Breakthrough Therapy Designation for 2 New Alzheimer’s Drugs

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FDA has granted breakthrough therapy designations for drugs from Lilly and Eisai/Biogen intended to treat Alzheimer’s disease. The designation was granted for Lilly’s donanemab, an investigational antibody therapy. The company says the designation is based on clinical evidence in the TRAILBLAZER-ALZ Phase 2 trial that studied the drug’s safety and efficacy in patients with early, symptomatic Alzheimer’s disease.

Lilly says it plans to submit a BLA for accelerated approval of donanemab later this year based on data from the Phase 2 trial.

Eisai and Biogen announced the designation was approved for their lecanemab, an anti-amyloid beta protofibril antibody intended to treat Alzheimer’s. The companies say the designation is based on the recently published results of a Phase 2b clinical study of 856 patients with mild cognitive impairment due to Alzheimer’s disease and mild Alzheimer’s disease with confirmed presence of amyloid pathology. They describe lecanemab as an investigational humanized monoclonal antibody that selectively binds to neutralize and eliminate soluble toxic amyloid-beta aggregates that are thought to contribute to the neurodegenerative process in Alzheimer’s disease.

On 6/7, FDA created a controversy with its accelerated approval of Biogen’s Aduhelm (aducanumab-avwa) to treat Alzheimer’s.

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