View clinical trials related to Neoplastic Cells, Circulating.
Filter by:Serious concern about the role of anesthesia in tumor recurrence has considerably risen over years, but the lack of surrogate markers for tumor spreading made trials addressing this issue difficult to realize. In breast cancer patients CTC positivity has been recently recognized as an independent prognostic factor. In this respect, we postulated that in a first step changes in the number of CTC after general anesthesia would help to determine the effect of anesthesia on this tumor marker.
Patients with metastatic breast cancer considered HER2 negative are screened for HER2-amplified circulating tumor cells. If at least HER2-amplified circulating tumor cell is detected, patients are treated by Trastuzumab - Emtansine (T-DM1) in a single arm phase II with an adaptive design.
Objective: To test the sensitivity of a proprietary novel filtration device designed to capture and concentrate circulating tumor cells (CTCs).
Despite the availability of several preoperative diagnostic techniques, accurate pretreatment staging of esophageal cancer (EC) remains challenging. Therefore, The investigators evaluated the prognostic significance of circulating tumor cells (CTCs) in patients with EC.
The purpose of this study is to establish the circulating tumor cell (CTC) assay as a surrogate for tissue diagnosis of suspected primary lung cancer. This is done through evaluating clinical and molecular markers to stratify the outcome/survival in patients with thoracic malignancies treated at Yale University/Yale-New Haven Hospital, University of California San Diego/Moores Cancer Center, Billings Clinic Cancer Center.
The detection and quantification of Circulating tumor cells CTCs in peripheral blood of patients with prostate adenocarcinoma may be useful at least for: Getting a correct stratification of patients with high-risk prostate cancer (PCa). Set the prognosis at baseline. Evaluate the response to different treatments (predictive value and monitoring). Establish individualized therapies.
Primary endpoint To observe the dynamic changes of CTC during the process of platinum based chemotherapy in advanced NSCLC. To study the relationship between CTC count and clinical outcome of chemotherapy (ORR and PFS). Secondary endpoint To study the relationship between CTC and overall survival. To study the molecular feature of CTC, such as epidermal growth factor receptor (EGFR), KRAS, CD117, etc.
The purpose of this research study is to determine if the EGFR mutation can be detected in CTCs. CTCs are cancer cells that are shed from solid tumors and float freely in the bloodstream. A device called the CTC-chip has been developed to find CTCs in the blood of patients with cancer. This is an experimental device. Using this device, the investigators will test participants' blood to try and find CTCs with the EGFR mutation and compare them with the results from the biopsy your doctor has recommended. The long-term goal of this research is to develop a way to test for the EGFR mutation that is less invasive than a tumor biopsy.
The purpose of the study is to determine whether the type of anesthesia during breast cancer surgery has any impact on the way a patient's immune system functions for a brief period after surgery. If the investigators find that one type of anesthesia versus the other is more beneficial to a patient's immune system, then the investigators may use this information to design a larger study to exam the effect of anesthesia better.
The purpose of this study is to determine whether the quantitative detection of circulating tumor cells (CTCs) in patients with Epcam expressing tumors can be used compared to standard qualitative method - cytology both in the cerebrospinal fluid of patients, clinically suspected for leptomeningeal metastases.