Please select the eligibility criteria that correspond to the clinical trial below.
Title: N/A
Brief Summary: To address cardiovascular disease, cancer, and osteoporosis, the most common causes of death, disability, and impaired quality of life in postmenopausal women. The three major components of the WHI are: a randomized controlled clinical trial of hormone replacement therapy (HRT), dietary modification (DM), and calcium/vitamin D supplementation (CaD); an observational study (OS); and a community prevention study (CPS). On October 1, 1997, administration of the WHI was transferred to the NHLBI where it is conducted as a consortium effort led by the NHLBI in cooperation with the National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), the National Cancer Institute (NCI), and the National Institute on Aging (NIA).


Options:
A: Inclusion Criteria:

1. All patients must have signed and dated an informed consent form
2. Patients must be female
3. Primary invasive breast cancer pathologically approved by core needle or open biopsy
4. Ipsilateral axillary or internal mammary nodes positive, or tumor size is equal to or larger than 4cm. Definition of nodes positive is according to the staging system of AJCC 6th edition (American Joint Cancer Commission) for breast carcinoma. The micrometastasis must be at least 0.2mm
5. Patients must have undergone standard surgery for primary breast cancer as shown in the following:

   * a standard radical mastectomy or modified mastectomy
   * standard breast conservation surgery (BCS), which is lumpectomy or qaudrantectomy accompany with axillary dissection, and the surgical margins of the resected specimen must be negative. BCS must be followed by standardized adjuvant radiotherapy to the partial conserved breast (delivered after adjuvant chemotherapy completed)
   * Treatment for confirmed breast cancer including the surgery modality listed above, loco-regional radiotherapy after lumpectomy, adjuvant radiotherapy to the chest wall and/or internal mammary nodes and/or supraclavicular lymph nodes, adjuvant chemotherapy
6. adjuvant endocrine therapy of TAM or Fareston must be started within 6 weeks when adjuvant chemotherapy or radiotherapy was finished
7. The date of randomization must be processed after taking TAM or Fareston for 2 or more than 2 years, but not more than 3 years of time
8. Patients taking neo-chemotherapy are eligible, and lymph node status could be identified during surgery before neo-adjuvant chemotherapy or after neo-adjuvant chemotherapy. The definition of lymph node positive is:

   * evaluation of lymph node status before neo-adjuvant chemotherapy must include pathological axillary nodes, internal mammary nodes (pN2b option) or supraclavicular nodes (pN3c option) involved. Micro-metastasis (i.e.≥0.2mm, pN1-pN3c) can be identified by the following method: fine needle aspiration (FNA) or sentinel node biopsy (SNB) or sampling/ total procedure of axillary dissection
   * patients with no nodes positive after neo-adjuvant chemotherapy, lymph node positive must be evaluated during surgery. Its definition was the either of following:

     * According the clinical practice guidelines of the local cancer center, it is acceptable when positive nodes was identified by SNB or axillary dissection
     * There is pathological evidence in lymph nodes positive (pN1-pN3c) during breast surgery after neo-adjuvant chemotherapy
9. Patients diagnosed as occult breast cancer clinically are found to pathologically have primary invasive carcinoma or DCIS with micro-invasive lesion in ipsilateral breast, and primary lesion or axillary node metastasis express ER and/or PR positive
10. Patients with synchronous bilateral cancers are eligible on the condition that If one side is IDC and the other side is DCIS, the IDC side should be of the ER and/or PR positive phenotype and IF two sides are both IDC, they must be ER and/or PR positive phenotype at the same time
11. Hormone receptor positive (≥＋) is defined as detecting ER or PR expression at any time is eligible. The situation of only PR positive and ER negative is eligible, too
12. According to the standard operation principles for clinical practice of local cancer center, patients must be randomized within 4 weeks after definitive physical examination, imaging examination and laboratory testing show no evidence of recurrence or metastasis
13. Based on the study objective, all patients are required to be premenopausal as defined by

    * menstruating actively
    * less than 6 months since last menstrual period (LMP), or patients younger than 40 years of age who became amenorrheic not more than 1 year if the serum free E2、FSH and LH level was premenopausal (according to the reference value of local center).
    * had previous hysterectomy with one or both ovaries left intact are eligible if the serum free E2、FSH and LH level are premenopausal (according to the reference value of local center).
14. patients must have an ECOG performance status of 0 or 1 (0-fully active, able to carry on all pre-disease performance without restriction, 1-restricted in physical strenuous actively but ambulatory)
15. leucocyte count must be ≥3.0\*10\^9/L and platelet count must be ≥100\*10\^9/L
16. AST/SGOT or ALT/AGPT must be \<3 times the ULN
17. serum creatinine must be \<2 times the ULN
18. patients can swallow pills
19. pregnancy testing is negative and are willing to do contraception during the treatment period

