Safety and Efficacy Study of Enzalutamide Versus Bicalutamide in Men With Prostate Cancer

NCT ID: NCT01664923

Last Updated: 2019-01-30

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

396 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-08-31

Study Completion Date

2018-01-31

Brief Summary

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The purpose of this study is to determine the safety and efficacy of enzalutamide vs bicalutamide in asymptomatic or mildly symptomatic patients with prostate cancer who have disease progression despite primary androgen deprivation therapy.

Detailed Description

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This study is a multicenter phase 2, randomized, double-blind, efficacy and safety study of enzalutamide (160 mg/day) vs. bicalutamide (50 mg/day) in patients with recurrent prostate cancer who have serologic and/or radiographic disease progression despite primary androgen deprivation therapy.

Throughout the study, safety and tolerability will be assessed by the recording of adverse events, monitoring of vital signs, physical examinations, and safety laboratory evaluations.

Following study unblinding, study patients receiving enzalutamide or bicalutamide at the time of unblinding and qualifying patients randomized to bicalutamide who discontinued prior to unblinding will be offered the opportunity to receive open label enzalutamide treatment.

Conditions

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Prostate Cancer

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Enzalutamide

Enzalutamide 160 mg/day orally

Group Type EXPERIMENTAL

Enzalutamide

Intervention Type DRUG

160 mg, daily, by mouth.

Bicalutamide

50 mg/day orally

Group Type ACTIVE_COMPARATOR

Bicalutamide

Intervention Type DRUG

50 mg, daily, by mouth

Interventions

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Enzalutamide

160 mg, daily, by mouth.

Intervention Type DRUG

Bicalutamide

50 mg, daily, by mouth

Intervention Type DRUG

Other Intervention Names

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MDV3100 Xtandi Casodex

Eligibility Criteria

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Inclusion Criteria

* Males age 18 or older;
* Histologically or cytologically confirmed adenocarcinoma of the prostate;
* Ongoing androgen deprivation therapy;
* Serum testosterone level ≤ 50 ng/dL (1.73 nmol/L) at the Screening visit;
* Progressive disease at study entry defined by prostate-specific antigen (PSA) progression and/or radiographic progression that occurred while the patient was on primary androgen deprivation therapy;
* Asymptomatic or mildly symptomatic from prostate cancer;
* Eastern Cooperative Oncology Group (ECOG) performance status of 0-1;
* Estimated life expectancy of ≥ 12 months;
* Able to swallow the study drug and comply with study requirements.


* Received randomized double blind treatment in MDV3100-09 as follows:

* Randomized to enzalutamide and receiving enzalutamide at the time of study unblinding;
* Randomized to bicalutamide and receiving bicalutamide at the time of study unblinding;
* Randomized to bicalutamide and discontinued bicalutamide before study unblinding;
* Willing to maintain androgen deprivation therapy with a gonadotropin releasing hormone (GnRH) agonist/antagonist or has had a bilateral orchiectomy.

Exclusion Criteria

* Severe concurrent disease, infection, or co-morbidity;
* Known or suspected brain metastasis or active leptomeningeal disease;
* History of another invasive malignancy within the previous 5 years other than treated non-melanomatous skin cancer and American Joint Committee on Cancer (AJCC) Stage 0 or Stage 1 cancers that have a remote probability of recurrence;
* Absolute neutrophil count \< 1,500/µL, or platelet count \< 100,000/µL, or hemoglobin \< 9 g/dL at the Screening visit;
* Total bilirubin, alanine aminotransferase (ALT) or aspartate aminotransferase (AST) \> 2.5 times the upper limit of normal (ULN) at the Screening visit;
* Creatinine \> 2 mg/dL at the Screening visit;
* Albumin \< 3.0 g/dL at the Screening visit;
* History of seizure or any condition that may predispose to seizure;
* Clinically significant cardiovascular disease;
* Gastrointestinal disorder affecting absorption (e.g., gastrectomy, active peptic ulcer disease within last 3 months);
* Major surgery within 4 weeks of enrollment;
* Use of opiate analgesics for pain from prostate cancer within 4 weeks of enrollment;
* Radiation therapy for treatment of the primary tumor within 3 weeks of enrollment;
* Prior radiation or radionuclide therapy for treatment of distant metastases;
* Prior ketoconazole, abiraterone, or cytotoxic chemotherapy for prostate cancer;
* Treatment with hormonal therapy or biologic therapy for prostate cancer within 4 weeks of enrollment;
* Use of antiandrogens within 4 weeks prior to enrollment;
* Prior disease progression, as assessed by the Investigator, while receiving bicalutamide;
* Participation in a previous clinical trial of enzalutamide or an investigational agent that inhibits the androgen receptor or androgen synthesis (patients who received placebo are acceptable);
* Use of an investigational agent within 4 weeks of enrollment;
* Use of herbal products that may have hormonal anti-prostate cancer activity and/or are known to decrease PSA levels (e.g., saw palmetto) or systemic corticosteroids for prostate cancer within 4 weeks of enrollment;
* Any condition or reason that, in the opinion of the Investigator, interferes with the ability of the patient to participate in the trial, which places the patient at undue risk, or complicates the interpretation of safety data.

