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Phase 3 Completed N=259 Quadruple-blind Treatment

A 12-week Extension Trial to Evaluate the Safety and Tolerability of Brexpiprazole in the Treatment of Subjects With Agitation Associated With Dementia of the Alzheimer's Type

Source: ClinicalTrials.gov NCT03594123 ↗
Enrolled (actual)
259
Serious AEs
2.3%
Results posted
Nov 2023
Primary outcomePrimary: Percentage of Participants With Treatment-emergent Adverse Events (TEAEs) by Severity — 20.9; 13.5; 9.2; 19.8 percentage of participants
◆ Published Evidence
Emerging
13citations · ~7 / year
Brexpiprazole for the treatment of agitation associated with dementia due to Alzheimer's disease: A 12-week, active-treatment, extension trial.
Journal of Alzheimer's disease : JAD · 2024 · Likely link

Summary

Active treatment extension study of the 331-14-213 trial, to assess the long-term safety and tolerability of oral brexpiprazole as treatment in adult participants with agitation associated with dementia of the Alzheimer's type (AAD).

Linked Publications (4)

  • Brexpiprazole for the treatment of agitation associated with dementia due to Alzheimer's disease: A 12-week, active-treatment, extension trial.
    Journal of Alzheimer's disease : JAD · 2024 · 13 citations · Likely link
  • Safety and Tolerability of Brexpiprazole in Participants with Agitation Associated with Dementia due to Alzheimer's Disease: Pooled Analysis of Three Randomized Trials and an Extension Trial.
    CNS drugs · 2025 · 6 citations · Open access · Likely link
  • Short-Term and Long-Term Safety Analyses of Brexpiprazole for Agitation Associated with Dementia due to Alzheimer's Disease: Timing and Duration of Adverse Events.
    Drug safety · 2026 · 0 citations · Open access · Likely link
  • Brexpiprazole side-effect profile in people with agitation in Alzheimer's dementia: a plain language summary.
    Current medical research and opinion · 2025 · 0 citations · Likely link

Outcome Measures

OutcomeResultp-value
PRIMARY
Percentage of Participants With Treatment-emergent Adverse Events (TEAEs) by Severity
20.9; 13.5; 9.2; 19.8; 3.1; 0

Eligibility Criteria

Inclusion Criteria

  • Participants must have participated in the 331-14-213 study.
  • Participants must have an identified caregiver who has contact, at a minimum of 2 hours per day, 4 days per week to describe the participant's symptoms and can observe participant behavior.

Exclusion Criteria

  • Participants with a substantial protocol violation during the course of their participation in the double-blind trial 331-14-213.
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT03594123) and the linked publication. Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.

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