View clinical trials related to Neoplastic Cells, Circulating.
Filter by:In resectable gastric cancer participants who received curative surgery, to early and more accurately detect peritoneal carcinomatosis or occult metastasis is important. Also, investigators will look at CTC numbers in different timings after operation, to investigate the possibility of early detection for peritoneal carcinomatosis or occult metastasis. Also, this study will correlate the relationship of CTC and participants' survival.
ACT-MBC prospectively assesses the impact of CTCs on treatment decisions, response assessment and prognosis in MBC patients.
Early non-small cell lung cancer (NSCLC), treated by surgery or radiotherapy in the case of inoperability, relapses in almost 50% of cases. Circulating tumour cells (CTCs), which can be detected before surgery, represent a promising prognostic tool, but the markers characterising their aggressiveness remain to be determined. The NSCLC microenvironment, in which purinergic signalling is a key pathway, controls tumour development. Adenosine derived from the action of CD39 and CD73 ectonucleotidases hydrolysing extracellular ATP, induces immunosuppression of NSCLC by activating A2R receptors. The expression and prognostic relevance of A2R, CD39 and CD73 on CTCs is unknown. The objectives are to (i) compare the expression of A2R and CD39 and CD73 on primary tumour cells and CTCs of patients operated on for early NSCLC, (ii) correlate these data with molecular characteristics and clinical response, (iii) determine on lung cancer lines whether irradiation impacts on the expression of A2R, CD39 and CD73. This work could contribute to the identification of new theranostic biomarkers.
A prospective study was used to collect patients considering breast cancer admitted to our general surgery department from 2019-6 to 2023-8, to identify the case group (breast cancer) and the control group (non-breast cancer), to compare the differences in CTC in peripheral blood between the two groups, and to draw conclusions after statistical analysis.
The goal of this observational study is to validate and evaluate the clinical feasibility of using a 3-D cell culture model for CTCs isolation/purification and their cell number expansion in cancer patient with transitional cell carcinoma and patient without cancer. This project first aims to study the clinical feasibility of utilizing a 3-D cell culture model for the isolation/purification of all possible CTCs in a blood sample in a label-free, viable, and high-purity manner. Through 3-D CTC culture, moreover, the cell number of CTCs can be adequately expanded. All these advantageous features are beyond what is currently possible by using the existing methods. In addition, the harvest of CTCs with above features is found valuable for the subsequent academic researches or clinical studies (e.g. molecular mechanisms underlying cancer metastasis, cancer-related gene mutation, biomarker discovery, and particularly CTCs-based chemotherapy drug testing). These could both facilitate and accelerate scientists to develop new therapeutic solutions for future cancer care.
To determine whether the presence of circulating/disseminated tumour cells (CTCs/DTCs) in the blood and bone marrow of the resectable lung cancer (NSCLC) patients is a negative prognostic factor, and to find correlations with other clinical/pathological disease characteristics.
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
The goal of this study is to establish the value of Circulating Tumour Cell (CTC) positivity in predicting post-RP treatment failure, including BCR and new lesions detected by cancer imaging. We plan to recruit participants who will undergo Radical Prostatectomy (RP). Participants will have their blood samples taken just before surgery and 3 months after the surgery to test for CTCs. Then participants will be followed-up for cancer progression information at 3 month intervals for the first year then yearly intervals after that. Their PSA will be observed over time.
To investigate the effects of perioperative anesthetic drugs propofol and desflurane on circulating tumor nucleic acids (CK7, ELF3, EGFR and EphB4 mRNA) in the blood of patients with liver cancer, so as to provide scientific reference for clinical anesthesia in the perioperative treatment of tumor
A variety of in vivo experimental models have been established for the studies of human cancer using both cancer cell lines and patient-derived xenografts (PDXs). In order to meet the aspiration of precision medicine, the in vivo murine models have been widely adopted. However, common constraints such as high cost, long duration of experiments, and low engraftment efficiency remained to be resolved. The chick embryo chorioallantoic membrane (CAM) is an alternative model to overcome some of these limitations. The chick CAM is shown to be a robust model for both the inoculation of cell lines and grafting of patient tumors for drug therapy evaluations and target genes/pathways analysis. The start-up INOVOTION has developed a unique, highly sensitive and reproducible CAM assay to graft human cancer cells/tumors in the chicken egg environment. INOVOTION's technology was validated for over 55 human tumor cell lines, including carcinomas, gliomas and melanomas, as well as over 30 reference drugs currently on the market. At INOVOTION, the graft of human cancer cells on the chicken CAM is currently conducted manually. To scale-up, the process was recently automated. The automation performance was assessed on cancer cells lines. The objective of this study is to demonstrate that the automation of the INOVOTION process enables tumors' proliferation using patient samples (from tumor samples or circulating tumor cells) as grafting material.