Alzheimer’s Disease
Alzheimer’s disease is the most common cause of dementia that causes memory, thinking, and behavior problems.
Alzheimer’s disease is the most common cause of dementia that causes memory, thinking, and behavior problems.
At the earliest stages, Alzheimer’s disease commonly results in difficulty in remembering new information. As the disease progresses, it often leads to communication problems, behavior change, and inability to do everyday tasks. Over time, independence is lost, and complications from the disease can result in death.
Alzheimer’s disease is the 7th leading cause of death in the United States, with more than 6 million Americans living with Alzheimer’s disease, making it the most common neurodegenerative disorder. There is an urgent need for therapies that slow the progression and ultimately prevent Alzheimer’s disease to address this global healthcare crisis.
It is believed two different proteins – Aβ (amyloid beta) and tau – are primary contributors to Alzheimer’s disease pathology. Misfolded Aβ builds up to form plaques between nerve cells in the brain. Tangles of twisted tau fibrils spread from cell to cell and cause build up inside the neurons. People with Alzheimer’s disease develop these pathological hallmarks of the disease in a predictable pattern as the disease progresses, starting in the centers of the brain responsible for memory and spreading out from there to other regions of the brain.
Our team leverages this foundational knowledge along with insights gained over the last 20 years of drug development in the Alzheimer’s disease space to develop new approaches to address this complex disease.
Prothena’s Alzheimer’s disease portfolio spans next-generation antibody immunotherapy, small molecule and vaccine approaches, geared toward building upon current therapies to advance the treatment paradigm through increased patient access and an enhanced patient experience.
Prothena is investigating PRX012 in the Phase 1 ASCENT clinical trials for the treatment of Alzheimer’s disease. PRX012 is a potential best-in-class, single-injection once-monthly antibody delivered subcutaneously that targets a key epitope at the N-terminus of Aβ with high binding potency. PRX012 has been granted Fast Track designation by the U.S. Food and Drug Administration (FDA).
BMS-986446 is being investigated in an ongoing Phase 2 clinical trial for the treatment of Alzheimer’s disease by our partner Bristol Myers Squibb. BMS-986446 is a potential best-in-class antibody that specifically targets a key epitope within the microtubule binding region (MTBR) of tau, a protein implicated in the causal pathophysiology of Alzheimer’s disease. Bristol Myers Squibb is responsible for all development, manufacturing, and commercialization.
Prothena is also investigating PRX123, a potential first in class dual Aβ/tau vaccine designed for the treatment and prevention of Alzheimer’s disease. PRX123 is a dual-target vaccine targeting key epitopes within the N-terminus of Aβ and MTBR-tau designed to promote amyloid clearance and block the transmission of pathogenic tau. The FDA cleared the investigational new drug (IND) application and granted Fast Track designation for PRX123.
These resources are intended to provide information to US healthcare
professionals about Prothena’s investigational drug candidates.
Learn more about ASCENT clinical trial design