Clinical Research Directory
Browse clinical research sites, groups, and studies.
Tamoxifen Citrate, Letrozole, Anastrozole, or Exemestane With or Without Chemotherapy in Treating Patients With Invasive RxPONDER Breast Cancer
Sponsor: National Cancer Institute (NCI)
Summary
This randomized phase III clinical trial studies how well tamoxifen citrate, anastrozole, letrozole, or exemestane with or without chemotherapy work in treating patients with breast cancer that has spread from where it began in the breast to surrounding normal tissue (invasive). Estrogen can cause the growth of breast cancer cells. Hormone therapy, using tamoxifen citrate, may fight breast cancer by blocking the use of estrogen by the tumor cells. Aromatase inhibitors, such as anastrozole, letrozole, and exemestane, may fight breast cancer by lowering the amount of estrogen the body makes. Drugs used in chemotherapy work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. It is not yet known whether giving tamoxifen citrate, anastrozole, letrozole, or exemestane is more effective with combination chemotherapy in treating patients with breast cancer.
Official title: A Phase III, Randomized Clinical Trial of Standard Adjuvant Endocrine Therapy +/- Chemotherapy in Patients With 1-3 Positive Nodes, Hormone Receptor-Positive and HER2-Negative Breast Cancer With Recurrence Score (RS) of 25 or Less. RxPONDER: A Clinical Trial Rx for Positive Node, Endocrine Responsive Breast Cancer
Key Details
Gender
FEMALE
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
5018
Start Date
2011-02-28
Completion Date
2027-01-08
Last Updated
2026-10-26
Healthy Volunteers
No
Conditions
Interventions
Anastrozole
Given PO
Exemestane
Given PO
Laboratory Biomarker Analysis
Correlative studies
Letrozole
Given PO
Quality-of-Life Assessment
Ancillary studies (closed as of 12/1/12)
Systemic Chemotherapy
Given IV
Tamoxifen Citrate
Given PO
Locations (1568)
Northeast Alabama Regional Medical Center
Anniston, Alabama, United States
University of Alabama at Birmingham Cancer Center
Birmingham, Alabama, United States
Providence Hospital
Mobile, Alabama, United States
University of South Alabama Mitchell Cancer Institute
Mobile, Alabama, United States
Anchorage Associates in Radiation Medicine
Anchorage, Alaska, United States
Anchorage Radiation Therapy Center
Anchorage, Alaska, United States
Alaska Breast Care and Surgery LLC
Anchorage, Alaska, United States
Alaska Oncology and Hematology LLC
Anchorage, Alaska, United States
Alaska Regional Hospital
Anchorage, Alaska, United States
Alaska Women's Cancer Care
Anchorage, Alaska, United States
Anchorage Oncology Centre
Anchorage, Alaska, United States
Katmai Oncology Group
Anchorage, Alaska, United States
Providence Alaska Medical Center
Anchorage, Alaska, United States
Fairbanks Memorial Hospital
Fairbanks, Alaska, United States
Virginia G Piper Cancer Care-Del Camino
Scottsdale, Arizona, United States
Mercy Hospital Fort Smith
Fort Smith, Arkansas, United States
CHI Saint Vincent Cancer Center Hot Springs
Hot Springs, Arkansas, United States
NEA Baptist Memorial Hospital and Fowler Family Cancer Center - Jonesboro
Jonesboro, Arkansas, United States
NEA Baptist Memorial Hospital
Jonesboro, Arkansas, United States
Kaiser Permanente-Anaheim
Anaheim, California, United States
East Bay Medical Oncology Hematology Medical Associates-Antioch
Antioch, California, United States
Kaiser Permanente-Deer Valley Medical Center
Antioch, California, United States
PCR Oncology
Arroyo Grande, California, United States
Sutter Auburn Faith Hospital
Auburn, California, United States
Sutter Cancer Centers Radiation Oncology Services-Auburn
Auburn, California, United States
Kaiser Permanente-Baldwin Park
Baldwin Park, California, United States
Kaiser Permanente-Bellflower
Bellflower, California, United States
Alta Bates Summit Medical Center-Herrick Campus
Berkeley, California, United States
Providence Saint Joseph Medical Center/Disney Family Cancer Center
Burbank, California, United States
Mills-Peninsula Medical Center
Burlingame, California, United States
Sutter Cancer Centers Radiation Oncology Services-Cameron Park
Cameron Park, California, United States
Mercy San Juan Medical Center
Carmichael, California, United States
East Bay Radiation Oncology Center
Castro Valley, California, United States
Eden Hospital Medical Center
Castro Valley, California, United States
Valley Medical Oncology Consultants-Castro Valley
Castro Valley, California, United States
Community Cancer Institute
Clovis, California, United States