Exclusion Criteria:

1. patients with metastatic malignant tumor
2. previous history of asynchronous bilateral breast cancer
3. any previous malignancy in the past 5 years, except for those treated with curative intent, such as carcinoma in situ of the cervix, squamous carcinoma of the skin or basal cell carcinoma of the skin
4. any non-malignant systemic disease which interfere long time follow up
5. history of medical ovarian ablation therapy
6. history of AI therapy
7. severe live dysfunction, Child-Pugh is grade C
8. Occult breast cancer is found pathologically no IDC lesion or only DCIS without micro-invasive lesion in the ipsilateral breast
9. patients with Her-2 overexpression had used, or is using, or intending to use adjuvant trastuzumab
10. severe heart dysfunction, heart functional classification is above Class III Table 2 Child-Pugh score of hepatic cirrhosis
B: Inclusion Criteria:

* provision of informed consent
* histologically proven HR+ operable invasive breast cancer
* completion of surgery and chemotherapy(if given).
* women defined as pre- or perimenopausal according to all of the following: aged 50 years or younger, at least one menstrual period during the last months.

Exclusion Criteria:

* clinical evidence of metastatic disease
* pregnancy or breast-feeding
* bilateral oophorectomy;
* radiation of the ovaries
* patients who, for whatever reason(eg, confusion, infirmity,alcoholism),are unlikely to comply with trial requirements
* patients whose chemotherapy was started more than 8 weeks after completion of primary surgery or whose chemotherapy was completed more than 8 weeks before starting the study treatment. Chemotherapy, if given, should have been given post-operatively, ie, patients who received neoadjuvant chemotherapy are ineligible
* patients who have not received chemotherapy and whose primary surgery was completed more than 8 weeks before starting the study treatment
* previous hormonal therapy as adjuvant treatment for breast cancer
* patients unwilling to stop taking any drug known to affect sex hormonal status, or in whom it would be inappropriate to stop
* previous history of invasive malignancy within the last 5 years, other than squamous or basal cell carcinoma of the skin or carcinoma in situ of the cervix, adequately cone biopsied
* treatment with a non-approved or experimental drug during 1 month before entry into the study
* history of hypersensitivity to active or inactive excipients of tamoxifen and Zoladex
* history of bleeding diathesis (ie. Disseminated intravascular coagulation, clotting factor deficiency), or long term anticoagulant therapy (other than antiplatelet therapy and low dose warfarin )
* leukopenia and/or thrombocytopenia
* history of ocular fundus diseases
* history of thromboembolic diseases
C: Inclusion Criteria:

1. Patients must have undergone excision of the primary breast mass, proven histologically to be invasive breast adenocarcinoma.
2. Patients must be within 3 months after the last cycle of chemotherapy.
3. Patients must have the history of normal menstruation prior to the start of chemotherapy.
4. Stage I, II or III
5. Woman, less than or equal to 45 years of age
6. Hormone receptor status : ER+ve and/or PgR+ve
7. WHO performance status 0, 1 or 2.
8. Patients who were treated with cytotoxic chemotherapy in pre- or post- surgery.
9. Adequate haematological function defined by haemoglobin 10g/dL, neutrophil count 1.5x109/L and platelets 100x109/L.
10. Adequate hepatic function defined by AST and ALT 2.5xupper limit of normal. Alkaline phosphatase 5xupper limit of normal, unless bone metastases in the absence of liver disease. Renal function adequate defined by creatinine\<175mmol/L.

Exclusion Criteria:

1. Patients whose primary breast cancer was classified as:

   * ER(-),ER unknown
2. Patients with the history of hysterectomy or oophorectomy
3. Sarcomas or squamous cell carcinomas of the breast are not eligible.
4. Patients with malignancies (other than breast cancer) within the last 5 years, except for adequately treated in situ carcinoma of the cervix or basal cell / squamous cell carcinoma of the skin.
5. Investigational drugs given within the previous 4 weeks.
6. Patients known to be on any unlicensed non-cancer investigational agent.
7. Patients with thrombocytopaenia (platelets \<100 x 109/l or on anti- coagulant therapy (contra-indicated due to risk of bleeding with i.m. injection of Zoladex).
8. Patients treated with CMF(cyclophosphamide/methotrexate/5-fluorouracil) as prior chemotherapy
9. Patients who are pregnant or lactating are ineligible.
D: Postmenopausal women ages 50 to 79.

Answer: D