RevErsing Poor GrAft Function With eLtrombopag After allogeneIc Hematopoietic Cell trAnsplantation

Poor graft function (PGF) after allogeneic hematopoietic cell transplantation (allo-HCT) is a misunderstood complication associated with poor outcome and limited therapeutic options. Despite the lack of standardized diagnostic criteria, PGF is commonly defined as follows: one or several significant cytopenias after allo-HCT persisting or developing after allo-HCT despite full donor chimerism and in the absence of relapse or other causes. Not only PGF can alter patients' quality of life by leading to recurrent transfusions, bleeding events and infections, but it is also associated with poor survival after allo-HCT. Although PGF is relatively frequent, there is no well-codified behavior in the literature or in the recommendations issued by the various learned societies of transplantation. The aim objective of the investigator's study is to demonstrate that eltrombopag improve PGF after allo-HCT