Article ID Journal Published Year Pages File Type
2138105 Leukemia Research 2009 5 Pages PDF
Abstract
10-20% of APL patients relapse and the challenge remains to early identify these patients to improve survival rate. We report PML-RARα transcript detection by RQ-PCR in 260 consecutive APL patients (n = 970 samples). 223 patients with samples of sufficient RNA quality to demonstrate they reached molecular remission were monitored for MRD. During follow-up, 38 of these patients were tested positive for PML-RARα mRNA. 13 out of the 38 patients (34%) effectively developed hematological relapse. In the first positive sample, specific PML-RARα NCN thresholds over which, or under which, patients could effectively be predicted to relapse or not, were identified and subsequently validated in a second cohort.
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