View clinical trials related to BRCA1 Mutation.
Filter by:IRFARPC is a multicenter national registry designed to study the diagnosis and predisposing factors of subjects with an inherited increased risk for pancreatic cancer.
The objective of this protocol is to develop an institution-wide liquid biopsy protocol that will establish a common process for collecting blood and corresponding archived tumor specimens for future research studies at the University Health Network's Princess Margaret Cancer Centre. Circulating cell-free nucleic acids (cfNA), including cell-free DNA (cfDNA) and cell-free RNA (cfRNA), are non-invasive, real-time biomarkers that can provide diagnostic and prognostic information before cancer diagnosis, during cancer treatment, and at disease progression. Cancer research scientists and clinicians at the Princess Margaret are interested in incorporating the collection of peripheral blood samples ("liquid biopsies") into research protocols as a means of non-invasively assessing tumor progression and response to treatment at multiple time points during a patient's course of disease.
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.
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.
This is a single center, non-randomized, open label phase II trial to evaluate the clinical and pathologic response of neoadjuvant cisplatin-monotherapy in BRCA1 positive patients. The study will enroll patients with diagnosed breast cancer with a BRCA1 mutation. Patients will be eligible if they have primary breast cancer (measured on mammogram and ultrasound or MRI) and confirmed histological diagnosis of invasive breast cancer by core biopsy. If axilla lymph nodes will be suspected then fine needle aspiration biopsy will be performed. Patients will be drawn from one of three oncology centers: Szczecin, Bielsko-Biała and Kraków. Patients will obtain staging investigations and will be monitored. Once entry criteria is met and consent obtained, all patients will obtain baseline staging investigation within 3 weeks of trial registration. Routine investigations will include staging scans: mammography, ultrasound of the breast and axilla (assessment of breast tumor and axilla lymph nodes), assessment of chest/abdomen/pelvis (plain film, Computed Tomography [CT] and/or ultrasound as per local standards) and baseline blood work (Complete Blood Count [CBC], electrolytes, creatinine, Liver Function Tests [LFTs], calcium, albumin). Once staging investigations are complete, all patients will be treated with cisplatin chemotherapy at a dose of 75mg/m2 every three weeks for a total of four cycles (4 cycles of neoadjuvant chemotherapy). Clinical response will be evaluated every three weeks by the treating physician while on chemotherapy (tumour of the breast and axilla lymph nodes). After four cycles of chemotherapy the patient will then undergo definitive surgery (mastectomy or breast-conserving surgery). Sentinel lymph nodes procedure will be performed. In case of positive lymph nodes standard lymph nodes surgery will be performed. Pathological complete response will defined as no evidence of residual tumor in the breast and the axilla. There may be evidence of ductal carcinoma in situ. The pathology will reviewed by two independent pathologists. Following surgery patients will receive standard adjuvant chemotherapy at the discretion of the treating physician and if indicated, the patient will also receive radiotherapy and/or hormonal therapy and/or adjuvant trastuzumab at the description of the treating physician.