RT Journal Article T1 Networking for advanced molecular diagnosis in acute myeloid leukemia patients is possible: the PETHEMA NGS-AML project A1 Sargas, Claudia A1 Ayala, Rosa A1 Chillon, Maria Carmen A1 Larrayoz, Maria J. A1 Carrillo-Cruz, Estrella A1 Bilbao, Cristina A1 Yebenes-Ramirez, Manuel A1 Llop, Marta A1 Rapado, Inmaculada A1 Garcia-Sanz, Ramon A1 Vazquez, Iria A1 Soria, Elena A1 Florido-Ortega, Yanira A1 Janusz, Kamila A1 Botella, Carmen A1 Serrano, Josefina A1 Martinez-Cuadron, David A1 Bergua, Juan A1 Amigo, Mari Luz A1 Martinez-Sanchez, Pilar A1 Tormo, Mar A1 Bernal, Teresa A1 Herrera-Puente, Pilar A1 Garcia, Raimundo A1 Algarra, Lorenzo A1 Sayas, Maria J. A1 Costilla-Barriga, Lisette A1 Perez-Santolalla, Esther A1 Marchante, Inmaculada A1 Lavilla-Rubira, Esperanza A1 Noriega, Victor A1 Alonso-Dominguez, Juan M. A1 Sanz, Miguel A. A1 Sanchez-Garcia, Joaquin A1 Gomez-Casares, Maria A1 Perez-Simon, Jose A. A1 Calasanz, Maria J. A1 Gonzalez-Diaz, Marcos A1 Martinez-Lopez, Joaquin A1 Barragan, Eva A1 Montesinos, Pau A1 PETHEMA Grp, K1 Mutations K1 Remission K1 Classification K1 Resistance K1 Karyotype K1 Evolution K1 Disease K1 Npm1 AB Next-generation sequencing (NGS) has recently been introduced to efficiently and simultaneously detect genetic variations in acute myeloid leukemia (AML). However, its implementation in the clinical routine raises new challenges focused on the diversity of assays and variant reporting criteria. In order to overcome this challenge, the PETHEMA group established a nationwide network of reference laboratories aimed to deliver molecular results in the clinics. We report the technical cross-validation results for NGS panel genes during the standardization process and the clinical validation in 823 samples of 751 patients with newly diagnosed or refractory/relapse AML. Two cross-validation rounds were performed in seven nationwide reference laboratories in order to reach a consensus regarding quality metrics criteria and variant reporting. In the pre-standardization cross-validation round, an overall concordance of 60.98% was obtained with a great variability in selected genes and conditions across laboratories. After consensus of relevant genes and optimization of quality parameters the overall concordance rose to 85.57% in the second cross-validation round. We show that a diagnostic network with harmonized NGS analysis and reporting in seven experienced laboratories is feasible in the context of a scientific group. This cooperative nationwide strategy provides advanced molecular diagnostic for AML patients of the PETHEMA group. PB Ferrata storti foundation SN 0390-6078 YR 2021 FD 2021-12-01 LK https://hdl.handle.net/10668/25272 UL https://hdl.handle.net/10668/25272 LA en DS RISalud RD Apr 18, 2025