RT journal article T1 The relapsed acute lymphoblastic leukemia network (ReALLNet): a multidisciplinary project from the spanish society of pediatric hematology and oncology (SEHOP) A1 Velasco, Pablo A1 Bautista, Francisco A1 Rubio, Alba A1 Aguilar, Yurena A1 Rives, Susana A1 Dapena, Jose L. A1 Pérez, Antonio A1 Ramirez, Manuel A1 Saiz-Ladera, Cristina A1 Izquierdo, Elisa A1 Escudero, Adela A1 Camós, Mireia A1 Vega-García, Nerea A1 Ortega, Margarita A1 Hidalgo-Gómez, Gloria A1 Palacio, Carlos A1 Menéndez, Pablo A1 Bueno, Clara A1 Montero, Joan A1 Romecín, Paola A. A1 Zazo, Santiago A1 Alvarez, Federico A1 Parras, Juan A1 Ortega-Sabater, Carmen A1 Chulian García, Salvador A1 Rosa Durán, María A1 Cirillo, Davide A1 García, Elena A1 García, Jorge A1 Manzano Muñoz, Albert A1 Minguela, Alfredo A1 Fuster, Jose L. A2 Matemáticas K1 artificial intelligence K1 cancer registry K1 functional assay K1 precision medicine K1 relapsed acute lymphoblastic leukemia AB Acute lymphoblastic leukemia (ALL) is the most common pediatric cancer, with survival rates exceeding 85%. However, 15% of patients will relapse; consequently, their survival rates decrease to below 50%. Therefore, several research and innovation studies are focusing on pediatric relapsed or refractory ALL (R/R ALL). Driven by this context and following the European strategic plan to implement precision medicine equitably, the Relapsed ALL Network (ReALLNet) was launched under the umbrella of SEHOP in 2021, aiming to connect bedside patient care with expert groups in R/R ALL in an interdisciplinary and multicentric network. To achieve this objective, a board consisting of experts in diagnosis, management, preclinical research, and clinical trials has been established. The requirements of treatment centers have been evaluated, and the available oncogenomic and functional study resources have been assessed and organized. A shipping platform has been developed to process samples requiring study derivation, and an integrated diagnostic committee has been established to report results. These biological data, as well as patient outcomes, are collected in a national registry. Additionally, samples from all patients are stored in a biobank. This comprehensive repository of data and samples is expected to foster an environment where preclinical researchers and data scientists can seek to meet the complex needs of this challenging population. This proof of concept aims to demonstrate that a network-based organization, such as that embodied by ReALLNet, provides the ideal niche for the equitable and efficient implementation of “what's next” in the management of children with R/R ALL. 2023 Velasco, Bautista, Rubio, Aguilar, Rives, Dapena, Pérez, Ramirez, Saiz-Ladera, Izquierdo, Escudero, Camós, Vega-Garcia, Ortega, Hidalgo-Gómez, Palacio, Menéndez, Bueno, Montero, Romecín, Zazo, Alvarez, Parras, Ortega-Sabater, Chulián, Rosa, Cirillo, García, García, Manzano-Muñoz, Minguela and Fuster. PB Frontiers Media SA SN 2296-2360 YR 2023 FD 2023 LK http://hdl.handle.net/10498/32280 UL http://hdl.handle.net/10498/32280 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 10-may-2026