View clinical trials related to BRCA1 Mutation.
Filter by:This is a combination retrospective/prospective observational study with two arms:
Women carrying harmful mutation in BRCA1 or BRCA2 gene are at higher risk to develop breast and/or ovarian cancer than the general population. Many observations lead to the hypothesis that breast cancer risk may be increased in women with elevated plasma insulin-like growth factor 1 (IGF-1) and insulin levels. Targeting the IGF system is therefore a promising anticancer therapy and a new tool for oncologists. Evidence from bio-gerontology research from our laboratories show that cycles of short-term fasting/starvation (STS) or low calorie diet can improve health span of laboratory animals, whose effect is partly mediated by reduced circulating IGF-1. Investigators in our group have demonstrated that protein consumption, especially animal proteins, increases IGF-1 level and is associated with elevated cancer risk in a US cohort ranging from age 50 to 65 (PMID: 26094889). It was also showed that alternating prolonged fasting and nutrient-rich medium extended yeast lifespan independently of the status of the established pro-longevity genes. Prolonged Fasting (PF) has also been shown in preliminary studies to decrease the side effects of chemotherapy, an effect now being tested in multiple larger randomized clinical trials (PMID: 26590477). The main hypothesis of this proposal is that a combination of protein restriction, fasting, fasting mimicking diet (FMD), and restriction of specific amino acids may be able to decrease cancer incidence in a cohort of people at high risk of developing tumors (BRCA1/2). Our group plan to verify the safety, effectiveness and impact of a specially formulated longevity dietary regimen (low protein fish- and plant-based) and of FMD repeated cycles on the levels of endogenous hormones in a cohort of people at increased cancer risk. Since the duration of the project will not give us the opportunity to directly measure cancer incidence in humans we will test: 1a) the variation of a number of widely recognized susceptibility biomarkers predictive of cancer incidence in a cohort human carriers of BRCA1/2 mutations in response to the dietary interventions; 1b) cancer incidence and progression in genetically engineered mice (K14Cre Brca1flox/flox Trp53+/flox and K14Cre Brca1+/flox Trp53-/- mice) predisposed to develop hereditary breast cancer in response to corresponding dietary interventions. Investigators will also test epigenetic alterations associated with these interventions in: 2a) DNA samples from muscle biopsies of a subgroup of humans; 2b) breast epithelial tissue in mice.
The primary goal of this research is to test a web-based genetic education intervention that is designed to educate men and women from hereditary cancer families about the personal relevance of genetic testing in order to help them male decisions about whether to pursue genetic testing. We will test this intervention against standard care for men and women from hereditary cancer families. The web-based educational intervention includes all of the information typically covered during genetic counseling. As a result, after completing the education intervention, participants can proceed directly to a brief telephone call with a genetic counselor followed by testing if they choose. A baseline survey will be administered prior to randomization and then follow-up surveys will be administered at 1-month and 6-months post-randomization. Primary outcomes will be completion of genetic counseling, uptake of genetic testing, genetic test results and quality of life.
Specific aim: To establish the proof of principle that treatment of "high breast cancer risk" women with recombinant human chorionic gonadotropin (r-hCG) will change their breast epithelium's high risk genomic profile to one similar to that identified in women with a history of early full first term pregnancy.
Study Purpose: A multicenter prospective study to evaluate the outcome of second breast cancer surveillance with abbreviated breast MR (AB-MR) or ultrasound (US) in addition to annual mammography in women with BRCA1/2 mutation testing Study Scheme: - AB-MR, US, and digital mammography will be performed on the same day and interpreted independently at baseline and then after 1 year. - After completion of study, patients are followed-up for at least 1 year.
The objective of this study is to expand genetic testing for hereditary breast and ovarian cancer syndrome to a broader population of high-risk women by prompting appropriate referrals from the primary care setting with the use of an electronic health record-embedded breast cancer risk navigation (BNAV) tool. To address patient-related barriers to genetic testing, the investigators developed a web-based decision aid, RealRisks, which is designed to improve genetic testing knowledge, accuracy of breast cancer risk perceptions, and self-efficacy to engage in a collaborative dialogue about genetic testing. The study design is a randomized controlled trial of patient educational materials and provider electronic health record (EHR) notice alone (control arm) or in combination with RealRisks and BNAV (intervention arm). The investigators hypothesize that combining the patient-centered RealRisks with the provider-centered BNAV will increase appropriate uptake of genetic counseling. The investigators also hypothesize that genetic counseling decisions will be more informed, and result in less decision conflict and improved shared decision making.
Mastectomy is a major surgery that can have a profound effect on women's psychosocial wellbeing, including elevated depression and body image distress. Reconstructive breast surgery aims to improve patients' psychosocial adjustment to mastectomy, yet for some women substantial distress persists after reconstruction. However, very little is known about risk or protective factors for persistent depression or body image distress following mastectomy with reconstruction. The present study aims to address this critical gap. In women undergoing mastectomy with breast reconstruction, the investigators will assess risk and protective factors for post-surgery depression severity and body image distress.
The purpose of this study is to learn how to provide BRCA gene testing to a larger number of people as well as to make testing part of a person's regular medical care.
The aim of this study is to determine general practitionners' role in management of women with BRCA1/2 mutation. This study will be conduct between April 2017 and December 2017 at Montpellier University Hospital on women followed-up in the department of genetics and their general practitionners (GP). Patients and their GP will be called by the investigators and questionnaire will be given to them. Questionnaire includes questions for patients and their GP. The primary endpoint was to determine the rate of GP having sufficient knowledge of the adequate management of patients with BRCA1 / 2 mutation. Adequate knowledge includes : systematic search for a family history of cancer, knowing criteria required to refer women in oncogenetic department, and the ability to respond to patients' questions. Secondary endpoint was to determine women' opinion on their GP : whether or not well managed for their BRCA 1 / 2 mutation.
Insulin-like growth factor I (IGF-I) and other markers of insulin resistance (IRm) might modulate the penetrance of BRCA genes mutation. The investigators have designed a demonstration project with BRCA mutation carriers (with or without a previous diagnosis of breast cancer) to test: 1. whether a lifestyle intervention significantly reduceIGF-I and the other IRm (randomized trial). 2. whether mutation carriers with a previous diagnosis of breast cancer have higher IRm than carriers without breast cancer (case-controlstudy). 3. whether IRm and their change over time affect subsequent breast cancer incidence and prognosis (cohort follow-up). The investigators expect to significantly reduce IGF-I and IRm, to find that BRCA mutation carriers with a previous breast cancer have higher IRm levels, and, in the long term, that women with persistent higher IRm levels have higher penetrance and worst prognosis. Confirming a significant reduction of IRm and the impact of their levels on prognosis would help to develop primary prevention recommendations for high risk families.