Letters to the Editor

Use of second-line and beyond maintenance therapies in adult patients with primary immune thrombocytopenia in Europe: a parallel study of six prospective multicenter national registries

Department of internal medicine, referral center for autoimmune cytopenias in adults, and Clinical investigation center 1436, Toulouse University hospital, Toulouse, France; European Research Consortium on Immune thrombocytopenia (ERCI), founding member
ITP Centre and UK Adult ITP registry, Department of Clinical Haematology, Royal London Hospital, Barts Health NHS Trust, London, United Kingdom and Queen Mary University of London, London
Department of Hematology, San Bortolo Hospital, Vicenza
European Research Consortium on Immune thrombocytopenia (ERCI), founding member; Østfold hospital, Norway and Institute of clinical medicine, University of Oslo, Oslo
Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus der Technischen Universität, Dresden
Universitätsklinikum Jena, Jena
Department of Hematology/Oncology, University Children’s Hospital Basel, Basel
ITP Centre and UK Adult ITP registry, Department of Clinical Haematology, Royal London Hospital, Barts Health NHS Trust, London, United Kingdom and Queen Mary University of London, London
Department of internal medicine, referral center for autoimmune cytopenias in adults, and Clinical investigation center 1436, Toulouse University hospital, Toulouse
Hematology Project Foundation, Affiliated to the Department of Hematology, San Bortolo Hospital, Vicenza
Østfold hospital, Norway and Institute of clinical medicine, University of Oslo, Oslo
Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus der Technischen Universität, Dresden
Guy’s Hospital, London
European Research Consortium on Immune thrombocytopenia (ERCI), founding member; DSM, Università degli Studi di Trieste, Trieste
Østfold hospital, Norway and Institute of clinical medicine, University of Oslo, Oslo
European Research Consortium on Immune thrombocytopenia (ERCI), founding member; Department of Hematology/Oncology, University Children’s Hospital Basel, Basel
European Research Consortium on Immune thrombocytopenia (ERCI), founding member; Hospital Universitario Morales Meseguer, Universidad de Murcia, IMIB-Pascual Parrilla, CIBERER, Murcia, Spain
European Research Consortium on Immune thrombocytopenia (ERCI), founding member; Hospital Universitario de Burgos, Burgos, Spain
European Research Consortium on Immune thrombocytopenia (ERCI), founding member; ITP Centre and UK Adult ITP registry, Department of Clinical Haematology, Royal London Hospital, Barts Health NHS Trust, London, United Kingdom and Queen Mary University of London, London
European Research Consortium on Immune thrombocytopenia (ERCI), founding member; Mondor University Hospital, Créteil
European Research Consortium on Immune thrombocytopenia (ERCI), founding member; Imperial College London, London
European Research Consortium on Immune thrombocytopenia (ERCI), founding member; Hematology Project Foundation, Affiliated to the Department of Hematology, San Bortolo Hospital, Vicenza
Haematologica Early view Jun 26, 2025 https://doi.org/10.3324/haematol.2025.287408