Breast CancerPhase 3NCT00003857
Radiation Therapy With or Without Optional Tamoxifen in Treating Women With Ductal Carcinoma in Situ
A Phase 3 study testing tamoxifen citrate, adjuvant therapy and radiation therapy in people with Breast Cancer, run by Radiation Therapy Oncology Group at 369 sites in 2 countries.
Trial summary
RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Estrogen can stimulate the growth of breast cancer cells. Hormone therapy using tamoxifen may fight breast cancer by blocking the uptake of estrogen by the tumor cells. Read more about this study
- Who is it for?
- Ages 26 to 120 years, women only
- Conditions the study is for
- Breast Cancer
- What is being tested?
- tamoxifen citrate, adjuvant therapy and radiation therapy
- Type of treatment
- Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 636 participants
- Where
- 369 sitesin 2 countries
- Study dates
- Dec 1999to 20 May 2022
- Phase
- Phase 3
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 26 to 120 years
- Women only
- No healthy volunteers
- Adult, Older adult
DISEASE CHARACTERISTICS:
- Ductal carcinoma in situ (DCIS) of the breast detected by mammogram at the time of diagnosis
- Unicentric
- Lesions ≤ 2.5 cm
- Low nuclei grade (NG1) or intermediate nuclei grade (NG2) with necrosis in < one third of the involved ducts
- Inked margins ≥ 3 mm
- Clinically node negative
- Non-palpable
- No suspicious areas on post-operative mammogram taken within 12 weeks after final surgery
- No bloody nipple discharge
- No more than 12 weeks since prior final surgery (arm II only)
- Hormone receptor status:
- Not specified
PATIENT CHARACTERISTICS:
Age:
- 26 and over
Sex:
- Female
Menopausal status:
- Not specified
Performance status:
- Not specified
Life expectancy:
- Not specified
Hematopoietic:
- Not specified
Hepatic:
- Not specified
Renal:
- Not specified
Other:
- Not pregnant or nursing
- No active connective tissue disorders (e.g., lupus or scleroderma)
- No prior malignancy within the past 5 years except adequately treated basal cell or squamous cell skin cancer or carcinoma in situ of the cervix
PRIOR CONCURRENT THERAPY:
Biologic therapy:
- Not specified
Chemotherapy:
- No prior chemotherapy
Endocrine therapy:
- No other concurrent hormonal therapy (e.g., raloxifene, hormone replacement therapy, or birth control pills)
Radiotherapy:
- No prior radiotherapy
Surgery:
- See Disease Characteristics
Trial locations and contacts
369 sites in 2 countries.
364 sites in 2 countries
United States300 sites
Leeward Radiation Oncology Center
‘Ewa Beach, Hawaii, 96706
Rosenfeld Cancer Center at Abington Memorial Hospital
Abington, Pennsylvania, 19001
Hickman Cancer Center at Bixby Medical Center
Adrian, Michigan, 49221
McDowell Cancer Center at Akron General Medical Center
Akron, Ohio, 44307
Albuquerque Regional Medical Center at Lovelace Sandia Health System
Albuquerque, New Mexico, 87102
University of New Mexico Cancer Research and Treatment Center
Albuquerque, New Mexico, 87131-5636
St. John's Cancer Center at St. John's Medical Center
Anderson, Indiana, 46016
AnMed Health Cancer Center
Anderson, South Carolina, 29621
St. Joseph Mercy Cancer Center at St. Joseph Mercy Hospital
Ann Arbor, Michigan, 48106-0995
CCOP - Michigan Cancer Research Consortium
Ann Arbor, Michigan, 48106
University of Michigan Comprehensive Cancer Center
Ann Arbor, Michigan, 48109-0942
DeCesaris Cancer Institute at Anne Arundel Medical Center
Annapolis, Maryland, 21401
Theda Care Cancer Institute
Appleton, Wisconsin, 54911
Northwest Community Hospital
Arlington Heights, Illinois, 60005
Rush-Copley Cancer Care Center
Aurora, Illinois, 60507
Greater Baltimore Medical Center
Baltimore, Maryland, 21204
Good Shepherd Hospital
Barrington, Illinois, 60010
Suburban Hospital
Bethesda, Maryland, 20814
St. Luke's Hospital Cancer Center
Bethlehem, Pennsylvania, 18015
CCOP - Montana Cancer Consortium
Billings, Montana, 59101
Northern Rockies Radiation Oncology Center
Billings, Montana, 59101
Deaconess Billings Clinic - Downtown
Billings, Montana, 59107-7000
St. Joseph Medical Center
Bloomington, Illinois, 61701
Regional Cancer Institute at Bloomington Hospital
Bloomington, Indiana, 47403
St. Luke's Mountain States Tumor Institute - Boise
Boise, Idaho, 83712
Massachusetts General Hospital Cancer Center
Boston, Massachusetts, 02114
Brigham and Women's Hospital
Boston, Massachusetts, 02115
Dana-Farber/Harvard Cancer Center at Dana Farber Cancer Institute
Boston, Massachusetts, 02115
Cancer Research Center at Boston Medical Center
Boston, Massachusetts, 02118
Cancer Treatment Center for Southern Kentucky
Bowling Green, Kentucky, 42101
St. Vincent's Medical Center
Bridgeport, Connecticut, 06606
Long Island College Hospital
Brooklyn, New York, 11201
Bryn Mawr Hospital
Bryn Mawr, Pennsylvania, 19010
Roswell Park Cancer Institute
Buffalo, New York, 14263-0001
Providence Saint Joseph Medical Center - Burbank
