Active clinical trials for "Breast Neoplasms"

Objective: Evaluate body mass index (BMI), leptin, Leptin/adiponectin (L/A) ratio and cancer antigen (CA) 15-3 together as reliable biomarkers for breast cancer. Patients: Consecutive patients aged between 40 - 60 years, with breast disease and informed consent. Interventions: Patients' Anthropometric and laboratorial characteristics classified by BMI in the group of cancer and patients with benign breast disease as well as biochemical tests of leptin, adiponectin,CA 15-3, hemoglobin, glucose low-density lipoprotein cholesterol (LDLC), high-density lipoprotein cholesterol (HDLC) levels were obtained as well as a blood sample to analyze CA 15-3 levels with a electrochemiluminescence immunoassay. Hypothesis: Using together leptin, L/A ratio, CA 15-3 and BMI could offer a reliable approach to detect high risk women to develop breast cancer.

Study to evaluate the efficacy of intravenous iron supplementation in the prevention of anemia in patients receiving (neo)adjuvant breast cancer regimens.

Adherence (or compliance with) a medication regimen is generally defined as the extent to which patients take medication as prescribed by their health care providers. The adherence to medications has close relation to effectiveness of the therapy. The primary objective of this study is to observe the adherence to treatment with oral clodronate (PDC, proportion of days covered, number of days in which clodronate is taken according to treating physician recommendation) in patients with malignancy. The secondary "hypothesis generating" objective is to describe the relation between adherence to treatment with oral clodronate and efficacy of the therapy (skeletal events, pain).

The investigators want to research whether genetic polymorphisms of drug-metabolizing enzymes can be used to predict chemotherapeutic outcomes in patients with metastatic breast cancer.

Neoadjuvant chemotherapy (NAC) is frequently proposed to patients with large tumours that can be operated in order to increase the chances of breast conservation. After NAC, patients are operated with systematic axillary lymph node dissection (ALND), although more than half of these patients do not have lymph node involvement. These results lead us to consider the indication of the sentinel lymph node (SLN) technique after NAC in order to avoid unnecessary ALND in patients whose SLN is free of involvement. We need to validate the SLN technique after NAC in patients who have proven lymph node involvement prior to NAC. GANEA2 is a new trial based on patient treated for a large breast tumor with proven axillary involved nodes. Patients enrolled in this trial will have first an axillary sonography with fine needle punction in case of suspected nodes before NAC. This primary evaluation allow to determine two groups of patients : group 1 (pN+) : patients with proven involved axillary nodes and group 2, patients without proven axillary involved nodes (cN0). Patients of group 1, will undergo SLNB and complete level I-II axillary lymphadenectomy. Patients of group 2 will undergo SLNB and a complete axillary level I-II lymphadenectomy only in the case of detection failure or involved SLN and a SLNB alone in the others cases. Patients of this last group will be followed 5 years in order to evaluate the risk of axillary relapse without lymphadenectomy.

The goal of this study is to evaluate antiproliferative effects of Arimidex in ductal lavage fluids of Breast Cancer patients. Breast cancer is the leading cause of cancer incidence and the second leading cause of cancer mortality in women. Breast duct fluid provide biomarkers to aid in risk assessment of developing breast cancer.

The single shot partial breast irradiation (SSPBI) trial was designed as a prospective Phase II "single-arm study". The use of a single dose tumor bed is expected to be very effective in terms of tumor control, but it could increase the incidence of radiation induced erythema. Therefore, the investigators assumed that a decreased DNA repair capability, as well as a reduced detoxification of the damage caused by oxidative stress could explain the increased acute toxicity, i.e. a higher incidence of erythema after a single dose. For this reason the investigators decided to investigate SNPs of genes involved in antioxidant and DNA damage repair pathways such as GST, XRCC1, XRCC3 and RAD51. The investigators assumed an erythema rate of 20% and 54% in patient groups at low and high risk, respectively, (groups were identified based on the absence/presence of the above polymorphisms alone or in combination), thus the minimum sample size was 56 patients with α=0.05, 2-tailed test and a power of the study of 80%.

To determine the impact on Interpreting Physician performance in detecting breast cancer, as defined by the area under the Receiver Operating Characteristic Curve (ROC), when Automated Breast Ultrasound (ABUS) and screening mammography (XRM) are combined, compared to screening mammography alone in asymptomatic women with >50% parenchymal density and a screening mammogram assigned a BI-RADS Assessment Category 1 (negative) or 2 (normal with benign findings). The effect of the improved Reader performance is illustrated by plotting the ROC curves for XRM alone and XRM+ABUS. If Reader performance improves with the addition of ABUS to the XRM, the area under the curve (AUC) for XRM+ABUS (AUCXRM+ABUS) will be greater than the area under the curve for XRM Alone (AUCXRM Alone). This difference is represented as ∆AUCABUS. The null and alternative hypotheses can be formally expressed as follows: H0: ∆AUCABUS = 0, AUCXRM+ABUS = AUCXRM Alone The null hypothesis is that Reader performance will be unchanged with the addition of ABUS to a screening mammogram assigned a BI-RADS Assessment Category of 1 or 2. HA: ∆AUCABUS ≠ 0, AUCXRM+ABUS ≠ AUCXRM Alone The alternative hypothesis is that Reader performance will be changed with the addition of ABUS to a screening mammogram assigned a BI-RADS Assessment Category of 1 or 2. A statistically significant change will be considered equivalent to a statistically significant improvement if the estimated value of AUCXRM+ABUS is greater than that of AUCXRM Alone with statistical significance at an alpha level of .05 for a two-sided test.

The study is a prospective multi-centered cohort study designed to determine the safety and efficacy of AlloMax in immediate expander-based breast reconstruction. Specifically, the study is designed to determine if sterility of human acellular dermal matrix results in a lower incidence of infection and seroma. The study will determine if gamma radiation, as a method of terminally sterilizing human acellular dermal matrix, has a negative impact on graft incorporation into the host tissue.

The study will determine the sensitivity, specificity, negative predictive value and positive predictive value of the OSNA Breast Cancer System by comparing its performance to an extensive intraoperative frozen section protocol for Sentinel Lymph Nodes removed during standard Sentinel Lymph Node biopsy procedures from breast cancer subjects.