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According to Alzheimer's Disease International, more than 55 million people worldwide will have Alzheimer's disease by 2020. This figure will nearly double every 20 years, reaching 78 million in 2030 and 139 million in 2050. The WHO Global Status Report for 2021 estimated the yearly global cost of dementia to be more than USD 1.3 trillion, with a projected increase to USD 2.8 trillion by 2030. To date most drugs developed to treat Alzheimer's disease have failed, largely because they target wrong biomarkers and individuals already exhibiting signs of the disease. Once symptoms appear, however, many brain cells responsible for memory and cognition are likely already damaged and beyond repair. Professor Shai Rahimipour in the Chemistry Department at Bar-Ilan University in Israel has pioneered a different approach utilizing theranostics to pinpoint and treat the earliest, pre-symptomatic signs of Alzheimer's disease. Showing promise in stopping progression of the disease before onset of irreversible brain cell damage, Rahimipour's groundbreaking approach has garnered significant attention in the scientific world.

The first big breakthrough in 30 years of Alzheimer's research is providing momentum for clinical trials of "cocktail" treatments targeting the two hallmark proteins associated with the mind-robbing disease, according to interviews with researchers and pharmaceutical executives. Drugmakers Eisai and Biogen reported in September that their therapy lecanemab could slow progress of the disease by 27% over 18 months compared with a placebo. The finding validates the theory that clearing the amyloid protein that forms clumps in the brains of Alzheimer's patients could slow or halt the disease and has strengthened the support from some scientists for simultaneously targeting another notorious protein linked to Alzheimer's: tau. Eisai and Biogen are scheduled to present full data from their lecanemab study on Tuesday at the Clinical Trials on Alzheimer's Disease conference in San Francisco. The U.S. Food and Drug Administration is expected to make a decision by early January on the companies' application for accelerated approval. If approved on an accelerated basis, the companies said they would immediately apply for full U.S. regulatory approval which could help secure Medicare coverage.