Burbank, California, 91505
Lahey Clinic Medical Center - Burlington
Burlington, Massachusetts, 01805
Fletcher Allen Health Care - University Health Center Campus
Burlington, Vermont, 05401
Fairview Ridges Hospital
Burnsville, Minnesota, 55337
Mercy Cancer Center at Mercy Medical Center
Canton, Ohio, 44708
St. Luke's Hospital
Cedar Rapids, Iowa, 52402
Cedar Rapids Oncology Associates
Cedar Rapids, Iowa, 52403
Mercy Regional Cancer Center at Mercy Medical Center
Cedar Rapids, Iowa, 52403
Lineberger Comprehensive Cancer Center at University of North Carolina - Chapel Hill
Chapel Hill, North Carolina, 27599-7295
Blumenthal Cancer Center at Carolinas Medical Center
Charlotte, North Carolina, 28232-2861
Martha Jefferson Hospital Cancer Care Center
Charlottesville, Virginia, 22901
Robert H. Lurie Comprehensive Cancer Center at Northwestern University
Chicago, Illinois, 60611-3013
John H. Stroger, Jr. Hospital of Cook County
Chicago, Illinois, 60612-3785
Creticos Cancer Center at Advocate Illinois Masonic Medical Center
Chicago, Illinois, 60657
Enloe Cancer Center at Enloe Medical Center
Chico, California, 95926
Adena Regional Medical Center
Chillicothe, Ohio, 45601
Cancer Treatment Center at Good Samaritan Hospital
Cincinnati, Ohio, 45220
Bethesda North Hospital
Cincinnati, Ohio, 45242
Case Comprehensive Cancer Center
Cleveland, Ohio, 44106
MetroHealth's Cancer Care Center at MetroHealth Medical Center
Cleveland, Ohio, 44109
Cleveland Clinic Taussig Cancer Center
Cleveland, Ohio, 44195
Ellis Fischel Cancer Center at University of Missouri - Columbia
Columbia, Missouri, 65203
Palmetto Health South Carolina Cancer Center
Columbia, South Carolina, 29203
Arthur G. James Cancer Hospital and Solove Research Institute at Ohio State University
Columbus, Ohio, 43210-1240
Riverside Methodist Hospital Cancer Care
Columbus, Ohio, 43214-3998
CCOP - Columbus
Columbus, Ohio, 43215
Mount Carmel Health - West Hospital
Columbus, Ohio, 43222
Mount Diablo Regional Cancer Center
Concord, California, 94524-4110
Bethke Cancer Center at Emerson Hospital
Concord, Massachusetts, 01742
Dartmouth - Hitchcock Concord
Concord, New Hampshire, 03301
Batte Cancer Center at Northeast Medical Center
Concord, North Carolina, 28025
Mercy and Unity Cancer Center at Mercy Hospital
Coon Rapids, Minnesota, 55433
Geisinger Medical Center
Danville, Pennsylvania, 17822-0001
Mercy Fitzgerald Hospital
Darby, Pennsylvania, 19023
Grady Memorial Hospital
Delaware, Ohio, 43015
Barbara Ann Karmanos Cancer Institute
Detroit, Michigan, 48201-1379
Josephine Ford Cancer Center at Henry Ford Hospital
Detroit, Michigan, 48202
Seacoast Cancer Center at Wentworth-Douglass Hospital
Dover, New Hampshire, 03820
Advocate Good Samaritan Hospital
Downers Grove, Illinois, 60515
St. Mary's - Duluth Clinic Cancer Center
Duluth, Minnesota, 55805
Duke Comprehensive Cancer Center
Durham, North Carolina, 27710
Veterans Affairs Medical Center - East Orange
East Orange, New Jersey, 07018-1095
Easton Regional Cancer Center at Easton Hospital
Easton, Pennsylvania, 18042
Fairview Southdale Hospital
Edina, Minnesota, 55435
John F. Kennedy Medical Center
Edison, New Jersey, 08818
Elkhart General Hospital
Elkhart, Indiana, 46515
Dizzy Gillespie Cancer Institute at Englewood Hospital and Medical Center
Englewood, New Jersey, 07631
Green Bay Oncology, Limited - Escanaba
Escanaba, Michigan, 49431
Fairbanks Cancer Treatment Center at Fairbanks Memorial Hospital
Fairbanks, Alaska, 99701
North Bay Cancer Center
Fairfield, California, 94533
Hudner Oncology Center at Saint Anne's Hospital
Fall River, Massachusetts, 02721
St. Francis Hospital
Federal Way, Washington, 98003
Blanchard Valley Medical Associates
Findlay, Ohio, 45840
Genesys Hurley Cancer Institute
Flint, Michigan, 48503
Great Lakes Cancer Institute at McLaren Regional Medical Center
Flint, Michigan, 48532
Parkview Regional Cancer Center at Parkview Health
Fort Wayne, Indiana, 46805
MetroWest Medical Center - Framingham Union Hospital
Framingham, Massachusetts, 01702
Washington Township Hospital
Fremont, California, 94538
Saint Agnes Medical Center
Fresno, California, 93720-3397
Mercy and Unity Cancer Center at Unity Hospital
Fridley, Minnesota, 55432
University of Florida Shands Cancer Center
Gainesville, Florida, 32610-0232
Northeast Georgia Medical Center
Gainesville, Georgia, 30501
InterCommunity Cancer Center of Western Illinois
Galesburg, Illinois, 61401
University of Texas Medical Branch
Galveston, Texas, 77555-0209
Wayne Memorial Hospital, Incorporated
Goldsboro, North Carolina, 27534
Wayne Radiation Oncology
Goldsboro, North Carolina, 27534
CCOP - Grand Rapids
Grand Rapids, Michigan, 49503
Lacks Cancer Center at Saint Mary's Mercy Medical Center
Grand Rapids, Michigan, 49503
Spectrum Health Cancer Care - Butterworth Campus
Grand Rapids, Michigan, 49503
Three Rivers Community Hospital
Grants Pass, Oregon, 97527
