disorders Center, 4001 E Fletcher Avenue, Tampa, FL, 33613, USA.
| | | | | | | | | | | | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, 33486, USA
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Rascol O, Tönges L, deVries T, Jaros M, Quartel A, Jacobs D, Azulay JP, Balaguer E, Bhatia P, Bodis-Wollner I, Brownstone P, Boulloche N, Calegan GJ, Castelnovo G, Chou KL, Corvol JC, Danisi F, Defebvre L, Desojo LV, Durif F, Ehret R, Evans BK, Forchetti C, Friedman JH, Fogel W, Garniga MC, Gil RA, Ginsberg PL, Glasberg MR, Griffith A, Groves JW, Gudesblatt M, Hermanowicz N, Herrera MA, Houeto JL, Hutchman RM, Isaacson SH, Jagadeesan S, Jog M, Keegan A, Klostermann F, Krystkowiak P, Kulisevsky Bojarsky J, Kumar R, Lacey D, Lasker B, LaVaccare J, Lavallee MM, Piudo MRL, Mahler A, Domenech MJM, Martinez Castrillo JC, Mate LJ, Mendis T, Metman LV, Muhlack SM, Müller T, Park A, Patton J, Peckham E, Grandas Pérez F, Rabin M, Rascol O, Reifschneider G, Remy P, Rivera PM, Schwarz J, Roullet-Solignac I, Salazar G, Sergay SM, Sherman S, Shubin R, Spikol L, Steigerwald F, Tönges L, Truong DD, Ugarte A, Vivancos Matellano F, Witte A, Zesiewicz T, Zauber SE. Immediate-release/extended-release amantadine (OS320) to treat Parkinson's disease with levodopa-induced dyskinesia: Analysis of the randomized, controlled ALLAY-LID studies. Parkinsonism Relat Disord 2022; 96:65-73. [DOI: 10.1016/j.parkreldis.2022.01.022] [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] [Received: 09/30/2021] [Revised: 01/24/2022] [Accepted: 01/27/2022] [Indexed: 10/19/2022]
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Antonini A, Pahwa R, Odin P, Henriksen T, Soileau MJ, Rodriguez-Cruz R, Isaacson SH, Merola A, Lindvall S, Domingos J, Alobaidi A, Jalundhwala YJ, Kandukuri PL, Parra JC, Kukreja PK, Onuk K, Bergmann L, Pike J, Ray Chaudhuri K. Psychometric Properties of Clinical Indicators for Identification and Management of Advanced Parkinson's Disease: Real-World Evidence From G7 Countries. Neurol Ther 2022; 11:303-318. [PMID: 35015215 PMCID: PMC8857339 DOI: 10.1007/s40120-021-00313-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 12/08/2021] [Indexed: 11/24/2022] Open
Abstract
Introduction Standardized and validated criteria to define advanced Parkinson’s disease (PD) or identify patient eligibility for device-aided therapy are needed. This study assessed the psychometric properties of clinical indicators of advanced PD and eligibility for device-aided therapy in a large population. Methods This retrospective analysis of the Adelphi Parkinson’s Disease Specific Programme collected data from device-aided therapy-naïve people with PD in G7 countries. We assessed the presence of 15 clinical indicators of advancing PD and seven indicators of eligibility for device-aided therapy in patients classified with advanced PD or as eligible for device-aided therapy by the treating physician. Accuracy was assessed using area under the curve (AUC) and multivariable logistic regression models. Construct validity was examined via known-group comparisons of disease severity and burden among patients with and without each clinical indicator. Results Of 4714 PD patients, 14.9% were classified with advanced PD and 17.5% as eligible for device-aided therapy by physician judgment. The presence of each clinical indicator was 1.9- to 7.3-fold more likely in patients classified with advanced PD. Similarly, the presence of device-aided therapy eligibility indicators was 1.8- to 5.5-fold more likely in patients considered eligible for device-aided therapy. All indicators demonstrated high clinical screening accuracy for identifying advanced PD (AUC range 0.84–0.89) and patients eligible for device-aided therapy (AUC range 0.73–0.80). The Unified Parkinson’s Disease Rating Scale (UPDRS) score, cognitive function, quality of life, and caregiver burden were significantly worse in indicator-positive patients. Conclusion Specific clinical indicators of advanced PD and eligibility for device-aided therapy demonstrated excellent psychometric properties in a large sample, and thus may provide an objective and reliable approach for patient identification and treatment optimization. Supplementary Information The online version contains supplementary material available at 10.1007/s40120-021-00313-9. Advanced Parkinson’s disease (PD) refers to the stage of disease when motor complications are difficult to manage with standard therapy. Patients reaching this stage of the disease may benefit from a treatment change from pills to the so-called device-aided therapies. However, there is currently no unanimous definition of advanced PD, which makes it challenging to identify suitable candidates for device-aided therapies. There is urgent need to define specific features (or ‘clinical indicators’) to support healthcare professionals and patients in the identification of advanced PD as well as to define suitability for device-aided therapy. This study aimed to assess the accuracy of 15 clinical indicators and seven device-aided therapy eligibility criteria using information from a large database of 4714 patients in G7 countries. Physicians classified 14.9% of patients as having advanced PD and 17.5% were judged to be eligible for device-aided therapy. Each clinical indicator or device-aided therapy eligibility indicator was detected more frequently in patients classified as having advanced PD and in patients considered eligible for device-aided therapy, respectively. All indicators had high accuracy for identifying advanced PD and device-aided therapy-eligibility. These previously identified clinical indicators of advanced PD and device-aided therapy eligibility may provide an objective and reliable approach for patient screening and treatment optimization.
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Affiliation(s)
- Angelo Antonini
- Parkinson and Movement Disorders Unit, Study Centre for Neurodegeneration, Department of Neuroscience, University of Padova, Padova, Italy
| | - Rajesh Pahwa
- Medical Center, University of Kansas, Kansas, KS, USA
| | - Per Odin
- University of Lund, Lund, Sweden
| | - Tove Henriksen
- Movement Disorder Clinic, University Hospital of Bispebjerg, Copenhagen, Denmark
| | | | | | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center, Boca Raton, FL, USA
| | - Aristide Merola
- Madden Center for Parkinson Disease and Other Movement Disorders, Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | | | - Josefa Domingos
- European Parkinson's Disease Association, Sevenoaks, UK.,Grupo de Patologia Médica, Nutrição e Exercício Clínico (PaMNEC) do CiiEM, Almada, Portugal
| | - Ali Alobaidi
- AbbVie Inc., North Chicago, IL, USA.,University of Illinois at Chicago, Chicago, IL, USA
| | | | | | | | | | | | | | - James Pike
- Adelphi Real World, Adelphi Mill, Bollington, UK
| | - K Ray Chaudhuri
- King's College and Parkinson Foundation Centre of Excellence, Kings College Hospital London, London, UK.
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Comella C, Hauser RA, Isaacson SH, Truong D, Oguh O, Hui J, Molho ES, Brodsky M, Furr-Stimming E, Comes G, Hast MA, Charles D. Efficacy and safety of two incobotulinumtoxinA injection intervals in cervical dystonia patients with inadequate benefit from standard injection intervals of botulinum toxin: Phase 4, open-label, randomized, noninferiority study. Clin Park Relat Disord 2022; 6:100142. [PMID: 35330880 PMCID: PMC8938329 DOI: 10.1016/j.prdoa.2022.100142] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 03/11/2022] [Indexed: 12/01/2022] Open
Abstract
Botulinum toxin treatment benefit for CD can wane before typical reinjection cycle. Shorter injection cycles of incobotulinumtoxinA are effective for treating CD. Shorter injection intervals have no unexpected AEs or loss of treatment effect.
Introduction Some patients with cervical dystonia (CD) receiving long-term botulinum neurotoxin (BoNT) therapy report early waning of treatment benefit before the typical 12-week reinjection interval. Methods This phase 4, open-label, randomized, noninferiority study (CD Flex; NCT01486264) compared 2 incobotulinumtoxinA injection schedules (Short Flex: 8 ± 2 weeks; Long Flex: 14 ± 2 weeks) in CD patients. Previous BoNT-responsive subjects who reported acceptable clinical benefit lasting < 10 weeks were recruited. Efficacy and safety were evaluated after 8 injection cycles. The primary endpoint was change in Toronto Western Spasmodic Torticollis Rating Scale (TWSTRS) severity subscale 4 weeks after the eighth injection. Secondary endpoints included TWSTRS total and subscale scores. Immunogenicity was assessed in a subset of patients. Results Two hundred eighty-two CD patients were randomized and treated (Short Flex, N = 142; Long Flex, N = 140), and 207 completed the study. Significant improvements in TWSTRS severity from study baseline to 4 weeks after cycle 8 were observed in both the Short Flex (4.1 points; P < 0.0001) and Long Flex (2.4 points; P = 0.002) groups; Short Flex was noninferior to Long Flex (LS mean difference = 1.4 points; 95% CI = [−2.9, 0.1] < Δ = 2.0). Key secondary endpoints favored Short Flex intervals. Adverse events (AEs) were comparable between groups. There was no secondary loss of treatment effect. Conclusion Injection cycles < 10 weeks for incobotulinumtoxinA are effective (and noninferior to longer intervals) for treating CD patients with early waning of clinical benefit. Shorter injection intervals did not increase AEs or lead to loss of treatment effect.
