Evidence map›Paper›PMID 31254266›Full record

SynthesisJournal of neuro-oncology2019

Efficacy and safety of bevacizumab for vestibular schwannoma in neurofibromatosis type 2: a systematic review and meta-analysis of treatment outcomes.

Victor M Lu, Krishnan Ravindran, Christopher S Graffeo, Avital Perry, Jamie J Van Gompel, David J Daniels, Michael J Link

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Journal of neuro-oncology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 1 pooled it
6.3field-weighted citation impact, top 3% 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, 1 synthesis or guideline pooled it, 86 citations in OpenAlex.

  1. Pooled it
  2. Efficacy and safety of bevacizumab for vestibular schwannomas in neurofibromatosis type-2: a systematic review and meta-analysis.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
    Review
  3. [BMJ open · 2026
    Article
  4. Review
  5. Article
  6. Article
  7. Efficacy of first line of bevacizumab in patients with neurofibromatosis 2-related vestibular schwannomas.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025
    Article
  8. Article
  9. Article
  10. Review
  11. Article
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  13. Article
  14. Article
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  16. Article
  17. Article
  18. Culture of attenuatedHuman vaccines & immunotherapeutics · 2023
    Article
  19. Review
  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

7 authors at 1 institution in 1 country.

Victor M LuDepartment of Neurosurgery, Mayo Clinic, 200 First St. SW, Rochester, MN, 55905, USA. lu.victor@mayo.edu.ORCID http://orcid.org/0000-0002-9470-5890
Krishnan RavindranDepartment of Neurosurgery, Mayo Clinic, 200 First St. SW, Rochester, MN, 55905, USA.
Christopher S GraffeoDepartment of Neurosurgery, Mayo Clinic, 200 First St. SW, Rochester, MN, 55905, USA.
Avital PerryDepartment of Neurosurgery, Mayo Clinic, 200 First St. SW, Rochester, MN, 55905, USA.
Jamie J Van GompelDepartment of Neurosurgery, Mayo Clinic, 200 First St. SW, Rochester, MN, 55905, USA.
David J DanielsDepartment of Neurosurgery, Mayo Clinic, 200 First St. SW, Rochester, MN, 55905, USA.
Michael J LinkDepartment of Neurosurgery, Mayo Clinic, 200 First St. SW, Rochester, MN, 55905, USA. link.michael@mayo.edu.
Mayo Clinic · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIndividual evidence suggests that the anti-angiogenic agent bevacizumab may control vestibular schwannoma (VS) growth and promote hearing preservation in patients with neurofibromatosis type 2 (NF2). However, such metadata has yet to be consolidated, as well as its side-effect profile yet to be fully understood. Our aim was to pool systematically-identified metadata in the literature and substantiate the clinical efficacy and safety of bevacizumab with respect to radiographic tumor response, hearing, and treatment outcomes.

methodsSearches of seven electronic databases from inception to March 2019 were conducted following PRISMA guidelines. Articles were screened against pre-specified criteria. The incidence of outcomes was then extracted and pooled by random-effects meta-analysis of proportions.

resultsEight articles reporting 161 NF2 patients with 196 assessable VS met satisfied all criteria. Radiographic response to bevacizumab was partial regression in 41% (95% CI 31-51%), no change in 47% (95% CI 39-55%), and tumor progression in 7% (95% CI 1-15%). In patients with assessable audiometric data, bevacizumab treatment resulted in hearing improvement in 20% (95% CI 9-33%), stability in 69% (95% CI 51-85%) and additional loss in 6% (95% CI 1-15%) Serious bevacizumab toxicity was observed in 17% (95% CI 10-26%). Subsequent surgical intervention was required in 11% (95% CI 2-20%).

conclusionsBevacizumab may arrest both tumor progression and hearing loss in select NF2 patients presenting with VS lesions. However, a considerable proportion of patients are anticipated to experience serious adverse events; correspondingly, judicious use of bevacizumab for symptomatic management of VS in NF2 is recommended.

Indexed as

Angiogenesis InhibitorsBevacizumabHearing LossHumansNeurofibromatosis 2Neuroma, AcousticTreatment OutcomeAngiogenesis InhibitorsBevacizumabAvastinBevacizumabNeurofibromatosis type 2NF2Schwannoma

Identifiers

PMID31254266
OpenAlexW2953688818

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.