NCT06322667

Brief Summary

The primary purpose of this study is to investigate the characteristics of amyloid related imaging abnormalities (ARIA) and investigate the treatment continuation status (e.g., continuation, interruption) after the onset of ARIA in routine clinical practice in participants treated with lecanemab.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
5,000

participants targeted

Target at P75+ for all trials

Timeline
19mo left

Started Feb 2024

Longer than P75 for all trials

Geographic Reach
1 country

3 active sites

Status
recruiting

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

Study Progress60%
Feb 2024Dec 2027

Study Start

First participant enrolled

February 14, 2024

Completed
29 days until next milestone

First Submitted

Initial submission to the registry

March 14, 2024

Completed
7 days until next milestone

First Posted

Study publicly available on registry

March 21, 2024

Completed
3.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2027

Last Updated

January 23, 2026

Status Verified

January 1, 2026

Enrollment Period

3.9 years

First QC Date

March 14, 2024

Last Update Submit

January 22, 2026

Conditions

Keywords

Early Alzheimer's DiseaseLecanemabARIA

Outcome Measures

Primary Outcomes (2)

  • Number of Participants With Amyloid Related Imaging Abnormality-Oedema/Effusion (ARIA-E) and Amyloid Related Imaging Abnormality-Microhemorrhage and Hemosiderin Deposit, and Cerebellar Microhaemorrhage (ARIA-H)

    Up to 156 weeks

  • Number of Participants With Interruption or Discontinuation of Lecanemab After Onset of ARIA

    Up to 156 weeks

Secondary Outcomes (1)

  • Number of Participants With Infusion Related Reaction

    Up to 156 weeks

Study Arms (1)

All Participants

Participants prescribed lecanemab by a physician in routine clinical practice (post-marketing surveillance) will be observed prospectively for up to a maximum of 156 weeks or to the time of discontinuation, whichever occurs first.

Other: No Intervention

Interventions

This is a non-interventional study.

All Participants

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Participants prescribed lecanemab by a physician in routine clinical practice.

You may qualify if:

  • All participants who are treated with lecanemab in routine clinical practice

You may not qualify if:

  • None

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Eisai trial site 2

Hiroshima, Japan

RECRUITING

Eisai trial site 3

Kyoto, Japan

RECRUITING

Eisai trial site 1

Tokyo, Japan

RECRUITING

MeSH Terms

Conditions

Alzheimer Disease

Condition Hierarchy (Ancestors)

DementiaBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesTauopathiesNeurodegenerative DiseasesNeurocognitive DisordersMental Disorders

Central Study Contacts

Eisai Inquiry Service.

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 14, 2024

First Posted

March 21, 2024

Study Start

February 14, 2024

Primary Completion (Estimated)

December 31, 2027

Study Completion (Estimated)

December 31, 2027

Last Updated

January 23, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will share

Eisai's data sharing commitment and further information on how to request data can be found on our website http://eisaiclinicaltrials.com/.

Locations