Trial reportNeuro-oncology2016
Complete resection of contrast-enhancing tumor volume is associated with improved survival in recurrent glioblastoma-results from the DIRECTOR trial.
Open access · bronzeAbstract readMulticenter StudyRandomized Controlled Trial
In one paragraph
Trial report in Neuro-oncology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 134 papers, 12 of them syntheses that pooled it.
0numbers the graph read from it
0cells of the map it votes in
134citing papers in PubMed, 12 pooled it
13.7field-weighted citation impact, top 1% of its field
What it found
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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.
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.
Who cites it
134 citing papers in PubMed, 12 syntheses or guidelines pooled it, 246 citations in OpenAlex.
- Surgical treatment of recurrent glioblastoma: a multicenter perspective from the Italian society of neurosurgery (SINchNeurosurgical review · 2026Pooled it
- Determinants of survival after re-resection for recurrent glioblastoma: a meta-analysis.Acta neurochirurgica · 2026Pooled it
- EANS-EANO guidelines on the extent of resection in gliomas.Neuro-oncology · 2026Guideline
- Metabolic Imaging as Future Technology and Innovation in Brain-Tumour Surgery: A Systematic Review.Current oncology (Toronto, Ont.) · 2025Pooled it
- Current trends in reoperation for recurrent glioblastoma: a meta-analysis (2007-2023).Journal of neuro-oncology · 2025Pooled it
- The impact of intraoperative mapping during re-resection in recurrent gliomas: a systematic review.Journal of neuro-oncology · 2025Pooled it
- Carmustine Wafers Implantation in Patients With Newly Diagnosed High Grade Glioma: Is It Still an Option?Frontiers in neurology · 2022Pooled it
- Assessing the efficacy of repeat resections in recurrent glioblastoma: a systematic review.Neurosurgical review · 2021Pooled it
- Treatment options for progression or recurrence of glioblastoma: a network meta-analysis.The Cochrane database of systematic reviews · 2021Pooled it
- Pooled it
- A Meta-Analysis of Survival Outcomes Following Reoperation in Recurrent Glioblastoma: Time to Consider the Timing of Reoperation.Frontiers in neurology · 2019Pooled it
- Pooled it
- Discrepancies in inter-rater agreement on resectability of recurrent glioblastoma: Complementary post-hoc analysis of the prospective, randomized DIRECTOR trial.Neuro-oncology · 2026Trial
- Repeated blood-brain barrier opening with a nine-emitter implantable ultrasound device in combination with carboplatin in recurrent glioblastoma: a phase I/II clinical trial.Nature communications · 2024Trial
- PerSurge (NOA-30) phase II trial of perampanel treatment around surgery in patients with progressive glioblastoma.BMC cancer · 2024Trial
- First-in-human study of PET and optical dual-modality image-guided surgery in glioblastoma usingTheranostics · 2018Trial
- Oncolytic H-1 Parvovirus Shows Safety and Signs of Immunogenic Activity in a First Phase I/IIa Glioblastoma Trial.Molecular therapy : the journal of the American Society of Gene Therapy · 2017Trial
- Baseline pretreatment contrast enhancing tumor volume including central necrosis is a prognostic factor in recurrent glioblastoma: evidence from single and multicenter trials.Neuro-oncology · 2017Trial
- Post-recurrence management of malignant glial brain tumors: therapeutic strategies, evidence and limitations, palliative care, terminal sedation, and end-of-life considerations.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026Review
- Optimal clinicogenetic criteria for post-operative re-irradiation in recurrent glioblastoma: KROG 21-02.ESMO open · 2026Article
74 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
14 authors at 7 institutions in 1 country.
Bogdana SuchorskaDepartment of Neurosurgery, Ludwig-Maximilians University Munich, Munich, Germany (B.S., J.C.T.); Department of Neurology, University Hospital Zurich, Zurich, Switzerland (M.W., G.T., H.-G.W.); Department of Neurology, University Hospital Tübingen, Tübingen, Germany (G.T.); Department of Neurosurgery, University Hospital Frankfurt, Frankfurt am Main, Germany (C.S.); Department of Neurology, University Hospital Regensburg, Regensburg, Germany (P.H.); Department of Neurosurgery, University Hospital Düsseldorf, Düsseldorf, Germany (M.C.S.); Department of Neurology, University Hospital Bonn, Bonn, Germany (U.H.); Department of Neurosurgery, University Hospital Saarland, Homburg/Saar, Germany (R.K.); Department of Neurology, Knappschaftskrankenhaus Bochum, Bochum, Germany (U.S.); Department of Oncology, Vienna General Hospital, Vienna, Austria (C.M.); Institute of Neuropathology, University Hospital Düsseldorf, Düsseldorf, Germany (G.R.); Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany (W.W.).
