Clinical trial NCT00066807 (phase 3, status: terminated)
Conditions: breast cancer
ICD codes: C79.81, D24.1, D24.2, D24.9, D49.3, C44.501, D48.60
Drugs: chemotherapy, exemestane, tamoxifen, triptorelin
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Reason stopped: 
    poor accrual, patients were followed until completion of 5 yrs treatment
  
Eligibility criteria:

        DISEASE CHARACTERISTICS:

          -  Histologically confirmed breast cancer confined to the breast and axillary nodes

               -  No distant metastatic disease

               -  Tumor detected in the internal mammary chain by sentinel node procedure allowed

          -  Must have undergone 1 of the following procedures for primary breast cancer within the
             past 12 weeks and have no known clinical residual locoregional disease:

               -  Total mastectomy with or without adjuvant radiotherapy

               -  Breast-conserving surgery (e.g., lumpectomy, quadrantectomy, or partial
                  mastectomy with margins clear* of invasive cancer and ductal carcinoma in situ)
                  followed by radiotherapy NOTE: *If all other margins are clear, a positive
                  posterior (deep) margin is permitted, provided the excision was performed down to
                  the pectoral fascia and all tumor has been removed OR a positive anterior
                  (superficial; abutting skin) margin is allowed provided all tumor was removed

          -  Prior axillary lymph node dissection or negative axillary sentinel node biopsy
             required

               -  Patients with microscopically positive axillary sentinel nodes allowed provided
                  they were evaluated on a clinical trial evaluating microscopically positive lymph
                  nodes

          -  No locally advanced, inoperable breast cancer, including any of the following
             characteristics:

               -  Inflammatory breast cancer

               -  Supraclavicular node involvement

               -  Enlarged internal mammary nodes (unless pathologically negative)

          -  No prior ipsilateral or contralateral invasive breast cancer

               -  Histologically diagnosed synchronous bilateral invasive breast cancer within the
                  past 2 months allowed if the bilateral disease meets all other eligibility
                  criteria

          -  Hormone receptor status:

               -  Estrogen receptor and/or progesterone receptor positive in each tumor

                    -  At least 10% of tumor cells positive by immunohistochemistry

        PATIENT CHARACTERISTICS:

        Age

          -  Premenopausal

        Sex

          -  Female

        Menopausal status

          -  Premenopausal

               -  Estradiol in the premenopausal range after surgery

        Performance status

          -  Not specified

        Life expectancy

          -  Not specified

        Hematopoietic

          -  Not specified

        Hepatic

          -  No systemic hepatic disease that would preclude prolonged follow-up

        Renal

          -  No systemic renal disease that would preclude prolonged follow-up

        Cardiovascular

          -  No prior deep venous thrombosis and/or embolism unless patient is medically suitable

          -  No systemic cardiovascular disease that would preclude prolonged follow-up

        Pulmonary

          -  No systemic pulmonary disease that would preclude prolonged follow-up

        Other

          -  Not pregnant or nursing

          -  Fertile patients must use effective nonhormonal contraception

          -  No other prior or concurrent invasive malignancy except adequately treated basal cell
             or squamous cell skin cancer, nonbreast carcinoma in situ without invasion,
             contralateral or ipsilateral carcinoma in situ of the breast

          -  No prior or concurrent nonbreast invasive malignancy within the past 5 years that is
             nonrecurrent including any of the following:

               -  Stage I papillary thyroid cancer

               -  Stage Ia carcinoma of the cervix

               -  Stage Ia or b endometrioid endometrial cancer

               -  Borderline or stage I ovarian cancer

          -  No other nonmalignant systemic disease that would preclude prolonged follow-up

          -  No history of noncompliance with medical regimens

          -  No psychiatric, addictive, or other disorder that would preclude study compliance or
             giving informed consent

        PRIOR CONCURRENT THERAPY:

        Biologic therapy

          -  Not specified

        Chemotherapy

          -  No prior neoadjuvant or adjuvant chemotherapy

               -  Neoadjuvant or adjuvant trastuzumab (Herceptin®) allowed

        Endocrine therapy

          -  No prior neoadjuvant or adjuvant endocrine therapy after breast cancer diagnosis

          -  No prior tamoxifen or other selective estrogen-receptor modulator (e.g., raloxifene)
             within 1 year before the breast cancer diagnosis

          -  No other concurrent oral or transdermal hormonal therapy, including any of the
             following:

               -  Estrogen

               -  Progesterone

               -  Androgens

               -  Aromatase inhibitors

               -  Hormone replacement therapy

               -  Oral or other hormonal contraceptives, including implant and depot injections

               -  Raloxifene or other selective estrogen-receptor modulators

        Radiotherapy

          -  See Disease Characteristics

          -  No prior ovarian irradiation

        Surgery

          -  See Disease Characteristics

          -  No prior bilateral oophorectomy

        Other

          -  No other prior neoadjuvant therapy

          -  No other concurrent investigational agents

          -  No concurrent bisphosphonates unless bone density has been documented at least 1.5
             standard deviations below the young adult normal mean or the patient is participating
             in a randomized clinical trial setting testing bisphosphonates in the adjuvant breast
             cancer setting