🏛️ Verified NIH Record • Updated 2026-02-09

A Study of E2814 With Concurrent Lecanemab Treatment in Participants With Early Alzheimer's Disease (NCT06602258)

A Phase 2, Placebo-Controlled, Double-Blind, Parallel-Group, Dose-Finding Study to Evaluate Safety, Tolerability, and Biomarker Efficacy of E2814 With Concurrent Lecanemab Treatment in Subjects With Early Alzheimer's Disease

🔵 Active, Not Recruiting Phase2 💊 Investigational Drug / Biologic Sponsor: Eisai Inc.

🩺 Plain-English Summary (8th-Grade Level)

The primary objective of the study is to determine the dose response of E2814, when concurrently administered with lecanemab, on the change from baseline at 6 months in cerebrospinal fluid (CSF) microtubule-binding region (MTBR)-tau-243 in participants with early Alzheimer's disease (AD).

Who can join: Review the eligibility criteria below.

Location: Banner Sun Health Research — Phoenix, Arizona

Age range: 50 Years to 80 Years

🧪 Interventions in This Study

📋 "Do I Qualify?" — 1-Minute Self Screener

Instant Checklist

Full eligibility criteria are available on the official NIH protocol. View the criteria ↗

📍 All Participating Trial Locations (26 Sites)

Showing the first 25 of 26 sites.

  • Banner Sun Health Research — Phoenix, Arizona
  • Yale University School of Medicine — New Haven, Connecticut
  • Bradenton Research Center — Bradenton, Florida
  • K2 Medical Research — Clermont, Florida
  • Advanced Clinical Research Network — Miami, Florida
  • Renstar Medical Research — Ocala, Florida
  • Progressive Medical Research — Port Orange, Florida
  • Alzheimer's Research and Treatment Center-Stuart — Stuart, Florida
  • Axiom Brain Health — Tampa, Florida
  • Charter Research — The Villages, Florida
  • Alzheimer's Research and Treatment Center — Wellington, Florida
  • Columbus Memory Center, PC — Columbus, Georgia
  • Hattiesburg Clinic — Hattiesburg, Mississippi
  • Washington University School of Medicine — St Louis, Missouri
  • Abington Neurological Associates LTD — Abington, Pennsylvania
  • Neurology Clinic, P.C. — Cordova, Tennessee
  • Kerwin Memory Center — Dallas, Texas
  • National Clinical Research-Richmond, Inc — Richmond, Virginia
  • National Center for Geriatrics and Gerontology — Ōbu, Aichi-ken
  • National Hospital Organization Hiroshima-Nishi Medical Center — Ōtake, Hiroshima
  • Keimei Memorial Hospital — Honjō, Miyazaki
  • Rijikai Medical Corporation Katayama Medical Clinic — Kurashiki, Okayama-ken
  • Tokyo Medical University Hospital — Shinjuku, Tokyo
  • Keio University Hospital — Shinjuku, Tokyo
  • Osaka Metropolitan University Hospital — Osaka,

💰 Cost, Insurance & Patient Rights

  • 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
  • Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
  • Voluntary Participation: You may withdraw at any time without affecting your standard medical care.

💡 How to Participate

  1. Check the checklist above to see if you may qualify.
  2. Review the official NIH record below to find the coordinating site.
  3. Ask about the visit schedule, what is covered at no cost, and any travel support.
  4. Confirm with your own doctor before making a decision.
🏛️ View Official NIH Record ↗