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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/ct2/show/NCT01212991
Registration number
NCT01212991
Ethics application status
Date submitted
29/09/2010
Date registered
1/10/2010
Date last updated
17/03/2020
Titles & IDs
Public title
A Safety and Efficacy Study of Oral MDV3100 in Chemotherapy-Naive Patients With Progressive Metastatic Prostate Cancer
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Scientific title
PREVAIL: A MULTINATIONAL PHASE 3, RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED EFFICACY AND SAFETY STUDY OF ORAL MDV3100 IN CHEMOTHERAPY-NAÏVE PATIENTS WITH PROGRESSIVE METASTATIC PROSTATE CANCER WHO HAVE FAILED ANDROGEN DEPRIVATION THERAPY
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Secondary ID [1]
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2010-020821-41
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Secondary ID [2]
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MDV3100-03
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Universal Trial Number (UTN)
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Trial acronym
PREVAIL
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Prostate Cancer
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Condition category
Condition code
Cancer
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Prostate
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Drugs - Enzalutamide
Treatment: Drugs - Placebo
Experimental: Enzalutamide -
Placebo Comparator: Placebo -
Treatment: Drugs: Enzalutamide
Participants received enzalutamide 160 mg, administered as four 40-mg capsules, once per day by mouth. Study drug treatment continued until disease progression (evidence of radiographic progression, a skeletal-related event, or clinical progression) and the initiation of a cytotoxic chemotherapy or an investigational agent, unacceptable toxicity, or withdrawal.
Treatment: Drugs: Placebo
Participants received placebo, administered as four capsules, once per day by mouth. Study drug treatment continued until disease progression (evidence of radiographic progression, a skeletal-related event, or clinical progression) and the initiation of a cytotoxic chemotherapy or an investigational agent, unacceptable toxicity, or withdrawal.
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Intervention code [1]
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Treatment: Drugs
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Overall Survival
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Assessment method [1]
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Overall survival was defined as the time from randomization to death due to any cause. For patients who were alive at the time of the analysis data cutoff, overall survival was censored at the last date the patient was known to be alive or analysis data cutoff date, whichever was first. This included patients who were known to have died after the data analysis cutoff date. Patients with no post-baseline survival information were censored on the date of randomization.
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Timepoint [1]
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During study period (up to 3 years)
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Primary outcome [2]
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Radiographic Progression-free Survival (rPFS)
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Assessment method [2]
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Radiographic progression-free survival was defined as the time from randomization to the first objective evidence of radiographic disease progression assessed by independent central radiology review or death due to any cause within 168 days after treatment discontinuation, whichever was first. Radiographic disease progression was evaluated by CT scan or MRI and radionuclide bone scans at regularly scheduled visits. Radiographic disease progression in bone required a confirmatory scan. Radiographic disease progression in soft tissue did not require a confirmatory scan for purposes of analysis. Radiographic disease progression was evaluated by independent central radiology review using RECIST 1.1 for soft tissue disease and PCWG2 guidelines for bone disease. Patients who did not reach the endpoint were censored at their last assessment.
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Timepoint [2]
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During study period (up to 20 months)
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Secondary outcome [1]
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Time to First Skeletal-related Event
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Assessment method [1]
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Time to first skeletal-related event was defined as the time from randomization to the date of the first occurrence of a skeletal-related event for each patient. A skeletal-related event was defined as radiation therapy or surgery to bone for prostate cancer, pathological bone fracture, spinal cord compression, or initiation/change in antineoplastic therapy to treat bone pain from prostate cancer. Skeletal-related events were recorded at each scheduled and unscheduled study visit and during long-term follow-up if a skeletal-related event was not documented previously. Patients who did not have a skeletal-related event at the time of the analysis data cutoff were censored at the date of last assessment indicating no evidence of skeletal-related event. Patients with no postbaseline assessments were censored on the date of randomization.
