An Efficacy and Safety Study of Abiraterone Acetate and Prednisone in Participants With Prostate Cancer Who Failed Androgen Deprivation and Docetaxel-Based Chemotherapy

Sponsor
Cougar Biotechnology, Inc. (Industry)
Overall Status
Completed
CT.gov ID
NCT00485303
Collaborator
(none)
58
14
1
52
4.1
0.1

Study Details

Study Description

Brief Summary

The purpose of this study is to evaluate the efficacy and safety of abiraterone acetate in participants with advanced prostate cancer (a disease in which cells in the prostate gland become abnormal and start to grow uncontrollably, forming tumors).

Condition or Disease Intervention/Treatment Phase
Phase 2

Detailed Description

This is an open-label (all people know the identity of the intervention), single-arm, multicenter (when more than one hospital or medical school team work on a medical research study) study to evaluate the anti-tumor activities and safety of abiraterone acetate in participants with prostate cancer who have failed androgen deprivation and docetaxel-based chemotherapy. Abiraterone acetate oral tablet will be administered as a total dose of 1000 milligram (mg) orally (by mouth) once daily after an overnight fast and prednisone/prednisolone will be administered as 5 mg oral tablet twice daily. Participants will be enrolled and treated up to 12 cycles (or longer, if they have not progressed and continue to benefit from treatment). The study will consist of 3 parts: Screening (14 days), Open-label Treatment; and follow-up (up to 60 months). Participants will be evaluated primarily for prostate specific antigen response according to Prostate Specific Antigen Working Group (PSAWG) criteria. Participants' safety will be monitored throughout the study.

Study Design

Study Type:
Interventional
Actual Enrollment :
58 participants
Allocation:
N/A
Intervention Model:
Single Group Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
A Phase II Open Label Study of CB7630 (Abiraterone Acetate) and Prednisone in Patients With Advanced Prostate Cancer Who Have Failed Androgen Deprivation and Docetaxel-Based Chemotherapy
Study Start Date :
Jun 1, 2007
Actual Primary Completion Date :
Oct 1, 2011
Actual Study Completion Date :
Oct 1, 2011

Arms and Interventions

Arm Intervention/Treatment
Experimental: Abiraterone

Abiraterone acetate 1000 milligram (mg) (4 oral tablets of 250 mg each) will be administered once daily along with 5 mg oral prednisolone tablet administered twice daily for 28-days dosing cycle and will be continued until disease progression or unacceptable toxicity.

Drug: Abiraterone acetate
Abiraterone acetate oral tablets 250 milligram (mg) each will be administered at a total dose of 1000 mg until documented disease progression or unacceptable toxicity.

Drug: Prednisone
Prednisone/Prednisolone 5 mg tablet will be taken orally twice daily.
Other Names:
  • CB7630
  • Outcome Measures

    Primary Outcome Measures

    1. Percentage of Participants With Prostate Specific Antigen (PSA) Response [Day 1 of each cycle (of 28 days each) up to Cycle 12]

      The PSA response was evaluated according to Prostate-Specific Antigen Working Group (PSAWG) criterion, which is, greater than or equal to 50 percent decrease in PSA from Baseline during the study, which would be subsequently confirmed by a measurement that is at least 4 or more weeks after initial documentation of PSA response.

    Secondary Outcome Measures

    1. Prostate-Specific Antigen Based Progression-free Survival (PSA-PFS) [Baseline and Day 1 of each cycle until first documented disease progression or up to 60 months]

      The PSA-PFS is defined as time to first PSA failure (that is, two consecutive increases in PSA of 50 percent and greater than or equal to 5 nanogram per milliliter, as per Prostate-Specific Antigen Working Group [PSAWG] criterion) or death or the start of secondary anti-tumor therapy, whichever occurs first. If a PSA progression or death does not occur, subject will be censored at the last PSA evaluation.

    2. Radiographic Progression Free Survival (PFS) [Baseline, Day 1 of Cycle 4, 7 and 10, and thereafter every third cycle until first documented disease progression or up to 60 months]

      The RAD-PFS is defined as the time from randomization to the earliest objective evidence of radiographic progression or death due to any cause. Progression is defined using Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.0, as at least a 20% increase in the sum of the longest diameter of target lesions, taking as reference the smallest sum longest diameter recorded since the treatment started or the appearance of one or more new lesions.

