Abstract: Given the evolving understanding of genetic risk factors in multiple myeloma (MM), this paper assesses whether next?generation sequencing (NGS) could complement or even replace fluorescence in situ hybridization (FISH) at diagnosis. A structured con sensus process within European Myeloma Network (EMN) clinical and laboratory groups was conducted to establish re commendations on routine clinical deployment of NGS in MM risk assessment. Four key questions were addressed: (1) should NGS be used in addition to, or alternatively to FISH in identifying prognostic genetic markers, (2) which prognostic markers are most relevant for analysis by NGS, (3) which patients should be offered NGS testing, and (4) what is the optimal timing for performing NGS. The panel reviewed current literature, evaluated available NGS technologies, and compared their performance with that of FISH?based methodologies. The paper reviews current standard NGS protocols, quality control measures, and provides practical points for the implementation of an NGS diagnosis in MM. While NGS shows promise in improving risk stratification, challenges such as cost, accessibility, and clinical workflow integration must be addressed. The consensus supports the initial incorporation of NGS as a complementary tool to FISH. Recommendations emphasize that: a broader list of genetic events should be incorporated into such a test than what currently requested by risk scores; the test should be offered at least to the fit patients who could be candidates for modern triplet or quadruplet treatments; the test should be repeated at the time relapse, especially in the future when targeted treatments may mandate the use of predictive markers of response. This consensus provides a foundation for future research and policy development, guiding the adoption of NGS in MM risk assessment.
