Phase III Trial of Doxorubicin and Cyclophosphamide (AC) Followed by Weekly Paclitaxel With or Without Trastuzumab as Adjuvant Treatment for Women With HER-2 Overexpressing Node Positive or High-Risk Node Negative Breast Cancer
PRIMARY OBJECTIVES:
I. Compare the disease-free survival of women with HER-2-overexpressing node-positive or
high-risk node-negative breast cancer treated with doxorubicin plus cyclophosphamide
followed by paclitaxel with or without trastuzumab (Herceptin).
II. Compare the cardiotoxic effects of these regimens in these patients.
SECONDARY OBJECTIVES:
I. Compare the overall survival of patients treated with these regimens.
TERTIARY OBJECTIVES:
I. Determine whether higher levels of shed extracellular domain or autoantibodies to HER-2
and HER-1 measured in the serum prior to treatment are prognostic for disease-free and
overall survival in these patients.
II. Determine whether the concordance of HER-2 overexpression is associated with
disease-free and overall survival in this patient population.
OUTLINE: This is a randomized, multicenter study. Patients are stratified according to nodal
status (0 vs 1-3 positive nodes by axillary nodal dissection vs 4-9 positive nodes by
axillary nodal dissection vs at least 10 positive nodes by axillary nodal dissection vs
positive sentinel node with no or negative axillary nodal dissection vs negative sentinel
node with no axillary nodal dissection vs node negative by axillary nodal dissection) and
receptor status (estrogen receptor [ER] or progesterone receptor [PR] positive vs other).
Patients are randomized to 1 of 3 treatment arms.
ARM I*: Patients receive doxorubicin IV and cyclophosphamide IV over 20-30 minutes on day
1. Treatment repeats every 3 weeks for 4 courses. Patients then receive paclitaxel IV over
1 hour beginning on day 1 of week 13 and continuing weekly for 12 courses in the absence of
disease progression or unacceptable toxicity. NOTE: *Patients who completed paclitaxel on or
after October 25, 2004 may receive trastuzumab for a maximum of 52 weeks either concurrently
with paclitaxel or following completion of paclitaxel treatment.
ARM II*: Patients receive doxorubicin, cyclophosphamide, and paclitaxel as in arm I.
Patients then receive trastuzumab (Herceptin®) IV over 30-90 minutes beginning on day 1 of
week 25 and continuing weekly for 52 courses in the absence of disease progression or
unacceptable toxicity. NOTE: *Patients who completed paclitaxel on or after October 25, 2004
may receive trastuzumab for a maximum of 52 weeks either concurrently with paclitaxel or
following completion of paclitaxel treatment.
ARM III: Patients receive doxorubicin and cyclophosphamide as in arm I. Patients then
receive paclitaxel IV over 1 hour and trastuzumab IV over 30-90 minutes beginning on day 1
of week 13 and continuing weekly for 12 courses. Patients then receive trastuzumab IV over
30 minutes beginning on day 1 of week 25 and continuing weekly for 40 courses in the absence
of disease progression or unacceptable toxicity.
Within 5 weeks after completion of paclitaxel, patients may undergo radiotherapy. All
postmenopausal ER- or PR-positive patients receive oral tamoxifen or an aromatase inhibitor
once daily for 5 years beginning no later than 5 weeks after the last dose of paclitaxel.
Patients may also receive an aromatase inhibitor once daily for 5 years after 5 years of
daily tamoxifen. Patients who receive tamoxifen once daily for less than 4.5 years may
receive an aromatase inhibitor daily until they have received a total of 5 years of
adjuvant hormonal therapy.
Patients are followed every 3 months for 1 year, every 6 months for 4 years, and then
annually for 15 years or until disease progression.
Interventional
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
Duration of disease-free survival (DFS)
Will be estimated using the Kaplan-Meier method.
Time from registration to first adverse event, assessed up to 15 years
No
Edith Perez
Principal Investigator
North Central Cancer Treatment Group
United States: Food and Drug Administration
NCI-2012-01849
NCT00005970
May 2000
Name | Location |
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North Central Cancer Treatment Group | Rochester, Minnesota 55905 |