Concurrent search for unrelated cord and volunteer donor in high-risk acute lymphoblastic leukemia

Autor: Giovanna Meloni, Salvatore Perrone, Nicoletta Sacchi, Luca Laurenti, Anna Maria Testi, Veronica Valle, Roberto Ricci, Fiammetta Natalino, Filippo Milano, Barbarella Lucarelli, Giovanni Fernando Torelli, Maria Screnci, Anna Paola Iori, Maria Paola Perrone, William Arcese, Alfonso Piciocchi, Antonella Vitale, Roberto Foa, Walter Barberi
Rok vydání: 2011
Předmět:
Zdroj: Annals of hematology. 91(6)
ISSN: 1432-0584
Popis: To assess the effectiveness of the search for an unrelated donor on the outcome of patients with high-risk acute lymphoblastic leukemia, we analyzed prospectively 136 patients who underwent a search for cord blood (CB) and an unrelated volunteer donor (UD) at the same time. The probability of finding a donor was 58.2%, 70.3%, and 75.7% at 3, 6, and 12 months, respectively. The median time to find a donor was 1.8 months for CB and 3.5 months for UD. Of the 99 patients with a donor, 38.4% failed to undergo the transplant because of a relapse observed at a median of 4 months from the start of the search. In univariate analysis, absence of relapse during the search (p < 0.0001) and transplant (p = 0.004) showed a positive impact on long-term survival. In multivariate analysis, relapse during the search remained the key factor affecting survival (p < 0.0001). Since an extension of the search beyond 3 months enables only a slight increase in the probability of finding a donor compared to the increased risk of relapse, the time of the search should not exceed the 3-month time point. The simultaneous search for CB and UD increases the likelihood of performing a timely transplant.
Databáze: OpenAIRE