Evidence map›Paper›PMID 30286739›Full record

Trial reportBMC cancer2018

Population-based phase II trial of stereotactic ablative radiotherapy (SABR) for up to 5 oligometastases: SABR-5.

Robert Olson, Mitchell Liu, Alanah Bergman, Sonya Lam, Fred Hsu, Benjamin Mou, Tanya Berrang, Ante Mestrovic, Nick Chng, Derek Hyde and 10 more

Registry-linked trialOpen access · goldAbstract readClinical Trial, Phase II
In one paragraph

Trial report in BMC cancer, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02933242 (Phase II Non-randomized Trial of Stereotactic Ablative Radiotherapy), which is not on this map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 23% 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.

NCT02933242 naactive not recruitingnot on this map

Phase II Non-randomized Trial of Stereotactic Ablative Radiotherapy (SABR) for Oligometastases

TypeinterventionalSponsorBritish Columbia Cancer AgencyRan2016 to 2026Enrolled399ConditionsMetastatic TumorsArmsStereotactic Ablative Body Radiotherapy
3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. SEOR SBRT-SG stereotactic body radiation therapy consensus guidelines for non-spine bone metastasis.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2022
    Guideline
  2. Trial
  3. Review
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  5. 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

20 authors at 3 institutions in 1 country.

Robert OlsonUniversity of British Columbia, Vancouver, Canada. rolson2@bccancer.bc.ca.ORCID http://orcid.org/0000-0003-4532-6197
Mitchell LiuUniversity of British Columbia, Vancouver, Canada.
Alanah BergmanBC Cancer - Vancouver, Vancouver, Canada.
Sonya LamBC Cancer - Vancouver, Vancouver, Canada.
Fred HsuBC Cancer - Abbotsford, Abbotsford, Canada.
Benjamin MouBC Cancer - Kelowna, Kelowna, Canada.
Tanya BerrangBC Cancer - Victoria, Victoria, Canada.
Ante MestrovicBC Cancer - Victoria, Victoria, Canada.
Nick ChngBC Cancer - Prince George, 1215 Lethbridge Street, Prince George, BC, V2M7A9, Canada.
Derek HydeBC Cancer - Kelowna, Kelowna, Canada.
Quinn MatthewsBC Cancer - Prince George, 1215 Lethbridge Street, Prince George, BC, V2M7A9, Canada.
Chad LundBC Cancer - Surrey, Surrey, Canada.
Daniel GlickBC Cancer - Victoria, Victoria, Canada.
Howard PaiBC Cancer - Victoria, Victoria, Canada.
Parminder BasranBC Cancer - Victoria, Victoria, Canada.
Hannah CarolanBC Cancer - Vancouver, Vancouver, Canada.
Boris ValevBC Cancer - Prince George, 1215 Lethbridge Street, Prince George, BC, V2M7A9, Canada.
Shilo LefreseneBC Cancer - Vancouver, Vancouver, Canada.
Scott TyldesleyBC Cancer - Vancouver, Vancouver, Canada.
Devin SchellenbergBC Cancer - Surrey, Surrey, Canada.
Positive Living North · CAKelowna General Hospital · CAUniversity of British Columbia · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOligometastases refer to a state of disease where cancer has spread beyond the primary site, but is not yet widely metastatic, often defined as 1-3 or 1-5 metastases in number. Stereotactic ablative radiotherapy (SABR) is an emerging radiotherapy technique to treat oligometastases that require further prospective population-based toxicity estimates.

methodsThis is a non-randomized phase II trial where all participants will receive experimental SABR treatment to all sites of newly diagnosed or progressing oligometastatic disease. We will accrue 200 patients to assess toxicity associated with this experimental treatment. The study was powered to give a 95% confidence on the risk of late grade 4 toxicity, anticipating a < 5% rate of grade 4 toxicity. DISCUSSION: SABR treatment of oligometastases is occurring off-trial at a high rate, without sufficient evidence of its efficacy or toxicity. This trial will provide necessary toxicity data in a population-based cohort, using standardized doses and organ at risk constraints, while we await data on efficacy from randomized phase III trials.

trial registrationRegistered through clinicaltrials.gov NCT02933242 on October 14, 2016 prospectively before patient accrual.

Indexed as

AdultAgedCohort StudiesDisease ProgressionFemaleHumansMaleMiddle AgedNeoplasm MetastasisQuality of LifeRadiosurgerySurvival AnalysisOligometastasesRadiotherapyStereotactic ablative radiotherapy

Identifiers

PMID30286739
PMCPMC6172706
OpenAlexW2895716286

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.