Status:
COMPLETED
Zoledronate in Preventing Bone Loss in Postmenopausal Women Who Are Receiving Letrozole for Stage I, Stage II, or Stage IIIA Breast Cancer
Lead Sponsor:
Alliance for Clinical Trials in Oncology
Collaborating Sponsors:
National Cancer Institute (NCI)
Conditions:
Breast Cancer
Osteoporosis
Eligibility:
FEMALE
18+ years
Phase:
PHASE3
Brief Summary
RATIONALE: Estrogen can cause the growth of breast cancer cells. Hormone therapy using letrozole may fight breast cancer by lowering the amount of estrogen the body makes. Zoledronate may prevent bone...
Detailed Description
OBJECTIVES: * Compare the effectiveness of zoledronate vs standard care in reducing bone loss during the first 12 months of study treatment in postmenopausal women with stage I-IIIA breast cancer ini...
Eligibility Criteria
Inclusion
- DISEASE CHARACTERISTICS:
- Diagnosis of breast cancer
- Stage I, II, or IIIA disease
- Completed ≤ 6 years of adjuvant tamoxifen therapy
- Total baseline lumbar spine or femoral neck bone mineral density T-score below -2.0 standard deviation (e.g., a patient with a T-score of -2.1 in ineligible; a patient with a T-score of -1.9 is eligible)
- No clinical or radiological evidence of recurrent or metastatic disease
- Hormone receptor status:
- Estrogen receptor- and/or progesterone receptor-positive
- PATIENT CHARACTERISTICS:
- Age
- Postmenopausal
- Sex
- Female
- Menopausal status
- Postmenopausal, defined by 1 of the following:
- Over 55 years of age with cessation of menses
- 55 years of age and under with spontaneous cessation of menses for \> 1 year
- 55 years of age and under with spontaneous cessation of menses for ≤ 1 year, but amenorrheic (e.g., spontaneous or secondary to hysterectomy) with postmenopausal estradiol levels (\< 5 ng/dL)
- Undergone bilateral oophorectomy
- Performance status
- ECOG 0-2
- Life expectancy
- At least 5 years
- Hematopoietic
- WBC ≥ 3,000/mm\^3
- Platelet count ≥ 100,000/mm\^3
- Hepatic
- Alkaline phosphatase ≤ 3 times upper limit of normal (ULN)
- AST ≤ 3 times ULN
- Renal
- Creatinine \< 2.0 mg/dL
- No hypercalcemia (i.e., calcium \> 1 mg/dL above ULN within the past 6 months)
- No hypocalcemia (i.e., calcium \> 0.5 mg/dL below lower limit of normal within the past 6 months)
- Other
- No uncontrolled infection
- No uncontrolled diabetes mellitus
- No uncontrolled thyroid dysfunction
- No disease affecting bone metabolism (e.g., hyperparathyroidism, hypercortisolism, Paget's disease, or osteogenesis imperfecta)
- No malabsorption syndrome
- No uncontrolled seizure disorder associated with falls
- No known hypersensitivity to zoledronate or other bisphosphonates, letrozole, calcium, or cholecalciferol (vitamin D)
- No mental illness that would preclude giving informed consent
- No other malignancy within the past 5 years except adequately treated basal cell or squamous cell skin cancer or carcinoma in situ of the cervix
- No other non-malignant systemic disease
- No clinical or radiologic evidence of existing fracture in the lumbar spine and/or total hip
- No history of fracture with low intensity or not associated with trauma
- No contraindication to spinal dual energy x-ray absorptiometry (DEXA) due to any of the following:
- History of surgery at the lumbosacral spine, with or without implantable devices
- Scoliosis with a Cobb angle \> 15° at the lumbar spine
- Immobility, hyperostosis, or sclerotic changes at the lumbar spine
- Evidence of sufficient sclerotic abdominal aorta that would interfere with DEXA scan
- Any disease of the spine that would preclude proper acquisition of a lumbar spine DEXA
- Considered reliable
- PRIOR CONCURRENT THERAPY:
- Biologic therapy
- Not specified
- Chemotherapy
- No concurrent chemotherapy
- Endocrine therapy
- See Disease Characteristics
- Prior parathyroid hormone allowed provided it was not administered for \> 1 week
- More than 6 months since prior anabolic steroids or growth hormone
- More than 12 months since prior endocrine therapy (including estrogen) except for the following:
- Tamoxifen
- Insulin
- Oral hypoglycemics
- Thyroid hormone
- Steroid inhalers
- More than 12 months since prior systemic corticosteroids except short-term corticosteroids to prevent or treat chemotherapy-induced nausea and vomiting or acute respiratory illness
- Concurrent short-term corticosteroids allowed
- No other concurrent hormonal therapy
- No concurrent parathyroid hormone
- Radiotherapy
- Not specified
- Surgery
- Not specified
- Other
- Prior systemic sodium fluoride allowed provided it was not administered for \> 3 months within the past 2 years
- More than 3 weeks since prior oral bisphosphonates
- More than 2 weeks since prior and no concurrent drugs known to affect the skeleton (e.g., calcitonin, mithramycin, or gallium nitrate)
- More than 30 days since prior systemic investigational drugs and/or devices
- More than 7 days since prior topical investigational drugs
- No prior IV bisphosphonates
- No prior aromatase inhibitor therapy
- No concurrent calcitonin, sodium fluoride, or Tibolone
- No other concurrent anticancer therapy
- No other concurrent bisphosphonates
- No other concurrent investigational drugs or devices
Exclusion
Key Trial Info
Start Date :
January 1 2005
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
August 1 2012
Estimated Enrollment :
558 Patients enrolled
Trial Details
Trial ID
NCT00107263
Start Date
January 1 2005
End Date
August 1 2012
Last Update
December 6 2016
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