Articles

Minimal residual disease quantification by PCR in childhood acute lymphoblastic leukaemia

BJH - volume 5, issue 3, september 2014

J. Van Der Straeten MSc, B. De Moerloose MD, PhD, M-F. Dresse MD, PhD, S. Dupont MD, A. Ferster MD, PhD, P. Philippet MD, A. Uyttebroeck MD, PhD, J. van der Werff ten Bosch MD, PhD, C. Demanet MD, PhD, Y Benoit MD, PhD, M. Bakkus PhD

Summary

In Belgium approximately 70 children are diagnosed with acute lymphoblastic leukaemia annually. For these children, the monitoring of minimal residual disease has an important prognostic value. The level of minimal residual disease during the first three months of therapy is used to recognise subgroups that differ substantially in outcome. Two techniques are used for minimal residual disease monitoring: the Genescan method and the allele specific oligonucleotide polymerase chain reaction. The Genescan method is a less sensitive method (10−3) but is fast and less expensive. The allele specific oligonucleotide polymerase chain reaction requires more time and budget but has a sensitivity of 10−4–10−5. Both techniques have proven their value in minimal residual disease monitoring in childhood acute lymphoblastic leukaemia.

(BELG J HEMATOL 2014;5(3):81–8)

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P2.09 Impact of minimal residual disease monitoring on therapy in Belgian childhood acute lymphoblastic leukaemia

BJH - volume 5, issue Abstract Book BHS, january 2014

J. Van Der Straeten MSc, B. De Moerloose MD, PhD, M-F. Dresse MD, PhD, S. Dupont MD, A. Ferster MD, PhD, P. Philippet MD, A. Uyttebroeck MD, PhD, J. Van der Werf ten Bosch , C. Demanet MD, PhD, Y Benoit MD, PhD, M. Bakkus PhD

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P.08 Comparison of Long-Term Outcome between Belgian and Vietnamese Children Treated for Acute Lymphoblastic Leukaemia according to Fralle 2000 protocol

BJH - 2013, issue BHS Abstractbook, january 2013

P. Vu Hoang , J. Ambroise , V.L. Dang Chi , A.F. Dekairelle , S. Dupont MD, N. Huynh , T.B. Nguyen , J.L. Gala , C. Vermylen

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Less veno-occlusive disease after intravenous versus oral busulfan for autologous haematopoietic stem cell transplantation: the Belgian paediatric experience

BJH - volume 3, issue 2, june 2012

S. Huybrechts MD, Y. Beguin MD, PhD, V. Bordon MD, PhD, MF. Dresse , S. Dupont MD, A. Ferster MD, PhD, G. Laureys MD, PhD, I. Meyts , M. Renard , C. Vermylen

Summary

Busulfan is commonly used in preparative conditioning regimens prior to haematopoietic stem cell transplantation in children and young adults for malignant and non-malignant disorders. For many years busulfan was only available in oral form, resulting in large inter- and intra-patients variability in plasma exposure, associated with higher graft failure rate as well as higher toxicity such as veno-occlusive disease. With the development of an intravenous formulation of busulfan, a more accurate control of both the inter- and intra-patient variability has been provided. The goal of this study was to evaluate the use and efficacy of intravenous busulfan in comparison with the oral formulation in children undergoing an autologous transplantation after conditioning with busulfan. Despite the small number of patients, this study confirmed the apparent benefit of intravenous busulfan in children undergoing an autologous HSCT. The use of a five-level dose schedule defined by body weight resulted in an efficient engrafitment with marked reduction in the incidence of veno-occlusive disease compared with oral busulfan. In terms of disease-free outcome, survival and event-free survival, similar results have been obtained in both groups. The choice of this formulation of busulfan should therefore be considered.

(BELG J HEMATOL 2012;3:34–40)

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