A Study of MDV3100 Versus Bicalutamide in Castrate Men With Metastatic Prostate Cancer

This study is ongoing, but not recruiting participants.
Sponsor:
Collaborator:
Medivation, Inc.
Information provided by (Responsible Party):
Astellas Pharma Inc
ClinicalTrials.gov Identifier:
NCT01288911
First received: February 1, 2011
Last updated: August 7, 2014
Last verified: August 2014
  Purpose

The purpose of this study is to determine the efficacy and safety of oral MDV3100 compared to bicalutamide in castrate men with metastatic prostate cancer who have progressed while on Luteinizing Hormone Receptor Hormone (LHRH) agonist/antagonist or after receiving a bilateral orchiectomy.


Condition Intervention Phase
Prostatic Neoplasms
Drug: MDV3100
Drug: Bicalutamide
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Randomized, Double-Blind, Phase II, Efficacy and Safety Study of MDV3100 Versus Bicalutamide in Castrate Men With Metastatic Prostate Cancer

Resource links provided by NLM:


Further study details as provided by Astellas Pharma Inc:

Primary Outcome Measures:
  • Progression Free Survival [ Time Frame: 24 months ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Prostate Specific Antigen (PSA) response [ Time Frame: 13 weeks ] [ Designated as safety issue: No ]
  • Time to Prostate Specific Antigen (PSA) progression [ Time Frame: 24 months ] [ Designated as safety issue: No ]
  • Safety assessed by recording adverse events, laboratory assessments, vital signs, physical examinations and electrocardiograms (ECGs) [ Time Frame: 33 months ] [ Designated as safety issue: No ]

Enrollment: 375
Study Start Date: February 2011
Estimated Study Completion Date: December 2014
Estimated Primary Completion Date: October 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: MDV3100 Drug: MDV3100
oral
Other Name: enzalutamide
Active Comparator: Bicalutamide Drug: Bicalutamide
oral
Other Name: Casodex

Detailed Description:

An open-label period has been added to the main protocol. Following unblinding at the end of the double-blind period and demonstration of a statistically significant advantage of enzalutamide over bicalutamide as assessed by the primary endpoint, all ongoing enzalutamide treated subjects and ongoing or previous bicalutamide treated subjects that meet entry criteria will be offered open-label enzalutamide at the discretion of the subject and study investigators.

  Eligibility

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

Inclusion Criteria:

  • Histologically confirmed adenocarcinoma of the prostate without neuroendocrine differentiation or small cell features
  • Ongoing androgen deprivation therapy with a Luteinizing Hormone Receptor Hormone (LHRH) agonist or antagonist at a stable dose and schedule within 4 weeks of randomization or bilateral orchiectomy (i.e., surgical or medical castration)
  • Metastatic disease documented by one of the following:

    • At least two bone lesions on bone scan, or
    • Soft tissue disease documented by computed tomography (CT)/ magnetic resonance imaging (MRI), or
    • Unequivocal pelvic adenopathy short axis >2.0 cm in diameter by computed tomography (CT)/ magnetic resonance imaging (MRI)
  • Progressive disease at study entry defined as one or more of the following three criteria occurring in the setting of castrate levels of testosterone:

    • Prostate Specific Antigen (PSA) progression defined by a minimum of three rising PSA levels with an interval of ≥ 1 week between each determination. The PSA value should be ≥ 2 µg/L (2 ng/mL);
    • Soft tissue disease progression defined by Response Evaluation Criteria in Solid Tumors (RECIST) 1.1;
    • Bone disease progression defined by two or more new lesions on bone scan
  • Asymptomatic or mildly symptomatic from prostate cancer (i.e. the score on the Brief Pain Inventory-Short Form (BPI-SF) Question #3 must be < 4); no use of opiate analgesics for prostate cancer-related pain currently or anytime within 4 weeks prior to randomization
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0-1, including subjects with decreased performance status not attributed to progressive and symptomatic prostate cancer
  • Estimated life expectancy of ≥ 12 months
  • Able to swallow the study drug and comply with study requirements
  • A male subject and his female spouse/partner who is of childbearing potential must use two acceptable methods of birth control (one of which must include a condom as a barrier method of contraception) starting at Screening and continuing throughout the study period, and for 3 months after final study drug administration. Two acceptable forms of birth control include:

