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Poplawska-Domaszewicz K, Batzu L, Falup-Pecurariu C, Chaudhuri KR. Subcutaneous Levodopa: A New Engine for the Vintage Molecule. Neurol Ther 2024; 13:1055-1068. [PMID: 38874708 PMCID: PMC11263521 DOI: 10.1007/s40120-024-00635-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 05/24/2024] [Indexed: 06/15/2024] Open
Abstract
The management of Parkinson's disease (PD) continues to evolve with advancements in non-oral levodopa-based therapies aiming to provide continuous drug delivery (CDD). Such therapies address the challenges posed by the emergence of motor fluctuations, dyskinesias, and non-motor fluctuations (NMF) associated with oral levodopa administration and contributing to define the advanced stage of PD. The key focus of this review is placed on subcutaneous foslevodopa/foscarbidopa (Foslevodopa/foscarbidopa) infusion, showcasing its recent clinical availability and efficacy in providing continuous levodopa delivery. While providing an overview of the other non-oral levodopa-based CDD systems, such as intrajejunal levodopa-carbidopa infusion and levodopa-entacapone-carbidopa infusion, we highlight the current promising evidence for Foslevodopa/foscarbidopa to improve, for example, "on time" without troublesome dyskinesia and reducing "off time" in people with advanced PD. Additionally, Foslevodopa/foscarbidopa demonstrates potential in managing early morning off periods, sleep quality and other motor and non-motor symptoms. Moreover, other non-oral CDD options such as ND0612 and DIZ102/DIZ101 are discussed, with focus on their pharmacokinetics/pharmacodynamics, efficacy, and safety profiles. While these advancements present new therapeutic avenues, long-term observational studies are warranted to elucidate their impact on existing PD therapies. Overall, this review provides insights into the evolving landscape of non-oral CDD therapies and offers a pragmatic approach for their integration into clinical practice.
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Affiliation(s)
- Karolina Poplawska-Domaszewicz
- Department of Neurology, Poznan University of Medical Sciences, Poznan, Poland.
- Parkinson's Foundation Centre of Excellence, King's College Hospital, London, UK.
| | - Lucia Batzu
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, The Maurice Wohl Clinical Neuroscience Institute, King's College London, London, UK
- Parkinson's Foundation Centre of Excellence, King's College Hospital, London, UK
| | - Cristian Falup-Pecurariu
- Parkinson's Foundation Centre of Excellence, King's College Hospital, London, UK
- Department of Neurology, Faculty of Medicine, County Clinic Hospital, Transilvania University Brasov, Braşov, Romania
- Department of Neurology, Transilvania University Brasov, Braşov, Romania
| | - K Ray Chaudhuri
- Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, The Maurice Wohl Clinical Neuroscience Institute, King's College London, London, UK
- Parkinson's Foundation Centre of Excellence, King's College Hospital, London, UK
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Dean MN, Standaert DG. Levodopa infusion therapies for Parkinson disease. Curr Opin Neurol 2024; 37:409-413. [PMID: 38780079 DOI: 10.1097/wco.0000000000001277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
PURPOSE OF REVIEW to review recent progress in the development and use of continuous levodopa therapies in Parkinson disease (PD). RECENT FINDINGS Levodopa/Carbidopa intestinal gel (LCIG) is a continuous levodopa therapy which is widely used in the United States, Europe and other countries and is effective at reducing 'off' time. Recent work has shown that LCIG can be useful in managing dyskinesias and can improve nonmotor symptoms and quality of life. Several studies have shown good long-term effectiveness of LCIG. Recent data support the cost-effectiveness of this treatment strategy. Subcutaneous (SC) delivery of levodopa is a newer strategy that avoids the need for a surgically placed gastric tube. Two different products enabling SC delivery of levodopa are in development: ND0612 and foslevodopa/foscarbidopa. Both have recently been shown to reduce 'off' time in randomized, double-blind trials. Adverse effects of SC levodopa are primarily related to skin reactions at the infusion site. SUMMARY Continuous levodopa therapies can be used to treat Parkinson disease motor fluctuations that cannot be managed with standard oral therapies. They may also improve nonmotor symptoms, and improve overall quality of life in patients with advanced PD.
