Invasive Breast CarcinomaPhase 3NCT00601900
Tamoxifen Citrate or Letrozole With or Without Bevacizumab in Treating Women With Stage IIIB or Stage IV Breast Cancer
A Phase 3 study testing Bevacizumab, Laboratory Biomarker Analysis and Letrozole in people with Invasive Breast Carcinoma and Recurrent Breast Carcinoma, run by National Cancer Institute (NCI) at 522 sites in 2 countries.
Trial summary
This randomized phase III trial studies tamoxifen citrate or letrozole together with bevacizumab to see how well it works compared with tamoxifen citrate or letrozole alone in treating women with stage IIIB or stage IV breast cancer. Estrogen can cause the growth of breast cancer cells. Read more about this study
- Who is it for?
- Ages 18 years and older, women only
- Conditions the study is for
- Invasive Breast Carcinoma, Recurrent Breast Carcinoma, Stage III Breast Cancer AJCC v6
- What is being tested?
- Bevacizumab, Laboratory Biomarker Analysis and Letrozole
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 394 participants
- Where
- 522 sitesin 2 countries
- Study dates
- 24 Sep 2008to 29 Jan 2024
- Phase
- Phase 3
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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 18 years and older
- Women only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Histologic confirmation of invasive cancer of the female breast in either the primary or metastatic setting
- Stage IV disease or stage IIIB disease (using American Joint Committee on Cancer [AJCC] criteria, 6th edition) not amenable to local therapy
- Patients may not have a "currently active" second malignancy other than non-melanoma skin cancers; patients are not considered to have a "currently active" malignancy if they have completed therapy and are considered by their physician to be at less than 30% risk of relapse
- Tumors (from either primary or metastatic sites) must express estrogen receptor (ER) and/or progesterone receptor (PgR) in >= 1% of cells will be considered positive
- Postmenopausal women are eligible for this trial; before study registration, menopausal status must be defined according to the criteria below:
- Age >= 55 years and one year or more of amenorrhea
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- Age < 55 years and one year or more of amenorrhea, with an estradiol assay < 20 pg/ml
- For women age < 55 with prior hysterectomy but intact ovaries, with an estradiol assay < 20 pg/ml
- Surgical menopause with bilateral oophorectomy (at least 28 days must elapse from surgery to time of study registration)
- Ovarian suppression on a luteinizing hormone-releasing hormone (LH-RH) agonist
- Premenopausal women who do not meet the postmenopausal criteria above are also eligible, but are required to undergo ovarian suppression; this can be initiated any time prior to or on day 1 of protocol therapy, regardless of chosen endocrine therapy, and will continue for the duration of protocol therapy
- Patients must have measurable or non-measurable disease by RECIST criteria, with radiologic scans within 28 days of study registration
- Measurable disease: lesions that can be accurately measured in at least one dimension (longest diameter to be recorded) as >= 2.0 cm with conventional techniques or as >= 1.0 cm with spiral computed tomography (CT) scan
- Non-measurable disease: all other lesions, including small lesions (longest diameter < 2.0 cm with conventional techniques or < 1.0 cm with spiral CT scan) and truly non-measurable lesions
- Lesions that are considered non-measurable include the following:
- Bone lesions
- Leptomeningeal disease
- Ascites
- Pleural/pericardial effusion
- Inflammatory breast disease
- Abdominal masses that are not confirmed and followed by imaging techniques
- Cystic lesions
- Prior endocrine therapy is not required
- Prior endocrine therapy in the metastatic setting is not permitted (unless tamoxifen or an aromatase inhibitor was initiated within 4 weeks prior to registration to facilitate enrollment of patients who recently started first-line endocrine therapy for metastatic breast cancer); if prior letrozole therapy was initiated within the past 4 weeks, the patients should remain on letrozole as the study therapy; patients who began therapy with tamoxifen, anastrozole or exemestane must switch to letrozole to be eligible to participate in this study
- Prior endocrine therapy in the adjuvant setting is permitted; there is no time restriction for how long the patient must be on the adjuvant endocrine therapy, nor is there a time restriction for how long the patient needs to be off prior adjuvant endocrine therapy before beginning protocol therapy on 40503
- Prior treatment with ovarian suppression is allowed in either the adjuvant or metastatic setting; if medical ovarian suppression is being administered it can be initiated any time prior to or at the start of protocol therapy, and continued throughout the duration of the trial; surgical castration with bilateral oophorectomy must be performed at least 28 days prior to study registration (due to concerns of poor wound healing on bevacizumab)
- Patients may not have received any prior anti-VEGF or VEGFR tyrosine kinase inhibitor therapy
- Prior radiotherapy must have been completed and all toxicities resolved at least two weeks prior to registration
- Chemotherapy in the adjuvant or neoadjuvant setting is permitted; at least twelve months prior to registration must have elapsed since the completion of adjuvant or neoadjuvant chemotherapy and all toxicities must have resolved; taxane-related neurotoxicity must have resolved to sensory grade < 2 and no motor neuropathy of any grade is allowed
- Patients may have received one prior chemotherapy regimen for metastatic disease; the final dose of prior chemotherapy must have been administered at least 3 weeks prior to study registration
- Treatment with bisphosphonates is allowed and recommended as per American Society of Clinical Oncology (ASCO) guidelines
- Patients must not have had a major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to study registration, and must have fully recovered from any such procedure
- Patients must not have anticipation of need for major surgical procedure during the course of the study
- Patients must not have had a core biopsy or other minor surgical procedure, within 7 days prior to study registration; placement of a vascular access device is allowed within 7 days of registration
- Patients must not have a history of abdominal fistula, or intra-abdominal abscess within 6 months prior to study registration
- Patients with a history of gastrointestinal (GI) perforation within 12 months prior to registration are not eligible
- Patients with a history of significant bleeding episodes (e.g., hemoptysis, upper or lower GI bleeding) within 6 months prior to registration are not eligible
- Patients must not have clinically significant cardiovascular disease that includes the following:
- Uncontrolled hypertension defined as systolic blood pressure > 150 and/or diastolic blood pressure > 90 mmHg on antihypertensive medications or any prior history of hypertensive crisis or hypertensive encephalopathy
- History of myocardial infarction or unstable angina within past 6 months
- New York Heart Association (NYHA) grade 2 or greater congestive heart failure
- Symptomatic peripheral vascular disease
- Significant vascular disease (e.g., aortic aneurysm, aortic dissection) or arterial thrombotic events
- Full dose anticoagulation therapy is allowed for the treatment of prior conditions such as venous thrombosis or atrial fibrillation, but not for the treatment of prior arterial thrombotic events; patients on full dose anticoagulants must be on a stable dose of warfarin and have an in-range international normalized ratio (INR) (usually between 2 and 3) or be on a stable dose of low-molecular weight (LMW) heparin; patients receiving antiplatelet agents are eligible, as are patients on daily prophylactic aspirin or anticoagulation for atrial fibrillation
- Patients may not have a history of stroke or transient ischemic attack within 6 months prior to study registration
- Patients with a history of seizures must be well controlled with standard medication
- Patients must not have known central nervous system (CNS) metastases or leptomeningeal disease (screening with brain imaging is not required for asymptomatic patients)
- In aromatase inhibitor (AI)-treated patients: no known allergies to imidazole drugs, (e.g. clotrimazole, ketoconazole, miconazole, econazole, sulconazole, tioconazole, or terconazole) or compounds structurally similar to bevacizumab
- In tamoxifen treated patients: no known allergies to selective estrogen receptor modulators (e.g. tamoxifen, raloxifene or toremifene) or compounds structurally similar to bevacizumab; for patients enrolled after Update #5, endocrine therapy will consist of letrozole only and this criterion will no longer apply
- Eastern Cooperative Oncology Group (ECOG) (Zubrod) performance status =< 1
- No serious, non-healing wound, ulcer, or bone fracture
- Life expectancy of >= 12 weeks
- All patients who are premenopausal (if not already receiving ovarian suppression therapy/surgical oophorectomy) must have a negative beta-human chorionic gonadotropin (beta-Hcg) prior to starting on study treatment; patients may not be pregnant or nursing at any time during the study; ovarian suppression is required in women of childbearing potential by the start of protocol therapy, and will continue for the duration of protocol therapy
- Granulocytes >= 1,000/ul
- Platelet count >= 100,000/ul
- Creatinine =< 2.0 mg/dL
- Bilirubin =< 1.5 times upper limit of normal (ULN) unless due to Gilbert's syndrome
- Transaminases (alanine aminotransferase [ALT], aspartate aminotransferase [AST]) =< 2.5 times ULN
- International normalized ratio (INR) =< 1.6, unless on full dose warfarin
- Beta-Hcg negative in premenopausal women
- Urine protein =< 1+ or urine to plasma creatinine (UPC) < 1
- Patients discovered to have >= 2+ proteinuria at baseline must undergo a 24-hour urine collection that must demonstrate < 1 g of protein/24 hr, or UPC ratio < 1 to allow participation in the study
Who cannot join
None listed.
