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https://www.readbyqxmd.com/read/29126203/a-randomized-phase-ii-study-of-everolimus-in-combination-with-chemoradiation-in-newly-diagnosed-glioblastoma-results-of-nrg-oncology-rtog-0913
#1
Prakash Chinnaiyan, Minhee Won, Patrick Y Wen, Amyn M Rojiani, Maria Werner-Wasik, Helen A Shih, Lynn S Ashby, Hsiang-Hsuan Michael Yu, Volker W Stieber, Shawn C Malone, John B Fiveash, Nimish A Mohile, Manmeet S Ahluwalia, Merideth M Wendland, Philip J Stella, Andrew Y Kee, Minesh P Mehta
Background: This Phase II study was designed to determine the efficacy of the mTOR inhibitor everolimus administered daily with conventional radiation therapy and chemotherapy in patients with newly diagnosed glioblastoma. Methods: Patients were randomized to radiation therapy with concurrent and adjuvant temozolomide with or without daily everolimus (10 mg). The primary endpoint was progression-free survival (PFS) and the secondary endpoints were overall survival (OS) and treatment-related toxicities...
November 6, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/29123013/-68-ga-psma-pet-ct-mapping-of-prostate-cancer-biochemical-recurrence-following-radical-prostatectomy-in-270-patients-with-psa-1-0ng-ml-impact-on-salvage-radiotherapy-planning
#2
Jérémie Calais, Johannes Czernin, Minsong Cao, Amar U Kishan, John V Hegde, Narek Shaverdian, Kiri A Sandler, Fang-I Chu, Chris R King, Michael L Steinberg, Isabel Rausher, Nina-Sophie Schmidt-Hegemann, Thorsten Poeppel, Philipp Hetkamp, Francesco Ceci, Ken Herrmann, Wolfgang P Fendler, Matthias Eiber, Nicholas G Nickols
Background: Target volume delineations for prostate cancer (PCa) salvage radiotherapy (SRT) after radical prostatectomy are usually drawn in the absence of visibly recurrent disease. Gallium-68 Prostate Specific Membrane Antigen Positron Emission Tomography/Computed Tomography ((68)Ga-PSMA-11 PET/CT) detects recurrent PCa with sensitivity superior to standard of care imaging at serum prostate specific antigen (PSA) values low enough to impact target volume delineations for routine SRT. OBJECTIVE: To i) map the recurrence pattern of PCa early biochemical recurrence (BCR) after radical prostatectomy with (68)Ga-PSMA-11 PET/CT in patients with serum PSA levels <1 ng/ml, ii) determine how often consensus clinical target volumes (CTV) based on the Radiation Therapy Oncology Group (RTOG) guidelines cover (68)Ga-PSMA-11 PET/CT-defined disease, and iii) assess the potential impact of (68)Ga-PSMA-11 PET/CT on SRT...
November 9, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29117865/correction-to-improved-plan-quality-with-automated-radiotherapy-planning-for-whole-brain-with-hippocampus-sparing-a-comparison-to-the-rtog-0933-trial
#3
J Krayenbuehl, M Di Martino, M Guckenberger, N Andratschke
In the original publication [1] figure legends 2 and 4 have been swapped. The original article was updated to rectify this error.
November 8, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/29108254/the-impacts-of-genetic-polymorphisms-in-genes-of-base-excision-repair-pathway-on-the-efficacy-and-acute-toxicities-of-chemo-radiotherapy-in-patients-with-nasopharyngeal-carcinoma
#4
Jing Wang, Chengxian Guo, Xiaochang Gong, Fan Ao, Yuling Huang, Lihua Huang, Yiqiang Tang, Chunling Jiang, Xiaoxue Xie, Qing Dong, Min Huang, Jingao Li
Purpose: To explore whether polymorphisms in base excision repair (BER) pathway genes are predictors of (chemo)radiotherapy outcome in patients with nasopharyngeal carcinoma (NPC). Methods: We genotyped five potentially functional single nucleotide polymorphisms (SNPs) of three genes in the BER pathway in 174 NPC patients who were treated with (chemo)radiotherapy. Sequenom MassArray was used for SNPs analysis. The efficacy at the end of radiotherapy and at 3 months after radiotherapy was evaluated by Response Evaluation Criteria in Solid Tumors (RECIST)...
October 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29103755/a-failure-type-specific-risk-prediction-tool-for-selection-of-head-and-neck-cancer-patients-for-experimental-treatments
#5
Katrin Håkansson, Jacob H Rasmussen, Gregers B Rasmussen, Jeppe Friborg, Thomas A Gerds, Barbara Malene Fischer, Flemming L Andersen, Søren M Bentzen, Lena Specht, Ivan R Vogelius
OBJECTIVES: The objective of this work was to develop a tool for decision support, providing simultaneous predictions of the risk of loco-regional failure (LRF) and distant metastasis (DM) after definitive treatment for head-and-neck squamous cell carcinoma (HNSCC). MATERIALS AND METHODS: Retrospective data for 560HNSCC patients were used to generate a multi-endpoint model, combining three cause-specific Cox models (LRF, DM and death with no evidence of disease (death NED))...