Great Falls Clinic
Great Falls, Montana, 59405
Green Bay Oncology, Limited at St. Vincent Hospital
Green Bay, Wisconsin, 54301-3526
Green Bay Oncology, Limited at St. Mary's Hospital
Green Bay, Wisconsin, 54303
St. Mary's Hospital Medical Center - Green Bay
Green Bay, Wisconsin, 54303
St. Vincent Hospital Regional Cancer Center
Green Bay, Wisconsin, 54307-3508
Vince Lombardi Cancer Clinic - Green Bay at Aurora BayCare Medical Center
Green Bay, Wisconsin, 54311
Leo W. Jenkins Cancer Center at Pitt County Memorial Hospital
Greenville, North Carolina, 27835-6028
Bon Secours St. Francis Health System
Greenville, South Carolina, 29601
CCOP - Greenville
Greenville, South Carolina, 29615
Legacy Mount Hood Medical Center
Gresham, Oregon, 97030
Van Elslander Cancer Center at St. John Hospital and Medical Center
Grosse Pointe Woods, Michigan, 48236
Pardee Memorial Hospital
Hendersonville, North Carolina, 28791
Cancer Research Center of Hawaii
Honolulu, Hawaii, 96813
Queen's Cancer Institute at Queen's Medical Center
Honolulu, Hawaii, 96813
St. Francis Medical Center
Honolulu, Hawaii, 96817
Tripler Army Medical Center
Honolulu, Hawaii, 96859
Saint Joseph's Mercy Cancer Center
Hot Springs, Arkansas, 71913
M.D. Anderson Cancer Center at University of Texas
Houston, Texas, 77030-4009
Cape Cod Hospital
Hyannis, Massachusetts, 02601
Hematology Oncology Associates of Eastern Idaho
Idaho Falls, Idaho, 83404
Indiana University Cancer Center
Indianapolis, Indiana, 46202-5289
Cancer Care Consultants Medical Associates at Daniel Freeman Memorial Hospital
Inglewood, California, 90301
Green Bay Oncology, Limited - Iron Mountain
Iron Mountain, Michigan, 49801
Foote Hospital
Jackson, Michigan, 49201
University of Mississippi Medical Center
Jackson, Mississippi, 39216
Mayo Clinic - Jacksonville
Jacksonville, Florida, 32224
Joliet Oncology-Hematology Associates, Limited - West
Joliet, Illinois, 60435
Borgess Medical Center
Kalamazoo, Michigan, 49001
West Michigan Cancer Center
Kalamazoo, Michigan, 49007-3731
Bronson Methodist Hospital
Kalamazoo, Michigan, 49007
CCOP - Kansas City
Kansas City, Missouri, 64131
Good Samaritan Cancer Center at Good Samaritan Hospital
Kearney, Nebraska, 68848-1990
Lenoir Memorial Cancer Center
Kinston, North Carolina, 28501
Cascade Cancer Center at Evergreen Hospital Medical Center
Kirkland, Washington, 98033
Howard Community Hospital at Howard Regional Health System
Kokomo, Indiana, 46904
Gundersen Lutheran Cancer Center at Gundersen Lutheran Medical Center
La Crosse, Wisconsin, 54601
Center for Cancer Therapy at LaPorte Hospital and Health Services
La Porte, Indiana, 46350
Lakeland Regional Cancer Center at Lakeland Regional Medical Center
Lakeland, Florida, 33805
St. Mary Regional Cancer Center
Langhorne, Pennsylvania, 19047
Breslin Cancer Center at Ingham Regional Medical Center
Lansing, Michigan, 48910
Doctor's Hospital of Laredo
Laredo, Texas, 78041
CCOP - Nevada Cancer Research Foundation
Las Vegas, Nevada, 89106
Norris Cotton Cancer Center at Dartmouth-Hitchcock Medical Center
Lebanon, New Hampshire, 03756-0002
Central Maine Medical Center
Lewiston, Maine, 04240
Central Baptist Hospital
Lexington, Kentucky, 40503-9985
St. Rita's Medical Center
Lima, Ohio, 45801
Lima Memorial Hospital
Lima, Ohio, 45804
Monmouth Medical Center
Long Branch, New Jersey, 07740-6395
USC/Norris Comprehensive Cancer Center and Hospital
Los Angeles, California, 90089-9181
Lowell General Hospital
Lowell, Massachusetts, 01854
Joe Arrington Cancer Research and Treatment Center
Lubbock, Texas, 79410-1894
University of Wisconsin Comprehensive Cancer Center
Madison, Wisconsin, 53792-6164
Merle M. Mahr Cancer Center at Regional Medical Center of Hopkins County
Madisonville, Kentucky, 42431
Elliot Regional Cancer Center at Elliot Hospital
Manchester, New Hampshire, 03103
CCOP - North Shore University Hospital
Manhasset, New York, 11030
North Shore University Hospital
Manhasset, New York, 11030
Immanuel St. Joseph's Clinic
Mankato, Minnesota, 56002
Strecker Cancer Center at Marietta Memorial Hospital
Marietta, Ohio, 45750
Bay Area Cancer Care Center at Bay Area Medical Center
Marinette, Wisconsin, 54143
Fox Chase Virtua Health Cancer Program - Marlton
Marlton, New Jersey, 08053
Upper Michigan Cancer Center at Marquette General Hospital
Marquette, Michigan, 49855
Northwest Ohio Oncology Center
Maumee, Ohio, 43623
Hillcrest Cancer Center at Hillcrest Hospital
Mayfield Heights, Ohio, 44124
Cardinal Bernardin Cancer Center at Loyola University Medical Center
Maywood, Illinois, 60153
Dubs Cancer Center at Rogue Valley Medical Center
Medford, Oregon, 97504
Providence Medford Medical Center
Medford, Oregon, 97504
Community Memorial Hospital Cancer Care Center
Menomonee Falls, Wisconsin, 53051
University of Miami Sylvester Comprehensive Cancer Center
Miami, Florida, 33136
Baptist-South Miami Regional Cancer Program
Miami, Florida, 33176