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Isaacson SH, Pagan FL, Lew MF, Pahwa R. Should “on-demand” treatments for Parkinson’s disease OFF episodes be used earlier? Clin Park Relat Disord 2022; 7:100161. [PMID: 36033905 PMCID: PMC9405081 DOI: 10.1016/j.prdoa.2022.100161] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 07/18/2022] [Accepted: 08/04/2022] [Indexed: 02/07/2023] Open
Abstract
OFF episodes are common in patients as Parkinson’s disease progresses. OFF episodes are typically managed with “ON-extenders” and changes in levodopa dosing. OFF episodes persist despite conventional treatment. “On-demand” therapies can rapidly improve OFF symptoms. A shift to earlier complementary use of “on-demand” therapies should be considered.
We discuss a shift in the treatment paradigm for OFF episode management in patients with Parkinson’s disease, based on clinical experience in the United States (US). Three “on-demand” treatments are currently available in the US as follows: subcutaneous apomorphine, levodopa inhalation powder, and sublingual apomorphine. We empirically propose that “on-demand” treatments can be utilized as a complementary treatment when OFF episodes emerge and can be utilized when needed rather than reserving these treatments only until other treatment approaches (adjustment of baseline treatment and/or addition of adjunctive treatment with “ON-extenders”) have failed. Current treatment approaches combine “ON-extenders” with increasing levodopa dosing and/or frequency to treat OFF episodes. Yet, OFF episodes often persist, with a substantial amount of daily OFF time. OFF episode treatment is hindered by variable gastrointestinal (GI) absorption of oral levodopa, reflecting GI dysmotility and protein competition. Novel “on-demand” treatments bypass the gut and can improve OFF symptoms more rapidly and reliably than oral levodopa. With the emergence of novel “on-demand” treatments, we conclude that a shift in treatment paradigm to the earlier, complementary use of these medications be considered.
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Antonini A, Pahwa R, Odin P, Isaacson SH, Merola A, Wang L, Kandukuri PL, Alobaidi A, Yan CH, Bao Y, Zadikoff C, Parra JC, Bergmann L, Chaudhuri KR. Comparative Effectiveness of Device-Aided Therapies on Quality of Life and Off-Time in Advanced Parkinson's Disease: A Systematic Review and Bayesian Network Meta-analysis. CNS Drugs 2022; 36:1269-1283. [PMID: 36414908 PMCID: PMC9712309 DOI: 10.1007/s40263-022-00963-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [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: 09/29/2022] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Research comparing levodopa/carbidopa intestinal gel (LCIG), deep brain stimulation (DBS), and continuous subcutaneous apomorphine infusion (CSAI) for advanced Parkinson's disease (PD) is lacking. This network meta-analysis (NMA) assessed the comparative effectiveness of LCIG, DBS, CSAI and best medical therapy (BMT) in reducing off-time and improving quality of life (QoL) in patients with advanced PD. METHODS A systematic literature review was conducted for randomized controlled trials (RCTs), observational and interventional studies from January 2003 to September 2019. Data extracted at baseline and 6 months were off-time, as reported by diary or Unified Parkinson's Disease Rating Scale Part IV item 39, and QoL, as reported by Parkinson's Disease Questionnaire (PDQ-39/PDQ-8). Bayesian NMA was performed to estimate pooled treatment effect sizes and to rank treatments in order of effectiveness. RESULTS A total of 22 studies fulfilled the inclusion criteria (n = 2063 patients): four RCTs, and 16 single-armed, one 2-armed and one 3-armed prospective studies. Baseline mean age was between 55.5-70.9 years, duration of PD was 9.1-15.3 years, off-time ranged from 5.4 to 8.7 h/day in 9 studies, and PDQ scores ranged from 28.8 to 67.0 in 19 studies. Levodopa/carbidopa intestinal gel and DBS demonstrated significantly greater improvement in off-time and QoL at 6 months compared with CSAI and BMT (p < 0.05). There was no significant difference in the effects of LCIG and DBS, but DBS was ranked first for reduction in off-time, and LCIG was ranked first for improvement in QoL. CONCLUSIONS This NMA found that LCIG and DBS were associated with superior improvement in off-time and PD-related QoL compared with CSAI and BMT at 6 months after treatment initiation. This comparative effectiveness research may assist providers, patients, and caregivers in the selection of the optimal device-aided therapy.
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Affiliation(s)
- Angelo Antonini
- Parkinson and Movement Disorders Unit, Department of Neuroscience, Study Center for Neurodegeneration (CESNE), University of Padova, 35128, Padua, Italy.
| | - Rajesh Pahwa
- Medical Center, University of Kansas, Kansas City, KS USA
| | - Per Odin
- University of Lund, Lund, Sweden
| | | | - Aristide Merola
- Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH USA
| | - Lin Wang
- AbbVie Inc., North Chicago, IL USA ,Johns Hopkins School of Public Health, Baltimore, MD USA
| | | | - Ali Alobaidi
- AbbVie Inc., North Chicago, IL USA ,University of Illinois at Chicago, Chicago, IL USA
| | - Connie H. Yan
- AbbVie Inc., North Chicago, IL USA ,University of Illinois at Chicago, Chicago, IL USA
| | | | | | | | | | - K. Ray Chaudhuri
- King’s College and Parkinson Foundation Centre of Excellence, Kings College Hospital London, London, UK
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Peterschmitt MJ, Saiki H, Hatano T, Gasser T, Isaacson SH, Gaemers SJM, Minini P, Saubadu S, Sharma J, Walbillic S, Alcalay RN, Cutter G, Hattori N, Höglinger GU, Marek K, Schapira AHV, Scherzer CR, Simuni T, Giladi N, Sardi SP, Fischer TZ. Safety, Pharmacokinetics, and Pharmacodynamics of Oral Venglustat in Patients with Parkinson's Disease and a GBA Mutation: Results from Part 1 of the Randomized, Double-Blinded, Placebo-Controlled MOVES-PD Trial. J Parkinsons Dis 2021; 12:557-570. [PMID: 34897099 PMCID: PMC8925113 DOI: 10.3233/jpd-212714] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Background: Glucocerebrosidase gene (GBA) mutations influence risk and prognosis of Parkinson’s disease (PD), possibly through accumulation of glycosphingolipids, including glucosylceramide (GL-1). Venglustat is a novel, brain penetrant glucosylceramide synthase inhibitor. Objective: Evaluate venglustat pharmacology, safety, and tolerability in patients with PD and GBA mutations (GBA-PD). Methods: Part 1 of the phase 2 MOVES-PD trial (NCT02906020) was a randomized, double-blinded, placebo-controlled, dose-escalation study performed in six countries. Eligible participants included Japanese and non-Japanese patients aged 18–80 years with PD diagnosis and heterozygous GBA mutation. Participants were randomized to three doses of once-daily oral venglustat or placebo and were followed up to 36 weeks (Japanese participants: 52 weeks). Primary endpoint was venglustat safety and tolerability versus placebo. Secondary and exploratory endpoints included venglustat pharmacokinetics and pharmacodynamics. Results: Participants (N = 29) received venglustat (Japanese, n = 9; non-Japanese, n = 13) or placebo (n = 3; n = 4). Eight (89%) Japanese and 12 (92%) non-Japanese venglustat-treated participants experienced at least one adverse event (AE) versus two (67%) and four (100%) participants from the respective placebo groups. Most AEs were mild or moderate; no serious AEs or deaths occurred. Two venglustat-treated non-Japanese participants discontinued due to AEs (confusional state and panic attack). Over 4 weeks, venglustat exposure in plasma and cerebrospinal fluid (CSF) increased, and GL-1 levels in plasma and CSF decreased, both in a dose-dependent manner. At the highest dose, CSF GL-1 decreased by 72.0% in Japanese and 74.3% in non-Japanese participants. Conclusion: Venglustat showed favorable safety and tolerability in MOVES-PD Part 1 and target engagement was achieved in CSF.
