Evidence map›Paper›PMID 37173955›Full record

ReviewCancers2023

Proton Beam Therapy in the Oligometastatic/Oligorecurrent Setting: Is There a Role? A Literature Review.

Simona Gaito, Giulia Marvaso, Ramon Ortiz, Adrian Crellin, Marianne C Aznar, Daniel J Indelicato, Shermaine Pan, Gillian Whitfield, Filippo Alongi, Barbara Alicja Jereczek-Fossa and 5 more

Abstract readReview
In one paragraph

Review in Cancers, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Review
  2. Review
  3. Article
  4. Cancer Pain: Radiotherapy as a Double-Edged Sword.International journal of molecular sciences · 2025
    Review
  5. Article
  6. Article
  7. Article
  8. Article
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  11. 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

15 authors.

Simona GaitoProton Clinical Outcomes Unit, The Christie NHS Proton Beam Therapy Centre, Manchester M20 4BX, UK.ORCID 0000-0003-3766-7506
Giulia MarvasoDepartment of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy.ORCID 0000-0002-5339-8038
Ramon OrtizDepartment of Radiation Oncology, University of California, San Francisco, CA 94720, USA.ORCID 0000-0002-4628-8121
Adrian CrellinNational Lead Proton Beam Therapy NHSe, Manchester M20 4BX, UK.
Marianne C AznarDivision of Clinical Cancer Science, School of Medical Sciences, The University of Manchester, Manchester M13 9PL, UK.
Daniel J IndelicatoDepartment of Radiation Oncology, University of Florida, Jacksonville, FL 32206, USA.
Shermaine PanDepartment of Proton Beam Therapy, The Christie Proton Beam Therapy Centre, Manchester M20 3DA, UK.
Gillian WhitfieldDivision of Clinical Cancer Science, School of Medical Sciences, The University of Manchester, Manchester M13 9PL, UK.ORCID 0000-0003-4886-4329
Filippo AlongiAdvanced Radiation Oncology Department, IRCCS Ospedale Sacro Cuore don Calabria, 37024 Verona, Italy.ORCID 0000-0002-6569-8628
Barbara Alicja Jereczek-FossaDepartment of Oncology and Hemato-Oncology, University of Milan, 20122 Milan, Italy.
Neil BurnetDepartment of Proton Beam Therapy, The Christie Proton Beam Therapy Centre, Manchester M20 3DA, UK.
Michelle P LiDepartment of Proton Beam Therapy, The Christie Proton Beam Therapy Centre, Manchester M20 3DA, UK.
Bethany RothwellDivision of Physics, Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA.ORCID 0000-0002-3323-671X
Ed SmithProton Clinical Outcomes Unit, The Christie NHS Proton Beam Therapy Centre, Manchester M20 4BX, UK.ORCID 0000-0002-4849-1465
Rovel J ColacoDepartment of Proton Beam Therapy, The Christie Proton Beam Therapy Centre, Manchester M20 3DA, UK.ORCID 0000-0001-7307-3620

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStereotactic ablative radiotherapy (SABR) and stereotactic radiosurgery (SRS) with conventional photon radiotherapy (XRT) are well-established treatment options for selected patients with oligometastatic/oligorecurrent disease. The use of PBT for SABR-SRS is attractive given the property of a lack of exit dose. The aim of this review is to evaluate the role and current utilisation of PBT in the oligometastatic/oligorecurrent setting.

methodsUsing Medline and Embase, a comprehensive literature review was conducted following the PICO (Patients, Intervention, Comparison, and Outcomes) criteria, which returned 83 records. After screening, 16 records were deemed to be relevant and included in the review.

resultsSix of the sixteen records analysed originated in Japan, six in the USA, and four in Europe. The focus was oligometastatic disease in 12, oligorecurrence in 3, and both in 1. Most of the studies analysed (12/16) were retrospective cohorts or case reports, two were phase II clinical trials, one was a literature review, and one study discussed the pros and cons of PBT in these settings. The studies presented in this review included a total of 925 patients. The metastatic sites analysed in these articles were the liver (4/16), lungs (3/16), thoracic lymph nodes (2/16), bone (2/16), brain (1/16), pelvis (1/16), and various sites in 2/16.

conclusionsPBT could represent an option for the treatment of oligometastatic/oligorecurrent disease in patients with a low metastatic burden. Nevertheless, due to its limited availability, PBT has traditionally been funded for selected tumour indications that are defined as curable. The availability of new systemic therapies has widened this definition. This, together with the exponential growth of PBT capacity worldwide, will potentially redefine its commissioning to include selected patients with oligometastatic/oligorecurrent disease. To date, PBT has been used with encouraging results for the treatment of liver metastases. However, PBT could be an option in those cases in which the reduced radiation exposure to normal tissues leads to a clinically significant reduction in treatment-related toxicities.

Indexed as

oligometastasesoligorecurrencesproton beam therapy

Identifiers

PMID37173955
PMCPMC10177340

What OpenQuestion holds

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Registered trials

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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.