- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00324714
Risedronate in Improving Bone Mineral Density and Bone Health in Postmenopausal Women With Ductal Carcinoma In Situ Enrolled in Clinical Trial CRUK-IBIS-II-DCIS
A Randomised, Double-Blind Trial to Assess the Effects on Bone Mineral Density and Bone Biomarkers of Anastrozole When Used to Prevent Breast Cancer in Postmenopausal Women
RATIONALE: Bisphosphonates, such as risedronate, may help improve bone health and prevent osteoporosis in postmenopausal women. It is not yet known whether risedronate is effective in improving bone mineral density and bone health in women with ductal carcinoma in situ.
PURPOSE: This randomized phase III trial is studying risedronate to see how well it works compared to a placebo in improving bone mineral density and bone health in postmenopausal women with ductal carcinoma in situ enrolled in clinical trial CRUK-IBIS-II-DCIS (CRUK: Cancer Research UK) (DCIS: Ductal carcinoma in situ).
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
OBJECTIVES:
Primary
- Compare the changes in bone of the spine and femur in postmenopausal women with ductal carcinoma in situ treated with anastrozole vs placebo on protocol CRUK-IBIS-II-DCIS.
- Determine the effect of bisphosphonate treatment on bone mineral density and bone metabolism in patients who are receiving anastrozole on protocol CRUK-IBIS-II-DCIS and are osteoporotic or moderately to severely osteopenic at baseline.
Secondary
- Correlate changes in levels of biochemical markers of bone metabolism with longer-term changes in bone mineral density, as measured by dual-energy x-ray absorptiometry (DXA).
OUTLINE: This is a multicenter, partially randomized, double-blind study. Patients are stratified according to bone mineral density (T-score) measurements (≥ -1.5 vs -2.5 to < -1.5 vs -4.0 to < -2.5 or ≤ 2 low-trauma vertebral fractures). Patients in stratum I are further stratified according to calcium and cholecalciferol (vitamin D) supplementation (yes vs no) and use of risedronate on this study (yes vs no). Patients in stratum II are further stratified according to randomized treatment on protocol CRUK-IBIS-II-DCIS (yes vs no).
- Stratum I (T-score ≥ -1.5): Patients undergo dual-energy x-ray absorptiometry (DXA) scanning at baseline and then at 1, 3, 5, and 7 years. Patients who develop osteoporosis (T-score < -2.5) are removed from the study and receive open-label bisphosphonates.
Stratum II (T-score -2.5 to < -1.5 [moderate to severe osteopenia]): Patients undergo DXA scanning as in stratum I. Patients are also randomized (double-blind) to 1 of 2 treatment arms.
- Arm I: Patients receive oral risedronate once a week for 5 years.
- Arm II: Patients receive oral placebo once a week for 5 years. Patients in either arm who develop osteoporosis AND a drop in T-score of more than 1 unit are removed from the study and receive open-label bisphosphonates.
- Stratum III (T-score -4.0 to < -2.5 OR ≤ 2 low trauma vertebral fractures [osteoporosis]): Patients undergo DXA scanning as in stratum I. Patients also receive oral risedronate (or their current bisphosphonate) once a week for 5 years.
Blood samples for correlative studies (e.g., bone biomarkers, serum estradiol) are collected at baseline and at 6 and 12 months.
After completion of study treatment, patients are followed periodically.
PROJECTED ACCRUAL: A total of 1,000 patients will be accrued for this study.
Study Type
Phase
- Phase 3
Contacts and Locations
Study Locations
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-
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Bern, Switzerland, CH-3010
- Inselspital Bern
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Bern, Switzerland, CH-3012
- Oncocare Sonnenhof-Klinik Engeriedspital
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-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
DISEASE CHARACTERISTICS:
Diagnosis of ductal carcinoma in situ within the past 6 months
- Locally excised with tumor-free margins at least 1 mm
- Currently enrolled in protocol CRUK-IBIS-II-DCIS AND randomized to receive either anastrozole or placebo
- No T-score < -4.0 and/or > 2 low trauma vertebral fractures by dual-energy x-ray absorptiometry (DXA)
- Hormone receptor status: Estrogen or progesterone receptor positive tumor
PATIENT CHARACTERISTICS:
- Female patient
- Postmenopausal
- No prior bilateral hip fracture or bilateral hip prostheses
No concurrent metabolic bone disease, including any of the following:
- Paget's disease
- Osteogenesis imperfecta
- Disorders of calcium or mineral metabolism
- Renal calculus
- Malabsorption
- Hypercalcemia or hypocalcemia
- Hyperparathyroidism or hypoparathyroidism
Hyperthyroidism or hypothyroidism
- Patients on stable replacement therapy are allowed provided they are euthyroid
PRIOR CONCURRENT THERAPY:
More than 12 months since prior medication affecting bone metabolism, including any of the following:
- Estrogen
- Any bisphosphonate
- Parathyroid hormone
- Calcitonin
- Oral or systemic glucocorticoids
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Supportive Care
- Allocation: Randomized
- Masking: Double
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
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Spine and femur bone change comparison
|
Effects of bisphosphonate on bone mineral density and bone metabolism in patients who were osteoporotic or moderately severe osteopenic at baseline
|
Secondary Outcome Measures
Outcome Measure |
---|
Correlation of changes in levels of biochemical markers of bone metabolism with longer-term changes in bone mineral density as measured by dual-energy x-ray absorptiometry (DXA)
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Katharina S. Buser, MD, Oncocare Sonnenhof-Klinik Engeriedspital
Publications and helpful links
General Publications
- Singh S, Cuzick J, Edwards R, et al.: Effect of anastrozole on bone mineral density after one year of treatment: results from bone sub-study of the International Breast Cancer Intervention Study (IBIS-II). [Abstract] Breast Cancer Res Treat 106 (1): A-28, S9, 2007.
Study record dates
Study Major Dates
Study Start
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Metabolic Diseases
- Skin Diseases
- Neoplasms by Histologic Type
- Neoplasms
- Neoplasms by Site
- Carcinoma
- Neoplasms, Glandular and Epithelial
- Breast Diseases
- Musculoskeletal Diseases
- Bone Diseases
- Bone Diseases, Metabolic
- Carcinoma in Situ
- Breast Neoplasms
- Osteoporosis
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Membrane Transport Modulators
- Bone Density Conservation Agents
- Calcium-Regulating Hormones and Agents
- Calcium Channel Blockers
- Risedronic Acid
Other Study ID Numbers
- CDR0000474949
- EUDRACT-2004-003991-12
- IBCSG-31-03-PBS
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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