Tacrolimus Blood Concentration and Transplant-related Outcomes in Pediatric HSCT Recipients

The goal of this retrospective observational study is to investigate any possible association among tacrolimus (TAC) blood concentrations, clinical efficacy and tolerability. Therefore, the main questions it aims to answer are: 1. to clarify which variables, how and to what extent influence daily TAC blood concentrations in pediatric allo-hematopoietic stem cell transplantation (HSCT) recipients; 2. to investigate the incidence of graft-versus-host disease (GVHD) and graft failure according to TAC exposure. Pediatric patients administered TAC to prevent GVHD after an allogeneic bone marrow transplantation.