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Clinical use of FLC testing in Multiple Myeloma and AL Amyloidosis

This webinar is presented in English.

Publié: 6/15/2023 | Modifié: 8/10/2026

Abstract

Measurement of serum free light chains (FLC) is an important part of the diagnosis of monoclonal gammopathies.

Together with serum protein electrophoresis and immunofixation/immunotyping, FLC measurement is part of international guidelines, notably for the aid of diagnosis and monitoring of patients with multiple myeloma. FLC testing is also used for the aid of diagnosis and monitoring of patients with AL Amyloidosis.

This workshop recorded during the 25th WorldLab / EuromedLab (2023) focuses on the clinical use of Free Light Chains for Multiple Myeloma and AL Amyloidosis.

Pr. Palladini reviews the different international guidelines and recommendations about FLC testing and reminds the cut-off commutability (« 20 » and « 100 » ratios) between Sebia assay and a predicate method, recently published by Willrich M.A.V et al., in 2022.

What will you learn?

  • Understand the role of Free Light Chains (FLC) in plasma cell disorders

    Learn how FLC testing supports the diagnosis and monitoring of multiple myeloma and AL amyloidosis alongside serum protein electrophoresis and immunofixation/immunotyping.

  • Review international guidelines and clinical recommendations

    Explore the current recommendations for FLC measurement and the clinical significance of key kappa/lambda ratio thresholds used in patient management.

  • Interpret FLC results across different assay methods

    Understand the commutability of important clinical cut-offs, including the “20” and “100” ratios, and their application when using Sebia FLC assays and predicate methods.

The free light chain level is a strong predictor of outcome
Pr Giovanni Palladini, PhD - Director of the Amyloidosis Research & Treatment Center at the Foundation “IRCCS Policlinico San Matteo

About Prof. Giovanni PALLADINI, PhD

Dr. Palladini is professor of clinical chemistry at the University of Pavia and the acting director of the Amyloidosis Research and Treatment Center at the Foundation “IRCCS Policlinico San Matteo”, Pavia, Italy

Dr. Palladini contributed to the introduction of novel agents in the treatment of AL amyloidosis. His studies led to the development of several treatment regimens for AL amyloidosis and to the introduction of NT-proBNP as a marker of diagnosis, prognosis and response of cardiac involvement in this disease, and to the establishment and validation of criteria for hematologic and organ response to therapy in AL amyloidosis.

Pr Giovanni Palladini, PhD

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