% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Forster:276333, author = {T. Forster and C. Köhler and M. Dorn and M. F. Häfner and N. Arians and L. König and S. B. Harrabi and I. Schlampp and F. Weykamp and E. Meixner and K. Lang and V. Heinrich and N. Weidner and J. Hüsing and M. Wallwiener and M. Golatta and A. Hennigs and J. Heil and H. Hof and D. Krug and J. Debus$^*$ and J. Hörner-Rieber$^*$}, title = {{N}on-inferiority of local control and comparable toxicity of intensity-modulated radiotherapy with simultaneous integrated boost in breast cancer: 5-year results of the {IMRT}-{MC}2 phase {III} trial: {IMRT}-{SIB} is non-inferior to 3-{D}-{CRT}-seq{B} in {RT} for {BC} patients.}, journal = {International journal of radiation oncology, biology, physics}, volume = {117}, number = {4}, issn = {0360-3016}, address = {Amsterdam [u.a.]}, publisher = {Elsevier Science}, reportid = {DKFZ-2023-01063}, pages = {857-868}, year = {2023}, note = {2023 Nov 15;117(4):857-868 / #LA:E050#}, abstract = {The IMRT-MC2 trial was conducted to demonstrate non-inferiority of conventionally fractionated intensity-modulated radiotherapy with simultaneous integrated boost (IMRT-SIB) to 3-D-conformal radiotherapy with sequential boost (3-D-CRT-seqB) for adjuvant breast radiotherapy.A total of 502 patients were randomized between 2011 and 2015 for the prospective, multicenter, phase-III-trial (NCT01322854). 5-year results of late toxicity (LENT-SOMA), overall survival, disease-free survival, distant disease-free survival, cosmesis (Harvard scale) and local control (non-inferiority margin at hazard ratio of 3.5) were analyzed after a median follow-up of 62 months.The 5-year LC rate for the IMRT-SIB arm was non-inferior to the control arm $(98.7\%$ vs. $98.3\%,$ respectively; HR 0.582, $95\%-CI:$ [0.119-2.375], p=0.4595). Furthermore, there was no significant difference in overall survival $(97.1\%$ versus $98.3\%,$ respectively; HR 1.235, $95\%-CI:$ [0.472-3.413], p=0.6697), disease-free survival $(95.8\%$ versus $96.1\%,$ respectively; HR 1.130, $95\%-CI:$ [0.487-2.679], p=0.7758) and distant disease-free survival $(97.0\%$ versus $97.8\%,$ respectively; HR 1.667, $95\%-CI:$ [0.575-5.434], p=0.3601). After 5 years, late toxicity evaluation and cosmetic assessment further showed no significant differences between treatment arms.The 5-year results of the IMRT-MC2 trial provide strong evidence, that the application of conventionally fractionated simultaneous integrated boost irradiation for breast cancer patients is both safe and effective with non-inferior local control compared to 3-D-conformal radiotherapy with sequential boost.}, keywords = {3-D-conformal radiotherapy (Other) / 5-year follow-up (Other) / Breast cancer (Other) / intensity-modulated radiotherapy (IMRT) (Other) / local control (Other) / overall survival (Other) / sequential boost irradiation (Other) / simultaneously integrated boost (SIB) (Other)}, cin = {E050 / HD01}, ddc = {610}, cid = {I:(DE-He78)E050-20160331 / I:(DE-He78)HD01-20160331}, pnm = {315 - Bildgebung und Radioonkologie (POF4-315)}, pid = {G:(DE-HGF)POF4-315}, typ = {PUB:(DE-HGF)16}, pubmed = {pmid:37244626}, doi = {10.1016/j.ijrobp.2023.05.035}, url = {https://inrepo02.dkfz.de/record/276333}, }