Cancer of Breast Clinical Trial
Official title:
Aging Mammary Stem Cells and Breast Cancer Prevention
Verified date | December 2023 |
Source | The University of Texas Health Science Center at San Antonio |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
To examine whether rapamycin can reduce malignant markers and aberrant mammary stem/progenitor cells (MaSCs) number in surgical specimens
Status | Terminated |
Enrollment | 58 |
Est. completion date | May 1, 2022 |
Est. primary completion date | March 1, 2022 |
Accepts healthy volunteers | No |
Gender | Female |
Age group | 18 Years to 80 Years |
Eligibility | Inclusion Criteria: - Women with confirmed menopausal status. All patients who have NOT had a prior bilateral oophorectomy and/or are younger than age 60, will require menopausal status verified by FSH and estradiol local labs. - Women diagnosed with DCIS/LCIS, Atypical lobular hyperplasia (ALH) or ADH lesions detected by pathology - Women scheduled for mastectomy or lumpectomy after DCIS/LCIS, ALH or ADH diagnosis - Women consented to the UT Health Cancer Center MD Anderson Cancer Center tissue biorepository (HSC20070684H) - Women of child-bearing potential willing to practice 2 forms of contraception, one of which must be a barrier method until at least 30 days after the last dose of rapamycin. - Women of child-bearing potential must have a negative serum pregnancy test at time of enrollment. - Patients must be able to swallow and retain oral medication. - All patients must have given signed informed consent prior to registration on study. - Patients must have normal organ and marrow function as defined below: 1. Leukocytes = 3,000/uL 2. Absolute neutrophil count = 1,500/uL 3. Platelets = 100,000/uL 4. AST = 2.5 X ULN 5. ALT = 2.5 X ULN 6. Total bili = 1.5 X ULN or Direct bili = 1 X ULN Exclusion Criteria: - Women who are pregnant. - Women who are receiving any other concomitant treatment for their DCIS/LCIS, ALH or ADH - Women who are taking rapamycin for another diagnosis. - Women with an allergy to rapamycin or its derivatives. - Active infection requiring systemic therapy. - Patients who are taking any pills containing herbal (alternative) medicines are NOT eligible for participation. Patients must be off any such medications by the time of registration. - Immunocompromised subjects, including patients with human immunodeficiency virus - Women currently taking strong CYP3A4 inducers or inhibitors. Drugs that cannot be coadministered with rapamycin include but are not limited to: Calcium channel blockers: nicardipine, Antifungal agents: clotrimazole, fluconazole, Antibiotics: troleandomycin, Gastrointestinal prokinetic agents: cisapride, metoclopramide, Other drugs: bromocriptine, cimetidine, danazol, HIV-protease inhibitors (e.g., ritonavir, indinavir), Anticonvulsants: carbamazepine, phenobarbital, phenytoin, Antibiotics: rifapentine. The research team can provide a full list of these medications. - Patients with any of the following conditions or complications are NOT eligible for participation: 1. GI tract disease resulting in an inability to take oral medication 2. Malabsorption syndrome 3. Require IV alimentation 4. History of prior surgical procedures affecting absorption 5. Uncontrolled inflammatory GI disease (e.g., Crohn's, ulcerative colitis) |
Country | Name | City | State |
---|---|---|---|
United States | University of Texas Health Science Center San Antonio | San Antonio | Texas |
Lead Sponsor | Collaborator |
---|---|
LuZhe Sun | National Cancer Institute (NCI) |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | The Effect of Short-term Rapamycin Treatment on Biomarker Ki67 Associated With Progression to Invasive Breast Cancer | Comparing biopsy tissues before the treatment with surgical samples after rapamycin treatment in the same individuals to determine percentage nuclei with positive staining for Ki67 in the CCIS lesions. | Baseline to 5-7 day rapamycin plus 3-7 day washout | |
Primary | The Effect of Short-term Rapamycin Treatment on the Frequency of Luminal Progenitor Epithelial Cells | Assessment will be used to measure changes in luminal progenitor cell population between controls and treated patients. | 5-7 day rapamycin treatment plus 3-7 day washout for the treatment group. | |
Primary | The Effect of Short-term Rapamycin Treatment on Sphere Formation Efficiency of Mammary Stem Cells | Measurement of difference in sphere formation efficiency (SFE) by mammary stem cells (MaSCs) in the basal myoepithelial cell population between the control and treatment groups. SFE is an in vitro method by quantifying the number of spheres formed divided by the number of cells seeded. Higher SFE indicates higher frequency of MaSCs. | 5-7 day rapamycin treatment plus 3-7 day washout for the treatment group. | |
Primary | The Effect of Short-term Rapamycin Treatment on the Frequency of Mature Luminal Epithelial Cells | Measurement of Mature luminal cell populations in the treatment group compared to the control group. | 5-7 day rapamycin treatment plus 3-7 day washout for the treatment group. | |
Primary | The Effect of Short-term Rapamycin Treatment on Sphere Formation Efficiency of Luminal Progenitor Cells | The measurement of sphere formation efficiency (SFE) between luminal progenitor (LP) cells from the control group and those from the treatment group. SFE is an in vitro method by quantifying the number of spheres formed divided by the number of cells seeded. Higher SFE indicates higher frequency of LP cells. | 5-7 day rapamycin treatment plus 3-7 day washout for the treatment group. |
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