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Molecular Measurabl...
Molecular Measurable Residual Disease Assessment before Hematopoietic Stem Cell Transplantation in Pediatric Acute Myeloid Leukemia Patients: A Retrospective Study by the I-BFM Study Group
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Benetton, M. (author)
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Merli, P. (author)
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Walter, C. (author)
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Hansen, M. (author)
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Da Ros, A. (author)
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Polato, K. (author)
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Tregnago, C. (author)
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- Abrahamsson, Jonas, 1954 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för pediatrik,Institute of Clinical Sciences, Department of Pediatrics
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Strocchio, L. (author)
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Sonneveld, E. (author)
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- Fogelstrand, Linda, 1974 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för laboratoriemedicin,Department of Laboratory Medicine
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Von Neuhoff, N. (author)
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Reinhardt, D. (author)
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Hasle, H. (author)
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Pigazzi, M. (author)
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Locatelli, F. (author)
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(creator_code:org_t)
- 2022-06-28
- 2022
- English.
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In: Biomedicines. - : MDPI AG. - 2227-9059. ; 10:7
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https://doi.org/10.3...
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Abstract
Subject headings
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- Hematopoietic stem cell transplantation (HSCT) is a curative post-remission treatment in patients with acute myeloid leukemia (AML), but relapse after transplant is still a challenging event. In recent year, several studies have investigated the molecular minimal residual disease (qPCR-MRD) as a predictor of relapse, but the lack of standardized protocols, cut-offs, and timepoints, especially in the pediatric setting, has prevented its use in several settings, including before HSCT. Here, we propose the first collaborative retrospective I-BFM-AML study assessing qPCR-MRD values in pretransplant bone marrow samples of 112 patients with a diagnosis of AML harboring t(8;21)(q22; q22)RUNX1::RUNX1T1, or inv(16)(p13q22)CBFB::MYH11, or t(9;11)(p21;q23)KMT2A::MLLT3, or FLT3-ITD genetic markers. We calculated an ROC cut-off of 2.1 x 10(-4) that revealed significantly increased OS (83.7% versus 57.1%) and EFS (80.2% versus 52.9%) for those patients with lower qPCR-MRD values. Then, we partitioned patients into three qPCR-MRD groups by combining two different thresholds, 2.1 x 10(-4) and one lower cut-off of 1 x 10(-2), and stratified patients into low-, intermediate-, and high-risk groups. We found that the 5-year OS (83.7%, 68.6%, and 39.2%, respectively) and relapse-free survival (89.2%, 73.9%, and 67.9%, respectively) were significantly different independent of the genetic lesion, conditioning regimen, donor, and stem cell source. These data support the PCR-based approach playing a clinical relevance in AML transplant management.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Pediatrik (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Pediatrics (hsv//eng)
Keyword
- AML
- HSCT
- q-PCR
- MRD
- molecular genetics
- fusion gene transcripts
- aieop-aml 2002/01
- randomized-trial
- rt-pcr
- children
- therapy
- mrd
- standardization
- recommendations
- aberrations
- Biochemistry & Molecular Biology
- Research & Experimental Medicine
- Pharmacology & Pharmacy
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
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Benetton, M.
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Merli, P.
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Walter, C.
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Hansen, M.
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Da Ros, A.
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Polato, K.
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show more...
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Tregnago, C.
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Abrahamsson, Jon ...
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Strocchio, L.
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Sonneveld, E.
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Fogelstrand, Lin ...
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Von Neuhoff, N.
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Reinhardt, D.
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Hasle, H.
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Pigazzi, M.
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Locatelli, F.
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show less...
- About the subject
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Clinical Medicin ...
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and Pediatrics
- Articles in the publication
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Biomedicines
- By the university
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University of Gothenburg