Prostate Cancer Study In Men Who Have Failed First-Line Androgen Deprivation Therapy

NCT ID: NCT00470834

Last Updated: 2017-02-27

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

127 participants

Study Classification

INTERVENTIONAL

Study Start Date

2007-05-31

Study Completion Date

2013-02-28

Brief Summary

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Dutasteride inhibits the conversion of testosterone to dihydrotestosterone (DHT) the male hormone that leads to benign prostate growth. By blocking the conversion of testosterone to DHT, dutasteride could allow bicalutamide to be a more effective anti-androgen thus prolonging bicalutamide's efficacy.

Detailed Description

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Conditions

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Neoplasms, Prostate

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Arm 1

50 mg bicalutamide and 3.5 mg Dutasteride (IP)

Group Type EXPERIMENTAL

dutasteride

Intervention Type DRUG

0.5mg dutasteride (Investigation Product)

bicalutamide

Intervention Type DRUG

50 mg Casodex or generic equivalent

Arm 2

50 mg bicalutamide and placebo

Group Type PLACEBO_COMPARATOR

placebo

Intervention Type DRUG

making placebo

bicalutamide

Intervention Type DRUG

50 mg Casodex or generic equivalent

Interventions

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dutasteride

0.5mg dutasteride (Investigation Product)

Intervention Type DRUG

placebo

making placebo

Intervention Type DRUG

bicalutamide

50 mg Casodex or generic equivalent

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Men ≥40 and ≤90 years of age
* Must have asymptomatic prostate cancer that has progressed during androgen deprivation therapy (rising PSA). PSA progression must have occurred after first-line treatment with GnRH analogues ( e.g. leuprolide, goserelin) or orchiectomy. PSA progression is defined by three rises in PSA each measured at least 4 weeks apart within the previous year.
* Serum PSA ≥2 and ≤20ng/ml from central laboratory. One PSA retest from central laboratory is allowed if the value is \<2 or \>20ng/ml; or if the PSA value is not consistent with the previous rising PSA values that determined progression while on a GnRH analogue.
* Serum Testosterone \<50ng/ml from central laboratory.
* Non-metastatic prostate cancer as confirmed on prior bone scan performed within 8 weeks of screening.
* Expected survival ≥ 2 years
* ECOG Performance status 0, 1, or 2

Exclusion Criteria

* Additional hormonal therapy (excluding the current use of a GnRH analogue) within the past 6 months of:
* Estrogens (e.g. megestrol, medroxyprogesterone, cyproterone, DES)
* Drugs with antiandrogenic properties (e.g., spironolactone if \>50mg/day, flutamide, bicalutamide\*, ketoconazole\*\*, progestational agents)

\*The use of an antiandrogen during GnRH analogue induction for \<6 weeks is acceptable, but none within the 3 months prior to study entry.

\*\*The use of topical ketoconazole is permitted prior to and during the study. NOTE: Use of dietary and herbal supplements (e.g., selenium, Vitamin E, saw palmetto), excluding daily vitamins, during the study is discouraged, but not prohibited. All dietary and herbal supplement usage will be recorded in the eCRF.
* Treatment with oral glucocorticoids during the 3 months prior to randomization or expectation of their use during the study.
* Prior chemotherapy for prostate cancer. (prior prostatectomy or radiotherapy to the prostate are allowed)
* Prostate surgery including TUNA, TURP, TUIP, laser treatment, thermotherapy, balloon dilatation, prosthesis, and cryosurgical ablation within 2 months prior to enrollment.
* Current and/or previous use of the following medications:
* Finasteride (Proscar, Propecia), or Dutasteride (GI198745, AVODART) exposure within 6 months prior to study entry
* Anabolic steroids (within 6 months prior to study entry)
* Participation in any investigational or marketed drug trial within the 30 days prior to the first dose of study drug or anytime during the study period.
* Any unstable serious co-existing medical condition(s) including but not limited to myocardial infarction, coronary bypass surgery, unstable angina, cardiac arrhythmias, clinically evident congestive heart failure, or cerebrovascular accident within 6 months prior to Screening visit; uncontrolled diabetes; or peptic ulcer disease which is uncontrolled by medical management.
* Abnormal liver function test greater than 1.5 times the upper limit of normal for alanine aminotransferase \[ALT\], aspartate aminotransferase \[AST\], alkaline phosphatase \[ALP\] or bilirubin.
* Serum creatinine \>2.0 times the upper limit of normal.
* History of another malignancy within five years that could affect the treatment of prostate cancer or survival of the subject.
* History or current evidence of drug or alcohol abuse within the last 12 months.
* History of any illness (including psychiatric) that, in the opinion of the investigator, might confound the results of the study or pose additional risk to the subject.
* Known hypersensitivity to any 5 alpha-reductase inhibitor or to any drug chemically related to dutasteride.
Minimum Eligible Age

