Active clinical trials for "Breast Neoplasms"

Relation between chemotherapy and amennorhea

Rationale: The number of breast cancer (BC) patients at risk for long-term radiation-induced health problems is increasing, as their outcome is improving due to intensified treatment regimens, such as new systemic approaches and radiotherapy. Therefore, identifying BC survivors with the highest risk for radiation-induced health problems is crucial for developing strategies for primary and secondary prevention, which may contribute to healthy ageing.

This is a prospective, single-center, non-randomized, non-controlled study. The estrogen receptor (ER), progesterone receptor (PgR), HER2 status and Ki67 index of CNB specimen are critical biomarkers for making neoadjuvant therapy strategy in invasive breast cancer. The concordance of these biomarkers between CNB and surgical specimen was varied in previous retrospective reports. The aim of this study is to determine the discordance of these biomarkers between CNB and surgical specimen and the influence of making treatment strategy by the discordance.

This study will determine if patient-derived tumor xenograft (PDX) mouse models can serve as a reliable model for treatment response for individual patients with triple negative breast cancer. The collection of patient tumor tissue will also provide insight into the mechanisms of therapeutic resistance for those individuals. Ultimately, this study will enhance our understanding of the genomic basis for treatment response for triple negative cancer on an individual basis, while having the potential to suggest new therapeutic options for high-risk triple negative breast cancer patients with residual disease post neoadjuvant.

The 3 Specific Aims are (1) To determine the prevalence, incidence and severity of oral conditions in postmenopausal early stage breast cancer survivors within the first 18 months of adjuvant Aromatase Inhibitor(AI) therapy, (2) To determine the oral health quality of life among postmenopausal early stage breast cancer survivors who are receiving AI therapy, (3) To determine the utilization of dental care among postmenopausal women receiving AIs with a history of early stage BCa over time. The hypothesis for this pilot study is that AIs negatively impact oral health and oral health quality of life in the setting of breast cancer survivors. Further, we hypothesize that dental visits are underutilized in women with BCa undergoing adjuvant AI therapy.

The 10%-15% of breast carcinomas known to be 'triple negative (TN)' (not expressing HRs and not exhibiting overexpression Her2) constitutes 85% of all basal-like tumors, because it is based on three standard immunohistochemical biomarkers. In clinical routine, Docetaxel was widely indicated as first-line therapy for breast cancer patients in adjuvant or neoadjuvant settings. Oxaliplatin, trans-1-diaminocyclohexane-platinum, may offer advantages over other platinum agents. Oxaliplatin promotes formation of DNA adducts, preventing DNA replication and transcription and ultimately causing apoptosis. Oxaliplatin was more potent than cisplatin and the Oxaliplatin-based regimen was active for the patients of lung cancer, colorectal cancer and ect. TNBC patients were more sensitive to platinum-based chemotherapy regimens according to the results of some retrospective studies. There was no report about Oxaliplatin in the chemotherapy setting for breast cancer patients. The investigators hypothesized that using Oxaliplatin adding to docetaxel would be feasible and active in patients with TNLABC because in vitro findings suggest synergism between the agents. This study was designed to investigate the efficacy and toxicity of oxaliplatin-based regimen as a neoadjuvant chemotherapy setting in triple negative local advanced breast cancer patients

The purpose of this study is to determine whether concomitant radiotherapy and trastuzumab (patients treated for early breast cancer) is really safe for the heart even years after treatment and if the investigators should use these two treatments concomitantly without additional harm.

The purpose of this study is to prospectively evaluate the combined use of the MSKCC nomogram (Memorial Sloan-Kettering Cancer Center) and Tenon score to select, in patients with metastatic sentinel lymph node (SN), those at low risk of metastatic non-SN in whom additional axillary lymph node dissection (ALND) could be avoided.

Retrospective observational trial on reasons for withdraw of Adjuvant Tamoxifen in Breast Cancer patients

This study explores how aromatase inhibitor therapy affects risk factors for heart disease in postmenopausal women with breast cancer.