Evidence map›Paper›PMID 35045869›Full record

Trial reportTrials2022

Phase I/II trial of meclofenamate in progressive MGMT-methylated glioblastoma under temozolomide second-line therapy-the MecMeth/NOA-24 trial.

Thomas Zeyen, Anna-Laura Potthoff, Robert Nemeth, Dieter H Heiland, Michael C Burger, Joachim P Steinbach, Peter Hau, Ghazaleh Tabatabai, Martin Glas, Uwe Schlegel and 22 more

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

Trial report in Trials, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
4.0field-weighted citation impact, top 5% 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

25 citing papers in PubMed, 30 citations in OpenAlex.

  1. Trial
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  8. Neuro-Cancer Interactions Shape Glioma Intratumoral Heterogeneity.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  9. Review
  10. Innovative Therapeutic Strategies Targeting the Network Architecture of Glioblastoma.Clinical cancer research : an official journal of the American Association for Cancer Research · 2025
    Review
  11. Article
  12. Article
  13. Review
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  19. Intrinsic and Microenvironmental Drivers of Glioblastoma Invasion.International journal of molecular sciences · 2024
    Review
  20. Article
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

32 authors at 14 institutions in 1 country.

Thomas Zeyen *Division of Clinical Neurooncology, Department of Neurology and Center of Integrated Oncology, University Hospital Bonn, Bonn, Germany.
Anna-Laura Potthoff *Department of Neurosurgery and Center of Integrated Oncology, University Hospital Bonn, Bonn, Germany.
Robert NemethInstitute of Medical Biometry, Informatics and Epidemiology, University Hospital Bonn, Bonn, Germany.
Dieter H HeilandDepartment of Neurosurgery, University of Freiburg, Freiburg, Germany.
Michael C BurgerDr. Senckenberg Institute of Neurooncology, Goethe-University Hospital, Frankfurt am Main, Germany.
Joachim P SteinbachDr. Senckenberg Institute of Neurooncology, Goethe-University Hospital, Frankfurt am Main, Germany.
Peter HauDepartment of Neurology and Wilhelm Sander-NeuroOncology Unit, University Hospital Regensburg, Regensburg, Germany.
Ghazaleh TabatabaiInterdisciplinary Division of Neurooncology, University of Tübingen, Tübingen, Germany.
Martin GlasDivision of Clinical Neurooncology, Department of Neurology, University Hospital Essen, Essen, Germany.
Uwe SchlegelDepartment of Neurology, University Hospital Knappschaftskrankenhaus, Ruhr-Universität Bochum, Bochum, Germany.
Oliver GrauerDepartment of Neurology, University of Münster, Münster, Germany.
Dietmar KrexDepartment of Neurosurgery, University of Dresden, Dresden, Germany.
Oliver SchnellDepartment of Neurosurgery, University of Freiburg, Freiburg, Germany.
Roland GoldbrunnerDepartment of Neurosurgery, University of Cologne, Cologne, Germany.
Michael SabelDepartment of Neurosurgery, University of Düsseldorf, Düsseldorf, Germany.
Niklas ThonDepartment of Neurosurgery, Ludwig Maximillian University of Munich and German Cancer Consortium, Partner Site Munich, Munich, Germany.
Daniel DelevDepartment of Neurosurgery, University Hospital RWTH Aachen, Aachen, Germany.
Hans ClusmannDepartment of Neurosurgery, University Hospital RWTH Aachen, Aachen, Germany.
Clemens SeidelDepartment of Radiotherapy and Radiation Oncology, University of Leipzig, Leipzig, Germany.
Erdem GüresirDepartment of Neurosurgery and Center of Integrated Oncology, University Hospital Bonn, Bonn, Germany.
Matthias SchmidInstitute of Medical Biometry, Informatics and Epidemiology, University Hospital Bonn, Bonn, Germany.
Patrick SchussDepartment of Neurosurgery and Center of Integrated Oncology, University Hospital Bonn, Bonn, Germany.
Frank A GiordanoDepartment of Radiation Oncology, University Hospital Bonn, Bonn, Germany.
Alexander RadbruchDepartment of Neuroradiology, University Hospital Bonn, Bonn, Germany.
Albert BeckerDepartment of Neuropathology, University Hospital Bonn, Bonn, Germany.
Johannes WellerDivision of Clinical Neurooncology, Department of Neurology and Center of Integrated Oncology, University Hospital Bonn, Bonn, Germany.
Christina SchaubDivision of Clinical Neurooncology, Department of Neurology and Center of Integrated Oncology, University Hospital Bonn, Bonn, Germany.
Hartmut VatterDepartment of Neurosurgery and Center of Integrated Oncology, University Hospital Bonn, Bonn, Germany.
Judith SchillingClinical Study Core Unit Bonn, Institute of Clinical Chemistry and Clinical Pharmacology, University Bonn, Bonn, Germany.
Frank WinklerDepartment of Neurology, University Hospital Heidelberg, Neurooncology Program at the National Center for Tumor Disease, German Cancer Consortium (DKTK), Clinical Cooperation Unit Neurooncology, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Ulrich HerrlingerDivision of Clinical Neurooncology, Department of Neurology and Center of Integrated Oncology, University Hospital Bonn, Bonn, Germany.
Matthias SchneiderDepartment of Neurosurgery and Center of Integrated Oncology, University Hospital Bonn, Bonn, Germany. matthias.schneider@ukbonn.de.ORCID http://orcid.org/0000-0002-6025-7479
University Hospital Bonn · DEGoethe University Frankfurt · DERWTH Aachen University · DEUniversity of Freiburg · DEDeutschen Konsortium für Translationale Krebsforschung · DEEssen University Hospital · DEGerman Cancer Research Center · DEHeinrich Heine University Düsseldorf · DETechnische Universität Dresden · DEUniversitätsklinikum Knappschaftskrankenhaus Bochum · DEUniversity Hospital Regensburg · DEUniversity of Cologne · DEUniversity of Münster · DEUniversity of Tübingen · DE

