Observing the effects of lecanemab in early Alzheimer's disease patients

A Multicenter, Postmarketing Observational Study to Evaluate Safety Regarding Amyloid-Related Imaging Abnormalities and Their Management in Patients With Early Alzheimer's Disease and Treated With Lecanemab

Observational Eisai Inc. · NCT06322667

This study looks at how lecanemab affects early Alzheimer's patients and what happens to them if they experience certain side effects while on the treatment.

Quick facts

Study typeObservational
Enrollment5000 (estimated)
Ages18 Years and up
SexAll
SponsorEisai Inc. Industry-sponsored
Drugs / interventionslecanemab
Locations3 sites (Hiroshima and 2 other locations)
Trial IDNCT06322667 on ClinicalTrials.gov

What this trial studies

This observational study aims to investigate the characteristics of amyloid-related imaging abnormalities (ARIA) in patients with early Alzheimer's disease who are being treated with lecanemab. It will also assess the treatment continuation status, including whether patients continue or interrupt their treatment after experiencing ARIA. The study will gather data from routine clinical practice to better understand the real-world implications of lecanemab treatment. Participants will be monitored without any additional interventions.

Who should consider this trial

Good fit: Ideal candidates for this study are individuals diagnosed with early Alzheimer's disease who are currently receiving treatment with lecanemab.

Not a fit: Patients who are not being treated with lecanemab or those with advanced stages of Alzheimer's disease may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide valuable insights into the safety and effectiveness of lecanemab for patients with early Alzheimer's disease.

How similar studies have performed: Other studies have shown success in monitoring ARIA in Alzheimer's treatments, making this approach relevant and potentially beneficial.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

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

Exclusion Criteria:

* None

Where this trial is running

Hiroshima and 2 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Alzheimer's DiseaseEarly Alzheimer's DiseaseLecanemabARIA
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.