Transplantation of CD34+selected peripheral blood to HLA-identical sibling patients with aplastic anaemia: results from a single institution

Autor: E Monteagudo, Joaquín Martínez, Ignacio Lorenzo, Guillermo Sanz, G Martín, C Jiménez, M J Remigia, Federico Moscardó, Isidro Jarque, Miguel A. Sanz, Susana Cantero, J de la Rubia, Pau Montesinos
Rok vydání: 2005
Předmět:
Zdroj: BONE MARROW TRANSPLANTATION
r-IIS La Fe. Repositorio Institucional de Producción Científica del Instituto de Investigación Sanitaria La Fe
instname
ISSN: 0268-3369
Popis: We evaluated the use of CD34+ selected allogeneic peripheral blood as a source of hematopoietic progenitors for allogeneic transplantation in 11 patients with aplastic anemia ( AA). The median age was 17 years ( range, 6 - 49), and the median time between diagnosis and transplant 1 month ( range, 1 - 24). Conditioning consisted of cyclophosphamide ( 50 mg/ kg per day) on days -7 to -4 and antithymocyte globulin ( 30 mg/ kg per day) on days -4 to -2 in nine patients. Total lymphoid irradiation was added to the preparative regimen for two. Graft-versus-host disease (GVHD) prophylaxis consisted of cyclosporine A and prednisone. Median doses of CD34+ and CD3+ cells infused were 3.91 x 10(6) and 0.3 x 10(6)/kg, respectively. The median time taken to achieve a neutrophil count > 0.5 x 10(9)/l was 12 days and to recover a platelet count > 20 x 10(9)/l, 13 days. Two patients developed acute GVHD grade I-II and one developed limited chronic GVHD. There were two treatment-related deaths. At a median follow-up of 44 months ( range, 4 - 73), nine patients were alive with sustained and complete engraftment. This is a promising procedure in patients with AA, resulting in a rapid hematopoietic recovery, a low transplant-related mortality, and a low incidence of GVHD.
Databáze: OpenAIRE