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Completed Phase 3 Interventional Accepts healthy volunteers Results available

Tadalafil in Preventing Erectile Dysfunction in Patients With Prostate Cancer Treated With Radiation Therapy

ClinicalTrials.gov ID: NCT00931528

Public ClinicalTrials.gov record NCT00931528. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced May 14, 2026, 7:14 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Randomized, Double-blind, Placebo-controlled Phase III Trial to Evaluate the Effectiveness of a Phosphodiesterase 5 Inhibitor, Tadalafil, in Prevention of Erectile Dysfunction in Patients Treated With Radiotherapy for Prostate Cancer

Study identification

NCT ID
NCT00931528
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
Radiation Therapy Oncology Group
Network
Enrollment
242 participants

Conditions and interventions

Interventions

  • Placebo Other
  • Tadalafil Drug

Other · Drug

Eligibility (public fields only)

Age range
18 Years to 120 Years
Sex
Male
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Oct 31, 2009
Primary completion
Nov 30, 2012
Completion
Oct 31, 2014
Last update posted
Feb 13, 2018

2009 – 2014

United States locations

U.S. sites
183
U.S. states
38
U.S. cities
154
Facility City State ZIP Site status
University of Alabama at Birmingham Birmingham Alabama 35294
Providence Hospital Mobile Alabama 36608
Arizona Center for Cancer Care-Peoria Peoria Arizona 85381
Mayo Clinic in Arizona Scottsdale Arizona 85259
Arizona Oncology Services Foundation Scottsdale Arizona 85260
Arizona Oncology Associates-West Orange Grove Tucson Arizona 85704
Sutter Cancer Centers Radiation Oncology Services-Auburn Auburn California 95603
Alta Bates Summit Medical Center-Herrick Campus Berkeley California 94704
Sutter Cancer Centers Radiation Oncology Services-Cameron Park Cameron Park California 95682
Mercy San Juan Medical Center Carmichael California 95608
Enloe Medical Center Chico California 95926
Saint Agnes Medical Center Fresno California 93720
Veterans Administration Long Beach Medical Center Long Beach California 90822
Northridge Hospital Medical Center Northridge California 91325
Kaiser Permanente Oakland-Broadway Oakland California 94611
Sutter Cancer Centers Radiation Oncology Services-Roseville Roseville California 95661
Radiological Associates of Sacramento Sacramento California 95815
Mercy General Hospital Radiation Oncology Center Sacramento California 95819
UCSF-Mount Zion San Francisco California 94115
California Pacific Medical Center San Francisco California 94118
Kaiser Permanente Cancer Treatment Center South San Francisco California 94080
Sutter Cancer Centers Radiation Oncology Services-Vacaville Vacaville California 95687
Sutter Solano Medical Center Vallejo California 94589
University of Colorado Cancer Center - Anschutz Cancer Pavilion Aurora Colorado 80045
Penrose-Saint Francis Healthcare Colorado Springs Colorado 80907
The Hospital of Central Connecticut New Britain Connecticut 06050
Christiana Care Health System-Christiana Hospital Newark Delaware 19718
Washington Hospital Center Washington D.C. District of Columbia 20010
Broward Health North Deerfield Beach Florida 33064
University of Florida Gainesville Florida 32610
Baptist Cancer Institute Jacksonville Florida 32207
Cancer Specialists of North Florida-Southside Jacksonville Florida 32207
University of Florida Health Science Center Jacksonville Florida 32209
Mayo Clinic in Florida Jacksonville Florida 32224-9980
Cancer Specialists of North Florida-Baptist South Jacksonville Florida 32258
Cancer Specialists of North Florida-Beaches Jacksonville Beach Florida 32250
University of Miami Miller School of Medicine-Sylvester Cancer Center Miami Florida 33136
21st Century Oncology-Orange Park Orange Park Florida 32073
21st Century Oncology-Palatka Palatka Florida 32177
Cancer Specialists of North Florida-Saint Augustine Saint Augustine Florida 32086
John B Amos Cancer Center Columbus Georgia 31904
Atlanta VA Medical Center Decatur Georgia 30033
Lewis Cancer and Research Pavilion at Saint Joseph's/Candler Savannah Georgia 31405
Queen's Medical Center Honolulu Hawaii 96813
University of Hawaii Cancer Center Honolulu Hawaii 96813
