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How Much Progress Has Been Made Against Alzheimer's Disease?

Eli Lilly and Biogen's drugs slow Alzheimer's progression but face cost and approval challenges; about 70% of dementia cases are Alzheimer's, a leading elderly death cause.

  • Two new Alzheimer’s treatments, donanemab and lecanemab , and a new blood test have recently emerged amid ongoing research and debate.
  • This development follows decades of limited progress, with disputes over diagnosis methods and mixed reception from national health regulators worldwide.
  • The blood test, authorized in the US since May but not yet in Europe, offers a less invasive alternative to lumbar punctures for detecting biological markers.
  • Though the treatments slow disease progression modestly and mainly help early-stage patients, they carry serious risks such as brain haemorrhages, and reimbursement is limited.
  • Experts highlight nearly half of Alzheimer’s cases link to lifestyle factors, and long-term trials remain necessary to prove effectiveness or prevention potential conclusively.
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How much progress has been made against Alzheimer's disease?

After decades of unsuccessful research, two new drugs and a pioneering blood test have recently given Alzheimer's patients hope of fighting back against the debilitating disease -- but questions remain about their effectiveness.

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The Indiana Gazette Online broke the news in Indiana, United States on Saturday, September 20, 2025.
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