Clinical Trials

The purpose of this study is to recruit 2000 incident cases of primary breast cancer in order to perform laboratory assays to measure frequencies of genetic polymorphisms for genes that encode enzymes involved in candidate gene pathways, including:  estrogen and catecholestrogen formation, bioactivation and inactivation, cellular proliferation and apoptosis, nuclear factor kappa-beta; to compare genotype frequencies for polymorphisms of genes in breast cancer cases and controls, and to evaluate possible interactions among common polymorphisms in candidate genes.

This partially randomized phase Ib/II trial studies the side effects and best dose of taselisib when given together with enzalutamide and to see how well they work in treating patients with androgen receptor positive triple-negative breast cancer that has spread to other places in the body. Taselisib is a PI3K inhibitor. The PI3K pathway is involved is cancer growth. Androgen may cause the growth of tumor cells. Enzalutamide may stop the growth of tumor cells by blocking the androgen receptor from working. Giving taselisib with enzalutamide may be a better treatment for patients with breast cancer.

This is a combination Phase I and Phase II study, with an aim to evaluate the combination of GSK525762 and fulvestrant in women with advanced or metastatic ER+ breast cancer, who have disease that has progressed after prior treatment with at least one line of endocrine therapy. The objectives of the study are to first identify, in open-label single-arm Phase I, a recommended Phase II dose of GSK525762 that may be combined safely with fulvestrant. Phase I will follow a modified toxicity probability interval (mTPI) design, and a sentinel group will be evaluated first for dose-limiting toxicity and further expanded ...

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.

The purpose of this study is to compare the effectiveness and safety of elacestrant to the standard of care (SoC) options of fulvestrant or an aromatase inhibitor (AI) in women and men with breast cancer whose disease has advanced on at least one endocrine therapy including a CDK4/6 inhibitor in combination with fulvestrant or an aromatase inhibitor (AI) .

The purpose of this study is to analyze breast tissue changes after a short course of Tamoxifen (Tam).

The purpose of this study is to compare the effectiveness of fulvestrant to anastrozole or tamoxifen in treating invasive lobular breast cancer, by measuring the level of the biomarker Ki67 found in tumor tissue before and then after treatment.

This phase I trial studies the side effects and best dose of alisertib when given together with fulvestrant in treating patients with hormone positive breast cancer that has spread to other parts of the body or is locally advanced and cannot be removed by surgery. Alisertib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Estrogen and progesterone are type of hormones made by the body and they can cause the growth of breast cancer cells. Hormone therapy using fulvestrant may fight breast cancer by lowering the amount of estrogen or progesterone ...

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 study is to learn about potential side effects facing people who are undergoing treatments for their cancer, specifically, hair loss. While this is not a well-documented side effect of hormone-blocking medications (such as tamoxifen, letrozole, anastrozole, or exemestane), we have preliminary evidence that it is a problem for some patients getting this treatment.  This study will include some patients receiving the hormone therapy and some patients who are not, so we can better understand whether patients getting the hormonal therapy have more hair loss than patients who are not getting such.

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.

The purpose of this study is to assess the effectiveness of capivasertib + fulvestrant vs placebo + fulvestrant for the treatment of patients with locally advanced (inoperable) or metastatic HR+/HER2- breast cancer following recurrence or progression on or after Aromatase Inhibitor (AI) therapy.

This phase II trial studies how well anastrozole and letrozole after surgery work in treating patients with stage I-III breast cancer. Drugs, such as anastrozole and letrozole may stop the growth of tumor cells by decreasing the amount of estrogen made by the body. Giving anastrozole and letrozole after surgery may prevent breast cancer from coming back (recurrence).

This phase II trial studies how well Akt inhibitor MK-2206 (MK-2206) and anastrozole with or without goserelin acetate works in treating patients with stage II-III breast cancer. MK-2206 may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Estrogen can cause the growth of breast cancer cells. Hormone therapy using anastrozole and goserelin acetate may fight breast cancer by blocking the use of estrogen by the tumor cells. Giving MK-2206, anastrozole, and goserelin acetate together may kill more cancer cells.

