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http://dx.doi.org/10.1161/CIRCRESAHA.123.323341 | DOI Listing |
Background: Lecanemab is a humanized IgG1 monoclonal antibody that binds with high affinity to Aβ soluble protofibrils. In two clinical studies (phase 2, NCT01767311 and phase 3 ClarityAD, NCT03887455) in early Alzheimer's disease, lecanemab substantially reduced amyloid PET and significantly slowed clinical decline on multiple measures of cognition and function, including CDR-SB at 18 months. Models describing the change in amyloid PET and CDR-SB in response to lecanemab treatment were used to explore the impact of changing from the initial dosage regimen (10 mg/kg every 2 weeks [Q2W]) to a less intensive maintenance dosing regimen (10 mg/kg every 4 weeks [Q4W]) on clinical efficacy, and to explore the optimal duration of the initial dosing regimen.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
School of Pharmacy, Chapman University, Irvine, CA, USA.
Background: Although novel treatments for Alzheimer's disease (AD) have begun to show modest therapeutic effects, agents that target hallmark AD pathology and offer neuroprotection are desired. Erythropoietin (EPO) is a glycoprotein hormone with neuroprotective effects but is faced with challenges including limited brain uptake and increased hematopoietic side effects with long-term dosing. Therefore, EPO has been modified and bound to a chimeric transferrin receptor monoclonal antibody (cTfRMAb); the latter shuttles EPO past the blood-brain barrier (BBB) into brain parenchyma and reduces its plasma exposure and potential for side effects.
View Article and Find Full Text PDFBackground: DYRK1A overexpression, common in neurodegenerative diseases like Alzheimer's (AD), contributes to neurofibrillary tangles via Tau protein hyperphosphorylation and amyloid plaque formation, key AD hallmarks. Therefore, DYRK1A has been regarded as a novel target for neurodegenerative diseases. However, developing DYRK1A selective inhibitors has been a difficult challenge due to the highly conserved ATP-binding site of protein kinases, particularly among the CMGC family.
View Article and Find Full Text PDFBackground: Progranulin (GRN) plays a critical role in familial frontotemporal dementia (fFTD), where GRN haploinsufficiency leads to reduction in PGRN levels in the brain, resulting in degeneration of neurons in the frontal lobe of brain responsible for personality, language, and behavior. FTD is the most common dementia in people under 60. Sortilin (Sort1), expressed by neurons, endocytoses, and delivers PGRN rapidly to lysosomes for degradation.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Critical Path for Alzheimer's Disease (CPAD) Consortium, Critical Path institute, Tucson, AZ, USA.
Background: To help improve the Alzheimer's disease (AD) therapeutics research and development process, the Critical Path for Alzheimer's Disease (CPAD) Consortium at the Critical Path Institute (C-Path) provides a neutral framework for the drug development industry, regulatory agencies, academia, and patient advocacy organizations to collaborate. CPAD's extensive track record of developing regulatory-grade quantitative drug development tools motivates sponsors to share patient-level data and neuroimages from clinical trials. CPAD leverages these data and uses C-Path's core competencies in data management and standardization, quantitative modeling, and regulatory science to develop tools that help de-risk decision making in AD drug development.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!