Single and Multiple Dose Asian Bridging Study

April 4, 2012 updated by: Eisai Inc.

A Randomized, Double-Blind, Placebo-Controlled, 3-Way Crossover Study to Evaluate the Single-Dose Pharmacokinetics, Pharmacodynamics, Safety, and Tolerability of 10, 40, and 80 mg E5501 Followed by a Selected Dose for Multiple Dosing Administered to Healthy Japanese, Chinese, and Caucasian Subjects

The purpose of this study is to evaluate the single-dose (SD) pharmacokinetics (PK), pharmacodynamics (PD), safety and tolerability of 10, 40, and 80 mg E5501 followed by a selected dose for multiple dosing (MD) in healthy Japanese, Chinese, and Caucasian subjects.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This study will evaluate the single-dose (SD) pharmacokinetics (PK), pharmacodynamics (PD), safety, and tolerability of oral doses of 10, 40, and 80 mg E5501 administered to 36 healthy male and female Japanese, Chinese, and Caucasian subjects. For the SD Treatment Period, 12 subjects from each ethnic group will be randomized to receive single doses of 10, 40, or 80 mg E5501 or matching placebo each treatment period. Each subject will be allocated to a treatment sequence to be dosed with either placebo for the three periods or dosed with each of the three different doses in the three periods. For the Multiple-Dose (MD) Treatment Period the 12 subjects in each ethnic group will be further randomized as active (dose level to be determined from the SD Treatment Period or placebo in a 3:1 ratio.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
36

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Los Angeles, California, United States
        • Parexel International, Early Phase Clinical Unit

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

20 years to 45 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Key Inclusion Criteria:

  • Normal healthy adult males and females (age 20-45 years)
  • Body Mass Index greater than or equal to 18 and less than or equal to 29 at the time of screening
  • Japanese and Chinese subjects must be born in their respective countries of origin and have parents and grandparents of Japanese or Chinese descent, respectively
  • Japanese subjects must have lived outside of Japan for no more than 5 years; Chinese subjects must have lived outside of China for no more than 10 years
  • In addition to mainland China, Chinese subjects may be from Taiwan, Hong Kong, or Mongolia
  • Japanese and Chinese subjects must not have significantly changes their lifestyle with regard to diet; i.e., their diet must not have significantly changed since leaving China or Japan
  • Platelet count between 150,000 and 300,000/mm3

Key Exclusion Criteria:

  • Evidence of clinically significant cardiovascular, hepatic, gastrointestinal, renal, respiratory, endocrine, hematologic, neurologic, or psychiatric disease or abnormalities or a known history of any gastrointestinal surgery that could impact the PK of the study drug
  • Evidence of organ dysfunction or any clinically significant deviation from normal in their medical history, e.g., history of splenectomy
  • History of venous or arterial thrombotic disease or other hypercoagulable state
  • Hemoglobin level less than 12.0 g/dL

