Active clinical trials for "Neoplastic Cells, Circulating"

Very few factors may be identified as prognostic for patients with bladder cancer undergoing radical cystectomy. Recently, detection of circulating tumor cells has shown to be very promising in anticipating both the likelyhood of distant metastases and survival in patients with breast cancer, melanoma, prostate cancer and other malignancies. In the present study we both tested the detection rate of circulating tumor cells using a PCR based methodology in the peripheral blood of patients undergoing radical cystectomy, and we further correlated our results with their clinical outcome.

The purpose of this study is to isolate and measure circulating tumor cells in the blood stream to advance detection of cancer and treatment monitoring. In this study, the investigators will utilize the novel technology for circulating tumor cell detection in order to evaluate their presence in patients with lung cancer.

Response evaluation with FDG-PET and free circulating DNA in patients with inoperable lung cancer of non small cell type during first treatment with chemotherapy or immunotherapy.

This study aims to evaluate the prognostic value of circulating tumour cells (CTC) in patients undergoing cytoreductive surgery and hyperthermic intraperitoneal chemotherapy due to gastrointestinal cancers that have spread to the peritoneum.

The investigators propose to survey the frequency of HER2 (+) CTC in order to lay groundwork for future clinical trials incorporating Her-2 targeted agents in gastric cancer.

The purpose of this study is to determine whether or not CTCs can be detected in blood samples taken from patients diagnosed with small cell lung cancer. The purpose is to compare CTC analysis to tumor samples to look for differences.

This study will determine whether a new diagnostic test called the Cell Search Assay can detect circulating colon cancer cells in patients who have had surgery for colon cancer and had visible cancer removed. Other parts of the study will look at whether the presence of the circulating tumor cells in blood predicts whether a patient will have their colon cancer return.

All consecutive patients with liver cirrhosis, with clinical and imaging features suggestive of Hepatocellular Carcinoma (HCC) attending the Department of Hepatology, Institute of Liver and Biliary Sciences (ILBS) from February 2017 to December 2018 will be evaluated for inclusion.Based on the previous years data of HCC patients admitted to ILBS. Cirrhotic patients aged 18-70 years, with HCC proven by typical radiological features of arterial enhancement and delayed wash-out, on one or both of dynamic Computerized Tomographic or dynamic Magnetic Resonance Imaging (MRI), as per updated American Association for the Study of Liver Disease (AASLD) guidelines (details in appendix1). Age and gender matched patients with cirrhosis, but without HCC, seen during the same study period will serve as controls. Patient characteristics, etiology of cirrhosis, and liver function parameters will be noted. Investigator will stage the included patients as per the Barcelona Cancer of Liver Cancer (BCLC) criteria (details in appendix1). Investigator will then estimate Circulating Tumor Cells (CTC) and cfDNA in peripheral blood samples of the patients and controls.

The purpose of this study is to assess clinical utility of combined circulating tumor cell (CTC) and circulating tumor DNA (ctDNA) in the diagnosis of primary lung cancer.

Immunotherapy is probably, since the development of therapies targeting EGFR mutations or ALK rearrangement, the most attractive therapeutic perspective in the management of metastatic lung cancer. Among the compounds tested, the inhibitors of the immune checkpoint PROGRAMME DEATH 1 / PROGRAMME DEATH LIGAND 1 (PD-1/PD-L1) have been tested in numerous clinical trials with recently published positive results leading to the approval of one drug in the USA and an expanded access program for two drugs in France. PROGRAMME DEATH LIGAND 1 (PD-L1) expression by tumor cells is strongly associated with the response to such molecules so that the participation in various clinical trials is currently reserved for patients expressing this biomarker and therefore justifies a new invasive biopsy (bronchoscopic or CT-guided) representing a considerable drag on the access to these treatments. Circulating tumor cells (CTCs) isolated by Isolation by Size of Tumor Cells (ISET) offer a direct and non-invasive access to the tumor. It has already been demonstrated that molecular characterization (EGFR, ALK) on these blood samples is possible. We propose to demonstrate the feasibility of the analysis PDL-1 expression in these cells by immunocytochemistry. Myeloid-Derived Suppressor Cells (MDSCs) are immature myeloid cells that inhibit T cell functions and thus promote tumor growth. These cells frequently express PD-L1. We propose to test whether MDSCs level and its evolution during treatment with PD1 inhibitor is correlated to the response to these drugs. The main objective of this study is to demonstrate the feasibility of the analysis of PD-L1 expression on CTC