University Oncology Associates
Clovis, California, United States
John Muir Medical Center-Concord
Concord, California, United States
UC Irvine Health Cancer Center-Newport
Costa Mesa, California, United States
Sutter Davis Hospital
Davis, California, United States
City of Hope Comprehensive Cancer Center
Duarte, California, United States
Epic Care-Dublin
Dublin, California, United States
Bay Area Breast Surgeons Inc
Emeryville, California, United States
Epic Care Partners in Cancer Care
Emeryville, California, United States
Kaiser Permanente-Fontana
Fontana, California, United States
Kaiser Permanente-Fremont
Fremont, California, United States
Palo Alto Medical Foundation-Fremont
Fremont, California, United States
Valley Medical Oncology Consultants-Fremont
Fremont, California, United States
Washington Health
Fremont, California, United States
Kaiser Permanente-Fresno
Fresno, California, United States
Kaiser Permanente South Bay
Harbor City, California, United States
Kaiser Permanente-Irvine
Irvine, California, United States
UC San Diego Moores Cancer Center
La Jolla, California, United States
Loma Linda University Medical Center
Loma Linda, California, United States
Long Beach Memorial Medical Center-Todd Cancer Institute
Long Beach, California, United States
Kaiser Permanente Los Angeles Medical Center
Los Angeles, California, United States
Los Angeles General Medical Center
Los Angeles, California, United States
USC / Norris Comprehensive Cancer Center
Los Angeles, California, United States
Kaiser Permanente West Los Angeles
Los Angeles, California, United States
Cedars-Sinai Medical Center
Los Angeles, California, United States
Contra Costa Regional Medical Center
Martinez, California, United States
Fremont - Rideout Cancer Center
Marysville, California, United States
Mercy Cancer Center
Merced, California, United States
Memorial Medical Center
Modesto, California, United States
Kaiser Permanente-Modesto
Modesto, California, United States
El Camino Hospital
Mountain View, California, United States
Palo Alto Medical Foundation-Camino Division
Mountain View, California, United States
Palo Alto Medical Foundation-Gynecologic Oncology
Mountain View, California, United States
Northridge Hospital Medical Center
Northridge, California, United States
Sutter Cancer Research Consortium
Novato, California, United States
Wilma Chan Highland Hospital
Oakland, California, United States
Alta Bates Summit Medical Center - Summit Campus
Oakland, California, United States
Bay Area Tumor Institute
Oakland, California, United States
Hematology and Oncology Associates-Oakland
Oakland, California, United States
Tom K Lee Inc
Oakland, California, United States
Kaiser Permanente-Oakland
Oakland, California, United States
Saint Joseph Hospital - Orange
Orange, California, United States
UC Irvine Health/Chao Family Comprehensive Cancer Center
Orange, California, United States
Desert Regional Medical Center
Palm Springs, California, United States
Palo Alto Medical Foundation Health Care
Palo Alto, California, United States
Stanford Cancer Institute Palo Alto
Palo Alto, California, United States
Kaiser Permanente - Panorama City
Panorama City, California, United States
Keck Medical Center of USC Pasadena
Pasadena, California, United States
East Bay Medical Oncology Hematology Medical Associates Inc-Pleasant Hill
Pleasant Hill, California, United States
John Muir Health Cancer Medical Group
Pleasant Hill, California, United States
Valley Medical Oncology Consultants
Pleasanton, California, United States
Pomona Valley Hospital Medical Center
Pomona, California, United States
Kaiser Permanente-Redwood City
Redwood City, California, United States
Kaiser Permanente-Richmond
Richmond, California, United States
Kaiser Permanente-Riverside
Riverside, California, United States
Kaiser Permanente-Roseville
Roseville, California, United States
Sutter Cancer Centers Radiation Oncology Services-Roseville
Roseville, California, United States
Sutter Roseville Medical Center
Roseville, California, United States
Sutter Medical Center Sacramento
Sacramento, California, United States
University of California Davis Comprehensive Cancer Center
Sacramento, California, United States
Kaiser Permanente-South Sacramento
Sacramento, California, United States
Kaiser Permanente Sacramento Medical Center
Sacramento, California, United States
Salinas Valley Memorial
Salinas, California, United States
Kaiser Permanente-Rio San Diego
San Diego, California, United States
Kaiser Permanente-San Diego Zion
San Diego, California, United States