Saint Anthony Memorial Health Centers
Michigan City, Indiana, 46360
Tucker Center for Cancer Care at Orange Regional Medical Center
Middletown, New York, 10940-4199
MidMichigan Medical Center - Midland
Midland, Michigan, 48670
Community Cancer Care at Milford Regional Medical Center
Milford, Massachusetts, 01757
Columbia St. Mary's Cancer Care Center
Milwaukee, Wisconsin, 53211
Vince Lombardi Cancer Clinic at Aurora St. Luke's Medical Center
Milwaukee, Wisconsin, 53215
Providence Milwaukie Hospital
Milwaukie, Oregon, 97222
Virginia Piper Cancer Institute at Abbott-Northwestern Hospital
Minneapolis, Minnesota, 55407
Trinity Cancer Care Center
Minot, North Dakota, 58701
Providence Holy Cross Cancer Center
Mission Hills, California, 91346-9600
Mobile Infirmary Medical Center
Mobile, Alabama, 36652-2144
Memorial Medical Center Cancer Services
Modesto, California, 95355
Cottonwood Hospital Medical Center
Murray, Utah, 84107
Cancer Institute of New Jersey at UMDNJ - Robert Wood Johnson Medical School
New Brunswick, New Jersey, 08903
Saint Peter's University Hospital
New Brunswick, New Jersey, 08903
Hospital of Saint Raphael
New Haven, Connecticut, 06511
Long Island Jewish Medical Center
New Hyde Park, New York, 11042
Memorial Sloan-Kettering Cancer Center
New York, New York, 10021
CCOP - Christiana Care Health Services
Newark, Delaware, 19713
Newark Beth Israel Medical Center
Newark, New Jersey, 07112
Licking Memorial Cancer Care Program at Licking Memorial Hospital
Newark, Ohio, 43055
BroMenn Regional Medical Center
Normal, Illinois, 61761
Community Cancer Center
Normal, Illinois, 61761
Eastern Connecticut Hematology and Oncology Associates
Norwich, Connecticut, 06360
Caritas Norwood Hospital
Norwood, Massachusetts, 02062
CCOP - Bay Area Tumor Institute
Oakland, California, 94609
Regional Cancer Center at Oconomowoc Memorial Hospital
Oconomowoc, Wisconsin, 53066
Green Bay Oncology, Limited - Oconto Falls
Oconto Falls, Wisconsin, 54154
McKay-Dee Hospital Center
Ogden, Utah, 84403
Methodist Cancer Center at Methodist Hospital - Omaha
Omaha, Nebraska, 68114
St. Charles Mercy Hospital
Oregon, Ohio, 43616
Paoli Memorial Hospital
Paoli, Pennsylvania, 19301-1792
Lutheran General Cancer Care Center
Park Ridge, Illinois, 60068
Cancer Treatment Center at Pekin Hospital
Pekin, Illinois, 61554
CCOP - Illinois Oncology Research Association
Peoria, Illinois, 61615
Oncology Hematology Associates of Central Illinois, PC - Peoria
Peoria, Illinois, 61615
Methodist Medical Center of Illinois
Peoria, Illinois, 61636
OSF St. Francis Medical Center
Peoria, Illinois, 61637
Northern Michigan Hospital
Petoskey, Michigan, 49770
Kimmel Cancer Center at Thomas Jefferson University - Philadelphia
Philadelphia, Pennsylvania, 19107-5541
Fox Chase-Temple Cancer Center CCOP Research Base
Philadelphia, Pennsylvania, 19140
Arizona Oncology Services Foundation
Phoenix, Arizona, 85013
Moore Regional Community Hospital Comprehensive Cancer Center
Pinehurst, North Carolina, 28374
Mercy Cancer Institute at Mercy Hospital
Pittsburgh, Pennsylvania, 15219
Hillman Cancer Center at University of Pittsburgh Cancer Institute
Pittsburgh, Pennsylvania, 15232
Robert and Beverly Lewis Family Cancer Care Center at Pomona Valley Hospital Medical Center
Pomona, California, 91767
AtlantiCare Regional Medical Center
Pomona, New Jersey, 08240
Maine Medical Center - Bramhall Campus
Portland, Maine, 04102
Legacy Good Samaritan Hospital & Medical Center Comprehensive Cancer Center
Portland, Oregon, 97210
Providence Cancer Center at Providence Portland Medical Center
Portland, Oregon, 97213-2967
CCOP - Columbia River Oncology Program
Portland, Oregon, 97225
Providence St. Vincent Medical Center
Portland, Oregon, 97225
Legacy Emanuel Hospital and Health Center & Children's Hospital
Portland, Oregon, 97227
Cancer Institute at Oregon Health and Science University
Portland, Oregon, 97239-3098
Naval Medical Center - Portsmouth
Portsmouth, Virginia, 23708-2197
Utah Valley Regional Medical Center - Provo
Provo, Utah, 84604
Rex Cancer Center at Rex Hospital
Raleigh, North Carolina, 27607
Rapid City Regional Hospital
Rapid City, South Dakota, 57701
Reading Hospital and Medical Center
Reading, Pennsylvania, 19612-6052
Booker Cancer Center at Riverview Medical Center
Red Bank, New Jersey, 07701
Hubert H. Humphrey Cancer Center at North Memorial Medical Center
Robbinsdale, Minnesota, 55422-2900
Mayo Clinic Cancer Center
Rochester, Minnesota, 55905
William Beaumont Hospital - Royal Oak Campus
Royal Oak, Michigan, 48073
Rutherford Hospital
Rutherfordton, North Carolina, 28139
Community Cancer Center at Rutland Regional Medical Center
Rutland, Vermont, 05701
Radiological Associates of Sacramento Medical Group, Incorporated
Sacramento, California, 95815
University of California Davis Cancer Center
Sacramento, California, 95817
Seton Cancer Institute - Saginaw
Saginaw, Michigan, 48601
CentraCare Clinic - River Campus
