Radiation Therapy With or Without Antiandrogen Therapy in Treating Patients With Stage I or Stage II Prostate Cancer

May 15, 2018 updated by: Radiation Therapy Oncology Group

A PHASE III TRIAL OF THE STUDY OF ENDOCRINE THERAPY USED AS A CYTOREDUCTIVE AND CYTOSTATIC AGENT PRIOR TO RADIATION THERAPY IN GOOD PROGNOSIS LOCALLY CONFINED ADENOCARCINOMA OF THE PROSTATE

RATIONALE: Radiation therapy (RT) uses high-energy x-rays to damage tumor cells. Androgens can stimulate the growth of prostate cancer cells. Hormone therapy using flutamide, goserelin, and leuprolide may fight prostate cancer by reducing the production of androgens. It is not yet known which regimen of antiandrogen therapy is most effective for prostate cancer.

PURPOSE: Randomized phase III trial to study the effectiveness of radiation therapy with or without antiandrogen therapy in treating patients who have stage I or stage II prostate cancer.

Study Overview

Detailed Description

OBJECTIVES: Primary: To evaluate whether a combination of Zoladex and flutamide used as cytoreductive agents prior to and during definitive radiation therapy improves overall survival over radiation therapy alone in locally confined carcinomas of the prostate; Secondary: To compare the rates of disease-specific survival, clinical relapse (local progression and/or distant failure), freedom from prostate-specific antigen (PSA) failure, freedom from second clinical relapse, freedom from second PSA relapse, and disease-free survival; To compare the prostate re-biopsy at two years; To measure the effect on sexual function.

OUTLINE: This is a randomized, multicenter study. Patients were stratified by PSA level (less than 4 vs 4-20), tumor differentiation (well vs moderate vs poor), nodal status (N0 [nodes evaluated by surgical sampling] vs NX [nodes evaluated negative by imaging methods only]), and participating center. Patients are randomized to one of two treatment arms. Arm I: Patients receive oral flutamide 3 times a day and goserelin subcutaneously once every 4 weeks, or once as a time release injection (intramuscular leuprolide may be substituted for goserelin), beginning 2 months prior to radiotherapy and continuing until completion of radiotherapy. Patients undergo radiotherapy daily 4-5 days per week for almost 8 weeks. Arm II: Patients undergo radiotherapy only, as in arm I. Patients are followed every 3 months for the remainder of the first year, every 4 months for the second year, every 6 months for the third through fifth years, and then annually thereafter.

PROJECTED ACCRUAL: A total of 1980 patients within 5 years.

Study Type

Interventional

Enrollment (Actual)