Trial locations and contacts
522 sites in 2 countries.
301 sites in 2 countries
United States300 sites
Pali Momi Medical Center
‘Aiea, Hawaii, 96701
Avera Cancer Institute-Aberdeen
Aberdeen, South Dakota, 57401
Jefferson Abington Hospital
Abington, Pennsylvania, 19001
Medini, Eitan MD (UIA Investigator)
Alexandria, Minnesota, 56308
Lehigh Valley Hospital-Cedar Crest
Allentown, Pennsylvania, 18103
OSF Saint Anthony's Health Center
Alton, Illinois, 62002
McFarland Clinic - Ames
Ames, Iowa, 50010
AnMed Health Cancer Center
Anderson, South Carolina, 29621
AnMed Health Hospital
Anderson, South Carolina, 29621
Michigan Cancer Research Consortium NCORP
Ann Arbor, Michigan, 48106
Trinity Health Saint Joseph Mercy Hospital Ann Arbor
Ann Arbor, Michigan, 48106
Langlade Hospital and Cancer Center
Antigo, Wisconsin, 54409
East Bay Medical Oncology Hematology Medical Associates-Antioch
Antioch, California, 94531
Randolph Hospital
Asheboro, North Carolina, 27203
Our Lady Bellefonte Hospital
Ashland, Kentucky, 41101
University Cancer and Blood Center LLC
Athens, Georgia, 30607
Piedmont Hospital
Atlanta, Georgia, 30309
Atlanta Regional CCOP
Atlanta, Georgia, 30342
Emory Saint Joseph's Hospital
Atlanta, Georgia, 30342
Northside Hospital
Atlanta, Georgia, 30342
Augusta University Medical Center
Augusta, Georgia, 30912
Harold Alfond Center for Cancer Care
Augusta, Maine, 04330
The Medical Center of Aurora
Aurora, Colorado, 80012
Rush - Copley Medical Center
Aurora, Illinois, 60504
WellStar Cobb Hospital
Austell, Georgia, 30106
University of Maryland/Greenebaum Cancer Center
Baltimore, Maryland, 21201
Veterans Administration Medical Center-Baltimore
Baltimore, Maryland, 21201
Greater Baltimore Medical Center
Baltimore, Maryland, 21204
Sinai Hospital of Baltimore
Baltimore, Maryland, 21215
Eastern Maine Medical Center
Bangor, Maine, 04401
Hematology/Oncology Clinic PLLC
Baton Rouge, Louisiana, 70809
Mary Bird Perkins Cancer Center
Baton Rouge, Louisiana, 70809
Ochsner Health Center-Summa
Baton Rouge, Louisiana, 70809
Bronson Battle Creek
Battle Creek, Michigan, 49017
McLaren Cancer Institute-Bay City
Bay City, Michigan, 48706
Franciscan Saint Francis Health-Beech Grove
Beech Grove, Indiana, 46107
Mary Rutan Hospital
Bellefontaine, Ohio, 43311
Saint Charles Health System
Bend, Oregon, 97701
Alta Bates Summit Medical Center-Herrick Campus
Berkeley, California, 94704
Constantinou, Costas L MD (UIA Investigator)
Bettendorf, Iowa, 52722
University of Iowa Healthcare Cancer Services Quad Cities
Bettendorf, Iowa, 52722
Spectrum Health Big Rapids Hospital
Big Rapids, Michigan, 49307
Billings Clinic Cancer Center
Billings, Montana, 59101
Northern Rockies Radiation Oncology Center
Billings, Montana, 59101
Saint Vincent Healthcare
Billings, Montana, 59101
Montana Cancer Consortium NCORP
Billings, Montana, 59102
Saint Vincent Frontier Cancer Center
Billings, Montana, 59102
Mid Dakota Clinic
Bismarck, North Dakota, 58501
Saint Alexius Medical Center
Bismarck, North Dakota, 58501
Sanford Bismarck Medical Center
Bismarck, North Dakota, 58501
OSF Saint Joseph Medical Center
Bloomington, Illinois, 61701
Illinois CancerCare-Bloomington
Bloomington, Illinois, 61704
Boca Raton Regional Hospital
Boca Raton, Florida, 33486
Central Care Cancer Center - Bolivar
Bolivar, Missouri, 65613
Brigham and Women's Hospital
Boston, Massachusetts, 02115
Beth Israel Deaconess Medical Center
Boston, Massachusetts, 02215
Dana-Farber Cancer Institute
Boston, Massachusetts, 02215
Boulder Community Hospital
Boulder, Colorado, 80301
Bozeman Health Deaconess Hospital
Bozeman, Montana, 59715
Cox Cancer Center Branson
Branson, Missouri, 65616
Bryn Mawr Hospital
Bryn Mawr, Pennsylvania, 19010
Providence Saint Joseph Medical Center/Disney Family Cancer Center
Burbank, California, 91505
Mills-Peninsula Medical Center
Burlingame, California, 94010
Aurora Cancer Care-Southern Lakes VLCC
Burlington, Wisconsin, 53105
Saint James Community Hospital and Cancer Treatment Center
Butte, Montana, 59701
Cooper Hospital University Medical Center
Camden, New Jersey, 08103
Graham Hospital Association
Canton, Illinois, 61520
Illinois CancerCare-Canton
Canton, Illinois, 61520
Aultman Health Foundation
Canton, Ohio, 44710
Southeast Missouri Hospital
Cape Girardeau, Missouri, 63701
Mercy Cancer Center - Cape Girardeau
Cape Girardeau, Missouri, 63703
Saint Francis Medical Center
Cape Girardeau, Missouri, 63703
Illinois CancerCare-Carthage
Carthage, Illinois, 62321
Memorial Hospital
Carthage, Illinois, 62321
Rocky Mountain Oncology
Casper, Wyoming, 82609
East Bay Radiation Oncology Center
Castro Valley, California, 94546
Eden Hospital Medical Center
Castro Valley, California, 94546
Valley Medical Oncology Consultants-Castro Valley
Castro Valley, California, 94546
Providence Regional Cancer System-Centralia
Centralia, Washington, 98531
UNC Lineberger Comprehensive Cancer Center
Chapel Hill, North Carolina, 27599
West Virginia University Charleston Division
Charleston, West Virginia, 25304
Carolinas Medical Center/Levine Cancer Institute
Charlotte, North Carolina, 28203
Sentara Martha Jefferson Hospital
Charlottesville, Virginia, 22901
Erlanger Medical Center
Chattanooga, Tennessee, 37403
Mount Sinai Hospital Medical Center
Chicago, Illinois, 60608
John H Stroger Jr Hospital of Cook County
Chicago, Illinois, 60612
Mercy Hospital and Medical Center
Chicago, Illinois, 60616
Presence Resurrection Medical Center
Chicago, Illinois, 60631
University of Chicago Comprehensive Cancer Center
Chicago, Illinois, 60637
Advocate Illinois Masonic Medical Center
Chicago, Illinois, 60657
Adventist Health Cancer Care Center Chico