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Affiliation(s)
| | - Hidemoto Saiki
- Kitano Hospital, The Tazuke Kofukai Medical Research Institute, Osaka, Japan
| | | | - Thomas Gasser
- Neurologische Universitätsklinik, Tübingen, Germany; German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
| | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center, Boca Raton, FL, USA
| | | | | | | | | | | | - Roy N Alcalay
- Department of Neurology and the Taub Institute, Columbia University Medical Center, New York, NY, USA
| | - Gary Cutter
- University of Alabama at Birmingham, School of Public Health, Birmingham, AL, USA
| | | | - Günter U Höglinger
- German Center for Neurodegenerative Diseases (DZNE), Munich, and Department of Neurology, Klinikum Rechts der Isar, Technical University Munich, Munich, Germany.,Department of Neurology, Hannover Medical School, Hannover, Germany
| | - Kenneth Marek
- Institute for Neurodegenerative Disorders, New Haven, CT, USA
| | - Anthony H V Schapira
- Department of Clinical and Movement Neurosciences, UCL Queen Square Institute of Neurology, University College London, London, UK
| | | | | | - Nir Giladi
- Neurological Institute, Tel Aviv Medical Center, Sackler School of Medicine, Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
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Lew MF, Hauser RA, Isaacson SH, Truong D, Patel AT, Brashear A, Ondo W, Maisonobe P, Dashtipour K, Bahroo L, Wietek S. AbobotulinumtoxinA provides flexibility for the treatment of cervical dystonia with 500 U/1 mL and 500 U/2 mL dilutions. Clin Park Relat Disord 2021; 5:100115. [PMID: 34888518 PMCID: PMC8636802 DOI: 10.1016/j.prdoa.2021.100115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 10/27/2021] [Accepted: 10/29/2021] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION Cervical dystonia (CD) is a neurologic movement disorder with potentially disabling effects and significant impact on quality of life of those affected. AbobotulinumtoxinA (aboBoNT-A) was initially approved for a dilution of 500 U/1 mL and subsequently for a dilution of 500 U/2 mL, providing flexibility for clinicians to treat CD. Here, we explore the safety and efficacy of the 500 U/2 mL dilution versus 500 U/1 mL dilution of aboBoNT-A in a retrospective analysis based on published clinical trial data. METHODS The safety and efficacy of aboBoNT-A in patients with CD was evaluated in three multicenter, double-blind, randomized, placebo-controlled trials and open-label extensions. Trials 1 (NCT00257660) and 2 (NCT00288509) evaluated the 500 U/1 mL dilution in 80 and 116 patients, respectively; Trial 3 (NCT01753310) evaluated the 500 U/2 mL dilution in 125 patients. RESULTS Comparison of the adjusted mean difference in TWSTRS total scores at Week 4 from baseline for aboBoNT-A in Trial 1 (-6.0; 95% CI, -10.8, -1.3), Trial 2 (-8.8; 95% CI, -12.9, -4.7), and Trial 3 (-8.7; 95% CI, -13.2, -4.2) showed similar, significant improvements. Dysphagia and muscle weakness patterns were comparable across the three trials, indicating that an increased dilution of aboBoNT-A does not result in an increased risk of diffusion-related adverse events. CONCLUSION The results of these trials show that aboBoNT-A is similarly efficacious using either dilution, with similar safety and tolerability across trials. Having the 500 U/1 mL and 500 U/2 mL dilution volumes available provides further flexibility in administration, benefiting patient care.
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Affiliation(s)
- Mark F. Lew
- Department of Neurology, Keck/University of Southern California School of Medicine, Los Angeles, CA 90033, USA
| | - Robert A. Hauser
- University of South Florida, Parkinson’s Disease and Movement Disorders Center of Excellence, Tampa, FL 33613, USA
| | - Stuart H. Isaacson
- Parkinson’s Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL 33486, USA
| | - Daniel Truong
- The Parkinson and Movement Disorder Institute, Fountain Valley, CA 92708, USA
| | - Atul T. Patel
- Kansas City Bone and Joint Clinic, Overland Park, KS 66211, USA
| | - Allison Brashear
- Department of Neurology, University of California, Davis, Sacramento, CA 95816, USA
| | - William Ondo
- Methodist Neurological Institute, Houston, TX 77030, USA
| | | | - Khashayar Dashtipour
- Department of Neurology/Movement Disorders, Loma Linda University, Loma Linda, CA 92354, USA
| | - Laxman Bahroo
- Georgetown University Hospital, Pasquerilla Healthcare Center, Washington, DC 20007, USA
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Poewe W, Stocchi F, Arkadir D, Ebersbach G, Ellenbogen AL, Giladi N, Isaacson SH, Kieburtz K, LeWitt P, Olanow CW, Simuni T, Thomas A, Zlotogorski A, Adar L, Case R, Oren S, Fuchs Orenbach S, Rosenfeld O, Sasson N, Yardeni T, Espay AJ. Subcutaneous Levodopa Infusion for Parkinson's Disease: 1-Year Data from the Open-Label BeyoND Study. Mov Disord 2021; 36:2687-2692. [PMID: 34496081 PMCID: PMC9291977 DOI: 10.1002/mds.28758] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 06/17/2021] [Accepted: 07/26/2021] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Continuous, subcutaneous (SC) levodopa/carbidopa infusion with ND0612 is under development as a treatment for patients with Parkinson's disease (PD) and motor fluctuations. OBJECTIVE Evaluate 1-year safety data. METHODS BeyoND is an open-label study evaluating the long-term safety of two ND0612 dosing regimens. RESULTS Of the 214 enrolled patients (24-hour SC infusion: n = 90; 16-hour SC infusion: n = 124), 120 (56%) completed 12 months of treatment. Leading causes for study discontinuation were consent withdrawal (19.6%) and adverse events (17.3%). Rates of discontinuation were reduced from 49% to 29% after a protocol revision and retraining. Systemic safety was typical for PD patients treated with levodopa/carbidopa. Most patients experienced infusion site reactions, particularly nodules (30.8%) and hematoma (25.2%), which were judged mostly mild to moderate and led to discontinuation in only 10.3% of the participants. CONCLUSIONS Subcutaneous levodopa/carbidopa continuous infusion with ND0612 is generally safe, with typical infusion site reactions for SC delivery as the main adverse event. © 2021 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Werner Poewe
- Department of Neurology, Medical University Innsbruck, Innsbruck, Austria
| | - Fabrizio Stocchi
- University and Institute for Research and Medical Care IRCCS San Raffaele, Rome, Italy
| | - David Arkadir
- Department of Neurology, The Faculty of Medicine, Hadassah Medical Center, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Georg Ebersbach
- Movement Disorder Clinic, Beelitz-Heilstaetten, Beelitz, Germany
| | - Aaron L Ellenbogen
- Michigan Institute for Neurological Disorders, Farmington Hills, Michigan, USA
| | - Nir Giladi
- Tel Aviv Medical Center, Sackler School of Medicine, Sagol School of Neurosciences, Neurological Institute, Tel-Aviv University, Tel Aviv, Israel
| | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, Florida, USA
| | - Karl Kieburtz
- Departments of Neurology, Wayne State University School of Medicine and Henry Ford Hospital, Detroit, Michigan, USA
| | | | - C Warren Olanow
- Departments of Neurology, Wayne State University School of Medicine and Henry Ford Hospital, Detroit, Michigan, USA
| | - Tanya Simuni
- Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Astrid Thomas
- Department of Neuroscience, Imaging and Clinical Sciences and Center of Advanced Studies and Technology CAST, University Chieti Pescara, Chieti, Italy
| | - Abraham Zlotogorski
- Department of Dermatology, The Faculty of Medicine, Hadassah Medical Center, Hebrew University of Jerusalem, Jerusalem, Israel
| | | | | | | | | | | | | | | | - Alberto J Espay
- James J. and Joan A. Gardner Center for Parkinson's Disease and Movement Disorders, University of Cincinnati, Cincinnati, Ohio, USA
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Hauser RA, Hattori N, Fernandez H, Isaacson SH, Mochizuki H, Rascol O, Stocchi F, Li J, Mori A, Nakajima Y, Ristuccia R, LeWitt P. Efficacy of Istradefylline, an Adenosine A2A Receptor Antagonist, as Adjunctive Therapy to Levodopa in Parkinson's Disease: A Pooled Analysis of 8 Phase 2b/3 Trials. J Parkinsons Dis 2021; 11:1663-1675. [PMID: 34486986 PMCID: PMC8609697 DOI: 10.3233/jpd-212672] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Istradefylline is a selective adenosine A2A receptor antagonist for the treatment of patients with Parkinson's disease (PD) experiencing OFF episodes while on levodopa/decarboxylase inhibitor. OBJECTIVE This pooled analysis of eight randomized, placebo-controlled, double-blind phase 2b/3 studies evaluated the efficacy and safety of istradefylline. METHODS Istradefylline was evaluated in PD patients receiving levodopa with carbidopa/benserazide and experiencing motor fluctuations. Eight 12- or 16-week trials were conducted (n = 3,245); four of these studies were the basis for istradefylline's FDA approval. Change in OFF time as assessed in patient-completed 24-h PD diaries at Week 12 was the primary endpoint. All studies were designed with common methodology, thereby permitting pooling of data. Pooled analysis results from once-daily oral istradefylline (20 and 40 mg/day) and placebo were evaluated using a mixed-model repeated-measures approach including study as a factor. RESULTS Among 2,719 patients (placebo, n = 992; 20 mg/day, n = 848; 40 mg/day, n = 879), OFF hours/day were reduced at Week 12 at istradefylline dosages of 20 mg/day (least-squares mean difference [LSMD] from placebo in reduction from baseline [95%CI], -0.38 h [-0.61, -0.15]) and 40 mg/day (-0.45 h [-0.68, -0.22], p < 0.0001); ON time without troublesome dyskinesia (ON-WoTD) significantly increased. Similar results were found in the four-study pool (OFF hours/day, 20 mg/day, -0.75 h [-1.10, -0.40]; 40 mg/day, -0.82 h [-1.17, -0.47]). Istradefylline was generally well-tolerated; the average study completion rate among istradefylline-treated patients across all studies was 89.2%. Dyskinesia was the most frequent adverse event (placebo, 9.6%; 20 mg/day, 16.1%; 40 mg/day, 17.7%). CONCLUSION In this pooled analysis, istradefylline significantly improved OFF time and ON-WoTD relative to placebo and was well-tolerated.