2028

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Alberta
      • Calgary, Alberta, Canada, T2N 4N2
        • Tom Baker Cancer Center - Calgary
      • Edmonton, Alberta, Canada, T6G 1Z2
        • Cross Cancer Institute
    • British Columbia
      • Vancouver, British Columbia, Canada, V5Z 4E6
        • British Columbia Cancer Agency
    • New Brunswick
      • Saint John, New Brunswick, Canada, E2L 4L2
        • Saint John Regional Hospital
    • Newfoundland and Labrador
      • St. Johns, Newfoundland and Labrador, Canada, A1B 3V6
        • Newfoundland Cancer Treatment and Research Foundation
    • Nova Scotia
      • Halifax, Nova Scotia, Canada, B3H 1V7
        • Nova Scotia Cancer Centre
    • Ontario
      • Hamilton, Ontario, Canada, L8V 5C2
        • Cancer Care Ontario-Hamilton Regional Cancer Centre
      • Kingston, Ontario, Canada, K7L 5P9
        • Kingston Regional Cancer Centre
      • London, Ontario, Canada, N6A 4L6
        • Cancer Care Ontario-London Regional Cancer Centre
      • Ottawa, Ontario, Canada, K1H 1C4
        • Ottawa Regional Cancer Centre - General Campus
      • Sudbury, Ontario, Canada, P3E 5J1
        • Northeastern Ontario Regional Cancer Centre, Sudbury
      • Thunder Bay, Ontario, Canada, P7A 7T1
        • Northwestern Ontario Regional Cancer Centre, Thunder Bay
      • Toronto, Ontario, Canada, M4N 3M5
        • Toronto Sunnybrook Regional Cancer Centre
      • Toronto, Ontario, Canada, M5G 2M9
        • Princess Margaret Hospital
    • Quebec
      • Fleurimont, Quebec, Canada, J1H 5N4
        • CHUS-Hopital Fleurimont
      • Montreal, Quebec, Canada, H2W 1S6
        • McGill University
    • Saskatchewan
      • Saskatoon, Saskatchewan, Canada, S7N 4H4
        • Saskatoon Cancer Centre
    • Alabama
      • Birmingham, Alabama, United States, 35294-3300
        • University of Alabama at Birmingham Comprehensive Cancer Center
      • Huntsville, Alabama, United States, 35801
        • Comprehensive Cancer Institute of Huntsville
      • Huntsville, Alabama, United States, 35801-4470
        • Huntsville Hospital System
      • Mobile, Alabama, United States, 36688
        • MBCCOP - Gulf Coast
      • Montgomery, Alabama, United States, 36106-2801
        • Alabama Oncology, LLC
      • Tuscaloosa, Alabama, United States, 35401
        • Radiation Oncology Associates of West Alabama
    • Alaska
      • Anchorage, Alaska, United States, 99508
        • Providence Alaska Medical Center
    • Arizona
      • Tucson, Arizona, United States, 85724
        • Arizona Cancer Center
    • California
      • Concord, California, United States, 94524-4110
        • Mount Diablo Medical Center
      • Duarte, California, United States, 91010-3000
        • Cancer Center and Beckman Research Institute, City of Hope
      • Fresno, California, United States, 93720
        • California Cancer Center
      • Fresno, California, United States, 93720
        • Saint Agnes Cancer Center
      • Glendale, California, United States, 91204
        • Glendale Memorial Hospital and Health Center
      • Greenbrae, California, United States, 94904
        • Sutter Health Western Division Cancer Research Group
      • La Jolla, California, United States, 92093-0658
        • University of California San Diego Cancer Center
      • Loma Linda, California, United States, 92354
        • Loma Linda University Medical Center
      • Long Beach, California, United States, 90822
        • Veterans Affairs Medical Center - Long Beach
      • Los Angeles, California, United States, 90095-1781
        • Jonsson Comprehensive Cancer Center, UCLA
      • Los Angeles, California, United States, 90033-0804
        • USC/Norris Comprehensive Cancer Center and Hospital
      • Oakland, California, United States, 94609-3305
        • CCOP - Bay Area Tumor Institute
      • Pomona, California, United States, 91767
        • Cancer Care Center
      • Sacramento, California, United States, 95816
        • Radiation Oncology Center - Sacramento
      • San Diego, California, United States, 92101-1492
        • Radiation Medical Group, Inc.
      • San Francisco, California, United States, 94143-0128
        • UCSF Cancer Center and Cancer Research Institute
      • San Jose, California, United States, 95128
        • O'Connor Hospital
      • Santa Rosa, California, United States, 95403
        • CCOP - Santa Rosa Memorial Hospital
    • Colorado
      • Colorado Springs, Colorado, United States, 80909
        • Memorial Hospital Cancer Center
      • Denver, Colorado, United States, 80010
        • University of Colorado Cancer Center
    • Delaware
      • Wilmington, Delaware, United States, 19899
        • CCOP - Christiana Care Health Services
    • District of Columbia