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Timepoint [1]
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During study period (up to 3 years)
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Secondary outcome [2]
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Time to Initiation of Cytotoxic Chemotherapy
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Assessment method [2]
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The time to initiation of cytotoxic chemotherapy is defined as the time from randomization to the date of initiation of cytotoxic chemotherapy for the treatment of prostate cancer for each patient. For patients who did not start cytotoxic chemotherapy at the time of the analysis data cutoff, time to initiation of cytotoxic chemotherapy was censored at the date of last assessment where no cytotoxic chemotherapy was indicated or at the analysis data cutoff date, whichever was first. Time to initiation of cytotoxic chemotherapy for patients with no postbaseline assessments was censored on the date of randomization.
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Timepoint [2]
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During study period (up to 3 years)
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Secondary outcome [3]
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Time to Prostate-specific Antigen (PSA) Progression
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Assessment method [3]
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Time to PSA progression was defined as the time from randomization to date of first confirmed observation of PSA progression for each patient. For patients with PSA declines at week 13, the PSA progression date was defined as the date that a = 25% increase and an absolute increase of = 2 ng/mL above the nadir was documented, and confirmed 3 or more weeks later. For patients with no PSA decline at week 13, the PSA progression date was defined as the date that a = 25% increase and an absolute increase of = 2 ng/mL above baseline was documented, and confirmed 3 or more weeks later. For patients who did not have confirmed PSA progression at the time of the analysis data cutoff, time to PSA progression was censored at the date of the last PSA assessment showing no evidence of confirmed PSA progression or the analysis data cutoff date, whichever was first. Time to PSA progression for patients with no postbaseline assessments was censored on the date of randomization.
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Timepoint [3]
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Secondary outcome [4]
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Percentage of Patients With Prostate Specific Antigen (PSA) Response = 50%
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Assessment method [4]
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PSA response was defined as a = 50% reduction in PSA from baseline to the lowest postbaseline PSA value and required confirmation by a consecutive assessment at least 3 weeks later. Patients were evaluable for PSA response rate if a patient had a PSA level measured at baseline and at least one postbaseline assessment.
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Timepoint [4]
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During study period (up to 3 years)
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Secondary outcome [5]
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Best Overall Soft Tissue Response
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Assessment method [5]
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The best overall soft tissue objective response is defined as partial response [PR] or complete response [CR] while on study treatment based on investigator assessments of target, nontarget, and new lesions using RECIST 1.1. Soft tissue was assessed by CT or MRI at regularly scheduled visits. Only patients with measurable soft tissue disease (ie, at least 1 target lesion identified per RECIST 1.1) at screening are included in this analysis. All percentages are based on number of participants with measurable soft tissue disease at screening in each treatment group.
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Timepoint [5]
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During study period (up to 3 years)
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Eligibility
Key inclusion criteria
Randomized, Double Blind Treatment Period:
- Histologically confirmed adenocarcinoma of the prostate without neuroendocrine
differentiation or small cell features
- Ongoing androgen deprivation therapy with a GnRH analogue or bilateral orchiectomy
- Progressive disease despite androgen deprivation therapy as defined by rising PSA
levels or progressive soft tissue or bony disease
- No prior treatment with cytotoxic chemotherapy
- Asymptomatic or mildly symptomatic from prostate cancer
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Males
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Can healthy volunteers participate?
No
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Key exclusion criteria
- Severe concurrent disease, infection, or co-morbidity that, in the judgment of the
Investigator, would make the patient inappropriate for enrollment
- Known or suspected brain metastasis or active leptomeningeal disease
- History of another malignancy within the previous 5 years other than curatively
treated non-melanomatous skin cancer
Open-Label Treatment Period:
The following inclusion criteria apply to patients receiving enzalutamide or placebo during
double-blind treatment.
Eligible patients must meet all inclusion criteria.
