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Abiraterone Acetate in Castration-Resistant Prostate Cancer Previously Treated With Docetaxel-Based Chemotherapy
This study is currently recruiting participants.
Verified by Cougar Biotechnology, Inc., April 2009
First Received: March 13, 2008   Last Updated: April 10, 2009   History of Changes
Sponsored by: Cougar Biotechnology, Inc.
Information provided by: Cougar Biotechnology, Inc.
ClinicalTrials.gov Identifier: NCT00638690
  Purpose

This is a phase 3 study to compare the clinical benefit of abiraterone acetate plus prednisone with placebo plus prednisone in patients with metastatic castration-resistant prostate cancer (CRPC) who have failed one or two chemotherapy regimens. At least one of the previous chemotherapies must have contained docetaxel


Condition Intervention Phase
Metastatic Castration-Resistant Prostate Cancer
Drug: placebo plus prednisone/prednisolone
Drug: abiraterone acetate plus prednisone/prednisolone
Phase III

MedlinePlus related topics: Cancer Prostate Cancer
Drug Information available for: Prednisolone Prednisolone acetate Prednisone Depo-medrol Medrol veriderm Methylprednisolone Docetaxel CB 7630 Abiraterone Prednisolone sodium phosphate Prednisolone Sodium Succinate Methylprednisolone Sodium Succinate Methylprednisolone hemisuccinate 6-Methylprednisolone
U.S. FDA Resources
Study Type: Interventional
Study Design: Treatment, Randomized, Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Placebo Control, Parallel Assignment, Safety/Efficacy Study
Official Title: A Phase 3, Randomized, Double-Blind, Placebo-Controlled Study of Abiraterone Acetate (CB7630) Plus Prednisone in Patients With Metastatic Castration-Resistant Prostate Cancer Who Have Failed Docetaxel-Based Chemotherapy

Further study details as provided by Cougar Biotechnology, Inc.:

Primary Outcome Measures:
  • Overall Survival [ Time Frame: During the Study ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Proportion of patients achieving a PSA decline ≥ 50% according to Prostate Specific Antigen Working Group (PSAWG) criteria [ Time Frame: During Study Treatment ] [ Designated as safety issue: No ]

Estimated Enrollment: 1158
Study Start Date: April 2008
Estimated Study Completion Date: June 2011
Estimated Primary Completion Date: June 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
1: Experimental
abiraterone acetate plus prednisone/prednisolone
Drug: abiraterone acetate plus prednisone/prednisolone
1000mg Daily/5mg Twice Daily
2: Placebo Comparator
placebo plus prednisone/prednisolone
Drug: placebo plus prednisone/prednisolone
1000mg Daily/5mg Twice Daily

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Male
Accepts Healthy Volunteers:   No
Criteria

Major Inclusion Criteria:

  • Metastatic Castration-Resistant Prostate Cancer
  • Progression after one or two prior cytotoxic chemotherapies. At least one chemotherapy must have contained docetaxel
  • ECOG Performance Status less than/ equal to 2
  • Medical or surgical castration with testosterone less than 50 ng/dL
  • Adequate bone marrow, hepatic and renal function
  • Potassium greater than/ equal to 3.5 mmol/L
  • Able to swallow the study drug whole as a tablet
  • Informed Consent

Major Exclusion Criteria:

  • More than two prior cytotoxic chemotherapy regimens
  • Prior Ketoconazole for prostate cancer
  • Prior Abiraterone acetate or other CYP17 inhibitor or investigational agents targeting the androgen receptor for prostate cancer
  • Uncontrolled hypertension
  • Active or symptomatic viral hepatitis or chronic liver disease
  • History of pituitary or adrenal dysfunction
  • Clinically significant heart disease
  • Other malignancy
  • Known brain metastasis
  • GI disorder affecting absorption
  • Not willing to use contraception
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00638690

  Show 154 Study Locations
Sponsors and Collaborators
Cougar Biotechnology, Inc.
Investigators
Study Chair: Howard I Scher, MD Memorial Sloan-Kettering Cancer Center
Study Chair: JS de Bono, MD FRCP PhD ICR/Royal Marsden Hospital
  More Information

Additional Information:
No publications provided

Responsible Party: Cougar Biotechnology, Inc. ( Christopher M. Haqq MD PhD )
Study ID Numbers: COU-AA-301
Study First Received: March 13, 2008
Last Updated: April 10, 2009
ClinicalTrials.gov Identifier: NCT00638690     History of Changes
Health Authority: United States: Food and Drug Administration;   European Union: European Medicines Agency;   Australia: National Health and Medical Research Council;   Canada: Health Canada

Keywords provided by Cougar Biotechnology, Inc.:
Metastatic Castration Resistant Prostate Cancer
CRPC
Abiraterone Acetate
CB7630

Study placed in the following topic categories:
Anti-Inflammatory Agents
Prednisone
Antineoplastic Agents, Hormonal
Genital Neoplasms, Male
Prostatic Diseases
Methylprednisolone
Hormone Antagonists
Hormones, Hormone Substitutes, and Hormone Antagonists
Antiemetics
Methylprednisolone acetate
Urogenital Neoplasms
Prednisolone acetate
Genital Diseases, Male
Neuroprotective Agents
Hormones
Glucocorticoids
Docetaxel
Prednisolone
Peripheral Nervous System Agents
Prostatic Neoplasms
Methylprednisolone Hemisuccinate

Additional relevant MeSH terms:
Anti-Inflammatory Agents
Prednisone
Prostatic Diseases
Genital Neoplasms, Male
Methylprednisolone
Antineoplastic Agents
Physiological Effects of Drugs
Hormones, Hormone Substitutes, and Hormone Antagonists
Antiemetics
Prednisolone acetate
Urogenital Neoplasms
Neuroprotective Agents
Hormones
Neoplasms by Site
Therapeutic Uses
Methylprednisolone Hemisuccinate
Antineoplastic Agents, Hormonal
Gastrointestinal Agents
Methylprednisolone acetate
Genital Diseases, Male
Protective Agents
Glucocorticoids
Pharmacologic Actions
Neoplasms
Autonomic Agents
Prednisolone
Peripheral Nervous System Agents
Central Nervous System Agents
Prostatic Neoplasms

ClinicalTrials.gov processed this record on May 06, 2009