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WASHINGTON: US pharmaceutical giant Eli Lilly on Wednesday announced its experimental Alzheimer’s drug significantly slowed cognitive and functional decline, results hailed as “remarkable” by experts despite some patients experiencing serious side effects.
In an analysis of nearly 1,200 people in the early stages of the disease, donanemab slowed the progression of symptoms by 35 per cent over a period of 18 months compared to placebo.
This was measured by cognition and their ability to carry out daily tasks like managing finances, driving, engaging in hobbies and conversing about current events in a standardised index called the Integrated Alzheimer’s Disease Rating Scale (iADRS).
Side effects included temporary swelling in parts of the brain, which occurred in almost a quarter of the treated patients, as well as microhemorrhages that occurred in 31pc of patients on the treatment arm and 14pc of patients in the placebo group.
Two participants’ deaths were attributed to the side effects, while a third might have also died from the treatment.
Nonetheless, the data was widely praised by independent experts, who said donanemab had the potential, if approved, to significantly improve the lives of people suffering from the most common form of dementia.
The news comes after the US approved another Alzheimer’s drug in January, Biogen and Eisai’s lecanemab, which slowed the rate of cognitive decline by 27pc and was also declared a blockbuster by experts.
Biogen and Eisai had also developed aducanumab, known by the trade Aduhelm, which was given US approval in 2021, though that decision was mired in controversy and led to a damning report by Congress.