Bone marrow graft versus ALG in patients with aplastic anaemia.

Eighty-six successive patients with severe aplastic anaemia were admitted to this hospital between January 1976 and October 1982. They were treated and evaluated in a prospective study according to one protocol. 26 patients with an HLA identical sibling underwent bone marrow transplantation. Overall survival calculated according to Kaplan and Meier in this group is 47%, 60 patients without an HLA identical sibling were given antilymphocyte globulin with or without an infusion of HLA-haploidentical marrow. All these 60 patients received low dose androgens after the procedure. In this study the marrow infusion did not significantly improve the results and overall survival was 74% compared to 70% in patients receiving only antilymphocyte globulin and androgens. In a current pilot study combining ALG and high dose prednisone we were able to further increase remission rates. Between HLA-identical siblings we improved the results of marrow transplants significantly by the use of cyclosporin-A instead of methotrexate for prophylaxis against GvHD.