Active clinical trials for "Breast Neoplasms"

The investigators are hypothesizing that decreasing estrogen levels will cause serum DKK1 to peak, then decrease gradually as estrogens reach a new lower, but steady level. The investigators also believe that the peak in DKK1 will initiated a wave of stem cell diversion from the osteoblastogenic pathway to the adipogenic pathway. The investigators will conduct a longitudinal cohort study of post menopausal women with hormone-responsive breast cancer that will be treated AIs. The study will observe anthromorphic and serum marker changes during the first year of their treatment.

This retrospective observational study is designed to assess the response to treatment with fulvestrant at a dose of 500 mg/month with a loading dose of 500 mg (LD-500), in terms of progression free survival (PFS), overall survival (OS), and clinical benefit rate (CBR), in post-menopausal women with Advanced Breast Cancer and estrogen receptor positive, who were treated with this medicinal product and at said dose after having progressed with a previous anti-estrogen therapy. During this study, a retrospective data collection will be carried out using the information contained in the Clinical History of said patients, provided that the treatment with fulvestrant at a dose of 500 mg and LD-500.

Background: - Some bacteria found in the large and small intestines help keep people healthy and aid digestion. They may also affect a person s risk of developing cancer. Researchers want to study the relationship between intestinal bacteria and breast cancer risk factors. They can do this by looking at stool and urine samples from postmenopausal women. Objectives: - To study intestinal bacteria and its relationship to urine-based markers of breast cancer risk in women. Eligibility: - Women between 55 and 69 years of age with a recent mammogram that showed no signs of cancer. Design: Participants will be screened with a medical history and basic health questionnaire. At home, participants will complete questionnaires about cancer risk factors and food consumption. Participants will also collect urine and stool samples. They will send the samples to the designated labs for study. No treatment will be provided as part of this protocol.

This randomized, open-label, crossover study will evaluate participants' preference and healthcare professional (HCP) satisfaction with SC versus IV Herceptin administration in HER2-positive early breast cancer. Participants will be randomized to receive either SC Herceptin or IV Herceptin every 3 weeks for Cycles 1 to 4, followed by crossover to the other treatment administration for Cycles 5 to 8. For up to 10 additional cycles (for a total of 18 cycles), participants will receive IV or SC Herceptin every 3 weeks.

High sensitivity to targeted agents has been observed in patients whose tumor cells present a genetic/genomic deregulation of the target (Kit mutation, ERBB2 amplification, EGFR mutations) together with addiction to the given target. More recently, activation of "alternative pathways" (Kras mutation, PI3K mutations) have been reported as a common resistance mechanism to single agent tyrosine kinase inhibitors (trastuzumab, cetuximab). From these data has emerged the hypothesis that identification of the deregulated pathway through new molecular tools could allow to propose a more tailored targeted regimen. Based on these concepts, numbers of phase I/II trials enrich their populations in patients presenting specific molecular alterations. High throughput technologies (array CGH, sequencing, gene expression array) identify deregulated genes. In addition, these technologies determine whether such genomic alterations are single (expected efficacy of single agent) or multiple (rationale for combination). In a pilot study that included 135 patients, we recently performed a combination of array CGH and hot spot mutation array in order to drive patients into phase I/II clinical trials. This study led to the conclusions that high throughput technologies i. are feasible (80%) and robust, ii. identify "targetable" genomic alterations in around 40% of samples. In the present study, the investigators will perform high throughput technologies to drive 400 metastatic breast cancer patients into specific phase I/II trials.

The purpose of this study is to confirm the safety profile such as the frequency of serious adverse events or any unexpected adverse events and overall efficacy of Faslodex for long term treatment in daily clinical practice.

This observational study, conducted by the Kenya Society for Hematology and Oncology, will develop a Breast Cancer and Care Registry (BRECC) for Kenya. Data on demographic, clinical and pathological characteristics, treatment and clinical outcome will be collected from newly diagnosed breast cancer patients. Breast cancer patients will be recruited into this registry cohort and followed up for a period of not less than five years.

Current qualitative methods of assessing the aesthetic result following breast reconstruction are known to be poor. The investigators believe that real time digital video footage followed by expert panel review would be a superior method of qualitative assessment of breast cancer reconstruction aesthetics. This has never been studied before.

Persistent pain, sensory disturbances, lymphedema and functional impairment are frequently occurring late effects of breast cancer treatment. The investigators have previously published data on 3253 women treated for breast cancer in Denmark in the period 2005-2006. Very few studies have examined how these late effects change in time. The aim of this study is to examine in a well defined patient population any change in the prevalence of persistent pain, sensory disturbances, lymphedema and functional impairment, as well as risk factor profile.

This multi-center, prospective observational study will evaluate the treatment patterns, and the safety in patients with HER2-positive (HER2+) metastatic breast cancer (MBC). Eligible patients will have an initial metastatic breast cancer diagnosis that has not been previously treated with systemic therapy; patients may be enrolled up to 6 months after the diagnosis. Data will be collected for up to 8 years.