A Postmarketing Study of Lecanemab for the Treatment of Participants With Alzheimer's Disease
Public ClinicalTrials.gov record NCT07821658. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A 10-Year, Postmarketing, Multicenter, Safety Surveillance Study of Lecanemab-irmb for the Treatment of Participants With Alzheimer's Disease in Real-World Clinical Practice (Using Alzheimer's Network for Treatment and Diagnostics [ALZ-NET] Registry Data)
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The primary purpose of this study is to evaluate the safety of lecanemab-irmb in the real-world clinical setting as reported by events of amyloid-related imaging abnormalities (ARIA)-edema (ARIA-E), ARIA-hemosiderin deposition (ARIA-H), symptomatic ARIA-E, symptomatic ARIA-H, and intracerebral hemorrhage (ICH) greater-than 1 cm in participants treated with lecanemab-irmb. The secondary purpose of this study is to: Evaluate the safety of lecanemab-irmb in the real-world clinical setting as reported by events of seizures, anaphylaxis, central nervous system (CNS) ischemic event, and death. Assess the safety of lecanemab-irmb when stratified by baseline characteristics including apolipoprotein E (APOE) genotype, baseline magnetic resonance imaging (MRI) findings consistent with a high risk for cerebral amyloid angiopathy (CAA), prior Alzheimer's Disease (AD) treatments, and antithrombotic therapy. Assess the risk of safety outcomes (ARIA-E, ARIA-H, ICH greater than 1 cm, seizures, anaphylaxis, CNS ischemic event, and death) associated with APOE genotype, baseline MRI findings consistent with high risk for CAA, prior AD treatment, and antithrombotic therapy within participants exposed to lecanemab-irmb in ALZ-NET. Assess the risk of safety outcomes (ARIA-E, ARIA-H, ICH greater than 1 cm, seizures, anaphylaxis, CNS ischemic event, and death) between participants exposed to lecanemab-irmb in ALZ-NET and subjects exposed to lecanemab irmb in Study 301. Assess the risk of safety outcomes (ARIA-E, ARIA-H, ICH greater than 1 cm, seizures, anaphylaxis, CNS ischemic event,and death) between participants exposed to lecanemabirmb in ALZ-NET and subjects exposed to placebo (PBO) in Study 301. Assess the risk of safety outcomes (ARIA-E, ARIA-H, ICH greater than 1 cm, seizures, anaphylaxis, CNS ischemic event, and death) between participants exposed to lecanemab-irmb in ALZ-NET and participants not exposed to anti-amyloid therapies in ALZ-NET. Assess whether the risk of safety outcomes associated with APOE genotype, baseline MRI findings consistent with high risk for CAA, prior Alzheimer's Disease treatments, and antithrombotic therapy differs between participants exposed to lecanemab-irmb in ALZ-NET versus those not exposed to anti-amyloid therapies in ALZ-NET.
Study identification
- NCT ID
- NCT07821658
- Recruitment status
- Recruiting
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 6,700 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- Not listed
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- May 22, 2025
- Primary completion
- Jan 14, 2035
- Completion
- Jan 14, 2035
- Last update posted
- Sep 15, 2026
2025 – 2035
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Eisai Trial Site #1 | Nutley | New Jersey | 07110 | Recruiting |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT07821658, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Sep 15, 2026 · Synced Sep 25, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT07821658 live on ClinicalTrials.gov.