Prognostic implications of additional chromosome abnormalities among patients with de novo acute promyelocytic leukemia with t(15;17)

Riferimento: 
Med Oncol. 2012 Sep;29(3):2095-101.
Autori: 
Wiernik PH, Sun Z, Gundacker H, Dewald G, Slovak ML, Paietta E, Kim HT, Appelbaum FR, Cassileth PA, Tallman MS. pwiernik@chpnet.org
Fonte: 
Med Oncol. 2012 Sep;29(3):2095-101.
Anno: 
2012
Azione: 
Pazienti con leucemia promielocitica acuta (APL) associata alla traslocazione t (15; 17) sono molto più sensibili al trattamento con acido all-trans retinoico (ATRA) che pazienti con t (15; 17) e anomalie citogenetiche aggiuntive.
Target: 
ATRA-traslocazione t (15; 17)/leucemia promielocitica acuta.

ABSTRACT
This retrospective study performed by the Eastern Cooperative Oncology Group and the Southwest Oncology Group enrolled 140 acute promyelocytic leukemia (APL) patients with t(15;17) to determine the influence of additional karyotypic abnormalities on treatment outcome. Karyotypes were centrally reviewed by both study groups. The complete response rate after induction for patients with t(15;17) treated with chemotherapy, or all-trans retinoic acid (ATRA) as induction therapy was not affected by additional cytogenetic aberrations. Disease-free (DFS) and overall survival (OS) were unaffected by additional cytogenetic abnormalities if treatment was chemotherapy without ATRA. Patients with t(15;17) only, treated with ATRA with or without chemotherapy, had an improved DFS (P = 0.06) and a better OS (P = 0.01) compared with ATRA-treated patients with additional cytogenetic abnormalities. Patients with APL and t(15;17) alone are significantly more sensitive to treatment with ATRA than are patients with t(15;17) and additional cytogenetic abnormalities.
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