Open-Label Treatment Period:


* Is currently or has taken commercially available enzalutamide (Xtandi) prior to participation in this open-label extension;
* Discontinued enzalutamide during the double-blind portion of the study prior to unblinding;
* Has any clinically significant cardiovascular, dermatologic, endocrine, gastrointestinal, hematologic, hepatic, infectious, metabolic, neurologic, psychiatric, psychologic, pulmonary, or renal disorder or any other condition, including excessive alcohol or drug abuse, or secondary malignancy, that may interfere with study participation in the opinion of the investigator or medical monitor;
* Has a current or previously treated brain metastasis or leptomeningeal disease;
* Has a history of seizure or any condition that may predispose to seizure (eg, prior cortical stroke or significant brain trauma);
* Has a history of loss of consciousness or transient ischemic attack within 12 months of open label day 1;
* Has taken cytotoxic chemotherapy or investigational therapy within 4 weeks before enrollment (open label day 1).
Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Astellas Pharma Inc

INDUSTRY

Sponsor Role collaborator

Medivation LLC, a wholly owned subsidiary of Pfizer Inc.

INDUSTRY

Sponsor Role collaborator

Pfizer

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Pfizer Pfizer CT.gov Call Center

Role: STUDY_DIRECTOR

Pfizer

Locations

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University of Alabama at Birmingham

Birmingham, Alabama, United States

Site Status

University of Alabama at Birmingham,IDS Pharmacy

Birmingham, Alabama, United States

Site Status

University of Alabama at Birmingham

Birmingham, Alabama, United States

Site Status

Desert Springs Cancer Care

Scottsdale, Arizona, United States

Site Status

Arizona Oncology Associates, PC - HOPE

Tucson, Arizona, United States

Site Status

Arizona Oncology Associates, PC - HOPE

Tucson, Arizona, United States

Site Status

Urological Associates of Southern Arizona, PC

Tucson, Arizona, United States

Site Status

Urological Associates of Southern Arizona, PC

Tucson, Arizona, United States

Site Status

Southern California Permanente Medical Group

Anaheim, California, United States

Site Status

Kaiser Permanente Medical Center Lab Drawing Station

Antioch, California, United States

Site Status

Kaiser Permanente Medical Center Lab Drawing Station

Antioch, California, United States

Site Status

Kaiser Permanente Medical Center Lab Drawing Station

Fairfield, California, United States

Site Status

Kaiser Permanente Medical Center Lab Drawing Station

Gilroy, California, United States

Site Status

Southern California Permanente Medical Group

Los Angeles, California, United States

Site Status

Tower Urology

Los Angeles, California, United States

Site Status

UCLA Clark Urology Clinic

Los Angeles, California, United States

Site Status

UCLA Department of Pharmaceutical Services

Los Angeles, California, United States

Site Status

Kaiser Permanente Medical Center Lab Drawing Station

Martinez, California, United States

Site Status

Kaiser Permanente Medical Center Lab Drawing Station

Milpitas, California, United States

Site Status

Kaiser Permanente Medical Center Lab Drawing Station

Modesto, California, United States

Site Status

Kaiser Permanente Medical Center Lab Drawing Station

Moutain View, California, United States

Site Status

Kaiser Permanente Medical Center Lab Drawing Station

Napa, California, United States

Site Status

Kaiser Permanente Medical Center

Oakland, California, United States

Site Status

Kaiser Permanente Medical Center Lab Drawing Station

Pleasanton, California, United States

Site Status

Kaiser Permanente Medical Center Lab Drawing Station

Redwood City, California, United States

Site Status

Kaiser Permanente Medical Center

Roseville, California, United States

Site Status

UC Davis Comprehensive Cancer Center

Sacramento, California, United States

Site Status

UC Davis Medical Center

Sacramento, California, United States

Site Status

Kaiser Permanente Medical Center

Sacramento, California, United States

Site Status

San Bernardino Urological Associates Medical Group

San Bernardino, California, United States

Site Status

Southern California Permanente Medical Group

San Diego, California, United States

Site Status

Kaiser Permanente Medical Center

San Francisco, California, United States

Site Status

Kaiser Permanente Medical Center

San Jose, California, United States

Site Status

Kaiser Permanente Medical Center

San Leandro, California, United States

Site Status

Southern California Permanente Medical Group

San Marcos, California, United States

Site Status

Kaiser Permanente Medical Center

Santa Clara, California, United States

Site Status

Skyline Urology

Sherman Oaks, California, United States

Site Status

Kaiser Permanente Medical Center

South San Francisco, California, United States

Site Status

Standford Health Care

Stanford, California, United States

Site Status

Skyline Urology

Torrance, California, United States

Site Status

Kaiser Permanente Medical Center

Vallejo, California, United States

Site Status

Kaiser Permanente Medical Center

Walnut Creek, California, United States

Site Status

Anschutz Cancer Center Pavilion Pharmacy

Aurora, Colorado, United States

Site Status

Anschutz Inpatient Pavilion

Aurora, Colorado, United States

Site Status

University of Colorado Cancer Center, Anschutz Cancer Pavilion

Aurora, Colorado, United States

Site Status

The Urology Center of Colorado

Denver, Colorado, United States

Site Status

George Washington University - Medical Faculty Associates

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

Site Status

Advanced Urology institute

Daytona Beach, Florida, United States

Site Status

East Coast Institute for Research, LLC

Jacksonville, Florida, United States

Site Status

East Coast Institute for Research, LLC

Jacksonville, Florida, United States

Site Status

Specialists In Urology

Naples, Florida, United States

Site Status

First Urology, PSC

Jeffersonville, Indiana, United States

Site Status

Metairie Oncologist, LLC

Metairie, Louisiana, United States

Site Status

Ochsner Clinic Foundation

New Orleans, Louisiana, United States

Site Status

Regional Urology, LLC

Shreveport, Louisiana, United States

Site Status

Chesapeake Urology Research Associates

Towson, Maryland, United States

Site Status

Michigan Institute of Urology

Troy, Michigan, United States

Site Status

Minnesota Oncology Hematology, P.A.

Edina, Minnesota, United States

Site Status

Minnesota Oncology Hematology, P.A.

Woodbury, Minnesota, United States

Site Status

Barnes-Jewish West County Hospital

Creve Coeur, Missouri, United States

Site Status

Barnes-Jewish Hospital

St Louis, Missouri, United States

Site Status

Washington University Infusion Center Pharmacy

St Louis, Missouri, United States

Site Status

Washington University, School of Medicine, 7th Floor, Center for Advanced Medicine

St Louis, Missouri, United States

Site Status

Siteman Cancer Center - South County

St Louis, Missouri, United States

Site Status

GU Research network,LLC / Urology Cancer Center

Omaha, Nebraska, United States

Site Status

Hackensack University Medical Center

Hackensack, New Jersey, United States

Site Status

John Theurer Cancer Center at Hackensack University Medical Center

Hackensack, New Jersey, United States

Site Status

AccuMed Research Associates

Garden City, New York, United States

Site Status

Premier Medical Group of the Hudson Valley PC

Poughkeepsie, New York, United States

Site Status

Associated Medical Professionals of NY, PLLC

Syracuse, New York, United States

Site Status

Carolinas Medical Center-Steelcreek

Charlotte, North Carolina, United States

Site Status

Carolina Clinical Trials, LLC

Concord, North Carolina, United States

Site Status

Carolina Urology Partners, PLLC

Concord, North Carolina, United States

Site Status

Duke University Medical Center

Durham, North Carolina, United States

Site Status

Investigational Chemotherapy Services

Durham, North Carolina, United States

Site Status

Alliance Urology Specialists, PA

Greensboro, North Carolina, United States

Site Status

Rowan Regional Medical Center

Salisbury, North Carolina, United States

Site Status

Wake Forest Baptist Health Urology

Winston-Salem, North Carolina, United States

Site Status

Wake Forest Baptist Health

Winston-Salem, North Carolina, United States

Site Status

TriState Urologic Services PSC Inc., dba The Urology Group

Cincinnati, Ohio, United States

Site Status

Cleveland Clinic Taussig Cancer Institute

Cleveland, Ohio, United States

Site Status

Peace Harbor Hospital

Florence, Oregon, United States

Site Status

Salem Hospital

Salem, Oregon, United States

Site Status

Oregon Urology Institute

Springfield, Oregon, United States

Site Status

Sacred Heart Nuclear Medicine

Springfield, Oregon, United States

Site Status

Lancaster Urology

Lancaster, Pennsylvania, United States

Site Status

Jefferson Medical Oncology

Philadelphia, Pennsylvania, United States

Site Status

Jefferson Urology Associates

Philadelphia, Pennsylvania, United States

Site Status

Thomas Jefferson University Hospital

Philadelphia, Pennsylvania, United States

Site Status

UPMC Cancer Center Hillman Cancer Center

Pittsburgh, Pennsylvania, United States

Site Status

Mount Nittany Physician Group

State College, Pennsylvania, United States

Site Status

Mount Nittany Health

State College, Pennsylvania, United States

Site Status

Charleston Hematology Oncology Associates, PA

Charleston, South Carolina, United States

Site Status

Carolina Urologic Research Center

Myrtle Beach, South Carolina, United States

Site Status

Urology Associates P.C.

Nashville, Tennessee, United States

Site Status

Vanderbilt University Medical Center

Nashville, Tennessee, United States

Site Status

Urology Clinics of North Texas

Dallas, Texas, United States

Site Status

Texas Oncology - Baylor Charles A. Sammons Cancer Center

Dallas, Texas, United States

Site Status

Texas Oncology-Memorial City

Houston, Texas, United States

Site Status

Urology San Antonio Research

San Antonio, Texas, United States

Site Status

University of Utah/Huntsman Cancer Hospital

Salt Lake City, Utah, United States

Site Status

University of Utah/Huntsman Cancer Institute

Salt Lake City, Utah, United States

Site Status

Virginia Oncology Associates

Hampton, Virginia, United States

Site Status

Virginia Oncology Associates

Norfolk, Virginia, United States

Site Status

Urology of Virginia, PLLC.

Virginia Beach, Virginia, United States

Site Status

Virginia Mason Medical Center

Seattle, Washington, United States

Site Status

Seattle Cancer Care Alliance

Seattle, Washington, United States

Site Status

University of Washington Medical Center

Seattle, Washington, United States

Site Status

University of Wisconsin Clinical Sciences Center

Madison, Wisconsin, United States

Site Status

Countries

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United States

References

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Penson DF, Armstrong AJ, Concepcion RS, Agarwal N, Olsson CA, Karsh LI, Dunshee CJ, Duggan W, Shen Q, Sugg J, Haas GP, Higano CS. Enzalutamide versus bicalutamide in patients with nonmetastatic castration-resistant prostate cancer: a prespecified subgroup analysis of the STRIVE trial. Prostate Cancer Prostatic Dis. 2022 Feb;25(2):363-365. doi: 10.1038/s41391-021-00465-7. Epub 2021 Oct 7.

Reference Type DERIVED
PMID: 34621011 (View on PubMed)

Schultz NM, Shore ND, Chowdhury S, Klotz LH, Concepcion RS, Penson DF, Karsh LI, Yang H, Brown BA, Barlev A, Flanders SC. Number-needed-to-treat analysis of clinical progression in patients with metastatic castration-resistant prostate cancer in the STRIVE and TERRAIN trials. BMC Urol. 2018 Sep 6;18(1):77. doi: 10.1186/s12894-018-0387-7.

Reference Type DERIVED
PMID: 30189902 (View on PubMed)

Penson DF, Armstrong AJ, Concepcion R, Agarwal N, Olsson C, Karsh L, Dunshee C, Wang F, Wu K, Krivoshik A, Phung D, Higano CS. Enzalutamide Versus Bicalutamide in Castration-Resistant Prostate Cancer: The STRIVE Trial. J Clin Oncol. 2016 Jun 20;34(18):2098-106. doi: 10.1200/JCO.2015.64.9285. Epub 2016 Jan 25.

Reference Type DERIVED
PMID: 26811535 (View on PubMed)

Other Identifiers

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C3431014

Identifier Type: OTHER

Identifier Source: secondary_id

MDV3100-09

Identifier Type: -

Identifier Source: org_study_id

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