Concurrent bi-directional sequencing of hotpost regions in the BTK and PLC-gamma-2 genes. Analysis includes the BTK mutation C481S and surrounding regions corresponding to amino acids C464 to M509 and the following PLC-gamma-2 mutations and surrounding regions: R665W (W646 to S679), S707 (A681 to M743), and L845F (I839 to V860).
This panel detects mutations in BTK and PLC-gamma-2 which are associated with acquired ibrutinib resistance in certain B-cell neoplasms. This panel is appropriate for patients with B-cell neoplasms who have relapsed and/or show acquired (secondary) resistance after an initial response to BTK (Bruton tyrosine kinase) inhibitors.
- Peripheral blood: 5 mL in EDTA tube.
- Bone marrow: 2 mL in EDTA tube.
- FFPE tissue: Paraffin block is preferred. Alternatively, send 1 H&E slide plus 5-10 unstained slides cut at 5 or more microns. Please use positively-charged slides and 10% NBF fixative. Do not use zinc fixatives.
Use cold pack for transport. Make sure cold pack is not in direct contact with specimen.