    3. Overall Survival (OS) [Every 3 months until death or up to 60 months]

      Overall survival is defined as the interval from the date of the first dose of abiraterone acetate to the date of death.

    4. Percentage of Participants With Objective Radiographic Response [Baseline, Day 1 of Cycle 4, 7 and 10, and thereafter every third cycle until first documented disease progression or up to 60 months]

      Percentage of participants with radiographic objective response is defined as the percentage of participants with complete response (CR) or partial response (PR) as best overall response based on reconciled radiographic disease assessment according to RECIST Version 1.0. The CR is disappearance of all lesions. The PR is at least 30 percent decrease in sum of the longest diameter of target lesions or persistence of one or more non-target lesion(s) or/and maintenance of tumor marker level above the normal limits.

    5. Time to PSA Progression [Day 8 of Cycle 1, thereafter Day 1 of each cycle up to end of study (60 months)]

      The time interval from first dose of abiraterone acetate to the date of PSA progression as defined by the Prostate-Specific Antigen Working Group (PSAWG) criteria. If a PSA progression does not occur, subject will be censored at the last PSA evaluation.

    6. Time to Radiographic Progression [Baseline, Day 1 of Cycle 4, 7 and 10, and thereafter every third cycle until first documented disease progression or up to 60 months]

      Time to radiographic progression is defined as the time from first dose until the first radiographic progression date that was confirmed.

    7. Shift From Baseline in Number of Participants With Eastern Cooperative Oncology Group (ECOG) Performance Status Score [Baseline and Day 1 of each cycle until first documented disease progression or up to 60 months]

      ECOG performance status score ranges from 0 to 5 where 0=fully active, perform all pre-disease activities without restriction. 1=restricted in physically strenuous activity but ambulatory, carry out work of a light or sedentary nature, 2=ambulatory, capable of self-care, unable to carry out any work activities, up and about more than (>) 50 percent of waking hours, 3=capable of limited self-care, confined to bed or chair >50 percent of waking hours, 4=completely disabled, not capable of any self-care, totally confined to bed or chair and 5=dead.

    8. Percentage of Participants With Clinical Benefit [Baseline, Day 1 of Cycle 4, 7 and 10, and thereafter every third cycle until first documented disease progression or up to 60 months]

      Clinical benefit was defined as an observation of at least 1 of the following: PSA response by PSAWG criteria; radiographic response by RECIST criteria; stable disease by RECIST criteria lasting 6 months; or improvement by at least 1 unit in ECOG performance status.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years and Older
    Sexes Eligible for Study:
    Male
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    • Histologically or cytologically confirmed adenocarcinoma (malignant epithelial tumor with a glandular organization)of the prostate (a gland in the male reproductive system found below the bladder and in front of the rectum), but not with neuroendocrine (specialized neurons that produce hormones, such as neuropeptides or biogenic amines) differentiation or of small cell histology

    • Prior chemotherapy (treatment of disease, usually cancer, by chemical agents) for prostate cancer with regimen(s) containing docetaxel

    • Documented prostate specific antigen (PSA) progression according to Prostate Specific Antigen Working Group (PSAWG) eligibility criteria with a PSA more than (>) 5 nanogram per milliliter (ng/mL) or objective progression by Response Evaluation Criteria in Solid Tumors (RESIST) criteria

    • Ongoing androgen deprivation with serum testosterone less than (<) 50 nanogram per deciliter (ng/dL)

    • Eastern Cooperative Oncology Group (ECOG) Performance Status of less than equal to (<=) 2 (Karnofsky Performance Status >= 50 percent)

    Exclusion Criteria:
    • Active or uncontrolled autoimmune disease (disorder in which a person's immune system attacks parts of his or her own body) that may require corticosteroid therapy

    • Serious or uncontrolled co-existent non-malignant disease, including active and uncontrolled infection

    • Uncontrolled hypertension (high blood pressure)

    • Hemoglobin <=9.0 gram per deciliter (g/dL) without growth factor or transfusion support

    • Abnormal liver (large organ that helps in many body functions, including digestion, metabolism, and storage of substances) function

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 UCLA Los Angeles California United States 90024
    2 Los Angeles California United States
    3 UCSF Comprehensive Cancer Center San Francisco California United States 94115
    4 San Francisco California United States
    5 John Hopkins Baltimore Maryland United States 21205
    6 Baltimore Maryland United States
    7 Masachussetts General Hospital Cancer Center Boston Massachusetts United States 02114
    8 Dana-Farber Cancer Institute Boston Massachusetts United States 02115
    9 Beth Israel Hospital Boston Massachusetts United States 02215
    10 Boston Massachusetts United States
    11 Memorial Sloan-Kettering Cancer Center New York New York United States 10021
    12 New York New York United States
    13 Royal Marsden Hospital Sutton United Kingdom
    14 Sutton United Kingdom

    Sponsors and Collaborators

    • Cougar Biotechnology, Inc.