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Affiliation(s)
- Robert A Hauser
- Parkinson's Disease and Movement Disorders Center, Department of Neurology, University of South Florida, Tampa, FL, USA
| | - Nobutaka Hattori
- Department of Neurology, Juntendo University School of Medicine, Tokyo, Japan
| | - Hubert Fernandez
- Center for Neuro-Restoration, Cleveland Clinic, Cleveland, OH, USA
| | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | - Hideki Mochizuki
- Department of Neurology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Olivier Rascol
- Clinical Investigation Center CIC1436, Departments of Neurosciences and Clinical Pharmacology, Parkinson Expert Center, NS-Park/FCRIN Network and NeuroToul COEN Center, CHU de Toulouse, INSERM and University of Toulouse 3, Toulouse, France
| | | | - June Li
- Kyowa Kirin, Inc., Princeton, NJ, USA
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Usnich T, Vollstedt EJ, Schell N, Skrahina V, Bogdanovic X, Gaber H, Förster TM, Heuer A, Koleva-Alazeh N, Csoti I, Basak AN, Ertan S, Genc G, Bauer P, Lohmann K, Grünewald A, Schymanski EL, Trinh J, Schaake S, Berg D, Gruber D, Isaacson SH, Kühn AA, Mollenhauer B, Pedrosa DJ, Reetz K, Sammler EM, Valente EM, Valzania F, Volkmann J, Zittel S, Brüggemann N, Kasten M, Rolfs A, Klein C. LIPAD (LRRK2/Luebeck International Parkinson's Disease) Study Protocol: Deep Phenotyping of an International Genetic Cohort. Front Neurol 2021; 12:710572. [PMID: 34475849 PMCID: PMC8406937 DOI: 10.3389/fneur.2021.710572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 07/13/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Pathogenic variants in the Leucine-rich repeat kinase 2 (LRRK2) gene are the most common known monogenic cause of Parkinson's disease (PD). LRRK2-linked PD is clinically indistinguishable from idiopathic PD and inherited in an autosomal dominant fashion with reduced penetrance and variable expressivity that differ across ethnicities and geographic regions. Objective: To systematically assess clinical signs and symptoms including non-motor features, comorbidities, medication and environmental factors in PD patients, unaffected LRRK2 pathogenic variant carriers, and controls. A further focus is to enable the investigation of modifiers of penetrance and expressivity of LRRK2 pathogenic variants using genetic and environmental data. Methods: Eligible participants are invited for a personal or online examination which comprises completion of a detailed eCRF and collection of blood samples (to obtain DNA, RNA, serum/plasma, immune cells), urine as well as household dust. We plan to enroll 1,000 participants internationally: 300 with LRRK2-linked PD, 200 with LRRK2 pathogenic variants but without PD, 100 PD patients with pathogenic variants in the GBA or PRKN genes, 200 patients with idiopathic PD, and 200 healthy persons without pathogenic variants. Results: The eCRF consists of an investigator-rated (1 h) and a self-rated (1.5 h) part. The first part includes the Movement Disorder Society Unified Parkinson's Disease Rating, Hoehn &Yahr, and Schwab & England Scales, the Brief Smell Identification Test, and Montreal Cognitive Assessment. The self-rating part consists of a PD risk factor, food frequency, autonomic dysfunction, and quality of life questionnaires, the Pittsburgh Sleep Quality Inventory, and the Epworth Sleepiness as well as the Hospital Anxiety and Depression Scales. The first 15 centers have been initiated and the first 150 participants enrolled (as of March 25th, 2021). Conclusions: LIPAD is a large-scale international scientific effort focusing on deep phenotyping of LRRK2-linked PD and healthy pathogenic variant carriers, including the comparison with additional relatively frequent genetic forms of PD, with a future perspective to identify genetic and environmental modifiers of penetrance and expressivity Clinical Trial Registration:ClinicalTrials.gov, NCT04214509.
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Affiliation(s)
- Tatiana Usnich
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | | | - Nathalie Schell
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | | | | | | | | | | | | | - Ilona Csoti
- Gertrudis Clinic Biskirchen, Parkinson-Center, Leun, Germany
| | - Ayse Nazli Basak
- Neurodegeneration Research Laboratory, Suna and Inan Kirac Foundation, Koç University Translational Medicine Research Center, Koç University School of Medicine, Istanbul, Turkey
| | - Sibel Ertan
- Department of Neurology, Koç University School of Medicine, Istanbul, Turkey
| | - Gencer Genc
- Sişli Etfal Training and Research Hospital, Istanbul, Turkey
| | | | - Katja Lohmann
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Anne Grünewald
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Emma L Schymanski
- Luxembourg Centre for Systems Biomedicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Joanne Trinh
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Susen Schaake
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Daniela Berg
- Department of Neurology, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Doreen Gruber
- Neurologisches Fachkrankenhaus Für Bewegungsstörungen/Parkinson, Beelitz, Germany
| | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorder Center of Boca Raton, Boca Raton, FL, United States
| | - Andrea A Kühn
- Department of Neurology and Experimental Neurology, Charité Medical University Berlin, Berlin, Germany
| | | | - David J Pedrosa
- Department of Neurology, University Hospital of Gießen and Marburg, Marburg, Germany
| | - Kathrin Reetz
- Department of Neurology, University Hospital Rheinisch-Westfälische Technische Hochschule Aachen, Aachen, Germany
| | - Esther M Sammler
- Medical Research Council Protein Phosphorylation and Ubiquitylation Unit and Molecular and Clinical Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee, United Kingdom
| | - Enza Maria Valente
- Department of Molecular Medicine, University of Pavia and Istituto di Ricovero e Cura a Carattere Scientifico Mondino Foundation, Pavia, Italy
| | - Franco Valzania
- Neurology Unit, Azienda USL - IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - Jens Volkmann
- Department of Neurology, University Hospital Würzburg, Würzburg, Germany
| | - Simone Zittel
- Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Norbert Brüggemann
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany.,Department of Neurology, University of Lübeck, Lübeck, Germany
| | - Meike Kasten
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany.,Department of Psychiatry and Psychotherapy, University of Lübeck, Lübeck, Germany
| | | | - Christine Klein
- Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
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Tanner CM, Pahwa R, Hauser RA, Oertel WH, Isaacson SH, Jankovic J, Johnson R, Chernick D, Hubble J. EASE LID 2: A 2-Year Open-Label Trial of Gocovri (Amantadine) Extended Release for Dyskinesia in Parkinson's Disease. J Parkinsons Dis 2021; 10:543-558. [PMID: 31929122 PMCID: PMC7242830 DOI: 10.3233/jpd-191841] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Gocovri® (amantadine) extended release capsules are approved for the treatment of dyskinesia in patients with Parkinson's disease (PD) receiving levodopa-based therapy. OBJECTIVE To evaluate the long-term safety, tolerability, and efficacy of Gocovri in patients with PD experiencing levodopa-induced dyskinesia. METHODS In this 2-year open-label trial, patients completing double-blind Gocovri clinical trials or excluded from prior trials because of deep-brain stimulation (DBS) received Gocovri 274 mg once daily at bedtime. The primary objective was to evaluate long-term safety and tolerability. In addition, dyskinesia and OFF time were assessed using Part IV (Motor Complications) scores on the Movement Disorder Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS). RESULTS Among 223 enrolled patients (mean PD duration, 11.7 years; mean levodopa use, 9.3 years), 75.8% completed 1 year of treatment and 57.8% completed the trial, with a median treatment duration of 1.9 years. Common adverse events were fall (32.7%), hallucination (24.2%), peripheral edema (16.1%), constipation (13.5%), and urinary tract infection (10.3%); 31 patients (13.9%) discontinued because of adverse events considered related to study drug. At baseline, MDS-UPDRS Part IV scores were lower for patients continuing Gocovri (mean, 6.5 points) than for previous placebo (9.4) or DBS groups (10.5) but were similar for all groups by week 8 (6.3, 6.2, 6.4, respectively), and remained low for the duration of the trial (at week 100: 6.9, 7.3, 7.0, respectively). CONCLUSIONS In patients with PD, Gocovri showed long-term safety and tolerability consistent with double-blind trial findings, and durable reduction in motor complications (dyskinesia and OFF time).
