RESUMO
The faster hematopoietic recovery after autologous peripheral blood SCT (APBSCT) in patients with AML may be offset by an increased relapse risk as compared with autologous BMT (ABMT). The EORTC and GIMEMA Leukemia Groups conducted a trial (AML-10) in which they compared, as second randomization, APBSCT and ABMT in first CR patients without an HLA compatible donor. A total of 292 patients were randomized. The 5-year DFS rate was 41% in the APBSCT arm and 46% in the ABMT arm with a hazard ratio (HR) of 1.17; 95% confidence interval=0.85-1.59; P=0.34. The 5-year cumulative relapse incidence was 56% vs 49% (P=0.26), and the 5-year OS 50% and 55% (P=0.6) in the APBSCT and ABMT groups, respectively. APBSCT was associated with significantly faster recovery of neutrophils and platelets, shorter duration of hospitalization, reduced need of transfusion packed RBC and less days of intravenous antibiotics. In both treatment groups, higher numbers of mobilized CD34+ cells were associated with a significantly higher relapse risk irrespective of the treatment given after the mobilization. Randomization between APBSCT and ABMT did not result in significantly different outcomes in terms of DFS, OS and relapse incidence.
Assuntos
Antígenos CD34/metabolismo , Transplante de Medula Óssea/métodos , Mobilização de Células-Tronco Hematopoéticas/métodos , Transplante de Células-Tronco Hematopoéticas/métodos , Leucemia Mieloide Aguda/terapia , Condicionamento Pré-Transplante/métodos , Adolescente , Adulto , Intervalo Livre de Doença , Feminino , Humanos , Leucemia Mieloide Aguda/sangue , Masculino , Pessoa de Meia-Idade , Recidiva , Indução de Remissão , Fatores de Risco , Transplante Autólogo , Adulto JovemRESUMO
We studied a retrospective cohort of 282 higher-risk MDS treated with azacitidine, including 32 patients who concomitantly received an ESA for a median of 5.8 months after azacitidine onset. Forty-four percent of ESA and 29% of no-ESA patients reached HI-E (p=0.07); 48% and 20% achieved transfusion independence (p=0.01). Median OS was 19.6 months in the ESA and 11.9 months in the no-ESA groups (p=0.04). Addition of an ESA significantly improved OS (p=0.03) independently of azacitidine schedule and duration, and of our proposed azacitidine risk score (Blood 2011;117:403-11). Adding an ESA to azacitidine in higher-risk MDS should be studied prospectively.