ArticleMedical journal, Armed Forces India
Prevalence, clinical and haematological profile and outcome of BCR-ABL1-like acute lymphoblastic leukaemia in Indian children: A prospective observational study.
Article in Medical journal, Armed Forces India. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed.
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7 authors.
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Abstract
Background: BCR-ABL1-like acute lymphoblastic leukaemia (ALL) represents a perplexing subclass of ALL mainly due to genomic heterogeneity and non-availability of standardized diagnostic tests. The data on prevalence, clinical-haematological profile and outcome are limited, more so from low-middle income countries. Methods: This prospective observational study enrolled children<14 years with B-ALL. Recurrent genetic/chromosomal aberrations were excluded. BCR-ABL1-like aberrations were analysed using Polymerized Chain Reaction (PCR) or Next-Generation Sequencing (NGS). Two groups with/without BCR-ABL1-like ALL (Mut+/Mut-) were compared. Results: Out of 214 eligible children; 75 with "B-other ALL" were analysed for BCR-ABL1-like aberrations. Their prevalence was 34/214 (15.8%) in B-ALL and 34/75 (45.3%) in "B-other" ALL (PCR:33.3% and NGS:53.3%). Majority of the aberrations were JAK2E16 and ILR7e5/ILR7e6 with PCR and RAS pathway and PAX5 fusion with NGS. Baseline demographic, clinical and laboratory parameters including aberrant flowcytometry were comparable in Mut+ and Mut-groups. Children with day-8 absolute blast count (ABC) were higher in Mut+ group. High end-induction minimal residual disease (MRD) was comparable in two groups. Number of NCI-standard risk (SR) at diagnosis with high D-8 ABC or high MRD was higher in Mut+ group. Similar results were found when aberrations were analysed by NGS alone. In all 56 children are alive, 19 had an event (relapse/death). The outcomes were comparable in two groups with median follow-up of 1075 days (IQR: 660-1527); when analysis was based on combined as well as NGS-based methodology alone. Conclusions: We report 15.8% prevalence of BCR-ABL1-like ALL in children by PCR or NGS. High D-8 ABC was associated with BCR-ABL1-like ALL with no impact on outcomes.
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