- Received randomized double-blind treatment in PREVAIL;
- Open-label day 1 visit is within 6 months after this amendment is approved and becomes
effective at the study site;
- Is willing to maintain androgen deprivation therapy with a gonadotropin-releasing
hormone (GnRH) agonist/antagonist or has had a bilateral orchiectomy;
The exclusion criteria apply only to patients starting new treatment with enzalutamide
after receiving placebo as randomized treatment. Each patient must not meet any of the
following criteria:
- Has taken commercially available enzalutamide (Xtandi);
- Severe concurrent disease, infection, or co-morbidity that, in the judgment of the
Investigator, would make the patient inappropriate for enrollment
- Known or suspected brain metastasis or active leptomeningeal disease
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people receiving the treatment/s
The people assessing the outcomes
The people analysing the results/data
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Intervention assignment
Parallel
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Other design features
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Phase
Phase 3
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
16/09/2010
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
14/02/2019
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Sample size
Target
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Accrual to date
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Final
1717
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Recruitment in Australia
Recruitment state(s)
NSW,QLD,SA,VIC
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Recruitment hospital [1]
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Concord Repatriation General Hospital - Concord
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St George Private Hospital - Kogarah
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Lismore Base Hospital, Lismore Cancer Care and Haematology Unit - Lismore
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Liverpool Hospital - Liverpool
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North Coast Cancer Institute - Port Macquarie
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Prince of Wales Hospital - Randwick
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Royal North Shore Hospital, Department of Medical Oncology - St Leonards
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Sydney Adventist Hospital - Sydney
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Australian Clinical Trials Pty Ltd - Wahroonga
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SAN Pathology - Wahroonga
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SAN Radiology - Wahroonga
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Calvary Mater Newcastle - Waratah
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Westmead Hospital - Westmead
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Heart Care Partners - Auchenflower
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Icon Cancer Care Wesley - Auchenflower
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River City Pharmacy - Auchenflower
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Icon Cancer Care Chermside - Chermside
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University of Queensland Centre for Clinical Research (UQCCR) - Herston
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Nuclear Medicine and Imaging Department - Herston
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Icon Cancer Care South Brisbane - South Brisbane
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Icon Cancer Foundation - South Brisbane
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Mater Private Cardiology - South Brisbane
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Adelaide Cancer Centre - Kurralta Park
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APHS Pharmacy - Kurralta Park
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Ashford Cancer Centre Research - Kurralta park
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Cancer Care SA Pty Ltd - Kurralta Park
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Bendigo Health, Bendigo Hospital - Bendigo
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Bendigo Health Medical Imaging - Bendigo
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Eastern Health - Box Hill
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MIA Box Hill Radiology - Box Hill
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Oncology Eastern Clinical Research Unit (ECRU) - Box Hill
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Pharmacy Department - Box Hill
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Cabrini Hospital Brighton - Brighton
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Monash Health Translation Precinct - Clayton
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Peter MacCallum Cancer Centre - East Melbourne
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Barwon Health, Geelong Hospital - Geelong
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Austin Hospital - Heidelberg
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Cabrini Hospital Malvern - Malvern,
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Cabrini Radiology - Malvern
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MDI Chemer - Malvern
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Peter MacCallum Cancer Centre - Melbourne
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Sunshine Hospital - St Albans
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2139 - Concord
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2217 - Kogarah
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2480 - Lismore
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2170 - Liverpool
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2444 - Port Macquarie
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2031 - Randwick
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2065 - St Leonards
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2076 - Sydney
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2076 - Wahroonga
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2298 - Waratah
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2145 - Westmead
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4066 - Auchenflower
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4032 - Chermside
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4006 - Herston
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4029 - Herston
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4101 - South Brisbane
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5037 - Kurralta Park
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5037 - Kurralta park
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3550 - Bendigo
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3552 - Bendigo
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3128 - Box Hill
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3186 - Brighton
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3168 - Clayton
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3002 - East Melbourne
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3220 - Geelong
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3084 - Heidelberg
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3144 - Malvern,
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3144 - Malvern
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3000 - Melbourne
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3021 - St Albans
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Recruitment outside Australia
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State/province [67]
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0
Heidelberg
Query!
Country [68]
0
0
Germany
Query!
State/province [68]
0
0
Homburg/Saar
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Country [69]
0
0
Germany
Query!
State/province [69]
0
0
Mannheim
Query!
Country [70]
0
0
Germany
Query!
State/province [70]
0
0
Muenster
Query!
Country [71]
0
0
Germany
Query!
State/province [71]
0
0
Tuebingen
Query!
Country [72]
0
0
Germany
Query!
State/province [72]
0
0
Ulm
Query!
Country [73]
0
0
Germany
Query!
