Clinical Research Directory

Risk Factors Associated With the Absence of CMV-specific Cellular Immune Response in the Early Post-transplant Period in Low-risk CMV-seropositive Kidney Transplant Recipients

The goal of this observational study is to identify risk factors associated with the absence of CMV-specific cellular immune response in low-risk CMV-seropositive kidney transplant recipients in the early post-transplant period. The participant population includes adult CMV-seropositive kidney transplant recipients who did not receive antithymocyte globulin (ATG) induction therapy and underwent QuantiFERON-CMV testing within the first 45 days after transplantation. The main question it aims to answer is: \- Is it possible to predict which patients will fail to develop a CMV-specific cellular immune response before day 45 post-transplant in the absence of directly available immune assessment techniques? Researchers will compare patients with reactive QuantiFERON-CMV results to patients with non-reactive or indeterminate results to identify factors associated with the absence of CMV-specific cellular immune response. Participants will have retrospective clinical and laboratory data collected from medical records.

Infectious Complications in Hematological Patients Under Treatment With Bispecific Antibodies.

This is a prospective, multicenter, observational cohort study involving patients with hematologic malignancies who are receiving bispecific antibody therapy. The primary objective of this study is to evaluate the incidence, type, and severity of infectious complications in hematologic patients undergoing treatment with bispecific antibodies. Secondary objectives include identifying risk factors associated with infection, comparing infectious outcomes across different hematologic malignancies and BsAb types, and assessing the impact of infections on overall treatment outcomes.

Prospective Cohort Study of Complications and Outcomes in Cirrhosis

This is a multi-center, nested cohort study intended to investigate the prevalence, risk factors, and outcomes of complications in patients with acutely decompensated cirrhosis, especially focused on Cytomegalovirus (CMV) reactivation, bacterial infections, hepatic encephalopathy, and Hepatorenal syndrome. Patients diagnosed with acutely decompensated cirrhosis were enrolled. Upon enrollment, detailed baseline data were collected and samples were harvested. Complications were assessed during hospitalization. Post-discharge follow-up was conducted through telephonic interviews at Day 30 and Day 90.