Active clinical trials for "Neoplastic Cells, Circulating"

The purpose of this study is to develop a liquid biopsy approach for detection of circulating tumor cells (CTC) that could be used in place of the more invasive and potentially risky methods of tissue biopsy. The aims of the project are: (a) determine whether the Chaperonin-Containing TCP-1 (CCT) chaperonin can used to identify rare cancer cells in blood, and (b) establish whether the cancer cells detected using the CCT chaperonin for identification have invasive or metastatic potential.

Detection rate and isolation yield of CTC is low in squamous cell carcinoma of head and neck (SCCHN) with in vitro approaches rely on limited sample volumes. In this study, we applied a new method, the CellCollector, which could capture CTC in vivo from peripheral blood.

Circulating tumor cells (CTCs) have the potential to provide a surrogate for'real-time biopsy' of tumor biological activity. Enumeration and molecular characterization of CTCs in renal cancer could play an important role in diagnosis, predicting the risk for tumor recurrence, and providing novel target therapy biomarkers. In view of these facts, the investigators wanted to demonstrate the value of multiparameter flow cytometry in detecting human tumor cells of renal cancer in normal peripheral blood after cryosurgery with or without dendritic cell(DC)-cytokine-induced killers(CIK) treatment, and the investigators also compared the specificity with reverse transcriptase polymerase chain reaction (RT-PCR) method.

The purpose of this study is to identify circulating tumor cells in patients with solid tumors. Quantify and characterize these cells, collect patient information in regards to the patient's cancer. Develop a database and a sample repository where future analysis could be done.

Thyroid nodule patients with suggestion of fine needle aspiration biopsy (FNAB) offered by ultrasound are enrolled in the study. CTCs tested by Optimizing method and FNAB will be performed simultaneously. This is a double blind trial which pathologists and inspectors of CTCs don't know the result of each other. Surgical pathology and diagnostic results of FNAB is the primary endpoint and comparison will be made to see if CTCs combined with ultrasound can get similar diagnostic performance as FNAB. The diagnostic results of FNAB included Bethesda class II and more than V which are defined as benign and malignant, respectively.

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.

Monitoring of circulating endothelial cells (CEC and mature cells called progenitors called CEP) or circulating tumor cells (CTC) in adult patients with metastatic cancer, possibly treated with targeted therapy.

Circulating tumor cells (CTCs) have the potential to provide a surrogate for'real-time biopsy' of tumor biological activity. Enumeration and molecular characterization of CTCs in prostatic cancer could play an important role in diagnosis, predicting the risk for tumor recurrence, and providing novel target therapy biomarkers. In view of these facts, the investigators wanted to demonstrate the value of multiparameter flow cytometry in detecting human tumor cells of prostatic cancer in normal peripheral blood after cryosurgery with or without dendritic cell(DC)-cytokine-induced killers(CIK) treatment, and the investigators also compared the specificity with reverse transcriptase polymerase chain reaction (RT-PCR) method.

Fifteen cohorts will be opened. Each cohort will explore one analysis method and/or tumoral type. Up to 50 patient can be included into each cohort.

It is hypothesized that circulating tumor cells (CTCs) from pancreatic adenocarcinoma are released into the peritoneal cavity through blood lost during the surgical resection of these tumors resulting in peritoneal recurrence despite appropriate surgical resection. Targeting the mechanisms responsible for CTC adhesion to the peritoneum may result in inhibition of implantation and growth, thus preventing this mode of pancreatic cancer recurrence postoperatively.