Neurology and therapy · 2026
Brexpiprazole for Individual Agitation Symptoms in Alzheimer's Dementia: A Caregiver-Centered Post Hoc Analysis.
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Porsteinsson Anton P, Chumki Sanjeda R, Palma Anton M, Zhang Zhen, Wang David, Such Pedro, Montano C Brendan
Аннотация
INTRODUCTION: People with Alzheimer's dementia commonly experience agitation symptoms, which are distressing to caregivers and can influence long-term care decisions. The aim of this exploratory post hoc analysis was to test the hypothesis that brexpiprazole can improve individual agitation symptoms over 12 and 24 weeks, including symptoms that caregivers find the most distressing.
METHODS: Data were included from two phase 3, 12-week, randomized (brexpiprazole or placebo), double-blind trials and a phase 3, 12-week, brexpiprazole-treatment extension trial. Participants had Alzheimer's dementia with agitation, and lived at home or in long-term care. The frequency of 29 agitation symptoms over 12 and 24 weeks was assessed using Cohen-Mansfield Agitation Inventory (CMAI) item scores. The focus of this post hoc analysis was the 11 CMAI agitation symptoms that caregivers found the most distressing in a prior survey.
RESULTS: Among 610 participants (median age 74 years, 55.5% female, 44.5% male), each of the 11 most-distressing agitation symptoms reduced in frequency from baseline to Week 12, with further improvements to Week 24 (n = 159). Improvements over 12 weeks were numerically greater with brexpiprazole 2 or 3 mg/day (n = 363) compared with placebo (n = 247) on 9 of 11 symptoms: cursing or verbal aggression, spitting, repetitive sentences or questions, hitting, constant unwarranted requests for attention/help, trying to get to a different place, pacing or aimless wandering, grabbing onto people or things, and kicking. Each of the 18 other agitation symptoms (beyond the most distressing) also reduced in frequency. After 24 weeks, 15 of 29 agitation symptoms occurred less than once a week.
CONCLUSION: Brexpiprazole was associated with improvement in a range of agitation symptoms in people with Alzheimer's dementia, including those that are the most distressing to caregivers. These exploratory results suggest that brexpiprazole may improve the specific agitation symptoms that can have the biggest impact on the caregiver experience.
TRIAL REGISTRATION: ClinicalTrials.gov identifiers: NCT01862640, NCT03548584, NCT03594123.
METHODS: Data were included from two phase 3, 12-week, randomized (brexpiprazole or placebo), double-blind trials and a phase 3, 12-week, brexpiprazole-treatment extension trial. Participants had Alzheimer's dementia with agitation, and lived at home or in long-term care. The frequency of 29 agitation symptoms over 12 and 24 weeks was assessed using Cohen-Mansfield Agitation Inventory (CMAI) item scores. The focus of this post hoc analysis was the 11 CMAI agitation symptoms that caregivers found the most distressing in a prior survey.
RESULTS: Among 610 participants (median age 74 years, 55.5% female, 44.5% male), each of the 11 most-distressing agitation symptoms reduced in frequency from baseline to Week 12, with further improvements to Week 24 (n = 159). Improvements over 12 weeks were numerically greater with brexpiprazole 2 or 3 mg/day (n = 363) compared with placebo (n = 247) on 9 of 11 symptoms: cursing or verbal aggression, spitting, repetitive sentences or questions, hitting, constant unwarranted requests for attention/help, trying to get to a different place, pacing or aimless wandering, grabbing onto people or things, and kicking. Each of the 18 other agitation symptoms (beyond the most distressing) also reduced in frequency. After 24 weeks, 15 of 29 agitation symptoms occurred less than once a week.
CONCLUSION: Brexpiprazole was associated with improvement in a range of agitation symptoms in people with Alzheimer's dementia, including those that are the most distressing to caregivers. These exploratory results suggest that brexpiprazole may improve the specific agitation symptoms that can have the biggest impact on the caregiver experience.
TRIAL REGISTRATION: ClinicalTrials.gov identifiers: NCT01862640, NCT03548584, NCT03594123.