    1. Condom (barrier method of contraception), AND
    2. In addition to a condom, one of the following acceptable forms of contraception is required:

      • Established use of oral, injected or implanted hormonal methods of contraception.
      • Placement of an intrauterine device (IUD) or intrauterine system (IUS).
      • Barrier methods of contraception: Occlusive cap (diaphragm or cervical/vault caps) with spermicidal foam/gel/film/cream/suppository.
      • Tubal ligation for at least 6 months prior to Screening
      • Vasectomy or other surgical castration at least 6 months prior to Screening

Exclusion Criteria:

  • Prior cytotoxic chemotherapy for prostate cancer
  • Severe concurrent disease, infection, or comorbidity that would make the subject inappropriate for enrollment
  • Known or suspected brain and/or skull metastasis or active epidural disease
  • History of another malignancy within the previous 5 years other than curatively treated non-melanomatous skin cancer
  • Current or prior treatment with estrogens and/or drugs with anti-androgenic properties such as spironolactone > 50 mg/day, or progestational agents for the treatment of prostate cancer within 6 months prior to randomization
  • Current or prior use of ketoconazole for the treatment of prostate cancer
  • Use of antiandrogens within 6 weeks prior to randomization
  • Documented prior disease progression while receiving antiandrogens. Disease progression defined as PSA progression, radiographic progression and/or clinical deterioration.
  • Current or prior treatment with 5-α reductase inhibitors or anabolic steroids within 6 months prior to randomization
  • Prior use of systemic glucocorticoids (the equivalent of 10 mg of prednisone) within 3 months prior to randomization or expectation of their use during the study
  • Radiation therapy to bone lesions or prostatic bed within 4 weeks prior to randomization
  • Major surgery within 2 months prior to randomization
  • History of seizure including febrile seizure or any condition that may predispose to seizure (e.g., prior stroke, brain arteriovenous malformation, head trauma with loss of consciousness requiring hospitalization). Also, current or prior treatment with anti-epileptic medications for the treatment of seizures or history of loss of consciousness or transient ischemic attack within 12 months prior to randomization
  • Clinically significant cardiovascular disease including myocardial infarction within past six months or uncontrolled angina within past three months
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01288911

  Show 99 Study Locations
Sponsors and Collaborators
Astellas Pharma Inc
Medivation, Inc.
Investigators
Study Director: Associate Medical Science Director Astellas Pharma Global Development
Principal Investigator: Principal Investigator Carolina Urologic Research Center
  More Information

No publications provided

Responsible Party: Astellas Pharma Inc
ClinicalTrials.gov Identifier: NCT01288911     History of Changes
Other Study ID Numbers: 9785-CL-0222, 2010-021868-15
Study First Received: February 1, 2011
Last Updated: August 7, 2014
Health Authority: United States: Food and Drug Administration
Canada: Health Canada
Belgium: Federal Agency for Medicinal Products and Health Products
France: Afssaps - Agence française de sécurité sanitaire des produits de santé (Saint-Denis)
Germany: Federal Institute for Drugs and Medical Devices
United Kingdom: Medicines and Healthcare Products Regulatory Agency
Romania: National Medicines Agency
Denmark: Danish Health and Medicines Authority

Keywords provided by Astellas Pharma Inc:
MDV3100
Prostate
Cancer
Metastatic
progressive
enzalutamide

Additional relevant MeSH terms:
Neoplasms
Prostatic Neoplasms
Genital Neoplasms, Male
Urogenital Neoplasms
Neoplasms by Site
Genital Diseases, Male
Prostatic Diseases
Bicalutamide
Androgen Antagonists
Hormone Antagonists
Hormones, Hormone Substitutes, and Hormone Antagonists
Physiological Effects of Drugs
Pharmacologic Actions
Antineoplastic Agents
Therapeutic Uses

ClinicalTrials.gov processed this record on August 20, 2014