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Affiliation(s)
| | - Rajesh Pahwa
- University of Kansas Medical Center, Kansas City, KS, USA
| | | | | | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | - Joseph Jankovic
- Parkinson's Disease Center and Movement Disorders Clinic, Department of Neurology, Baylor College of Medicine, Houston TX, USA
| | - Reed Johnson
- Adamas Pharmaceuticals, Inc., Emeryville, CA, USA
| | | | - Jean Hubble
- Adamas Pharmaceuticals, Inc., Emeryville, CA, USA
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Jackson R, Brams MN, Citrome L, Hoberg AR, Isaacson SH, Kane JM, Kumar R. Assessment of the Impact of Tardive Dyskinesia in Clinical Practice: Consensus Panel Recommendations. Neuropsychiatr Dis Treat 2021; 17:1589-1597. [PMID: 34079257 PMCID: PMC8164384 DOI: 10.2147/ndt.s310605] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 04/30/2021] [Indexed: 01/01/2023] Open
Abstract
PURPOSE Tardive dyskinesia (TD) is a hyperkinetic movement disorder in which patients experience abnormal involuntary movements that can have profound negative impacts on physical, cognitive, and psychosocial functioning. Use of measures to assess the functional impact of TD in routine clinical practice is lacking. To address this gap, an advisory panel of experts in psychiatry and movement disorder neurology was convened to develop consensus recommendations on assessment of the impact of TD on patients' functioning that can be used in clinical practice. METHODS An advisory panel provided recommendations using an iterative process, beginning with a narrative literature review regarding current practices for assessing the impact of TD in clinical settings. A detailed summary was generated, and the advisory panel provided comments about the content and answered questions about assessing TD impact in clinical practice. The panelists' responses were discussed during a virtual meeting held on August 28, 2020. A second meeting on September 25, 2020, focused on developing and refining recommendations for assessment of the impact of TD in clinical practice. At the conclusion of the second meeting, general consensus was reached on all recommendation statements. RESULTS As part of routine clinical practice, it is imperative to assess the impact of TD on the patient's life to help guide treatment decisions. Key domains for assessing the overall impact of TD include social, physical, vocational, and psychological functioning and the impact of TD on the underlying psychiatric disorder. Assessment of TD impact should be performed at every patient visit. Impact assessments should include consultation with patients, caregivers, and family members. Shared decision-making to initiate TD treatment should consider impact. CONCLUSION The impact of TD should be assessed routinely, including the key domains of social, physical, vocational, and psychological functioning and the impact of TD on the underlying psychiatric disorder.
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Affiliation(s)
- Richard Jackson
- University of Michigan School of Medicine, Ann Arbor, MI, USA
| | | | | | | | - Stuart H Isaacson
- Parkinson’s Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | - John M Kane
- Feinstein Institution for Medical Research, Lynbrook, NY, USA
| | - Rajeev Kumar
- Rocky Mountain Movement Disorders Center, Englewood, CO, USA
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Isaacson SH, Ballard CG, Kreitzman DL, Coate B, Norton JC, Fernandez HH, Ilic TV, Azulay JP, Ferreira JJ, Abler V, Stankovic S. Efficacy results of pimavanserin from a multi-center, open-label extension study in Parkinson's disease psychosis patients. Parkinsonism Relat Disord 2021; 87:25-31. [PMID: 33933853 DOI: 10.1016/j.parkreldis.2021.04.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 02/14/2020] [Revised: 03/26/2021] [Accepted: 04/10/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Pimavanserin, a selective 5-HT2A inverse agonist/antagonist, was approved for hallucinations and delusions associated with Parkinson's disease psychosis (PDP). We present durability of response with pimavanserin in patients with PDP for an additional 4 weeks of treatment. METHODS This was an open-label extension (OLE) study in patients previously completing one of three double-blind, placebo-controlled (Core) studies. All patients received pimavanserin 34 mg once daily. Efficacy assessments included the Scale for the Assessment of Positive Symptoms (SAPS) PD and H + D scales, Clinical Global Impression (CGI) Improvement and Severity scales and Caregiver Burden Scale (CBS), through 4 weeks in the OLE. Safety assessments were conducted at each visit. RESULTS Of 459 patients, 424 (92.4%) had a Week 4 efficacy assessment. At Week 4 (10 weeks total treatment), SAPS-PD mean (standard deviation) change from OLE baseline was -1.8 (5.5) and for SAPS-H + D was -2.1 (6.2) with pimavanserin 34 mg. Patients receiving placebo during the Core studies had greater improvements (SAPS-PD -2.9 [5.6]; SAPS-H + D -3.5 [6.3]) during the OLE. For participants treated with pimavanserin 8.5 or 17 mg during the Core studies, further improvement was observed during the OLE with pimavanserin 34 mg. The mean change from Core Study baseline for SAPS-PD score was similar among prior pimavanserin 34 mg and prior placebo-treated participants (-7.1 vs. -7.0). The CGI-I response rate (score of 1 or 2) at Week 4 was 51.4%. Adverse events were reported by 215 (46.8%) patients during the first 4 weeks of OLE. The most common AEs were fall (5.9%), hallucination (3.7%), urinary tract infection (2.8%), insomnia (2.4%), and peripheral edema (2.2%) CONCLUSIONS: Patients previously on pimavanserin 34 mg during three blinded core studies had durability of efficacy during the subsequent 4 week OLE SAPS-PD assessment. Patients previously on blinded placebo improved after 4 weeks of OL pimavanserin treatment. These results in over 400 patients from 14 countries support the efficacy of pimavanserin for treating PDP.
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Affiliation(s)
- Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA.
| | | | - David L Kreitzman
- Parkinson's Disease and Movement Disorders Center of Long Island, Commack, NY, USA
| | - Bruce Coate
- ACADIA Pharmaceuticals Inc., San Diego, CA, USA
| | | | - Hubert H Fernandez
- Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Tihomir V Ilic
- Medical Faculty of Military Medical Academy, Belgrade, Serbia
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Isaacson JR, Brillman S, Chhabria N, Isaacson SH. Impact of DaTscan Imaging on Clinical Decision Making in Clinically Uncertain Parkinson's Disease. J Parkinsons Dis 2021; 11:885-889. [PMID: 33554925 PMCID: PMC8150650 DOI: 10.3233/jpd-202506] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background: The diagnosis of Parkinson’s disease (PD) is primarily clinical, but in cases of diagnostic uncertainty, evaluation of nigrostriatal dopaminergic degeneration (NSDD) by imaging of the dopamine transporter using DaTscan with single-photon emission computed tomography (SPECT) brain imaging may be helpful. Objective/Methods: In the current paper, we describe clinical scenarios for which DaTscan imaging was used in a prospective case series of 201 consecutive patients in whom a movement disorder specialist ordered DaTscan imaging to clarify NSDD. We describe the impact of DaTscan results on changing or confirming pre-DaTscan clinical diagnosis and on post-DaTscan treatment changes. Results/Conclusion: DaTscan imaging can be useful in several clinical scenarios to determine if NSDD is present. These include in patients with early subtle symptoms, suboptimal response to levodopa, prominent action tremor, drug-induced parkinsonism, and in patients with lower extremity or other less common parkinsonism clinical presentations. We also found DaTscan imaging to be useful to determine underlying NSDD in patients with PD diagnosis for 3-5 years but without apparent clinical progression or development of motor fluctuations. Overall, in 201 consecutive patients with clinically questionable NSDD, DaTscan was abnormal in 58.7% of patients, normal in 37.8%, and inconclusive in 3.5%. DaTscan imaging changed clinical diagnosis in 39.8% of patients and led to medication therapy changes in 70.1% of patients.
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Affiliation(s)
- Jonathan R Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | - Salima Brillman
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | - Nisha Chhabria
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
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Isaacson SH, Dashtipour K, Mehdirad AA, Peltier AC. Management Strategies for Comorbid Supine Hypertension in Patients with Neurogenic Orthostatic Hypotension. Curr Neurol Neurosci Rep 2021; 21:18. [PMID: 33687577 PMCID: PMC7943503 DOI: 10.1007/s11910-021-01104-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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] [Accepted: 01/21/2021] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW In autonomic failure, neurogenic orthostatic hypotension (nOH) and neurogenic supine hypertension (nSH) are interrelated conditions characterized by postural blood pressure (BP) dysregulation. nOH results in a sustained BP drop upon standing, which can lead to symptoms that include lightheadedness, orthostatic dizziness, presyncope, and syncope. nSH is characterized by elevated BP when supine and, although often asymptomatic, may increase long-term cardiovascular and cerebrovascular risk. This article reviews the pathophysiology and clinical characteristics of nOH and nSH, and describes the management of patients with both nOH and nSH. RECENT FINDINGS Pressor medications required to treat the symptoms of nOH also increase the risk of nSH. Because nOH and nSH are hemodynamically opposed, therapies to treat one condition may exacerbate the other. The management of patients with nOH who also have nSH can be challenging and requires an individualized approach to balance the short- and long-term risks associated with these conditions. Approaches to manage neurogenic BP dysregulation include nonpharmacologic approaches and pharmacologic treatments. A stepwise treatment approach is presented to help guide neurologists in managing patients with both nOH and nSH.
