Eli Lilly (NYSE:LLY) has received breakthrough therapy designation from FDA for the investigational antibody donanemab for Alzheimer’s disease.
The company plans to file a biologics license application for the drug under the accelerated approval pathway later this year.
Like Biogen’s (NSDQ:BIIB) recently approved aducanumab, donanemab is a monoclonal antibody clearing sticky amyloid plaques. Donanemab clears a modified form of beta-amyloid known as N3pG.
The FDA’s decision to grant donanemab accelerated approval underscores the regulator’s support for the so-called “amyloid hypothesis,” which has divided researchers for decades.
In a Phase 2 study known as TRAILBLAZER-ALZ published in NEJM, donanemab recipients had a better composite score for cognitive function than placebo recipients after 76 weeks of treatment. The study authors, however, included that more substantial clinical data are needed to assess its safety and efficacy.
The compa…