Evidence map›Paper›PMID 27342249›Full record

ArticleRadiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology2016

Intensity-modulated proton beam therapy (IMPT) versus intensity-modulated photon therapy (IMRT) for patients with oropharynx cancer - A case matched analysis.

Pierre Blanchard, Adam S Garden, G Brandon Gunn, David I Rosenthal, William H Morrison, Mike Hernandez, Joseph Crutison, Jack J Lee, Rong Ye, C David Fuller and 9 more

Open access · hybridAbstract read
In one paragraph

Article in Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 118 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
118citing papers in PubMed, 3 pooled it
17.8field-weighted citation impact, top 1% 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

118 citing papers in PubMed, 3 syntheses or guidelines pooled it, 228 citations in OpenAlex.

  1. Evidence-based indications for proton therapy in adults determined using the GRADE approach.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
    Pooled it
  2. Guideline
  3. Transoral robotic surgery and intensity-modulated radiotherapy in the treatment of the oropharyngeal carcinoma: a systematic review and meta-analysis.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2021
    Pooled it
  4. Trial
  5. Randomized Clinical Trial on Reduction of Radiotherapy Dose to the Elective Neck in Head and Neck Squamous Cell Carcinoma: Results on the Quality of Life.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2021
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58 more citing papers are in PubMed but not listed here.

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

19 authors at 3 institutions in 3 countries.

Pierre BlanchardDepartment of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Radiation Oncology, Institut Gustave Roussy, Villejuif, France.
Adam S GardenDepartment of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA.
G Brandon GunnDepartment of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA.
David I RosenthalDepartment of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA.
William H MorrisonDepartment of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA.
Mike HernandezDepartment of Quantitative Sciences, The University of Texas MD Anderson Cancer Center, Houston, USA.
Joseph CrutisonDepartment of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA.
Jack J LeeDepartment of Quantitative Sciences, The University of Texas MD Anderson Cancer Center, Houston, USA.
Rong YeDepartment of Quantitative Sciences, The University of Texas MD Anderson Cancer Center, Houston, USA.
C David FullerDepartment of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA; Medical Physics Program, The University of Texas Graduate School of Biomedical Sciences, Houston, USA.
Abdallah S R MohamedDepartment of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA; Department of Clinical Oncology and Nuclear Medicine, University of Alexandria, Egypt.
Kate A HutchesonDepartment of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, USA.
Emma B HollidayDepartment of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA.
Nikhil G ThakerDepartment of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA.
Erich M SturgisDepartment of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, USA.
Merrill S KiesDepartment of Thoracic/Head & Neck Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA.
X Ronald ZhuDepartment of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, USA.
Radhe MohanDepartment of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, USA.
Steven J FrankDepartment of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA. Electronic address: sjfrank@mdanderson.org.
The University of Texas MD Anderson Cancer Center · USAlexandria University · EGInstitut Gustave Roussy · FR

Funding

Tumor Evolution and Metastasis ProgramP30CA016672 · NCI · UNIVERSITY OF TX MD ANDERSON CAN CTR · PI Scott Kopetz · 1985 to 2026
$290.8M
Statistics, Data Exchange, Management and SupportP01CA021239 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI DELANEY, THOMAS F · 1985 to 2013
$28.3M
MDACC Clinical and Research Physics SupportU19CA021239 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI MOHAN, RADHE · 2014 to 2018
$11.2M
NCI NIH HHS P01 CA021239NCI NIH HHS P30 CA016672NCI NIH HHS U19 CA021239
6 · The paper itself

Abstract

backgroundOwing to its physical properties, intensity-modulated proton therapy (IMPT) used for patients with oropharyngeal carcinoma has the ability to reduce the dose to organs at risk compared to intensity-modulated radiotherapy (IMRT) while maintaining adequate tumor coverage. Our aim was to compare the clinical outcomes of these two treatment modalities.

methodsWe performed a 1:2 matching of IMPT to IMRT patients. Our study cohort consisted of IMPT patients from a prospective quality of life study and consecutive IMRT patients treated at a single institution during the period 2010-2014. Patients were matched on unilateral/bilateral treatment, disease site, human papillomavirus status, T and N status, smoking status, and receipt of concomitant chemotherapy. Survival analyzes were performed using a Cox model and binary toxicity endpoints using a logistic regression analysis.

resultsFifty IMPT and 100 IMRT patients were included. The median follow-up time was 32months. There were no imbalances in patient/tumor characteristics except for age (mean age 56.8years for IMRT patients and 61.1years for IMPT patients, p-value=0.010). Statistically significant differences were not observed in overall survival (hazard ratio (HR)=0.55; 95% confidence interval (CI): 0.12-2.50, p-value=0.44) or in progression-free survival (HR=1.02; 95% CI: 0.41-2.54; p-value=0.96). The age-adjusted odds ratio (OR) for the presence of a gastrostomy (G)-tube during treatment for IMPT vs IMRT were OR=0.53; 95% CI: 0.24-1.15; p-value=0.11 and OR=0.43; 95% CI: 0.16-1.17; p-value=0.10 at 3months after treatment. When considering the pre-planned composite endpoint of grade 3 weight loss or G-tube presence, the ORs were OR=0.44; 95% CI: 0.19-1.0; p-value=0.05 at 3months after treatment and OR=0.23; 95% CI: 0.07-0.73; p-value=0.01 at 1year after treatment.

conclusionOur results suggest that IMPT is associated with reduced rates of feeding tube dependency and severe weight loss without jeopardizing outcome. Prospective multicenter randomized trials are needed to validate such findings.

Indexed as

AdultAgedDisease-Free SurvivalEnteral NutritionFemaleHumansMaleMiddle AgedOropharyngeal NeoplasmsProton TherapyQuality of LifeRadiotherapy, Intensity-ModulatedChemoradiationHuman papilloma virusIntensity-modulated proton therapyIntensity-modulated radiotherapyOropharyngeal cancerRadiation therapy

Identifiers

PMID27342249
PMCPMC5474304
OpenAlexW2466142508

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.