    Investigators

    • Study Director: Cougar Biotechnology, Inc. Clinical Trial, Cougar Biotechnology, Inc.

    Study Documents (Full-Text)

    None provided.

    More Information

    Additional Information:

    Publications

    None provided.
    Responsible Party:
    Cougar Biotechnology, Inc.
    ClinicalTrials.gov Identifier:
    NCT00485303
    Other Study ID Numbers:
    • CR016921
    • COU-AA-004
    • 2007-002725-74
    First Posted:
    Jun 12, 2007
    Last Update Posted:
    Jul 2, 2013
    Last Verified:
    Jun 1, 2013
    Keywords provided by Cougar Biotechnology, Inc.
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details
    Pre-assignment Detail
    Arm/Group Title Abiraterone
    Arm/Group Description Abiraterone acetate 1000 milligram (mg) (4 oral tablets of 250 mg each) was administered once daily along with 5 mg oral prednisolone or prednisone tablet administered twice daily for 28-days dosing cycle and was continued until disease progression or unacceptable toxicity.
    Period Title: Overall Study
    STARTED 58
    COMPLETED 2
    NOT COMPLETED 56

    Baseline Characteristics

    Arm/Group Title Abiraterone
    Arm/Group Description Abiraterone acetate 1000 milligram (mg) (4 oral tablets of 250 mg each) was administered once daily along with 5 mg oral prednisolone or prednisone tablet administered twice daily for 28-days dosing cycle and was continued until disease progression or unacceptable toxicity.
    Overall Participants 58
    Age (Years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [Years]
    68.6
    (9.78)
    Sex: Female, Male (Count of Participants)
    Female
    0
    0%
    Male
    58
    100%
    Region of Enrollment (Number) [Number]
    United Kingdom
    4
    6.9%
    United States
    54
    93.1%

    Outcome Measures

    1. Primary Outcome
    Title Percentage of Participants With Prostate Specific Antigen (PSA) Response
    Description The PSA response was evaluated according to Prostate-Specific Antigen Working Group (PSAWG) criterion, which is, greater than or equal to 50 percent decrease in PSA from Baseline during the study, which would be subsequently confirmed by a measurement that is at least 4 or more weeks after initial documentation of PSA response.
    Time Frame Day 1 of each cycle (of 28 days each) up to Cycle 12

    Outcome Measure Data

    Analysis Population Description
    Per protocol population defined as participants who had received at least one dose of abiraterone acetate and must had PSA evaluation/tumor assessment at Baseline and at least 1 post-baseline, and had received a minimum of 3 cycles of study treatment.
    Arm/Group Title Abiraterone
    Arm/Group Description Abiraterone acetate 1000 milligram (mg) (4 oral tablets of 250 mg each) was administered once daily along with 5 mg oral prednisolone or prednisone tablet administered twice daily for 28-days dosing cycle and was continued until disease progression or unacceptable toxicity.
    Measure Participants 58
    Number (95% Confidence Interval) [percentage of participants]
    37.9
    65.3%
    2. Secondary Outcome
    Title Prostate-Specific Antigen Based Progression-free Survival (PSA-PFS)
    Description The PSA-PFS is defined as time to first PSA failure (that is, two consecutive increases in PSA of 50 percent and greater than or equal to 5 nanogram per milliliter, as per Prostate-Specific Antigen Working Group [PSAWG] criterion) or death or the start of secondary anti-tumor therapy, whichever occurs first. If a PSA progression or death does not occur, subject will be censored at the last PSA evaluation.
    Time Frame Baseline and Day 1 of each cycle until first documented disease progression or up to 60 months