Chico, California, 95973
Adena Regional Medical Center
Chillicothe, Ohio, 45601
Marshfield Clinic-Chippewa Center
Chippewa Falls, Wisconsin, 54729
Clackamas Radiation Oncology Center
Clackamas, Oregon, 97015
MetroHealth Medical Center
Cleveland, Ohio, 44109
UI Health Care Mission Cancer and Blood - West Des Moines Clinic
Clive, Iowa, 50325
Community Cancer Institute
Clovis, California, 93611
Penrose-Saint Francis Healthcare
Colorado Springs, Colorado, 80907
MU Health - University Hospital/Ellis Fischel Cancer Center
Columbia, Missouri, 65212
John B Amos Cancer Center
Columbus, Georgia, 31904
Ohio State University Comprehensive Cancer Center
Columbus, Ohio, 43210
Riverside Methodist Hospital
Columbus, Ohio, 43214
Columbus NCI Community Oncology Research Program
Columbus, Ohio, 43215
Grant Medical Center
Columbus, Ohio, 43215
Mount Carmel Health Center West
Columbus, Ohio, 43222
Doctors Hospital
Columbus, Ohio, 43228
New Hampshire Oncology Hematology PA-Concord
Concord, New Hampshire, 03301
Ochsner Health Center-Covington
Covington, Louisiana, 70433
Hematology and Oncology Associates of Rhode Island Inc
Cranston, Rhode Island, 02920
Danville Regional Medical Center
Danville, Virginia, 24541
Grandview Hospital
Dayton, Ohio, 45405
Good Samaritan Hospital - Dayton
Dayton, Ohio, 45406
Miami Valley Hospital
Dayton, Ohio, 45409
Miami Valley Hospital North
Dayton, Ohio, 45415
Dayton Veterans Affairs Medical Center
Dayton, Ohio, 45428
Corewell Health Dearborn Hospital
Dearborn, Michigan, 48124
Emory Decatur Hospital
Decatur, Georgia, 30033
Decatur Memorial Hospital
Decatur, Illinois, 62526
Heartland Cancer Research NCORP
Decatur, Illinois, 62526
Grady Memorial Hospital
Delaware, Ohio, 43015
AdventHealth Porter
Denver, Colorado, 80210
Presbyterian - Saint Lukes Medical Center - Health One
Denver, Colorado, 80218
Saint Joseph Hospital - Cancer Centers of Colorado
Denver, Colorado, 80218
Rose Medical Center
Denver, Colorado, 80220
Western States Cancer Research NCORP
Denver, Colorado, 80222
Mercy Capitol
Des Moines, Iowa, 50307
Iowa Methodist Medical Center
Des Moines, Iowa, 50309
Iowa-Wide Oncology Research Coalition NCORP
Des Moines, Iowa, 50309
UI Health Care Mission Cancer and Blood - Des Moines Clinic
Des Moines, Iowa, 50309
Mercy Medical Center - Des Moines
Des Moines, Iowa, 50314
UI Health Care Mission Cancer and Blood - Laurel Clinic
Des Moines, Iowa, 50314
Iowa Lutheran Hospital
Des Moines, Iowa, 50316
Wayne State University/Karmanos Cancer Institute
Detroit, Michigan, 48201
Henry Ford Health Saint John Hospital
Detroit, Michigan, 48236
Advocate Good Samaritan Hospital
Downers Grove, Illinois, 60515
Doylestown Hospital
Doylestown, Pennsylvania, 18901
Dublin Hematology Oncology Care PC
Dublin, Georgia, 31021
Essentia Health Cancer Center
Duluth, Minnesota, 55805
Essentia Health Saint Mary's Medical Center
Duluth, Minnesota, 55805
Miller-Dwan Hospital
Duluth, Minnesota, 55805
Michigan State University Clinical Center
East Lansing, Michigan, 48824
Hematology Oncology Associates of Central New York-East Syracuse
East Syracuse, New York, 13057
Marshfield Clinic Cancer Center at Sacred Heart
Eau Claire, Wisconsin, 54701
Ascension Alexian Brothers - Elk Grove Village
Elk Grove Village, Illinois, 60007
Elkhart Clinic
Elkhart, Indiana, 46514-2098
Michiana Hematology Oncology PC-Elkhart
Elkhart, Indiana, 46514
Elkhart General Hospital
Elkhart, Indiana, 46515
Christiana Care - Union Hospital
Elkton, Maryland, 21921
Elmhurst Memorial Hospital
Elmhurst, Illinois, 60126
Elmhurst Hospital Center
Elmhurst, New York, 11373
Arnot Ogden Medical Center/Falck Cancer Center
Elmira, New York, 14905
Bay Area Breast Surgeons Inc
Emeryville, California, 94608
Swedish Medical Center
Englewood, Colorado, 80113
OSF Saint Francis Hospital and Medical Group
Escanaba, Michigan, 49829
Eureka Hospital
Eureka, Illinois, 61530
Illinois CancerCare-Eureka
Eureka, Illinois, 61530
Kaiser Permanente - Fair Oaks Medical Center
Fairfax, Virginia, 22033
Piedmont Fayette Hospital
Fayetteville, Georgia, 30214
Saint Francis Hospital
Federal Way, Washington, 98003
Etzell, Paul S MD (UIA Investigator)
Fergus Falls, Minnesota, 56537
Swenson, Wade II, MD (UIA Investigator)
Fergus Falls, Minnesota, 56537
Blanchard Valley Hospital
Findlay, Ohio, 45840
Hurley Medical Center
Flint, Michigan, 48503
Genesys Regional Medical Center-West Flint Campus
Flint, Michigan, 48532
McLaren Cancer Institute-Flint
Flint, Michigan, 48532
McLeod Regional Medical Center
Florence, South Carolina, 29506
Poudre Valley Hospital
Fort Collins, Colorado, 80524
Eisenhower Army Medical Center
Fort Eisenhower, Georgia, 30905
Holy Cross Hospital
Fort Lauderdale, Florida, 33308
Sparks Regional Medical Center
Fort Smith, Arkansas, 72901
Fort Wayne Medical Oncology and Hematology Inc-Parkview
Fort Wayne, Indiana, 46845
Atrium Medical Center-Middletown Regional Hospital
Franklin, Ohio, 45005-1066
Aurora Cancer Care-Franklin
Franklin, Wisconsin, 53132
Frederick Memorial Hospital
Frederick, Maryland, 21701
CentraState Medical Center
Freehold, New Jersey, 07728
Freeport Memorial Hospital/Leonard C Ferguson Cancer Center
Freeport, Illinois, 61032
Valley Medical Oncology Consultants-Fremont
Fremont, California, 94538
Florida Cancer Specialists-Gainesville Cancer Center
Gainesville, Florida, 32605
Northeast Georgia Medical Center-Gainesville
Gainesville, Georgia, 30501
Illinois CancerCare-Galesburg
Galesburg, Illinois, 61401
Aurora Health Care Germantown Health Center
Germantown, Wisconsin, 53022
Aurora Cancer Care-Glendale
Glendale, Wisconsin, 53212
Adirondack Cancer Center
Glens Falls, New York, 12801
