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Predicting the future of ALS: the impact of demographic change and potential new treatments on the prevalence of ALS in the United Kingdom, 2020-2116

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posted on 2023-06-09, 17:36 authored by Alison Gowland, Sarah Opie-Martin, Kirsten M Scott, Ashley R Jones, Puja R Mehta, Christine J Batts, Cathy M Ellis, Nigel LeighNigel Leigh, Christopher E Shaw, Jemeen Sreedharan, Ammar Al-Chalabi
OBJECTIVE To model the effects of demographic change under various scenarios of possible future treatment developments in ALS. METHODS Patients diagnosed with ALS at the King's College Hospital Motor Nerve Clinic between 2004 and 2017, and living within the London boroughs of Lambeth, Southwark, and Lewisham (LSL), were included as incident cases. We also ascertained incident cases from the Canterbury region over the same period. Future incidence of ALS was estimated by applying the calculated age- and sex-specific incidence rates to the UK population projections from 2020 to 2116. The number of prevalent cases for each future year was estimated based on an established method. Assuming constant incidence, we modelled four possible future prevalence scenarios by altering the median disease duration for varying subsets of the population, to represent the impact of new treatments. RESULTS The total number of people newly diagnosed with ALS per year in the UK is projected to rise from a baseline of 1415 UK cases in 2010 to 1701 in 2020 and 2635 in 2116. Overall prevalence of ALS was predicted to increase from 8.58 per 100,000 persons in 2020 to 9.67 per 100,000 persons in 2116. Halting disease progression in patients with C9orf72 mutations would yield the greatest impact of the modelled treatment scenarios, increasing prevalence in the year 2066 from a baseline of 9.50 per 100,000 persons to 15.68 per 100,000 persons. CONCLUSIONS Future developments in treatment would combine with the effects of demographic change to result in more people living longer with ALS.

History

Publication status

  • Published

File Version

  • Published version

Journal

Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration

ISSN

2167-9223

Publisher

Taylor & Francis

Department affiliated with

  • BSMS Neuroscience Publications

Full text available

  • Yes

Peer reviewed?

  • Yes

Legacy Posted Date

2019-04-24

First Open Access (FOA) Date

2019-04-24

First Compliant Deposit (FCD) Date

2019-04-24

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