Pre-Surgical Study: Effect of Metformin on Breast Cancer Proliferation
Status and phase
Conditions
Treatments
Details and patient eligibility
About
The purpose of this pilot study is to use a pre surgical intervention model to evaluate the biologic effects of metformin in women with newly diagnosed early invasive breast cancer. Metformin is a drug commonly used to treat patients with diabetes. This model will be used to evaluate the effects of metformin.
Full description
Breast cancer is the most common cancer and the second leading cause of cancer death among women in the United States. Several epidemiologic studies have found an increased risk of breast cancer in women with type 2 diabetes. This association appears to be mediated by a state of hyperinsulinemia and insulin resistance. Population based studies have also found a decreased risk of cancer in diabetic patients taking metformin, an oral biguanide derivative. Proposed mechanisms include its effect on lowering serum insulin levels as well as modulation of cellular signaling pathways which inhibit tumor cellular proliferation.
Enrollment
Sex
Ages
Volunteers
Inclusion criteria
- Histologically-confirmed operable invasive breast cancer or ductal carcinoma in situ (DCIS) who undergo core needle biopsy followed by surgical excision at least 2 weeks after enrollment
- Body mass index > 25
- Age ≥ 21 years
- No prior chemotherapy, radiation therapy, or surgery within 6 months of study entry
- Signed informed consent
Exclusion criteria
- History of diabetes mellitus requiring medical therapy
- Treatment with other investigational drugs within 6 months of study entry
- Significant renal impairment with a creatinine > 1.4 mg/dl
- Other serious intercurrent medical illness
Trial design
Primary purpose
Allocation
Interventional model
Masking
35 participants in 1 patient group
Trial contacts and locations
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Data sourced from clinicaltrials.gov
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