    Outcome Measure Data

    Analysis Population Description
    Per protocol population defined as participants who had received at least one dose of abiraterone acetate and must had PSA evaluation/tumor assessment at Baseline and at least 1 post-baseline, and had received a minimum of 3 cycles of study treatment.
    Arm/Group Title Abiraterone
    Arm/Group Description Abiraterone acetate 1000 milligram (mg) (4 oral tablets of 250 mg each) was administered once daily along with 5 mg oral prednisolone or prednisone tablet administered twice daily for 28-days dosing cycle and was continued until disease progression or unacceptable toxicity.
    Measure Participants 58
    Median (95% Confidence Interval) [days]
    141
    3. Secondary Outcome
    Title Radiographic Progression Free Survival (PFS)
    Description The RAD-PFS is defined as the time from randomization to the earliest objective evidence of radiographic progression or death due to any cause. Progression is defined using Response Evaluation Criteria in Solid Tumors (RECIST) Version 1.0, as at least a 20% increase in the sum of the longest diameter of target lesions, taking as reference the smallest sum longest diameter recorded since the treatment started or the appearance of one or more new lesions.
    Time Frame Baseline, Day 1 of Cycle 4, 7 and 10, and thereafter every third cycle until first documented disease progression or up to 60 months

    Outcome Measure Data

    Analysis Population Description
    [Not Specified]
    Arm/Group Title Abiraterone
    Arm/Group Description Abiraterone acetate 1000 milligram (mg) (4 oral tablets of 250 mg each) was administered once daily along with 5 mg oral prednisolone or prednisone tablet administered twice daily for 28-days dosing cycle and was continued until disease progression or unacceptable toxicity.
    Measure Participants 58
    Median (95% Confidence Interval) [days]
    126
    4. Secondary Outcome
    Title Overall Survival (OS)
    Description Overall survival is defined as the interval from the date of the first dose of abiraterone acetate to the date of death.
    Time Frame Every 3 months until death or up to 60 months

    Outcome Measure Data

    Analysis Population Description
    Per protocol population defined as participants who had received at least one dose of abiraterone acetate and must had PSA evaluation/tumor assessment at Baseline and at least 1 post-baseline, and had received a minimum of 3 cycles of study treatment.
    Arm/Group Title Abiraterone
    Arm/Group Description Abiraterone acetate 1000 milligram (mg) (4 oral tablets of 250 mg each) was administered once daily along with 5 mg oral prednisolone or prednisone tablet administered twice daily for 28-days dosing cycle and was continued until disease progression or unacceptable toxicity.
    Measure Participants 58
    Median (95% Confidence Interval) [days]
    492
    5. Secondary Outcome
    Title Percentage of Participants With Objective Radiographic Response
    Description Percentage of participants with radiographic objective response is defined as the percentage of participants with complete response (CR) or partial response (PR) as best overall response based on reconciled radiographic disease assessment according to RECIST Version 1.0. The CR is disappearance of all lesions. The PR is at least 30 percent decrease in sum of the longest diameter of target lesions or persistence of one or more non-target lesion(s) or/and maintenance of tumor marker level above the normal limits.
    Time Frame Baseline, Day 1 of Cycle 4, 7 and 10, and thereafter every third cycle until first documented disease progression or up to 60 months

    Outcome Measure Data

    Analysis Population Description
    Per protocol population defined as participants who had received at least 1 dose of abiraterone acetate and must had PSA evaluation/tumor assessment at Baseline and at least 1 post-baseline, and had received a minimum of 3 cycles of study treatment. "N" (number of participants analyzed) =participants who were evaluable for this measure.
    Arm/Group Title Abiraterone
    Arm/Group Description Abiraterone acetate 1000 milligram (mg) (4 oral tablets of 250 mg each) was administered once daily along with 5 mg oral prednisolone or prednisone tablet administered twice daily for 28-days dosing cycle and was continued until disease progression or unacceptable toxicity.
    Measure Participants 48
    Complete response (CR)
    0
    0%
    Partial Response (PR)
    6.3
    10.9%
    6. Secondary Outcome
    Title Time to PSA Progression
    Description The time interval from first dose of abiraterone acetate to the date of PSA progression as defined by the Prostate-Specific Antigen Working Group (PSAWG) criteria. If a PSA progression does not occur, subject will be censored at the last PSA evaluation.
    Time Frame Day 8 of Cycle 1, thereafter Day 1 of each cycle up to end of study (60 months)

