Browsing ICR Divisions by author "Dearnaley, David"
Now showing items 41-60 of 101
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Impact of Hypofractionated Radiotherapy on Patient-reported Outcomes in Prostate Cancer: Results up to 5 yr in the CHHiP trial (CRUK/06/016).
Staffurth, JN; Haviland, JS; Wilkins, A; Syndikus, I; Khoo, V; et al. (ELSEVIER, 2021-12-15)BACKGROUND: Moderate hypofractionation is the recommended standard of care for localised prostate cancer following the results of trials including Conventional or Hypofractionated High Dose Intensity Modulated Radiotherapy ... -
Impact of Pelvic Radiation Therapy for Prostate Cancer on Global Metabolic Profiles and Microbiota-Driven Gastrointestinal Late Side Effects: A Longitudinal Observational Study.
Ferreira, MR; Sands, CJ; Li, JV; Andreyev, JN; Chekmeneva, E; et al. (ELSEVIER SCIENCE INC, 2021-12-01)PURPOSE: Radiation therapy to the prostate and pelvic lymph nodes (PLNRT) is part of the curative treatment of high-risk prostate cancer. Yet, the broader influence of radiation therapy on patient physiology is poorly ... -
Increased Dose to Organs in Urinary Tract Associates With Measures of Genitourinary Toxicity in Pooled Voxel-Based Analysis of 3 Randomized Phase III Trials.
Marcello, M; Denham, JW; Kennedy, A; Haworth, A; Steigler, A; et al. (FRONTIERS MEDIA SA, 2020-07-22)Purpose: Dose information from organ sub-regions has been shown to be more predictive of genitourinary toxicity than whole organ dose volume histogram information. This study aimed to identify anatomically-localized regions ... -
Individual patient data meta-analysis shows a significant association between the ATM rs1801516 SNP and toxicity after radiotherapy in 5456 breast and prostate cancer patients.
Andreassen, CN; Rosenstein, BS; Kerns, SL; Ostrer, H; De Ruysscher, D; et al. (ELSEVIER IRELAND LTD, 2016-12-01)PURPOSE: Several small studies have indicated that the ATM rs1801516 SNP is associated with risk of normal tissue toxicity after radiotherapy. However, the findings have not been consistent. In order to test this SNP in a ... -
Interim Results from the IMPACT Study: Evidence for Prostate-specific Antigen Screening in BRCA2 Mutation Carriers.
Page, EC; Bancroft, EK; Brook, MN; Assel, M; Hassan Al Battat, M; et al. (ELSEVIER, 2019-09-18)BACKGROUND: Mutations in BRCA2 cause a higher risk of early-onset aggressive prostate cancer (PrCa). The IMPACT study is evaluating targeted PrCa screening using prostate-specific-antigen (PSA) in men with germline BRCA1/2 ... -
International Society of Urological Pathology (ISUP) Gleason Grade Groups stratify outcomes in the CHHiP Phase 3 prostate radiotherapy trial.
Dearnaley, D; Griffin, CL; Silva, P; Wilkins, A; Stuttle, C; et al. (WILEY, 2023-07-18)OBJECTIVES: To compare the results of Gleason Grade Group (GGG) classification following central pathology review with previous local pathology assessment, and to examine the difference between using overall and worst GGG ... -
Interobserver variability in target volume delineation for CT/MRI simulation and MRI-guided adaptive radiotherapy in rectal cancer.
White, I; Hunt, A; Bird, T; Settatree, S; Soliman, H; et al. (BRITISH INST RADIOLOGY, 2021-12-01)OBJECTIVES: Quantify target volume delineation uncertainty for CT/MRI simulation and MRI-guided adaptive radiotherapy in rectal cancer. Define optimal imaging sequences for target delineation. METHODS: Six experienced ... -
Iterative framework for the joint segmentation and CT synthesis of MR images: application to MRI-only radiotherapy treatment planning.
Burgos, N; Guerreiro, F; McClelland, J; Presles, B; Modat, M; et al. (IOP PUBLISHING LTD, 2017-06-07)To tackle the problem of magnetic resonance imaging (MRI)-only radiotherapy treatment planning (RTP), we propose a multi-atlas information propagation scheme that jointly segments organs and generates pseudo x-ray computed ... -
Ki67 Is an Independent Predictor of Recurrence in the Largest Randomized Trial of 3 Radiation Fractionation Schedules in Localized Prostate Cancer.
Wilkins, AC; Gusterson, B; Szijgyarto, Z; Haviland, J; Griffin, C; et al. (ELSEVIER SCIENCE INC, 2018-06-01)PURPOSE: To assess whether the cellular proliferation marker Ki67 provides prognostic information and predicts response to radiation therapy fractionation in patients with localized prostate tumors participating in a ... -
Large-scale meta-genome-wide association study reveals common genetic factors linked to radiation-induced acute toxicities across cancer types.
Naderi, E; Aguado-Barrera, ME; Schack, LMH; Dorling, L; Rattay, T; et al. (OXFORD UNIV PRESS, 2023-10-31)BACKGROUND: This study was designed to identify common genetic susceptibility and shared genetic variants associated with acute radiation-induced toxicity across 4 cancer types (prostate, head and neck, breast, and lung). ... -
Linkage of the CHHiP randomised controlled trial with primary care data: a study investigating ways of supplementing cancer trials and improving evidence-based practice.