Saint Cloud, Minnesota, 56303
Coborn Cancer Center
Saint Cloud, Minnesota, 56303
Lakeland Cancer Care Center at Lakeland Hospital - St. Joseph
Saint Joseph, Michigan, 49085
CCOP - Metro-Minnesota
Saint Louis Park, Minnesota, 55416
Park Nicollet Health Services
Saint Louis Park, Minnesota, 55416
Regions Hospital Cancer Care Center
Saint Paul, Minnesota, 55101
United Hospital
Saint Paul, Minnesota, 55102
Peninsula Regional Medical Center
Salisbury, Maryland, 21801
Utah Cancer Specialists at UCS Cancer Center
Salt Lake City, Utah, 84106
LDS Hospital
Salt Lake City, Utah, 84143
Firelands Regional Medical Center
Sandusky, Ohio, 44870
CCOP - Santa Rosa Memorial Hospital
Santa Rosa, California, 95405
Nancy N. and J. C. Lewis Cancer and Research Pavilion at St. Joseph's/Candler
Savannah, Georgia, 31405
Mercy Hospital Cancer Center - Scranton
Scranton, Pennsylvania, 18501
CCOP - Virginia Mason Research Center
Seattle, Washington, 98101
Group Health Central Hospital
Seattle, Washington, 98112
Swedish Cancer Institute at Swedish Medical Center - First Hill Campus
Seattle, Washington, 98122-4307
University Cancer Center at University of Washington Medical Center
Seattle, Washington, 98195-6043
Medical X-Ray Center, PC
Sioux Falls, South Dakota, 57105
Sioux Valley Hospital and University of South Dakota Medical Center
Sioux Falls, South Dakota, 57117-5039
CCOP - Northern Indiana CR Consortium
South Bend, Indiana, 46601
Memorial Hospital of South Bend
South Bend, Indiana, 46601
CCOP - Upstate Carolina
Spartanburg, South Carolina, 29303
Gibbs Regional Cancer Center at Spartanburg Regional Medical Center
Spartanburg, South Carolina, 29303
Cancer Care Northwest - Spokane South
Spokane, Washington, 99202
Valley Cancer Center
Spring Valley, Illinois, 61362
Baystate Regional Cancer Program at D'Amour Center for Cancer Care
Springfield, Massachusetts, 01199
Mercy Medical Center
Springfield, Ohio, 45504
Dixie Regional Medical Center - East Campus
St. George, Utah, 84770
Mount Nittany Medical Center
State College, Pennsylvania, 16803
Green Bay Oncology, Limited - Sturgeon Bay
Sturgeon Bay, Wisconsin, 54235
Promedica Cancer Center at Flower Hospital
Sylvania, Ohio, 43560
CCOP - Hematology-Oncology Associates of Central New York
Syracuse, New York, 13057
Madigan Army Medical Center - Tacoma
Tacoma, Washington, 98431
St. Vincent Mercy Medical Center
Toledo, Ohio, 43608
Medical University of Ohio Cancer Center
Toledo, Ohio, 43614
CCOP - Toledo Community Hospital
Toledo, Ohio, 43623
Toledo Clinic, Incorporated - Main Clinic
Toledo, Ohio, 43623
Stormont-Vail Cancer Center
Topeka, Kansas, 66604
St. Francis Comprehensive Cancer Center
Topeka, Kansas, 66606
Torrance Memorial Medical Center
Torrance, California, 90509
Munson Medical Center
Traverse City, Michigan, 49684
Fox Chase Cancer Center at St. Francis Medical Center
Trenton, New Jersey, 08629
Legacy Meridian Park Hospital
Tualatin, Oregon, 97062
Natalie Warren Bryant Cancer Center at St. Francis Hospital
Tulsa, Oklahoma, 74136
Carle Cancer Center at Carle Foundation Hospital
Urbana, Illinois, 61801
CCOP - Carle Cancer Center
Urbana, Illinois, 61801
Southwest Washington Medical Center Cancer Center
Vancouver, Washington, 98668
Cancer Institute of New Jersey at Cooper - Voorhees
Voorhees Township, New Jersey, 08043
Ridgeview Medical Center
Waconia, Minnesota, 55387
John Muir/Mt. Diablo Comprehensive Cancer Center
Walnut Creek, California, 94598
St. John Macomb Hospital
Warren, Michigan, 48093
St. Joseph Cancer Center at St. Joseph Health Center
Warren, Ohio, 44484
Lombardi Comprehensive Cancer Center at Georgetown University Medical Center
Washington D.C., District of Columbia, 20007
Waukesha Memorial Hospital Regional Cancer Center
Waukesha, Wisconsin, 53188
West Allis Memorial Hospital
West Milwaukee, Wisconsin, 53227
Mount Carmel Cancer Services at Mount Carmel St. Ann's Hospital
Westerville, Ohio, 43081
Ruby L. Golleher Cancer Program at Presbyterian Intercommunity Hospital
Whittier, California, 90602
Frank M. and Dorothea Henry Cancer Center at Geisinger Wyoming Valley Medical Center
Wilkes-Barre, Pennsylvania, 18711
Canada64 sites
Royal Victoria Hospital of Barrie
Barrie, Ontario, L4M 6M2
William Osler Health Centre
Brampton, Ontario, L6W 2Z8
Prince Edward Island Cancer Centre at Queen Elizabeth Hospital
Charlottetown, Prince Edward Island, C1A 8T5
Centre de Sante et de Services Sociaux de Chicoutimi
Chicoutimi, Quebec, G7H 5H6
Cross Cancer Institute at University of Alberta
Edmonton, Alberta, T6G 1Z2
CHUS-Hopital Fleurimont
Fleurimont, Quebec, J1H 5N4
Northeastern Ontario Regional Cancer Centre
Greater Sudbury, Ontario, P3E 5J1
Doctor Leon Richard Oncology Centre
Greenfield Park, Quebec, J4V 2H1
Hopital Charles Lemoyne
Greenfield Park, Quebec, J4V 2H1
Nova Scotia Cancer Centre
Halifax, Nova Scotia, B3H 1V7
St. Joseph's Hospital
Hamilton, Ontario, L8N 4A6
Margaret and Charles Juravinski Cancer Centre