Addison Gilbert Hospital
Gloucester, Massachusetts, 01930
Wayne Memorial Hospital
Goldsboro, North Carolina, 27534
Altru Cancer Center
Grand Forks, North Dakota, 58201
Nebraska Cancer Specialists/Oncology Hematology West PC
Grand Island, Nebraska, 68803
Saint Mary's Hospital and Regional Medical Center
Grand Junction, Colorado, 81501
Cancer Research Consortium of West Michigan NCORP
Grand Rapids, Michigan, 49503
Corewell Health Grand Rapids Hospitals - Butterworth Hospital
Grand Rapids, Michigan, 49503
Trinity Health Grand Rapids Hospital
Grand Rapids, Michigan, 49503
Benefis Sletten Cancer Institute
Great Falls, Montana, 59405
Berdeaux, Donald MD (UIA Investigator)
Great Falls, Montana, 59405
Great Falls Clinic
Great Falls, Montana, 59405
Banner North Colorado Medical Center
Greeley, Colorado, 80631
Green Bay Oncology at Saint Vincent Hospital
Green Bay, Wisconsin, 54301-3526
Bellin Memorial Hospital
Green Bay, Wisconsin, 54301
Saint Vincent Hospital Cancer Center Green Bay
Green Bay, Wisconsin, 54301
Saint Vincent Hospital Cancer Center at Saint Mary's
Green Bay, Wisconsin, 54303
Aurora BayCare Medical Center
Green Bay, Wisconsin, 54311
Marin General Hospital
Greenbrae, California, 94904
Cone Health Cancer Center
Greensboro, North Carolina, 27403
Wayne Hospital
Greenville, Ohio, 45331
Saint Francis Hospital
Greenville, South Carolina, 29601
Legacy Mount Hood Medical Center
Gresham, Oregon, 97030
Hackensack University Medical Center
Hackensack, New Jersey, 07601
Meritus Medical Center
Hagerstown, Maryland, 21742
Hartford Hospital
Hartford, Connecticut, 06102
Smilow Cancer Hospital Care Center at Saint Francis
Hartford, Connecticut, 06105
Ingalls Memorial Hospital
Harvey, Illinois, 60426
Illinois CancerCare-Havana
Havana, Illinois, 62644
Mason District Hospital
Havana, Illinois, 62644
Northern Montana Hospital
Havre, Montana, 59501
HaysMed
Hays, Kansas, 67601
Saint Peter's Community Hospital
Helena, Montana, 59601
Hawaii Cancer Care Inc - Waterfront Plaza
Honolulu, Hawaii, 96813
Queen's Medical Center
Honolulu, Hawaii, 96813
Straub Clinic and Hospital
Honolulu, Hawaii, 96813
University of Hawaii Cancer Center
Honolulu, Hawaii, 96813
Queen's Cancer Center - Kuakini
Honolulu, Hawaii, 96817
The Cancer Center of Hawaii-Liliha
Honolulu, Hawaii, 96817
Kapiolani Medical Center for Women and Children
Honolulu, Hawaii, 96826
Hutchinson Regional Medical Center
Hutchinson, Kansas, 67502
Cape Cod Hospital
Hyannis, Massachusetts, 02601
Ascension Saint Vincent Indianapolis Hospital
Indianapolis, Indiana, 46260
University of Iowa/Holden Comprehensive Cancer Center
Iowa City, Iowa, 52242
Allegiance Health
Jackson, Michigan, 49201
University of Mississippi Medical Center
Jackson, Mississippi, 39216
Queens Hospital Center
Jamaica, New York, 11432
Mercyhealth Hospital and Cancer Center - Janesville
Janesville, Wisconsin, 53548
MU Health Care Goldschmidt Cancer Center
Jefferson City, Missouri, 65109
Duly Health and Care Joliet
Joliet, Illinois, 60435
Freeman Health System
Joplin, Missouri, 64804
Jupiter Medical Center
Jupiter, Florida, 33458
Bronson Methodist Hospital
Kalamazoo, Michigan, 49007
West Michigan Cancer Center
Kalamazoo, Michigan, 49007
Ascension Borgess Hospital
Kalamazoo, Michigan, 49048
Glacier Oncology PLLC
Kalispell, Montana, 59901
Kalispell Medical Oncology
Kalispell, Montana, 59901
Logan Health Medical Center
Kalispell, Montana, 59901
Presence Saint Mary's Hospital
Kankakee, Illinois, 60901
University of Kansas Cancer Center
Kansas City, Kansas, 66160
University Health Truman Medical Center
Kansas City, Missouri, 64108
Cheshire Medical Center-Dartmouth-Hitchcock Keene
Keene, New Hampshire, 03431
Aurora Cancer Care-Kenosha South
Kenosha, Wisconsin, 53142
Kettering Medical Center
Kettering, Ohio, 45429
Illinois CancerCare-Kewanee Clinic
Kewanee, Illinois, 61443
ECU Health Oncology Kinston
Kinston, North Carolina, 28501
Community Howard Regional Health
Kokomo, Indiana, 46904
Gundersen Lutheran Medical Center
La Crosse, Wisconsin, 54601
AMITA Health Adventist Medical Center
La Grange, Illinois, 60525
IU Health La Porte Hospital
La Porte, Indiana, 46350
LRGHealthcare-Lakes Region General Hospital
Laconia, New Hampshire, 03246
IU Health Arnett Cancer Care
Lafayette, Indiana, 47904
Saint Anthony Hospital
Lakewood, Colorado, 80228
Saint Clare Hospital
Lakewood, Washington, 98499
Fairfield Medical Center
Lancaster, Ohio, 43130
Karmanos Cancer Institute at McLaren Greater Lansing
Lansing, Michigan, 48910
University of Michigan Health - Sparrow Lansing
Lansing, Michigan, 48912
Doctor's Hospital of Laredo
Laredo, Texas, 78041
Kaiser Permanente - Largo Medical Center
Largo, Maryland, 20774
Northside Hospital - Gwinnett
Lawrenceville, Georgia, 30046
Dartmouth Hitchcock Medical Center/Dartmouth Cancer Center
Lebanon, New Hampshire, 03756
Beebe Medical Center
Lewes, Delaware, 19958
Saint Rita's Medical Center
Lima, Ohio, 45801
Nebraska Cancer Research Center
Lincoln, Nebraska, 68510
AdventHealth Littleton
Littleton, Colorado, 80122
Trinity Health Saint Mary Mercy Livonia Hospital
Livonia, Michigan, 48154
Sky Ridge Medical Center
Lone Tree, Colorado, 80124
Longmont United Hospital
Longmont, Colorado, 80501
Los Angeles General Medical Center
Los Angeles, California, 90033
USC / Norris Comprehensive Cancer Center
Los Angeles, California, 90033
Doctors Carrol, Sheth, Raghavan
Louisville, Kentucky, 40215
Banner McKee Medical Center
Loveland, Colorado, 80539
Lowell General Hospital
Lowell, Massachusetts, 01854
Kaiser Permanente Lutherville - Timonium Medical Center
Lutherville, Maryland, 21093
Illinois CancerCare-Macomb
