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The EU’s medicines regulator has declined to approve Eli Lilly’s new Alzheimer’s drug, deciding the risks of serious and potentially fatal side effects outweigh the benefits of slowing progression of the disease.
A European Medicines Agency committee on Friday recommended that marketing authorisation for donanemab, known by the brand name Kisunla, be refused. The drug has been approved and is sold in the US.
The EMA committee said that brain swelling and bleeding occurred more often in patients taking the drug, than for those on a placebo. It said 1.6 per cent of people treated with Kisunla experienced serious side effects, known as amyloid‑related imaging abnormalities, which resulted in three deaths.
The regulator’s rejection follows its decision in July last year not to approve lecanemab, known by the brand name Leqembi, an Alzheimer’s drug developed by US biotech Biogen and Japanese drugmaker Eisai. It is also approved and sold in the US.
But in November, the committee recommended that lecanemab be used in a limited population of patients with early Alzheimer’s who had only one or no copies of the ApoE4 gene. These characteristics make them less likely to experience the brain swelling side effects.
The EMA committee said Eli Lilly proposed restricting donanemab’s approval to people who do not have this gene. But it said the benefits still did not outweigh the risks for this group.