1. A phase 3 trial of azacitidine versus a semi-intensive fludarabine and cytarabine schedule in older patients with untreated acute myeloid leukemia
- Author
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Instituto de Salud Carlos III, Celgene, Vives, Susana, Martínez-Cuadrón, David, Bergua, Juan, Algarra, Lorenzo, Tormo, Mar, Martínez-Sánchez, María Pilar, Serrano-López, Josefina, Herrera, Pilar, Ramos, Fernando, Salamero, Olga, Lavilla, Esperanza, López-Lorenzo, José L., Gil, Cristina, Vidriales, Maria Belén, Falantes-González, José Francisco, Serrano, Alfons, Labrador, Jorge, Sayas, María-José, Foncillas, María-Ángeles, Amador Barciela, María L., Olave, María-Teresa, Colorado, Mercedes, Gascón, Adriana, Fernández, María Á., Simiele, Adriana, Pérez-Encinas, Manuel, Rodríguez-Veiga, Rebeca, García, Olga, Martínez-López, Joaquín, Barragán, Eva, Paiva, Bruno, Sanz, Miguel Ángel, Montesinos, Pau, Instituto de Salud Carlos III, Celgene, Vives, Susana, Martínez-Cuadrón, David, Bergua, Juan, Algarra, Lorenzo, Tormo, Mar, Martínez-Sánchez, María Pilar, Serrano-López, Josefina, Herrera, Pilar, Ramos, Fernando, Salamero, Olga, Lavilla, Esperanza, López-Lorenzo, José L., Gil, Cristina, Vidriales, Maria Belén, Falantes-González, José Francisco, Serrano, Alfons, Labrador, Jorge, Sayas, María-José, Foncillas, María-Ángeles, Amador Barciela, María L., Olave, María-Teresa, Colorado, Mercedes, Gascón, Adriana, Fernández, María Á., Simiele, Adriana, Pérez-Encinas, Manuel, Rodríguez-Veiga, Rebeca, García, Olga, Martínez-López, Joaquín, Barragán, Eva, Paiva, Bruno, Sanz, Miguel Ángel, and Montesinos, Pau
- Abstract
[Background] Options to treat elderly patients (≥65 years old) newly diagnosed with acute myeloid leukemia (AML) include intensive and attenuated chemotherapy, hypomethylating agents with or without venetoclax, and supportive care. This multicenter, randomized, open-label, phase 3 trial was designed to assess the efficacy and safety of a fludarabine, cytarabine, and filgrastim (FLUGA) regimen in comparison with azacitidine (AZA)., [Methods] Patients (n = 283) were randomized 1:1 to FLUGA (n = 141) or AZA (n = 142). Response was evaluated after cycles 1, 3, 6, and 9. Measurable residual disease (MRD) was assessed after cycle 9. When MRD was ≥0.01%, patients continued with the treatment until relapse or progressive disease. Patients with MRD < 0.01% suspended treatment to enter the follow-up phase. [Results] The complete remission (CR) rate after 3 cycles was significantly better in the FLUGA arm (18% vs 9%; P = .04), but the CR/CR with incomplete recovery rate at 9 months was similar (33% vs 29%; P = .41). There were no significant differences between arms in early mortality at 30 or 60 days. Hematologic toxicities were more frequent with FLUGA, especially during induction. The 1-year overall survival (OS) rate and the median OS were superior with AZA versus FLUGA: 47% versus 27% and 9.8 months (95% confidence interval [CI], 5.6-14 months) versus 4.1 months (95% CI, 2.7-5.5 months; P = .005), respectively. The median event-free survival was 4.9 months (95% CI, 2.8-7 months) with AZA and 3 months (95% CI, 2.5-3.5 months) with FLUGA (P = .001). [Conclusions] FLUGA achieved more remissions after 3 cycles, but the 1-year OS rate was superior with AZA. However, long-term outcomes were disappointing in both arms (3-year OS rate, 10% vs 5%). This study supports the use of an AZA backbone for future combinations in elderly patients with AML.
- Published
- 2021