Macomb, Illinois, 61455
Mcdonough District Hospital
Macomb, Illinois, 61455
Atrium Health Navicent
Macon, Georgia, 31201
SSM Health Dean Medical Group - South Madison Campus
Madison, Wisconsin, 53715
Solinsky Center for Cancer Care
Manchester, New Hampshire, 03103
Holy Family Memorial Hospital
Manitowoc, Wisconsin, 54221
Mayo Clinic Health Systems-Mankato
Mankato, Minnesota, 56001
Wellstar Kennestone Hospital
Marietta, Georgia, 30060
Marietta Memorial Hospital
Marietta, Ohio, 45750
Aurora Bay Area Medical Group-Marinette
Marinette, Wisconsin, 54143
Bay Area Medical Center
Marinette, Wisconsin, 54143
UP Health System Marquette
Marquette, Michigan, 49855
Marshfield Medical Center-Marshfield
Marshfield, Wisconsin, 54449
Marshfield Medical Center
Marshfield, Wisconsin, 54449
Contra Costa Regional Medical Center
Martinez, California, 94553-3156
Fremont - Rideout Cancer Center
Marysville, California, 95901
Holy Family Hospital
Methuen, Massachusetts, 01844
Mount Sinai Medical Center
Miami Beach, Florida, 33140
Franciscan Saint Anthony Health-Michigan City
Michigan City, Indiana, 46360
Middlesex Hospital
Middletown, Connecticut, 06457
MyMichigan Medical Center Midland
Midland, Michigan, 48670
Dana-Farber/Brigham and Women's Cancer Center at Milford Regional
Milford, Massachusetts, 01757
Aurora Saint Luke's Medical Center
Milwaukee, Wisconsin, 53215
Medical College of Wisconsin
Milwaukee, Wisconsin, 53226
About this study
Official title: Endocrine Therapy With or Without Anti-VEGF Therapy: A Randomized, Phase III Trial of Endocrine Therapy Alone or Endocrine Therapy Plus Bevacizumab (NSC 704865) for Women With Hormone Receptor-Positive Advanced Breast Cancer
This randomized phase III trial studies tamoxifen citrate or letrozole together with bevacizumab to see how well it works compared with tamoxifen citrate or letrozole alone in treating women with stage IIIB or stage IV breast cancer. Estrogen can cause the growth of breast cancer cells. Hormone therapy using tamoxifen citrate or letrozole may fight breast cancer by blocking the use of estrogen by the tumor cells. Immunotherapy with monoclonal antibodies, such as bevacizumab, may induce changes in the body's immune system and may interfere with the ability of tumor cells to grow and spread. It is not yet known whether giving hormone therapy is more effective with or without bevacizumab in treating advanced breast cancer.
Read the detailed description
PRIMARY OBJECTIVES:
- To compare the progression-free survival of letrozole therapy alone with the combination of letrozole therapy plus bevacizumab as first-line treatment in women with estrogen- and/or progesterone-receptor-positive advanced breast cancer.
SECONDARY OBJECTIVES:
- To compare the proportion of patients receiving letrozole alone, who remain progression-free at 6 and 12 months, to those receiving letrozole plus bevacizumab.
II. To compare the incidence of objective response (complete response [CR] + partial response [PR]) in patients receiving letrozole with and without bevacizumab, as determined by Response Evaluation Criteria in Solid Tumors (RECIST) criteria, excluding patients with non-measurable disease.
III. To compare the incidence of clinical benefit (CR + PR + stable disease >= 6 months) in patients receiving letrozole with and without bevacizumab.
IV. To compare the duration of objective response in patients receiving letrozole with and without bevacizumab.
- To compare the time to treatment failure in patients receiving letrozole with and without bevacizumab.
VI. To compare the overall survival of patients receiving letrozole with and without bevacizumab, including the probability of survival until 36 months.
VII. To compare toxicity levels between the bevacizumab arm and the arm without bevacizumab in both the letrozole-treated patients and in the tamoxifen-treated patients.
VIII. To compare progression-free survival and overall survival of all patients receiving endocrine therapy with and without bevacizumab (by combining both letrozole and tamoxifen* patient subgroups).
CORRELATIVE OBJECTIVES:
- To compare baseline and changes in serial levels of circulating endothelial cells and circulating tumor cells in patients treated with endocrine therapy alone or endocrine therapy plus bevacizumab, and to explore the relationship of these markers with progression free survival.
II. To conduct proteomic analysis of longitudinal samples from patients with advanced-stage disease undergoing hormonal therapy to define new serum-based biomarkers related to disease activity.
III. To identify biologic correlates that will predict progression-free survival (PFS) and response to therapy.
IV. To conduct pharmacogenomic assessment of candidate variants in the VEGF, CYP2D6, and CYP19 genes and evaluate their association with PFS and other study outcomes.
- To identify single nucleotide polymorphisms (SNPs) associated with progression free survival in the genome-wide approach (GWAS).
VI. To identify factors other than chronological age that predict the risk of grade 3, 4 or 5 toxicity with bevacizumab and endocrine therapy by means of functional age assessment measures.
VII. To perform an exploratory analysis of the ability of the other factors included in the functional age assessment (either individual or in combination), to predict the risk of grade 3, 4 or 5 toxicity.
VIII. To evaluate longitudinal changes in the parameters of the factors described in objective VI while on therapy.
OUTLINE: Patients are randomized to 1 of 2 treatment arms.
NOTE: The placebo-controlled portion of the study was canceled on 5-15-10.
