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EISAI INC.

EISAI INC. logo
🇺🇸United States
Ownership
-
Employees
-
Market Cap
-
Website

Clinical Trials

394

Active:42
Completed:296

Trial Phases

6 Phases

Early Phase 1:1
Phase 1:160
Phase 2:102
+3 more phases

Drug Approvals

10

FDA:8
NMPA:2

Drug Approvals

Lecanemab Injection

Product Name
乐意保
Approval Number
国药准字SJ20240001
Approval Date
Jan 5, 2024
NMPA

Lecanemab Injection

Product Name
乐意保
Approval Number
国药准字SJ20240002
Approval Date
Jan 5, 2024
NMPA

Clinical Trials

Distribution across different clinical trial phases (361 trials with phase data)• Click on a phase to view related trials

Phase 1
160 (44.3%)
Phase 2
102 (28.3%)
Phase 3
72 (19.9%)
Phase 4
25 (6.9%)
Early Phase 1
1 (0.3%)
Not Applicable
1 (0.3%)

A Study of Oral E1018 in Healthy Adult Participants

Phase 1
Recruiting
Conditions
Malaria
Healthy Participants
Interventions
Drug: E1018
Drug: Placebo
First Posted Date
2025-03-03
Last Posted Date
2025-06-18
Lead Sponsor
Eisai Inc.
Target Recruit Count
48
Registration Number
NCT06854042
Locations
🇺🇸

PPD Development, LP, Austin, Texas, United States

A Study to Assess the Pregnancy Outcome in Women Exposed to Dayvigo® During Pregnancy Compared to an Unexposed Control Population

Active, not recruiting
Conditions
Sleep Initiation and Maintenance Disorders
Pregnancy
First Posted Date
2024-12-20
Last Posted Date
2025-06-19
Lead Sponsor
Eisai Inc.
Target Recruit Count
861
Registration Number
NCT06744673
Locations
🇺🇸

Eisai Trial Site #1, Nutley, New Jersey, United States

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

Phase 2
Active, not recruiting
Conditions
Alzheimer's Disease
Interventions
First Posted Date
2024-09-19
Last Posted Date
2025-06-19
Lead Sponsor
Eisai Inc.
Target Recruit Count
105
Registration Number
NCT06602258
Locations
🇺🇸

Banner Sun Health Research Institute, Sun City, Arizona, United States

🇺🇸

Yale University School of Medicine, New Haven, Connecticut, United States

🇺🇸

Bradenton Research Center, Bradenton, Florida, United States

and more 24 locations

A Study of E2086 in Healthy Adult Participants

Phase 1
Completed
Conditions
Healthy Volunteers
Interventions
Drug: Placebo
First Posted Date
2024-07-01
Last Posted Date
2025-01-16
Lead Sponsor
Eisai Inc.
Target Recruit Count
32
Registration Number
NCT06481488
Locations
🇺🇸

Parexel International, Glendale, California, United States

A Study to Evaluate the Efficacy, Safety, and Tolerability of E2086 Compared to Placebo and Active Comparator in Adult Participants With Narcolepsy Type 1

Phase 1
Completed
Conditions
Narcolepsy Type 1 (NT1)
Interventions
Drug: E2086 Placebo
Drug: Active Comparator
Drug: Active Comparator Placebo
First Posted Date
2024-06-17
Last Posted Date
2025-06-04
Lead Sponsor
Eisai Inc.
Target Recruit Count
22
Registration Number
NCT06462404
Locations
🇺🇸

SDS Clinical Trials, Santa Ana, California, United States

🇺🇸

PharmaDev Clinical Research, Miami, Florida, United States

🇺🇸

Sleep Practioners, LLC, Macon, Georgia, United States

and more 11 locations
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News

LEAP-001 Trial: Lenvatinib and Pembrolizumab Combination Fails to Improve Survival in Advanced Endometrial Cancer

The Phase III LEAP-001 trial evaluated lenvatinib plus pembrolizumab versus chemotherapy as a first-line treatment for advanced or recurrent endometrial cancer.

Lenvatinib Plus Ifosfamide/Etoposide Fails to Significantly Improve Progression-Free Survival in Relapsed Osteosarcoma

A phase II study (OLIE) found that adding lenvatinib to ifosfamide/etoposide did not significantly improve progression-free survival (PFS) in pediatric and young adult patients with relapsed osteosarcoma.

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