- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00516542
Dehydroepiandrosterone (DHEA) and Letrozole in Treating Patients With Metastatic Breast Cancer
A Phase I Study of DHEA in Combination With Letrozole in ER- Breast Cancer
RATIONALE: Androgens can cause the growth of breast cancer cells. Hormone therapy using dehydroepiandrosterone (DHEA) may fight breast cancer by blocking the use of androgen by the tumor cells. Letrozole may stop the adrenal glands from making androgens. Giving DHEA together with letrozole may kill more tumor cells.
PURPOSE: This phase I trial is studying the side effects and best dose of DHEA when given together with letrozole in treating patients with metastatic breast cancer.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
OBJECTIVES:
- To determine the maximum tolerable dose, dose-limiting toxicity, and pharmacokinetics of dehydroepiandrosterone (DHEA) when given together with letrozole in patients with androgen receptor-positive and estrogen receptor- and progesterone receptor-negative metastatic breast cancer.
OUTLINE: Patients receive oral dehydroepiandrosterone and oral letrozole once daily. Physical exams and blood collections are performed every two weeks. Tumor assessments are performed once every three months.
Study Type
Enrollment (Actual)
Phase
- Phase 1
Contacts and Locations
Study Locations
-
-
Oregon
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Portland, Oregon, United States, 97239-3098
- Knight Cancer Institute At Oregon Health and Science University
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
DISEASE CHARACTERISTICS:
Diagnosis of breast cancer
- Metastatic disease
Hormone receptor status
- Estrogen receptor- and progesterone receptor-negative
- Androgen receptor-positive
PATIENT CHARACTERISTICS:
- ECOG performance status 0-3
- Postmenopausal (> 60 years of age)
- Leukocyte count > 3,000/uL
- Absolute neutrophil count > 1,500/uL
- Platelet count > 100,000/uL
- Total bilirubin normal
- AST and ALT < 2.5 times upper limit of normal
- Creatinine normal OR creatinine clearance > 60 mL/min
PRIOR CONCURRENT THERAPY:
- At least 4 weeks since prior chemotherapy
- At least 4 weeks since prior biologic therapy
- At least 4 weeks since prior radiotherapy
- At least 30 days since prior investigational agents
- No concurrent dehydroepiandrosterone or androstenedione supplements
- No concurrent chemotherapy or radiotherapy
- No concurrent hormone therapy or immunotherapy (including trastuzumab [Herceptin®])
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Dose-limiting toxicity
Time Frame: One year from drug start
|
Subjects will be monitored at day 14 and then every 2 weeks for up to one year.
|
One year from drug start
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Study Chair: Rodney F. Pommier, MD, Oregon Health and Science University
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
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
- Skin Diseases
- Neoplasms
- Neoplasms by Site
- Breast Diseases
- Breast Neoplasms
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Enzyme Inhibitors
- Antineoplastic Agents
- Hormones, Hormone Substitutes, and Hormone Antagonists
- Hormone Antagonists
- Aromatase Inhibitors
- Steroid Synthesis Inhibitors
- Estrogen Antagonists
- Letrozole
Other Study ID Numbers
- SOL-06019-L
- P30CA069533 (U.S. NIH Grant/Contract)
- R21CA119598 (U.S. NIH Grant/Contract)
- OHSU-e2109
- OHSU-IRB00002109
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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