Michael WellerDepartment of Neurosurgery, Ludwig-Maximilians University Munich, Munich, Germany (B.S., J.C.T.); Department of Neurology, University Hospital Zurich, Zurich, Switzerland (M.W., G.T., H.-G.W.); Department of Neurology, University Hospital Tübingen, Tübingen, Germany (G.T.); Department of Neurosurgery, University Hospital Frankfurt, Frankfurt am Main, Germany (C.S.); Department of Neurology, University Hospital Regensburg, Regensburg, Germany (P.H.); Department of Neurosurgery, University Hospital Düsseldorf, Düsseldorf, Germany (M.C.S.); Department of Neurology, University Hospital Bonn, Bonn, Germany (U.H.); Department of Neurosurgery, University Hospital Saarland, Homburg/Saar, Germany (R.K.); Department of Neurology, Knappschaftskrankenhaus Bochum, Bochum, Germany (U.S.); Department of Oncology, Vienna General Hospital, Vienna, Austria (C.M.); Institute of Neuropathology, University Hospital Düsseldorf, Düsseldorf, Germany (G.R.); Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany (W.W.).
Ghazaleh TabatabaiDepartment of Neurosurgery, Ludwig-Maximilians University Munich, Munich, Germany (B.S., J.C.T.); Department of Neurology, University Hospital Zurich, Zurich, Switzerland (M.W., G.T., H.-G.W.); Department of Neurology, University Hospital Tübingen, Tübingen, Germany (G.T.); Department of Neurosurgery, University Hospital Frankfurt, Frankfurt am Main, Germany (C.S.); Department of Neurology, University Hospital Regensburg, Regensburg, Germany (P.H.); Department of Neurosurgery, University Hospital Düsseldorf, Düsseldorf, Germany (M.C.S.); Department of Neurology, University Hospital Bonn, Bonn, Germany (U.H.); Department of Neurosurgery, University Hospital Saarland, Homburg/Saar, Germany (R.K.); Department of Neurology, Knappschaftskrankenhaus Bochum, Bochum, Germany (U.S.); Department of Oncology, Vienna General Hospital, Vienna, Austria (C.M.); Institute of Neuropathology, University Hospital Düsseldorf, Düsseldorf, Germany (G.R.); Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany (W.W.).
Christian SenftDepartment of Neurosurgery, Ludwig-Maximilians University Munich, Munich, Germany (B.S., J.C.T.); Department of Neurology, University Hospital Zurich, Zurich, Switzerland (M.W., G.T., H.-G.W.); Department of Neurology, University Hospital Tübingen, Tübingen, Germany (G.T.); Department of Neurosurgery, University Hospital Frankfurt, Frankfurt am Main, Germany (C.S.); Department of Neurology, University Hospital Regensburg, Regensburg, Germany (P.H.); Department of Neurosurgery, University Hospital Düsseldorf, Düsseldorf, Germany (M.C.S.); Department of Neurology, University Hospital Bonn, Bonn, Germany (U.H.); Department of Neurosurgery, University Hospital Saarland, Homburg/Saar, Germany (R.K.); Department of Neurology, Knappschaftskrankenhaus Bochum, Bochum, Germany (U.S.); Department of Oncology, Vienna General Hospital, Vienna, Austria (C.M.); Institute of Neuropathology, University Hospital Düsseldorf, Düsseldorf, Germany (G.R.); Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany (W.W.).
Peter HauDepartment of Neurosurgery, Ludwig-Maximilians University Munich, Munich, Germany (B.S., J.C.T.); Department of Neurology, University Hospital Zurich, Zurich, Switzerland (M.W., G.T., H.-G.W.); Department of Neurology, University Hospital Tübingen, Tübingen, Germany (G.T.); Department of Neurosurgery, University Hospital Frankfurt, Frankfurt am Main, Germany (C.S.); Department of Neurology, University Hospital Regensburg, Regensburg, Germany (P.H.); Department of Neurosurgery, University Hospital Düsseldorf, Düsseldorf, Germany (M.C.S.); Department of Neurology, University Hospital Bonn, Bonn, Germany (U.H.); Department of Neurosurgery, University Hospital Saarland, Homburg/Saar, Germany (R.K.); Department of Neurology, Knappschaftskrankenhaus Bochum, Bochum, Germany (U.S.); Department of Oncology, Vienna General Hospital, Vienna, Austria (C.M.); Institute of Neuropathology, University Hospital Düsseldorf, Düsseldorf, Germany (G.R.); Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany (W.W.).