    Outcome Measure Data

    Analysis Population Description
    Per protocol population defined as participants who had received at least one dose of abiraterone acetate and must had PSA evaluation/tumor assessment at Baseline and at least 1 post-baseline, and had received a minimum of 3 cycles of study treatment.
    Arm/Group Title Abiraterone
    Arm/Group Description Abiraterone acetate 1000 milligram (mg) (4 oral tablets of 250 mg each) was administered once daily along with 5 mg oral prednisolone or prednisone tablet administered twice daily for 28-days dosing cycle and was continued until disease progression or unacceptable toxicity.
    Measure Participants 58
    Median (95% Confidence Interval) [days]
    169
    7. Secondary Outcome
    Title Time to Radiographic Progression
    Description Time to radiographic progression is defined as the time from first dose until the first radiographic progression date that was confirmed.
    Time Frame Baseline, Day 1 of Cycle 4, 7 and 10, and thereafter every third cycle until first documented disease progression or up to 60 months

    Outcome Measure Data

    Analysis Population Description
    Per protocol population defined as participants who had received at least one dose of abiraterone acetate and must had PSA evaluation/tumor assessment at Baseline and at least 1 post-baseline, and had received a minimum of 3 cycles of study treatment.
    Arm/Group Title Abiraterone
    Arm/Group Description Abiraterone acetate 1000 milligram (mg) (4 oral tablets of 250 mg each) was administered once daily along with 5 mg oral prednisolone or prednisone tablet administered twice daily for 28-days dosing cycle and was continued until disease progression or unacceptable toxicity.
    Measure Participants 58
    Median (95% Confidence Interval) [days]
    88
    8. Secondary Outcome
    Title Shift From Baseline in Number of Participants With Eastern Cooperative Oncology Group (ECOG) Performance Status Score
    Description ECOG performance status score ranges from 0 to 5 where 0=fully active, perform all pre-disease activities without restriction. 1=restricted in physically strenuous activity but ambulatory, carry out work of a light or sedentary nature, 2=ambulatory, capable of self-care, unable to carry out any work activities, up and about more than (>) 50 percent of waking hours, 3=capable of limited self-care, confined to bed or chair >50 percent of waking hours, 4=completely disabled, not capable of any self-care, totally confined to bed or chair and 5=dead.
    Time Frame Baseline and Day 1 of each cycle until first documented disease progression or up to 60 months

    Outcome Measure Data

    Analysis Population Description
    Per protocol population defined as participants who had received at least one dose of abiraterone acetate and must had PSA evaluation/tumor assessment at Baseline and at least 1 post-baseline, and had received a minimum of 3 cycles of study treatment. 'N' (number of participants analyzed) = participants who were evaluable for this measure.
    Arm/Group Title Abiraterone
    Arm/Group Description Abiraterone acetate 1000 milligram (mg) (4 oral tablets of 250 mg each) was administered once daily along with 5 mg oral prednisolone or prednisone tablet administered twice daily for 28-days dosing cycle and was continued until disease progression or unacceptable toxicity.
    Measure Participants 57
    Baseline:0; Best Post-dose:0
    22
    37.9%
    Baseline:0; Best Post-dose:1
    2
    3.4%
    Baseline:0; Best Post-dose:2
    0
    0%
    Baseline:0; Best Post-dose:3
    0
    0%
    Baseline:0; Best Post-dose:4
    0
    0%
    Baseline:1; Best Post-dose:0
    14
    24.1%
    Baseline:1; Best Post-dose:1
    15
    25.9%
    Baseline:1; Best Post-dose:2
    2
    3.4%
    Baseline:1; Best Post-dose:3
    0
    0%
    Baseline:1; Best Post-dose:4
    0
    0%
    Baseline:2; Best Post-dose:0
    1
    1.7%
    Baseline:2; Best Post-dose:1
    1
    1.7%
    Baseline:2; Best Post-dose:2
    0
    0%
    Baseline:2; Best Post-dose:3
    0
    0%
    Baseline:2; Best Post-dose:4
    0
    0%
    Baseline:0; Worst Post-dose:0
    6
    10.3%
    Baseline:0; Worst Post-dose:1
    17
    29.3%
    Baseline:0; Worst Post-dose:2
    1
    1.7%
    Baseline:0; Worst Post-dose:3
    0
    0%
    Baseline:0; Worst Post-dose:4
    0
    0%
    Baseline:1; Worst Post-dose:0
    0
    0%
    Baseline:1; Worst Post-dose:1
    24
    41.4%
    Baseline:1; Worst Post-dose:2
    6
    10.3%
    Baseline:1; Worst Post-dose:3
    1
    1.7%
    Baseline:1; Worst Post-dose:4
    0
    0%
    Baseline:2; Worst Post-dose:0
    0
    0%
    Baseline:2; Worst Post-dose:1
    0
    0%
    Baseline:2; Worst Post-dose:2
    2
    3.4%
    Baseline:2; Worst Post-dose:3
    0
    0%
    Baseline:2; Worst Post-dose:4
    0
    0%
    9. Secondary Outcome
    Title Percentage of Participants With Clinical Benefit
    Description Clinical benefit was defined as an observation of at least 1 of the following: PSA response by PSAWG criteria; radiographic response by RECIST criteria; stable disease by RECIST criteria lasting 6 months; or improvement by at least 1 unit in ECOG performance status.
    Time Frame Baseline, Day 1 of Cycle 4, 7 and 10, and thereafter every third cycle until first documented disease progression or up to 60 months

