Evidence map›Paper›PMID 36582423›Full record

ArticleClinical and translational radiation oncology2023

Preoperative short-course radiation therapy with PROtons compared to photons in high-risk RECTal cancer (PRORECT): Initial dosimetric experience.

Cristiana Pedone, Bruno Sorcini, Caroline Staff, Johanna Färlin, Tone Fokstuen, Jan-Erik Frödin, Per J Nilsson, Anna Martling, Alexander Valdman

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Clinical and translational radiation oncology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04525989 (Preoperative Short-Course Radiation Therapy With PROtons Compared to Photons In High-Risk RECTal Cancer), which is not on this map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 14% 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.

NCT04525989 narecruitingnot on this map

Preoperative Short-Course Radiation Therapy With PROtons Compared to Photons In High-Risk RECTal Cancer (PRORECT): A Prospective Randomized Swedish Phase II Trial

TypeinterventionalSponsorAlexander ValdmanRan2021 to 2028Enrolled254ConditionsRectal CancerArmsRadiation therapy
3 · Its place in the literature

Who cites it

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

  1. Pooled it
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  10. Particle therapy in gastrointestinal cancer-a narrative review.Journal of gastrointestinal oncology · 2024
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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

9 authors at 3 institutions in 2 countries.

Cristiana PedoneDepartment of Radiation Oncology, Karolinska University Hospital, Stockholm, Sweden.
Bruno SorciniDepartment of Radiotherapy Physics and Engineering, Medical Physics and Nuclear Medicine, Karolinska University Hospital, Stockholm, Sweden.
Caroline StaffDepartment of Oncology, Capio S:t Göran Hospital, Stockholm, Sweden.
Johanna FärlinThe Skandion Clinic, Swedish National Proton Beam Therapy Facility, Uppsala, Sweden.
Tone FokstuenDivision of Oncology, Department of Pelvic Cancer, Karolinska University Hospital, Sweden.
Jan-Erik FrödinUpper GI Unit, Theme Cancer, Karolinska University Hospital, Stockholm, Sweden.
Per J NilssonDivision of Coloproctology, Department of Pelvic Cancer, Karolinska University Hospital, Sweden.
Anna MartlingDivision of Coloproctology, Department of Pelvic Cancer, Karolinska University Hospital, Sweden.
Alexander ValdmanDepartment of Radiation Oncology, Karolinska University Hospital, Stockholm, Sweden.
Karolinska University Hospital · SESaint Göran Hospital · SESwedish Veterinary Agency · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and purpose: Neoadjuvant short-course radiotherapy (SCRT) followed by full-dose systemic chemotherapy is an established treatment modality in locally advanced rectal cancer (LARC). Until recently, SCRT has been exclusively delivered with photons. Proton beam therapy (PBT) may minimize acute toxicity, which in turn likely impacts favorably on the tolerability to subsequent chemotherapy. The aim of this study is a dosimetric comparison between SCRT with photons and protons in the randomized phase II trial PRORECT (NCT04525989). Materials and methods: From June 2021 to June 2022, twenty consecutive patients with LARC have been treated according to study protocol. For each patient, both a VMAT and a PBT treatment plans have been generated and compared pairwise. Results: Dose-volume histogram (DVH) analysis revealed that SCRT with protons significantly reduced radiation dose to pelvic organs at risk including bladder, bones, and bowel in comparison to SCRT with photons. Photon and proton treatment plans had equivalent conformity and homogeneity indexes. Conclusion: Preoperative SCRT with protons offers a significant reduction of radiation dose to normal tissues compared with current photon-based radiotherapy technique. Demonstrated dosimetric advantages may translate into measurable clinical benefits in patients with LARC. Clinical implications of the dosimetric superiority of SCRT with protons will be presented in the coming reports from the PRORECT trial.

Indexed as

Dosimetric comparisonProtonRectal cancerShort-courseToxicity

Identifiers

PMID36582423
PMCPMC9792362
OpenAlexW4312084753

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.