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dc.contributor.authorNaismith, OFen_US
dc.contributor.authorGriffin, Cen_US
dc.contributor.authorSyndikus, Ien_US
dc.contributor.authorSouth, Cen_US
dc.contributor.authorMayles, Hen_US
dc.contributor.authorMayles, Pen_US
dc.contributor.authorKhoo, Ven_US
dc.contributor.authorScrase, Cen_US
dc.contributor.authorGraham, Jen_US
dc.contributor.authorHassan, Sen_US
dc.contributor.authorHall, Een_US
dc.contributor.authorDearnaley, DPen_US
dc.contributor.authorCHHiP Investigatorsen_US
dc.date.accessioned2019-04-29T13:51:25Z
dc.date.issued2019-09en_US
dc.identifier.citationClinical oncology (Royal College of Radiologists (Great Britain)), 2019, 31 (9), pp. 600 - 610en_US
dc.identifier.issn0936-6555en_US
dc.identifier.urihttps://repository.icr.ac.uk/handle/internal/3207
dc.identifier.eissn1433-2981en_US
dc.identifier.doi10.1016/j.clon.2019.05.002en_US
dc.description.abstract<h4>Aims</h4>The CHHiP (Conventional or Hypofractionated High-dose Intensity Modulated Radiotherapy In Prostate Cancer; CRUK/06/016) trial investigated hypofractionated radiotherapy for localised prostate cancer. Forward- (FP) or inverse-planned (IP) intensity-modulated techniques were permitted. Dose-volume histogram and toxicity data were compared to explore the effects of planning method.<h4>Materials and methods</h4>In total, 337 participants with intermediate-risk disease and prospectively collected toxicity data were included. Patients were matched on prostate and rectum/bladder volumes and on radiotherapy dose for toxicity comparisons. The primary outcome was grade 2 or higher Radiation Therapy Oncology Group (RTOG) bowel or bladder toxicity at 2 years.<h4>Results</h4>IP patients had smaller volumes of rectum irradiated to 50-70 Gy (P < 0.001); FP patients had smaller volumes of bladder irradiated to 74 Gy (P = 0.001). Acute grade 2 + bowel toxicity was worse with FP (27/53 [52%]; 11/53 [21%] IP; P = 0.0002); with no significant differences in acute urinary toxicity. At 2 years, RTOG grade 2 + bowel toxicity rates were FP 0/53 and IP 2/53 and RTOG grade 2 + bladder rates were FP 0/54 and IP 1/57.<h4>Conclusions</h4>Significant differences were found between dose-volume histograms from FP and IP methods. IP may result in small reductions in acute bowel toxicity but both techniques were associated with low rates of late radiotherapy side-effects.en_US
dc.formatPrint-Electronicen_US
dc.format.extent600 - 610en_US
dc.languageengen_US
dc.language.isoengen_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0en_US
dc.subjectCHHiP Investigatorsen_US
dc.subjectHumansen_US
dc.subjectRadiometryen_US
dc.subjectAgeden_US
dc.subjectMiddle Ageden_US
dc.subjectMaleen_US
dc.subjectRadiotherapy, Intensity-Modulateden_US
dc.subjectRadiation Dose Hypofractionationen_US
dc.titleForward- and Inverse-Planned Intensity-Modulated Radiotherapy in the CHHiP Trial: A Comparison of Dosimetry and Normal Tissue Toxicity.en_US
dc.typeJournal Article
dcterms.dateAccepted2019-03-27en_US
rioxxterms.versionofrecord10.1016/j.clon.2019.05.002en_US
rioxxterms.licenseref.urihttps://creativecommons.org/licenses/by/4.0en_US
rioxxterms.licenseref.startdate2019-09en_US
rioxxterms.typeJournal Article/Reviewen_US
dc.relation.isPartOfClinical oncology (Royal College of Radiologists (Great Britain))en_US
pubs.issue9en_US
pubs.notesNot knownen_US
pubs.organisational-group/ICR
pubs.organisational-group/ICR/Primary Group
pubs.organisational-group/ICR/Primary Group/ICR Divisions
pubs.organisational-group/ICR/Primary Group/ICR Divisions/Clinical Studies
pubs.organisational-group/ICR/Primary Group/ICR Divisions/Clinical Studies/Clinical Trials & Statistics Unit
pubs.organisational-group/ICR/Primary Group/ICR Divisions/Clinical Studies/ICR-CTSU Urology and Head and Neck Trials Team
pubs.organisational-group/ICR/Primary Group/ICR Divisions/Closed research teams
pubs.organisational-group/ICR/Primary Group/ICR Divisions/Closed research teams/Clinical Academic Radiotherapy (Dearnaley)
pubs.publication-statusPublisheden_US
pubs.volume31en_US
pubs.embargo.termsNot knownen_US
icr.researchteamClinical Trials & Statistics Uniten_US
icr.researchteamICR-CTSU Urology and Head and Neck Trials Teamen_US
icr.researchteamClinical Academic Radiotherapy (Dearnaley)en_US
dc.contributor.icrauthorHall, Emmaen_US
dc.contributor.icrauthorGriffin, Clareen_US
dc.contributor.icrauthorDearnaley, Daviden_US


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