The Cancer Center of Hawaii-Liliha Honolulu Hawaii 96817
Saint Alphonsus Cancer Care Center-Boise Boise Idaho 83706
Advocate Illinois Masonic Medical Center Chicago Illinois 60657
Advocate Lutheran General Hospital. Park Ridge Illinois 60068
Saint John's Hospital Springfield Illinois 62702
Carle Cancer Center Urbana Illinois 61801
Saint Vincent Anderson Regional Hospital/Cancer Center Anderson Indiana 46016
IU Health Bloomington Bloomington Indiana 47403
Radiation Oncology Associates PC Fort Wayne Indiana 46804
Parkview Hospital Randallia Fort Wayne Indiana 46805
IU Health Goshen Center for Cancer Care Goshen Indiana 46526
Memorial Hospital of South Bend South Bend Indiana 46601
Northern Indiana Cancer Research Consortium South Bend Indiana 46628
Baptist Health Lexington Lexington Kentucky 40503
Mary Bird Perkins Cancer Center Baton Rouge Louisiana 70809
Ochsner Clinic CCOP New Orleans Louisiana 70121
Central Maine Medical Center Lewiston Maine 04240
Maine Medical Center- Scarborough Campus Scarborough Maine 04074
University of Maryland/Greenebaum Cancer Center Baltimore Maryland 21201
Saint Agnes Hospital Baltimore Maryland 21229
Johns Hopkins University/Sidney Kimmel Comprehensive Cancer Center Baltimore Maryland 21287
Central Maryland Radiation Oncology in Howard County Columbia Maryland 21044
Tate Cancer Center Glen Burnie Maryland 21061
Saint Anne's Hospital Fall River Massachusetts 02721
Cape Cod Hospital Hyannis Massachusetts 02601
Bronson Battle Creek Battle Creek Michigan 49017
Huron Valley-Sinai Hospital Commerce Michigan 48382
Wayne State University/Karmanos Cancer Institute Detroit Michigan 48201
Henry Ford Hospital Detroit Michigan 48202
Saint John Hospital and Medical Center Detroit Michigan 48236
McLaren-Flint Flint Michigan 48532
Mercy Health Saint Mary's Grand Rapids Michigan 49503
Spectrum Health at Butterworth Campus Grand Rapids Michigan 49503
West Michigan Cancer Center Kalamazoo Michigan 49007
William Beaumont Hospital-Royal Oak Royal Oak Michigan 48073
Saint Mary's of Michigan Saginaw Michigan 48601
Saint Luke's Hospital of Duluth Duluth Minnesota 55805
Mayo Clinic Rochester Minnesota 55905
Coborn Cancer Center at Saint Cloud Hospital Saint Cloud Minnesota 56303
United Hospital Saint Paul Minnesota 55102
Siteman Cancer Center - Saint Peters City of Saint Peters Missouri 63376
Washington University School of Medicine St Louis Missouri 63110
Barnes-Jewish West County Hospital St Louis Missouri 63141
Good Samaritan Hospital Kearney Nebraska 68847
Saint Elizabeth Regional Medical Center Lincoln Nebraska 68510
Nebraska Methodist Hospital Omaha Nebraska 68114
Concord Hospital Concord New Hampshire 03301
Wentworth-Douglass Hospital Dover New Hampshire 03820
Exeter Hospital Exeter New Hampshire 03833
Elliot Hospital Manchester New Hampshire 03103
Cooper Hospital University Medical Center Camden New Jersey 08103
MD Anderson Cancer Center at Cooper-Voorhees Voorhees Township New Jersey 08043
University of New Mexico Cancer Center Albuquerque New Mexico 87106
Memorial Medical Center - Las Cruces Las Cruces New Mexico 88011
New York Oncology Hematology PC - Albany Albany New York 12206
Southside Hospital Bay Shore New York 11706
Lourdes Hospital Binghamton New York 13905
Veteran Affairs New York Harbor Healthcare System-Brooklyn Campus Brooklyn New York 11209
Roswell Park Cancer Institute Buffalo New York 14263
Long Island Jewish Medical Center New Hyde Park New York 11040
Columbia University Medical Center New York New York 10032
Mission Hospital-Memorial Campus Asheville North Carolina 28801
Duke University Medical Center Durham North Carolina 27710
High Point Regional Hospital High Point North Carolina 27261
The Coleman Radiation Center-Carteret General Hospital Morehead City North Carolina 28557
CarolinaEast Health System-Medical Center New Bern North Carolina 28560
South Atlantic Radiation Oncology Supply North Carolina 28462
Coastal Carolina Radiation Oncology Wilmington North Carolina 28401
New Hanover Regional Medical Center Wilmington North Carolina 28401
Summa Akron City Hospital/Cooper Cancer Center Akron Ohio 44304
Summa Barberton Hospital Barberton Ohio 44203