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Affiliation(s)
- Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, 951 NW 13th Street, Bldg. 5-E, Boca Raton, FL, USA.
| | - Khashayar Dashtipour
- Division of Movement Disorders, Department of Neurology, Loma Linda University School of Medicine, Loma Linda, CA, USA
| | - Ali A Mehdirad
- Wright State University, Dayton VA Medical Center, Dayton, OH, USA
| | - Amanda C Peltier
- Department of Neurology and Medicine, Vanderbilt University, Nashville, TN, USA
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Citrome L, Isaacson SH, Larson D, Kremens D. Tardive Dyskinesia in Older Persons Taking Antipsychotics. Neuropsychiatr Dis Treat 2021; 17:3127-3134. [PMID: 34703232 PMCID: PMC8524363 DOI: 10.2147/ndt.s328301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 09/21/2021] [Indexed: 12/22/2022] Open
Abstract
Tardive dyskinesia (TD) is a hyperkinetic movement disorder caused by the use of dopamine receptor-blocking agents (DRBAs), a category of medications that includes first- and second-generation antipsychotics (APs) and agents such as metoclopramide that are used for the treatment of nausea and gastrointestinal dysmotility. While TD can affect people of all ages, older age is associated with increased risk of TD and also with the emergence of TD occurring after shorter treatment durations and lower dosages of DRBAs. TD is characterized by involuntary movements that include the face, limbs, and trunk, and is associated with increased comorbidities, social stigmatization, and impaired physical and mental health. Once present, TD tends to persist despite AP dose adjustment or discontinuation. Even with the use of US Food and Drug Administration (FDA)-approved medications for TD, symptoms may persist. Because the leading hypothesis for the pathophysiology of TD has been dysregulation of dopamine transmission due to treatment with DRBAs, APs that avoid postsynaptic dopamine receptor blockade may provide an alternative therapeutic approach for patients who require an AP. In this review, we discuss the risks, burdens, prevention, and management of TD, with a focus on older people.
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Affiliation(s)
| | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | - Danielle Larson
- Parkinson's Disease and Movement Disorders Center, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Daniel Kremens
- Department of Neurology, Jefferson Comprehensive Parkinson's Disease and Movement Disorders Center, Thomas Jefferson University, Philadelphia, PA, USA
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Isaacson SH, Lyons KE, Amjad F, Pahwa R. Development, Efficacy and Safety of Once-daily, Bedtime, Extended-release Amantadine (Gocovri®) to Treat Dyskinesia and OFF Time in Parkinson’s Disease. Neurology 2021. [DOI: 10.17925/usn.2021.17.1.36] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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Abstract
Parkinson disease (PD) is a progressive neurodegenerative disease characterized by motor symptoms such as rigidity, resting tremor, and slowed movement in addition to nonmotor symptoms. As the disease advances and a patient's response duration to a levodopa dose is shortened, OFF episodes become more prevalent, negatively impacting their quality of life. Clinicians may employ a variety of therapeutic strategies to reduce OFF time, such as altering the levodopa dose or initiating adjuvant therapy. Medications to treat daily OFF time include dopamine agonists, MAO-B inhibitors, COMT inhibitors, amantadine ER, and adenosine A2A antagonists; as-needed rescue therapies include subcutaneous apomorphine, apomorphine sublingual film, and orally inhaled levodopa; and, when necessary, advanced therapies such as carbidopa/levodopa enteral suspension or DBS may be indicated.
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Affiliation(s)
- Rajesh Pahwa
- The University of Kansas Medical Center, Kansas City
| | - Stuart H Isaacson
- Parkinson’s Disease and Movement Disorders Center of Boca Raton, Florida
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Abstract
The pathophysiology of PD has been elusive, but the motor symptoms of the disease are believed to result from a dopamine deficiency in the substantia nigra. As a patient's disease progresses, OFF episodes emerge due to a shorter duration of response to levodopa treatment. OFF episodes include both motor and nonmotor symptoms, are common, and can occur at any time. OFF episodes can be predictable or unpredictable, significantly impact patient quality of life and functionality, and place a burden on families. By facilitating communication with patients and care partners using assessment tools, clinicians can detect symptoms of OFF episodes earlier.
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Isaacson SH, Peckham E, Tse W, Waln O, Way C, Petrossian MT, Dahodwala N, Soileau MJ, Lew M, Dietiker C, Luthra N, Agarwal P, Dhall R, Morgan J, Calakos N, Zesiewicz TA, Shamim EA, Kumar R, LeWitt P, Shill HA, Simmons A, Pagan FL, Khemani P, Tate J, Maddux B, Luo L, Ondo W, Hallett M, Rajagopal A, Chidester P, Rosenbluth KH, Delp SL, Pahwa R. Prospective Home-use Study on Non-invasive Neuromodulation Therapy for Essential Tremor. Tremor Other Hyperkinet Mov (N Y) 2020; 10:29. [PMID: 32864188 PMCID: PMC7427656 DOI: 10.5334/tohm.59] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [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: 04/10/2020] [Accepted: 06/14/2020] [Indexed: 02/07/2023] Open
Abstract
Highlights This prospective study is one of the largest clinical trials in essential tremor to date. Study findings suggest that individualized non-invasive neuromodulation therapy used repeatedly at home over three months results in safe and effective hand tremor reduction and improves quality of life for many essential tremor patients. Background Two previous randomized, controlled, single-session trials demonstrated efficacy of non-invasive neuromodulation therapy targeting the median and radial nerves for reducing hand tremor. This current study evaluated efficacy and safety of the therapy over three months of repeated home use. Methods This was a prospective, open-label, post-clearance, single-arm study with 263 patients enrolled across 26 sites. Patients were instructed to use the therapy twice daily for three months. Pre-specified co-primary endpoints were improvements on clinician-rated Tremor Research Group Essential Tremor Rating Assessment Scale (TETRAS) and patient-rated Bain & Findley Activities of Daily Living (BF-ADL) dominant hand scores. Other endpoints included improvement in the tremor power detected by an accelerometer on the therapeutic device, Clinical and Patient Global Impression scores (CGI-I, PGI-I), and Quality of Life in Essential Tremor (QUEST) survey. Results 205 patients completed the study. The co-primary endpoints were met (p≪0.0001), with 62% (TETRAS) and 68% (BF-ADL) of 'severe' or 'moderate' patients improving to 'mild' or 'slight'. Clinicians (CGI-I) reported improvement in 68% of patients, 60% (PGI-I) of patients reported improvement, and QUEST improved (p = 0.0019). Wrist-worn accelerometer recordings before and after 21,806 therapy sessions showed that 92% of patients improved, and 54% of patients experienced ≥50% improvement in tremor power. Device-related adverse events (e.g., wrist discomfort, skin irritation, pain) occurred in 18% of patients. No device-related serious adverse events were reported. Discussion This study suggests that non-invasive neuromodulation therapy used repeatedly at home over three months results in safe and effective hand tremor reduction in many essential tremor patients.
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Affiliation(s)
- Stuart H. Isaacson
- Parkinson’s Disease and Movement Disorders of Boca Raton, Boca Raton, FL, US
| | | | - Winona Tse
- Mount Sinai Hospital, Department of Neurology, New York, NY, US
| | - Olga Waln
- Houston Methodist, Department of Neurology, Houston, TX, US
| | - Christopher Way
- Parkinson’s Institute and Clinical Center, Mountain View, CA, US
| | - Melita T. Petrossian
- Pacific Neuroscience Institute, Pacific Movement Disorders Center, Santa Monica, CA, US
| | - Nabila Dahodwala
- University of Pennsylvania, Department of Neurology, Philadelphia, PA, US
| | | | - Mark Lew
- University of Southern California, Department of Neurology, Los Angeles, CA, US
| | - Cameron Dietiker
- University of California San Francisco, Movement Disorder and Neuromodulation Center, San Francisco, CA, US
| | - Nijee Luthra
- University of California San Francisco, Movement Disorder and Neuromodulation Center, San Francisco, CA, US
| | - Pinky Agarwal
- EvergreenHealth, Department of Neurology, Kirkland, WA, US
| | - Rohit Dhall
- University of Arkansas for Medical Sciences, Department of Neurology, Little Rock, AR, US
| | - John Morgan
- Augusta University, Department of Neurology, Augusta, GA, US
| | - Nicole Calakos
- Duke University School of Medicine, Department of Neurology, Durham, NC, US
| | | | - Ejaz A. Shamim
- Kaiser Permanente MidAtlantic States, Department of Neurology, MidAtlantic Permanente Research Institute, Largo, MD, US
| | - Rajeev Kumar
- Rocky Mountain Movement Disorders Center, Englewood, CO, US
| | - Peter LeWitt
- Henry Ford Health System, Department of Neurology, West Bloomfield, MI, US
| | - Holly A. Shill
- Barrow Neurological Institute, Department of Neurology, Phoenix, AZ, US
| | - Adam Simmons
- Hospital for Special Care, Department of Research, New Britain, CT, US
| | - Fernando L. Pagan
- Georgetown University Medical Center, Department of Neurology, Washington DC, US
| | - Pravin Khemani
- Swedish Neuroscience Institute, Department of Neurology, Seattle, WA, US
| | - Jessica Tate
- Wake Forest Baptist Health, Department of Neurology, Winston-Salem, NC, US
| | | | - Lan Luo
- Beth Israel Deaconess Medical Center, Harvard Medical School, Department of Neurology, Boston, MA, US
| | - William Ondo
- Houston Methodist, Department of Neurology, Houston, TX, US
| | - Mark Hallett
- National Institute of Neurological Disorders and Stroke, Human Motor Control Section, Bethesda, MD, US
| | | | | | | | - Scott L. Delp
- Stanford University, Department of Bioengineering, Stanford, CA, US
| | - Rajesh Pahwa
- University of Kansas Medical Center, Department of Neurology, Kansas City, KS, US
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Isaacson SH, Coate B, Norton J, Stankovic S. Blinded SAPS-PD Assessment After 10 Weeks of Pimavanserin Treatment for Parkinson's Disease Psychosis. J Parkinsons Dis 2020; 10:1389-1396. [PMID: 32716320 PMCID: PMC7683065 DOI: 10.3233/jpd-202047] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Parkinson's disease psychosis (PDP) is a common nonmotor symptom that affects up to 60% of patients. Pimavanserin, a selective 5-HT2A inverse agonist/antagonist, is approved for treating hallucinations and delusions associated with PDP. OBJECTIVE Evaluate the efficacy and tolerability of pimavanserin in an open-label extension (OLE) study. METHODS Patients completing a pivotal 6-week placebo-controlled trial (Core Study) could enroll in the OLE. All patients pimavanserin 34 mg once daily, blinded to previous treatment allocation. Prespecified blinded assessments at Week 4 were the Scale for the Assessment of Positive Symptoms (SAPS) PD version and SAPS H + D scales, Caregiver Burden Scale (CBS), and Clinical Global Impression (CGI) Improvement and Severity scales. RESULTS Of 171 who entered the OLE, 148 (87%) completed Week 4. Among patients who received placebo in the Core Study, mean (SD) change from OLE baseline to OLE Week 4 for the SAPS-PD was - 3.4 (6.3); p < 0.0001. Mean change from Core Study baseline to OLE Week 4 for SAPS-PD was similar among prior pimavanserin- and placebo-treated patients (-6.9 vs. -6.3). Improvement was similar with CGI-I, CGI-S, CBS, and SAPS-H + D in patients previously treated with placebo. Adverse events occurred in 92 (53.8%) patients during the 4-week OLE. CONCLUSION Improvements at OLE Week 4 from pretreatment baseline were similar with placebo and pimavanserin in the Core Study. The beneficial effects observed with pimavanserin in the 6-week Core Study were maintained for 4 weeks in the blinded OLE, supporting the durability of response with pimavanserin 34 mg for PDP over 10 weeks.
