“…Haematopoietic growth factors (Nemunaitis et al , 1990; Weisdorf et al , 1995), either granulocyte colony‐stimulating factor or granulocyte–macrophage colony stimulating factor, modification of the host immunological status (Ljungman et al , 1996), infusion of autologous frozen stem cells (Mehta et al , 1996; Fouillard et al , 1998) or donor leucocytes (Godder et al , 1998; Remberger et al , 1998), and second allogeneic SCT are the main therapeutic options that can be proposed in case of graft failure. Data on second allogeneic SCTs in this context are scarce (Davies et al , 1994; Miniero et al , 1996; O'Donnell et al , 1997; Grandage et al , 1998), especially in patients with malignant diseases. A recent retrospective study from the Seattle group, including 44 patients with AA who received a second transplant for graft failure between 1970 and 1996, has confirmed that a graft‐versus‐host disease (GVHD) prophylaxis combining cyclosporin A (CsA) and methotrexate was a major predictor of outcome after second transplant (Stucki et al , 1998).…”