November 2017: Oral Oncology
https://www.readbyqxmd.com/read/29102648/investigating-the-effect-of-reirradiation-or-systemic-therapy-in-patients-with-glioblastoma-after-tumor-progression-a-secondary-analysis-of-nrg-oncology-radiation-therapy-oncology-group-trial-0525
#6
Wenyin Shi, Molly Scannell Bryan, Mark R Gilbert, Minesh P Mehta, Deborah T Blumenthal, Paul D Brown, Egils Valeinis, Kirsten Hopkins, Luis Souhami, David W Andrews, Tzahala Tzuk-Shina, Steve P Howard, Emad F Youssef, Nathalie Lessard, James J Dignam, Maria Werner-Wasik
PURPOSE: To determine the impact on overall survival with different salvage therapies, including no treatment, reirradiation, systemic therapy, or radiation and systemic therapy, in participants of a phase 3 clinical trial evaluating dose-dense versus standard-dose temozolomide for patients with newly diagnosed glioblastoma. METHODS AND MATERIALS: This analysis of patients from Trial RTOG 0525 investigated the effect of reirradiation or systemic treatment after tumor progression...
September 4, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29102264/radiation-toxicity-in-patients-with-collagen-vascular-disease-and-intrathoracic-malignancy-treated-with-modern-radiation-techniques
#7
Kevin Diao, Yu-Hui Chen, Paul J Catalano, Stephanie Lee, Nastaran Milani, Joseph H Killoran, Elizabeth H Baldini, Aileen B Chen, David E Kozono, Raymond H Mak
BACKGROUND AND PURPOSE: There is concern that patients with collagen vascular disease (CVD) are at higher risk of developing radiation toxicity. We analyzed radiation toxicities in patients with intrathoracic malignancy and CVD treated using modern radiotherapy. MATERIALS AND METHODS: This single-institution retrospective study included 31 patients with CVD and 825 patients without CVD treated from 1998 to 2014. Radiation esophagitis (RE) and radiation pneumonitis (RP) were scored by RTOG scales...
October 25, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29096619/incorporating-18-fdg-pet-defined-pelvic-active-bone-marrow-in-the-automatic-treatment-planning-process-of-anal-cancer-patients-undergoing-chemo-radiation
#8
Pierfrancesco Franco, Christian Fiandra, Francesca Arcadipane, Elisabetta Trino, Francesca Romana Giglioli, Riccardo Ragona, Umberto Ricardi
BACKGROUND: To investigate whether the incorporation of (18)FDG-PET into the automatic treatment planning process may be able to decrease the dose to active bone marrow (BM) for locally advanced anal cancer patients undergoing concurrent chemo-radiation (CHT-RT). METHODS: Ten patients with locally advanced anal cancer were selected. Bone marrow within the pelvis was outlined as the whole outer contour of pelvic bones or employing (18)FDG-PET to identify active BM within osseous structures...
November 2, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29072852/the-effect-of-mepitel-film-on-acute-radiation-induced-skin-reactions-in-head-and-neck-cancer-patients-a-feasibility-study
#9
Hayley Wooding, Jing Yan, Ling Yuan, Te-Yu Chyou, Shanbao Gao, Iain Ward, Patries M Herst
OBJECTIVE: Mepitel Film significantly decreases acute radiation-induced skin reactions in breast cancer patients. Here we investigated the feasibility of using Mepitel Film in head and neck cancer patients (ACTRN12614000932662). METHODS: Out of a total of 36 head and neck cancer patients from New Zealand (NZ) (n=24) and China (n=12) recruited between June 2015 and December 2016, 33 patients complied with protocol. Of these, 11 NZ patients followed a management protocol; 11 NZ patients and 11 Chinese patients followed a prophylactic protocol...
October 26, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29072851/cervical-cancer-treated-with-reduced-volume-intensity-modulated-radiation-therapy-base-on-sedlis-criteria-nccn-vs-rtog
#10
Hua-Chun Luo, Gui-Shan Lin, Shao-Guang Liao, Feng-Mei Wang, Hui-Hua Cheng, Jing Feng, Qin Yin, Qun-Hua Chen, Jin-Feng Zhu, Jian-Feng Xu, Dian Wang, Zhi-Chao Fu
OBJECTIVE: This study aimed to evaluate the clinical efficacy of different target volumes in pelvic radiotherapy in postoperative treatment of cervical cancer based on the Sedlis criteria. METHODS: Patients who admitted to our department for postoperative radiotherapy of cervical cancer from December 2001 to December 2011 and met the Sedlis criteria were retrospectively analyzed. The incidences of acute and late radiation injuries, and overall, disease-free, and tumor-specific survival with reduced-volume pelvic and whole-pelvis radiotherapy were evaluated and compared...
