Story highlights Clinton will announce her plan in Iowa

The Democratic front-runner consulted with leading experts

(CNN) Hillary Clinton will roll out a plan to combat Alzheimer's disease in Fairfield, Iowa, on Tuesday, pledging to spend $2 billion annually to fight the disease and research a cure, according to a Clinton aide.

Clinton, who aides said consulted with leading physicians and scientists to develop the plan, will set a goal of making a cure of Alzheimer's a reality by 2025.

"We owe it to the millions of families who stay up at night worrying about their loved ones afflicted by this terrible disease and facing the hard reality of the long goodbye to make research investments that will prevent, effectively treat and make a cure possible by 2025," Clinton said.

"The best scientific minds tell us we have a real chance to make groundbreaking progress on curing this disease and relieving the pain so many families feel every day. My plan will set us on that course," she added.

The proposal would be paid for by tax reform proposals and other savings, the aide added.

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