      • Washington, District of Columbia, United States, 20307-5000
        • Walter Reed Army Medical Center
    • Florida
      • Clearwater, Florida, United States, 33757-0210
        • Lykes Center for Radiation Therapy
      • Daytona Beach, Florida, United States, 32114
        • Halifax Medical Center
      • Fort Myers, Florida, United States, 33901
        • Radiation Therapy Associates - Fort Myers
      • Gainesville, Florida, United States, 32610-0296
        • University of Florida Health Science Center
      • Melbourne, Florida, United States, 32901
        • Health First Holmes Regional Medical Center
      • Miami, Florida, United States, 33136
        • Sylvester Cancer Center, University of Miami
      • Miami, Florida, United States, 33176-2197
        • Baptist Hospital of Miami
      • Miami, Florida, United States, 33125
        • dVeterans Affairs Medical Center - Miami
      • Miami Beach, Florida, United States, 33140
        • CCOP - Mount Sinai Medical Center
      • Orange Park, Florida, United States, 32073
        • Florida Radiation Oncology Group
      • Orlando, Florida, United States, 32806
        • MD Anderson Cancer Center Orlando
      • Panama City, Florida, United States, 32405-4587
        • Gulf Coast Cancer Treatment Center
      • Panama City, Florida, United States, 32401
        • Bay Medical Center
      • Sarasota, Florida, United States, 34233
        • Sarasota Radiation and Medical Oncology Center
      • Tallahassee, Florida, United States, 32308
        • Tallahassee Memorial HealthCare
      • Tampa, Florida, United States, 33612-9497
        • H. Lee Moffitt Cancer Center and Research Institute
    • Georgia
      • Atlanta, Georgia, United States, 30322
        • Emory University Hospital - Atlanta
      • Atlanta, Georgia, United States, 30342-1701
        • CCOP - Atlanta Regional
      • Columbus, Georgia, United States, 31902
        • Medical Center/John B. Amos Community Cancer Center
      • Rome, Georgia, United States, 30161
        • InterCommunity Cancer Center at Rome
    • Illinois
      • Arlington Heights, Illinois, United States, 60005
        • Northwest Community Hospital
      • Chicago, Illinois, United States, 60637-1470
        • University of Chicago Cancer Research Center
      • Chicago, Illinois, United States, 60611
        • Northwestern Memorial Hospital
      • Decatur, Illinois, United States, 62526
        • CCOP - Central Illinois
      • Elgin, Illinois, United States, 60123
        • Provena St. Joseph Hospital- Regional Cancer Care Center
      • Harvey, Illinois, United States, 60426
        • Ingalls Memorial Hospital
      • Maywood, Illinois, United States, 60153
        • Loyola University Medical Center
      • Park Ridge, Illinois, United States, 60068
        • Lutheran General Cancer Care Center
      • Peoria, Illinois, United States, 61636
        • Methodist Medical Center of Illinois
    • Indiana
      • Anderson, Indiana, United States, 46016
        • St. John's Medical Center
      • Indianapolis, Indiana, United States, 46202
        • Veterans Affairs Medical Center - Indianapolis (Roudebush)
      • Indianapolis, Indiana, United States, 46206-1367
        • Clarion Health Partners Inc.
      • Indianapolis, Indiana, United States, 46219
        • Community Hospitals of Indianapolis - Regional Cancer Center
      • Muncie, Indiana, United States, 47303-3499
        • Ball Memorial Hospital
    • Iowa
      • Dubuque, Iowa, United States, 52001
        • Wendt Regional Cancer Center of Finley Hospital
      • Iowa City, Iowa, United States, 52242-1009
        • Holden Comprehensive Cancer Center at the University of Iowa
    • Kentucky
      • Lexington, Kentucky, United States, 40511-1093
        • Veterans Affairs Medical Center - Lexington
      • Lexington, Kentucky, United States, 40536-0084
        • Albert B. Chandler Medical Center, University of Kentucky
      • Louisville, Kentucky, United States, 40202
        • James Graham Brown Cancer Center
      • Louisville, Kentucky, United States, 40215
        • Louisville Radiation Oncology
      • Madisonville, Kentucky, United States, 42431
        • Merle M. Mahr Cancer Center
    • Louisiana
      • Baton Rouge, Louisiana, United States, 70809
        • Mary Bird Perkins Cancer Center
      • Lafayette, Louisiana, United States, 70501
        • Romagosa Radiation Oncology Center
      • New Orleans, Louisiana, United States, 70112
        • Tulane University School of Medicine
      • New Orleans, Louisiana, United States, 70121
        • CCOP - Ochsner
      • New Orleans, Louisiana, United States, 70112
        • MBCCOP - LSU Health Sciences Center
    • Maine
      • Portland, Maine, United States, 04102
        • Maine Medical Center
    • Maryland