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Treatment Group 1
Drug: E5501
Treatment Group 1: 10mg E5501 as a single dose in Treatment Period 1, followed by a single dose of 40mg E5501 in Treatment Period 2, followed by a single dose of 80mg E5501 in Treatment Period 3, followed by a selected dose for the Multiple Dose reatment Period.
Drug: E5501
Treatment Group 2: 40 mg E5501 as a single dose in Treatment Period 1, followed by a single dose of 80mg E5501 in Treatment Period 2, followed by a single dose of 10mg E5501 in Treatment Period 3, followed by a selected dose for the Multiple Dose Treatment Period.
Drug: E5501
Treatment Group 3: 80mg E5501 as a single dose in Treatment Period 1, followed by a single dose of 10mg E5501 in Treatment Period 2, followed by a single dose of 40mg E5501 in Treatment Period 3, followed by a selected dose for the Multiple Dose Treatment Period.
Drug: E5501
Treatment Group 4: A single dose of matching placebo in each of the three Single Dose Treatment Periods and in the Multiple Dose Treatment Period
Experimental: Treatment Group 2
Drug: E5501
Treatment Group 1: 10mg E5501 as a single dose in Treatment Period 1, followed by a single dose of 40mg E5501 in Treatment Period 2, followed by a single dose of 80mg E5501 in Treatment Period 3, followed by a selected dose for the Multiple Dose reatment Period.
Drug: E5501
Treatment Group 2: 40 mg E5501 as a single dose in Treatment Period 1, followed by a single dose of 80mg E5501 in Treatment Period 2, followed by a single dose of 10mg E5501 in Treatment Period 3, followed by a selected dose for the Multiple Dose Treatment Period.
Drug: E5501
Treatment Group 3: 80mg E5501 as a single dose in Treatment Period 1, followed by a single dose of 10mg E5501 in Treatment Period 2, followed by a single dose of 40mg E5501 in Treatment Period 3, followed by a selected dose for the Multiple Dose Treatment Period.
Drug: E5501
Treatment Group 4: A single dose of matching placebo in each of the three Single Dose Treatment Periods and in the Multiple Dose Treatment Period
Experimental: Treatment Group 3
Drug: E5501
Treatment Group 1: 10mg E5501 as a single dose in Treatment Period 1, followed by a single dose of 40mg E5501 in Treatment Period 2, followed by a single dose of 80mg E5501 in Treatment Period 3, followed by a selected dose for the Multiple Dose reatment Period.
Drug: E5501
Treatment Group 2: 40 mg E5501 as a single dose in Treatment Period 1, followed by a single dose of 80mg E5501 in Treatment Period 2, followed by a single dose of 10mg E5501 in Treatment Period 3, followed by a selected dose for the Multiple Dose Treatment Period.
Drug: E5501
Treatment Group 3: 80mg E5501 as a single dose in Treatment Period 1, followed by a single dose of 10mg E5501 in Treatment Period 2, followed by a single dose of 40mg E5501 in Treatment Period 3, followed by a selected dose for the Multiple Dose Treatment Period.
Drug: E5501
Treatment Group 4: A single dose of matching placebo in each of the three Single Dose Treatment Periods and in the Multiple Dose Treatment Period
Experimental: Treatment Group 4
Drug: E5501
Treatment Group 1: 10mg E5501 as a single dose in Treatment Period 1, followed by a single dose of 40mg E5501 in Treatment Period 2, followed by a single dose of 80mg E5501 in Treatment Period 3, followed by a selected dose for the Multiple Dose reatment Period.
Drug: E5501
Treatment Group 2: 40 mg E5501 as a single dose in Treatment Period 1, followed by a single dose of 80mg E5501 in Treatment Period 2, followed by a single dose of 10mg E5501 in Treatment Period 3, followed by a selected dose for the Multiple Dose Treatment Period.
Drug: E5501
Treatment Group 3: 80mg E5501 as a single dose in Treatment Period 1, followed by a single dose of 10mg E5501 in Treatment Period 2, followed by a single dose of 40mg E5501 in Treatment Period 3, followed by a selected dose for the Multiple Dose Treatment Period.
Drug: E5501
Treatment Group 4: A single dose of matching placebo in each of the three Single Dose Treatment Periods and in the Multiple Dose Treatment Period

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
• To compare the single-dose pharmacokinetics (PK), as measured by AUCinf of three doses of E5501 (10, 40, and 80 mg) in healthy Japanese and Chinese subjects relative to healthy Caucasian subjects
Time Frame: up to 96 hours post-dose
up to 96 hours post-dose
• To compare the multiple-dose steady-state PK, as measured by AUCss, of E5501 in healthy Japanese and Chinese subjects relative to Caucasian subjects
Time Frame: up to 96 hours after dosing on Day 7 or up to 240 hours after the first drug dosing
up to 96 hours after dosing on Day 7 or up to 240 hours after the first drug dosing
• To compare the multiple-dose pharmacodynamic (PD) response as measured by platelet counts for E5501 in healthy Japanese and Chinese subjects relative to Caucasian subjects
Time Frame: through Day 21 for each SD Treatment Period and through Day 30 for the MD Treatment Period
through Day 21 for each SD Treatment Period and through Day 30 for the MD Treatment Period
• To compare the single-dose pharmacokinetics (PK), as measured by Cmax of three doses of E5501 (10, 40, and 80 mg) in healthy Japanese and Chinese subjects relative to healthy Caucasian subjects
Time Frame: up to 96 hours post-dose
up to 96 hours post-dose

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
To evaluate single-dose linearity of 10, 40 and 80mg E5501 in healthy Japanese, Chinese, and Caucasian subjects
Time Frame: from Day 1 SD Treatment Period 1 through Day 30 MD Treatment Period 4
from Day 1 SD Treatment Period 1 through Day 30 MD Treatment Period 4
To characterize PK/PD relationships between E5501 exposure and platelet count response in healthy Japanese, Chinese, and Caucasian subjects
Time Frame: from Day 1 SD Treatment Period 1through Day 30 MD Treatment Period 4
from Day 1 SD Treatment Period 1through Day 30 MD Treatment Period 4

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Eisai Inc.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Franklin Johnson, Eisai Inc.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 1, 2010

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 1, 2011

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 30, 2010

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 1, 2010

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 2, 2010

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 6, 2012

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 4, 2012

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2012

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • E5501-A001-006

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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