View clinical trials related to Breast Neoplasms.
Filter by:Triple-negative breast cancer constitutes 15-20% of cases of breast cancer and is defined by the absence of estrogen receptors, progesterone receptors, and overexpression or gene amplification of HER2. Although the addition of immune checkpoint inhibitors could improve the outcome of patients with metastatic triple-negative breast cancer (mTNBC), chemotherapy has been the standard of care for systemic treatment for patients with mTNBC. Prognoses remain poor, with reported median overall survival estimates of approximately 18 months or less with available treatments. A meta-analysis of seven clinical trials showed that the median objective response rate (ORR) of second or later line of chemotherapy in mTNBC was only 11%. Patient-derived xenograft (PDX) tumor model, which preserves the histologic and genetic characteristics of patients' tumors, has shown its predictive value of clinical outcomes and are used for preclinical drug evaluation, biomarker identification, biological studies, and personalized medicine strategies. However, long time period and low success rate has limited its application in clinical practice. Mini patient derived xenograft (miniPDX) offers an effective alternative as it only takes about 7 days for drug sensitivity test and could thus provide guidance for prompt personalized treatment for each patient. Thus, the investigators conduct this single-center, prospective, randomized controlled clinical study to investigate the efficacy of guided treatment based on Mini-PDX in patients with metastatic refractory triple negative breast cancer.
This study aims to investigate the degree of Health Technologies Readiness amongst patients with suspected breast cancer using the READHY-tool.
This study is a multi-center, prospective, self-controlled study, to evaluate the feasibility of targeted axillary lymph node resection (TAD) guided by tissue marker clip with methylene blue single tracer after neoadjuvant chemotherapy in T1-4N1M0 breast cancer patients. Evaluate the accuracy and false negative rate of TAD, comparing with sentinel lymph node biopsy, and explore a new axillary-preserving mode after neoadjuvant chemotherapy for breast cancer.
This is a Phase Ib/II, multicenter, open-label study to evaluate the safety and preliminary efficacy of TT-00420 tablet, as monotherapy or in combination regimens, in patients with advanced solid tumors.
The objective of this study is to assess the safety, efficacy, pharmacokinetics, and immunogenicity of MRG002 in patients with HER2-low locally advanced or metastatic BC.
For women diagnosed with breast cancer, dietary, weight loss, and physical activity have been linked with clinically significant weight loss; decreased risk of death; reduced risk of breast cancer recurrence; fewer cardiovascular events; and improved physical function. The objectives of these aims are to a) determine if the TOPS materials and format are possible and accepted by overweight and obese African American breast cancer survivors; b) gather data for sample size calculations for a larger future study. To meet these aims, we will collect data to see if participants enjoyed the TOPS program and suggestions for changes to the program to make it fit their needs. Other methods will measure recruitment, retention, and weight change. Aim 1: Examine the feasibility and acceptability of a national, low-cost, community-based, peer-led, weight loss program (Take Off Pounds Sensibly, TOPS) for overweight and obese African American breast cancer survivors in the local chapter of a national African American breast cancer support group (Sisters Network Triangle North Carolina, SNTNC). Aim 2: Assess the weight change of overweight and obese African American breast cancer survivors after 6 months in the TOPS program to gather data for sample size calculations for a future RCT (randomized controlled trial).
According to the standard treatment guidelines established until recently, in the case of ipsilateral breast tumor recurrence without systemic metastasis, salvage mastectomy or lumpectomy can be performed when either partial or whole breast radiation therapy is possible. On the other hand, there are currently no standard treatment guidelines for axillary treatment, and the evidence for this is limited. Axillary lymph node metastasis was reported to occur in about 26% of breast cancer patients who had negative sentinel lymph nodes from previous surgery for primary breast cancer and only local recurrence occurred. It is still important in the decision of treatment or adjuvant radiation therapy. However, it is known that most of the patients with ipsilateral breast recurrence do not have axillary lymph node metastasis. Therefore, performing axillary axillary surgery in all of these patients does not help the patient's survival in many cases, but rather can lead to complications such as lymphedema and seroma and postoperative wound infection. A question about the implementation of axillary lymph node resection has been raised and for this reason, it is necessary to study whether surveillance lymph node biopsy is still effective in patients with recurrence in the ipsilateral breast. Most of the studies on ipsilateral breast tumor recurrence without systemic metastasis reported to date are case reports or small retrospective studies. In addition, the combined meta-analysis also has limitations in that the study design is not uniform, and there are many cases in which primary breast cancer surgery performed total mastectomy or axillary lymph node dissection. This study is a multicenter prospective study designed to validate the clinical effectiveness of repeat-SLNB conducted in patients with ipsilateral breast tumor recurrence among patients who previously underwent breast conservation and sentinel lymph node biopsy for unilateral primary breast cancer.
The purpose of this investigation is to conduct a feasibility study to evaluate the potential for implementing the developed decision support tool with Latina, Black, and non-Latina White women. The investigators will collect feasibility data and assess the use of the decision support tool with end-users. The aim is to determine if women using the decision support tool make more informed choices measured by knowledge, attitudes, and intentions.
Breast cancer is one of the most common malignancies in women globally, with ~1.4 million new cases diagnosed annually Breast cancer is one of the leading causes of cancer-related morbidity and mortality among women worldwide. While diabetes/insulin-resistance and breast cancer are distinct diseases, insulin-signaling plays a central role in both illnesses. Insulin activates key cancer processes including epithelial-mesenchymal transition (EMT), tissue inflammation, motility, and angiogenesis. There are key opportunities to impact and prevent hyperinsulinemia during breast cancer prevention, surgical assessment, and chemotherapy. Given the high prevalence of undiagnosed pre-diabetes and diabetes in the United States and worldwide, preoperative screening to identify such patients prior to surgical intervention is warranted. While it is not standard of care to test for insulin-resistance during the course of breast cancer screening and treatment, it is standard of care to screen and test high risk women for insulin-resistance as part of whole woman care. Given the important role insulin signaling plays in driving signaling pathways that promote aggressive cancer biology, more attention should be paid by cancer physicians to screening and treating insulin resistance. Several studies have reinforced a link between breast cancer risk and diabetes. Moreover, metformin significantly reduces breast cancer risk, compared to patients who are not using metformin and is independent of diabetes status. As metformin has an association with decreased breast cancer recurrence, as well as potentially improved survival, disparities in insulin resistance between black and white women with breast cancer is important to investigate. It is hypothesized that metformin decreases the development of resistance in breast cancer cells, thereby allowing current chemotherapy agents to work synergistically with metformin. Our objective is to elucidate whether or not metformin is efficacious in improving insulin resistance in black and white women with breast cancer and if racial disparities in breast cancer prognosis can be partially explained by differences in pre-diagnosis insulin resistance which are improved with metformin therapy.
This study will evaluate the efficacy, safety and patient-reported outcomes of trastuzumab emtansine plus atezolizumab compared with trastuzumab emtansine plus placebo in participants with HER2-positive and PD-L1-positive LABC or MBC.Participants must have progressed either during or after prior trastuzumab- (+/- pertuzumab) and taxane-based therapy for LABC/MBC; or during (or within 6 months after completing) trastuzumab- (+/-pertuzumab) and taxane-based therapy in the neoadjuvant and/or adjuvant setting.