View clinical trials related to Breast Neoplasm.
Filter by:The aim of this study is to evaluate the effect of a 6-mo individualized and specialized food-based nutrition intervention program in breast cancer patients' body composition, metabolism and antioxidant activity associated with micronutrients, during antineoplastic treatment. It is a quasi-experimental prospective follow-up study of women with primary diagnosis of invasive breast cancer in Sonora, Mexico. Conducted between September 2015 through July 2018. The Ethics and Research Committees of The Oncology State Centre and the Food and Development Research Centre, have approved the study's protocol and procedures. At baseline, all participants must sign an informed consent form and answer an oral interview, including self-reported questionnaires, for their nutrition record. At the beginning and 6-mo after, participants will be weighed during the morning in a digital scale and height will be measured using a digital stadiometer. Body mass index (BMI) will be calculated and classified according to the World Health Organization criteria. Waist and hip circumferences will be measured with a metal tape, according to the protocol of the International Society for the Advancement of Kinanthropometry (ISAK), by a certified anthropometrist. Body composition components will be measured in a dual-energy x-ray absorptiometry (Hologic Corporation 4500 Waltham, MA) by total body, L1-L4, and femur neck scans. Blood samples will be drawn by a certified phlebotomist using sterile equipment and aseptic techniques. Breast cancer patients' total energy expenditure will be estimated using an algorithm for Mexican population. Diet plans and recommendations will be based on the individual's nutritional status, dietary habits, symptoms and treatment side-effects, socioeconomic and cultural preferences; as well as the WCRF/AICR guidelines adapting 1.5g/kg/d of dietary protein to avoid sarcopenic obesity and considering a caloric restriction (500-1000 kcal/d), when required. The individualized nutrition intervention program will be based on the macronutrient meal-equivalent menu method, and standard food servings will be based on the Mexican Food Equivalent System. To guarantee that the obtained content for each macronutrient (g/day) meets the theoretical calculations, protein ±1g/d, total fat ±1g/d, carbohydrates ±2g/d and energy ±15 kcal/d variations will be accepted. Breast cancer patients follow-up will be every 2-weeks and a different diet menu will be provided in each session by a specialized dietitian, unto 6-mo are completed, and initial measurements will be repeated. The differences in body composition determinants will be analyzed using paired Student's t-test analysis for each variable. A two-tailed P-value of 0.05 or less will be considered significant. Retinol, tocopherol and carotenoids determination will be performed using HPLC. Serum will be thawed and retinol will be extracted using chloroform:methanol (3:1) and hexane, extracted layers will be combined and then evaporated to dryness under a soft stream of nitrogen. Samples will be re-suspended in ethanol before injecting onto the HPLC using a YMC C-30 column (30 cm length, 4.6 mm internal diameter, 3 µm particle size and 100 mm pore size). The HPLC system is an Agilent 1200 with UV-Vis and PDA detectors. Commercial standards and internal standards will be used to assess concentration and extraction efficiency, respectively. Additionally, the investigators will use a standard NIST serum (National Institute of Standards and Technology; Gaithersburg, Maryland USA). The cut-off point for vitamin A deficient status will be set at < 1.05 μmol /L. The plasma antioxidant capacity will be determined by the trolox-equivalent antioxidant capacity test (TEAC) and oxygen radical absorbance capacity assay (ORAC). For both assays, results will be expressed as millimoles of Trolox equivalents per liter. The effect and their interaction on the response variables will be determined by ANOVA. Tukey's test will be used for the comparison of the means. Values of p<0.05 will be accepted as statistically significant. Human inflammatory cytokines and chemokines will be analyzed by using a panel of 12 pro-inflammatory cytokines as a conventional ELISA protocol all at once under uniform conditions. The cytokines and chemokines represented by this array will be IL1A, IL1B, IL2, IL4, IL6, IL8, IL10, IL12, IL17A, IFNg, TNFa, and GM-CSF. Plasma activities of both enzymes, glutathione peroxidase (GPx) and superoxide dismutase (SOD) will be determined in baseline samples and after 6-mo, by using an ELISA (enzyme-linked immunosorbent assay) based upon a sandwich assay principle and can be used to detect levels of SOD as low as 0.066 ng/mL and 1.56 ng/mL for GPx.