ARM I: Patients receive endocrine therapy* (tamoxifen citrate or letrozole) orally (PO) once daily (QD) on days 1-21 and bevacizumab intravenously (IV) over 30-90 minutes on day 1. Treatment repeats every 21 days in the absence of disease progression or unacceptable toxicity.
ARM II: Patients receive endocrine therapy* (tamoxifen citrate or letrozole) PO QD on days 1-21. Treatment repeats every 21 days in the absence of disease progression or unacceptable toxicity.
After completion of study therapy, patients are followed up every 6 months for the first 2 years and then annually for up to 3 years.
- NOTE: As of 5/15/2011, patients only receive letrozole.
- Conditions
- Invasive Breast Carcinoma, Recurrent Breast Carcinoma, Stage III Breast Cancer AJCC v6, Stage IV Breast Cancer AJCC v6 and v7
- Being tested
- Bevacizumab, Laboratory Biomarker Analysis, Letrozole, Questionnaire Administration, Tamoxifen Citrate
- Medical subject headings
- Breast Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
BevacizumabBiological
Also called ABP 215, ABP-215, ABP215, Alymsys
Given IV
Laboratory Biomarker AnalysisOther
Correlative studies
LetrozoleDrug
Also called CGS 20267, CGS-20267, CGS20267, Femara
Given PO
Questionnaire AdministrationOther
Ancillary studies
Tamoxifen CitrateDrug
Also called Apo-Tamox, Clonoxifen, Dignotamoxi, Ebefen
Given PO
| Study group | Role | What they receive |
|---|---|---|
| Arm I (endocrine therapy with monoclonal antibody) | Experimental | Patients receive endocrine therapy* (tamoxifen citrate* or letrozole) PO QD on days 1-21 and bevacizumab 15 mg/kg IV over 30-90 minutes on day 1. Treatment repeats every 21 days in the absence of disease progression or unacceptable toxicity. Receives: Biological: Bevacizumab; Other: Laboratory Biomarker Analysis; Drug: Letrozole; Other: Questionnaire Administration; Drug: Tamoxifen Citrate |
| Arm II (endocrine therapy) | Active comparator | Patients receive endocrine therapy* (tamoxifen citrate* or letrozole) PO QD on days 1-21. Treatment repeats every 21 days in the absence of disease progression or unacceptable toxicity. Receives: Other: Laboratory Biomarker Analysis; Drug: Letrozole; Other: Questionnaire Administration; Drug: Tamoxifen Citrate |
What is being measured
The primary outcome is the main question the study is designed to answer.
Progression-free Survival
The Primary Endpoint for this study was to compare the progression-free survival of letrozole therapy alone with the combination of letrozole therapy plus bevacizumab as first-line treatment in women with estrogen- and/or progesterone-receptor-positive advanced breast cancer. Progression-free survival (PFS) was defined as the time from randomization until disease progression or death, whichever occurs first. The median PFS was estimated using the Kaplan-Meier method. Progression was assessed per RECIST criteria, and defined as at least a 20% increase in the sum of the longest diameters of target lesions from baseline or the appearance of new lesions.
Measured: From randomization until disease progression or death whichever occurs first, assessed up to 5 years
Secondary outcomes (9)
12 Month Progression Free Survival Rate
The 12 month progression-free survival rate was defined as the proportion of patients who were alive progression-free 12 months after registration into the study.
Measured: At 12 months
6 Month Progression-Free Survival Rate
The 6 month progression-free survival rate was defined as the proportion of patients who were alive progression-free 6 months after registration into the study.
Measured: At 6 months
Objective Response Rate
Response was defined using RECIST criteria: Complete Response (CR): disappearance of all target lesions; Partial Response (PR) 30% decrease in sum of longest diameter of target lesions.
Measured: Assessed up to 5 years
Overall Survival (OS)
OS is defined as the time from study entry to death from any cause. The median OS was estimated using the Kaplan-Meier method.
Measured: Assessed up to 5 years
Duration of Tumor Response
Defined as the time from PR or CR, whichever comes first and by RECIST criteria, to progression or death.
Measured: 5 years
Overall Survival (OS) at 36 Months
Proportion of patients surviving until 36 months
Measured: 36 months
Clinical Benefit Rate (CBR)
To compare the rate of clinical benefit (CR + PR + stable disease ≥ 6 months) in patients receiving letrozole with and without bevacizumab.
Measured: 5 years
Time-to-treatment Failure
From randomization until first disease progression, early termination of protocol therapy due to toxicity or withdrawn consent, or going onto non-protocol therapy. Defined by RECIST criteria. The proportional hazards model will be used to compare the arms on time-to-treatment-failure
Measured: 5 years
Grade 3 or Higher Treatment Related Toxicity
Graded using the National Cancer Institute Common Terminology Criteria for Adverse Events version 4.0. Events occuring in 5 percent or more of evaluable patients will be tabulated.
Measured: 5 years
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 Jan 2008 (estimated)
- Study start24 Sep 2008
- Primary completion30 Jun 2014
- Study completion29 Jan 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (4)Papers the sponsor has linked to this study.
- Other trials for Invasive Breast CarcinomaStudies of the same condition, open and under way.
- More trials run by National Cancer Institute (NCI)The sponsor's other registered studies.
- 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
- 394 participants (actual)
Sponsor and investigators
- Lead sponsor
- National Cancer Institute (NCI)
- Sponsor type
- US National Institutes of Health
- Responsible party
- Sponsor
- Investigators
- Hope S Rugo, Principal investigator, Alliance for Clinical Trials in Oncology
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00601900
- Sponsor's protocol ID
- NCI-2009-00477
- Other IDs
- NCI-2009-00477, CALGB-40503, CDR0000584091, CALGB 40503/CTSU 40503, CALGB-40503, CALGB-40503, U10CA180821, U10CA031946
- Status last verified
- Aug 2026
- First submitted
- 18 Jan 2008
- Last updated
- 28 Aug 2026
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Publications
Quintanilha JCF, Wang J, Sibley AB, Jiang C, Etheridge AS, Shen F, Jiang G, Mulkey F, Patel JN, Hertz DL, Dees EC, McLeod HL, Bertagnolli M, Rugo H, Kindler HL, Kelly WK, Ratain MJ, Kroetz DL, Owzar K, Schneider BP, Lin D, Innocenti F. Bevacizumab-induced hypertension and proteinuria: a genome-wide study of more than 1000 patients. Br J Cancer. 2022 Feb;126(2):265-274. doi: 10.1038/s41416-021-01557-w. Epub 2021 Oct 6.
PubMed 34616010Martin M, Loibl S, Hyslop T, De la Haba-Rodriguez J, Aktas B, Cirrincione CT, Mehta K, Barry WT, Morales S, Carey LA, Garcia-Saenz JA, Partridge A, Martinez-Janez N, Hahn O, Winer E, Guerrero-Zotano A, Hudis C, Casas M, Rodriguez-Martin C, Furlanetto J, Carrasco E, Dickler MN; GEICAM Spanish Breast Cancer Group; GBG (German Breast Group); Alliance for Clinical Trials in Oncology (Alliance). Evaluating the addition of bevacizumab to endocrine therapy as first-line treatment for hormone receptor-positive metastatic breast cancer: a pooled analysis from the LEA (GEICAM/2006-11_GBG51) and CALGB 40503 (Alliance) trials. Eur J Cancer. 2019 Aug;117:91-98. doi: 10.1016/j.ejca.2019.06.002. Epub 2019 Jul 2.
