Alzheimer’s disease — the most common type of dementia in adults — is a progressive, multifaceted and devastating neurodegenerative disease in which significant changes occur in the brain that cause neurons to die over time. These changes include the accumulation and spread of pathological tau, an abnormal form of the tau protein. Pathological tau protein fragments containing the microtubule binding region (MTBR) appear to have a key role in the underlying pathology of Alzheimer’s disease. By neutralizing the spread and promoting the clearance of pathological tau, BMS-986446 aims to modify the underlying course of the disease with the ultimate goal of slowing or delaying disease progression.
“The FDA’s Fast Track Designation for BMS-986446 underscores the urgent need for innovative therapies for Alzheimer’s disease and recognizes the potential of this investigational anti-MTBR-tau antibody to meaningfully alter the trajectory of disease progression,” said Laura Gault, senior vice president, head of development, Neuroscience, Bristol Myers Squibb. “Bristol Myers Squibb is taking a continuum of care approach to Alzheimer’s disease, studying investigational medicines such as those targeting tau to change the course of the disease as well as several symptomatic treatment options that can address severe shifts in behavioral symptoms, such as psychosis and agitation, that significantly impact patients and their caregivers.”
In preclinical models, BMS-986446 demonstrated significant reductions in tau uptake and spread, protection against behavioral deficits and was localized with tau pathology in Alzheimer’s brain tissue. BMS-986446 was also shown to be safe and well tolerated across three dose cohorts in a Phase 1 study of healthy participants. The ongoing Phase 2 study is fully enrolled and includes several biomarkers of tau and amyloid-beta biology, as well as clinical outcome measures, to evaluate the impact of BMS-986446 on disease progression.
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