Available as global test only. Markers are CD3, CD5, CD19, CD20, CD22, CD43, CD79b, CD81 (8 markers).
Monitoring of minimal residual disease (MRD) in chronic lymphocytic leukemia (CLL) has become increasingly important as treatments improve. This flow cytometry panel follows the strategy developed by the European Research Initiative in CLL (ERIC) and can detect MRD at the 0.01% level. Detection of MRD above 0.01% is reported to be an independent predictor of progression-free survival and overall survival in CLL patients treated with chemoimmunotherapy. The prognostic value of achieving MRD-negative status with other CLL therapies is under investigation in clinical trials.
- Bone marrow aspirate: 2-3 mL EDTA preferred. Sodium heparin is acceptable.
- Peripheral blood: 5-6 mL EDTA preferred. Sodium heparin is acceptable.
- NY Clients: Please provide Date and Time of Collection.
- Note: Lithium heparin or ACD (pale yellow/no gel separator) is not acceptable. Please provide recent CBC report.
Specimens should be received at NeoGenomics within 72 hours from collection to assure sample integrity and acceptable cell viability. Note: New York State samples must be received within 48 hours from collection per NYS requirements. Ship same day as drawn whenever possible. Refrigerate specimen. Do not freeze. Use cold pack for transport, making sure cold pack is not in direct contact with specimen.
- Rawstron AC, Fazi A, Agathangelidis A, et al. A complementary role of multiparameter flow cytometry and high-throughput sequencing for MRD detection in CLL: an European Research Initiative on CLL study. Leukemia. 2016;30:929-936.
- Rawstron AC, Bottcher S, Letestu R, et al. Improving efficiency and sensitivity: European Research Initiative in CLL (ERIC) update on the international harmonised approach for flow residual disease monitoring in CLL. Leukemia. 2013;27:142-149.