EichorEICHOR
Study identifier: NCT03887455 Synced from ClinicalTrials.gov · August 04, 2026
● Active Not Recruiting

A Study to Confirm Safety and Efficacy of Lecanemab in Participants With Early Alzheimer's Disease

Condition: Early Alzheimer's Disease  ·  Sponsor: Eisai Inc.

PhasePhase 3
Planned participants1906
Who can joinAll sexes, 50 Years to 90 Years
Healthy volunteersNo

About this study

This study will be conducted to evaluate the efficacy of lecanemab in participants with early Alzheimer's disease (EAD) by determining the superiority of lecanemab compared with placebo on the change from baseline in the Clinical Dementia Rating-Sum of Boxes (CDR-SB) at 18 months of treatment in the Core Study. This study will also evaluate the long-term safety and tolerability of lecanemab in participants with EAD in the Extension Phase and whether the long-term effects of lecanemab as measured by the CDR-SB at the end of the Core Study is maintained over time in the Extension Phase. Extension Phase Part B will continue dosing with lecanemab in countries where lecanemab may not be commercially available.

This description comes directly from the study's public registry record.

Talk to the study team

No contact information is available for this study as per the public registry record.

Always discuss trial participation with your own doctor first.

Locations (247)

Banner Alzheimer's Institute- Clinical Trials DepartmentPhoenix, Arizona, United States
Banner Sun Health ResearchSun City, Arizona, United States
Neurological Associates of Tucson dba Center for NeurosciencesTucson, Arizona, United States
Neurology Center of North Orange CountyFullerton, California, United States
Irvine Clinical ResearchIrvine, California, United States
University of California - Los AngelesLos Angeles, California, United States
Pacific Neuroscience Medical GroupOxnard, California, United States
Stanford University Medical CenterPalo Alto, California, United States
Pacific Research Network, IncSan Diego, California, United States
Sharp Mesa Vista HospitalSan Diego, California, United States
UCSF Memory and Aging CenterSan Francisco, California, United States
Apex Research InstituteSanta Ana, California, United States

+ 235 more locations — full list on the registry record.

Follow this study

Save your interest here for when the public record changes — results posted, or the study's status changes. Email alerts for this study aren't switched on yet.

We keep this only about this public record, and never email you without alerts being switched on. Want it removed at any time? Email hello@eichor.com. Never medical advice. By subscribing you agree to our Terms of Use and Privacy Policy.

Is this your study? This page was generated automatically from the public registry record. Sponsors can claim it — free — to add branding and verified contact routing. Claim this page →