A Study to Evaluate the Pharmacokinetics of Abiraterone in Healthy Chinese Male Participants

September 5, 2013 updated by: Janssen Research & Development, LLC

A Single-Dose, Randomized, Open-Label, Three-Way Crossover Study to Evaluate the Pharmacokinetics of Abiraterone in Chinese Healthy Male Subjects

The purpose of this study is to evaluate the pharmacokinetics (how the drug concentrations change over time) of abiraterone acetate after oral administration of abiraterone acetate at different dose levels of 250, 500, and 1000 mg in healthy Chinese male participants under fasted conditions.

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 is an open-label (all people know the identity of the intervention), randomized (the treatment sequence is assigned by chance), 3-way crossover study (method used to switch participants from one dose level to another in a clinical study) of single doses of abiraterone acetate in healthy Chinese male participants. The study consists of 3 phases: screening, open-label treatment, and follow up phases. After screening, randomly assigned participants will receive different dose levels of abiraterone acetate (Treatment A = 250 mg; Treatment B = 500 mg; and Treatment C = 1000 mg) on Day 1 in each of the 3 treatment periods according to a randomized schedule under fasted conditions (Sequence 1 = ABC; Sequence 2 = BAC; and Sequence 3 = CBA). Each treatment period will be separated by a washout period (period when participant is not receiving any study medication) of at least 7 days. In the follow-up phase, study-related adverse events will be monitored by the investigator. Serial blood samples for pharmacokinetic analysis will be collected and safety will be monitored throughout the study. The total study duration will be approximately 42 days.

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.
15

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

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

18 years to 55 years (ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Body mass index within 18 to 27 kg/m2 (inclusive) and body weight above 50 kg at screening
  • Protocol-defined laboratory and electrocardiogram parameters
  • Negative test results for selected medications and substances of abuse and negative exhaled carbon monoxide test at check-in day of each period
  • Agrees to protocol-defined use of effective contraception
  • Willing to be confined at the clinical research facility for time period specified in the protocol

Exclusion Criteria:

  • Significant history or current manifestation of any significant metabolic, allergic, dermatological, hepatic, renal, hematologic, pulmonary, cardiovascular, gastrointestinal, neurological, or psychiatric disorder
  • History of hypersensitivity reaction to the study medication or related compounds or excipients used in the formulation
  • Confirmed hepatitis A, B, or C infection or human immunodeficiency virus (HIV) 1 or HIV-2 infection at screening
  • Serum testosterone level of <200 ng/dL
  • Use of any tobacco or nicotine-containing products
  • Known or suspected use of illicit drugs in the last year
  • Protocol contraindicated medications/preparations (prescription and non-prescription)

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
  • Masking: NONE

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: Sequence 1: abiraterone acetate
Randomly assigned participants in Sequence 1 will receive different dose levels of abiraterone acetate (Treatment A = 250 mg; Treatment B = 500 mg; and Treatment C = 1000 mg) on Day 1 in each of the 3 treatment periods according to the randomized schedule "ABC" under fasted conditions.
Drug: Treatment A: abiraterone acetate
250 mg/day tablet administered orally on Day 1 of each treatment period.
Other Names:
  • ZYTIGA
Drug: Treatment B: abiraterone acetate
500 mg/day tablets administered orally on Day 1 of each treatment period.
Other Names:
  • ZYTIGA
Drug: Treatment C: abiraterone acetate
1000 mg/day tablets administered orally on Day 1 of each treatment period.
Other Names:
  • ZYTIGA
EXPERIMENTAL: Sequence 2: abiraterone acetate
Randomly assigned participants in Sequence 2 will receive different dose levels of abiraterone acetate (Treatment A = 250 mg; Treatment B = 500 mg; and Treatment C = 1000 mg) on Day 1 in each of the 3 treatment periods according to the randomized schedule "BAC" under fasted conditions.
Drug: Treatment A: abiraterone acetate
250 mg/day tablet administered orally on Day 1 of each treatment period.
Other Names:
  • ZYTIGA
Drug: Treatment B: abiraterone acetate
500 mg/day tablets administered orally on Day 1 of each treatment period.
Other Names:
  • ZYTIGA
Drug: Treatment C: abiraterone acetate
1000 mg/day tablets administered orally on Day 1 of each treatment period.
Other Names:
  • ZYTIGA
EXPERIMENTAL: Sequence 3: abiraterone acetate
Randomly assigned participants in Sequence 3 will receive different dose levels of abiraterone acetate (Treatment A = 250 mg; Treatment B = 500 mg; and Treatment C = 1000 mg) on Day 1 in each of the 3 treatment periods according to the randomized schedule "CBA" under fasted conditions.
Drug: Treatment A: abiraterone acetate
250 mg/day tablet administered orally on Day 1 of each treatment period.
Other Names:
  • ZYTIGA
Drug: Treatment B: abiraterone acetate
500 mg/day tablets administered orally on Day 1 of each treatment period.
Other Names:
  • ZYTIGA
Drug: Treatment C: abiraterone acetate
1000 mg/day tablets administered orally on Day 1 of each treatment period.
Other Names:
  • ZYTIGA

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
Maximum observed plasma concentration of abiraterone
Time Frame: Pre-dose and up to 96 hours post-dose each treatment period
Pre-dose and up to 96 hours post-dose each treatment period
Time to reach the maximum observed plasma concentration of abiraterone
Time Frame: Pre-dose and up to 96 hours post-dose each treatment period
Pre-dose and up to 96 hours post-dose each treatment period
Area under the plasma concentration-time curve from time 0 to the last quantifiable concentration of abiraterone
Time Frame: Pre-dose and up to 96 hours post-dose each treatment period
Pre-dose and up to 96 hours post-dose each treatment period
Area under the plasma concentration-time curve extrapolated to infinite time of abiraterone
Time Frame: Pre-dose and up to 96 hours post-dose each treatment period
Pre-dose and up to 96 hours post-dose each treatment period
Apparent terminal elimination rate constant of abiraterone
Time Frame: Pre-dose and up to 96 hours post-dose each treatment period
Pre-dose and up to 96 hours post-dose each treatment period
Apparent terminal elimination half-life of abiraterone
Time Frame: Pre-dose and up to 96 hours post-dose each treatment period
Pre-dose and up to 96 hours post-dose each treatment period

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
Number of participants with adverse events
Time Frame: Up to 42 days
Up to 42 days

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.
Janssen Research & Development, LLC

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, 2012

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.
September 1, 2012

Study Completion (ACTUAL)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
September 1, 2012

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).
August 31, 2012

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.
August 31, 2012

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.
September 5, 2012

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.
September 6, 2013

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.
September 5, 2013

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.
September 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

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.
  • CR100668
  • ABI-PRO-1016 (OTHER: Janssen Research & Development, LLC)

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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