Active clinical trials for "Carcinoma, Hepatocellular"

This study is an international prospective, open-label, multi-center, non-interventional study. The protocol will allow enrollment of all patients with diagnosis of HCC in whom a decision to treat with sorafenib has not been made at time of study enrollment. All patients will be followed-up until withdrawal of consent, lost to follow-up, death, or the end of the study. Detailed information concerning the past medical/surgical history, performance status, methods of diagnosis and staging, etc. of patients with HCC will be collected, and practice patterns of the physicians involved in the care of patients with HCC under real-life conditions will be evaluated.

Background: Fibrolamellar Hepatocellular Carcinoma (FL-HCC) is a rare liver cancer. It usually occurs in young people who have no history of liver disease. Currently the only effective treatment option is surgery that removes the tumor and part of the liver. Researchers want to study the course of the disease to learn more about it. Objective: To collect samples from people with FL-HCC to learn more about the disease and help develop new treatments. Eligibility: People any age with FL-HCC Design: Participants must be enrolled on another NIH protocol. Participants will have at least 1 study visit. They will have: A medical and cancer history A physical exam A review of their symptoms and their ability to do normal activities Tests to produce images of the body. They may have a scan (CT) that uses a small amount of radiation. Or they may have a scan (MRI) that uses a magnetic field. These will examine the chest, abdomen, and pelvis. Blood tests Researchers will study previous tumor samples if they are available. If participants come to NIH for visits on other studies, data will be collected about their disease, tests, treatments, and responses. Tumor tissue will be collected if participants are having it taken for a procedure. All other participants will be contacted to collect this data. They will be contacted once a month for 1 year and 2 times a year after that. Participants will be asked to contact researchers when their health changes. They may come in for more tests.

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and the resulting coronavirus disease 2019 (COVID-19) have afflicted tens of millions of people in a worldwide pandemic. Considering its high mortality and rapid spread, an effective vaccine is urgently needed to control this pandemic. Recently, mass vaccination campaigns using newly approved vaccines, ranging from conventional viral and protein-based vaccines to those that are more cutting edge, including DNA- and mRNA-based vaccines are beginning in many parts of the world. Randomized clinical trials of different vaccines reported efficacies for preventing COVID-19 in the range of 50% to 95%. Although these randomized clinical trials are considered the "gold standard" for evaluating intervention effects, they have notable limitations of sample size and subgroup analysis, restrictive inclusion criteria, and a highly controlled setting that may not be replicated in a mass vaccine rollout. The aim of this study is to evaluate the safety, tolerability, immunogenicity, and efficacy of different vaccines against COVID-19 under real-world practice conditions.

Primary liver cancer or hepatocellular carcinoma (HCC) is the 7th most common cancer in humans; 9th in women (figures from the Association for Research against Cancer ARC). This cancer is a major public health problem on a global scale. Patients, whose diagnosis is often late, are at advanced stages of the pathology, even those who benefit from locoregional treatments have a poor prognosis and suffer from a lack of curative therapeutic strategies. CHC is highly refractory to cytotoxic chemotherapy and so far the response rates to conventional systemic chemotherapy has provided a clinical benefit where survival was prolonged by more than 25% in patients with advanced CHC. Further efforts are needed to effectively manage HCC. Knowledge of the mechanisms regulating proliferation and inhibiting the sensitivity of transformed cells to apoptosis is the key to the development of more effective therapeutic strategies. Several new therapies, called targeted therapies, are tested in clinical trials. Currently, the most effective molecular agent for targeting the Raf pathway is sorafenib capable of also inhibiting tyrosine kinases of VEGFR and PDGFR. Sorafenib, a multikinase inhibitor, decreases the proliferation of tumor cells in vitro that inhibit the activity of targets present in tumor cells (CRAF, BRAF, V600E BRAF, c-KIT, and FLT-3) and tumor vascularization VEGFR-2, VEGFR-3, and PDGFR-beta). Despite the real benefit of this treatment, its efficacy (three months of overall survival) and its indication remain limited to Child-Pugh A, WHO 0-2 patients in whom curative treatment is contraindicated. In addition, several patients have resistance to Sorafenib and thus find themselves in therapeutic failure, thus limiting the therapeutic choice for these patients. Resistance to treatment with Sorafenib limits the therapeutic choice. The mechanisms responsible for this resistance remain to be elucidated. Drug resistance proteins, MDR Multi-Drug Resistance, is a family of molecules whose expression increases in the cancer cell and ensures the repression of chemotherapy molecules outside the target cancer cell. This family includes the proteins ABCG2, MDR and MRP1. Our in vitro studies show that treatment of CHC Huh-7 cells with Sorafenib (10 mM) induces the specific expression of the transcripts of the MRP-1 protein without any effect on the expression of the ABCG2 and MDR protein. In addition, sorafenib has an effect on the expression of hepatocyte SLAMF3 receptor transcripts, a receptor recently identified in hepatocyte tissue. Indeed, it has been shown that the expression of SLAMF3 is lowered in the cancerous tissue compared to the healthy tissue and that the reintroduction of a strong expression in the cancer cell inhibits its proliferation by inhibiting the MAPK Erk pathway, Cancer cells to apoptosis and inhibits the uptake of tumor masses in the Nude mouse (I. Marcq, et al., 2013).

The purpose of this study is to see if it is possible to establish a relationship between the blood flow and blood volume of liver tumors from CT body perfusion and the radiation dose deposited in the tumors from the radioembolization treatment as measured by PET/CT. The study will do this by: Measuring the blood flow and blood volume of tumors in the imaging data from a CT body perfusion Measuring the radioactivity in the tumors after the radioembolization treatment using PET/CT and then calculating the dose deposited in the tumor Using statistical analysis to assess the relationship between the dose and the perfusion parameters In addition, the research may help develop a method for calculating the dose of radioembolization to be delivered to a liver tumor(s) using blood volume and blood flow data obtained from the CT body perfusion scans.

This is a large-scale study in China to provide evidence and insights in the role of gender in LT for HCC by analyzing the data of 3769 recipients with HCC registered in the China Liver Transplant Registry.

This is a multi-center study in China to investigate the role of PIVKA-II in HCC recipient selection and prognostic stratification by analyzing the data of 522 recipients with HCC registered in the China Liver Transplant Registry.

To Calculate the amount radiation the lung receives in patients receiving Yttrium-90 for Liver Cancer.

This case-control study was conducted on 90 patients who were equally divided into two groups. Group 1 included 45 patients with HCV-related chronic liver disease without clinical or radiological evidence of HCC (control group), and Group 2 included 45 patients diagnosed to have HCC by Triphasic abdominal CT (patient group). Serum AFP and GP73 were measured using ELISA technique

The aim of this work was to describe SBRT different presentations, to study predictive factors for tumor responses following treatment, and to compare tumor response assessments according to the Response Evaluation Criteria