This study evaluates the impact of elective regional lymph node irradiation on N1 breast cancer patients receiving post-lumpectomy radiotherapy and anthracycline plus taxane (AT)-based chemotherapy. We randomly assign patients having one to three metastatic lymph nodes (pN1) after breast-conserving surgery (BCS) and AT-based chemotherapy to undergo either whole-breast and regional nodal irradiation (WB+RNI group) or whole-breast irradiation alone (WBI group).
This trial studies how well a decision aid website works in helping to make decisions about fertility in participants with cancer. Decision aid websites that provide information about fertility preservation (maintaining your ability to have children of your own after cancer treatment) may help participants with cancer make fertility-preservation decisions.
The purpose of this study is to invite all people diagnosed with cancer who meet the eligibility criteria to complete questionnaires before their treatment begins and at regular intervals over time to assess the impact of cancer and its treatment on people's lives in the short, medium and long term. We will explore a range of factors to determine their role in both recovery of health and well-being and self-management. Although it is known that people who have had cancer are likely to experience a number of physical and psychological problems as a result of the disease and treatment, it is not known what the 'typical' course of recovery of health and well-being looks like, how long it takes and how this can be influenced. We will determine pathways to recovery of health and well-being following cancer diagnosis (initially breast cancer diagnosed <50 years, Non-Hodgkin Lymphoma and gynaecological cancers) and identify what factors influence this. This includes assessing the relative importance of the person's illness, personal attributes, perceived burden of treatment, role of the environment they live in, including health / social care and personal networks of support, and their ability and capacity to self-manage. We will identify who is most at risk of problems and what environmental supports and resources people are able to mobilise to support their self-management. We will also explore who has the confidence and ability to manage during and beyond treatment and what factors influence this and whether this leads to earlier problem resolution and restoration of health and well-being. This knowledge will be used to develop and test future supportive interventions to enhance the rapid recovery of health and well-being - our long term aim being to design ways of helping people with cancer in areas we identify as problematic for them.
Women who have undergone breast cancer surgery may develop swelling of the arm on the side the breast cancer occurred. If the swelling becomes chronic it is called lymphedema. This study will examine the effect of a 12-week decongestive progressive resistance exercise with advanced compression on breast cancer related lymphedema. Our objective is to determine if breast cancer survivors are willing and able to wear advanced compression while exercising and if the combination will help to reduce their lymphedema. Twenty-four breast cancer survivors from Edmonton, Alberta will be enrolled in the one-year long study.
This is a study to investigate the potential clinical benefit of G1T38 as an oral therapy in combination with fulvestrant in patients with hormone receptor-positive, HER2-negative metastatic breast cancer. The study is an open-label design, consists of 2 parts: dose-finding portion (Part 1), and expansion portion (Part 2). Both parts include 3 study phases: Screening Phase, Treatment Phase, and Survival Follow-up Phase. The Treatment Phase begins on the day of first dose with study treatment and completes at the Post-Treatment Visit. Approximately, 102 patients will be enrolled in the study.
The goal of this study is assess the safety and tolerability of the IRX-2 regimen in patients with early stage breast cancer (ESBC) and to estimate the pathologic complete response rate to neoadjuvant anthracycline-based and non-platinum containing chemotherapy in patients with triple-negative breast cancer who have received the IRX-2 Regimen before chemotherapy.
In this study positron emission tomography (PET/CT) imaging will be used to evaluate proliferative activity in sites of metastatic disease using the investigational radiotracer [18F]fluorothymidine (FLT).
In this study, positron emission tomography (PET/CT) imaging will be used to evaluate estrogen receptor (ER) activity in sites of metastatic disease using the investigational radiotracer [18F]fluoroestradiol (FES).
In this study, positron emission tomography (PET/CT) imaging will be used to evaluate sigma-2 (σ2) receptor activity in sites of primary breast cancer using the investigational radiotracer [18F]ISO-1.