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The Prevention of Osteoporosis in Premenopausal and Newly Postmenopausal (Up to 8 Years) Women With Breast Cancer Following Chemotherapy (REBBeCA Study)

This study has been completed.
Procter and Gamble
Aventis Pharmaceuticals
Information provided by (Responsible Party):
Susan L. Greenspan, University of Pittsburgh Identifier:
First received: June 30, 2005
Last updated: August 10, 2015
Last verified: August 2015

The purpose of this study is to evaluate the effectiveness of once weekly risedronate in the prevention and treatment of bone loss in premenopausal and newly menopausal women with breast cancer who have received chemotherapy.

The hypothesis is that bisphosphonate therapy will prevent bone loss at clinically relevant sites, such as the hip and spine. The investigators also hypothesize that there will be a correlation between biochemical markers of bone turnover and changes in bone mineral density.

Condition Intervention
Drug: risedronate (including placebo)

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: Double Blind (Participant, Care Provider, Investigator)
Primary Purpose: Prevention
Official Title: The Prevention of Osteoporosis in Premenopausal and Newly Postmenopausal (Up to 8 Years) Women With Breast Cancer Following Chemotherapy (REBBeCA Study)

Resource links provided by NLM:

Further study details as provided by University of Pittsburgh:

Primary Outcome Measures:
  • That bone loss, as determined through BMD every six months, will be prevented at clinically relevant sites, such as the hip & spine, through the use of bisphosphonate therapy in study subjects. [ Time Frame: 24 months ]

Secondary Outcome Measures:
  • There will be a correlation between biochemical markers of bone turnover and changes in BMD. [ Time Frame: 24 months ]

Enrollment: 87
Study Start Date: May 2003
Study Completion Date: July 2006
Primary Completion Date: July 2006 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: A
Group A will receive active study drug
Drug: risedronate (including placebo)
risedronate 35mg weekly
Other Name: Actonel

Detailed Description:

Breast cancer is a significant public health problem accounting for approximately 30% of new cancers diagnosed annually. Much advancement has been made in the treatment of these cancers which has significantly decreased the mortality rates. Treatment, including adjuvant chemotherapy and hormonal therapy, prolongs disease free survival and overall survival of patients with breast cancer. The cytotoxic drugs, however, can cause premature ovarian failure and subsequent menopause. This risk has been reported to range from 53% to 89%. Temporary or permanent chemotherapy induced ovarian failure is important because of potential bone loss associated with the estrogen loss. Initiating a potent antiresorptive agent, risedronate, should prevent or improve bone mass in these women.

Comparison: The investigators will compare bone mass/markers of study subjects receiving risedronate with study subjects receiving placebo. All subjects will be provided calcium and vitamin D supplementation as needed.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Pre- and newly postmenopausal (up to 8 years) women ages 18 and older
  • Breast cancer treated with chemotherapeutic agents, with or without tamoxifen/aromatase inhibitors
  • Negative pregnancy test

Exclusion Criteria:

  • Stage 4 breast cancer
  • Any illness or medications known to affect bone metabolism
  • History of osteoporosis or history of vertebral or hip fractures
  • Kidney stones in the past 5 years
  • Active peptic ulcer disease
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Please refer to this study by its identifier: NCT00118508

United States, Pennsylvania
University of Pittsburgh Medical Center (GCRC)
Pittsburgh, Pennsylvania, United States, 15213
Sponsors and Collaborators
University of Pittsburgh
Procter and Gamble
Aventis Pharmaceuticals
Principal Investigator: Susan L Greenspan, MD University of Pittsburgh
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Susan L. Greenspan, Principal Investigator, University of Pittsburgh Identifier: NCT00118508     History of Changes
Other Study ID Numbers: IRB#0404173
Study First Received: June 30, 2005
Last Updated: August 10, 2015

Additional relevant MeSH terms:
Bone Diseases, Metabolic
Bone Diseases
Musculoskeletal Diseases
Risedronate Sodium
Calcium Channel Blockers
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action
Bone Density Conservation Agents
Physiological Effects of Drugs processed this record on May 25, 2017