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Affiliation(s)
- Marissa N Dean
- Department of Neurology, Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
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Denham I, Maurin R, Deltetto I, Mikolaizak AS, Waern JB, Taylor C. Levodopa-based device-aided therapies for the treatment of advanced Parkinson's disease: a social return on investment analysis. Front Public Health 2024; 12:1351808. [PMID: 38979043 PMCID: PMC11228815 DOI: 10.3389/fpubh.2024.1351808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 05/07/2024] [Indexed: 07/10/2024] Open
Abstract
Introduction Parkinson's disease (PD) is an incurable, progressive, neurodegenerative disorder. As PD advances and symptoms progress, patients become increasingly dependent on family and carers. Traditional cost-effectiveness analyses (CEA) only consider patient and payer-related outcomes, failing to acknowledge impacts on families, carers, and broader society. This novel Social Return on Investment (SROI) analysis aimed to evaluate the broader impact created by improving access to levodopa (LD) device-aided therapies (DATs) for people living with advanced PD (aPD) in Australia. Methods A forecast SROI analysis over a three-year time horizon was conducted. People living with aPD and their families were recruited for qualitative interviews or a quantitative survey. Secondary research and clinical trial data was used to supplement the primary research. Outcomes were valued and assessed in a SROI value map in Microsoft Excel™. Financial proxies were assigned to each final outcome based on willingness-to-pay, economic valuation, and replacement value. Treatment cost inputs were sourced from Pharmaceutical Benefits Schedule (PBS) and Medicare Benefits Scheme (MBS) published prices. Results Twenty-four interviews were conducted, and 55 survey responses were received. For every $1 invested in access to LD-based DATs in Australia, an estimated $1.79 of social value is created. Over 3 years, it was estimated $277.16 million will be invested and $406.77 million of social return will be created. This value is shared between people living with aPD (27%), their partners (22%), children (36%), and the Australian Government (15%). Most of the value created is social and emotional in nature, including reduced worry, increased connection to family and friends, and increased hope for the future. Discussion Investment in LD-based DATs is expected to generate a positive social return. Over 50% of the value is created for the partners and children of people living with aPD. This value would not be captured in traditional CEA. The SROI methodology highlights the importance of investing in aPD treatment, capturing the social value created by improved access to LD-based DATs.
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Affiliation(s)
| | | | | | | | | | - Colman Taylor
- HTANALYSTS Pty Ltd., Sydney, NSW, Australia
- The George Institute for Global Health, Sydney, NSW, Australia
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Chaudhuri KR, Batzu L. Can Continuous Levodopa Delivery Be Achieved in the Absence of Intrajejunal Levodopa Infusion? Implications for India and Underserved Countries. Mov Disord Clin Pract 2024; 11:21-29. [PMID: 38291849 PMCID: PMC10828610 DOI: 10.1002/mdc3.13915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/24/2023] [Accepted: 10/12/2023] [Indexed: 02/01/2024] Open
Affiliation(s)
- K. Ray Chaudhuri
- Department of Basic and Clinical NeuroscienceInstitute of Psychiatry, Psychology, and Neuroscience, King's College LondonLondonUK
- Parkinson's Foundation Centre of Excellence, King's College HospitalLondonUK
| | - Lucia Batzu
- Department of Basic and Clinical NeuroscienceInstitute of Psychiatry, Psychology, and Neuroscience, King's College LondonLondonUK
- Parkinson's Foundation Centre of Excellence, King's College HospitalLondonUK
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Pahwa R, Merola A, Soileau M, Alobaidi A, Pickard AS, Kandukuri PL, Bao Y, Strezewski J, Oddsdottir J, Xu W, Standaert D. Cost-Effectiveness of Carbidopa-Levodopa Enteral Suspension for Advanced Parkinson's Disease in the United States. Mov Disord 2023; 38:2308-2312. [PMID: 37877478 DOI: 10.1002/mds.29624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 08/22/2023] [Accepted: 09/18/2023] [Indexed: 10/26/2023] Open
Abstract
BACKGROUND Carbidopa/levodopa enteral suspension (CLES) is indicated for the treatment of advanced Parkinson's disease (aPD) with severe motor fluctuations. OBJECTIVE To determine the cost, quality-adjusted life years (QALY), and cost-effectiveness of CLES compared to the standard-of-care (SoC) for aPD patients in the United States (US), using real-world data. METHODS A published Markov model, comprising of 25 health states and a death state, (defined by a combination of the Hoehn and Yahr scale and waking time spent in OFF-time) was adapted to estimate the benefits for CLES versus oral SoC over a patient's lifetime in the US healthcare setting. Clinical inputs were based on a clinical trial and a registry study; utility inputs were sourced from the Adelphi-Disease Specific Programmes. RESULTS CLES compared to SoC was associated with incremental costs ($1,031,791 vs. $1,025,180) and QALY gain (4.61 vs. 3.76), resulting in an incremental cost-effectiveness ratio of $7711/QALY. CONCLUSION CLES is a cost-effective treatment for aPD patients with medication resistant motor fluctuations. © 2023 AbbVie, Inc and The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Rajesh Pahwa
