Eisai

287 total trials 5 currently recruiting 243 completed

Eisai sponsors 287 registered US clinical trials on ClinicalTrials.gov, 5 of them currently recruiting, and 243 completed. 67 of these trials are in Phase 3-4 (later-stage) and 214 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Healthy Subjects, with 6 trials.

Trial Pipeline

287 total, page 6 of 6

COMPLETED Phase 2

Trial of Decitabine in Patients With Acute Myelogenous Leukemia or Myelodysplastic Syndrome

NCT00760084

COMPLETED Phase 1

An Open-Label Study of E7974 Administered on Days 1, 8, and 15 of a 28-Day Cycle and Days 1 and 8 of a 21-Day Cycle in Patients With Solid Malignancies

NCT00121732

COMPLETED Phase 2

Safety and Efficacy of APD356 in the Treatment of Obesity

NCT00116740

COMPLETED Phase 2

A Study of Decitabine Given to Adults With Advanced-Stage Myelodysplastic Syndromes

NCT00260065

COMPLETED Phase 1

Pharmacokinetic Trial of Decitabine (Dacogen) Administered as a 3-hour Infusion to Patients With Acute Myelogenous Leukemia or Myelodysplastic Syndrome

NCT01378416

COMPLETED Phase 2

Study of Irofulven Plus Capecitabine in Patients With Advanced Thyroid Cancer

NCT00124527

COMPLETED Phase 2

E2007 Given as Adjunctive Therapy in Patients With Refractory Partial Seizures

NCT00144690

COMPLETED Phase 2

A Study of ONTAK in Patients With Relapsed or Refractory, B-Cell Non Hodgkin's Lymphoma

NCT00211276

COMPLETED Phase 2

Study of Decitabine for Treatment of Older Patients With Acute Myeloid Leukemia (AML)

NCT00358644

COMPLETED Phase 2

Efficacy and Safety Study of E2007 in Migraine Prophylaxis

NCT00154063

COMPLETED Phase 2

Phase II Study Of E7389, Halichondrin B Analogue, In Patients With Advanced Non-Small Cell Lung Cancer, NSCLC, Who Progressed During Or After Platinum-Based Doublet Chemotherapy

NCT00100932

COMPLETED Phase 2

Safety and Efficacy of APD356 in the Treatment of Obesity

NCT00104507

COMPLETED Phase 2

Maintenance Intermittent Therapy for Symptomatic GERD Patients

NCT00165841

COMPLETED Phase 2

A Study of E7389 in Advanced/Metastatic Breast Cancer Patients

NCT00097721

COMPLETED Phase 2

Study of Irofulven in Patients With Hormone-refractory Prostate Cancer

NCT00124566

COMPLETED Phase 2

A Study of ONTAK and CHOP in Newly Diagnosed, Peripheral T-Cell Lymphoma

NCT00211185

COMPLETED Phase 2

Study to Evaluate the Efficacy, Safety, and Tolerability of E7070 in Metastatic Breast Cancer Patients

NCT00080197

COMPLETED Phase 1

Dosing and Safety Study of E7820 in Patients With a Malignant Solid Tumor or Lymphoma

NCT00078637

COMPLETED Phase 4

The Evaluation of the Efficacy and Safety of Donepezil Hydrochloride in Subjects With Mild Cognitive Impairment (MCI)

NCT00293176

COMPLETED Phase 2

Evaluate the Effects of GPI 1485 on Erectile Function Following Bilateral Nerve-Sparing Prostatectomy

NCT00090376

COMPLETED Phase 1

Study of E7389 in Patients With Advanced Solid Tumors

NCT00069264

COMPLETED Phase 1

Study of E7389 Administered Once Every 3 Weeks In Patients With Advanced Solid Tumors

NCT00069277

COMPLETED Phase 2

Study of ONTAK in Patients With B-Cell Chronic Lymphocytic Leukemia (CLL)

NCT00055146

COMPLETED Phase 3

Donepezil Hydrochloride (E2020) in Dementia Associated With Cerebrovascular Disease

