Waldenstrom's Disease clinical trials

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

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NCT ID: NCT04893564 Withdrawn - Clinical trials for Waldenstrom Macroglobulinemia

Prognostic Value of Circulating Tumoral DNA After the First 6 Months of Treatment in Patients With Waldenström Macroglobulinemia

SLP-rares

Start date: May 14, 2021
Phase: N/A
Study type: Interventional

Waldenström Macroglobulinemia (WM) is defined by a bone marrow lymphoplasmacytic infiltration and the presence of a monoclonal immunoglobulin M (IgM) in blood. This chronic lymphoproliferative disorder requires treatment only in case of symptoms, according to accurate criteria described during the second Workshop on WM i.e. in case of cytopenia, bulky organomegaly, immunological or physicochemical consequences of the presence of IgM in circulating blood. A MYD88 mutation, typically a MYD88(L265P), is found in 90% of WM patients. Other gene abnormalities have been observed, the most frequent is a mutation in the CXCR4 gene. Overall, gene mutations in WM involve only a limited number of signalling pathways, yielding the activation of NFkB, namely : the TLR and MYD88 pathway (with an activation of NFkB and BTK in case of MYD88(L265P) mutation), the BCR pathway (involving btk and associated with activations of both NFkB, and erk akt pathway) and the CXCR4 pathway (CXCR4 is a receptor of CXCL12, it is also associated with activations of ERK/MAPK and PI3K). Abnormalities of some of genes, such as TP53, of the expression of the protein CXCL13 and genes involved in the interleukin 6 secretion have been associated with some clinical characteristics. The purpose of this project is to define the prognostic role of the detection of circulating tumoral DNA (ctDNA) at the end of treatment for the progression/relapse risk within the first 3 years after the first 6 months of treatment.