Hamilton, Ontario, L8V 5C2
Centre Hospitalier Regional de Lanaudiere
Joliette, Quebec, J6E 6J2
British Columbia Cancer Agency - Centre for the Southern Interior
Kelowna, British Columbia, V1Y 5L3
Cancer Centre of Southeastern Ontario at Kingston General Hospital
Kingston, Ontario, K7L 5P9
Grand River Regional Cancer Centre at Grand River Hospital
Kitchner, Ontario, N2G 1G3
Lethbridge Cancer Centre
Lethbridge, Alberta, T1J 1W5
Hotel-Dieu de Levis
Lévis, Quebec, G6V 3Z1
London Regional Cancer Program at London Health Sciences Centre
London, Ontario, N6A 4L6
Markham Stouffville Hospital
Markham, Ontario, L6B IAI
Trillium Health Centre - Mississauga Site
Mississauga, Ontario, L5B 1B8
Moncton Hospital
Moncton, New Brunswick, E1C 6ZB
Centre Hospitalier de l'Universite de Montreal
Montreal, Quebec, (P.Q.) H2X 3J4
Maisonneuve-Rosemont Hospital
Montreal, Quebec, H1T 2M4
Hotel Dieu de Montreal
Montreal, Quebec, H2W 1T8
Hopital Sainte Justine
Montreal, Quebec, H3T 1C5
Hopital Du Sacre-Coeur de Montreal
Montreal, Quebec, H4J 1C5
Nanaimo Cancer Clinic at Nanaimo Regional General Hospital
Nanaimo, British Columbia, V9S 2B7
Southlake Regional Health Centre
Newmarket, Ontario, L3Y 2P9
Lions Gate Hospital
North Vancouver, British Columbia, V7L 2P9
North York General Hospital - Ontario
North York, Ontario, M2K 1E1
Male Health Centre - Oakville
Oakville, Ontario, L6H 3PI
R. S. McLaughlin Durham Regional Cancer Centre at Lakeridge Health Oshawa
Oshawa, Ontario, L1G 2B9
Ottawa Hospital Regional Cancer Centre - General Campus
Ottawa, Ontario, K1H 8L6
Peterborough Oncology Clinic
Peterborough, Ontario, K9H 7B6
Centre Hospitalier Universitaire de Quebec
Québec, Quebec, G1R 2J6
Hopital du Saint-Sacrement - Quebec
Québec, Quebec, G1S 4L8
Centre Hospitalier Regional de Rimouski
Québec, G1S 4L8
Allan Blair Cancer Centre at Pasqua Hospital
Regina, Saskatchewan, S4T 7T1
Saint John Regional Hospital
Saint John, New Brunswick, E2L 4L2
Saskatoon Cancer Centre at the University of Saskatchewan
Saskatoon, Saskatchewan, S7N 4H4
Algoma Regional Cancer Program at Sault Area Hospital
Sault Ste. Marie, Ontario, P6A 2C4
Scarborough Hospital - General Campus
Scarborough Village, Ontario, M1P 2V5
St. Catharines General Hospital at Niagara Health System
St. Catharines, Ontario, L2R 5K3
Newfoundland Cancer Treatment and Research Foundation
St. John's, Newfoundland and Labrador, A1B 3V6
L'Hopital Laval
Ste-Foy, Quebec, G1V 4G5
BCCA - Fraser Valley Cancer Centre
Surrey, British Columbia, V3V 1Z2
Cape Breton Cancer Centre
Sydney, Nova Scotia, B1P 1P3
Northwestern Ontario Regional Cancer Care at Thunder Bay Regional Health Sciences Centre
Thunder Bay, Ontario, P7B 6V4
Toronto East General Hospital
Toronto, Ontario, M4C 3E7
Toronto Sunnybrook Regional Cancer Centre at Sunnybrook Health Sciences Centre
Toronto, Ontario, M4N 3M5
St. Michael's Hospital - Toronto
Toronto, Ontario, M5B 1W8
Mount Sinai Hospital - Toronto
Toronto, Ontario, M5G 1X5
Princess Margaret Hospital
Toronto, Ontario, M5G 2M9
Male Health Centre - North York
Toronto, Ontario, M6A 3B5
St. Joseph's Health Centre - Toronto
Toronto, Ontario, M6R 1B5
Prostate Centre at Vancouver General Hospital
Vancouver, British Columbia, V5Z 3J5
British Columbia Cancer Agency - Vancouver Cancer Centre
Vancouver, British Columbia, V5Z 4E6
Providence Health Care - Vancouver
Vancouver, British Columbia, V6Z 1Y6
British Columbia Cancer Agency - Vancouver Island Cancer Centre
Victoria, British Columbia, V8R 6V5
G. Steinhoff Clinical Research
Victoria, British Columbia, V8V 3N1
Humber River Regional Hospital - Weston
Weston, Ontario, M9N 1N8
Windsor Regional Cancer Centre at Windsor Regional Hospital
Windsor, Ontario, N8W 2X3
CancerCare Manitoba
Winnipeg, Manitoba, R3E 0V9
About this study
Official title: Phase III Trial of Tamoxifen Alone vs. Tamoxifen Plus Radiation Therapy for Good Risk Duct Carcinoma In-Situ (DCIS) of the Female Breast
RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Estrogen can stimulate the growth of breast cancer cells. Hormone therapy using tamoxifen may fight breast cancer by blocking the uptake of estrogen by the tumor cells. It is not yet known if radiation therapy is more effective than observation, with or without tamoxifen, in treating ductal carcinoma in situ.
PURPOSE: Randomized phase III trial to compare the effectiveness of radiation therapy with that of observation, with or without tamoxifen, in treating women who have ductal carcinoma in situ.
Read the detailed description
OBJECTIVES:
- Compare the efficacy of whole breast radiotherapy vs observation with or without optional tamoxifen in decreasing or delaying the appearance of local failure (both invasive and in situ) and preventing the need for mastectomy in women with good-risk ductal carcinoma in situ (DCIS) of the breast.
- Compare distant disease-free survival of patients treated with these regimens.