The purpose of this study is to compare the effect of active symptom monitoring and patient education to patient education alone in helping young women with stage I-III breast cancer stay on their hormone therapy medicines.  

The purpose of this study is to study to collect tissue samples from patients with early stage hormone receptor-positive HER2-negative breast cancer.  

The purpose of this study is to identify a (Z)-endoxifen dose that achieves (Z)-endoxifen steady-state plasma concentrations (Css) between 500-1000 ng/mL. Dosing will begin with the (Z)-endoxifen 40 mg/day dose and may additionally explore either a lower (20 mg/day) or higher (80 mg/day) dose level based on (Z)-endoxifen Css as well as toxicity.

This study looks at the risks and benefits of active surveillance (AS) compared to guideline concordant care (GCC) in the setting of a pragmatic prospective randomized trial for low risk DCIS. Our overarching hypothesis is that management of low-risk Ductal Carcinoma in Situ (DCIS) using an AS approach does not yield inferior cancer or quality of life outcomes compared to GCC.

The purpose of this study is to identify the recommended Phase 2 dose (RP2D) of LY3484356 administered as monotherapy and in combination with other anticancer therapies in patients with locally advanced or metastatic ER+ breast cancer or ER+ recurrent, persistent, or metastatic endometrial endometrioid cancer (EEC).

The purpose of this study is to evaluate whether or not treatment with alternating 17B-estradiol / anti-estrogen therapies on a defined 8-week / 16-week schedule will more effectively prevent cancer growth than continuous treatment with either type of therapy in patients with metastatic anti-estrogen-resistant ER+ breast cancer.

The purpose of this study is to evaluate the efficacy of venetoclax in combination with fulvestrant compared with fulvestrant alone for HER2-negative breast cancer.

The best available evidence suggests that pregnancy after breast cancer does not increase a woman's risk of developing a recurrence from her breast cancer. In particular, the most recent data suggest that this is the case also in women with a hormone receptor-positive breast cancer. There is also no indication of increased risk for delivery complications or for the newborn. The aim of the study is to investigate if temporary interruption of endocrine therapy, with the goal to permit pregnancy, is associated with a higher risk of breast cancer recurrence.The study aims also to evaluate different specific indicators related to ...

The purpse of this study is to evaluate the safety and tolerability of the lasofoxifene and abemaciclib combination for the treatment of pre- and postmenopausal women with locally advanced or metastatic ER+/HER2− breast cancer who have disease progression on first and/or 2nd lines of hormonal treatment for metastatic disease and have an ESR1 mutation.

Efficacy and safety of treatment with alpelisib plus endocrine therapy in patients with HR+, HER2-negative aBC, with PIK3CA mutations, whose disease has progressed on or after CDK 4/6 treatment with an aromatase inhibitor (AI) or fulvestrant

The purpose of this study is to determine whether treatment with alpelisib plus fulvestrant will lengthen progression-free survival compared to fulvestrant and a placebo in men and postmenopausal women who have hormone receptor positive (HR+), HER2-negative advanced breast cancer.

The purpose of this study is to determine if counseling patients about low dose tamoxifen will influence the decision to take (or not take) preventive therapy among women at increased risk for breast cancer.

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 evaluate combining endocrine therapy with CDK4/6 inhibition along with trastuzumab in ER+/ human epidermal growth factor receptor 2 (HER2)+ early stage breast cancer in order to influence estrogen receptor (ER) signaling.

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 ...

The goal of this study is to perform a quantitative measure of lobular involution (qLI) from breast biopsy samples obtained at baseline (surgery) and 12 months or at time of study discontinuation. The study will determine breast density (MMG) and correlate with qLI. The study will also determine the influence of chemoprevention therapies such as tamoxifen and letrozole on qLI.

This phase II trial studies how well alisertib with or without fulvestrant works in treating patients with endocrine-resistant breast cancer that has spread to other places in the body. Alisertib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Hormone therapy using fulvestrant may fight breast cancer by blocking the use of estrogen by the tumor cells or reducing the amount of estrogen made by the body. Giving alisertib with or without fulvestrant may be better in treating patients with breast cancer.

