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A Study to Assess the Safety and Tolerability of E8001 in Healthy Male Participants

A Randomized, Single-Blind, Placebo-Controlled, Single Ascending Dose Study to Assess the Safety, Tolerability, and Pharmacokinetics of E8001 in Healthy Male Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04609852
Enrollment
36
Registered
2020-10-30
Start date
2020-10-28
Completion date
2023-08-18
Last updated
2023-09-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Volunteers

Keywords

Healthy Participants, E8001

Brief summary

The purpose of this study is to evaluate the safety, tolerability, and pharmacokinetics (PK) of E8001 of single ascending dose intravenous infusions in healthy male participants.

Interventions

DRUGE8001

Intravenous infusion.

DRUGPlacebo

Intravenous infusion.

Sponsors

Eisai Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
MALE
Age
20 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

1. Non-smoking, age greater than or equal to (\>=) 20 years and less than or equal to (\<=) 55 years old adult male at the time of informed consent. To be considered non-smokers, participants must have discontinued smoking for at least 4 weeks before dosing 2. Body mass index (BMI) \>=18.5 and less than (\<) 25.0 kilogram per square meter (kg/m˄2) at Screening

Exclusion criteria

1. Males who have not had a successful vasectomy (confirmed azoospermia) or they and their female partners do not meet the criteria (that is, not of childbearing potential or practicing highly effective contraception throughout the study period or for 5 times the half-life of the study drug plus 90 days after study drug discontinuation). No sperm donation is allowed during the study period and for 5 times the half-life of the study drug plus 90 days after study drug discontinuation 2. Clinically significant illness that requires medical treatment within 8 weeks or a clinically significant infection that requires medical treatment within 4 weeks of dosing 3. History of meningococcal infection or pneumococcal infection 4. Evidence of disease that may influence the outcome of the study within 4 weeks before dosing; example- psychiatric disorders and disorders of the gastrointestinal tract, liver, kidney, respiratory system, endocrine system, hematological system, neurological system, or cardiovascular system, or participants who have a congenital abnormality in metabolism 5. Any history of gastrointestinal surgery that may affect PK profiles of E8001, example- hepatectomy, nephrectomy, and digestive organ resection at Screening 6. Any clinically abnormal symptom or organ impairment found by medical history at Screening, and physical examinations, vital signs, ECG finding, or laboratory test results that require medical treatment at Screening or Baseline 7. History of prolonged QT/QTc interval 8. History of left bundle branch block (LBBB) 9. History of myocardial infarction (MI) or active ischemic heart disease (IHD) 10. History of clinically significant arrhythmia or uncontrolled arrhythmia 11. Active viral hepatitis (A, B or C) and syphilis as demonstrated by positive serology at Screening 12. History of drug or alcohol dependency or abuse, or those who have a positive drug test at Screening or Baseline 13. Liver function test with following values at Screening or Baseline: 1. aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), or gamma glutamyl transpeptidase (GGT): greater than (\>) upper limit of normal (ULN) 2. direct bilirubin or total bilirubin: \>1.5\*ULN

Design outcomes

Primary

MeasureTime frameDescription
Vss: Volume of Distribution at Steady State for E8001Day 1: 0-168 hours
Number of Participants With Treatment-emergent Adverse Events (TEAEs) and Serious Adverse Events (SAEs)Screening up to Day 180 (approximately 292 days)Safety assessments will consist of monitoring and recording all adverse events (AEs) and SAEs; regular monitoring of clinical laboratory parameters; and periodic measurement of vital signs and 12-lead electrocardiogram (ECG), body weight and physical examinations.
Cmax: Maximum Observed Plasma Concentration for E8001Day 1: 0-168 hours
Tmax: Time to Reach the Maximum Plasma Concentration (Cmax) for E8001Day 1: 0-168 hours
AUC(0-t): Area Under the Concentration-time Curve From Zero (Pre-dose) to Time of Last Quantifiable Concentration for E8001Day 1: 0-168 hours
T1/2: Terminal Elimination Phase Half-life for E8001Day 1: 0-168 hours
CL: Total Clearance for E8001Day 1: 0-168 hours

Secondary

MeasureTime frameDescription
Change From Baseline in Corrected QT (QTc) IntervalDay 1: 0-24 hoursTo assess the effect of E8001 on ventricular repolarization by assessing the QTc interval corrected by the Fridericia formula (QTcF).

Countries

Japan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026