Docetaxel, Doxorubicin (A), Cyclophosphamide (C) (TAC) vs 5-Fluorouracil, A, C (5FAC) Breast Cancer Adjuvant Treatment

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

1060 participants

Study Classification

INTERVENTIONAL

Study Start Date

1999-07-31

Study Completion Date

2013-03-06

Brief Summary

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This is a prospective, non-blinded randomized phase III trial. Patients will be post-surgically stratified at inclusion first according to the participating institution, then according to menopausal status and will be randomly assigned to receive either:

* TAC: Docetaxel 75 mg/m2 as a 1 hour intravenous (i.v.) infusion on day 1 every 3 weeks (q3w) in combination with doxorubicin 50 mg/m2 as an i.v. bolus and cyclophosphamide 500 mg/m2 as an i.v. bolus on day 1 every 3 weeks.
* FAC: 5-fluorouracil 500 mg/m2 as an i.v. bolus on day 1 every 3 weeks in combination with doxorubicin 50 mg/m2 as an i.v. bolus and cyclophosphamide 500 mg/m2 as an i.v. bolus on day 1 every 3 weeks.

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Detailed Description

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Primary objective:

* To compare disease-free survival (DFS) after treatment with docetaxel in combination with doxorubicin and cyclophosphamide (TAC) to 5-Fluorouracil in combination with doxorubicin and cyclophosphamide (FAC) as adjuvant treatment of high risk operable breast cancer patients with negative axillary lymph nodes.

Secondary objectives:

* To compare overall survival (OS) between the 2 above mentioned arms.
* To compare toxicity and quality of life between the 2 above mentioned arms.
* To evaluate pathologic markers for predicting efficacy (hormonal receptors and human epidermal growth factor receptor 2 (HER2) protein expression).

Conditions

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Breast Neoplasms

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Arm A: FAC

FAC (5-fluorouracil, doxorubicin, cyclophosphamide): 5-fluorouracil 500 mg/m2 iv on day 1, each 3 weeks, in combination with doxorubicin 50 mg/m2 iv and cyclophosphamide 500 mg/m2 iv

Group Type ACTIVE_COMPARATOR

5-fluorouracil

Intervention Type DRUG

Doxorubicin

Intervention Type DRUG

Cyclophosphamide

Intervention Type DRUG

Arm B: TAC

TAC (docetaxel, doxorubicin, cyclophosphamide): Docetaxel 75 mg/m2 iv on day 1, each 3 weeks, in combination with doxorubicin 50 mg/m2 iv and cyclophosphamide 500 mg/m2 iv

Group Type EXPERIMENTAL

Docetaxel

Intervention Type DRUG

Doxorubicin

Intervention Type DRUG

Cyclophosphamide

Intervention Type DRUG

Interventions

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Docetaxel

Intervention Type DRUG

5-fluorouracil

Intervention Type DRUG

Doxorubicin

Intervention Type DRUG

Cyclophosphamide

Intervention Type DRUG

Other Intervention Names

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Taxotere Adrucil adriamycin cytoxan

Eligibility Criteria

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Inclusion Criteria

* Written informed consent
* Operable breast cancer patients (T1-T3) with negative axillary lymph nodes (10 axillary nodes dissection) and high risk criteria according to St. Gallen consensus criteria.
* Histologically proven breast cancer. Interval between surgery and registration is less than 60 days.
* Definitive surgical treatment must be either mastectomy, or breast conservative surgery. Margins of resected specimen from surgery must be histologically free of invasive adenocarcinoma and ductal carcinoma in-situ (DCIS). Lobular carcinoma in-situ is not considered as positive margin.
* Patients without proven metastatic disease.
* Estrogen and progesterone receptors performed on the primary tumour prior to randomization.
* Age between 18 years and 70 years.
* Karnofsky performance status index \> 80 %.
* Adequate hepatic, renal and heart functions.
* Adequate hematology levels.
* Negative pregnancy test

Exclusion Criteria

* Prior systemic anticancer therapy for breast cancer (immunotherapy, hormonotherapy, chemotherapy).
* Prior anthracycline therapy or taxoids (paclitaxel, docetaxel) for any malignancy.
* Prior radiation therapy for breast cancer.
* Bilateral invasive breast cancer.
* Pregnant, or lactating patients.
* Patients of childbearing potential must implement adequate non-hormonal contraceptive measures during study treatment .
* Any T4 or N1-3 or M1 breast cancer.
* Pre-existing motor or sensory neurotoxicity of a severity grade 2 by NCI criteria.
* Other serious illness or medical condition
* Past or current history of neoplasm other than breast carcinoma.
* Ipsilateral ductal carcinoma in-situ (DCIS) of the breast.
* Lobular carcinoma in-situ (LCIS) of the breast.
* Chronic treatment with corticosteroids unless initiated \> 6 months prior to study entry and at low dose
* Concurrent treatment with ovarian hormonal replacement therapy. Prior treatment should be stopped before study entry.
* Definite contraindications for the use of corticosteroids.
* Concurrent treatment with other experimental drugs.
* Participation in another clinical trial with any investigational not marketed drug within 30 days prior to study entry.
* Concurrent treatment with any other anti-cancer therapy.
* Male patients.

Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No