A Phase II study to investigate the potential utility of PD 0332991 in the treatment of early stage ER+ Human epidermal growth factor receptor 2 (HER2)- breast cancer, to investigate whether the combination of PD 0332991 and anastrozole is able to: 1) improve the pathologic complete response rate when compared to the historical control of single agent aromatase inhibitors, 2) result in fewer patients with on therapy Ki67>10% compared to historical control.

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 ...

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 ...

The purpose of the study is to determine whether treatment with a PI3K inhibitor plus letrozole leads to an increase in pathologic clinical response and Objective Response Rate compared to treatment with placebo plus letrozole in patients with Breast cancer

The purpose of this study is to assess the effectiveness and safety of pembrolizumab (MK-3475) versus placebo in combination with neoadjuvant (pre-surgery) chemotherapy and adjuvant (post-surgery) endocrine therapy in the treatment of adults who have high-risk early-stage estrogen receptor-positive, human epidermal growth factor receptor 2-negative (ER+/HER2-) breast cancer.

RATIONALE: Estrogen can stimulate the growth of breast cancer cells. Hormone therapy using letrozole may fight breast cancer by reducing the production of estrogen.

PURPOSE: This randomized phase III trial is studying letrozole to see how well it works in treating women with breast cancer who have received tamoxifen for at least 5 years.

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 objective of this study is to assess efficacy and safety of radium-223 dichloride in subjects with human epidermal growth factor receptor 2 negative (HER2 negative) hormone receptor positive breast cancer with bone metastases treated with hormonal treatment background therapy.

This study aims to compare an additional support program (text message reminders and/or telephone-based counseling) with usual care in making sure breast cancer patients take their endocrine therapy medication as prescribed (medication adherence). 

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

This phase IIb trial studies how well low-dose tamoxifen citrate works in reducing breast cancer risk in radiation-induced cancer survivors.

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 works in treating patients with breast cancer.

The primary aim of this study is to determine if the addition of an individual polygenic risk score (PRS) in addition to the Breast Cancer Risk Assessment Tool (BCRAT) or Tyrer-Cuzick (IBIS) score will aid women at risk of breast cancer in making a decision to take (or not take) medications to prevent breast cancer.

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 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.

RATIONALE: Estrogen can cause the growth of breast cancer cells. Hormone therapy using letrozole may fight breast cancer by lowering the amount of estrogen the body makes. It is not yet known whether letrozole is more effective than a placebo in treating patients with hormone receptor-positive breast cancer.

PURPOSE: This randomized phase III trial is studying letrozole to see how well it works compared with a placebo in treating postmenopausal women who have received hormone therapy for hormone receptor-positive breast cancer.

RATIONALE: Estrogen can cause the growth of breast cancer cells. Hormone therapy using letrozole may fight breast cancer by blocking the use of estrogen by the tumor cells or by lowering the amount of estrogen the body makes.

PURPOSE: This phase II trial is studying how well letrozole works in treating women with ductal carcinoma in situ.

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.

Utilizing CellSearch® technology, the ability to both enumerate and reliably and reproducibly characterize circulating tumor cells (CTC) for tumor markers that predict endocrine sensitivity (estrogen receptor [ER] and Bcl-2) and resistance (HER2 and Ki67) has been demonstrated. An algorithm for a CTC-Endocrine Therapy Index (CTC-ETI) has been constructed that can be calculated for each patient using the CTC enumeration and marker results. The primary goal of this study is to determine a CTC-ETI in ER positive, HER2 negative metastatic breast cancer patients before the initiation of a new endocrine therapy for the identification of patients that will progress rapidly.

This phase II trial studies F-18 16 alpha-fluoroestradiol (FES) positron emission tomography (PET)/computed tomography (CT) in predicting response to endocrine therapy in patients with newly diagnosed breast cancer that has spread to other parts of the body. FES is a radioactive form of the hormone estrogen and may "light up" where cancer is in the body. Diagnostic procedures using FES, such as FES PET/CT, may help measure the FES and help doctors predict how well the cancer will respond to treatment.