View clinical trials related to Neoplasms, Liver.
Filter by:It has well accepted that tumor angiogenesis present aberrant vascular architecture and functional abnormalities, which is associated with tumorigenesis, tumor propagation and progression. By locating, separating and tracking microbubbles, the recently introduced and upgraded Ultrasound Localization Microscopy (ULM) surpassed classical wave diffraction limit. However, the acquisition of structural and functional parameters of microcirculation in vivo for ULM is still confined by the compromise between the resolution and penetration depth. The relatively long acquisition time induced the difficulty of motion correction potentially, which hampers the preclinical to clinical application in organs with distinct tissue motion such as the liver. Therefore, we take the lead in studying human liver lesion microvasculature, which remains a challenge for noninvasive, quantitative and functional intravital imaging especially due to its deep-seated location and strong motion. We developed a Super-resolution Ultrasound (SR-US) imaging technique based on ULM to assess its feasibility of visualizing and quantifying microvasculature in human organs.
This is a multicenter, observational registry that follows patients for a total of 5 years from the date of the first liver ablation procedure with the NEUWAVE Microwave Ablation System.
Prospective, single-arm, multicenter study that will generate clinical data using the NEUWAVE MicroWave Ablation System with AC (Ablation Confirmation) software in patients undergoing ablation of a soft tissue liver lesion.
Most studies of cancer stem cells (CSC) involve the inoculation of cells from human tumors into immunosuppressed mice, preventing an assessment on the immunologic interactions and effects of CSCs. In this study, the investigators examined the vaccination effects produced by CSC-enriched populations from histologically distinct murine tumors after their inoculation into different syngeneic immunocompetent hosts. Enriched CSCs were immunogenic and more effective as an antigen source than unselected tumor cells in inducing protective antitumor immunity.Immune sera from CSC-vaccinated hosts contained high levels of IgG which bound to CSCs, resulting in CSC lysis in the presence of complement.CTLs generated from peripheral blood mononuclear cells or splenocytes harvested from CSC-vaccinated hosts were capable of killing CSCs in vitro. Mechanistic investigations established that CSC-primed antibodies and T cells were capable of selective targeting CSCs and conferring anti-tumor immunity.
Background: - Ablation is a procedure that heats tumor tissue to a high temperature to destroy it. Doctors perform this procedure by putting a probe in the tumor. This delivers heat to the site. Currently, doctors tell what area is heated by using the probe s manufacturer estimates. These estimates are imprecise. Doctors insert small needles to measure the temperature around the area being heated. Doctors also perform scans of the area, but these cannot show which tissue has been heated and which has not. Right now, only contrast scans can show that. But researchers have developed software that uses images from routine scans to create a temperature map. They want to test the software to see if doctors can monitor the procedure without using more needles and without contrast scans. Objectives: - To test software that might help doctors perform ablations better in the future. Eligibility: - People over 18 years of age already scheduled to have an ablation. Design: - Participants will be screened with a medical history. - Participants will visit the clinic for their already-scheduled ablation. The doctor will use the study software to analyze the temperature in the area being heated. The software will not come into contact with a participant s body. - Participants will undergo scans that are necessary for the procedure, but one or two additional scans may be done as part of this study.
The purpose of this study is to prospectively compare percutaneous radiofrequency ablation (RFA) versus percutaneous laser ablation (LA) for the treatment of small hepatocellular carcinoma in patients with cirrhosis.
To evaluate the safety, toxicity and immunological effects of adjuvant administration of an experimental therapy consisting on priming with three intramuscular administrations of a plasmid expressing human AFP (phAFP) together with a plasmid expressing human GM-CSF (phGM-CSF), followed by a single intramuscular boost with an AFP adenoviral vector (AdVhAFP) to patients with locoregionally pre-treated hepatocellular carcinoma (HCC).
The primary purpose of this study is to determine the maximum tolerable dose (MTD) and/or the maximum feasible dose (MFD), as well as to evaluate the safety of JX-594 (Pexa-Vec) injected within hepatic carcinoma tumors.