View clinical trials related to Breast Cancer.
Filter by:The purpose of the study is to evaluate the use of a circulating tumor DNA (ctDNA) assay, ie, a "liquid biopsy," as a tool to identify triple-negative breast cancer (TNBC) patients who will or will not experience benefit from treatment with capecitabine. Participants will be monitored for changes in ctDNA in the blood over time received during capecitabine treatment. Results of ctDNA analysis will be correlated to genetic characteristics of individual tumors. This may inform future clinical trials in which patients could receive a different treatment than capecitabine to reduce their risk of breast cancer relapse.
Neoadjuvant chemotherapy (NAC) is the first line treatment for locally advanced breast cancer (BC). Besides making breast conserving surgery feasible, its main aim is to achieve a pathological complete response (pCR). Previous studies demonstrated that a pCR correlated with a higher disease-free survival. Tumor response may vary among different BC subtypes and only 30% of BC respond completely to NAC. Treating chemo-resistant disease with NAC may cause patient harm due to drug toxicity and surgery delay. It is therefore very important to promptly identify those women who will not benefit from NAC. Mammography and ultrasound proved ineffective in monitoring changes in lesion size due to therapy-induced fibrosis. MRI is the most accurate imaging technique for assessing early clinical response by measuring tumor size, however its accuracy is lower post NAC. This necessitates the need for a new technique able to non invasively assess the effectiveness of NAC. Optical techniques are sensitive to the biological changes that occur within the tumor after NAC administration. These changes occur prior to tumor size reduction. Optically estimated total hemoglobin concentration correlates with the histological analysis of vasculature as well as with tumor-associated angiogenesis which can affect tumor changes during NAC. Other promising biomarkers related to tissue composition (water, lipid, collagen content) and structure (scattering) may also be evaluated by optical techniques. The aim of the study is to monitor the effectiveness of NAC in BC patients with a near infrared spectroscopic imaging platform which allows to non-invasively detect changes in vascularization and size of BC and to characterize the presence of temporal changes in regional concentrations of relevant biomarkers (oxy- and deoxyhemoglobin, water, lipid and collagen concentration, scattering) within tissue during NAC. This optical imaging technique will provide a non-invasive, safe and relatively inexpensive tool to monitor patients' response to NAC and to predict their outcome.
The DISCO App is designed to improve, during the interaction, patient active participation and patient-initiated oncologist treatment cost discussions, and, in the short term, patient's treatment cost knowledge, self-efficacy for managing both cost and physician interactions, referrals, perceived financial toxicity (i.e., distress and material hardship); in turn, these will affect longer-term outcomes of financial toxicity and adherence.
This study is a Non-Interventional Study (NIS) with secondary data usage. It is designed as a multi-center retrospective cohort study in which the data of adult locally advanced HER2-positive breast cancer patients, who are treated with as neoadjuvant therapy, who underwent breast surgery in participating centers, were taken from hospital records. The source population is academic or community oncology centers treating patients with breast cancer from Turkey. The study population is planned to be the subgroup of breast cancer patients, who are treated with trastuzumab plus taxane with or without pertuzumab as neoadjuvant therapy, and underwent breast surgery at the participating centers. The study is anticipated to include approximately 1500 patients from 20 sites.
The IMPACT Study seeks to refine and evaluate the effectiveness of interventions on improving guideline-adherent cancer risk management (CRM) and family communication (FC) of genetic test results for individuals with a documented pathogenic/likely pathogenic (P/LP) variant, and FC of family cancer history for individuals with a variant of uncertain significance (VUS) in an inherited cancer gene.
Immune checkpoint inhibitors given in monotherapy in advanced breast cancer have shown modest benefit in first-line, but very limited efficacy in later lines. Thus, combination therapies are needed. Response following anti-PD1/PD-L1 monotherapy is associated with large survival benefit in the advanced setting. Previous studies of the intrinsic subtypes have shown that Basal-like and HER2-E are associated with higher expression of immune-related genes or higher infiltration of stromal tumor infiltrating lymphocytes compared to the luminal subtypes. Immune infiltration in BC is associated with chemo/antiHER2 responsiveness and potentially benefit from anti-PD-1/PD-L1 inhibitors. In addition, one emerging biomarker of response to anti-PD-1 therapy is the tumor mutational burden (I.e. the total number of mutations per coding area of a tumor genome). The HER2-E and Basal-like profiles have been associated with high mutational burden. A range of studies have been initiated including several phase II/III studies evaluating atezolizumab in combination with different chemotherapeutic compounds routinely used in breast cancer, but none with predefined biomarker beyond the expression of PD-L1 by IHC
Study on the Value of Non-invasive Dual-Pet(18F-FES PET and 68Ga-HER2-Affibody PET) Information in Subtype of Metastatic Breast Cancer
This purpose of this study is to test if talazoparib is safe and evaluate its response to advanced breast cancer associated with mutation of gene called PALB.
Genetic testing is a type of test that detects changes to the genes-the DNA instructions that are passed on from the mother and father. The results of a genetic test can confirm whether the participant has a genetic disorder, which is a disease caused in whole or in part by changes to the genes. Genetic testing can also help determine a person's chance of getting or passing on a genetic disorder. Genetic tests use a sample of blood, hair, skin, or other tissue, and they can look at one gene or multiple genes at the same time. Genetic testing may change the options for treating people with certain types of cancer. For example, some medications are more helpful for the treatment of cancer in people with certain gene changes (mutations). The researchers are doing this study to develop new educational materials about genetic testing for people who speak different languages and have diverse cultural and educational backgrounds. During the study, the staff will interview participants with diverse cultural and educational backgrounds and ask them to review a sample of the educational materials that have been developed so far. Participants will give their opinions on these materials, and the researchers will use participants' feedback to improve the materials.
To assess whether the COVID-19 pandemic delayed breast cancer diagnosis in Taiwan, an Asian country with a low COVID-19 incidence.