Evidence map›Paper›PMID 37515669›Full record

Trial reportJournal of neuro-oncology2023

Phase II study of border zone stereotactic radiosurgery with bevacizumab in patients with recurrent or progressive glioblastoma multiforme.

Megan Mantica, Jan Drappatz, Frank Lieberman, Constantinos G Hadjipanayis, L Dade Lunsford, Ajay Niranjan

Abstract readClinical Trial, Phase II
PubMed Publisher
In one paragraph

Trial report in Journal of neuro-oncology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
3.7field-weighted citation impact, top 7% 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

8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Article
  6. Review
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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

6 authors at 1 institution in 1 country.

Megan ManticaUniversity of Pittsburgh Medical Center, 5150 Centre Avenue, Pittsburgh, PA, 15232, USA. manticam@upmc.edu.
Jan DrappatzUniversity of Pittsburgh Medical Center, 5150 Centre Avenue, Pittsburgh, PA, 15232, USA.
Frank LiebermanUniversity of Pittsburgh Medical Center, 5150 Centre Avenue, Pittsburgh, PA, 15232, USA.
Constantinos G HadjipanayisUniversity of Pittsburgh Medical Center, 200 Lothrop Street, Pittsburgh, PA, 15213, USA.
L Dade LunsfordUniversity of Pittsburgh Medical Center, 200 Lothrop Street, Pittsburgh, PA, 15213, USA.
Ajay NiranjanUniversity of Pittsburgh Medical Center, 200 Lothrop Street, Pittsburgh, PA, 15213, USA.
University of Pittsburgh Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeRecurrent glioblastoma is universally fatal with limited effective treatment options. The aim of this phase 2 study of Border Zone SRS plus bevacizumab was to evaluate OS in patients with recurrent GBM.

methodsPatients with histologically confirmed GBM with recurrent disease who had received prior first-line treatment with fractionated radiotherapy and chemotherapy and eligible for SRS were enrolled. Bevacizumab 10 mg/kg was given day -1, day 14, and then every 14 days until disease progression. 1-14 days before BZ-SRS procedure, patients underwent brain MRI /MRS. MRS with measurement of choline-to-N-acetyl aspartate index (CNI) area ≥ 3 was targeted for SRS.

resultsFrom 2015-2017, sixteen of planned 40 patients were enrolled. The median age was 62 (range, 48-74Y). 3/16 (0.188) participants experienced grade 2 toxicity. No AREs were reported. The mOS was 11.73 months compared to 8.74 months (P = 0.324) from date of SRS for the BZ-SRS and institutional historical controls, respectively. PFS-6 and OS-6 were 31.2% (p = 0.00294) and 81.2%(p = 0.058), respectively. Of 13 evaluable for best response: 1 CR (p = 0.077), 4 PR (p = 0.308), 7 SD (p = 0.538), and 1 PD (p = 0.077). 11/16 participants had MRS scans with an estimated probability that MRS changes a treatment plan of 0 (0, 0.285).

conclusionBZ-SRS with bevacizumab was feasible and well tolerated. There is no significant survival benefit using BZ-SRS with bevacizumab compared to institutional historical controls. Secondary analysis revealed a trend toward improved PFS-6, but not OS-6 after BZ-SRS. MRS scans did not result in changes to SRS treatment plans.

Indexed as

Brain NeoplasmsGlioblastomaRadiosurgeryBevacizumabHumansMiddle AgedNeoplasm Recurrence, LocalBevacizumabBevacizumabGlioblastomaHigh-grade GliomaSpectroscopyStereotactic Radiosurgery

Identifiers

PMID37515669
OpenAlexW4385380512

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.