Matthew P. Goetz, M.D.

The purpose of this registry is to collect and maintain samples of breast tissue from women and men undergoing surgery for a breast related concern at Mayo Clinic Rochester,  to create a biospecimen resource for the study of benign and cancerous breast conditions.

The treatment for postmenopausal women diagnosed with hormone receptor positive (HR+) metastatic breast cancer (mBr) includes endocrine therapy However, de novo or acquired resistance to endocrine therapy remains an important clinical problem. Many hormone receptor positive breast cancers demonstrate overexpression of cyclin D. Cyclin D interacts directly with cyclin-dependent kinases 4 and 6 (CDK4/6) in an active protein complex that promotes cell proliferation; and consequently, CDK4/6 represents a potential therapeutic target for HR+ breast cancers.

LY2835219 represents a selective and potent small molecule inhibitor of CDK4/6. LY2835219 demonstrates suitable physical and pharmacokinetic (PK) properties, an acceptable toxicity profile in nonclinical species, and antitumor activity in multiple mouse models of human cancer,. LY2835219 inhibits tumor growth in multiple human xenograft models including, but not limited to, the following tumor types: 1) colorectal cancer, 2) glioblastoma multiforme, 3) acute myeloid leukemia, 4) non-small cell lung cancer, and 5) mantle cell lymphoma (MCL).

Importantly, LY2835219 has demonstrated early evidence of single-agent activity against HR+ mBC in study I3Y-MC-JPBA. I3Y-MC-JPBA is being amended to include an expanded cohort of postmenopausal women with disease progression following antiestrogen therapy who are receiving fulvestrant. The Phase 1b study I3Y-MC-JPBH (JPBH) will further evaluate the safety and tolerability of LY2835219 in combination with hormone therapies for patients with advanced and/or HR+ mBC.

This open-label research study is studying (Z)-endoxifen as a possible treatment for pre-menopausal women with ER+/HER2- breast cancer. (Z)-endoxifen belongs to a group of drugs called selective estrogen receptor modulators or "SERM", which help block estrogen from attaching to cancer cells. This study has two parts: a pharmacokinetic part and a treatment part.

The PK part (how the body processes the drug) will enroll about 18 participants. All participants will take (Z)-endoxifen capsules daily. Twelve participants will be randomly assigned (50/50 chance) to take (Z)-endoxifen alone or (Z)-endoxifen with a monthly injection of goserelin a drug that temporarily stops the ovaries from making estrogen. This part will help determine the best dose of (Z)-endoxifen by measuring the drug levels in the blood and how long the body takes to remove it.

The Treatment Cohort has been simplified to a single study arm (Z)-endoxifen + goserelin. Up to 20 participants will be enrolled that have a baseline Ki-67 ≤ 10% and 45 participants will be enrolled that have a baseline Ki-67\>10%.

A key goal of the study is to see if (Z)-endoxifen can slow down or stop tumor growth as measured by a reduction in Ki-67 levels. Tumor tissue samples will be taken by breast biopsy after about 4 weeks of treatment to check levels of this biomarker. If the tumor shows signs of response, participants can continue treatment for up to 24 weeks or until they have surgery.

Study participation is up to 6 months (24 weeks of treatment) followed by surgery and a one-month follow up visit.

The purpose of this study is to evaluate the side effects and best dose of AFP464 for treating patients who have solid tumors that are metastatic or resistant to treatment, and that cannot be removed by surgery. Drugs used in chemotherapy, such as AFP464, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing.

The purpose of this studyis to assess how well tamoxifen citrate works in patients with metastatic or recurrent breast cancer. Estrogen can cause the growth of breast cancer cells. Hormone therapy using tamoxifen citrate may fight cancer by blocking the use of estrogen by tumor cells.

RATIONALE: Drugs used in chemotherapy, such as carboplatin and paclitaxel, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Everolimus may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth and by blocking blood flow to the tumor.

PURPOSE: This phase II trial is studying how well carboplatin given together with paclitaxel and everolimus works in treating patients with previously untreated cancer of unknown primary.

This phase II study will test cancer to see if it has a HER2 mutation and, if so, see how HER2 mutated cancer responds to treatment with neratinib.

RATIONALE: Drugs used in chemotherapy work in different ways to stop the growth of breast cancer cells, either by killing the cells or by stopping them from dividing. Giving the drugs in different combinations may kill more breast cancer cells. Giving combination chemotherapy after surgery may kill any tumor cells that remain after surgery.

PURPOSE: This randomized phase III trial is studying different combination chemotherapy regimens and their side effects and comparing how well they work in treating women with non-metastatic breast cancer.

The study is intended to show superiority of AZD9833 in combination with CDK4/6 inhibitor (palbociclib, abemaciclib or ribociclib) versus aromatase inhibitors (anastrozole or letrozole) in combination with CDK4/6 inhibitor in patients with hormone receptor-positive (HR-positive), human epidermal growth factor receptor 2-negative (HER2-negative) metastatic breast cancer with detectable ESR1 mutation.

