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  • Sjöström, MartinLund University,Lunds universitet,Bröstcancer-genetik,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Individuell Bröstcancerbehandling,Forskargrupper vid Lunds universitet,Breastcancer-genetics,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Personalized Breast Cancer Treatment,Lund University Research Groups,Skåne University Hospital (author)

Clinicogenomic Radiotherapy Classifier Predicting the Need for Intensified Locoregional Treatment After Breast-Conserving Surgery for Early-Stage Breast Cancer.

  • Article/chapterEnglish2019

Publisher, publication year, extent ...

  • 2019

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  • LIBRIS-ID:oai:gup.ub.gu.se/284779
  • https://gup.ub.gu.se/publication/284779URI
  • https://doi.org/10.1200/JCO.19.00761DOI
  • https://lup.lub.lu.se/record/8df7655a-51b6-4e3d-9ada-a1842794852dURI

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  • Language:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Most patients with early-stage breast cancer are treated with adjuvant radiotherapy (RT) after breast-conserving surgery (BCS) to prevent locoregional recurrence (LRR). However, no genomic tools are used currently to select the optimal RT strategy.We profiled the transcriptome of primary tumors on a clinical grade assay from the SweBCG91-RT trial, in which patients with node-negative breast cancer were randomly assigned to either whole-breast RT after BCS or no RT. We derived a new classifier, Adjuvant Radiotherapy Intensification Classifier (ARTIC), comprising 27 genes and patient age, in three publicly available cohorts, then independently validated ARTIC for LRR in 748 patients in SweBCG91-RT. We also compared previously published genomic signatures for ability to predict benefit from RT in SweBCG91-RT.ARTIC was highly prognostic for LRR in patients treated with RT (hazard ratio [HR], 3.4; 95% CI, 2.0 to 5.9; P < .001) and predictive of RT benefit (Pinteraction = .005). Patients with low ARTIC scores had a large benefit from RT (HR, 0.33 [95% CI, 0.21 to 0.52], P < .001; 10-year cumulative incidence of LRR, 6% v 21%), whereas those with high ARTIC scores benefited less from RT (HR, 0.73 [95% CI, 0.44 to 1.2], P = .23; 10-year cumulative incidence of LRR, 25% v 32%). In contrast, none of the eight previously published signatures were predictive of benefit from RT in SweBCG91-RT.ARTIC identified women with a substantial benefit from RT as well as women with a particularly elevated LRR risk in whom whole-breast RT was not sufficiently effective and, thus, in whom intensified treatment strategies such as tumor-bed boost, and possibly regional nodal RT, should be considered. To our knowledge, ARTIC is the first classifier validated as predictive of benefit from RT in a phase III clinical trial with patients randomly assigned to receive or not receive RT.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Chang, S LauraPFS Genomics INC (author)
  • Fishbane, NickDecipher Biosciences Inc (author)
  • Davicioni, ElaiDecipher Biosciences Inc (author)
  • Zhao, Shuang GUniversity of Michigan (author)
  • Hartman, LindaLund University,Lunds universitet,Bröstcancer-genetik,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Individuell Bröstcancerbehandling,Forskargrupper vid Lunds universitet,Breastcancer-genetics,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Personalized Breast Cancer Treatment,Lund University Research Groups(Swepub:lu)li3247we (author)
  • Holmberg, Erik,1951Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för onkologi,Institute of Clinical Sciences, Department of Oncology,Sahlgrenska University Hospital(Swepub:gu)xholer (author)
  • Feng, Felix YUniversity of California, San Francisco (author)
  • Speers, Corey WUniversity of Michigan (author)
  • Pierce, Lori JUniversity of Michigan (author)
  • Malmström, PerLund University,Lunds universitet,Tumörmikromiljö,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Bröstcancer-genetik,Institutionen för kliniska vetenskaper, Lund,Tumor microenvironment,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Breastcancer-genetics,Department of Clinical Sciences, Lund,Skåne University Hospital(Swepub:lu)onk-pma (author)
  • Fernö, MårtenLund University,Lunds universitet,Bröstcancer-genetik,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Individuell Bröstcancerbehandling,Forskargrupper vid Lunds universitet,Breastcancer-genetics,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Personalized Breast Cancer Treatment,Lund University Research Groups,Skåne University Hospital(Swepub:lu)onk-mfe (author)
  • Karlsson, Per,1963Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för onkologi,Institute of Clinical Sciences, Department of Oncology,Sahlgrenska University Hospital(Swepub:gu)xkperd (author)
  • Bröstcancer-genetikSektion I (creator_code:org_t)

Related titles

  • In:Journal of clinical oncology : official journal of the American Society of Clinical Oncology37:35, s. 3340-33491527-7755
  • In:Journal of Clinical Oncology37:35, s. 3340-33490732-183X

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