      • Annapolis, Maryland, United States, 21401
        • Anne Arundel Oncology Center
      • Baltimore, Maryland, United States, 21225
        • Sinai Hospital of Baltimore
      • Baltimore, Maryland, United States, 21204
        • Greater Baltimore Medical Center and Cancer Center
      • Baltimore, Maryland, United States, 21225
        • Harbor Hospital Center
      • Baltimore, Maryland, United States, 21237
        • Radiation Oncology Affiliates of Maryland, P.A.
      • Baltimore, Maryland, United States, 21231-2410
        • Johns Hopkins Oncology Center
      • Salisbury, Maryland, United States, 21801
        • Peninsula Regional Medical Center
    • Massachusetts
      • Hyannis, Massachusetts, United States, 02601
        • Cape Cod Hospital
      • Jamaica Plain, Massachusetts, United States, 02130
        • Veterans Affairs Medical Center - Boston (Jamaica Plain)
    • Michigan
      • Ann Arbor, Michigan, United States, 48109-0752
        • University of Michigan Comprehensive Cancer Center
      • Ann Arbor, Michigan, United States, 48106
        • CCOP - Ann Arbor Regional
      • Detroit, Michigan, United States, 48202
        • Henry Ford Hospital
      • Detroit, Michigan, United States, 48201-1379
        • Barbara Ann Karmanos Cancer Institute
      • Flint, Michigan, United States, 48503
        • Hurley Medical Center
      • Flint, Michigan, United States, 48432
        • McLaren Regional Cancer Center
      • Kalamazoo, Michigan, United States, 49007-3731
        • CCOP - Kalamazoo
      • Marquette, Michigan, United States, 49855
        • Marquette General Hospital
      • Midland, Michigan, United States, 48670
        • MidMichigan Medical Center - Midland
      • Royal Oak, Michigan, United States, 48073
        • William Beaumont Hospital
      • Saginaw, Michigan, United States, 48601
        • St. Mary's Medical Center
    • Minnesota
      • Rochester, Minnesota, United States, 55905
        • Mayo Clinic Cancer Center
      • Saint Louis Park, Minnesota, United States, 55416
        • CCOP - Metro-Minnesota
    • Mississippi
      • Tupelo, Mississippi, United States, 38801
        • North Mississippi Medical Center/Cancer Center
    • Missouri
      • Columbia, Missouri, United States, 65203
        • Ellis Fischel Cancer Center - Columbia
      • Kansas City, Missouri, United States, 64131
        • CCOP - Kansas City
      • Saint Louis, Missouri, United States, 63110-0250
        • St. Louis University Health Sciences Center
      • Saint Louis, Missouri, United States, 63110
        • Mallinckrodt Institute of Radiology
      • Springfield, Missouri, United States, 65807
        • CCOP - Cancer Research for the Ozarks
      • Springfield, Missouri, United States, 65807
        • Cancer Research for the Ozarks
    • Montana
      • Billings, Montana, United States, 59101
        • CCOP - Montana Cancer Consortium
    • Nebraska
      • Omaha, Nebraska, United States, 68114
        • Methodist Cancer Center - Omaha
      • Omaha, Nebraska, United States, 68105-1018
        • Nebraska Health System
    • Nevada
      • Las Vegas, Nevada, United States, 89106
        • CCOP - Southern Nevada Cancer Research Foundation
    • New Hampshire
      • Lebanon, New Hampshire, United States, 03756-0002
        • Norris Cotton Cancer Center
      • Manchester, New Hampshire, United States, 03103
        • Elliot Regional Cancer Center
    • New Jersey
      • Camden, New Jersey, United States, 08103
        • Cooper Cancer Institute
      • East Orange, New Jersey, United States, 07018-1095
        • Veterans Affairs Medical Center - East Orange
      • Edison, New Jersey, United States, 08818
        • John F. Kennedy Medical Center
      • Elizabeth, New Jersey, United States, 07201
        • Trinitas Hospital - Jersey Street Campus
      • Long Branch, New Jersey, United States, 07740-6395
        • Monmouth Medical Center
      • Millville, New Jersey, United States, 08332
        • South Jersey Regional Cancer Center
      • Mount Holly, New Jersey, United States, 08060
        • Fox Chase Cancer Center at Virtua Memorial Hospital Burlington County
      • New Brunswick, New Jersey, United States, 08901
        • Cancer Institute of New Jersey
      • Newark, New Jersey, United States, 07112
        • Newark Beth Israel Medical Center
      • Pomona, New Jersey, United States, 08240
        • Atlantic City Medical Center
      • Toms River, New Jersey, United States, 08755
        • Community Medical Center
      • Trenton, New Jersey, United States, 08629
        • St. Francis Medical Center
      • Trenton, New Jersey, United States, 08607
        • Capital Health System at Mercer
      • Warren, New Jersey, United States, 07059
        • Associated Radiologists, P.A.
    • New Mexico
