Acumen Pharmaceuticals, Inc. is a clinical-stage biopharmaceutical company, which engages and develops medicines and diagnostics for Alzheimer's disease. The company is headquartered in Newton, Massachusetts and currently employs 61 full-time employees. The company went IPO on 2021-07-01. The firm is engaged in developing a disease-modifying approach to target underlying cause of Alzheimer's disease (AD). The firm is focused on advancing a targeted immunotherapy drug candidate, sabirnetug (ACU193), in its Phase II ALTITUDE-AD clinical trial following Phase I results in early AD patients (patients with mild cognitive impairment or mild dementia due to AD). Sabirnetug is a recombinant humanized immunoglobulin gamma 2 (IgG2), monoclonal antibody (mAb) that selectively targets the anti-amyloid-beta oligomer, has demonstrated functional and protective effects in in-vitro assays, and has demonstrated in-vivo safety and pharmacologic activity in multiple animal species including transgenic mouse models for AD. The firm is developing sabirnetug for IV administration once every four weeks (Q4W) for the treatment of early AD, and it has developing sabirnetug for subcutaneous administration.