NCT00165737

COMPLETED Phase 1

Dose-Finding Study of E7070 in Combination With Irinotecan

NCT00060567

COMPLETED Phase 2

An Evaluation Of The Efficacy And Safety Of Donepezil Hydrochloride (E2020) In Migraine Prophylaxis

NCT01146509

COMPLETED Phase 2

A Safety, Tolerability and Efficacy Study of E7070 in Patients With Renal Cell Carcinoma

NCT00059735

COMPLETED Phase 3

Evaluation of Efficacy, Safety and Tolerability of Targretin Capsules in Patients With Advanced or Metastatic Non-small Cell Lung Cancer

NCT00050960

COMPLETED Phase 3

Dose Response Study of Zonegran in Patients With Newly Diagnosed Epilepsy

NCT00056576

COMPLETED Phase 2

A Safety and Efficacy Study of Intravenous E5564 in Patients With Severe Sepsis

NCT00046072

COMPLETED Phase 4

Study of ONTAK® to Treat Cutaneous T-Cell Lymphoma (CTCL)

NCT00211198

COMPLETED Phase 3

Efficacy and Safety of Aricept in the Treatment of Severe Alzheimer's Disease

NCT00096473

COMPLETED Phase 2

Phase II Study of ONTAK in Previously Treated Patients With Low-grade Non-Hodgkin's Lymphoma (NHL)

NCT00051025

COMPLETED Phase 3

Irofulven Compared With Fluorouracil in Treating Patients With Pancreatic Cancer

NCT00033735

COMPLETED Phase 4

Study of ONTAK (Denileukin Diftitox) in Previously Treated Cutaneous T-Cell Lymphoma Patients

NCT00051012

COMPLETED Phase 4

Study of ONTAK (Denileukin Diftitox) in Cutaneous T-Cell Lymphoma (CTCL) Patients

NCT00050999

COMPLETED Phase 3

Evaluation of Efficacy, Safety and Tolerability of Targretin Capsules in Patients With Advanced or Metastatic Non-small Cell Lung Cancer

NCT00050973

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Phase Distribution

PhaseTrial count
Phase 1 122
Phase 2 92
Phase 3 52
Phase 4 15

What the Pipeline for Eisai Shows

According to the ClinicalTrials.gov registry, Eisai is linked to 287 US clinical trials across every stage of research activity. Of those, 5 studies are currently recruiting, about 2% of the sponsor's indexed portfolio, and 243 are already marked complete, representing roughly 85% of the total.

The phase mix for Eisai reports 67 late-stage studies (Phase 3 and Phase 4 combined) and 214 earlier-phase studies (Phase 1 and Phase 2).

The top therapeutic focus area indexed for Eisai is Healthy Subjects with 6 linked trials, and 9 other condition areas appear in the top list above.

How to read these pipeline numbers

Recruiting share is one of the more practical signals here: it reflects how much of a sponsor's research is presently open to new participants, while the completed share indicates the depth of finished work that has already contributed registry results. Both counts come directly from the public ClinicalTrials.gov dataset and are refreshed on the registry side; this page mirrors the latest data pull without altering it.

A portfolio weighted toward Phase 3 usually reflects an organization advancing candidates toward regulatory review, where the research centers on comparative efficacy and broader safety across larger populations. A heavier Phase 1 and Phase 2 tilt generally indicates exploratory work, safety, dosing, and early signal detection, and is common among research-forward sponsors that seed many early programs. Phase 4 entries, when present, track interventions already in real-world use and typically focus on long-term safety, effectiveness across subgroups, or formulation comparisons.

That distribution is a quick read of where the organization concentrates its research attention; it does not imply product availability, market share, or any clinical endorsement. All numbers on this page come from ClinicalTrials.gov maintained by the National Library of Medicine, and counts can shift as new studies are registered or existing ones update their status. This information is provided for reference and educational purposes only, not as medical, investment, or regulatory advice, verify current details directly with ClinicalTrials.gov before relying on any figure here.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainTrial

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This page aggregates every registered trial from this sponsor, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.