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Sponsors and Collaborators: |
National Surgical Adjuvant Breast and Bowel Project (NSABP) National Cancer Institute (NCI) |
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Information provided by: | National Cancer Institute (NCI) |
ClinicalTrials.gov Identifier: | NCT00004067 |
RATIONALE: Drugs used in chemotherapy, such as doxorubicin, cyclophosphamide, and paclitaxel, use different ways to stop tumor cells from dividing so they stop growing or die. Monoclonal antibodies such as trastuzumab can locate tumor cells and either kill them or deliver tumor-killing substances to them without harming normal cells. It is not yet known whether combination chemotherapy plus trastuzumab is more effective than combination chemotherapy alone for treating breast cancer.
PURPOSE: This randomized phase III trial is studying how well giving combination chemotherapy together with trastuzumab works compared to combination chemotherapy alone in treating women with node-positive stage II or stage IIIA breast cancer that overexpresses HER2.
Condition | Intervention | Phase |
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Breast Cancer |
Drug: cyclophosphamide Drug: doxorubicin hydrochloride Drug: paclitaxel Drug: tamoxifen citrate Drug: trastuzumab Procedure: endocrine drug therapy Procedure: radiation therapy |
Phase III |
Study Type: | Interventional |
Study Design: | Treatment, Randomized, Active Control |
Official Title: | A Randomized Trial Comparing the Safety and Efficacy of Adriamycin and Cyclophosphamide Followed by Taxol (AC-T) to That of Adriamycin and Cyclophosphamide Followed by Taxol Plus Herceptin (AC-T+H) in Node-Positive Breast Cancer Patients Who Have Tumors That Overexpress HER2 |
Estimated Enrollment: | 2700 |
Study Start Date: | February 2000 |
OBJECTIVES:
OUTLINE: This is a randomized, multicenter study. Patients are stratified according to number of positive nodes (1-3 vs 4-9 vs 10 or more), administration of hormonal therapy (tamoxifen vs anastrozole vs neither), surgery/radiotherapy (lumpectomy plus breast irradiation vs lumpectomy plus breast irradiation plus regional irradiation vs mastectomy without radiotherapy vs mastectomy with radiotherapy), paclitaxel schedule (every 3 weeks vs weekly), and participating center. Patients are randomized to one of two treatment arms.
All patients with estrogen or progesterone receptor-positive tumors receive hormonal therapy* for at least 5 years, beginning within 3-12 weeks after the last dose of chemotherapy. Patients who have received prior tamoxifen for prevention may be treated with additional tamoxifen for no more than 5 years at the discretion of the principal investigator (PI).
NOTE: *Other hormonal therapeutic agents are allowed in sequence with or as an alternative to tamoxifen therapy.
All patients previously treated with lumpectomy undergo breast irradiation beginning after completion of chemotherapy and concurrently with trastuzumab (in arm II) administration. Patients previously treated with mastectomy may also receive radiotherapy. Radiotherapy is administered daily for 5-6 weeks.
Patients are followed every 6 months for 5 years and then annually thereafter.
PROJECTED ACCRUAL: A total of 2,700 patients will be accrued for this study within 4.75 years.
Genders Eligible for Study: | Female |
Accepts Healthy Volunteers: | No |
DISEASE CHARACTERISTICS:
Histologically or cytologically proven invasive adenocarcinoma of the breast
HER2 strongly positive (3+ by immunostain OR gene amplification by fluorescent in situ hybridization)
Must have undergone axillary dissection and either total mastectomy OR lumpectomy
No prior breast cancer, including ductal carcinoma in situ
Hormone receptor status:
PATIENT CHARACTERISTICS:
Age:
Sex:
Menopausal status:
Performance status:
Life expectancy:
Hematopoietic:
Hepatic:
Renal:
Cardiovascular:
Other:
PRIOR CONCURRENT THERAPY:
Biologic therapy:
Chemotherapy:
Endocrine therapy:
Radiotherapy:
Surgery:
Other:
Study Chair: | Edward H. Romond, MD | Lucille P. Markey Cancer Center at University of Kentucky |
Study ID Numbers: | CDR0000067269, NSABP-B-31 |
Study First Received: | December 10, 1999 |
Last Updated: | October 8, 2008 |
ClinicalTrials.gov Identifier: | NCT00004067 |
Health Authority: | United States: Federal Government |
stage II breast cancer stage IIIA breast cancer |
Skin Diseases Paclitaxel Citric Acid Trastuzumab Breast Neoplasms |
Cyclophosphamide Tamoxifen Doxorubicin Breast Diseases |
Molecular Mechanisms of Pharmacological Action Immunologic Factors Antineoplastic Agents Hormone Antagonists Physiological Effects of Drugs Hormones, Hormone Substitutes, and Hormone Antagonists Bone Density Conservation Agents Antibiotics, Antineoplastic Selective Estrogen Receptor Modulators Estrogen Receptor Modulators Neoplasms by Site Therapeutic Uses Alkylating Agents |
Estrogen Antagonists Antineoplastic Agents, Hormonal Mitosis Modulators Antimitotic Agents Immunosuppressive Agents Pharmacologic Actions Neoplasms Tubulin Modulators Myeloablative Agonists Antineoplastic Agents, Alkylating Antirheumatic Agents Antineoplastic Agents, Phytogenic |