S1207 Hormone Therapy With or Without Everolimus in Treating Patients With Breast Cancer
S1207 Hormone Therapy With or Without Everolimus in Treating Patients With Breast Cancer
RATIONALE: Estrogen can cause the growth of breast cancer cells. Hormone therapy using
 tamoxifen citrate, goserelin acetate, leuprolide acetate, anastrozole, letrozole, or
 exemestane, may fight breast cancer by lowering the amount of estrogen the body makes.
 Everolimus may stop the growth of tumor cells by blocking some of the enzymes needed for cell
 growth. It is not yet know whether hormone therapy is more effective when given with or
 without everolimus in treating breast cancer.

 PURPOSE: This randomized phase III trial studies how well giving hormone therapy together
 with or without everolimus work in treating patients with breast cancer.
OBJECTIVES:

 Primary

 -  To compare whether the addition of one year of everolimus (10 mg daily) to standard
 adjuvant endocrine therapy improves invasive disease-free survival (IDFS) in patients
 with high-risk, hormone-receptor (HR)-positive, and human epidermal growth factor
 receptor (HER)2-negative breast cancer.

 Secondary

 -  To compare whether the addition of one year of everolimus to standard adjuvant endocrine
 therapy improves overall survival (OS) and distant recurrence-free survival (DRFS) in
 this patient population.

 -  To evaluate the safety, toxicities, and tolerability of one year of everolimus in
 combination with standard adjuvant endocrine therapy and to compare it with standard
 adjuvant endocrine therapy plus placebo in this patient population.

 -  To determine whether the benefit of one year of everolimus use in addition to standard
 adjuvant endocrine therapy varies by recurrence score (RS), nodal status, or other
 commonly used prognostic factors.

 -  To evaluate adherence to 1-year treatment of everolimus in comparison to placebo in
 addition to standard adjuvant endocrine therapy in this patient population.

 -  To collect specimens in order to evaluate biomarkers of therapeutic efficacy.
 (exploratory)

 OUTLINE: This is a multicenter study. Patients are stratified according to risk level
 (node-negative and recurrence score [RS] > 25 in the primary tumor, and a tumor measuring ≥ 2
 cm in greatest diameter treated with adjuvant therapy vs 1-3 positive lymph nodes and RS > 25
 treated with adjuvant therapy vs ≥ 4 positive lymph nodes [any RS value] treated with
 adjuvant therapy vs ≥ 4 positive lymph nodes [any RS value] prior to or after neoadjuvant
 chemotherapy). Patients are randomized to 1 of 2 treatment arms.

 -  Arm I: Patients receive an approved endocrine therapy comprising tamoxifen citrate*,
 goserelin acetate** or leuprolide acetate**, or aromatase inhibitor (anastrozole,
 letrozole, or exemestane) for 2-5 years. Patients also receive a placebo orally (PO)
 daily for 1 year in the absence of disease progression or unacceptable toxicity.

 -  Arm II: Patients receive an approved endocrine therapy regimen as in arm I. Patients
 also receive everolimus PO daily for 1 year in the absence of disease progression or
 unacceptable toxicity.

 NOTE: *Men receive tamoxifen citrate PO for 5 years.

 NOTE: **Goserelin acetate or leuprolide acetate is given if patient is or becomes
 postmenopausal.

 Blood and tissue samples are collected for biomarker studies.

 After completion of study treatment, patients are followed up every 6 months for 2 years and
 then yearly thereafter for 10 years.
DISEASE CHARACTERISTICS:

 -  Patients must have a histologically confirmed diagnosis of invasive breast carcinoma
 with positive estrogen (ER)- and/or progesterone-receptor (PR) status, and negative
 human epidermal growth factor receptor (HER)2, for whom standard adjuvant endocrine
 therapy is planned

 -  ER and PR positivity must be assessed according to American Society of Clinical
 Oncology (ASCO)/College of American Pathologists (CAP) guidelines as either ER or
 PR ≥ 1% positive nuclear staining

 -  HER2 test result negativity must be assessed as per ASCO/CAP 2013 guidelines
 using IHC, ISH or both.

