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Combined Estrogen Blockade of the Breast With Exemestane and Raloxifene in Postmenopausal Women With a History of Breast Cancer Who Have No Clinical Evidence of Disease

NCT00200174 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 11

Last updated 2023-07-05

No results posted yet for this study

Summary

The purpose of this research study is to learn about the effects of two drugs when they are given together. The names of the drugs are raloxifene and exemestane.

Raloxifene is a drug that is related to estrogen. In the liver and bone, it acts like estrogen. In the breast and uterus it acts like an anti-estrogen. It has been used in postmenopausal women to prevent a disease called osteoporosis. This is a disease that decreases bone strength over many years and may finally lead to bone fractures. In a group of women who were taking the drug, it also seemed to decrease the chances of breast cancer and possibly endometrial cancer (cancer of the uterus). Therefore, we want to study it further to see if it prevents breast cancer. We also want to find out if it may be even better in preventing breast cancer if it is given with another drug.

The other drug in this trial is exemestane. Exemestane is a type of drug that works to decrease estrogen levels in postmenopausal women. This type of drug is used in women for the treatment of breast cancer. Before we can decide if the two drugs combined are better for preventing breast cancer, we must first test these drugs together to make sure that they are safe. This safety testing is the purpose of this trial.

Conditions

Interventions

DRUG

Raloxifene followed by combination therapy

Patients will be randomized to either Raloxifene at 60mg P.O. (each day) for 2 weeks (time designated: week- 2) After two weeks of single agent therapy, patients will be started on combination therapy with oral raloxifene (60mg/day) and oral exemestane (25mg/day) (time designated week 0), and continued on both drugs for one year (month 12). Patients will be required to start supplemental calcium (900-1500 mg/day) plus vitamin D (400-600 units/day) P.O. each day during week 0.

DRUG

Exemestane followed by combination therapy

Patients will be randomized to Exemestane at 25mg P.O. for 2 weeks (time designated: week- 2) After two weeks of single agent therapy, patients will be started on combination therapy with oral raloxifene (60mg/day) and oral exemestane (25mg/day) (time designated week 0), and continued on both drugs for one year (month 12). Patients will be required to start supplemental calcium (900-1500 mg/day) plus vitamin D (400-600 units/day) P.O. each day during week 0.

Sponsors & Collaborators

Principal Investigators

  • Maura Dickler, MD · Memorial Sloan Kettering Cancer Center

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
1999-07-31
Primary Completion
2003-07-31
Completion
2008-08-31

Countries

  • United States

Study Locations

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Entities

Diseases
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00200174 on ClinicalTrials.gov