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Browse 4,817 clinical trials for breast cancer. Find studies that match your criteria and connect with research centers.
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NCT04165512
Lymphedema is a condition characterized by generalized or regional accumulation of protein-rich interstitial fluid as a result of impaired lymphatic circulation due to congenital or acquired disorders. Lymphedema is diagnosed through evaluations of its clinical criteria. Lymphedema is mostly evaluated through arm circumference measurements, water displacement measurements, tonometry, bioimpedance analysis, ultrasonography (US), computed tomography, lymphoscintigraphy and magnetic resonance imaging (MRI). Targets in the treatment of lymphedema include controlling the symptoms and preventing complications. A multimodal technique called complete decongestive therapy (CDT) is considered the gold standard of the treatment of lymphedema. In the literature, there are also studies showing that stellate ganglion block in breast cancer-related lymphedema treatment improves lymphedema and symptoms. Cervical stellate ganglion block is an invasive method used for the diagnosis and treatment of sympathetic pain and symptoms of upper extremity. Although it can be performed with fluoroscopy, CT and MRI, there has been increasing interest in ultrasound-guided technique since it has been fast, easy and cost-effective for the last few years. However, there are limited studies to provide sufficient evidence for the use of stellate ganglion block as an alternative treatment for lymphedema and detailed studies are needed in this area. The aim of this study is ultrasonographic evaluation of the efficacy of stellate ganglion block in the treatment of patients with breast cancer related lymphedema that is resistant to conservative treatment methods .
NCT03164863
Millions of cancer patients every year receive chemotherapy with only a 20-60% probability of pathological response, while most experience adverse side effects that lower quality of life without prolonging it. Reliable identification of ineffective therapies can eliminate needless human suffering while increasing overall probability of positive response to treatment. Chemotherapy resistance profiling entails testing whether a patient exhibits strong resistance to a therapy prior to its final selection by the oncologist. However, there are no effective methods for quickly assessing patient chemotherapy resistance. Patient Derived Xenograft (PDX) models have replaced older Chemotherapy Sensitivity and Resistance Assays (CSRAs) to some degree, but both technologies suffer from long testing times, high cost, and/or low accuracy. Motility Contrast Tomography (MCT) has recently emerged as a technology that measures the biodynamic response of intact tumor biopsies to applied therapeutics by using Doppler detection of infrared light scattered from intracellular motions inside living tissue. Several small scale animal, xenograft, and human studies have shown this phenotypic profiling technique to be highly accurate in prediction of response and resistance to chemotherapy. This project will be the first human trial of biodynamic phenotyping to predict chemotherapy response among breast cancer patients. Specifically, the study cohort will include patients selected for neoadjuvant chemotherapy treatment, because this setting offers the opportunity for near-term outcome measurement at the time of post-chemo surgery. Pre-therapy fresh tumor specimens will be imaged using MCT, and the resulting bio-dynamic signatures will be compared to confirmed pathological response at the time of surgery. Observation of a high predictive value will provide the basis for expanded clinical trials and prompt commercialization of a biodynamic chemotherapy selection assay for breast and other cancer patients.