October 26, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29064573/effects-of-magnetic-field-orientation-and-strength-on-the-treatment-planning-of-non-small-cell-lung-cancer
#11
Schrenk Oliver, Spindeldreier Claudia Katharina, Burigo Lucas Norberto, Hoerner-Rieber Juliane, Pfaffenberger Asja
PURPOSE: Magnetic resonance image-guided radiotherapy (MRgRT) has the potential to increase the accuracy of radiation treatment delivery. Several research groups have developed hybrid MRgRT devices differing by radiation source used, magnetic field orientation and strength. In this work, we investigate the impact of different magnetic field orientations and strengths on the treatment planning of non-small cell lung cancer patients (NSCLC). METHODS: A framework using the in-house developed treatment planning system matRad and the EGSnrc Monte Carlo code system was introduced to perform Monte Carlo based treatment planning in the presence of a magnetic field...
October 24, 2017: Medical Physics
https://www.readbyqxmd.com/read/29053185/expression-of-the-dna-repair-gene-mlh1-correlates-with-survival-in-patients-who-have-resected-pancreatic-cancer-and-have-received-adjuvant-chemoradiation-nrg-oncology-rtog-study-9704
#12
Yaacov R Lawrence, Jennifer Moughan, Anthony M Magliocco, Alexander C Klimowicz, William F Regine, Rex B Mowat, Thomas A DiPetrillo, William Small, Jeffry P Simko, Talia Golan, Kathryn A Winter, Chandan Guha, Christopher H Crane, Adam P Dicker
BACKGROUND: The majority of patients with pancreatic cancer who undergo curative resection experience rapid disease recurrence. In previous small studies, high expression of the mismatch-repair protein mutL protein homolog 1 (MLH1) in pancreatic cancers was associated with better outcomes. The objective of this study was to validate the association between MLH1 expression and survival in patients who underwent resection of pancreatic cancer and received adjuvant chemoradiation. METHODS: Samples were obtained from the NRG Oncology Radiation Therapy Oncology Group 9704 prospective, randomized trial (clinicaltrials...
October 20, 2017: Cancer
https://www.readbyqxmd.com/read/29051600/prediction-of-treatment-response-for-combined-chemo-and-radiation-therapy-for-non-small-cell-lung-cancer-patients-using-a-bio-mathematical-model
#13
Changran Geng, Harald Paganetti, Clemens Grassberger
The goal of this work was to develop a mathematical model to predict Kaplan-Meier survival curves for chemotherapy combined with radiation in Non-Small Cell Lung Cancer patients for use in clinical trial design. The Gompertz model was used to describe tumor growth, radiation effect was simulated by the linear-quadratic model with an α/β-ratio of 10, and chemotherapy effect was based on the log-cell kill model. To account for repopulation during treatment, we considered two independent methods: 1) kickoff-repopulation using exponential growth with a decreased volume doubling time, or 2) Gompertz-repopulation using the gradually accelerating growth rate with tumor shrinkage...
October 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29037023/simultaneous-integrated-boost-intensity-modulated-radiotherapy-versus-3-dimensional-conformal-radiotherapy-in-preoperative-concurrent-chemoradiotherapy-for-locally-advanced-rectal-cancer
#14
Bong Kyung Bae, Min Kyu Kang, Jae-Chul Kim, Mi Young Kim, Gyu-Seog Choi, Jong Gwang Kim, Byung Woog Kang, Hye Jin Kim, Soo Yeun Park
PURPOSE: To evaluate the feasibility of simultaneous integrated boost intensity-modulated radiotherapy (SIB-IMRT) for preoperative concurrent chemoradiotherapy (PCRT) in locally advanced rectal cancer (LARC), by comparing with 3-dimensional conformal radiotherapy (3D-CRT). MATERIALS AND METHODS: Patients who were treated with PCRT for LARC from 2015 January to 2016 December were retrospectively enrolled. Total doses of 45 Gy to 50.4 Gy with 3D-CRT or SIB-IMRT were administered concomitantly with 5-fluorouracil plus leucovorin or capecitabine...