- University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Aristide Merola
- Ohio State University, Wexner Medical Center, Columbus, Ohio, USA
| | | | | | | | | | - Yanjun Bao
- AbbVie Inc., North Chicago, Illinois, USA
| | | | | | | | - David Standaert
- Department of Neurology, University of Alabama at Birmingham, Birmingham, Alabama, USA
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Tsamis KI, Odin P, Antonini A, Reichmann H, Konitsiotis S. A Paradigm Shift in the Management of Patients with Parkinson's Disease. NEURODEGENER DIS 2023; 23:13-19. [PMID: 37913759 PMCID: PMC10659004 DOI: 10.1159/000533798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 08/23/2023] [Indexed: 11/03/2023] Open
Abstract
BACKGROUND Technological evolution leads to the constant enhancement of monitoring systems and recording symptoms of diverse disorders. SUMMARY For Parkinson's disease, wearable devices empowered with machine learning analysis are the main modules for objective measurements. Software and hardware improvements have led to the development of reliable systems that can detect symptoms accurately and be implicated in the follow-up and treatment decisions. KEY MESSAGES Among many different devices developed so far, the most promising ones are those that can record symptoms from all extremities and the trunk, in the home environment during the activities of daily living, assess gait impairment accurately, and be suitable for a long-term follow-up of the patients. Such wearable systems pave the way for a paradigm shift in the management of patients with Parkinson's disease.
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Affiliation(s)
- Konstantinos I. Tsamis
- Department of Physiology, Faculty of Medicine, School of Health Sciences, University of Ioannina, Ioannina, Greece
- Department of Neurology, University Hospital of Ioannina, University of Ioannina, Ioannina, Greece
| | - Per Odin
- Division of Neurology, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Angelo Antonini
- Parkinson and Movement Disorders Unit, Study Center for Neurodegeneration CESNE, Department of Neuroscience, University of Padova, Padova, Italy
| | - Heinz Reichmann
- Department of Neurology, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Spyridon Konitsiotis
- Department of Neurology, University Hospital of Ioannina, University of Ioannina, Ioannina, Greece
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Dams J, Zapp JJ, König HH. Modelling the Cost Effectiveness of Treatments for Parkinson's Disease: An Updated Methodological Review. PHARMACOECONOMICS 2023; 41:1205-1228. [PMID: 37344724 PMCID: PMC10492764 DOI: 10.1007/s40273-023-01289-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/28/2023] [Indexed: 06/23/2023]
Abstract
OBJECTIVE This article systematically reviewed the methodological quality of modelling approaches for economic evaluations of the treatment of motor symptoms in Parkinson's disease in studies published after 2010. METHODS A systematic literature search was undertaken using PubMed, EconLit, the Cochrane Database of Systematic Reviews, National Health Service Economic Evaluation Database and Health Technology Assessment databases of the UK National Health Service Centre for Review and Dissemination (March 2010 to July 2022). Quality was assessed using a checklist from the German Scientific Working Group. RESULTS A total of 20 studies were evaluated, with the majority based on Markov models (n = 18). Studies assessed the cost effectiveness of medical (n = 12) or surgical (n = 8) treatment, and included costs from a payer or healthcare provider's perspective (n = 17). Furthermore, all studies included quality-adjusted life-years as an effect measure. In the quality assessment of the literature, a mean score of 42.1 points (out of 56 points) on the checklist of the German Scientific Working Group was achieved. Seventeen studies concluded the intervention under study was (likely) cost effective. No intervention was classified as cost ineffective. CONCLUSIONS The quality of economic evaluation models in Parkinson's disease has improved in terms of calculating cost and transition parameters, as well as carrying out probabilistic sensitivity analyses, compared with the published literature of previous systematic reviews up to 2010. However, there is still potential for further development in terms of the integration of non-motor complications and treatment changes, the transparent presentation of parameter estimates, as well as conducting sensitivity analyses and validations to support the interpretation of results.