Funding

bundesministerium für bildung und forschung 01EN2008
6 · The paper itself

Abstract

backgroundGlioblastoma is the most frequent and malignant primary brain tumor. Even in the subgroup with O-6-methylguanine-DNA methyltransferase (MGMT) promoter methylation and favorable response to first-line therapy, survival after relapse is short (12 months). Standard therapy for recurrent MGMT-methylated glioblastoma is not standardized and may consist of re-resection, re-irradiation, and chemotherapy with temozolomide (TMZ), lomustine (CCNU), or a combination thereof. Preclinical results show that meclofenamate (MFA), originally developed as a nonsteroidal anti-inflammatory drug (NSAID) and registered in the USA, sensitizes glioblastoma cells to temozolomide-induced toxicity via inhibition of gap junction-mediated intercellular cytosolic traffic and demolishment of tumor microtube (TM)-based network morphology.

methodsIn this study, combined MFA/TMZ therapy will be administered (orally) in patients with first relapse of MGMT-methylated glioblastoma. A phase I component (6-12 patients, 2 dose levels of MFA + standard dose TMZ) evaluates safety and feasibility and determines the dose for the randomized phase II component (2 × 30 patients) with progression-free survival as the primary endpoint. DISCUSSION: This study is set up to assess toxicity and first indications of efficacy of MFA repurposed in the setting of a very difficult-to-treat recurrent tumor. The trial is a logical next step after the identification of the role of resistance-providing TMs in glioblastoma, and results will be crucial for further trials targeting TMs. In case of favorable results, MFA may constitute the first clinically feasible TM-targeted drug and therefore might bridge the idea of a TM-targeted therapeutic approach from basic insights into clinical reality.

trial registrationEudraCT 2021-000708-39 . Registered on 08 February 2021.

Indexed as

GlioblastomaAntineoplastic Agents, AlkylatingDNA Modification MethylasesDNA Repair EnzymesHumansMeclofenamic AcidNeoplasm Recurrence, LocalTemozolomideTumor Suppressor ProteinsAntineoplastic Agents, AlkylatingDNA Modification MethylasesDNA Repair EnzymesMeclofenamic AcidMGMT protein, humanTemozolomideTumor Suppressor ProteinsGlioblastomaMeclofenamateRelapseSecond-line therapyTemozolomide

Identifiers

PMID35045869
PMCPMC8767701
OpenAlexW4205110933

What Socratic 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 Socratic graph.