State/province [73]
0
0
Weiden In Der Oberpfalz
Query!
Country [74]
0
0
Israel
Query!
State/province [74]
0
0
Beer Sheva
Query!
Country [75]
0
0
Israel
Query!
State/province [75]
0
0
Beer Yaakov
Query!
Country [76]
0
0
Israel
Query!
State/province [76]
0
0
Haifa
Query!
Country [77]
0
0
Israel
Query!
State/province [77]
0
0
Petach Tikva
Query!
Country [78]
0
0
Israel
Query!
State/province [78]
0
0
Ramat Gan
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Country [79]
0
0
Italy
Query!
State/province [79]
0
0
CR
Query!
Country [80]
0
0
Italy
Query!
State/province [80]
0
0
FC
Query!
Country [81]
0
0
Italy
Query!
State/province [81]
0
0
TO
Query!
Country [82]
0
0
Italy
Query!
State/province [82]
0
0
Arezzo
Query!
Country [83]
0
0
Italy
Query!
State/province [83]
0
0
Forli
Query!
Country [84]
0
0
Italy
Query!
State/province [84]
0
0
Rome
Query!
Country [85]
0
0
Japan
Query!
State/province [85]
0
0
Fukuoka
Query!
Country [86]
0
0
Japan
Query!
State/province [86]
0
0
Kanagawa-ken
Query!
Country [87]
0
0
Japan
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State/province [87]
0
0
Miyagi
Query!
Country [88]
0
0
Japan
Query!
State/province [88]
0
0
Nagasaki
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Country [89]
0
0
Japan
Query!
State/province [89]
0
0
Osaka
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Country [90]
0
0
Japan
Query!
State/province [90]
0
0
Tokushima
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Country [91]
0
0
Japan
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State/province [91]
0
0
Tokyo
Query!
Country [92]
0
0
Japan
Query!
State/province [92]
0
0
Yamaguchi
Query!
Country [93]
0
0
Japan
Query!
State/province [93]
0
0
Chiba
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Country [94]
0
0
Japan
Query!
State/province [94]
0
0
Kyoto
Query!
Country [95]
0
0
Japan
Query!
State/province [95]
0
0
Niigata
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Country [96]
0
0
Japan
Query!
State/province [96]
0
0
Yamagata
Query!
Country [97]
0
0
Korea, Republic of
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State/province [97]
0
0
Gyeonggi-do
Query!
Country [98]
0
0
Korea, Republic of
Query!
State/province [98]
0
0
Jeonnam
Query!
Country [99]
0
0
Korea, Republic of
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State/province [99]
0
0
Seoul
Query!
Country [100]
0
0
Lithuania
Query!
State/province [100]
0
0
Klaipeda
Query!
Country [101]
0
0
Lithuania
Query!
State/province [101]
0
0
Vilnius
Query!
Country [102]
0
0
Netherlands
Query!
State/province [102]
0
0
Amsterdam
Query!
Country [103]
0
0
Netherlands
Query!
State/province [103]
0
0
Eindhoven
Query!
Country [104]
0
0
Netherlands
Query!
State/province [104]
0
0
Groningen
Query!
Country [105]
0
0
Netherlands
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State/province [105]
0
0
Nijmegen
Query!
Country [106]
0
0
Poland
Query!
State/province [106]
0
0
Dolnoslaskie
Query!
Country [107]
0
0
Poland
Query!
State/province [107]
0
0
Lodzkie
Query!
Country [108]
0
0
Poland
Query!
State/province [108]
0
0
Pomorskie
Query!
Country [109]
0
0
Poland
Query!
State/province [109]
0
0
Slaskie
Query!
Country [110]
0
0
Poland
Query!
State/province [110]
0
0
Wielkopolskie
Query!
Country [111]
0
0
Russian Federation
Query!
State/province [111]
0
0
Moscow
Query!
Country [112]
0
0
Russian Federation
Query!
State/province [112]
0
0
St-Petersburg
Query!
Country [113]
0
0
Russian Federation
Query!
State/province [113]
0
0
St.-Petersburg
Query!
Country [114]
0
0
Singapore
Query!
State/province [114]
0
0
Singapore
Query!
