NCT03594123

Brief 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).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
259

participants targeted

Target at P50-P75 for phase_3

Timeline
Completed

Started Oct 2018

Typical duration for phase_3

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 11, 2018

Completed
9 days until next milestone

First Posted

Study publicly available on registry

July 20, 2018

Completed
3 months until next milestone

Study Start

First participant enrolled

October 11, 2018

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 19, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 19, 2022

Completed
1.2 years until next milestone

Results Posted

Study results publicly available

November 14, 2023

Completed
Last Updated

November 14, 2023

Status Verified

October 1, 2023

Enrollment Period

3.9 years

First QC Date

July 11, 2018

Results QC Date

September 18, 2023

Last Update Submit

October 27, 2023

Conditions

Keywords

Agitation

Outcome Measures

Primary Outcomes (1)

  • Percentage of Participants With Treatment-emergent Adverse Events (TEAEs) by Severity

    An adverse event (AE) was defined as any untoward medical occurrence in a patient or clinical trial participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment. TEAEs were defined as AEs with an onset date on or after the first dose of brexpiprazole. They are all adverse events that started after start of brexpiprazole; or if the event was continuous from baseline and was worsening, serious, study drug-related, or resulted in death, discontinuation, interruption, or reduction of study therapy. Adverse events were graded on a 3-point scale. The intensity of an adverse experience was defined as follows: 1 = Mild: Discomfort noticed, but no disruption to daily activity, 2 = Moderate: Discomfort sufficient to reduce or affect normal daily activity, and 3 = Severe: Inability to work or perform normal daily activity.

    From first dose through 30 days after last dose of study drug (Up to approximately Week 16)

Study Arms (2)

Prior Brexpiprazole

EXPERIMENTAL

Participants who received brexpiprazole in a previous double-blind phase 3 study (Trial 331-14-213 {NCT03548584}), received the same dose of brexpiprazole \[2 or 3 milligrams (mg)\], once daily (QD), orally, as they received during the previous study, for up to 12 weeks with dose adjustment.

Drug: Brexpiprazole

Prior Placebo

EXPERIMENTAL

Participants who received placebo in a previous double-blind phase 3 study (Trial 331-14-213 {NCT03548584}), received brexpiprazole following a titration schedule, to gradually increase their dose from 0.5 mg QD, in the starting to 2 or 3 mg QD, orally, for up to 12 weeks with dose adjustment.

Drug: Brexpiprazole

Interventions

2 or 3 mg tablet

Prior Brexpiprazole

Eligibility Criteria

Age55 Years - 91 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • 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.

You may not qualify if:

  • Participants with a substantial protocol violation during the course of their participation in the double-blind trial 331-14-213.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

For additional information regarding sites, contact 844-687-8522

Miami, Florida, 33155, United States

Location

Related Publications (3)

  • Shah A, Kalu U, Chen D, Slomkowski M, Hobart M, Such P, Grossberg GT. Brexpiprazole side-effect profile in people with agitation in Alzheimer's dementia: a plain language summary. Curr Med Res Opin. 2026 Jan 14:1-3. doi: 10.1080/03007995.2025.2608578. Online ahead of print.

  • Shah A, Estilo A, Sheridan PL, Kalu U, Chen D, Chang D, Slomkowski M, Lee D, Hefting N, Hobart M, Behl S, Such P, Brubaker M, Grossberg GT. 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 Oct;39(10):1011-1023. doi: 10.1007/s40263-025-01200-9. Epub 2025 Jul 19.

  • Behl S, Slomkowski M, Chen D, Chang D, Hefting N, Lee D, Shah A, Estilo A, Kalu U, Hobart M. Brexpiprazole for the treatment of agitation associated with dementia due to Alzheimer's disease: A 12-week, active-treatment, extension trial. J Alzheimers Dis. 2024 Nov;102(2):520-529. doi: 10.3233/JAD-240491. Epub 2024 Nov 13.

MeSH Terms

Conditions

Alzheimer DiseasePsychomotor Agitation

Interventions

brexpiprazole

Condition Hierarchy (Ancestors)

DementiaBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesTauopathiesNeurodegenerative DiseasesNeurocognitive DisordersMental DisordersDyskinesiasNeurologic ManifestationsPsychomotor DisordersNeurobehavioral ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsAberrant Motor Behavior in DementiaBehavioral SymptomsBehavior

Results Point of Contact

Title
Global Clinical Development
Organization
Otsuka Pharmaceutical Development & Commercialization, Inc.

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
NON RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 11, 2018

First Posted

July 20, 2018

Study Start

October 11, 2018

Primary Completion

September 19, 2022

Study Completion

September 19, 2022

Last Updated

November 14, 2023

Results First Posted

November 14, 2023

Record last verified: 2023-10

Data Sharing

IPD Sharing
Will share

Anonymized Individual participant data (IPD) that underlie the results of this study will be shared with researchers to achieve aims pre-specified in a methodologically sound research proposal. Small studies with less than 25 participants are excluded from data sharing.

Shared Documents
STUDY PROTOCOL, SAP, CSR
Time Frame
Data will be available after marketing approval in global markets, or beginning 1-3 years following article publication. There is no end date to the availability of the data.
Access Criteria
Otsuka will share data on the Vivli data sharing platform which can be found here: https://vivli.org/ourmember/Otsuka/
More information

Locations