Michael C SabelDepartment of Neurosurgery, Ludwig-Maximilians University Munich, Munich, Germany (B.S., J.C.T.); Department of Neurology, University Hospital Zurich, Zurich, Switzerland (M.W., G.T., H.-G.W.); Department of Neurology, University Hospital Tübingen, Tübingen, Germany (G.T.); Department of Neurosurgery, University Hospital Frankfurt, Frankfurt am Main, Germany (C.S.); Department of Neurology, University Hospital Regensburg, Regensburg, Germany (P.H.); Department of Neurosurgery, University Hospital Düsseldorf, Düsseldorf, Germany (M.C.S.); Department of Neurology, University Hospital Bonn, Bonn, Germany (U.H.); Department of Neurosurgery, University Hospital Saarland, Homburg/Saar, Germany (R.K.); Department of Neurology, Knappschaftskrankenhaus Bochum, Bochum, Germany (U.S.); Department of Oncology, Vienna General Hospital, Vienna, Austria (C.M.); Institute of Neuropathology, University Hospital Düsseldorf, Düsseldorf, Germany (G.R.); Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany (W.W.).
Ulrich HerrlingerDepartment of Neurosurgery, Ludwig-Maximilians University Munich, Munich, Germany (B.S., J.C.T.); Department of Neurology, University Hospital Zurich, Zurich, Switzerland (M.W., G.T., H.-G.W.); Department of Neurology, University Hospital Tübingen, Tübingen, Germany (G.T.); Department of Neurosurgery, University Hospital Frankfurt, Frankfurt am Main, Germany (C.S.); Department of Neurology, University Hospital Regensburg, Regensburg, Germany (P.H.); Department of Neurosurgery, University Hospital Düsseldorf, Düsseldorf, Germany (M.C.S.); Department of Neurology, University Hospital Bonn, Bonn, Germany (U.H.); Department of Neurosurgery, University Hospital Saarland, Homburg/Saar, Germany (R.K.); Department of Neurology, Knappschaftskrankenhaus Bochum, Bochum, Germany (U.S.); Department of Oncology, Vienna General Hospital, Vienna, Austria (C.M.); Institute of Neuropathology, University Hospital Düsseldorf, Düsseldorf, Germany (G.R.); Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany (W.W.).
Ralf KetterDepartment of Neurosurgery, Ludwig-Maximilians University Munich, Munich, Germany (B.S., J.C.T.); Department of Neurology, University Hospital Zurich, Zurich, Switzerland (M.W., G.T., H.-G.W.); Department of Neurology, University Hospital Tübingen, Tübingen, Germany (G.T.); Department of Neurosurgery, University Hospital Frankfurt, Frankfurt am Main, Germany (C.S.); Department of Neurology, University Hospital Regensburg, Regensburg, Germany (P.H.); Department of Neurosurgery, University Hospital Düsseldorf, Düsseldorf, Germany (M.C.S.); Department of Neurology, University Hospital Bonn, Bonn, Germany (U.H.); Department of Neurosurgery, University Hospital Saarland, Homburg/Saar, Germany (R.K.); Department of Neurology, Knappschaftskrankenhaus Bochum, Bochum, Germany (U.S.); Department of Oncology, Vienna General Hospital, Vienna, Austria (C.M.); Institute of Neuropathology, University Hospital Düsseldorf, Düsseldorf, Germany (G.R.); Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany (W.W.).