      • Albuquerque, New Mexico, United States, 87102
        • Saint Joseph Medical Center
    • New York
      • Albany, New York, United States, 12208
        • Cancer Center of Albany Medical Center
      • Bronx, New York, United States, 10461
        • Albert Einstein Comprehensive Cancer Center
      • Brooklyn, New York, United States, 11203
        • State University of New York Health Science Center at Brooklyn
      • Brooklyn, New York, United States, 11215-3609
        • New York Methodist Hospital
      • Buffalo, New York, United States, 14263-0001
        • Roswell Park Cancer Institute
      • Clifton Springs, New York, United States, 14432
        • Finger Lakes Radiation Oncology, P.C.
      • Manhasset, New York, United States, 11030
        • CCOP - North Shore University Hospital
      • New York, New York, United States, 10021
        • Memorial Sloan-Kettering Cancer Center
      • New York, New York, United States, 10003
        • Beth Israel Medical Center
      • New York, New York, United States, 10032
        • Herbert Irving Comprehensive Cancer Center
      • Plattsburgh, New York, United States, 12901
        • Champlain Valley Physicians Hospital Medical Center
      • Poughkeepsie, New York, United States, 12601
        • Vassar Brothers Hospital
      • Rochester, New York, United States, 14642
        • University of Rochester Cancer Center
      • Valhalla, New York, United States, 10595
        • New York Medical College
    • North Carolina
      • Chapel Hill, North Carolina, United States, 27599-7295
        • Lineberger Comprehensive Cancer Center, UNC
      • Concord, North Carolina, United States, 28025
        • Northeast Medical Center
      • Greenville, North Carolina, United States, 27858-4354
        • East Carolina University School of Medicine
      • Hickory, North Carolina, United States, 28601
        • Catawba Memorial Hospital
      • Winston-Salem, North Carolina, United States, 27104-4241
        • CCOP - Southeast Cancer Control Consortium
      • Winston-Salem, North Carolina, United States, 27157-1082
        • Comprehensive Cancer Center at Wake Forest University
    • North Dakota
      • Fargo, North Dakota, United States, 58122
        • Meritcare Roger Maris Cancer Center
    • Ohio
      • Akron, Ohio, United States, 44302
        • Akron General Medical Center
      • Akron, Ohio, United States, 44309
        • Akron City Hospital
      • Cincinnati, Ohio, United States, 45219
        • Christ Hospital
      • Cleveland, Ohio, United States, 44106
        • University Hospitals of Cleveland
      • Cleveland, Ohio, United States, 44106-5065
        • Ireland Cancer Center
      • Columbus, Ohio, United States, 43210-1240
        • Arthur G. James Cancer Hospital - Ohio State University
      • Columbus, Ohio, United States, 43206
        • CCOP - Columbus
      • Kettering, Ohio, United States, 45429
        • CCOP - Dayton
      • Toledo, Ohio, United States, 43623-3456
        • CCOP - Toledo Community Hospital Oncology Program
    • Oklahoma
      • Oklahoma City, Oklahoma, United States, 73101
        • St. Anthony Hospital
      • Tulsa, Oklahoma, United States, 74104
        • St. John Health System
    • Oregon
      • Portland, Oregon, United States, 97213
        • CCOP - Columbia River Program
    • Pennsylvania
      • Allentown, Pennsylvania, United States, 18103
        • Lehigh Valley Hospital
      • Bethlehem, Pennsylvania, United States, 18015
        • St. Luke's Hospital Regional Cancer Center
      • Danville, Pennsylvania, United States, 17822-2001
        • Geisinger Medical Center
      • Darby, Pennsylvania, United States, 19023
        • Mercy Catholic Medical Center, Mercy Fitzgerald Divison
      • Drexel Hill, Pennsylvania, United States, 19026
        • Delaware County Memorial Hospital
      • Hershey, Pennsylvania, United States, 17033
        • Penn State Geisinger Cancer Center
      • Philadelphia, Pennsylvania, United States, 19111
        • Fox Chase Cancer Center
      • Philadelphia, Pennsylvania, United States, 19104
        • Veterans Affairs Medical Center - Philadelphia
      • Philadelphia, Pennsylvania, United States, 19141
        • Albert Einstein Cancer Center
      • Philadelphia, Pennsylvania, United States, 19102-1192
        • Hahnemann University Hospital
      • Philadelphia, Pennsylvania, United States, 19104-4283
        • University of Pennsylvania Cancer Center
      • Philadelphia, Pennsylvania, United States, 19107-5541
        • Kimmel Cancer Center of Thomas Jefferson University - Philadelphia
      • Pittsburgh, Pennsylvania, United States, 15224
        • Western Pennsylvania Hospital
      • Pittsburgh, Pennsylvania, United States, 15213-3489
        • University of Pittsburgh Cancer Institute
