Active clinical trials for "Breast Neoplasms"

The purpose of this study is to analyze gene expression signature and immunohistochemical markers associated with clinical and pathological response to neoadjuvant chemotherapy in locally advanced breast cancer.

The purposes of this study is to establish normal optical values of breast tissue in the general population. This will allow for establishing normals for breast composition, and is expected to be useful in the classification of breast lesions into groups such as cysts, benign growths, inflammatory lesions, and possibly early breast cancer.

The purpose of this study is to increase understanding of women who are at high risk for developing breast cancer. Data from this group will be collected and entered into a registry. This registry serves as a clinical database to support research in prevention, early detection and treatment of breast cancer.

Pain is common in cancer, affecting between 40 and 60% of patients depending on tumour type and stage of disease, and represents a major area of unmet need in cancer survivors. Despite advances in treatment, there has been no significant reduction in those who experience pain. Breast cancer is common. It represents 10% of newly diagnosed cancers globally and is often associated with pain. Exact physiological mechanisms for cancer pain are not yet fully established. There is a complex relationship between a malignant lesion and its micro-environment; a tumour does not exist in isolation but has a dynamic relationship with host cells. There is a growing interest in delineating the relationship between tumour manifestations and pain. By retrospectively identifying individuals who have been referred to specialist pain clinics at a cancer centre and matching them to controls, the investigators can identify two groups of patients (those who experienced significant problems with pain and those who did not). Accessing paraffin-embedded tissue samples from those that have had surgical resections, will allow the investigators to compare tissue samples, in particular the metabolic and genetic differences, between the two groups. No new tissue samples will be required for this study. Pain is a major area of unmet need in cancer survivors. The investigators propose that this project would provide valuable knowledge and pilot data regarding the link between pain and tumour genetics. It has the potential to identify tumour genes or mutations that are associated with greater incidences of pain and ultimately potentially guide targeted interventions to help reduce the frequency and impact of pain on patients living with and beyond cancer.

A Multi-center Cross-sectional quantitative study with a preliminary qualitative study part aiming to identify and analyze demand factors, supply factors and perceptions affecting Breast Cancer patients' treatment choices of Breast Cancer patients in 5 key decision points: participation role in the decision making process, hospital choice, treatment regimen choice, surgical extent and surgeon choice. 25 patients and caregivers will participate in the qualitative part and 425 Israeli Breast Cancer patients will participate in the quantitative study.

The purpose of this study is to identify the genetic variants that are associated with higher risk of doxorubicin-induced cardiotoxicity can contribute towards developing a predictive algorithm comprising both clinical and genetic factors to select patients who should avoid treatment with anthracyclines. Hypothesis of this study is certain functional variants in genes that encode for metabolizing enzymes and/or targets in the doxorubicin pharmacology pathway may increase the risk of doxorubicin-induced cardiomyopathy

The investigators hypothesise that the research data will enable them to elucidate local clinical practices with regard to breast cancer care and enable them to extrpolate the data to improved local clinical care for their patients through self-regulation and audit.

This projective observational study is planned to enroll more than 300 advanced breast cancer patients, who were proved as Her-2 positive using fluorescence in situ hybridization (FISH) and / or immunohistochemistry, and 100 healthy donors as control. Before treatment, the plasma microRNA will be collected and detected by microRNA extraction kit and quantitative polymerase chain reaction (qPCR), respectively. After analyzed their microRNA expression by microRNA predictive model, previously reported by our team, all of enrolled patients will be classified as "probable sensitive group" or "probable resistant group". Herceptin combined with other chemotherapy will be the backbone of salvage treatment and used for at least 3 months; the change of local masses and metastasis lesions after treatment will be documented to evaluate the response. Based on these results, investigator aim to construct a mathematical predictive model by analyzing the correlation of baseline microRNA expression level and the prognosis of patients. And a diagnosis microRNA kit will be planned and manufactured

Aim The aim is to determine the variation in quality of cancer surgery worldwide. Quality will be determined using measures covering infrastructure, care processes, and outcomes. The study will concentrate on the most common surgically treated cancers worldwide: breast, gastric and colorectal cancer. The primary aim focusses on 30-day mortality and complication rates after cancer surgery. The secondary aim is to characterise infrastructure and care processes in the treatment of these cancers worldwide. Primary outcome measure 30-day mortality and complication rates after cancer surgery. Primary comparison Between country groups defined by human development index. Hospital eligibility Any hospital in the world performing surgery for breast, gastric or colorectal cancer. Patient eligibility Consecutive patients undergoing surgery for breast, gastric, or colorectal cancer. Surgery can be with palliative or curative intent. Team Individual hospital teams with up to three people, collecting data for four weeks. Several teams collecting data over multiple four-week periods is encouraged. Time period Patients will be identified, and data collected on all patients during the time-period with follow-up to 30-days. The study will run from 1st April 2018 to 31st October 2018 (with follow-up of the last period to 30th November 2018). Validation Data validation will be in two parts. First, centres will self-report the key processes used to identify and follow-up patients. Second, independent validators will quantitatively report case ascertainment and sampled data accuracy.

This study is prospective cohort study to investigate and identify comprehensively the clinicopathological features and long-term outcome of young breast cancer (YBC). We have enrolled Breast cancer patients under 40 year-old and collected their baseline characteristics including tumor character, familiar history and other background information. Moreover, we have collected breast cancer tissue/blood sample for analyzing genetic characteristics, if patient agree to genetic analysis.