Uwe SchlegelDepartment of Neurosurgery, Ludwig-Maximilians University Munich, Munich, Germany (B.S., J.C.T.); Department of Neurology, University Hospital Zurich, Zurich, Switzerland (M.W., G.T., H.-G.W.); Department of Neurology, University Hospital Tübingen, Tübingen, Germany (G.T.); Department of Neurosurgery, University Hospital Frankfurt, Frankfurt am Main, Germany (C.S.); Department of Neurology, University Hospital Regensburg, Regensburg, Germany (P.H.); Department of Neurosurgery, University Hospital Düsseldorf, Düsseldorf, Germany (M.C.S.); Department of Neurology, University Hospital Bonn, Bonn, Germany (U.H.); Department of Neurosurgery, University Hospital Saarland, Homburg/Saar, Germany (R.K.); Department of Neurology, Knappschaftskrankenhaus Bochum, Bochum, Germany (U.S.); Department of Oncology, Vienna General Hospital, Vienna, Austria (C.M.); Institute of Neuropathology, University Hospital Düsseldorf, Düsseldorf, Germany (G.R.); Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany (W.W.).
Christine MarosiDepartment of Neurosurgery, Ludwig-Maximilians University Munich, Munich, Germany (B.S., J.C.T.); Department of Neurology, University Hospital Zurich, Zurich, Switzerland (M.W., G.T., H.-G.W.); Department of Neurology, University Hospital Tübingen, Tübingen, Germany (G.T.); Department of Neurosurgery, University Hospital Frankfurt, Frankfurt am Main, Germany (C.S.); Department of Neurology, University Hospital Regensburg, Regensburg, Germany (P.H.); Department of Neurosurgery, University Hospital Düsseldorf, Düsseldorf, Germany (M.C.S.); Department of Neurology, University Hospital Bonn, Bonn, Germany (U.H.); Department of Neurosurgery, University Hospital Saarland, Homburg/Saar, Germany (R.K.); Department of Neurology, Knappschaftskrankenhaus Bochum, Bochum, Germany (U.S.); Department of Oncology, Vienna General Hospital, Vienna, Austria (C.M.); Institute of Neuropathology, University Hospital Düsseldorf, Düsseldorf, Germany (G.R.); Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany (W.W.).
Guido ReifenbergerDepartment of Neurosurgery, Ludwig-Maximilians University Munich, Munich, Germany (B.S., J.C.T.); Department of Neurology, University Hospital Zurich, Zurich, Switzerland (M.W., G.T., H.-G.W.); Department of Neurology, University Hospital Tübingen, Tübingen, Germany (G.T.); Department of Neurosurgery, University Hospital Frankfurt, Frankfurt am Main, Germany (C.S.); Department of Neurology, University Hospital Regensburg, Regensburg, Germany (P.H.); Department of Neurosurgery, University Hospital Düsseldorf, Düsseldorf, Germany (M.C.S.); Department of Neurology, University Hospital Bonn, Bonn, Germany (U.H.); Department of Neurosurgery, University Hospital Saarland, Homburg/Saar, Germany (R.K.); Department of Neurology, Knappschaftskrankenhaus Bochum, Bochum, Germany (U.S.); Department of Oncology, Vienna General Hospital, Vienna, Austria (C.M.); Institute of Neuropathology, University Hospital Düsseldorf, Düsseldorf, Germany (G.R.); Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany (W.W.).
Wolfgang WickDepartment of Neurosurgery, Ludwig-Maximilians University Munich, Munich, Germany (B.S., J.C.T.); Department of Neurology, University Hospital Zurich, Zurich, Switzerland (M.W., G.T., H.-G.W.); Department of Neurology, University Hospital Tübingen, Tübingen, Germany (G.T.); Department of Neurosurgery, University Hospital Frankfurt, Frankfurt am Main, Germany (C.S.); Department of Neurology, University Hospital Regensburg, Regensburg, Germany (P.H.); Department of Neurosurgery, University Hospital Düsseldorf, Düsseldorf, Germany (M.C.S.); Department of Neurology, University Hospital Bonn, Bonn, Germany (U.H.); Department of Neurosurgery, University Hospital Saarland, Homburg/Saar, Germany (R.K.); Department of Neurology, Knappschaftskrankenhaus Bochum, Bochum, Germany (U.S.); Department of Oncology, Vienna General Hospital, Vienna, Austria (C.M.); Institute of Neuropathology, University Hospital Düsseldorf, Düsseldorf, Germany (G.R.); Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany (W.W.).
