Surveying Global Availability of Parkinson’s Disease Treatment
Article type: Research Article
Authors: Goh, Zhao H.K.a; 1 | Cheong, Julia L.Y.a; 1 | Marras, Connieb | Tanner, Caroline M.c | Kasten, Meiked | Korczyn, Amos D.e | Chahine, Lanaf | Lo, Raymondg | Noyce, Alastair J.h; * | on behalf of the Movement Disorders Society Epidemiology Study Group
Affiliations: [a] Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom | [b] Morton and Gloria Shulman Movement Disorders Centre and the Edmond J Safra Program in Parkinson’s Research, Toronto Western Hospital, Toronto, Ontario, Canada | [c] Department of Neurology, Weill Institute for Neuroscience University of California – San Francisco, and Parkinson’s Disease Research Education and Clinical Center, San Francisco Veteran’s Affairs Medical Center, San Francisco, CA, USA | [d] Institute of Neurogenetics, University of Lübeck, Germany | [e] Department of Neurology, Tel Aviv University, Israel | [f] Department of Neurology, University of Pittsburgh, Pittsburgh, PA, USA | [g] Memory and Aging Center, Department of Neurology, Buddhist Tzu Chi General Hospital, and Tzu Chi University, Hualien, Taiwan | [h] Preventive Neurology Unit, Wolfson Institute of Population Health, Queen Mary University of London, UK
Correspondence: [*] Correspondence to: Alastair J. Noyce, Preventive Neurology Unit, Wolfson Institute of Population Health, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK. Tel.: +44 207 882 5841; E-mail: [email protected].
Note: [1] These authors contributed equally to this work.
Abstract: Background:Parkinson’s disease (PD) is a debilitating neurodegenerative disease with both motor and non-motor manifestations. Available treatment reduces symptoms and is critical for improving quality of life. Treatment options include drugs, device-aided therapies, and non-pharmacological therapies. Complementary and alternative therapies (CATs) are also used in some countries. Objective:To examine the availability of PD treatment by country, and differences by national income as defined by the World Bank (high income countries (HICs), upper middle income countries (UMICs), lower middle income countries (LMICs) and low income countries (LICs)). Methods:This study was conducted by surveying International Parkinson and Movement Disorders Society members about availability of PD treatment. LMICs and LICs (LMICs/LICs) were analysed together. Results:There were 352 valid responses from 76 countries (41.5% from HICs, 30.4% from UMICs, and 28.1% from LMICs/LICs). Levodopa was widely available across all income groups (99%). Availability of other PD drugs decreased with national income. Availability of device-aided therapies decreased with national income (100% availability in HICs, 92.5% among UMICs, and 57.6% among LMICs/LICs). A similar trend was observed for CATs (37.0% availability in HICs, 31.8% in UMICs, and 19.2% in LMIC/LICs). Physiotherapy was the most available non-pharmacological therapy (> 90% respondents). Occupational therapy and SALT were less available in LMIC/LICs (49.5% and 55.6% respectively) compared to HICs (80.1% and 84.9% respectively). Conclusion:Our survey highlights significant discrepancies in availability of PD treatments between countries and income groups. This is concerning given the symptomatic benefit patients gain from treatment. Improving equitable access to PD treatment should be prioritised.
Keywords: Access, epidemiology, medication, Parkinson’s disease
DOI: 10.3233/JPD-213006
Journal: Journal of Parkinson's Disease, vol. 12, no. 3, pp. 1023-1034, 2022