 HER2 is negative if a single test (or all tests) performed in a tumor specimen show:

 1. IHC negative (0 or 1+)

 2. ISH negative using single probe or dual probe. If IHC is 2+, evaluation for gene
 amplification (ISH) must be performed and the ISH must be negative; ISH is not
 required if IHC is 0 or 1+.

 HER2 equivocal is not eligible.

 -  Patients must not have metastatic breast cancer (stage IV disease); patients with
 multifocal, multicentric, and synchronous bilateral, and primary inflammatory breast
 cancers are allowed

 -  Multifocal disease is defined as more than one invasive cancer < 2 cm from the
 largest lesion within the same breast quadrant

 -  Multicentric disease is defined as more than one invasive cancer ≥ 2 cm from the
 largest lesion within the same breast quadrant or more than one lesion in
 different quadrants

 -  Synchronous bilateral disease is defined as invasive breast cancer with positive
 lymph nodes (axillary or intramammary) in at least one breast, diagnosed within
 30 days of each other

 -  Patients must be high risk by belonging to one of the following risk groups:

 -  Completion of adjuvant chemotherapy and pathologically negative axillary nodes,
 and a tumor measuring ≥ 2 cm in greatest diameter, and an Oncotype DX® recurrence
 score (RS) > 25 (completed as standard of care). Patients with micrometastases as
 the only nodal involvement (pN1mi) are eligible, and will be categorized as
 node-negative.

 -  Completion of adjuvant chemotherapy, and pathologically 1-3 positive lymph nodes,
 and either an Oncotype DX® RS > 25 (screened via S1007 or otherwise) or tumor
 tissue with pathological Grade III following local practice. If Oncotype DX is
 done, then RS must be > 25. If the test is not done, but the patient has Grade
 III disease then the patient is eligible and Oncotype DX does not need to be
 performed.

 -  Completion of adjuvant chemotherapy and pathologically 4 or more positive lymph
 nodes.

 -  Completion of neoadjuvant chemotherapy and 1 or more positive nodes
 pathologically determined prior to or after chemotherapy

 -  Patients must have completed either breast-conserving surgery or total mastectomy,
 with negative margins and appropriate axillary staging; a negative margin is defined
 as no evidence of tumor or ductal carcinoma in situ (DCIS) at the line of resection;
 additional operative procedures may be performed to obtain clear margins

 -  Patients who had breast-conserving surgery must have completed whole-breast
 radiation; use of regional nodal-basin radiation will be at the discretion of the
 investigator according to institutional guidelines

 -  Patients with ≥ 4 positive lymph nodes must have completed breast/chest wall and
 nodal-basin radiation therapy according to standard-of-care guidelines before
 randomization; omission of radiation therapy is not allowed in this high-risk
 population of patients

 -  Patients must be registered no sooner than 21 days after completion of radiation
 therapy and must have recovered (≤ grade 1) from any of the effects of radiation

 -  Patients must have undergone axillary staging by sentinel-node biopsy or axillary
 lymph node dissection (ALND)

 -  For patients with 1-3 positive lymph nodes, sentinel-node biopsy alone is allowed
 provided that the patient completed either whole-breast or chest-wall radiation
 and the primary tumor is < 5 cm

 -  All patients with ≥ 4 positive lymph nodes must have completed ALND (with or
 without prior sentinel-node biopsy)

 PATIENT CHARACTERISTICS:

 -  Absolute Neutrophil Count ≥ 1,500/mL

 -  Hemoglobin ≥ 9 g/dL

 -  Platelet count ≥ 100,000/mL

 -  Bilirubin ≤ 1.5 mg/dL (≤ 3.0 mg/dL if due to Gilbert syndrome)

 -  Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤ 1.5 times
 institutional upper limit of normal (IULN)

