Evidence map›Paper›PMID 25253770›Full record

ArticleBlood2014

Ras pathway mutations are prevalent in relapsed childhood acute lymphoblastic leukemia and confer sensitivity to MEK inhibition.

Julie Irving, Elizabeth Matheson, Lynne Minto, Helen Blair, Marian Case, Christina Halsey, Isabella Swidenbank, Frida Ponthan, Renate Kirschner-Schwabe, Stefanie Groeneveld-Krentz and 6 more

Registry-linked trialAbstract read
In one paragraph

Article in Blood, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00114348 (ALL-REZ BFM 2002), which is not on this map. Cited by 151 papers.

0numbers the graph read from it
0cells of the map it votes in
151citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT00114348 phase4completednot on this map

ALL-REZ BFM 2002: Protocol for the Treatment of Children With Relapsed Acute Lymphoblastic Leukemia

TypeinterventionalSponsorCharite University, Berlin, GermanyRan2003 to 2012Enrolled338ConditionsLymphoblastic Leukemia, Acute, Lymphoma, Non-HodgkinArmsR-Blocks, Protocol II-Ida
3 · Its place in the literature

Who cites it

151 citing papers in PubMed.

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  19. Pharmaceutical science advances · 2024
    Article
  20. Article

91 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors.

Julie IrvingNorthern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, United Kingdom;
Elizabeth MathesonNorthern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, United Kingdom;
Lynne MintoNorthern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, United Kingdom;
Helen BlairNorthern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, United Kingdom;
Marian CaseNorthern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, United Kingdom;
Christina HalseyCentre for Immunobiology, Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, United Kingdom;
Isabella SwidenbankInstitute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, United Kingdom; and.
Frida PonthanNorthern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, United Kingdom;
Renate Kirschner-SchwabeCharité - Universitätsmedizin Berlin, Department of Paediatric Oncology/Haematology, Berlin, Germany.
Stefanie Groeneveld-KrentzCharité - Universitätsmedizin Berlin, Department of Paediatric Oncology/Haematology, Berlin, Germany.
Jana HofCharité - Universitätsmedizin Berlin, Department of Paediatric Oncology/Haematology, Berlin, Germany.
James AllanNorthern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, United Kingdom;
Christine HarrisonNorthern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, United Kingdom;
Josef VormoorNorthern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, United Kingdom;
Arend von StackelbergCharité - Universitätsmedizin Berlin, Department of Paediatric Oncology/Haematology, Berlin, Germany.
Cornelia EckertCharité - Universitätsmedizin Berlin, Department of Paediatric Oncology/Haematology, Berlin, Germany.

Funding

Cancer Research UK 12788Cancer Research UK C27943/A12788Chief Scientist Office SCD/08
6 · The paper itself

Abstract

For most children who relapse with acute lymphoblastic leukemia (ALL), the prognosis is poor, and there is a need for novel therapies to improve outcome. We screened samples from children with B-lineage ALL entered into the ALL-REZ BFM 2002 clinical trial (www.clinicaltrials.gov, #NCT00114348) for somatic mutations activating the Ras pathway (KRAS, NRAS, FLT3, and PTPN11) and showed mutation to be highly prevalent (76 from 206). Clinically, they were associated with high-risk features including early relapse, central nervous system (CNS) involvement, and specifically for NRAS/KRAS mutations, chemoresistance. KRAS mutations were associated with a reduced overall survival. Mutation screening of the matched diagnostic samples found many to be wild type (WT); however, by using more sensitive allelic-specific assays, low-level mutated subpopulations were found in many cases, suggesting that they survived up-front therapy and subsequently emerged at relapse. Preclinical evaluation of the mitogen-activated protein kinase kinase 1/2 inhibitor selumetinib (AZD6244, ARRY-142886) showed significant differential sensitivity in Ras pathway-mutated ALL compared with WT cells both in vitro and in an orthotopic xenograft model engrafted with primary ALL; in the latter, reduced RAS-mutated CNS leukemia. Given these data, clinical evaluation of selumetinib may be warranted for Ras pathway-mutated relapsed ALL.

Indexed as

Genes, rasMutationAnimalsBenzimidazolesCell Line, TumorChildClinical Trials as TopicDrug Resistance, NeoplasmGene FrequencyHumansMAP Kinase Kinase KinasesMiceMice, Inbred NODMice, SCIDMice, TransgenicPrecursor Cell Lymphoblastic Leukemia-LymphomaAZD 6244BenzimidazolesMAP Kinase Kinase KinasesProtein Kinase Inhibitors

Identifiers

PMID25253770
PMCPMC4246039

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.