PMID- 19901261 OWN - NLM STAT- MEDLINE DCOM- 20100128 LR - 20211203 IS - 1528-0020 (Electronic) IS - 0006-4971 (Linking) VI - 115 IP - 2 DP - 2010 Jan 14 TI - Strikingly different molecular relapse kinetics in NPM1c, PML-RARA, RUNX1-RUNX1T1, and CBFB-MYH11 acute myeloid leukemias. PG - 198-205 LID - 10.1182/blood-2009-04-212530 [doi] AB - Early relapse detection in acute myeloid leukemia is possible using standardized real-time quantitative polymerase chain reaction (RQ-PCR) protocols. However, optimal sampling intervals have not been defined and are likely to vary according to the underlying molecular lesion. In 74 patients experiencing hematologic relapse and harboring aberrations amenable to RQ-PCR (mutated NPM1 [designated NPM1c], PML-RARA, RUNX1-RUNX1T1, and CBFB-MYH11), we observed strikingly different relapse kinetics. The median doubling time of the CBFB-MYH11 leukemic clone was significantly longer (36 days) than that of clones harboring other markers (RUNX1-RUNX1T1, 14 days; PML-RARA, 12 days; and NPM1c, 11 days; P < .001). Furthermore, we used a mathematical model to determine frequency of relapse detection and median time from detection of minimal residual disease to hematologic relapse as a function of sampling interval length. For example, to obtain a relapse detection fraction of 90% and a median time of 60 days, blood sampling every sixth month should be performed for CBFB-MYH11 leukemias. By contrast, in NPM1c(+)/FLT3-ITD(-), NPM1c(+)/FLT3-ITD(+), RUNX1-RUNX1T1, and PML-RARA leukemias, bone marrow sampling is necessary every sixth, fourth, and fourth and second month, respectively. These data carry important implications for the development of optimal RQ-PCR monitoring schedules suitable for evaluation of minimal residual disease-directed therapies in future clinical trials. FAU - Ommen, Hans Beier AU - Ommen HB AD - Laboratory of Immunohematology, Department of Hematology, Aarhus University Hospital, Aarhus, Denmark. FAU - Schnittger, Susanne AU - Schnittger S FAU - Jovanovic, Jelena V AU - Jovanovic JV FAU - Ommen, Ingrid Beier AU - Ommen IB FAU - Hasle, Henrik AU - Hasle H FAU - Ostergaard, Mette AU - Ostergaard M FAU - Grimwade, David AU - Grimwade D FAU - Hokland, Peter AU - Hokland P LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20091109 PL - United States TA - Blood JT - Blood JID - 7603509 RN - 0 (AML1-ETO fusion protein, human) RN - 0 (Biomarkers, Tumor) RN - 0 (CBFB protein, human) RN - 0 (Core Binding Factor Alpha 2 Subunit) RN - 0 (Core Binding Factor beta Subunit) RN - 0 (MYH11 protein, human) RN - 0 (NPM1 protein, human) RN - 0 (Nuclear Proteins) RN - 0 (Oncogene Proteins, Fusion) RN - 0 (RUNX1 Translocation Partner 1 Protein) RN - 0 (promyelocytic leukemia-retinoic acid receptor alpha fusion oncoprotein) RN - 117896-08-9 (Nucleophosmin) RN - EC 3.6.4.1 (Myosin Heavy Chains) SB - IM MH - Biomarkers, Tumor/*biosynthesis/genetics MH - Bone Marrow/metabolism MH - Core Binding Factor Alpha 2 Subunit/*biosynthesis/genetics MH - Core Binding Factor beta Subunit/*biosynthesis/genetics MH - Female MH - *Gene Expression Regulation, Leukemic MH - Humans MH - Kinetics MH - Leukemia, Myeloid, Acute/genetics/*metabolism/therapy MH - Male MH - Monitoring, Physiologic/methods MH - Myosin Heavy Chains/*biosynthesis/genetics MH - Neoplasm, Residual MH - Nuclear Proteins/*biosynthesis/genetics MH - Nucleophosmin MH - Oncogene Proteins, Fusion/*biosynthesis/genetics MH - RUNX1 Translocation Partner 1 Protein MH - Recurrence MH - Retrospective Studies MH - Time Factors EDAT- 2009/11/11 06:00 MHDA- 2010/01/29 06:00 CRDT- 2009/11/11 06:00 PHST- 2009/11/11 06:00 [entrez] PHST- 2009/11/11 06:00 [pubmed] PHST- 2010/01/29 06:00 [medline] AID - S0006-4971(20)49350-4 [pii] AID - 10.1182/blood-2009-04-212530 [doi] PST - ppublish SO - Blood. 2010 Jan 14;115(2):198-205. doi: 10.1182/blood-2009-04-212530. Epub 2009 Nov 9.