University of Cincinnati Cincinnati Ohio 45267
Case Western Reserve University Cleveland Ohio 44106
Cleveland Clinic Cancer Center/Fairview Hospital Cleveland Ohio 44111
Cleveland Clinic Foundation Cleveland Ohio 44195
Arthur G. James Cancer Hospital and Solove Research Institute at Ohio State University Medical Center Columbus Ohio 43210
Ohio State University Medical Center Columbus Ohio 43210
Cleveland Clinic Cancer Center Independence Independence Ohio 44131
Toledo Clinic Cancer Centers-Maumee Maumee Ohio 43537
Hillcrest Hospital Cancer Center Mayfield Heights Ohio 44124
Lake University Ireland Cancer Center Mentor Ohio 44060
Southwest General Health Center Ireland Cancer Center Middleburg Heights Ohio 44130
UHHS-Chagrin Highlands Medical Center Orange Ohio 44122
Cancer Care Center, Incorporated Salem Ohio 44460
Flower Hospital Sylvania Ohio 43560
UHHS-Westlake Medical Center Westlake Ohio 44145
Cancer Treatment Center Wooster Ohio 44691
Cleveland Clinic Wooster Specialty Center Wooster Ohio 44691
University of Oklahoma Health Sciences Center Oklahoma City Oklahoma 73104
Clackamas Radiation Oncology Center Clackamas Oregon 97015
Willamette Valley Cancer Center Eugene Oregon 97401
Three Rivers Community Hospital Grants Pass Oregon 97527
Providence Medford Medical Center Medford Oregon 97504
Rogue Valley Medical Center Medford Oregon 97504
Providence Portland Medical Center Portland Oregon 97213
Western Oncology Research Consortium Portland Oregon 97213
Providence Saint Vincent Medical Center Portland Oregon 97225
Abington Memorial Hospital Abington Pennsylvania 19001
Bryn Mawr Hospital Bryn Mawr Pennsylvania 19010
Delaware County Memorial Hospital Drexel Hill Pennsylvania 19026
Fox Chase Cancer Center Buckingham Furlong Pennsylvania 18925
Adams Cancer Center Gettysburg Pennsylvania 17325
Cherry Tree Cancer Center Hanover Pennsylvania 17331
Academic Urology Prostate Center King of Prussia Pennsylvania 19406
Fox Chase Cancer Center Philadelphia Pennsylvania 19111
Albert Einstein Medical Center Philadelphia Pennsylvania 19141
Lankenau Medical Center Wynnewood Pennsylvania 19096
WellSpan Health-York Hospital York Pennsylvania 17405
Spartanburg Regional Medical Center Spartanburg South Carolina 29303
Rapid City Regional Hospital Rapid City South Dakota 57701
Texas Oncology-Denton South Denton Texas 76210
The Klabzuba Cancer Center Fort Worth Texas 76104
University of Texas Medical Branch at Galveston Galveston Texas 77555-0565
West Texas Cancer Center Odessa Texas 79761
University of Texas Health Science Center San Antonio Texas 78229
Texas Cancer Center-Sherman Sherman Texas 75090
Texas Oncology Cancer Center Sugar Land Sugar Land Texas 77479
Tyler Cancer Center Tyler Texas 75702
Intermountain Medical Center Murray Utah 84157
Utah Valley Regional Medical Center Provo Utah 84604-3337
Utah Cancer Specialists-Salt Lake City Salt Lake City Utah 84106
Huntsman Cancer Institute/University of Utah Salt Lake City Utah 84112
Dixie Medical Center Regional Cancer Center St. George Utah 84770
University of Virginia Charlottesville Virginia 22908
Danville Regional Medical Center Danville Virginia 24541
Virginia Mason CCOP Seattle Washington 98101
Compass Oncology Vancouver Vancouver Washington 98684
Appleton Medical Center Appleton Wisconsin 54911
Saint Vincent Hospital Green Bay Wisconsin 54301
Gundersen Lutheran La Crosse Wisconsin 54601
Mayo Clinic Health System-Franciscan Healthcare La Crosse Wisconsin 54601
Bay Area Medical Center Marinette Wisconsin 54143
Aurora Saint Luke's Medical Center Milwaukee Wisconsin 53215
Clement J. Zablocki VA Medical Center Milwaukee Wisconsin 53295
Oconomowoc Memorial Hospital-ProHealth Care Inc Oconomowoc Wisconsin 53066-3896
Door County Cancer Center Sturgeon Bay Wisconsin 54235-1495
Waukesha Memorial Hospital - ProHealth Care Waukesha Wisconsin 53188
Aurora West Allis Medical Center West Allis Wisconsin 53227

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 9 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00931528, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Feb 13, 2018 · Synced May 14, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00931528 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →