Evidence map›Paper›PMID 26359208›Full record

SynthesisNeuro-oncology2016

Chemotherapy increases long-term survival in patients with adult medulloblastoma--a literature-based meta-analysis.

Selin Kocakaya, Christoph Patrick Beier, Dagmar Beier

Open access · bronzeAbstract readMeta-Analysis
In one paragraph

Synthesis in Neuro-oncology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 3 pooled it
2.6field-weighted citation impact, top 10% 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

42 citing papers in PubMed, 3 syntheses or guidelines pooled it, 75 citations in OpenAlex.

  1. Pooled it
  2. SEOM clinical guideline for management of adult medulloblastoma (2020).Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2021
    Guideline
  3. Pooled it
  4. Trial
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Pediatric-Like Brain Tumors in Adults.Advances and technical standards in neurosurgery · 2024
    Review
  15. Global trends, gaps, and future agenda in medulloblastoma research: a bibliometric analysis.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2023
    Article
  16. Article
  17. Article
  18. Article
  19. Adult medulloblastoma: a case report.Journal of medical case reports · 2022
    Article
  20. Review
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

3 authors at 2 institutions in 2 countries.

Selin KocakayaDepartment of Neurology, RWTH Aachen, Aachen, Germany (S.K., C.P.B., D.B.); Department of Neurology, University Hospital Odense and Clinical Institute, University of Southern Denmark, Odense, Denmark (C.P.B., D.B.).
Christoph Patrick BeierDepartment of Neurology, RWTH Aachen, Aachen, Germany (S.K., C.P.B., D.B.); Department of Neurology, University Hospital Odense and Clinical Institute, University of Southern Denmark, Odense, Denmark (C.P.B., D.B.).
Dagmar BeierDepartment of Neurology, RWTH Aachen, Aachen, Germany (S.K., C.P.B., D.B.); Department of Neurology, University Hospital Odense and Clinical Institute, University of Southern Denmark, Odense, Denmark (C.P.B., D.B.).
RWTH Aachen University · DEUniversity of Southern Denmark · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAdult medulloblastoma is a potentially curable malignant entity with an incidence of 0.5-1 per million. Valid data on prognosis, treatment, and demographics are lacking, as most current knowledge stems from retrospective studies. Surgical resection followed by radiotherapy are accepted parts of treatment regimes; however, established prognostic factors and data clarifying the role of chemotherapy are missing.

methodsWe investigated 227 publications from 1969-2013, with 907 identifiable, individual patients being available for meta-analysis. Demographic data, risk stratification, and treatment of these patients were similar to previous cohorts.

resultsThe median overall survival (mOS) was 65 months (95% CI: 54.6-75.3) , the 5-year overall survival was 50.9% with 16% of the patients dying more than 5 years after diagnosis. Incomplete resection, clinical and radiological signs for brainstem infiltration, and abstinence from radiotherapy were predictive of worse outcome. Metastatic disease at tumor recurrence was identified as a new prognostic factor, while neither metastasis at initial diagnosis nor desmoplastic/classic histology was correlated with survival. Patients receiving chemotherapy first-line survived significantly longer (mOS: 108 mo, 95% CI: 68.6-148.4) than patients treated with radiation alone (mOS: 57 mo, 95% CI: 39.6-74.4) or patients who received chemotherapy at tumor recurrence. This effect was not biased by tumor stage or decade of treatment. Importantly, (neo)adjuvant chemotherapy also significantly increased the chance for long-term survival (>5 y) compared with radiotherapy alone or chemotherapy at tumor recurrence.

conclusionsThis meta-analysis clarifies relevant prognostic factors and suggests that chemotherapy as part of first-line therapy improves overall survival and increases the proportion of patients with long-term survival.

Indexed as

AdultAgedAntineoplastic Combined Chemotherapy ProtocolsCombined Modality TherapyDisease-Free SurvivalHumansMaleMedulloblastomaMiddle AgedPrognosisRetrospective StudiesTreatment Outcomeadult medulloblastomachemotherapylong-term survivalmeta-analysisradiotherapy

Identifiers

PMID26359208
PMCPMC4767241
OpenAlexW2266662601

What OpenQuestion holds

Textmetadata
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.