40 Years

Maximum Eligible Age

90 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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GlaxoSmithKline

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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GSK Clinical Trials

Role: STUDY_DIRECTOR

GlaxoSmithKline

Locations

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GSK Investigational Site

Homewood, Alabama, United States

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Huntsville, Alabama, United States

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Little Rock, Arkansas, United States

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Anaheim, California, United States

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Fresno, California, United States

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San Bernardino, California, United States

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San Diego, California, United States

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Denver, Colorado, United States

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Washington D.C., District of Columbia, United States

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Aventura, Florida, United States

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Daytona Beach, Florida, United States

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Orlando, Florida, United States

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Galesburg, Illinois, United States

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Evansville, Indiana, United States

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Fort Wayne, Indiana, United States

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Jeffersonville, Indiana, United States

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Overland Park, Kansas, United States

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New Orleans, Louisiana, United States

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Shreveport, Louisiana, United States

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Annapolis, Maryland, United States

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Watertown, Massachusetts, United States

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Chaska, Minnesota, United States

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Minneapolis, Minnesota, United States

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St Louis, Missouri, United States

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Omaha, Nebraska, United States

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Las Vegas, Nevada, United States

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Albany, New York, United States

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Garden City, New York, United States

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Manhasset, New York, United States

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New York, New York, United States

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Syracuse, New York, United States

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Concord, North Carolina, United States

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Columbus, Ohio, United States

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Bala-Cynwyd, Pennsylvania, United States

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Lancaster, Pennsylvania, United States

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Philadelphia, Pennsylvania, United States

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Myrtle Beach, South Carolina, United States

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Memphis, Tennessee, United States

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Houston, Texas, United States

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San Antonio, Texas, United States

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Norfork, Virginia, United States

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Richmond, Virginia, United States

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Virginia Beach, Virginia, United States

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Williamsburg, Virginia, United States

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Seattle, Washington, United States

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Seattle, Washington, United States

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Milwaukee, Wisconsin, United States

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Calgary, Alberta, Canada

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Surrey, British Columbia, Canada

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Victoria, British Columbia, Canada

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Barrie, Ontario, Canada

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Burlington, Ontario, Canada

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Greater Sudbury, Ontario, Canada

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North Bay, Ontario, Canada

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Oakville, Ontario, Canada

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Scarborough Village, Ontario, Canada

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Toronto, Ontario, Canada

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Toronto, Ontario, Canada

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Greenfield Park, Quebec, Canada

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Laval, Quebec, Canada

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Pointe-Claire, Quebec, Canada

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Québec, Quebec, Canada

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Countries

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United States Canada

Study Documents

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Document Type: Clinical Study Report

For additional information about this study please refer to the GSK Clinical Study Register

View Document

Document Type: Study Protocol

For additional information about this study please refer to the GSK Clinical Study Register

View Document

Document Type: Informed Consent Form

For additional information about this study please refer to the GSK Clinical Study Register

View Document

Document Type: Annotated Case Report Form

For additional information about this study please refer to the GSK Clinical Study Register

View Document

Document Type: Dataset Specification

For additional information about this study please refer to the GSK Clinical Study Register

View Document

Document Type: Individual Participant Data Set

For additional information about this study please refer to the GSK Clinical Study Register

View Document

Document Type: Statistical Analysis Plan

For additional information about this study please refer to the GSK Clinical Study Register

View Document

Related Links

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https://www.clinicalstudydatarequest.com

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Other Identifiers

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AVO108943

Identifier Type: -

Identifier Source: org_study_id

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