The context you need, when you need it

When news breaks, you need to understand what actually matters — and what to do about it. At Vox, our mission to help you make sense of the world has never been more vital. But we can’t do it on our own.

We rely on readers like you to fund our journalism. Will you support our work and become a Vox Member today?

Believe the hype: A cure for Alzheimer’s is in reach

Treatment is getting better — fast. Here’s how we can all benefit.

Every day it seems scientists are making breakthroughs in Alzheimer’s disease.

New treatments that actually slow the disease’s progression — lecanemab and donanemab — have finally appeared on pharmacy shelves in the past few years, delivering real-world results for patients and their families. New blood tests promise to identify at-risk patients earlier in their lives, giving them the chance to make lifestyle changes and potentially start treatment to stave off symptoms.

The media and wellness influencers are always reporting on new diets, workouts, or hobbies that can combat dementia. Just last month, there was even a report out of China about an experimental brain surgery that allegedly reverses the symptoms of Alzheimer’s disease — the Holy Grail that researchers have been pursuing for generations.

A new era for Alzheimer’s treatment begins

But hype has outpaced the science of treating Alzheimer’s disease before. Promising treatments have gotten a lot of attention before only to fizzle out a short time later. Less than a decade ago, many scientists were wondering whether we had the theory of Alzheimer’s disease completely wrong.

For those of us who don’t work in the field, that confusing history can make it hard to make sense of these recent developments. It sounds like we are entering a new age for Alzheimer’s prevention and treatment — but are we actually? And, if we are, how can people benefit from it?

I called a couple of leading experts to find out.

Here’s the good news: They say scientists are genuinely shifting the paradigm for treating, detecting, and ultimately preventing Alzheimer’s disease. The two drugs on the market can actually slow down cognitive decline for many patients, something that had been out of reach for decades. And more treatments are coming.

“Diagnosis and treatment of Alzheimer’s has changed in a way that is revolutionary compared to, say, four or five years ago,” said Dr. Jason Karlawish, co-director of the Penn Memory Center.

At the clinic where he sees patients, “people are feeling a sense of hope and promise,” he said.

For a long time, the science on Alzheimer’s disease felt stuck. Now it’s moving. There’s only one thing that could stop it, according to experts: the Trump administration’s anti-science agenda.

Scientists are getting closer to game-changing Alzheimer’s treatments

In 2023, the approval of two drugs transformed the landscape of Alzheimer’s care: lecanemab (sold as Leqembi) and donanemab (sold as Kisunla), two IV treatments that target amyloid plaque in the brain of a person with Alzheimer’s. Before these two drugs — and the approval of aducanemab, a similar but less effective and riskier treatment — it had been decades since the last new Alzheimer’s treatment had come onto the market.

They are not perfect treatments. They are effective only for people with mild cognitive impairment, not more advanced stages of the disease. They can only slow the progression of Alzheimer’s for those people, not stop or reverse it. And they do come with the risk of serious side effects, particularly brain bleeds.

“The good news is, we have these two drugs that can help people,”........

© Vox