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Affiliation(s)
- Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | - Bruce Coate
- ACADIA Pharmaceuticals Inc., San Diego, CA, USA
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Isaacson SH, Ondo W, Jackson CE, Trosch RM, Molho E, Pagan F, Lew M, Dashtipour K, Clinch T, Espay AJ. Safety and Efficacy of RimabotulinumtoxinB for Treatment of Sialorrhea in Adults: A Randomized Clinical Trial. JAMA Neurol 2020; 77:461-469. [PMID: 31930364 PMCID: PMC6990829 DOI: 10.1001/jamaneurol.2019.4565] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Question Are rimabotulinumtoxinB injections safe and effective for management of sialorrhea in adults? Findings In this randomized clinical trial of 187 adults with sialorrhea, rimabotulinumtoxinB injections (2500 U and 3500 U) appeared to statistically significantly reduce sialorrhea vs placebo (treatment effect, −0.30 for both doses vs placebo, P < .001). Therapeutic benefits were seen as early as 1 week after injection and persisted for 11 to 15 weeks. Meaning RimabotulinumtoxinB is a safe, effective, and well-tolerated treatment for sialorrhea in adults. Importance RimabotulinumtoxinB (RIMA) may be preferable as an anti-sialorrhea treatment compared with current oral anticholinergic drugs in people with neurological disorders. Objective To assess the safety, efficacy, and tolerability of RIMA injections for the treatment of sialorrhea in adults. Design, Setting, and Participants This randomized, parallel, double-blind, placebo-controlled clinical trial of RIMA 2500 U and 3500 U was conducted from November 14, 2013, to January 23, 2017. A total of 249 adult patients with troublesome sialorrhea secondary to any disorder or cause were screened. Of them, 13 refused further participation in the study or were lost to follow-up and 49 did not fulfill the criteria for participation; 187 were ultimately enrolled. Patients had to have a minimum unstimulated salivary flow rate (USFR) of 0.2 g/min and a minimum Drooling Frequency and Severity Scale score of 4. Exposures Patients were randomized 1:1:1 to RIMA, 2500 U (n = 63); RIMA, 3500 U (n = 64); or placebo (n = 60). Main Outcomes and Measures Primary outcomes were the change in USFR from baseline to week 4 and the Clinical Global Impression of Change (CGI-C) at week 4. The CGI-C scores were recorded on a 7-point scale ranging from very much improved to very much worse. Adverse events were recorded throughout the trial period. Results Of 187 patients enrolled (147 men [78.6%]; mean [SD] age, 63.9 [13.3] years), 122 patients had Parkinson disease (65.2%), 13 (7.0%) were stroke survivors, 12 had amyotrophic lateral sclerosis (6.4%), 6 had medication-induced sialorrhea (3.2%), 4 had adult cerebral palsy (2.1%), and 30 had sialorrhea owing to other causes (16.0%). A total of 176 completed the study. Treatment with both doses of RIMA significantly reduced USFR at week 4 vs placebo (mean treatment difference, −0.30 g/min [95% CI, −0.39 to −0.21] for both doses vs placebo, P < .001). The CGI-C scores were statistically significantly improved at week 4 for both treatment groups vs placebo (−1.21 [95% CI, −1.56 to −0.87] for 2500 U, −1.14 [95% CI, −1.49 to −0.80] for 3500 U, both P < .001). Treatment benefits were seen as early as 1 week after injection and were maintained over the treatment cycle of approximately 13 weeks. The RIMA injections were well tolerated compared with placebo. The most common adverse events were self-limited mild to moderate dry mouth, dysphagia, and dental caries. Conclusions and Relevance Treatment with RIMA (2500 U and 3500 U) in adults was well tolerated and reduced sialorrhea, with the onset of the effect at 1 week after the injection. These data support the clinical use of RIMA in the management of sialorrhea in adults. Trial Registration ClinicalTrials.gov Identifier: NCT01994109
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Affiliation(s)
- Stuart H Isaacson
- Parkinson's Disease and Movement Disorder Center of Boca Raton, Boca Raton, Florida
| | - William Ondo
- Houston Methodist Neurological Institute, Houston, Texas.,Weill Cornell Medicine, Houston, Texas
| | | | | | - Eric Molho
- Parkinson's Disease and Movement Disorder Center, Albany Medical Center, Albany, New York
| | | | - Mark Lew
- Keck School of Medicine of University of Southern California, Los Angeles
| | | | | | - Alberto J Espay
- James J. and Joan A. Gardner Family Center for Parkinson's Disease and Movement Disorders, University of Cincinnati, Cincinnati, Ohio
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Pfeiffer RF, Isaacson SH, Pahwa R. Clinical implications of gastric complications on levodopa treatment in Parkinson's disease. Parkinsonism Relat Disord 2020; 76:63-71. [PMID: 32461054 DOI: 10.1016/j.parkreldis.2020.05.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [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: 01/07/2020] [Revised: 04/09/2020] [Accepted: 05/01/2020] [Indexed: 12/16/2022]
Abstract
Disorders of the gastrointestinal (GI) tract are common and distressing nonmotor symptoms of Parkinson's disease (PD) that can adversely affect levodopa absorption and lead to OFF periods, also known as motor fluctuations. Gastroparesis, which is primarily defined as delayed gastric emptying (DGE), and Helicobacter pylori infection, which is present with increased frequency in PD, are among the most common and important GI disorders reported in PD that may impair oral levodopa absorption and increase OFF time. Symptoms of gastroparesis include nausea, vomiting, postprandial bloating, fullness, early satiety, abdominal pain, and weight loss. DGE has been reported in a substantial fraction of individuals with PD. Symptoms of H. pylori infection include gastritis and peptic ulcers. Studies have found that DGE and H. pylori infection are correlated with delayed peak levodopa plasma levels and increased incidence of motor fluctuations. Therapeutic strategies devised to minimize the potential that gastric complications will impair oral levodopa absorption and efficacy in PD patients include treatments that circumvent the GI tract, such as apomorphine injection, levodopa intestinal gel delivery, levodopa inhalation powder, and deep brain stimulation. Other strategies aim at improving gastric emptying in PD patients, primarily including prokinetic agents.
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Affiliation(s)
- Ronald F Pfeiffer
- Department of Neurology, Oregon Health and Science University, Portland, OR, USA.
| | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | - Rajesh Pahwa
- Department of Neurology, University of Kansas Medical Center, Kansas City, KS, USA
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Abstract
Although levodopa is an effective medication for the treatment of Parkinson disease, physicians and patients face significant management challenges related to disease progression. Patients typically develop fluctuations in motor symptoms and dyskinesias. Novel treatment options may help clinicians more effectively manage patients' symptoms by extending the duration of response to medication, with improved tolerance. For many patients, nonmotor symptoms impact daily activities more than motor symptoms do. Many pharmacotherapeutic strategies are approved to address motor and nonmotor symptoms and fluctuations. A clear understanding of the advantages and potential adverse effects of each therapy can help clinicians individualize the choice and timing of medications to optimize patient response and hopefully improve quality of life.
