A Study to Assess the Effect of Abiraterone Acetate in Male Participants With Mild or Moderate Hepatic Impairment Compared to Matched Control Participants With Normal Hepatic Function

November 28, 2013 updated by: Cougar Biotechnology, Inc.

A Phase 1 Single Dose Open-Label Pharmacokinetic Study of Abiraterone Acetate in Male Participants With Mild or Moderate Hepatic Impairment Compared to Matched Control Participants With Normal Hepatic Function

The purpose of this study is to evaluate the safety and pharmacokinetics (study of what the body does to a drug) of 1000 mg oral dose of abiraterone acetate and its major metabolite(s) with mild or moderate hepatic impairment and matched control Participants with normal hepatic function.

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 (identity of assigned study drug will be known) pharmacokinetics and safety study of abiraterone acetate administered as four 250 mg tablets (1000 mg) to 3 cohorts (groups) in Cohort 1 (Mild Hepatic Impairment), Cohort 2 (Moderate Hepatic Impairment) and Cohort 3 (Normal Hepatic Function). There will be approximately 8 Participants per cohort (total of approximately 24 Participants for the study). The cohorts will be dosed sequentially and activities will consist of Screening, Study and Follow-up periods, a total of up to approximately 36 days. Possible Participants will be screened to assess their eligibility to enter the study within 14 days prior to study Day 1. Participants will be confined at the Clinical Research Center (CRC) from the time of Check-in on Day -1 until discharge on Day 5. Participants will return to the CRC on Days 8 and 15 and there will be a follow-up call or visit on Day 22. A review of all clinical and laboratory data through Day 8 evaluations in each cohort will be done by the Medical Monitor and the Principal Investigator (PI) prior to proceeding with dosing any further cohort, if indicated. Safety will be monitored throughout the study.

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.
24

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

40 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Non smokers or light smokers and willing to limit smoking for the period of confinement to 4 cigarettes per day
  • Body Mass Index of 18-35 kg/m2
  • Negative test for breathalyzer alcohol and drugs of abuse and HIV antibody test at Screening
  • Agrees to protocol-defined use of effective contraception
  • Participants with Mild or Moderate Hepatic Impairment
  • Must have mild or moderate hepatic impairment
  • On a stable dose of medication and/or treatment regimen for at least 2 weeks before dosing as well as during the study
  • Clinical laboratory evaluations within the reference range for the test laboratory
  • Participants with normal hepatic function have no clinically significant findings from medical history, physical examination, Laboratory values within protocol defined parameters

Exclusion Criteria:

  • Any other investigational study drug trial within 5 half-lives of that investigational study drug or 30 days prior to dosing with Abiraterone acetate, whichever is longer
  • Inability to swallow four (4) 250 mg abiraterone acetate tablets
  • History of or current clinically significant medical illness that would potentially alter absorption and/or excretion of orally administered drugs
  • History or presence of a clinically significant abnormal ECG
  • Donation of blood or significant loss of blood within 56 days prior to Day 1 or planned donation of blood or plasma from Screening through 30 days after Day 1
  • Use of any prescription medications/products or any OTC, non-prescription unrelated to existing allowable stable medical conditions within 5 half-lives of that product or 7 days prior to dosing with abiraterone acetate, whichever is longer
  • Clinically significant renal laboratory findings
  • Participants with Mild or Moderate Hepatic Impairment will be excluded - any significant medical history other than hepatic impairment that may affect the interpretation of the data or which otherwise contraindicates participation in the study
  • Acute or exacerbating hepatitis, fluctuating or rapidly deteriorating hepatic function as indicated by widely varying or worsening of clinical and/or laboratory signs of hepatic impairment within 2 weeks
  • Autoimmune liver disease; Esophageal variceal bleeding within 6 months prior to Screening, unless successfully treated with banding, Gastric varices
  • Spontaneous bacterial peritonitis within 3 months prior to Screening
  • Portosystemic shunt, Organ transplant, Wilson's disease, Cholestatic liver disease (e g , primary biliary cirrhosis or primary sclerosing cholangitis)
  • Clinically significant laboratory findings except as related to hepatic impairment
  • Control Participants with Normal Hepatic Function Any significant laboratory results, including specifically Positive for Hepatitis B or C, Hemoglobin < 12 0 g/dL LFTs outside of normal limits

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: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

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: Cohort 1
Mild Hepatic participants administered to four 250 mg tablets (1000 mg) orally on Day 1.
Drug: Abiraterone acetate
On the morning of Day 1, each participant was given four 250 mg tablets of abiraterone acetate with 240 mL of room temperature tap water. Dosing followed at least a 10-hour fast from food (not including water).
Experimental: Cohort 2
Moderate Hepatic participants administered to four 250 mg tablets (1000 mg) orally on Day 1.
Drug: Abiraterone acetate
On the morning of Day 1, each participant was given four 250 mg tablets of abiraterone acetate with 240 mL of room temperature tap water. Dosing followed at least a 10-hour fast from food (not including water).
Experimental: Cohort 3
Normal Hepatic participants administered to four 250 mg tablets (1000 mg) orally on Day 1.
Drug: Abiraterone acetate
On the morning of Day 1, each participant was given four 250 mg tablets of abiraterone acetate with 240 mL of room temperature tap water. Dosing followed at least a 10-hour fast from food (not including water).

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 acetate
Time Frame: Up to 96 hours postdose
Up to 96 hours postdose

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
The number of Participants with adverse events
Time Frame: Approximately 36 days
Approximately 36 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.
Cougar Biotechnology, Inc.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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.
August 1, 2009

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.
April 1, 2010

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.
April 1, 2010

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).
October 31, 2013

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.
November 28, 2013

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 5, 2013

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.
December 5, 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.
November 28, 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.
November 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.
  • CR016948
  • COU-AA-011 (Other Identifier: Cougar Biotechnology, Inc.)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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