Prothena rolls out preclinical data for anti-amyloid Alzheimer's candidate to rival Biogen's Aduhelm

The build up of amyloid-beta in the brain has been a prime target of Alzheimer's drug developers, including Biogen with its controversial new drug Aduhelm, which was granted the go-ahead from the FDA in early June. Now Biogen competitor Prothena says its own monoclonal antibody binds to amyloid-beta with about 11 times more strength than Aduhelm (aducanumab).