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Blood, 15 October 2004, Vol. 104, No. 8, pp. 2467-2474.
Prepublished online as a Blood First Edition Paper on May 13, 2004; DOI 10.1182/blood-2003-10-3561.
Previous Article | Next Article 
Submitted October 20, 2003
Accepted March 31, 2004
Randomized comparison of double induction and timed-sequential induction to a "3+7" induction in adults with acute myeloid leukemia (AML). Long-term analysis of the Acute Leukemia French Association (ALFA) 9000 study
Sylvie Castaigne*, Sylvie Chevret, Eric Archimbaud, Pierre Fenaux, Dominique Bordessoule, Herve Tilly, Thierry De Revel, Marc Simon, Brigitte Dupriez, Michel Renoux, Maud Janvier, Jean-Michel Miclea, Xavier Thomas, Christian Bastard, Claude Preudhomme, Francis Bauters, Laurent Degos, and Herve Dombret
Hematology and Oncology, Centre Hospitalier de Versailles, Le Chesnay, France
Biostatistics, Hopital Saint Louis, Paris, France
Hematology, Hopital Edouard Herriot, Lyon, France
Hematology, Centre Universitaire Regional Universitaire, Lille, France
Hematology, Centre Hospitalier Regional Universitaire, Limoges, France
Hematology, Centre Henri Becquerel, Rouen, France
Hematology, Centre Hospitalier Inter Armees, Clamart, France
Hematology, Centre Hospitalier, Lens, France
Hematology, Centre Hospitalier, Valenciennes, France
Hematology, Centre Hospitalier de la Cote Basque, Bayonne, France
Hematology, Centre Rene Huguenin, Saint Cloud, France
Hematology, Hopital Saint Louis, Paris, France
* Corresponding author; email: scastaigne{at}ch-versailles.fr.
Between 1990 and 1996, we conducted a randomized trial in adults with newlydiagnosed AML in order to compare relapse-free interval (RFI) after double induction (arm B), timed-sequential induction (arm C), or control "3+7" induction
(arm A). Patients achieving complete remission (CR) after induction ± salvage received the same consolidation chemotherapy, which included a dosage stratification according to patient's age (less or older than 50 years). This long-term analysis was performed in 592 patients (arm A/B/C, 197/198/197 patients). Overall CR rate was 76% without differences between the three arms, even if a salvage course was less frequently needed in arm B. Treatment-related mortality, either during the induction or the post-remission phase, was not significantly higher in arms B and C than in arm A. Among the 449 CR patients, 250 relapsed (arm A/B/C, 90/87/73 patients) without significant differences in RFI in arms B and C versus arm A (P=.39 and .15, by the Gray test). However, when analyzing the 345 patients aged less than 50 years, RFI was significantly improved in younger patients receiving timed-sequential induction (P=.038 by the Gray test), while not in those receiving double induction. Event-free and overall survival were similar in the three randomization arms.

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