View clinical trials related to Circulating Tumor Cell.
Filter by:On the basis of previous retrospective studies, the Task Force will further optimize the CTCs longitudinal surveillance model and initially validate the subclonal origin (CTC-DNA) of recurrent/metastatic foci derived from CTCs at the molecular level in hepatocellular carcinoma, prospective clinical trials will be conducted to further validate the predictive value of the CTCS longitudinal monitoring model in predicting postoperative recurrence of hepatocellular carcinoma, and to verify whether it is earlier than imaging to indicate recurrence, to explore the clinical feasibility of CTCs in guiding postoperative adjuvant therapy of liver cancer, and to provide new ideas for early intervention strategy of liver cancer after operation, to establish a set of standardized clinical scheme of auxiliary treatment for patients with liver cancer after operation for accurate and individualized"Early diagnosis and treatment".
The role of this transversal study is to assess the specificity and sensitivity of liquid biopsy to detect circulating cells tumor of adenocarcinoma of the ethmoid. Blood sample of participants will be collected at the moment of the surgical procedure or recurrence diagnosis; immediately after surgery; at day 8-10; at month 2-3 of postoperative follow-up. Two comparison groups will be studied: one age and gender-matched group and one professional exposure-matched group to assess the sensitivity and specificity of liquid biopsy
In this monocentric randomized controlled trial, 120 potential non small cell lung cancer (NSCLC) patients for which tissue diagnosis and material for next generation sequencing (NGS) is required for clinical management will be approached the day of their endobronchial ultrasound to participate in the study. They will be randomized to 2 vs 3 passes/lymph node and will all undergo liquid biopsy. The co-primary outcomes are 1)the rate of obtention of adequate material for NGS testing with 2 vs 3 passes/lymph node and 2)the percentage of patients for which liquid biopsy allows to identify clinically pertinent findings not available from tissue biopsy
This study enrolled patients who underwent R0 resection of tumor and had elevated tumor biomarkers (CEA, CA19-9). After enroll the study, a CTC test will performed and patients who had positive CTC will be randomly assigned to two groups. The control group will continue follow-up until radiological recurrence appear, the treatment group will start treatment or change the current adjuvant regimen. First endpoint is OS. The secondary endpoint is DFS, adverse event.
This study enrolling patients with metastatic colorectal cancer. Detecting CTC at different points in the treatment process. Descripting the molecular atlas of CTC in mCRC patients. Building and validating a response prediction system of mCTC patients.
Detecting circulating tumor cells from I-IV stage colorectal cancer patients pre-and post-operatively. Analyzing the morphology and biomarkers of CTCs and builting prognosis predicting model based on the morphology and biomarkers of CTCs. Verifying the prognosis model by the survival data.
Early diagnosis of malignant tumors is pivotal for improving their prognoses. Circulating tumor cells (CTC) in peripheral blood and Volatile organic compounds (VOCs) in exhaled breath are newly developed diagnosis method. Due to the low percentage of CTCs in peripheral blood of cancer patients and the surface structure of lymphocytes (especially megakaryocytes) is often confused with tumor cells, CTC has a high false positive and negative rate. In recent years, the detection of volatile organic compounds (VOCs) in exhaled breath as a simple and noninvasive method has shown broad application prospects in the diagnosis of various diseases. A series of studies of VOCs diagnosing solid tumors the investigators had conducted in the past decade show that VOCs can not only distinguish different types of tumors, but also can make a distinction between different stages. This study was to compare CTC and VOCs with clinical samples. Predictive models will be built employing discriminant factor analysis (DFA) pattern recognition method. Sensitivity and specificity will be determined using leave-one-out cross-validation or an independent blind test set.
This study aims to define the impact of the sequence of vessel interruption on change in CTC and CTC clusters density in the tumor-draining pulmonary vein between the period before surgical manipulation and before tumor-draining vein interruption.