About EuroClonality
EuroClonality is a European scientifically independent foundation aiming to promote continuous innovation and standardization of laboratory diagnostics in hemato-oncology with a special emphasis on clonality testing and supporting quality control and education in laboratory diagnostics. EuroClonality developed and standardized novel multiplex PCR assays for detection of immunoglobulin (IG) and T-cell receptor (TR) gene rearrangements. These assays are now widely used for the diagnosis of lymphoproliferative disorders.
Read more about EuroClonalityAbout the EuroClonality-NGS Working Group
The EuroClonality-NGS Working Group is a working group of EuroClonality that aims to research and set standards in IG/TR NGS methodology and its applications in hemato-oncology, hematology and immunology.
Read more about the EuroClonality-NGS Working GroupDiagnostic innovations by EuroClonality
Since the start of the collaboration in 1996, the EuroClonality Consortium has developed, optimized, standardized and validated various new assays and related tools to improve diagnostic patient care.
Read more about the diagnostic innovations by EuroClonalityEuroClonality EQA Scheme
Together with the Biomedical Quality Assurance Research Unit of the KU Leuven, EuroClonality organizes an annual External Quality Assessment scheme. All laboratories working with the EuroClonality/BIOMED-2 multiplex PCR assays for detection of IG/TR gene rearrangements can join this EQA scheme to evaluate their performance.
Read more about the EuroClonality EQA SchemeEuroClonality Educational Workshops
Each year, the EuroClonality Educational Workshop “Clonality Assessment in Pathology” is organized in Nijmegen, The Netherlands. This workshop addresses questions on pitfalls in technique and interpretation of the results of the EuroClonality/BIOMED-2 multiplex PCR assays.
Read more about the EuroClonality Educational WorkshopsSupport and Protocols
EuroClonality and the EuroClonality-NGS Working Group also offer support to the diagnostic community via the Online Diagnostic Support Service for problematic cases in clonality testing with the EuroClonality/BIOMED-2 assays, a FAQ section on the use of these assays, and by providing protocols of IG/TR NGS methodology.
ESLHO, together with the independent scientific foundations EuroFlow, EuroClonality and EuroMRD, is an official EHA Specialized Working Group (SWG).
EuroClonality Educational Workshop 2025
With great thanks to Radboud UMC, the EuroClonality Educational Workshop 2025, titled “Clonality Assessment in Pathology,” was once again a great success! The workshop took place over three days (March 5-7, 2025). Participants had the opportunity to discuss their own submitted cases. These cases were analyzed from multiple professional perspectives, including morphology, molecular insights, and clinical context. The hands-on approach allowed participants to evaluate pathology using microscopic images and interpret clonality results. A huge thanks to all the participants who travelled to Nijmegen, The Netherlands, to attend the course. Your contributions were invaluable!
EQA 2024 virtual sessions well-attended
Education is the basis for continuous improvement of diagnostic testing. All schemes that we have an annual educational meeting in which the EQA results are presented and discussed. This is clearly valued: from 57 labs that joined the EuroClonality IG/TR Clonality EQA scheme 2024, more than 100 persons joined the virtual sessions that we organized in the past 2 weeks. Hope to see you again during the EQA scheme 2025!
EuroClonality publishes Recommendations for Evaluation of B-Cell Clonality Analysis by Next-Generation Sequencing.
NGS-based clonality analysis is a powerful technique for the assessment of Ig clonality, but it has its specific pitfalls. EuroClonality developed a step-by-step approach to interpretation of NGS-amplicon–based assessment of clonality which will allow a reliable and reproducible interpretation of the results and will help to avoid overinterpretation. This is all published in a paper named: EuroClonality-NGS Recommendations for Evaluation of B-Cell Clonality Analysis by Next-Generation Sequencing: A Structured Approach with the DEPART Algorithm.