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A Three-Arm Randomized Trial to Compare Adjuvant Adriamycin and Cyclophosphamide Followed by Taxotere (AC-T); Adriamycin and Taxotere (AT); and Adriamycin, Taxotere, and Cyclophosphamide (ATC) in Breast Cancer Patients With Positive Axillary Lymph Nodes (NCT00003782)

National Cancer Institute (NCI)
RATIONALE: Drugs used in chemotherapy use different ways to stop tumor cells from dividing so they stop growing or die. Giving combination chemotherapy after surgery may kill any tumor cells remaining following surgery. It is not yet known which regimen of combination chemotherapy is more effective in treating breast cancer with positive axillary lymph nodes. PURPOSE: Randomized phase III trial to compare the effectiveness of different regimens of combination chemotherapy in treating women who have undergone surgery for stage I, stage II, or stage IIIA breast cancer with positive axillary lymph nodes.
  • Drug: cyclophosphamide
    Arm 1: 600 mg/m2 IV every 21 days for 4 cycles; Arm 3: 500 mg/m2 IV every 21 days for 4 cycles
    • Drug: docetaxel
      Arm 1: 100 mg/m2 IV every 21 days for 4 cycles; Arms 2 and 3: 75 mg/m2 IV every 21 days for 4 cycles
      • Taxotere
    • Drug: doxorubicin
      Arm 1: 60 mg/m2 IV every 21 days for 4 cycles; Arms 2 and 3: 50 mg/m2 IV every 21 days for 4 cycles
      • Adriamycin
    Ages eligible for Study
    18 Years and older
    Genders eligible for Study
    Female
    Accepts Healthy Volunteers
    No
    OBJECTIVES:

    - Compare the efficacy of adjuvant doxorubicin, cyclophosphamide, and docetaxel given concurrently vs adjuvant doxorubicin and cyclophosphamide followed by docetaxel, in terms of overall survival and disease-free survival, of women with breast cancer and positive axillary lymph nodes.

    - Compare the efficacy of adjuvant doxorubicin and docetaxel vs regimens containing cyclophosphamide in these patients.

    - Compare the toxic effects of these regimens in these patients.

    - Compare the quality of life of patients treated with these regimens. (Quality of life substudy closed to accrual as of 7/20/01.)

    - Compare the differences in amenorrhea in premenopausal women in each treatment arm and its relationship to symptoms, quality of life (quality of life substudy closed to accrual as of 7/20/01), disease-free survival, and overall survival.

    OUTLINE: This is a randomized, multicenter study. Patients are stratified according to participating center, number of positive nodes (1-3 vs 4-9 vs at least 10), sequential tamoxifen or anastrozole administration (yes vs no), and type of prior surgery and radiotherapy plan (mastectomy with no local or regional radiotherapy vs mastectomy with local and/or regional radiotherapy vs lumpectomy with local radiotherapy vs lumpectomy with local and regional radiotherapy). Patients are randomized to one of three treatment arms.

    - Arm 1: Patients receive doxorubicin IV over 15 minutes and cyclophosphamide IV over 30 minutes every 21 days for 4 courses. Three weeks after the last dose of this combination, patients receive docetaxel IV over 1 hour every 21 days for 4 courses.

    - Arm 2: Patients receive doxorubicin IV over 15 minutes and docetaxel IV over 1 hour every 21 days for 4 courses.

    - Arm 3: Patients receive doxorubicin IV over 15 minutes, cyclophosphamide IV over 30 minutes, and docetaxel IV over 1 hour every 21 days for 4 courses.

    Patients in all arms who are estrogen receptor-positive and/or progesterone receptor-positive receive oral tamoxifen daily for 5 years beginning within 3-12 weeks of completion of chemotherapy. Patients who are postmenopausal may receive alternative hormonal therapy at the discretion of the treating physician.

    Some patients may receive postmastectomy radiotherapy on SWOG-S9927 or NCIC-MA.20 after recovery from chemotherapy.

    Quality of life and menstrual history are assessed before randomization, on day 1 of course 4, and at 6, 12, 18, and 24 months. (Quality of life substudy closed to accrual as of 7/20/01.)

    Patients are followed every 6 months for 5 years and then annually thereafter.

    PROJECTED ACCRUAL: A total of 5,300 patients will be accrued for this study within 4-5 years.

    157 locations

    Participant Flow: Overall Study
    Arm 1: Doxorubicin + Cyclophosphamide, Then Docetaxel
    Arm 2: Doxorubicin + Docetaxel
    Arm 3: Doxorubicin + Docetaxel + Cyclophosphamide
    Serious Adverse Events
    Doxorubicin + Cyclophosphamide, Then Docetaxel
    Doxorubicin + Docetaxel
    Doxorubicin + Docetaxel + Cyclophosphamide
    Other Adverse Events
    Doxorubicin + Cyclophosphamide, Then Docetaxel
    Doxorubicin + Docetaxel
    Doxorubicin + Docetaxel + Cyclophosphamide
    Status:
    completed
    Type:
    Interventional
    Phase:
    Start:
    28 February, 1999
    Updated:
    10 January, 2013
    Participants:
    5351
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