PubMed 31276981Li D, McCall LM, Hahn OM, Hudis CA, Cohen HJ, Muss HB, Jatoi A, Lafky JM, Ballman KV, Winer EP, Tripathy D, Schneider B, Barry W, Dickler MN, Hurria A. Identification of risk factors for toxicity in patients with hormone receptor-positive advanced breast cancer treated with bevacizumab plus letrozole: a CALGB 40503 (alliance) correlative study. Breast Cancer Res Treat. 2018 Sep;171(2):325-334. doi: 10.1007/s10549-018-4828-5. Epub 2018 May 22.
PubMed 29789969Dickler MN, Barry WT, Cirrincione CT, Ellis MJ, Moynahan ME, Innocenti F, Hurria A, Rugo HS, Lake DE, Hahn O, Schneider BP, Tripathy D, Carey LA, Winer EP, Hudis CA. Phase III Trial Evaluating Letrozole As First-Line Endocrine Therapy With or Without Bevacizumab for the Treatment of Postmenopausal Women With Hormone Receptor-Positive Advanced-Stage Breast Cancer: CALGB 40503 (Alliance). J Clin Oncol. 2016 Aug 1;34(22):2602-9. doi: 10.1200/JCO.2015.66.1595. Epub 2016 May 2.
PubMed 27138575
Study at a glance
From the registry record, last updated by the sponsor on 28 Aug 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Endocrine Therapy With or Without Anti-VEGF Therapy: A Randomized, Phase III Trial of Endocrine Therapy Alone or Endocrine Therapy Plus Bevacizumab (NSC 704865) for Women With Hormone Receptor-Positive Advanced Breast Cancer
- ClinicalTrials.gov ID
- NCT00601900
- Acronym / sponsor ID
- NCI-2009-00477
- Conditions
- Invasive Breast Carcinoma, Recurrent Breast Carcinoma, Stage III Breast Cancer AJCC v6, Stage IV Breast Cancer AJCC v6 and v7
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 394 participants (actual)
- Lead sponsor
- National Cancer Institute (NCI)US National Institutes of Health
- Study start
- 24 Sep 2008 (actual)
- Primary completion
- 30 Jun 2014 (actual)
- Study completion
- 29 Jan 2024 (actual)
- First posted
- 28 Jan 2008 (estimated)
- Results
- Posted 23 Aug 2016
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This randomized phase III trial studies tamoxifen citrate or letrozole together with bevacizumab to see how well it works compared with tamoxifen citrate or letrozole alone in treating women with stage IIIB or stage IV breast cancer. Estrogen can cause the growth of breast cancer cells. Hormone therapy using tamoxifen citrate or letrozole may fight breast cancer by blocking the use of estrogen by the tumor cells. Immunotherapy with monoclonal antibodies, such as bevacizumab, may induce changes in the body's immune system and may interfere with the ability of tumor cells to grow and spread. It is not yet known whether giving hormone therapy is more effective with or without bevacizumab in treating advanced breast cancer.
Detailed description
PRIMARY OBJECTIVES:
- To compare the progression-free survival of letrozole therapy alone with the combination of letrozole therapy plus bevacizumab as first-line treatment in women with estrogen- and/or progesterone-receptor-positive advanced breast cancer.
SECONDARY OBJECTIVES:
- To compare the proportion of patients receiving letrozole alone, who remain progression-free at 6 and 12 months, to those receiving letrozole plus bevacizumab.
II. To compare the incidence of objective response (complete response [CR] + partial response [PR]) in patients receiving letrozole with and without bevacizumab, as determined by Response Evaluation Criteria in Solid Tumors (RECIST) criteria, excluding patients with non-measurable disease.
III. To compare the incidence of clinical benefit (CR + PR + stable disease >= 6 months) in patients receiving letrozole with and without bevacizumab.
IV. To compare the duration of objective response in patients receiving letrozole with and without bevacizumab.
- To compare the time to treatment failure in patients receiving letrozole with and without bevacizumab.
VI. To compare the overall survival of patients receiving letrozole with and without bevacizumab, including the probability of survival until 36 months.
VII. To compare toxicity levels between the bevacizumab arm and the arm without bevacizumab in both the letrozole-treated patients and in the tamoxifen-treated patients.
VIII. To compare progression-free survival and overall survival of all patients receiving endocrine therapy with and without bevacizumab (by combining both letrozole and tamoxifen* patient subgroups).
CORRELATIVE OBJECTIVES:
- To compare baseline and changes in serial levels of circulating endothelial cells and circulating tumor cells in patients treated with endocrine therapy alone or endocrine therapy plus bevacizumab, and to explore the relationship of these markers with progression free survival.
II. To conduct proteomic analysis of longitudinal samples from patients with advanced-stage disease undergoing hormonal therapy to define new serum-based biomarkers related to disease activity.
III. To identify biologic correlates that will predict progression-free survival (PFS) and response to therapy.
IV. To conduct pharmacogenomic assessment of candidate variants in the VEGF, CYP2D6, and CYP19 genes and evaluate their association with PFS and other study outcomes.
- To identify single nucleotide polymorphisms (SNPs) associated with progression free survival in the genome-wide approach (GWAS).
VI. To identify factors other than chronological age that predict the risk of grade 3, 4 or 5 toxicity with bevacizumab and endocrine therapy by means of functional age assessment measures.
VII. To perform an exploratory analysis of the ability of the other factors included in the functional age assessment (either individual or in combination), to predict the risk of grade 3, 4 or 5 toxicity.
VIII. To evaluate longitudinal changes in the parameters of the factors described in objective VI while on therapy.
OUTLINE: Patients are randomized to 1 of 2 treatment arms.
NOTE: The placebo-controlled portion of the study was canceled on 5-15-10.
ARM I: Patients receive endocrine therapy* (tamoxifen citrate or letrozole) orally (PO) once daily (QD) on days 1-21 and bevacizumab intravenously (IV) over 30-90 minutes on day 1. Treatment repeats every 21 days in the absence of disease progression or unacceptable toxicity.
ARM II: Patients receive endocrine therapy* (tamoxifen citrate or letrozole) PO QD on days 1-21. Treatment repeats every 21 days in the absence of disease progression or unacceptable toxicity.
After completion of study therapy, patients are followed up every 6 months for the first 2 years and then annually for up to 3 years.