    Outcome Measure Data

    Analysis Population Description
    Per protocol population defined as participants who had received at least one dose of abiraterone acetate and must had PSA evaluation/tumor assessment at Baseline and at least 1 post-baseline, and had received a minimum of 3 cycles of study treatment.
    Arm/Group Title Abiraterone
    Arm/Group Description Abiraterone acetate 1000 milligram (mg) (4 oral tablets of 250 mg each) was administered once daily along with 5 mg oral prednisolone or prednisone tablet administered twice daily for 28-days dosing cycle and was continued until disease progression or unacceptable toxicity.
    Measure Participants 58
    Disease Stabilization
    12
    20.7%
    Change in participant ECOG score
    16
    27.6%

    Adverse Events

    Time Frame Day 8 of Cycle 1 up to End of Study
    Adverse Event Reporting Description
    Arm/Group Title Abiraterone
    Arm/Group Description Abiraterone acetate 1000 milligram (mg) (4 oral tablets of 250 mg each) was administered once daily along with 5 mg oral prednisolone or prednisone tablet administered twice daily for 28-days dosing cycle and was continued until disease progression or unacceptable toxicity.
    All Cause Mortality
    Abiraterone
    Affected / at Risk (%) # Events
    Total / (NaN)
    Serious Adverse Events
    Abiraterone
    Affected / at Risk (%) # Events
    Total 23/58 (39.7%)
    Blood and lymphatic system disorders
    Anaemia 1/58 (1.7%)
    Cardiac disorders
    Angina pectoris 1/58 (1.7%)
    Atrial fibrillation 2/58 (3.4%)
    Supraventricular tachycardia 1/58 (1.7%)
    Ventricular tachycardia 1/58 (1.7%)
    Gastrointestinal disorders
    Constipation 1/58 (1.7%)
    Vomiting 1/58 (1.7%)
    General disorders
    Disease progression 1/58 (1.7%)
    Fatigue 2/58 (3.4%)
    Pyrexia 4/58 (6.9%)
    Infections and infestations
    Cellulitis 1/58 (1.7%)
    Pneumonia 2/58 (3.4%)
    Injury, poisoning and procedural complications
    Sternal fracture 1/58 (1.7%)
    Investigations
    Alanine aminotransferase increased 1/58 (1.7%)
    Aspartate aminotransferase increased 1/58 (1.7%)
    Blood amylase increased 1/58 (1.7%)
    Blood creatinine increased 1/58 (1.7%)
    Blood potassium increased 1/58 (1.7%)
    Haemoglobin decreased 2/58 (3.4%)
    White blood cell count decreased 1/58 (1.7%)
    Metabolism and nutrition disorders
    Dehydration 1/58 (1.7%)
    Hyperglycaemia 1/58 (1.7%)
    Musculoskeletal and connective tissue disorders
    Back pain 4/58 (6.9%)
    Muscular weakness 2/58 (3.4%)
    Musculoskeletal pain 1/58 (1.7%)
    Myalgia 1/58 (1.7%)
    Myositis 1/58 (1.7%)
    Pain in extremity 2/58 (3.4%)
    Nervous system disorders
    Dizziness 2/58 (3.4%)
    Spinal cord compression 2/58 (3.4%)
    Syncope 2/58 (3.4%)
    Renal and urinary disorders
    Haematuria 2/58 (3.4%)
    Haemorrhage urinary tract 1/58 (1.7%)
    Renal failure 2/58 (3.4%)
    Reproductive system and breast disorders
    Pelvic pain 1/58 (1.7%)
    Scrotal swelling 1/58 (1.7%)
    Respiratory, thoracic and mediastinal disorders
    Dyspnoea 1/58 (1.7%)
    Hypoxia 1/58 (1.7%)
    Lung infiltration 1/58 (1.7%)
    Pneumonitis 1/58 (1.7%)
    Skin and subcutaneous tissue disorders
