Eli Lilly logo is shown on one of the company's offices in San Diego, California, U.S., September 17, 2020.
Nearly all Alzheimer's drugs, including those targeting amyloid, have stumbled in trials.
Late-stage data on gantenerumab is expected by the fourth quarter, Roche said in a statement, saying it was encouraged by the lecanemab data.
Results of a key late-stage trial testing the drug are anticipated by mid-2023.
AMYLOID HYPOTHESISSome researchers, including Frederiksen, are cautiously optimistic about the impact the Biogen, Eisai data has on the likelihood of success for the other two drugs in development.