Clinical Research Directory

Genotype and Subtype Mapping of the Hepatitis C Virus

Chronic hepatitis C virus (HCV) infection is the second leading cause of primary liver cancer worldwide and the leading cause in the United States. In 2020, an estimate 260,000 deaths were attributable to HCV globally, nearly 80,000 of which occurred in Europe, mainly due to complications such as cirrhosis or hepatocellular carcinoma (HCC). The CARTO-VHC study is a retrospective, observational, multicenter study based on data and samples collected during routine care from 2023 to 2024. The study does not involve direct human participation. The study aims to describe the different genotypes and subtypes of the hepatitis C virus, including unusual subtypes, in a large population of newly diagnosed HCV-positive patients. This will help identify the most common types circulating in France. Additionally, the study will provide a comprehensive understanding of therapeutic failures and drug resistance to direct-acting antivirals (DAA) in treated patients.

Predictors of Drug Resistant Epilepsy Among Pediatric Patients

1. This study aims to determine the main predictors of drug resistance in pediatric epilepsy by examining clinical data, EEG abnormalities, and neuroimaging results, in order to support early identification of resistant cases and improve treatment strategies . 2. Early introduction of new lines of treatment in case of refractory epilepsy as : Ketogenic diet , Rituximab and solumedrol

HIV Drug Resistance Among Individuals Failing Tenofovir/Lamivudine and Dolutegravir First Line Regimen in Brazil

Brazil was the first middle-income country to provide free and universal access to antiretroviral drugs to HIV infected individuals. Since 2014 local guidelines recommend that all HIV infected individuals be started on therapy regardless of CD4 count. Since January 2017, all patients are started on a DTG containing triple regimen. As of November 2018, 170,000 individuals were receiving DTG through the public health system. It is a public health priority to evaluate the risk of virologic failure and the subsequent development of INSTI resistance in these real-life settings. Our preliminary data from Brazil indicated a high virologic failure rate of 8% after 18 months of treatment TL+D. Our central hypothesis is that TDR may be associated and contribute to virologic failure with DTG in clinical practice. To test this central hypothesis, we will identify PLWH failing DTG containing regimens in Brazil. The insights generated with these studies will contribute to a more effective use of second generation INSTI in the future.

Real-world Observational Study of Targeted Therapy in Patients With Advanced ROS1-positive NSCLC

The purpose of this project is to conduct an observational study on the efficacy and safety of entrectinib in real-world patients with ROS1-positive NSCLC who have received entrectinib treatment, while exploring the mechanism of entrectinib's brain protection and resistance mechanism. Because this study is a non-interventional study, it will not interfere with your usual treatment. However, your medical data will be analyzed, and the results will help improve future treatment options for ROS1 positive NSCLC patients and improve their quality of life.This study was divided into three cohorts. Cohort 1: For patients with advanced ROS1-positive NSCLC who met the inclusion criteria and had not received TKI treatment, they were treated with entrectinib until disease progression or intolerance (N=15); Cohort 2: For patients with advanced ROS1-positive NSCLC who met the inclusion criteria and had received first-generation ROS1 TKI treatment with disease progression on crizotinib, they were treated with entrectinib until disease progression or intolerance (N=15); Cohort 3: For patients with ROS1-positive NSCLC who had failed multiple lines of treatment, they were treated with entrectinib until disease progression or intolerance (N=10). Regular follow-up was conducted and relevant clinical data were recorded, followed by Cox regression analysis and survival analysis. The information that needs to be recorded includes baseline and treatment genetic testing, demographic information, anti-cancer history, and concomitant medication use, as well as the use of study drugs and adverse events during treatment visits, survival and subsequent drug use after discharge, and the follow-up frequency consistent with clinical practice. Subjects are eligible for a complimentary NGS test upon the development of entrectinib resistance.