Country [115]
0
0
Slovakia
Query!
State/province [115]
0
0
Banska Bystrica
Query!
Country [116]
0
0
Slovakia
Query!
State/province [116]
0
0
Bratislava
Query!
Country [117]
0
0
Slovakia
Query!
State/province [117]
0
0
Martin
Query!
Country [118]
0
0
Slovakia
Query!
State/province [118]
0
0
Nitra
Query!
Country [119]
0
0
Slovakia
Query!
State/province [119]
0
0
Presov
Query!
Country [120]
0
0
Spain
Query!
State/province [120]
0
0
Barcelona
Query!
Country [121]
0
0
Spain
Query!
State/province [121]
0
0
Islas Baleares
Query!
Country [122]
0
0
Spain
Query!
State/province [122]
0
0
Navarra
Query!
Country [123]
0
0
Spain
Query!
State/province [123]
0
0
A Coruna
Query!
Country [124]
0
0
Spain
Query!
State/province [124]
0
0
Madrid
Query!
Country [125]
0
0
Spain
Query!
State/province [125]
0
0
Sabadell(Barcelona)
Query!
Country [126]
0
0
Sweden
Query!
State/province [126]
0
0
Gothenburg
Query!
Country [127]
0
0
Sweden
Query!
State/province [127]
0
0
Malmo
Query!
Country [128]
0
0
Sweden
Query!
State/province [128]
0
0
Orebro
Query!
Country [129]
0
0
Sweden
Query!
State/province [129]
0
0
Stockholm
Query!
Country [130]
0
0
Sweden
Query!
State/province [130]
0
0
Umea
Query!
Country [131]
0
0
United Kingdom
Query!
State/province [131]
0
0
Middlesex
Query!
Country [132]
0
0
United Kingdom
Query!
State/province [132]
0
0
Oxfordshire
Query!
Country [133]
0
0
United Kingdom
Query!
State/province [133]
0
0
Surrey
Query!
Country [134]
0
0
United Kingdom
Query!
State/province [134]
0
0
Tyne and Wear
Query!
Country [135]
0
0
United Kingdom
Query!
State/province [135]
0
0
Wales
Query!
Country [136]
0
0
United Kingdom
Query!
State/province [136]
0
0
Wirral, Merseyside
Query!
Country [137]
0
0
United Kingdom
Query!
State/province [137]
0
0
Brighton, East Sussex
Query!
Country [138]
0
0
United Kingdom
Query!
State/province [138]
0
0
Bristol
Query!
Country [139]
0
0
United Kingdom
Query!
State/province [139]
0
0
Edinburgh
Query!
Country [140]
0
0
United Kingdom
Query!
State/province [140]
0
0
London
Query!
Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
Query!
Name
Pfizer
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Address
Query!
Country
Query!
Other collaborator category [1]
0
0
Commercial sector/Industry
Query!
Name [1]
0
0
Astellas Pharma Inc
Query!
Address [1]
0
0
Query!
Country [1]
0
0
Query!
Other collaborator category [2]
0
0
Commercial sector/Industry
Query!
Name [2]
0
0
Medivation LLC, a wholly owned subsidiary of Pfizer Inc.
Query!
Address [2]
0
0
Query!
Country [2]
0
0
Query!
Ethics approval
Ethics application status
Query!
Summary
Brief summary
The purpose of this study is to determine the benefit of enzalutamide versus placebo as
assessed by overall survival and progression-free survival in patients with progressive
metastatic prostate cancer who have failed androgen deprivation therapy but not yet received
chemotherapy.
Query!
Trial website
https://clinicaltrials.gov/ct2/show/NCT01212991
Query!
Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
0
0
Pfizer CT.gov Call Center
Query!
Address
0
0
Pfizer
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Country
0
0
Query!
Phone
0
0
Query!
Fax
0
0
Query!
Email
0
0
Query!
Contact person for public queries
Name
0
0
Query!
Address
0
0
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Country
0
0
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Phone
0
0
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Fax
0
0
Query!
Email
0
0
Query!
Contact person for scientific queries
Summary Results
For IPD and results data, please see
https://clinicaltrials.gov/ct2/show/NCT01212991
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