    Exfoliative rash 1/58 (1.7%)
    Skin disorder 1/58 (1.7%)
    Vascular disorders
    Aortic stenosis 1/58 (1.7%)
    Hypotension 1/58 (1.7%)
    Other (Not Including Serious) Adverse Events
    Abiraterone
    Affected / at Risk (%) # Events
    Total 57/58 (98.3%)
    Blood and lymphatic system disorders
    Anaemia 15/58 (25.9%)
    Lymphopenia 6/58 (10.3%)
    Gastrointestinal disorders
    Abdominal pain 4/58 (6.9%)
    Constipation 15/58 (25.9%)
    Diarrhoea 10/58 (17.2%)
    Nausea 11/58 (19%)
    Vomiting 9/58 (15.5%)
    General disorders
    Fatigue 23/58 (39.7%)
    Oedema peripheral 18/58 (31%)
    Pain 4/58 (6.9%)
    Pyrexia 9/58 (15.5%)
    Infections and infestations
    Upper respiratory tract infection 4/58 (6.9%)
    Urinary tract infection 6/58 (10.3%)
    Investigations
    Alanine aminotransferase increased 6/58 (10.3%)
    Aspartate aminotransferase increased 15/58 (25.9%)
    Blood albumin decreased 12/58 (20.7%)
    Blood alkaline phosphatase increased 4/58 (6.9%)
    Weight decreased 10/58 (17.2%)
    Metabolism and nutrition disorders
    Anorexia 8/58 (13.8%)
    Hyperglycaemia 12/58 (20.7%)
    Hyperkalaemia 7/58 (12.1%)
    Hypoglycaemia 5/58 (8.6%)
    Hypokalaemia 4/58 (6.9%)
    Musculoskeletal and connective tissue disorders
    Arthralgia 13/58 (22.4%)
    Back pain 15/58 (25.9%)
    Bone pain 7/58 (12.1%)
    Flank pain 3/58 (5.2%)
    Groin pain 5/58 (8.6%)
    Muscle spasms 6/58 (10.3%)
    Muscular weakness 6/58 (10.3%)
    Musculoskeletal pain 9/58 (15.5%)
    Pain in extremity 9/58 (15.5%)
    Nervous system disorders
    Headache 3/58 (5.2%)
    Hypoaesthesia 4/58 (6.9%)
    Peripheral sensory neuropathy 9/58 (15.5%)
    Psychiatric disorders
    Anxiety 4/58 (6.9%)
    Depressed mood 3/58 (5.2%)
    Insomnia 4/58 (6.9%)
    Renal and urinary disorders
    Dysuria 4/58 (6.9%)
    Haemorrhage urinary tract 5/58 (8.6%)
    Micturition urgency 3/58 (5.2%)
    Nocturia 4/58 (6.9%)
    Pollakiuria 4/58 (6.9%)
    Urinary incontinence 3/58 (5.2%)
    Respiratory, thoracic and mediastinal disorders
    Cough 5/58 (8.6%)
    Dyspnoea 10/58 (17.2%)
    Productive cough 3/58 (5.2%)
    Skin and subcutaneous tissue disorders
    Ecchymosis 4/58 (6.9%)
    Vascular disorders
    Hot flush 6/58 (10.3%)
    Hypertension 3/58 (5.2%)

    Limitations/Caveats

    [Not Specified]

    More Information

    Certain Agreements

    Principal Investigators are NOT employed by the organization sponsoring the study.

    The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a period that is less than or equal to 60 days. The sponsor cannot require changes to the communication and cannot extend the embargo.

    Results Point of Contact

    Name/Title Senior Director, Clinical Research
    Organization Janssen Research & Development, 10990 Wilshire Blvd, Suite 1200, Los Angeles, California 90024
    Phone (310) 943-8040 ext 2917
    Email
    Responsible Party:
    Cougar Biotechnology, Inc.
    ClinicalTrials.gov Identifier:
    NCT00485303
    Other Study ID Numbers:
    • CR016921
    • COU-AA-004
    • 2007-002725-74
    First Posted:
    Jun 12, 2007
    Last Update Posted:
    Jul 2, 2013
    Last Verified:
    Jun 1, 2013