Evidence map›Paper›PMID 33984146›Full record

ArticleNeuro-oncology2022

Reactor-based boron neutron capture therapy for 44 cases of recurrent and refractory high-grade meningiomas with long-term follow-up.

Satoshi Takai, Masahiko Wanibuchi, Shinji Kawabata, Koji Takeuchi, Yoshinori Sakurai, Minoru Suzuki, Koji Ono, Shin-Ichi Miyatake

Abstract read
In one paragraph

Article in Neuro-oncology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–field-weighted citation impact
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

23 citing papers in PubMed.

  1. Article
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  10. Human Serum Albumin-CoatedAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
  11. Review
  12. Article
  13. Boron neutron capture therapy of cancer: where do we stand now?Cancer communications (London, England) · 2024
    Article
  14. Article
  15. Article
  16. Review
  17. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Satoshi TakaiDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Masahiko WanibuchiDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Shinji KawabataDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Koji TakeuchiDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Yoshinori SakuraiRadiation Oncology Research Laboratory, Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori, Osaka, Japan.
Minoru SuzukiRadiation Oncology Research Laboratory, Institute for Integrated Radiation and Nuclear Science, Kyoto University, Kumatori, Osaka, Japan.
Koji OnoKansai BNCT Medical Center, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.
Shin-Ichi MiyatakeDepartment of Neurosurgery, Osaka Medical and Pharmaceutical University, Takatsuki, Osaka, Japan.ORCID 0000-0001-8056-1016

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHigh-grade meningioma (HGM) is difficult to treat, and recurrent HGM after radiotherapy has an especially poor prognosis. We retrospectively analyzed the cases of 44 consecutive patients with recurrent and refractory HGM who were treated by reactor-based boron neutron capture therapy (BNCT).

methodsIn 2005-2019, we treated 44 recurrent and refractory HGMs by reactor-based BNCT. We analyzed the patients' tumor shrinkage, overall survival (OS) after initial diagnosis, OS after BNCT, progression-free survival (PFS) post-BNCT, and treatment failure patterns.

resultsThe median OS (mOS) after BNCT and mOS after initial diagnosis were 29.6 (95% CI: 16.1-40.4) and 98.4 (95% CI: 68.7-169.4) months, respectively. The median follow-up after BNCT was 26 (6.4-103) months. The grade 2 (20 cases) and 3 (24 cases) post-BNCT mOS values were 44.4 (95% CI: 27.4-not determined) and 21.55 (10.6-30.6) months, respectively (P = .0009). Follow-up images were obtained from 36 cases at >3 months post-BNCT; 35 showed tumor shrinkage during the observation period. The post-BNCT median PFS (mPFS) of 36 cases was 13.7 (95% CI: 8.3-28.6) months. The post-BNCT mPFS values in patients with grade 2 and 3 disease were 24.3 (95% CI: 9.8-not determined) and 9.4 (6.3-14.4) months, respectively (P = .0024). Local recurrence was observed in only 22.2% of cases. These results showed good local tumor control and prolonged survival for recurrent HGM cases.

conclusionsMost of these cases had relatively large tumor volumes. The proportion of grade 3 patients was extremely high. Our patients thus seemed to have poor prognoses. Nevertheless, reactor-based BNCT exerted relatively good local control and favorable survival for recurrent and refractory HGMs.

Indexed as

Boron Neutron Capture TherapyBrain NeoplasmsMeningeal NeoplasmsMeningiomaBoron CompoundsFollow-Up StudiesHumansRetrospective StudiesBoron Compoundsboron neutron capture therapyhigh-grade meningiomanuclear reactorradiotherapy

Identifiers

PMID33984146
PMCPMC8730746

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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.