Title: Risk-adapted treatment of acute promyelocytic leukemia based on all-trans retinoic acid and anthracycline with addition of cytarabine in consolidation therapy for high-risk patients: further improvements in treatment outcome
Authors: Sanz, Miguel A ×
Montesinos, Pau
Rayón, Chelo
Holowiecka, Alexandra
de la Serna, Javier
Milone, Gustavo
de Lisa, Elena
Brunet, Salut
Rubio, Vicente
Ribera, José M
Rivas, Concha
Krsnik, Isabel
Bergua, Juan
González, José
Díaz-Mediavilla, Joaquín
Rojas, Rafael
Manso, Félix
Ossenkoppele, Gert
González, José D
Lowenberg, Bob
Maertens, Johan #
Issue Date: Jun-2010
Publisher: W.B. Saunders
Series Title: Blood vol:115 issue:25 pages:5137-5146
Abstract: A risk-adapted strategy based on all-trans retinoic acid (ATRA) and anthracycline monochemotherapy (PETHEMA LPA99 trial) has demonstrated a high antileukemic efficacy in acute promyelocytic leukemia. We designed a new trial (LPA2005) with the objective of achieving stepwise improvements in outcome. Between July 2005 and April 2009, low- and intermediate-risk patients (leukocytes < 10 x 10(9)/L) received a reduced dose of mitoxantrone for the second consolidation course, whereas high- risk patients younger than 60 years of age received cytarabine combined with ATRA and idarubicin in the first and third consolidation courses. Of 372 patients attaining complete remission after ATRA plus idarubicin (92.5%), 368 proceeded to consolidation therapy. For low- and intermediate-risk patients, duration of neutropenia and thrombocytopenia and hospital stay were significantly reduced without sacrificing antileukemic efficacy, compared with the previous LPA99 trial. For high-risk patients, the 3-year relapse rate was significantly lower in the LPA2005 trial (11%) than in the LPA99 (26%; P = .03). Overall disease-free survival was also better in the LPA2005 trial (P = .04). In conclusion, the lower dose of mitoxantrone resulted in a significant reduction of toxicity and hospital stay while maintaining the antileukemic activity, and the combination of ATRA, idarubicin, and cytarabine for high-risk acute promyelocytic leukemia significantly reduced the relapse rate in this setting. Registered at as NCT00408278.
ISSN: 0006-4971
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Hematology Section (-)
× corresponding author
# (joint) last author

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