Evidence map›Paper›PMID 34657224›Full record

ArticleJournal of neuro-oncology2021

Systemic chemotherapy of pediatric recurrent ependymomas: results from the German HIT-REZ studies.

Jonas E Adolph, Gudrun Fleischhack, Christine Gaab, Ruth Mikasch, Martin Mynarek, Stefan Rutkowski, Ulrich Schüller, Stefan M Pfister, Kristian W Pajtler, Till Milde and 9 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of neuro-oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.3field-weighted citation impact, top 19% 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

10 citing papers in PubMed, 14 citations in OpenAlex.

  1. A brief history of ependymoma.Neuro-oncology · 2026
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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

19 authors at 7 institutions in 1 country.

Jonas E AdolphDepartment of Pediatrics III, Center for Translational Neuro- and Behavioral Sciences (CTNBS), University Hospital of Essen, Hufelandstraße 55, 45147, Essen, Germany.ORCID http://orcid.org/0000-0003-4446-8257
Gudrun FleischhackDepartment of Pediatrics III, Center for Translational Neuro- and Behavioral Sciences (CTNBS), University Hospital of Essen, Hufelandstraße 55, 45147, Essen, Germany.ORCID http://orcid.org/0000-0001-5714-007X
Christine GaabDepartment of Pediatrics III, Center for Translational Neuro- and Behavioral Sciences (CTNBS), University Hospital of Essen, Hufelandstraße 55, 45147, Essen, Germany.
Ruth MikaschDepartment of Pediatrics III, Center for Translational Neuro- and Behavioral Sciences (CTNBS), University Hospital of Essen, Hufelandstraße 55, 45147, Essen, Germany.
Martin MynarekDepartment of Pediatric Hematology and Oncology, Center for Obstetrics and Pediatrics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Stefan RutkowskiDepartment of Pediatric Hematology and Oncology, Center for Obstetrics and Pediatrics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Ulrich SchüllerDepartment of Pediatric Hematology and Oncology, Center for Obstetrics and Pediatrics, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.ORCID http://orcid.org/0000-0002-8731-1121
Stefan M PfisterHopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany.
Kristian W PajtlerHopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany.ORCID http://orcid.org/0000-0002-3562-6121
Till MildeHopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany.
Olaf WittHopp Children's Cancer Center Heidelberg (KiTZ), Heidelberg, Germany.
Brigitte BisonDiagnostic and Interventional Neuroradiology, University Hospital Augsburg, Augsburg, Germany.
Monika Warmuth-MetzInstitute of Diagnostic and Interventional Neuroradiology, University of Würzburg, Würzburg, Germany.
Rolf-Dieter KortmannDepartment of Radio-Oncology, University of Leipzig, Leipzig, Germany.
Stefan DietzschDepartment of Radio-Oncology, University of Leipzig, Leipzig, Germany.
Torsten PietschInstitute of Neuropathology, DGNN Brain Tumor Reference Center, University of Bonn, Bonn, Germany.
Beate TimmermannClinic for Particle Therapy, West German Proton Therapy Center, University of Essen, Essen, Germany.
Stephan TippeltDepartment of Pediatrics III, Center for Translational Neuro- and Behavioral Sciences (CTNBS), University Hospital of Essen, Hufelandstraße 55, 45147, Essen, Germany. stephan.tippelt@uk-essen.de.ORCID http://orcid.org/0000-0001-8791-9914
German GPOH HIT-Network
German Cancer Research Center · DEUniversität Hamburg · DEWest German Heart and Vascular Center Essen · DEEssen University Hospital · DEUniversity Hospital Augsburg · DEUniversity of Bonn · DEUniversity of Würzburg · DE

Funding

Deutsche Kinderkrebsstiftung DKS 2006.01Deutsche Kinderkrebsstiftung DKS 2008.07Deutsche Kinderkrebsstiftung DKS 2012.03Deutsche Kinderkrebsstiftung DKS 2015.02Deutsche Kinderkrebsstiftung DKS 2017.12Deutsche Kinderkrebsstiftung DKS 2020.02
6 · The paper itself

Abstract

purposeSurvival in recurrent ependymoma (EPN) depends mainly on the extent of resection achieved. When complete resection is not feasible, chemotherapy is often used to extend progression-free and overall survival. However, no consistent effect of chemotherapy on survival has been found in patients with recurrent EPN.

methodsSystemic chemotherapeutic treatment of 138 patients enrolled in the German HIT-REZ-studies was analyzed. Survival depending on the use of chemotherapy, disease-stabilization rates (RR), duration of response (DOR) and time to progression (TTP) were estimated.

resultsMedian age at first recurrence was 7.6 years (IQR: 4.0-13.6). At first recurrence, median PFS and OS were 15.3 (CI 13.3-20.0) and 36.9 months (CI 29.7-53.4), respectively. The Hazard Ratio for the use of chemotherapy in local recurrences in a time-dependent Cox-regression analysis was 0.99 (CI 0.74-1.33). Evaluable responses for 140 applied chemotherapies were analyzed, of which sirolimus showed the best RR (50%) and longest median TTP [11.51 (CI 3.98; 14.0) months] in nine patients, with the strongest impact found when sirolimus was used as a monotherapy. Seven patients with progression-free survival > 12 months after subtotal/no-resection facilitated by chemotherapy were found. No definitive survival advantage for any drug in a specific molecularly defined EPN type was found.

conclusionNo survival advantage for the general use of chemotherapy in recurrent EPN was found. In cases with incomplete resection, chemotherapy was able to extend survival in individual cases. Sirolimus showed the best RR, DOR and TTP out of all drugs analyzed and may warrant further investigation.

Indexed as

Brain NeoplasmsEpendymomaNeoplasm Recurrence, LocalAdolescentChildChild, PreschoolGermanyHumansSirolimusTreatment OutcomeSirolimusChemotherapyChildrenEpendymomaRecurrenceSirolimus

Identifiers

PMID34657224
PMCPMC8585796
OpenAlexW3207647164

What OpenQuestion holds

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Registered trials

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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.