Alzheimer’s disease (AD) is a disorder of brain which progressively weakens the cognitive function. It is occur due to formation of β-amyloid plaques, neurofibrillary tangles, and degeneration of cholinergic neurotransmitter. There is no effective treatment capable of slowing down disease progression, current pharmacotherapy for AD only provides symptomatic relief and limited improvement in cognitive functions. Many molecules have been explored that show promising outcomes in AD therapy and can regulate cellular survival through different pathways. Present study involves current directions in the search for novel, potentially effective agents for the treatment of AD, as well as selected promising treatment strategies. These include agents acting upon the β-amyloid, such as vaccines, antibodies and inhibitors or modulators of γ- and β-secretase; agents directed against the tau protein. Current clinical trials with Aβ antibodies (solanezumab, bapineuzumab, and crenezumab) seem to be promising, while vaccines against the tau protein (AADvac1) are now in primary-stage trials. Most phase II clinical trials ending with a positive result do not succeed in phase III, often due to serious side effects or lack of therapeutic efficacy but Abucanumab (marketed as Aduhelm) now approved by USFDA in 2021 for the treatment of AD.

No abstract