Uncommon Mutation in CLL Associated With More Favorable Prognostic Factors
This article was originally published by Cancer Therapy Advisor
Patients with chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) who had an MYD88 L265P mutation were uncommon and had distinct features, reported a cohort study in Blood Cancer Journal.
Study researchers identified 56 (3.1%) patients with CLL/SLL who had MYD88 mutations among 1779 who underwent mutational analysis. The study also included 100 patients who did not have MYD88 mutations to serve as a control group.
Among patients with MYD88 mutations, 38 (68%) had the L265P mutation and 18 (32%) had non-L265P mutations, which included 10 with V217F and 4 with M232T. Among the remaining patients with non-L265P mutations, 2 had a single-nucleotide mutation, 1 with S219C and the other with A6fs, and 2 had concurrent mutations, 1 with N291S/T294P and the other with F252I/M232T.
No morphological differences were seen, as all patients had a typical CLL morphology. In general, patients with non-L265P mutations had similar features to patients with wild-type MYD88.