Active clinical trials for "Breast Neoplasms"

The purpose of this study is to investigate the impact of CYP2D6 Genotype on the clinical effects of tamoxifen using with samples from prospective randomized multicenter study(ASTRRA).

RATIONALE: Studying samples of blood, urine, and tumor tissue in the laboratory from patients with cancer and their female relatives and friends may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. PURPOSE: This research study is looking at genes and other risk factors for second primary breast cancer in women with breast cancer and in their female family members and friends.

RATIONALE: Studying samples of tumor tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. It may also help doctors predict how well patients respond to treatment. PURPOSE: This laboratory study is looking at biomarkers that may predict response to tamoxifen and letrozole in postmenopausal women with primary breast cancer treated on clinical trial CAN-NCIC-MA17.

This study aimed to validate the diagnostic ability of the CDT (cancer detection technology) software to detect breast cancer among women population.

In the current study FDG (Fluorodeoxyglucose) uptake, FLT uptake (F18-Fluoro-3'-deoxythymidine) and their ratios will be correlated with the risk score results of the Oncotype gene-expression assay in patients with clinically negative nodal disease planned for surgical removal of the tumor.

RATIONALE: Eating a diet rich in phytoestrogens may slow the growth of breast cancer cells and prevent further tumor progression. Learning about the lifestyles of women with breast cancer, their intake of phytoestrogens derived from food and supplements, and their use of complementary or alternative medicine (CAM) practices may help doctors learn more about breast cancer. PURPOSE: This clinical trial is studying the effect of dietary and supplemental phytoestrogens and CAM therapies in preventing progression and improving survival of women with breast cancer.

RATIONALE: Collecting blood samples and health information from patients with invasive breast cancer and from their brothers and sisters over time may help the study of cancer in the future. PURPOSE: This study is collecting blood samples and health information over time from patients with invasive breast cancer and from their brothers and sisters.

Triple-negative breast cancer has a poor prognosis and lacks effective adjuvant treatment. A number of preclinical and clinical trials have shown that bisphosphonates have direct or indirect anti-tumor activity, and early use of bisphosphonate adjuvant therapy can prevent cancer recurrence and metastasis including bone metastasis and greatly improve the prognosis of cancer patients. Bisphosphonates have the advantages of low cost, low toxicity, and strong tolerance and can be used as an auxiliary treatment for triple-negative breast cancer. The preliminary study found that bisphosphonates can be chimeric with erlotinib, an epidermal growth factor receptor tyrosine kinase inhibitor, which can synergistically inhibit the in vitro tumor formation of cancer (such as non-small-cell lung cancer and breast cancer) cells and the growth of transplanted tumors. Therefore, the purpose of this multi-center prospective real-world study was to further investigate the effects of bisphosphonate adjuvant therapy on breast cancer.

This is a multi-center, Prospective, observational study，to evaluate the safety and influencing factors of albumin-bound paclitaxel in the real-world chinese population，and evaluate of the efficacy of albumin-bound paclitaxel in patients with recurrent or metastatic breast cancer and its impact on quality of life.

The aim of the IMPACT - Implementing Patients' competence in oral breast cancer therapy - study is to evaluate the effectiveness of a standardized patient education and coaching and optional eMBSR for therapy management provided by specially trained oncology nurses regarding persistence rate, side effects management and unplanned therapy interruptions in outpatient oncology care for patients under Abemaciclib treatment.