This phase III clinical trial is studying how well giving tamoxifen citrate, anastrozole, letrozole, or exemestane with or without chemotherapy works in treating patients with invasive breast cancer. Estrogen can cause the growth of breast cancer cells. Hormone therapy, using tamoxifen citrate, may fight breast cancer by blocking the use of estrogen by the tumor cells. Aromatase inhibitors, such as anastrozole, letrozole, and exemestane, may fight breast cancer by lowering the amount of estrogen the body makes. Drugs used in chemotherapy work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. It is not yet known whether giving tamoxifen citrate, anastrozole, letrozole, or exemestane is more effective with combination chemotherapy in treating patients with breast cancer.

This randomized, double-blind, placebo-controlled, two-arm study will assess the safety and efficacy of pertuzumab in addition to chemotherapy plus Herceptin (t rastuzumab) as adjuvant therapy in patients with operable HER2-positive primary breast cancer. After surgery, patients will be randomized to receive either pertuzumab or placebo intravenously (iv) every 3 weeks for one year, in addition to 6-8 cycles of chemotherapy and 1 year of Herceptin (trastuzumab) iv every 3 wee ks. Anticipated time on study treatment is 52 weeks. This study will be carried out in collaboration with the Breast International Group (BIG).

The main purpose of this study is to evaluate how effective nonsteroidal aromatase inhibitors (NSAI) plus abemaciclib are in postmenopausal women with breast cancer.

The primary objective of this study is to demonstrate that the combination of palbociclib with anti-HER2 therapy plus endocrine therapy is superior to anti-HER2-based therapy plus endocrine therapy alone in improving the outcomes of subjects with hormone receptor-positive, HER2+ metastatic breast cancer.

The purpose of this study is to evaluate the safety and effectiveness of the study drug abemaciclib in participants with high risk, node positive, early stage, hormone receptor positive (HR+), human epidermal receptor 2 negative (HER2-), breast cancer.

The treating physician/investigator contacts Lilly when, based on their medical opinion, a patient meets the criteria for inclusion in the expanded access program.

The purpose of this study is to evaluate the activity of lasofoxifene relative to fulvestrant for the treatment of postmenopausal women with locally advanced or metastatic ER+/HER2− breast cancer with an acquired ESR1 mutation and who have disease progression on an aromatase inhibitor (AI) in combination with a cyclin dependent kinase (CDK) 4/6 inhibitor. The primary objective is to evaluate the progression free survival (PFS) of 5 mg lasofoxifene relative to fulvestrant for the treatment of postmenopausal women with locally advanced or metastatic estrogen receptor positive (ER+)/human epidermal growth factor 2 negative (HER2−) breast cancer with an ESR1 mutation.

The purpose of this research study is to better understand the reasons why or why not breast cancers are destroyed by standard chemotherapy. This information will be used to develop new and better cancer therapies.

The primary purpose of this study is to examine the effects of abemaciclib on the CD8/FOXP3 ratio in chemotherapy-resistant triple negative breast cancer (TNBC) patients following neoadjuvant chemotherapy.

The purpose of this study is to evaluate the addition of 2 years of palbociclib to standard adjuvant endocrine therapy for patients with HR+ / HER2- early breast cancer to determine whether the addition of palbociclib will improve outcomes over endocrine therapy alone.

The purpose of this study is to test an experimental combination of two drugs, ABT-888 and Cyclophosphamide (CP), which we hope may eventually lead to promising new therapies for cancer.

This phase I trial studies the side effects and the best dose of Z-endoxifen hydrochloride in treating patients with estrogen receptor-positive (ER+) breast cancer that has spread to other places in the body (metastatic) or has come back at or near the same place as the original tumor (locally recurrent). Estrogen can cause the growth of breast cancer cells. Hormone therapy using Z-endoxifen hydrochloride may fight breast cancer by blocking the use of estrogen by tumor cells.

This phase II trial is studying giving veliparib together with carboplatin to see how well they work compared to veliparib alone in treating patients with stage III or stage IV breast cancer. Veliparib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as carboplatin, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. It is not yet known whether veliparib is more effective with or without carboplatin in treating breast cancer.

RATIONALE: Estrogen can cause the growth of breast cancer cells. Hormone therapy using tamoxifen citrate, goserelin acetate, leuprolide acetate, anastrozole, letrozole, or exemestane, may fight breast cancer by lowering the amount of estrogen the body makes. Everolimus may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. It is not yet know whether hormone therapy is more effective when given with or without everolimus in treating breast cancer.

PURPOSE: This randomized phase III trial studies how well giving hormone therapy together with or without everolimus work in treating patients with breast cancer.

The purpose of this trial is to determine how well estradiol works in treating patients with estrogen receptor beta (ER beta) positive, triple negative breast cancer that has spread to nearby tissue or lymph nodes (locally advanced) or other places in the body (metastatic). Hormone receptors like ER beta allow the body to respond appropriately to hormones. Triple negative means that the breast cancer does not express other hormone receptors called ER alpha, progesterone, and HER2. In some people with triple negative breast cancer, ER beta is overexpressed. Tumor cells that overexpress ER beta grow slower in the laboratory and this growth is slowed in the presence of estrogen. Estradiol is a form of estrogen. This study may help doctors determine whether tumor cells that overexpress ER beta shrink in the presence of estradiol.