OUTLINE: This is a randomized, multicenter study. Patients are stratified according to age (under 50 vs 50 and over), final path margins (negative vs 3-9 mm vs at least 10 mm), mammographic size of primary (no greater than 1 cm vs greater than 1 cm to 2.5 cm), nuclei grade (low vs intermediate), and tamoxifen use (yes vs no). Patients are randomized to 1 of 2 treatment arms.
- Arm I: Patients undergo observation and may receive optional oral tamoxifen once daily (at the discretion of the physician) for 5 years.
- Arm II: Beginning within 12 weeks after final surgery, patients receive radiotherapy to the whole breast once daily, 5 days a week, for 3.5-5.5 weeks. Patients may receive optional tamoxifen as in arm I.
Patients are followed every 3 months for 1 year, every 6 months for 2 years, and then annually thereafter.
PROJECTED ACCRUAL: A total of 1,790 patients will be accrued for this study within 6 years.
- Conditions
- Breast Cancer
- Being tested
- tamoxifen citrate, adjuvant therapy, radiation therapy
- Keywords
- breast cancer in situ, ductal breast carcinoma in situ
- Medical subject headings
- Breast Neoplasms, Breast Carcinoma In Situ, Carcinoma, Intraductal, Noninfiltrating
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
tamoxifen citrateDrug
adjuvant therapyProcedure or surgery
radiation therapyRadiation
| Study group | Role | What they receive |
|---|---|---|
| Observation +/- tamoxifen for 5 years | Active comparator | Observation +/- tamoxifen 20 mg per day for 5 years Receives: Drug: tamoxifen citrate; Procedure: adjuvant therapy |
| Radiation therapy +/- tamoxifen for 5 years | Experimental | Radiation therapy to the whole breast +/- tamoxifen 20 mg per day for 5 years Receives: Drug: tamoxifen citrate; Procedure: adjuvant therapy; Radiation: radiation therapy |
What is being measured
The primary outcome is the main question the study is designed to answer.
Local recurrence (e.g., invasive or noninvasive recurrence)
Measured: From randomization to date of local failure in the treated breast or last follow-up. Analysis occurs after all patients have been potentially followed for 5 years.
Secondary outcomes (4)
Overall survival
Measured: From randomization to date of death or last follow-up. Analysis occurs after all patients have been potentially followed for 5 years.
Time to distant metastasis
Measured: From randomization to date of distant metastasis or last follow-up. Analysis occurs after all patients have been potentially followed for 5 years.
Invasive local recurrence
Measured: From randomization to date of invasive local failure in the treated breast or last follow-up. Analysis occurs after all patients have been potentially followed for 5 years.
Salvage mastectomy rate
Measured: Analysis occurs after all patients have been potentially followed for 5 years.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Jan 2003 (estimated)
- Study startDec 1999
- Primary completionFeb 2004
- Study completion20 May 2022
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Breast CancerStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 636 participants (actual)
Sponsor and investigators
- Lead sponsor
- Radiation Therapy Oncology Group
- Sponsor type
- Research network
- Collaborators
- National Cancer Institute (NCI), Cancer and Leukemia Group B, NCIC Clinical Trials Group, NRG Oncology
- Responsible party
- Sponsor
- Investigators
- Beryl McCormick, MD, Study chair, Memorial Sloan Kettering Cancer CenterClifford A. Hudis, MD, Memorial Sloan Kettering Cancer CenterBarbara L. Smith, MD, PhD, Study chair, Massachusetts General HospitalTimothy J. Whelan, MD, Study chair, Margaret and Charles Juravinski Cancer CentreEileen Rakovitch, MD, Toronto Sunnybrook Regional Cancer Centre
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00003857
- Sponsor's protocol ID
- RTOG-9804
- Other IDs
- CDR0000067020, CAN-NCIC-MA26, CALGB-49801, NCI-2011-02038
- Status last verified
- May 2022
- First submitted
- 1 Nov 1999
- Last updated
- 25 May 2022
- Results posted
- No
- Data monitoring committee
- Yes
Publications
McCormick B, Winter K, Hudis C, Kuerer HM, Rakovitch E, Smith BL, Sneige N, Moughan J, Shah A, Germain I, Hartford AC, Rashtian A, Walker EM, Yuen A, Strom EA, Wilcox JL, Vallow LA, Small W Jr, Pu AT, Kerlin K, White J. RTOG 9804: a prospective randomized trial for good-risk ductal carcinoma in situ comparing radiotherapy with observation. J Clin Oncol. 2015 Mar 1;33(7):709-15. doi: 10.1200/JCO.2014.57.9029. Epub 2015 Jan 20.
PubMed 25605856McCormick B, Winter KA, Woodward W, Kuerer HM, Sneige N, Rakovitch E, Smith BL, Germain I, Hartford AC, O'Rourke MA, Walker EM, Strom EA, Hopkins JO, Pierce LJ, Pu AT, Sumida KNM, Vesprini D, Moughan J, White JR. Randomized Phase III Trial Evaluating Radiation Following Surgical Excision for Good-Risk Ductal Carcinoma In Situ: Long-Term Report From NRG Oncology/RTOG 9804. J Clin Oncol. 2021 Nov 10;39(32):3574-3582. doi: 10.1200/JCO.21.01083. Epub 2021 Aug 18.
PubMed 34406870
Study at a glance
From the registry record, last updated by the sponsor on 25 May 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Phase III Trial of Tamoxifen Alone vs. Tamoxifen Plus Radiation Therapy for Good Risk Duct Carcinoma In-Situ (DCIS) of the Female Breast
- ClinicalTrials.gov ID
- NCT00003857
- Acronym / sponsor ID
- RTOG-9804
- Conditions
- Breast Cancer
- Keywords
- breast cancer in situ, ductal breast carcinoma in situ
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 636 participants (actual)
- Lead sponsor
- Radiation Therapy Oncology GroupResearch network
- Collaborators
- National Cancer Institute (NCI), Cancer and Leukemia Group B, NCIC Clinical Trials Group, NRG Oncology
- Study start
- Dec 1999 (actual)
- Primary completion
- Feb 2004 (actual)
- Study completion
- 20 May 2022 (actual)
- First posted
- 27 Jan 2003 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
RATIONALE: Radiation therapy uses high-energy x-rays to damage tumor cells. Estrogen can stimulate the growth of breast cancer cells. Hormone therapy using tamoxifen may fight breast cancer by blocking the uptake of estrogen by the tumor cells. It is not yet known if radiation therapy is more effective than observation, with or without tamoxifen, in treating ductal carcinoma in situ.