      • Pittsburgh, Pennsylvania, United States, 15219
        • Mercy Hospital of Pittsburgh
      • Reading, Pennsylvania, United States, 19612-6052
        • Reading Hospital and Medical Center
      • Scranton, Pennsylvania, United States, 18501
        • Mercy Hospital Cancer Center - Scranton
      • Wilkes-Barre, Pennsylvania, United States, 18764
        • Wilkes Barre General Hospital
      • Wynnewood, Pennsylvania, United States, 19096
        • CCOP - MainLine Health
      • York, Pennsylvania, United States, 17315
        • York Hospital
    • Rhode Island
      • Providence, Rhode Island, United States, 02908-4735
        • Roger Williams Medical Center/BUSM
    • South Carolina
      • Charleston, South Carolina, United States, 29425-0721
        • Medical University of South Carolina
      • Greenville, South Carolina, United States, 29615
        • CCOP - Greenville
      • Spartanburg, South Carolina, United States, 29303
        • CCOP - Upstate Carolina
    • South Dakota
      • Rapid City, South Dakota, United States, 57709
        • Rapid City Regional Hospital
    • Tennessee
      • Jackson, Tennessee, United States, 38301
        • Jackson-Madison County General Hospital
      • Memphis, Tennessee, United States, 38103
        • University of Tennessee, Memphis Cancer Center
      • Nashville, Tennessee, United States, 37232-6838
        • Vanderbilt-Ingram Cancer Center
    • Texas
      • Amarillo, Texas, United States, 79106
        • Harrington Cancer Center
      • Beaumont, Texas, United States, 77701
        • Julie and Ben Rogers Cancer Institute
      • Galveston, Texas, United States, 77555-0209
        • University of Texas Medical Branch
      • Houston, Texas, United States, 77030-4009
        • University of Texas - MD Anderson Cancer Center
      • Lackland Air Force Base, Texas, United States, 78236-5300
        • Wilford Hall - 59th Medical Wing
      • Lubbock, Texas, United States, 79410-1894
        • Joe Arrington Cancer Research and Treatment Center
      • Pasadena, Texas, United States, 77504
        • Bayshore Medical Center
      • Tyler, Texas, United States, 75701
        • East Texas Medical Center - Cancer Institute
    • Utah
      • Saint George, Utah, United States, 84770
        • Dixie Regional Medical Center
      • Salt Lake City, Utah, United States, 84132
        • University of Utah Health Sciences Center
      • Salt Lake City, Utah, United States, 84143
        • LDS Hospital
    • Vermont
      • Bennington, Vermont, United States, 05201
        • CCOP - Southwestern Vermont Regional Cancer Center
      • Burlington, Vermont, United States, 05401-3498
        • Vermont Cancer Center
      • Rutland, Vermont, United States, 05701
        • Green Mountain Oncology Group
    • Virginia
      • Charlottesville, Virginia, United States, 22901
        • Martha Jefferson Hospital
      • Charlottesville, Virginia, United States, 22908
        • Cancer Center at the University of Virginia
      • Harrisonburg, Virginia, United States, 22801
        • RMH Regional Canter Center
    • Washington
      • Seattle, Washington, United States, 98111
        • Virginia Mason Medical Center
      • Spokane, Washington, United States, 99210-0248
        • Deaconess Medical Center
      • Yakima, Washington, United States, 98902
        • Yakima Valley Memorial Hospital
    • West Virginia
      • Wheeling, West Virginia, United States, 26003
        • Schiffler Cancer Center
    • Wisconsin
      • Green Bay, Wisconsin, United States, 54307-3508
        • St. Vincent Hospital
      • La Crosse, Wisconsin, United States, 54601
        • Gundersen Lutheran Medical Foundation
      • Madison, Wisconsin, United States, 53792-6164
        • University of Wisconsin Comprehensive Cancer Center
      • Madison, Wisconsin, United States, 53713
        • Southern Wisconsin Radiotherapy Center
      • Marshfield, Wisconsin, United States, 54449
        • Marshfield Clinic
      • Menomonee Falls, Wisconsin, United States, 53051
        • Community Memorial Hospital
      • Milwaukee, Wisconsin, United States, 53226
        • Medical College Of Wisconsin
      • Milwaukee, Wisconsin, United States, 53210
        • St. Joseph's Hospital
      • Milwaukee, Wisconsin, United States, 53211
        • Columbia Hospital
      • Milwaukee, Wisconsin, United States, 53215
        • St. Luke's Medical Center
      • Milwaukee, Wisconsin, United States, 53295
        • Veterans Affairs Medical Center - Milwaukee (Zablocki)
      • Racine, Wisconsin, United States, 53405
        • Southeastern Wisconsin Regional Cancer Center
      • Waukesha, Wisconsin, United States, 53188
        • Waukesha Memorial Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion criteria:

  • Histologically confirmed locally confined adenocarcinoma of the prostate with primary tumors confined to the prostate, clinical stage T1b,1c, 2a or 2b.
  • Negative nodes evaluated by imaging methods (classified in the study as NX) or by surgical sampling (classified in the study as N0).
  • Karnofsky performance status ≥ 70.
  • PSA is mandatory, must be ≤ 20)
  • No prior hormonal therapy, radiation or chemotherapy.
  • Prior finasteride for prostate hypertrophy allowed if discontinued at least 60 days prior to randomization.
  • Prior testosterone administration allowed if at least 90 days elapsed since last administration.
  • No evidence of distant metastasis or other synchronous primary. Patients with prior invasive malignancy who were disease free for at least 5 years could be eligible with pre-randomization approval by the study chairman.
  • Treatment begins within 21 days after randomization.
  • Patients signs a study-specific informed consent form.
  • Alanine Aminotransferase (ALT) within 2x upper normal limits.

Exclusion criteria:

  • Stage T1a or ≥ T2c disease.
  • Lymph node involvement (N1 - N3).
  • Evidence of distant metastasis. (M1)
  • PSA > 20.
  • Radical surgery or cryosurgery for carcinoma of the prostate, previous irradiation, antiandrogen therapy or chemotherapy.
  • Previous or concurrent cancers other than basal cell or squamous cell skin carcinoma.

Patients with squamous cell carcinomas required to be NED (no evidence of disease) for a minimum of two years prior to study entry.