- NOTE: As of 5/15/2011, patients only receive letrozole.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Arm I (endocrine therapy with monoclonal antibody) | Experimental | Biological: Bevacizumab, Other: Laboratory Biomarker Analysis, Drug: Letrozole, Other: Questionnaire Administration, Drug: Tamoxifen CitratePatients receive endocrine therapy* (tamoxifen citrate* or letrozole) PO QD on days 1-21 and bevacizumab 15 mg/kg IV over 30-90 minutes on day 1. Treatment repeats every 21 days in the absence of disease progression or unacceptable toxicity. |
| Arm II (endocrine therapy) | Active comparator | Other: Laboratory Biomarker Analysis, Drug: Letrozole, Other: Questionnaire Administration, Drug: Tamoxifen CitratePatients receive endocrine therapy* (tamoxifen citrate* or letrozole) PO QD on days 1-21. Treatment repeats every 21 days in the absence of disease progression or unacceptable toxicity. |
Who may qualify
- Ages
- 18 years and older
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (62 listed)
- Histologic confirmation of invasive cancer of the female breast in either the primary or metastatic setting
- Patients may not have a "currently active" second malignancy other than non-melanoma skin cancers; patients are not considered to have a "currently active" malignancy if they have completed therapy and are considered by their physician to be at less than 30% risk of relapse
- Tumors (from either primary or metastatic sites) must express estrogen receptor (ER) and/or progesterone receptor (PgR) in >= 1% of cells will be considered positive
- Postmenopausal women are eligible for this trial; before study registration, menopausal status must be defined according to the criteria below:
- Premenopausal women who do not meet the postmenopausal criteria above are also eligible, but are required to undergo ovarian suppression; this can be initiated any time prior to or on day 1 of protocol therapy, regardless of chosen endocrine therapy, and will continue for the duration of protocol therapy
Key exclusion criteria (0 listed)
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 |
|---|---|---|
| BevacizumabAlso: ABP 215, ABP-215, ABP215, AlymsysGiven IV | Biological | Arm I (endocrine therapy with monoclonal antibody) |
| Laboratory Biomarker AnalysisCorrelative studies | Other | Arm I (endocrine therapy with monoclonal antibody), Arm II (endocrine therapy) |
| LetrozoleAlso: CGS 20267, CGS-20267, CGS20267, FemaraGiven PO | Drug | Arm I (endocrine therapy with monoclonal antibody), Arm II (endocrine therapy) |
| Questionnaire AdministrationAncillary studies | Other | Arm I (endocrine therapy with monoclonal antibody), Arm II (endocrine therapy) |
| Tamoxifen CitrateAlso: Apo-Tamox, Clonoxifen, Dignotamoxi, EbefenGiven PO | Drug | Arm I (endocrine therapy with monoclonal antibody), Arm II (endocrine therapy) |
Primary outcome
Progression-free Survival
Time frame: From randomization until disease progression or death whichever occurs first, assessed up to 5 years
The Primary Endpoint for this study was to compare the progression-free survival of letrozole therapy alone with the combination of letrozole therapy plus bevacizumab as first-line treatment in women with estrogen- and/or progesterone-receptor-positive advanced breast cancer. Progression-free survival (PFS) was defined as the time from randomization until disease progression or death, whichever occurs first. The median PFS was estimated using the Kaplan-Meier method. Progression was assessed per RECIST criteria, and defined as at least a 20% increase in the sum of the longest diameters of target lesions from baseline or the appearance of new lesions.
9 secondary outcomes
12 Month Progression Free Survival Rate
Time frame: At 12 months
6 Month Progression-Free Survival Rate
Time frame: At 6 months
Objective Response Rate
Time frame: Assessed up to 5 years
Overall Survival (OS)
Time frame: Assessed up to 5 years
Duration of Tumor Response
Time frame: 5 years
Overall Survival (OS) at 36 Months
Time frame: 36 months
Clinical Benefit Rate (CBR)
Time frame: 5 years
Time-to-treatment Failure
Time frame: 5 years
Grade 3 or Higher Treatment Related Toxicity
Time frame: 5 years
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Aug 2026.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 34616010Quintanilha JCF, Wang J, Sibley AB, Jiang C, Etheridge AS, Shen F, Jiang G, Mulkey F, Patel JN, Hertz DL, Dees EC, McLeod HL, Bertagnolli M, Rugo H, Kindler HL, Kelly WK, Ratain MJ, Kroetz DL, Owzar K, Schneider BP, Lin D, Innocenti F. Bevacizumab-induced hypertension and proteinuria: a genome-wide study of more than 1000 patients. Br J Cancer. 2022 Feb;126(2):265-274. doi: 10.1038/s41416-021-01557-w. Epub 2021 Oct 6.
- Derived from this study: PubMed 31276981Martin M, Loibl S, Hyslop T, De la Haba-Rodriguez J, Aktas B, Cirrincione CT, Mehta K, Barry WT, Morales S, Carey LA, Garcia-Saenz JA, Partridge A, Martinez-Janez N, Hahn O, Winer E, Guerrero-Zotano A, Hudis C, Casas M, Rodriguez-Martin C, Furlanetto J, Carrasco E, Dickler MN; GEICAM Spanish Breast Cancer Group; GBG (German Breast Group); Alliance for Clinical Trials in Oncology (Alliance). Evaluating the addition of bevacizumab to endocrine therapy as first-line treatment for hormone receptor-positive metastatic breast cancer: a pooled analysis from the LEA (GEICAM/2006-11_GBG51) and CALGB 40503 (Alliance) trials. Eur J Cancer. 2019 Aug;117:91-98. doi: 10.1016/j.ejca.2019.06.002. Epub 2019 Jul 2.
- Derived from this study: PubMed 29789969Li D, McCall LM, Hahn OM, Hudis CA, Cohen HJ, Muss HB, Jatoi A, Lafky JM, Ballman KV, Winer EP, Tripathy D, Schneider B, Barry W, Dickler MN, Hurria A. Identification of risk factors for toxicity in patients with hormone receptor-positive advanced breast cancer treated with bevacizumab plus letrozole: a CALGB 40503 (alliance) correlative study. Breast Cancer Res Treat. 2018 Sep;171(2):325-334. doi: 10.1007/s10549-018-4828-5. Epub 2018 May 22.
- Derived from this study: PubMed 27138575Dickler MN, Barry WT, Cirrincione CT, Ellis MJ, Moynahan ME, Innocenti F, Hurria A, Rugo HS, Lake DE, Hahn O, Schneider BP, Tripathy D, Carey LA, Winer EP, Hudis CA. Phase III Trial Evaluating Letrozole As First-Line Endocrine Therapy With or Without Bevacizumab for the Treatment of Postmenopausal Women With Hormone Receptor-Positive Advanced-Stage Breast Cancer: CALGB 40503 (Alliance). J Clin Oncol. 2016 Aug 1;34(22):2602-9. doi: 10.1200/JCO.2015.66.1595. Epub 2016 May 2.
- 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.
Hope S Rugo principal investigator
Alliance for Clinical Trials in Oncology
522 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 Bevacizumab, Laboratory Biomarker Analysis and Letrozole in people with Invasive Breast Carcinoma and Recurrent Breast Carcinoma, run by National Cancer Institute (NCI) at 522 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?
The sponsor lists 62 inclusion and 0 exclusion criteria. 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 28 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 522 sites in United States, Puerto Rico. 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?
Yes. Results are posted in the registry (first posted 23 Aug 2016). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
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?
Progression-free Survival (time frame: From randomization until disease progression or death whichever occurs first, assessed up to 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 NCT00601900, which also lists 4 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 28 Aug 2026.