PURPOSE: Randomized phase III trial to compare the effectiveness of radiation therapy with that of observation, with or without tamoxifen, in treating women who have ductal carcinoma in situ.
Detailed description
OBJECTIVES:
- Compare the efficacy of whole breast radiotherapy vs observation with or without optional tamoxifen in decreasing or delaying the appearance of local failure (both invasive and in situ) and preventing the need for mastectomy in women with good-risk ductal carcinoma in situ (DCIS) of the breast.
- Compare distant disease-free survival of patients treated with these regimens.
OUTLINE: This is a randomized, multicenter study. Patients are stratified according to age (under 50 vs 50 and over), final path margins (negative vs 3-9 mm vs at least 10 mm), mammographic size of primary (no greater than 1 cm vs greater than 1 cm to 2.5 cm), nuclei grade (low vs intermediate), and tamoxifen use (yes vs no). Patients are randomized to 1 of 2 treatment arms.
- Arm I: Patients undergo observation and may receive optional oral tamoxifen once daily (at the discretion of the physician) for 5 years.
- Arm II: Beginning within 12 weeks after final surgery, patients receive radiotherapy to the whole breast once daily, 5 days a week, for 3.5-5.5 weeks. Patients may receive optional tamoxifen as in arm I.
Patients are followed every 3 months for 1 year, every 6 months for 2 years, and then annually thereafter.
PROJECTED ACCRUAL: A total of 1,790 patients will be accrued for this study within 6 years.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Observation +/- tamoxifen for 5 years | Active comparator | Drug: tamoxifen citrate, Procedure: adjuvant therapyObservation +/- tamoxifen 20 mg per day for 5 years |
| Radiation therapy +/- tamoxifen for 5 years | Experimental | Drug: tamoxifen citrate, Procedure: adjuvant therapy, Radiation: radiation therapyRadiation therapy to the whole breast +/- tamoxifen 20 mg per day for 5 years |
Who may qualify
- Ages
- 26 to 120 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| tamoxifen citrate | Drug | Observation +/- tamoxifen for 5 years, Radiation therapy +/- tamoxifen for 5 years |
| adjuvant therapy | Procedure or surgery | Observation +/- tamoxifen for 5 years, Radiation therapy +/- tamoxifen for 5 years |
| radiation therapy | Radiation | Radiation therapy +/- tamoxifen for 5 years |
Primary outcome
Local recurrence (e.g., invasive or noninvasive recurrence)
Time frame: From randomization to date of local failure in the treated breast or last follow-up. Analysis occurs after all patients have been potentially followed for 5 years.
4 secondary outcomes
Overall survival
Time frame: From randomization to date of death or last follow-up. Analysis occurs after all patients have been potentially followed for 5 years.
Time to distant metastasis
Time frame: From randomization to date of distant metastasis or last follow-up. Analysis occurs after all patients have been potentially followed for 5 years.
Invasive local recurrence
Time frame: From randomization to date of invasive local failure in the treated breast or last follow-up. Analysis occurs after all patients have been potentially followed for 5 years.
Salvage mastectomy rate
Time frame: Analysis occurs after all patients have been potentially followed for 5 years.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 25 May 2022.
- Results publication: PubMed 25605856McCormick B, Winter K, Hudis C, Kuerer HM, Rakovitch E, Smith BL, Sneige N, Moughan J, Shah A, Germain I, Hartford AC, Rashtian A, Walker EM, Yuen A, Strom EA, Wilcox JL, Vallow LA, Small W Jr, Pu AT, Kerlin K, White J. RTOG 9804: a prospective randomized trial for good-risk ductal carcinoma in situ comparing radiotherapy with observation. J Clin Oncol. 2015 Mar 1;33(7):709-15. doi: 10.1200/JCO.2014.57.9029. Epub 2015 Jan 20.
- Derived from this study: PubMed 34406870McCormick B, Winter KA, Woodward W, Kuerer HM, Sneige N, Rakovitch E, Smith BL, Germain I, Hartford AC, O'Rourke MA, Walker EM, Strom EA, Hopkins JO, Pierce LJ, Pu AT, Sumida KNM, Vesprini D, Moughan J, White JR. Randomized Phase III Trial Evaluating Radiation Following Surgical Excision for Good-Risk Ductal Carcinoma In Situ: Long-Term Report From NRG Oncology/RTOG 9804. J Clin Oncol. 2021 Nov 10;39(32):3574-3582. doi: 10.1200/JCO.21.01083. Epub 2021 Aug 18.
- Data Available: Select individual patient-level data from this trial can be requested from the NCTN/NCORP Data Archive.Link provided by the sponsor.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Beryl McCormick, MD study chair
Memorial Sloan Kettering Cancer Center
Clifford A. Hudis, MD
Memorial Sloan Kettering Cancer Center
Barbara L. Smith, MD, PhD study chair
Massachusetts General Hospital
369 sites in 2 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing tamoxifen citrate, adjuvant therapy and radiation therapy in people with Breast Cancer, run by Radiation Therapy Oncology Group at 369 sites in 2 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 25 May 2022. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 369 sites in United States, Canada. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Local recurrence (e.g., invasive or noninvasive recurrence) (time frame: From randomization to date of local failure in the treated breast or last follow-up. Analysis occurs after all patients have been potentially followed for 5 years.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT00003857, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 May 2022.