Evidence map›Paper›PMID 30644009›Full record

Trial reportJournal of neuro-oncology2019

Effects of 5-ALA dose on resection of glioblastoma.

Alex P Michael, Victoria L Watson, Daniel Ryan, Kristin R Delfino, Simon V Bekker, Jeffrey W Cozzens

Abstract readClinical Trial, Phase IClinical Trial, Phase II
PubMed Publisher
In one paragraph

Trial report 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 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
3.0field-weighted citation impact, top 9% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Review
  6. Review
  7. Article
  8. Article
  9. Relationship between tumor cell infiltration and 5-aminolevulinic acid fluorescence signals after resection of MR-enhancing lesions and its prognostic significance in glioblastoma.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2021
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. An Overview of Managements in Meningiomas.Frontiers in oncology · 2020
    Review
  15. Article
  16. 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

6 authors at 1 institution in 1 country.

Alex P MichaelDivision of Neurosurgery, Southern Illinois University School of Medicine, 421 N. 9th Street, Springfield, IL, 62702, USA. amichael@siumed.edu.ORCID http://orcid.org/0000-0003-4704-7722
Victoria L WatsonDivision of Neurosurgery, Southern Illinois University School of Medicine, 421 N. 9th Street, Springfield, IL, 62702, USA.
Daniel RyanDepartment of Radiology, Southern Illinois University School of Medicine, 421 N. 9th Street, Springfield, IL, 62702, USA.
Kristin R DelfinoCenter for Clinical Research, SIU School of Medicine, 201 E. Madison, P.O. Box 19664, Springfield, IL, 62794-9664, USA.
Simon V BekkerDepartment of Radiology, Southern Illinois University School of Medicine, 111 Oakwood Road, East Peoria, IL, 61611, USA.
Jeffrey W CozzensDivision of Neurosurgery, Southern Illinois University School of Medicine, 421 N. 9th Street, Springfield, IL, 62702, USA.
Southern Illinois University School of Medicine · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeFluorescence-guided surgery (FGS) with the use of 5-aminolevulinic acid (5-ALA) leads to more extensive resection of high-grade glioma (HGG) and longer overall survival (OS) of patients compared to conventional resection. The purpose of this study is to investigate the effect of 5-ALA dosages on residual tumor volume (RTV) and OS in patients with glioblastoma.

methodsA retrospective cohort study for patients who participated in a phase I and II dose-escalation clinical trial on 5-ALA for resection of HGG. A total of 25 patients were found to have newly diagnosed glioblastoma on histology and enrolled in our study. Patients receiving low doses of 5-ALA (10-30 mg/kg) (n = 6) were compared to those receiving high doses (40-50 mg/kg) (n = 19). Pre- and post-operative contrast enhanced T1W MRI were evaluated with volumetric analysis.

resultsMedian RTV was 0.69 cm

conclusionsHigh doses of 5-ALA FGS are associated with less RTV and greater probability of GTR. 5-ALA dose was not associated with OS. Further studies with a larger patient cohort are warranted.

Indexed as

Aminolevulinic AcidFluorescent DyesOptical ImagingSurgery, Computer-AssistedAdultAgedAged, 80 and overBrain NeoplasmsContrast MediaDose-Response Relationship, DrugFemaleGlioblastomaHumansMagnetic Resonance ImagingMaleMiddle AgedAminolevulinic AcidContrast MediaFluorescent Dyes5-ALA5-Aminolevulinic acidGlioblastomaVolumetric analysis

Identifiers

PMID30644009
OpenAlexW2910753775

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.