Lemanska, A; Byford, RC; Cruickshank, C; Dearnaley, DP; Ferreira, F; et al. (BMC, 2020-07-25)BACKGROUND: Randomised controlled trials (RCTs) are the gold standard for evidence-based practice. However, RCTs can have limitations. For example, translation of findings into practice can be limited by design features, ... -
Linking CHHiP prostate cancer RCT with GP records: A study proposal to investigate the effect of co-morbidities and medications on long-term symptoms and radiotherapy-related toxicity.
Lemanska, A; Byford, RC; Correa, A; Cruickshank, C; Dearnaley, DP; et al. (Elsevier BV, 2017-06-27)BACKGROUND: Patients receiving cancer treatment often have one or more co-morbid conditions that are treated pharmacologically. Co-morbidities are recorded in clinical trials usually only at baseline. However, co-morbidities ... -
Local Failure Events in Prostate Cancer Treated with Radiotherapy: A Pooled Analysis of 18 Randomized Trials from the Meta-analysis of Randomized Trials in Cancer of the Prostate Consortium (LEVIATHAN).
Ma, TM; Chu, F-I; Sandler, H; Feng, FY; Efstathiou, JA; et al. (ELSEVIER, 2022-10-14)CONTEXT: The prognostic importance of local failure after definitive radiotherapy (RT) in National Comprehensive Cancer Network intermediate- and high-risk prostate cancer (PCa) patients remains unclear. OBJECTIVE: To ... -
Magnitude of observer error using cone beam CT for prostate interfraction motion estimation: effect of reducing scan length or increasing exposure.
McNair, HA; Harris, EJ; Hansen, VN; Thomas, K; South, C; et al. (BRITISH INST RADIOLOGY, 2015-10-01)OBJECTIVE: Cone beam CT (CBCT) enables soft-tissue registration to planning CT for position verification in radiotherapy. The aim of this study was to determine the interobserver error (IOE) in prostate position verification ... -
Meta-analysis of Genome Wide Association Studies Identifies Genetic Markers of Late Toxicity Following Radiotherapy for Prostate Cancer.
Kerns, SL; Dorling, L; Fachal, L; Bentzen, S; Pharoah, PDP; et al. (ELSEVIER, 2016-08-01)Nearly 50% of cancer patients undergo radiotherapy. Late radiotherapy toxicity affects quality-of-life in long-term cancer survivors and risk of side-effects in a minority limits doses prescribed to the majority of patients. ... -
Microbiota- and Radiotherapy-Induced Gastrointestinal Side-Effects (MARS) Study: A Large Pilot Study of the Microbiome in Acute and Late-Radiation Enteropathy.
Reis Ferreira, M; Andreyev, HJN; Mohammed, K; Truelove, L; Gowan, SM; et al. (AMER ASSOC CANCER RESEARCH, 2019-11-01)PURPOSE: Radiotherapy is important in managing pelvic cancers. However, radiation enteropathy may occur and can be dose limiting. The gut microbiota may contribute to the pathogenesis of radiation enteropathy. We hypothesized ... -
Multi-candidate immunohistochemical markers to assess radiation response and prognosis in prostate cancer: results from the CHHiP trial of radiotherapy fractionation.
Wilkins, A; Gusterson, B; Tovey, H; Griffin, C; Stuttle, C; et al. (ELSEVIER, 2023-02-01)BACKGROUND: Protein markers of cellular proliferation, hypoxia, apoptosis, cell cycle checkpoints, growth factor signalling and inflammation in localised prostate tumours have previously shown prognostic ability. A ... -
Neutrophil to Lymphocyte Ratio in Castration-Resistant Prostate Cancer Patients Treated With Daily Oral Corticosteroids.
Mehra, N; Sharp, A; Lorente, D; Dolling, D; Sumanasuriya, S; et al. (CIG MEDIA GROUP, LP, 2017-12-01)BACKGROUND: The neutrophil to lymphocyte ratio (NLR) has been shown to be highly prognostic across many tumor types, and predictive of treatment outcome in advanced prostate cancer, and has been postulated to be an indirect ... -
Nine-year Follow-up for a Study of Diffusion-weighted Magnetic Resonance Imaging in a Prospective Prostate Cancer Active Surveillance Cohort.
Henderson, DR; de Souza, NM; Thomas, K; Riches, SF; Morgan, VA; et al. (ELSEVIER SCIENCE BV, 2016-06-01)BACKGROUND: In active surveillance (AS) for prostate cancer there are few data on long-term outcomes associated with novel imaging markers. OBJECTIVE: To determine long-term outcomes with respect to the apparent diffusion ... -
Nonrandomized Comparison of Efficacy and Side Effects of Bicalutamide Compared With Luteinizing Hormone-Releasing Hormone (LHRH) Analogs in Combination With Radiation Therapy in the CHHiP Trial.
Tree, A; Griffin, C; Syndikus, I; Birtle, A; Choudhury, A; et al. (ELSEVIER SCIENCE INC, 2022-06-01)PURPOSE: CHHiP is a randomized trial evaluating moderately hypofractionated radiation therapy for treatment of localized prostate cancer. Of all participants, 97% of them had concurrent short-course hormone therapy (HT), ...