September 2017: Radiation Oncology Journal
https://www.readbyqxmd.com/read/29031036/-the-role-of-chemotherapy-in-the-treatment-of-low-grade-gliomas
#15
R Lakomý, T Kazda, A Poprach, P Pospíšil, R Jančálek, P Šlampa
BACKGROUND: The standard postsurgical options for low-grade gliomas include watchful waiting or radiotherapy depending on the risk factors for recurrence. The use of chemotherapy for the treatment of this disease is generally controversial, although the recently published results of the first of two large randomized phase III clinical trials (RTOG 9802 a EORTC 22033-26033), focusing on the evaluation of chemotherapy for the upfront treatment of newly diagnosed low-grade gliomas, are reassuring in this respect...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/29031035/-controversy-in-the-postoperative-treatment-of-low-grade-gliomas
#16
T Kazda, R Lakomý, A Poprach, P Pospíšil, R Jančálek, P Šlampa
BACKGROUND: The optimal treatment for low-grade gliomas remains controversial. Neurosurgery, radiotherapy, and chemotherapy are the main treatment options. Despite advances in oncology, there are still a lot of uncertainties, and the optimal sequences, combinations, and timings of these procedures have not yet been optimized. It is still unclear whether temozolomide can replace effective, but toxic PCV chemotherapy (procarbazine, lomustine, vincristine) and whether temozolomide can be used upfront alone instead of radiotherapy alone...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28993060/routine-bladder-cancer-treatment-dictates-divergence-from-trial-derived-regimens-results-of-treatment-at-44-radiotherapy-centers
#17
Anesa Ahamad, Alvaro Martinez, Sharon Salenius, Rudi Ross, Jason Efstathiou, Eduardo Fernandez
PURPOSE: To assess characteristics and outcome of patients treated with radiotherapy for muscle-invasive bladder cancer at 44 community-based radiotherapy centers and compare these to those on clinical trials. MATERIALS AND METHODS: We reviewed 155 patients who had been treated from 2010 to 2014. Overall survival and progression-free survival were estimated using the Kaplan-Meier method. Results were compared to a pooled analysis of 6 Radiation Therapy Oncology Group (RTOG) protocols...
October 6, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28986987/monte-carlo-simulations-of-a-kilovoltage-external-beam-radiotherapy-system-on-phantoms-and-breast-patients
#18
Dylan Y Breitkreutz, Michael D Weil, Sergei Zavgorodni, Magdalena Bazalova-Carter
PURPOSE: To determine the most suitable lesion size and depth for radiotherapy treatments with a prototype kilovoltage x-ray arc therapy (KVAT) system through Monte Carlo simulations of the dose delivered to lesion, dose homogeneity and lesion-to-skin ratio. METHODS: Monte Carlo simulations were used to calculate dose distributions generated by a novel low-energy kilovoltage x-ray system to a variety of clinically relevant lesion sizes and depths in phantoms and for hypothetical partial breast irradiations of patients in supine and prone positions...
October 7, 2017: Medical Physics
https://www.readbyqxmd.com/read/28984517/intermediate-risk-meningioma-initial-outcomes-from-nrg-oncology-rtog-0539
#19
Leland Rogers, Peixin Zhang, Michael A Vogelbaum, Arie Perry, Lynn S Ashby, Jignesh M Modi, Anthony M Alleman, James Galvin, David Brachman, Joseph M Jenrette, John De Groot, Joseph A Bovi, Maria Werner-Wasik, Jonathan P S Knisely, Minesh P Mehta
OBJECTIVE This is the first clinical outcomes report of NRG Oncology RTOG 0539, detailing the primary endpoint, 3-year progression-free survival (PFS), compared with a predefined historical control for intermediate-risk meningioma, and secondarily evaluating overall survival (OS), local failure, and prospectively scored adverse events (AEs). METHODS NRG Oncology RTOG 0539 was a Phase II clinical trial allocating meningioma patients to 1 of 3 prognostic groups and management strategies according to WHO grade, recurrence status, and resection extent...
October 6, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28983442/minimal-rectal-toxicity-in-the-setting-of-comorbid-crohn-s-disease-following-prostate-cancer-radiotherapy-with-a-hydrogel-rectal-spacer
#20
Raj Singh, Philip S Jackson, Mollie Blake, James Cutlip, Sanjeev Sharma
We present one of the first cases of a prostate cancer (PCa) patient with inflammatory bowel disease (IBD) treated with intensity-modulated radiotherapy (IMRT) and a hydrogel rectal spacer. A 73-year-old male with a past medical history significant for Crohn's disease (CD) and the recent diagnosis of T1cN0M0 high-risk PCa was referred for definitive radiotherapy. Given the patient's history of CD and the possible increased risk of gastrointestinal (GI) toxicity and disease exacerbation, prior to IMRT, a hydrogel spacer was placed between the prostate and the anterior rectal wall to further minimize irradiation to the rectum...
August 1, 2017: Curēus
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