Spots Global Cancer Trial Database for Place of the Hevylite Test in the Evaluation of MRD in Myeloma

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Trial Identification

Brief Title: Place of the Hevylite Test in the Evaluation of MRD in Myeloma

Official Title: Place of the Hevylite Test in the Evaluation of MRD in Myeloma

Study ID: NCT03702088

Conditions

Myeloma

Interventions

Study Description

Brief Summary: Study aiming at testing the positive predictive value of the Hevylite blood test in detecting minimal residual disease in myeloma compared to an invasive method requiring bone marrow sample by multi-parametric flow cytometry

Detailed Description: Multiple Myeloma is a pathology for which treatments are constantly progressing. These treatments allow more and more patients to reach deeper and deeper responses. Currently, it is possible to detect very low levels of disease : this is called the evaluation of minimal residual disease. Its prognostic value is strong. Two techniques currently prevail in the evaluation of minimal residual disease: high throughput sequencing (NGS) and multi-parameter flow cytometry. They are included in evaluation criteria defined by the International Myeloma Working Group (IMWG). These techniques have the advantage of being very sensitive, reaching 10-5 (cytometry: 50 events among 5 000 000 cells analysed) to 10-6 (NGS). Nevertheless, they are invasive for the patient (medullary specimen), require technical expertise and are not necessarily available in all hospitals. The development of blood tests would cope with this constraints. The Hevylite® assay is a simple, sensitive, automated and inexpensive immunologic technique that allows the accurate quantification of total IgG, Total IgG, Total IgA, Total IgA L, Total IgM, and Total IgM in the blood. Given its characteristics, the Hevylite assay could play a role in the definition of MRD and allow evaluation of residual disease in myeloma. This study aims to evaluate the positive predictive value of the Hevylite test in the evaluation of residual disease in myeloma in comparison with multiparametric flow cytometry on the bone marrow.