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Affiliation(s)
- Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Florida, USA
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Abstract
Parkinson's disease (PD) is diagnosed when patients meet motor symptom criteria (bradykinesia plus tremor or rigidity). However, patients may demonstrate prodromal nonmotor symptoms 5-20 years prior to diagnosis. While motor symptoms are of concern, patients often consider nonmotor symptoms to be just as bothersome. In this brief CME activity, diagnostic criteria and assessment tools are described.
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Affiliation(s)
- Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Florida, USA
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Jankovic J, Goodman I, Safirstein B, Marmon TK, Schenk DB, Koller M, Zago W, Ness DK, Griffith SG, Grundman M, Soto J, Ostrowitzki S, Boess FG, Martin-Facklam M, Quinn JF, Isaacson SH, Omidvar O, Ellenbogen A, Kinney GG. Safety and Tolerability of Multiple Ascending Doses of PRX002/RG7935, an Anti-α-Synuclein Monoclonal Antibody, in Patients With Parkinson Disease: A Randomized Clinical Trial. JAMA Neurol 2019; 75:1206-1214. [PMID: 29913017 DOI: 10.1001/jamaneurol.2018.1487] [Citation(s) in RCA: 194] [Impact Index Per Article: 38.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Importance Aggregated α-synuclein is believed to be central to the pathogenesis of Parkinson disease (PD). PRX002/RG7935 (PRX002) is a humanized monoclonal antibody designed to target aggregated forms of α-synuclein, thereby inhibiting neuron-to-neuron transfer of presumed pathogenic forms of α-synuclein, potentially resulting in neuronal protection and slowing disease progression. Objective To evaluate the safety and tolerability of multiple intravenous infusions of PRX002 in patients with idiopathic PD. Design, Setting, and Participants Multicenter, randomized, double-blind, placebo-controlled, multiple ascending-dose trial at 8 US study centers from July 2014 to September 2016. Eligible participants were aged 40 to 80 years with mild to moderate idiopathic PD (Hoehn and Yahr stages 1-3). Interventions Participants were enrolled into 6 ascending-dose cohorts and randomly assigned to receive PRX002 (0.3 mg/kg, 1.0 mg/kg, 3.0 mg/kg, 10 mg/kg, 30 mg/kg, or 60 mg/kg) or placebo. Participants received 3 intravenous infusions every 4 weeks of PRX002 or placebo and were monitored during a 24-week observational period. Main Outcomes and Measures Safety and tolerability assessments included physical and neurological examinations, laboratory tests, vital signs, and adverse events. Pharmacokinetic parameters included maximum PRX002 concentration, area under the curve, and half-life. Results Of the 80 participants, most were white (97.5%; n = 78) and male (80%; n = 64); median (SD) age was 58 (8.4) years. PRX002 was generally safe and well tolerated; no serious or severe PRX002-related treatment-emergent adverse events (TEAEs) were reported. The TEAEs experienced by at least 5% of patients receiving PRX002, irrespective of relatedness to study drug, were constipation (9.1%; n = 5), infusion reaction (7.3%; n = 4), diarrhea (5.5%; n = 3), headache (5.5%; n = 3), peripheral edema (5.5%; n = 3), post-lumbar puncture syndrome (5.5%; n = 3), and upper respiratory tract infection (5.5%; n = 3). No antidrug antibodies were detected. Serum PRX002 levels increased in an approximately dose-proportional manner; mean terminal elimination half-life was similar across all doses (10.2 days). Rapid dose- and time-dependent mean reductions from baseline vs placebo in free serum α-synuclein levels of up to 97% were seen after a single infusion at the highest dose (F78,284 = 1.66; P = .002), with similar reductions after 2 additional infusions. Mean cerebrospinal fluid PRX002 concentration increased with PRX002 dose and was approximately 0.3% relative to serum across all dose cohorts. Conclusions and Relevance Single and multiple doses of PRX002 were generally safe and well tolerated and resulted in robust binding of peripheral α-synuclein and dose-dependent increases of PRX002 in cerebrospinal fluid, reaching cerebrospinal fluid concentrations that may be expected to engage extracellular aggregated α-synuclein in the brain. Findings support the design of an ongoing phase 2 clinical study (NCT03100149). Trial Registration ClinicalTrials.gov Identifier: NCT02157714.
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Affiliation(s)
- Joseph Jankovic
- Parkinson's Disease Center and Movement Disorders Clinic, Department of Neurology, Baylor College of Medicine, Houston, Texas
| | | | | | - Tonya K Marmon
- Prothena Biosciences Inc, South San Francisco, California
| | - Dale B Schenk
- Prothena Biosciences Inc, South San Francisco, California
| | - Martin Koller
- Prothena Biosciences Inc, South San Francisco, California
| | - Wagner Zago
- Prothena Biosciences Inc, South San Francisco, California
| | - Daniel K Ness
- Prothena Biosciences Inc, South San Francisco, California
| | | | - Michael Grundman
- University of California, San Diego.,Global R&D Partners, LLC, San Diego, California
| | - Jay Soto
- Prothena Biosciences Inc, South San Francisco, California
| | - Susanne Ostrowitzki
- Genentech Inc, Product Development, Neuroscience, South San Francisco, California
| | | | | | - Joseph F Quinn
- Oregon Health & Science University, Portland.,Portland Veterans Affairs Medical Center, Portland, Oregon
| | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, Florida
| | - Omid Omidvar
- Collaborative Neuroscience Network LLC, Long Beach, California
| | | | - Gene G Kinney
- Prothena Biosciences Inc, South San Francisco, California
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Pahwa R, Isaacson SH, Torres-Russotto D, Nahab FB, Lynch PM, Kotschet KE. Role of the Personal KinetiGraph in the routine clinical assessment of Parkinson’s disease: recommendations from an expert panel. Expert Rev Neurother 2018; 18:669-680. [DOI: 10.1080/14737175.2018.1503948] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Rajesh Pahwa
- Department of Neurology, University of Kansas Medical Center, Kansas City, KS, USA
| | - Stuart H. Isaacson
- Parkinson’s Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | | | - Fatta B. Nahab
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | | | - Katya E. Kotschet
- Florey Neuroscience Institute, University of Melbourne, Parkville, Australia
- Department of Neurology, St Vincent’s Hospital, Fitzroy, Australia
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Hauser RA, Pahwa R, Tanner CM, Oertel W, Isaacson SH, Johnson R, Felt L, Stempien MJ. ADS-5102 (Amantadine) Extended-Release Capsules for Levodopa-Induced Dyskinesia in Parkinson's Disease (EASE LID 2 Study): Interim Results of an Open-Label Safety Study. J Parkinsons Dis 2018; 7:511-522. [PMID: 28777755 PMCID: PMC5611804 DOI: 10.3233/jpd-171134] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Background: Medical treatment of levodopa-induced dyskinesia (LID) in Parkinson’s disease (PD) is an unmet need. ADS-5102 (amantadine) extended-release capsules is being developed for the treatment of LID in patients with PD. Objective: Evaluate the long-term safety and tolerability of 274 mg ADS-5102 for LID in PD. Methods: In an ongoing, open-label safety study (NCT02202551), PD patients with LID received 274 mg of ADS-5102 once daily at bedtime. Patients were recruited from previous ADS-5102 trials. In addition, patients were enrolled who were ineligible for previous ADS-5102 trials due to previous implantation of deep-brain stimulation (DBS) devices. The primary outcome measure was safety assessed through adverse events (AEs). Efficacy was assessed using the Movement Disorder Society–Unified Parkinson’s Disease Rating Scale (MDS-UPDRS), Part IV and its subparts. Results: For this interim analysis, 223 patients received ADS-5102 for a mean duration of 348 (SD 182) days. The most common AEs included falls (25.1%), visual hallucinations (19.3%), peripheral edema (13.0%), and constipation (12.6%). Overall, 32 patients (14.3%) discontinued due to an AE. In patients receiving placebo in previous studies, the mean MDS-UPDRS, Part IV scores decreased by 3.4 points from baseline (n = 78) to week 8 and remained stable through week 64 (n = 21). In patients receiving ADS-5102 in previous studies, the mean baseline (n = 61) MDS-UPDRS, Part IV score was low due to the response to ADS-5102 in previous studies and remained stable through week 64 (total of 88 weeks; n = 21). The effect was primarily due to reduction in item 4.2 (functional impact of dyskinesia) and item 4.4 (functional impact of motor fluctuations). Conclusions: ADS-5102 was generally well tolerated in all groups, including DBS patients, and the safety profile was consistent with previous controlled studies. Long-term durability and tolerability were shown from the double-blind studies through participation in the open-label study up to 88 weeks.
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Affiliation(s)
| | - Rajesh Pahwa
- University of Kansas Medical Center, Kansas City, KS, USA
| | - Caroline M Tanner
- University of California San Francisco and San Francisco Veterans Affairs Medical Center, San Francisco, CA, USA
| | | | - Stuart H Isaacson
- Parkinson's Disease and Movement Disorders Center of Boca Raton, Boca Raton, FL, USA
| | - Reed Johnson
- Adamas Pharmaceuticals, Inc., Emeryville, CA, USA
| | - Larissa Felt
- Adamas Pharmaceuticals, Inc., Emeryville, CA, USA
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