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Affiliation(s)
- Judith Dams
- Department of Health Economics and Health Services Research, University Medical Center Hamburg-Eppendorf, Hamburg Center for Health Economics, Martinistraße 52, 20246, Hamburg, Germany.
| | - Johann-Jacob Zapp
- Department of Health Economics and Health Services Research, University Medical Center Hamburg-Eppendorf, Hamburg Center for Health Economics, Martinistraße 52, 20246, Hamburg, Germany
| | - Hans-Helmut König
- Department of Health Economics and Health Services Research, University Medical Center Hamburg-Eppendorf, Hamburg Center for Health Economics, Martinistraße 52, 20246, Hamburg, Germany
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Raj S, Sarvankar R, Filipe L, Benedetto V, Mason N, Dawber J, Hill J, Clegg A. Cost-effectiveness of Levodopa-Carbidopa Intestinal Gel in treating people with Advanced Parkinson's disease. BRITISH JOURNAL OF NEUROSCIENCE NURSING 2023; 19:140-144. [PMID: 38813118 PMCID: PMC7616015 DOI: 10.12968/bjnn.2023.19.4.140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Advanced Parkinson's disease affects patients with existing Parkinson's disease by further deteriorating their physical and cognitive functions. In this commentary we critically assess an economic evaluation which compared the cost-effectiveness of levodopa/carbidopa intestinal gel against standard of care in treating patients with Advanced Parkinson's disease. While the economic evaluation indicated that levodopa/carbidopa intestinal gel could be cost-effective within the UK parameters, we highlight important limitations related to its design, modelling and analysis. Future research should consider the incorporation of a separate arm dedicated to the re-infusion of apomorphine on eligible Advanced Parkinson's disease patients, a wider set of levodopa/carbidopa intestinal gel adverse events and related costs, and a sub-group analysis on different socio-economic strata.
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Affiliation(s)
- Sonia Raj
- Lancashire Teaching Hospitals NHS Foundation Trust
| | | | - Luís Filipe
- Faculty of Health and Medicine, Lancaster University
- NIHR Applied Research Collaboration North West Coast (ARC NWC), Methodological Innovation, Development, Adaptation and Support (MIDAS) Theme
| | - Valerio Benedetto
- NIHR Applied Research Collaboration North West Coast (ARC NWC), Methodological Innovation, Development, Adaptation and Support (MIDAS) Theme
- Applied Health Research hub, University of Central Lancashire
| | - Nicola Mason
- Lancashire Teaching Hospitals NHS Foundation Trust
| | | | - James Hill
- NIHR Applied Research Collaboration North West Coast (ARC NWC), Methodological Innovation, Development, Adaptation and Support (MIDAS) Theme
- Applied Health Research hub, University of Central Lancashire
| | - Andrew Clegg
- NIHR Applied Research Collaboration North West Coast (ARC NWC), Methodological Innovation, Development, Adaptation and Support (MIDAS) Theme
- Applied Health Research hub, University of Central Lancashire
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Levodopa-carbidopa intestinal gel in advanced Parkinson's disease: long-term results from COSMOS. J Neurol 2023; 270:2765-2775. [PMID: 36802031 PMCID: PMC10130122 DOI: 10.1007/s00415-023-11615-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/17/2023] [Accepted: 02/07/2023] [Indexed: 02/21/2023]
Abstract
BACKGROUND While immediate benefits of levodopa-carbidopa intestinal gel (LCIG) are evident in patients with Parkinson's disease (PD), long-term LCIG effects require further study. OBJECTIVES We explored long-term LCIG on motor symptoms, nonmotor symptoms (NMS), and LCIG treatment settings in patients with advanced PD (APD). METHODS Data were obtained (medical records and patient visit) from COSMOS, a multinational, retrospective, cross-sectional post-marketing observational study in patients with APD. Patients were stratified into 5 groups based on LCIG treatment duration at the patient visit, from 1-2 to > 5 years LCIG. Between-group differences were assessed for changes from baseline in LCIG settings, motor symptoms, NMS, add-on medications, and safety. RESULTS Out of 387 patients, the number of patients per LCIG group was: > 1- ≤ 2 years LCIG (n = 156); > 2- ≤ 3 years LCIG (n = 80); > 3- ≤ 4 years LCIG (n = 61); > 4- ≤ 5 years LCIG (n = 30); > 5 years LCIG (n = 60). Baseline values were similar; data reported are changes from the baseline. There were reductions in "off" time, dyskinesia duration, and severity across LCIG groups. Prevalence, severity, and frequency of many individual motor symptoms and some NMS were reduced amongst all LCIG groups, with few differences between groups. Doses for LCIG, LEDD and LEDD for add-on medications were similar across groups both at LCIG initiation and patient visit. Adverse events were similar across all LCIG groups and consistent with the established safety profile of LCIG. CONCLUSIONS LCIG may provide sustained, long-term symptom control, while potentially avoiding increases in add-on medication dosages. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT03362879. Number and date: P16-831, November 30, 2017.
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