Jörg C TonnDepartment of Neurosurgery, Ludwig-Maximilians University Munich, Munich, Germany (B.S., J.C.T.); Department of Neurology, University Hospital Zurich, Zurich, Switzerland (M.W., G.T., H.-G.W.); Department of Neurology, University Hospital Tübingen, Tübingen, Germany (G.T.); Department of Neurosurgery, University Hospital Frankfurt, Frankfurt am Main, Germany (C.S.); Department of Neurology, University Hospital Regensburg, Regensburg, Germany (P.H.); Department of Neurosurgery, University Hospital Düsseldorf, Düsseldorf, Germany (M.C.S.); Department of Neurology, University Hospital Bonn, Bonn, Germany (U.H.); Department of Neurosurgery, University Hospital Saarland, Homburg/Saar, Germany (R.K.); Department of Neurology, Knappschaftskrankenhaus Bochum, Bochum, Germany (U.S.); Department of Oncology, Vienna General Hospital, Vienna, Austria (C.M.); Institute of Neuropathology, University Hospital Düsseldorf, Düsseldorf, Germany (G.R.); Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany (W.W.).
Hans-Georg WirschingDepartment of Neurosurgery, Ludwig-Maximilians University Munich, Munich, Germany (B.S., J.C.T.); Department of Neurology, University Hospital Zurich, Zurich, Switzerland (M.W., G.T., H.-G.W.); Department of Neurology, University Hospital Tübingen, Tübingen, Germany (G.T.); Department of Neurosurgery, University Hospital Frankfurt, Frankfurt am Main, Germany (C.S.); Department of Neurology, University Hospital Regensburg, Regensburg, Germany (P.H.); Department of Neurosurgery, University Hospital Düsseldorf, Düsseldorf, Germany (M.C.S.); Department of Neurology, University Hospital Bonn, Bonn, Germany (U.H.); Department of Neurosurgery, University Hospital Saarland, Homburg/Saar, Germany (R.K.); Department of Neurology, Knappschaftskrankenhaus Bochum, Bochum, Germany (U.S.); Department of Oncology, Vienna General Hospital, Vienna, Austria (C.M.); Institute of Neuropathology, University Hospital Düsseldorf, Düsseldorf, Germany (G.R.); Department of Neurology, University Hospital Heidelberg, Heidelberg, Germany (W.W.).
Goethe University Frankfurt · DEUniversity Hospital Heidelberg · DEDüsseldorf University Hospital · DEHeinrich Heine University Düsseldorf · DELudwig-Maximilians-Universität München · DEHeidelberg University · DEUniversity Hospital Frankfurt · DE
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe role of reoperation for recurrent glioblastoma (GBM) remains unclear. Prospective studies are lacking. Here, we studied the association of clinical outcome with extent of resection upon surgery for recurrent GBM in the patient cohort of DIRECTOR, a prospective randomized multicenter trial comparing 2 dose-intensified temozolomide regimens at recurrence of GBM.
methodsWe analyzed prospectively collected clinical and imaging data from the DIRECTOR cohort (N = 105). Volumetric analysis was performed on gadolinium contrast-enhanced MRI as well as fluid attenuated inversion recovery/T2 MRI and correlated with PFS after initial progression (PFS2) and post-recurrence survival (PRS). Quality of life was monitored by the EORTC QLQ-C30 and QLQ-BN20 questionnaires at 8-week intervals.
resultsSeventy-one patients received surgery at first recurrence. Prognostic factors, including age, MGMT promoter methylation, and Karnofsky performance score, were balanced between patients with and without reoperation. Outcome in patients with versus without surgery at recurrence was similar for PFS2 (2.0 mo vs 1.9 mo, P = .360) and PRS (11.4 mo vs 9.8 mo, P = .633). Among reoperated patients, post-surgery imaging was available in 59 cases. In these patients, complete resection of contrast-enhancing tumor (N = 40) versus residual detection of contrast enhancement (N = 19) was associated with improved PRS (12.9 mo [95% CI: 11.5-18.2] vs 6.5 mo [95% CI: 3.6-9.9], P < .001) and better quality of life. Incomplete tumor resection was associated with inferior PRS compared with patients who did not undergo surgery (6.5 vs 9.8 mo, P = .052). Quality of life was similar in these 2 groups.
conclusionSurgery at first recurrence of GBM improves outcome if complete resection of contrast-enhancing tumor is achieved.
Indexed as
Contrast MediaQuality of LifeAdultAgedBrain NeoplasmsFemaleFollow-Up StudiesGlioblastomaHumansMagnetic Resonance ImagingMaleMiddle AgedNeoplasm InvasivenessNeoplasm Recurrence, LocalNeoplasm StagingNeurosurgical ProceduresContrast MediaDIRECTORoutcomerecurrent GBMre-operationvolumetry
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