Evidence map›Paper›PMID 30129426›Full record

Trial reportActa neuropathologica communications2018

Akt and mTORC1 signaling as predictive biomarkers for the EGFR antibody nimotuzumab in glioblastoma.

Michael W Ronellenfitsch, Pia S Zeiner, Michel Mittelbronn, Hans Urban, Torsten Pietsch, Dirk Reuter, Christian Senft, Joachim P Steinbach, Manfred Westphal, Patrick N Harter

Open access · goldAbstract readClinical Trial, Phase IIIRandomized Controlled Trial
In one paragraph

Trial report in Acta neuropathologica communications, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
1.5field-weighted citation impact, top 18% of its field
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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 27 citations in OpenAlex.

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  9. Signaling pathways in brain tumors and therapeutic interventions.Signal transduction and targeted therapy · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 2 countries.

Michael W RonellenfitschDr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, Schleusenweg 2-16, 60528, Frankfurt am Main, Germany. M.Ronellenfitsch@gmx.net.ORCID 0000-0002-1402-6290
Pia S ZeinerDr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, Schleusenweg 2-16, 60528, Frankfurt am Main, Germany.
Michel MittelbronnInstitute of Neurology (Edinger-Institute), University Hospital Frankfurt, Goethe University, Heinrich-Hoffmann-Str. 7, 60528, Frankfurt am Main, Germany.
Hans UrbanDr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, Schleusenweg 2-16, 60528, Frankfurt am Main, Germany.
Torsten PietschDepartment of Neuropathology, University of Bonn, Bonn, Germany.
Dirk ReuterOncoscience GmbH, Schenefeld, Germany.
Christian SenftDepartment of Neurosurgery, University Hospital Frankfurt, Goethe University, Frankfurt am Main, Germany.
Joachim P SteinbachDr. Senckenberg Institute of Neurooncology, University Hospital Frankfurt, Goethe University, Schleusenweg 2-16, 60528, Frankfurt am Main, Germany.
Manfred WestphalDepartment of Neurosurgery, University Hospital Hamburg Eppendorf, Martinistrasse 52, 20246, Hamburg, Germany.
Patrick N HarterGerman Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, Frankfurt am Main, Germany. patrick.harter@kgu.de.ORCID 0000-0001-5530-6910
Goethe University Frankfurt · DEOncoscience (Germany) · DEUniversität Hamburg · DEUniversity of Bonn · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Glioblastoma (GB) is the most frequent primary brain tumor in adults with a dismal prognosis despite aggressive treatment including surgical resection, radiotherapy and chemotherapy with the alkylating agent temozolomide. Thus far, the successful implementation of the concept of targeted therapy where a drug targets a selective alteration in cancer cells was mainly limited to model diseases with identified genetic drivers. One of the most commonly altered oncogenic drivers of GB and therefore plausible therapeutic target is the epidermal growth factor receptor (EGFR). Trials targeting this signaling cascade, however, have been negative, including the phase III OSAG 101-BSA-05 trial. This highlights the need for further patient selection to identify subgroups of GB with true EGFR-dependency. In this retrospective analysis of treatment-naïve samples of the OSAG 101-BSA-05 trial cohort, we identify the EGFR signaling activity markers phosphorylated PRAS40 and phosphorylated ribosomal protein S6 as predictive markers for treatment efficacy of the EGFR-blocking antibody nimotuzumab in MGMT promoter unmethylated GBs. Considering the total trial population irrespective of MGMT status, a clear trend towards a survival benefit from nimotuzumab was already detectable when tumors had above median levels of phosphorylated ribosomal protein S6. These results could constitute a basis for further investigations of nimotuzumab or other EGFR- and downstream signaling inhibitors in selected patient cohorts using the reported criteria as candidate predictive biomarkers.

Indexed as

Adaptor Proteins, Signal TransducingAntibodies, Monoclonal, HumanizedBasic Helix-Loop-Helix ProteinsBrain NeoplasmsCalcium-Binding ProteinsCohort StudiesDNA-Binding ProteinsDNA Modification MethylasesDNA Repair EnzymesEndothelial PAS Domain-Containing Protein 1ErbB ReceptorsFemaleGlioblastomaHumansMaleMechanistic Target of Rapamycin Complex 14-((3-bromophenyl)amino)-6,7-dimethoxyquinazolineAdaptor Proteins, Signal TransducingAIF1 protein, humanAKT1S1 protein, humanAntibodies, Monoclonal, HumanizedBasic Helix-Loop-Helix ProteinsCalcium-Binding ProteinsDNA-Binding ProteinsDNA Modification MethylasesDNA Repair EnzymesEGFR protein, humanEndothelial PAS Domain-Containing Protein 1ErbB ReceptorsMechanistic Target of Rapamycin Complex 1MGMT protein, humanMicrofilament ProteinsnimotuzumabProto-Oncogene Proteins c-aktQuinazolinesRibosomal Protein S6Tumor Suppressor ProteinsBiomarkerEpidermal growth factor receptorGlioblastomaMammalian target of rapamycinNimotuzumabTargeted therapy

Identifiers

PMID30129426
PMCPMC6102828
OpenAlexW2888513357

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.