Response to donor lymphocyte infusions for chronic myeloid leukemia is dose-dependent: the importance of escalating the cell dose to maximize therapeutic efficacy.
Leukemia
; 21(5): 943-8, 2007 May.
Article
em En
| MEDLINE
| ID: mdl-17361226
ABSTRACT
Donor lymphocyte infusions (DLI) are an effective treatment for patients with chronic myeloid leukemia (CML) in relapse after allografting but the optimal cell dose has yet to be identified. To address this question, we investigated the factors affecting the dose required to achieve remission (effective cell dose, (ECD)) in 81 patients treated with an escalating dose regimen. The overall proportion of patients who achieved a molecular remission was 88%. The cumulative proportion of remitters increased significantly at each dose level. With a CD3(+) cell dose < or =10(7)/kg, 56% of patients in molecular/cytogenetic relapse obtained molecular remission, whereas only 20% of those in hematologic relapse did so. At the same cell dose, 58% of patients who received lymphocytes from volunteer unrelated donors achieved remission, as compared to 29% of those who received DLI from sibling donors. We conclude that the response to DLI is dose-dependent and that the ECD is influenced by the quantity and phase of CML at relapse and degree of donor/recipient histocompatibility.
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Bases de dados:
MEDLINE
Assunto principal:
Leucemia Mielogênica Crônica BCR-ABL Positiva
/
Transfusão de Linfócitos
Tipo de estudo:
Prognostic_studies
Limite:
Humans
Idioma:
En
Revista:
Leukemia
Assunto da revista:
HEMATOLOGIA
/
NEOPLASIAS
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Reino Unido