 -  Alkaline phosphatase ≤ 1.5 times IULN

 -  Serum creatinine level ≤ IULN

 -  Fasting cholesterol ≤ 300 mg/dL and triglycerides ≤ 2.5 times IULN; patients may be on
 lipid-lowering agents to reach these values

 -  Patients must have a performance status of 0-2 by Zubrod criteria

 -  Patients must not have any grade III/IV cardiac disease as defined by the New York
 Heart Association Criteria (i.e., patients with cardiac disease resulting in marked
 limitation of physical activity or resulting in inability to carry on any physical
 activity without discomfort), unstable angina pectoris, myocardial infarction within 6
 months, or serious uncontrolled cardiac arrhythmia

 -  Patients previously diagnosed with diabetes must not have uncontrolled diabetes
 (defined as a hemoglobin [Hg] A1C > 7% within 28 days prior to registration)

 -  Patients known to be human immunodeficiency virus (HIV) positive may be enrolled if
 baseline CD4 count is > 500 cells/mm³ and they are not taking anti-retroviral therapy

 -  Patients with known hepatitis are not eligible

 -  Patients must not have any known uncontrolled, underlying pulmonary disease

 -  Patients must be able to take oral medications

 -  Patients may not have any impairment of gastrointestinal function or gastrointestinal
 disease that may significantly alter the absorption of blinded drug (e.g., ulcerative
 disease, uncontrolled nausea, vomiting, diarrhea, malabsorption syndrome, or small
 bowel resection)

 -  Patients must not be pregnant or nursing

 -  Women/men of reproductive potential must have agreed to use an effective non-hormonal
 contraceptive method during and for 8 weeks after completion of study therapy

 -  In addition to routine contraceptive methods, "effective contraception" also
 includes heterosexual celibacy and surgery intended to prevent pregnancy (or with
 a side-effect of pregnancy prevention) defined as a hysterectomy, bilateral
 oophorectomy, or bilateral tubal ligation; corresponding procedures for men
 include castration, vasectomy, and barrier-contractive devices

 -  If at any point a previously celibate patient chooses to become heterosexually
 active during the protocol therapy, he/she is responsible for beginning
 contraceptive measures

 -  No other prior malignancy is allowed except for adequately treated basal cell or
 squamous cell skin cancer, in situ cervical cancer, or other cancer for which the
 patient has been disease-free for 5 years

 PRIOR CONCURRENT THERAPY:

 -  See Disease Characteristics

 -  Patients must have completed standard neoadjuvant or adjuvant chemotherapy prior to
 randomization; completion of chemotherapy will be determined by the treating
 oncologist, but should include a minimum of 4 cycles (a cycle of weekly paclitaxel is
 considered 3 doses); patients must be registered within 42 weeks after the last dose
 of chemotherapy; patients may have started endocrine therapy at any time after the
 diagnosis of the current breast cancer

 -  Patients must not be receiving or planning to receive trastuzumab

 -  Concurrent bisphosphonate therapy is allowed

 -  Patients must not have prior exposure to mTOR inhibitors (rapamycin, everolimus,
 temsirolimus, deforolimus)

 -  Patients must not have prior treatment with any investigational drug within the
 preceding 28 days and must not be planning to receive any other investigational drug
 for the duration of the study

 -  Patients must not be planning to receive any other anticancer drug for the duration of
 the study

 -  Patients must not have an organ allograft or other history of immune compromise;
 patients must not be receiving chronic, systemic treatment with corticosteroids or
 other immunosuppressive agent; topical or inhaled corticosteroids are allowed

 -  Patients must not have received immunization with an attenuated live vaccine (e.g.,
 intranasal influenza, measles, mumps, and rubella [MMR], oral polio, varicella,
 zoster, yellow fever, and Bacillus Calmette-Guérin [BCG] vaccines) within seven days
 prior to registration nor have plans to receive such vaccination while on protocol
 treatment

 -  Patients must not have taken within 14 days prior to registration, be taking, nor plan
 to take while on protocol treatment, strong cytochrome P450 3A4 (CYP3A4) inhibitors
 and/or CYP3A4 inducers