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http://dx.doi.org/10.4093/dmj.2017.41.4.324 | 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 PDFBackground: TREM2 is a lipid-sensing receptor expressed by microglial sub-populations within neuropathological microenvironments, whose downstream signaling promotes microglial survival, plasticity, and migration. Multiple loss-of-function variants strongly implicate TREM2 as a key regulator of Alzheimer's disease (AD) risk. Accordingly, TREM2 antibodies are currently in development to evaluate the therapeutic potential of TREM2 agonism in neurodegenerative diseases.
View Article and Find Full Text PDFBackground: Patients with Alzheimer's disease (AD) often experience burdensome neuropsychiatric symptoms, including agitation which occurs in both home and long-term care (LTC) facilities, and is associated with substantial increases in caregiver burden and LTC placements. AXS-05 (45-mg dextromethorphan/105-mg bupropion), a novel, oral NMDA receptor antagonist and sigma-1 receptor agonist, approved by the FDA for major depressive disorder, is being investigated for treatment of AD agitation (ADA). AXS-05 has been evaluated in 2 randomized, double-blind studies: Phase 2 ADVANCE-1 (NCT03226522); Phase 3 ACCORD (NCT04797715).
View Article and Find Full Text PDFAlzheimers Dement
December 2024
School of Medicine, Johns Hopkins University, and Johns Hopkins Bayview Medical Center, Baltimore, MD, USA.
Background: Agitation is a common and disabling symptom of Alzheimer's dementia (AD). Pharmacological treatments are recommended if agitation is not responsive to psychosocial intervention. Citalopram was effective in treating agitation in AD but was associated with cognitive and cardiac risks linked to its R- but not S-enantiomer.
View Article and Find Full Text PDFBackground: TREM2 is a lipid-sensing receptor expressed by microglial sub-populations within neuropathological microenvironments, whose downstream signaling promotes microglial survival, plasticity, and migration. Multiple loss-of-function variants strongly implicate TREM2 as a key regulator of Alzheimer's disease (AD) risk. Accordingly, TREM2 antibodies are currently in development to evaluate the therapeutic potential of TREM2 agonism in neurodegenerative diseases.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!