  • Major medical or psychiatric illness which, in the investigator's opinion, would prevent completion of treatment and would interfere with follow-up.
  • Karnofsky performance status of < 70.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
EXPERIMENTAL: Neoadjuvant TAS + RT
Neoadjuvant total androgen suppression (TAS) - Flutamide and Zoladex or Lupron - two months before and during radiation therapy.
Two 125 mg capsules (t.i.d., p.o.) beginning two months before RT and continuing until RT is completed.
Other Names:
  • Eulexin
3.6 mg s.c. monthly x 4 beginning two months before RT and continuing until RT is completed. The 3-month preparation may be used instead of three separate monthly injections.
Other Names:
  • goserelin acetate
7.5 mg IM (intramuscular) monthly x 4 beginning two months before RT and continuing until RT is completed. The 3-month preparation may be used instead of three separate monthly injections.
Other Names:
  • leuprolide acetate
46.8 Gy (1.8 Gy/day four to five times a week [26 fx]) to regional lymphatics followed by 19.8 Gy (1.8 Gy/day x 11 fx) for a total of 66.6 Gy to the prostate. Prostate only may be treated in defined circumstances.
OTHER: Radiation therapy alone
46.8 Gy (1.8 Gy/day four to five times a week [26 fx]) to regional lymphatics followed by 19.8 Gy (1.8 Gy/day x 11 fx) for a total of 66.6 Gy to the prostate. Prostate only may be treated in defined circumstances.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Overall Survival Rate (10-year)
Time Frame: From date of randomization to 10 years
Overall survival (OS) was calculated from randomization to the date of death from any cause and overall survival rates were estimated by the Kaplan-Meier method.
From date of randomization to 10 years

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Disease-specific Survival Rate (10 Years)
Time Frame: From registration to 10 years
Disease-specific failure is defined as death certified as due to prostate cancer (by central review), death due to complications of treatment (irrespective of malignancy status), death from unknown causes with active malignancy, or death from unknown causes with previously documented relapse (either clinical or biochemical). Survival rates were estimated by means of cumulative incidence functions.
From registration to 10 years
Local Progression Rate (10 Years)
Time Frame: From registration to 10 years
Local progression defined as documented local progression as determined by clinical exam . Failure rates were estimated by means of cumulative incidence functions.
From registration to 10 years
Distant Failure Rate (10 Years)
Time Frame: From registration to 10 years
Failure is defined as documented metastatic disease. Failure rates were estimated by means of cumulative incidence functions.
From registration to 10 years
Biochemical Failure Rate (10 Years)
Time Frame: From registration to 10 years
The Phoenix definition of biochemical failure was used - an increase in the prostate-specific antigen (PSA) level of >2 ng per milliliter above the nadir. Failure rates were estimated by means of cumulative incidence functions.
From registration to 10 years
Clinical Relapse Rate (10 Years)
Time Frame: From registration to 10 years
Clinical relapse is defined as local progression or distant metastases. Failure rates were estimated by means of cumulative incidence functions.
From registration to 10 years
Second Biochemical Relapse Rate (10 Years)
Time Frame: From registration to 10 years
Second biochemical relapse is as defined as follows (after initiation of salvage hormone therapy): A rise in PSA on at least two consecutive cases above the nadir (after initiation of salvage hormone therapy), with the rises in PSA exceeding 1 ng/ml above the nadir; or failure to reach 4 ng/L or less at 18 months. The rates of second biochemical relapse were estimated by means of cumulative incidence functions.
From registration to 10 years
Disease-free Survival Rate (10 Years)
Time Frame: From registration to 10 years
Disease-free failure is defined as documentation of progression (local progression, distant failure, and biochemical failure) or death from any cause. Disease-free survival rates were estimated by the Kaplan-Meier method.
From registration to 10 years
Positive Re-biopsy Rate at Two Years
Time Frame: From registration to two years
The rate of prostate rebiopsy at two years is defined as the proportion of patients whose results are positive among all eligible patients who had a repeat biopsy at two years. The rate was estimated separately in each arm.
From registration to two years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Chair: David G. McGowan, MD, Cross Cancer Institute at University of Alberta

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

October 1, 1994

Primary Completion (ACTUAL)

July 1, 2011

Study Completion (ACTUAL)

May 14, 2018

Study Registration Dates

First Submitted

November 1, 1999

First Submitted That Met QC Criteria

February 26, 2004

First Posted (ESTIMATE)

February 27, 2004

Study Record Updates

Last Update Posted (ACTUAL)

June 14, 2018

Last Update Submitted That Met QC Criteria

May 15, 2018

Last Verified

May 1, 2018

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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