Time filter

Source Type

Crows Nest, Australia

Cormie P.,Edith Cowan University | Galvao D.A.,Edith Cowan University | Spry N.,Edith Cowan University | Spry N.,University of Western Australia | And 9 more authors.
BJU International | Year: 2015

Objective: To determine if supervised exercise minimises treatment toxicity in patients with prostate cancer initiating androgen-deprivation therapy (ADT). This is the first study to date that has investigated the potential role of exercise in preventing ADT toxicity rather than recovering from established toxicities. Patients and Methods: Sixty-three men scheduled to receive ADT were randomly assigned to a 3-month supervised exercise programme involving aerobic and resistance exercise sessions commenced within 10 days of their first ADT injection (32 men) or usual care (31 men). The primary outcome was body composition (lean and fat mass). Other study outcomes included bone mineral density, physical function, blood biomarkers of chronic disease risk and bone turnover, general and prostate cancer-specific quality of life, fatigue and psychological distress. Outcomes were compared between groups using analysis of covariance adjusted for baseline values. Results: Compared to usual care, a 3-month exercise programme preserved appendicular lean mass (P = 0.019) and prevented gains in whole body fat mass, trunk fat mass and percentage fat with group differences of -1.4 kg (P = 0.001), -0.9 kg (P = 0.008) and -1.3% (P < 0.001), respectively. Significant between-group differences were also seen favouring the exercise group for cardiovascular fitness (peak oxygen consumption 1.1 mL/kg/min, P = 0.004), muscular strength (4.0-25.9 kg, P ≤ 0.026), lower body function (-1.1 s, P < 0.001), total cholesterol: high-density lipoprotein-cholesterol ratio (-0.52, P = 0.028), sexual function (15.2, P = 0.028), fatigue (3.1, P = 0.042), psychological distress (-2.2, P = 0.045), social functioning (3.8, P = 0.015) and mental health (3.6-3.8, P ≤ 0.022). There were no significant group differences for any other outcomes. Conclusion: Commencing a supervised exercise programme involving aerobic and resistance exercise when initiating ADT significantly reduced treatment toxicity, while improving social functioning and mental health. Concurrent prescription of supervised exercise when initiating ADT is therefore advised to minimise morbidity associated with severe hypogonadism. © 2014 The Authors. BJU International © 2014 BJU International.

Pasquier D.,Center Oscar Lambret | Barney B.,Mayo Medical School | Sundar S.,University of Nottingham | Poortmans P.,Radboud University Nijmegen | And 12 more authors.
International Journal of Radiation Oncology Biology Physics | Year: 2015

Purpose Small cell carcinomas of the bladder (SCCB) account for fewer than 1% of all urinary bladder tumors. There is no consensus regarding the optimal treatment for SCCB. Methods and Materials Fifteen academic Rare Cancer Network medical centers contributed SCCB cases. The eligibility criteria were as follows: pure or mixed SCC; local, locoregional, and metastatic stages; and age ≥18 years. The overall survival (OS) and disease-free survival (DFS) were calculated from the date of diagnosis according to the Kaplan-Meier method. The log-rank and Wilcoxon tests were used to analyze survival as functions of clinical and therapeutic factors. Results The study included 107 patients (mean [±standard deviation, SD] age, 69.6 [±10.6] years; mean follow-up time, 4.4 years) with primary bladder SCC, with 66% of these patients having pure SCC. Seventy-two percent and 12% of the patients presented with T2-4N0M0 and T2-4N1-3M0 stages, respectively, and 16% presented with synchronous metastases. The most frequent curative treatments were radical surgery and chemotherapy, sequential chemotherapy and radiation therapy, and radical surgery alone. The median (interquartile range, IQR) OS and DFS times were 12.9 months (IQR, 7-32 months) and 9 months (IQR, 5-23 months), respectively. The metastatic, T2-4N0M0, and T2-4N1-3M0 groups differed significantly (P=.001) in terms of median OS and DFS. In a multivariate analysis, impaired creatinine clearance (OS and DFS), clinical stage (OS and DFS), a Karnofsky performance status <80 (OS), and pure SCC histology (OS) were independent and significant adverse prognostic factors. In the patients with nonmetastatic disease, the type of treatment (ie radical surgery with or without adjuvant chemotherapy vs conservative treatment) did not significantly influence OS or DFS (P=.7). Conclusions The prognosis for SCCB remains poor. The finding that radical cystectomy did not influence DFS or OS in the patients with nonmetastatic disease suggests that conservative treatment is appropriate in this situation. © 2015 Elsevier Inc. All rights reserved.

Emery J.,University of Melbourne | Emery J.,University of Western Australia | Doorey J.,University of Western Australia | Jefford M.,Peter MacCallum Cancer Center | And 14 more authors.
BMJ Open | Year: 2014

Introduction: Men with prostate cancer require long-term follow-up to monitor disease progression and manage common adverse physical and psychosocial consequences of treatment. There is growing recognition of the potential role of primary care in cancer follow-up. This paper describes the protocol for a phase II multisite randomised controlled trial of a novel model of shared care for the follow-up of men after completing treatment for low-moderate risk prostate cancer. Methods and analysis: The intervention is a shared care model of follow-up visits in the first 12 months after completing treatment for prostate cancer with the following specific components: a survivorship care plan, general practitioner (GP) management guidelines, register and recall systems, screening for distress and unmet needs and patient information resources. Eligible men will have completed surgery and/or radiotherapy for low-moderate risk prostate cancer within the previous 8 weeks and have a GP who consents to participate. Ninety men will be randomised to the intervention or current hospital follow-up care. Study outcome measures will be collected at baseline, 3, 6 and 12 months and include anxiety, depression, unmet needs, prostate cancer-specific quality of life and satisfaction with care. Clinical processes and healthcare resource usage will also be measured. The principal emphasis of the analysis will be on obtaining estimates of the treatment effect size and assessing feasibility in order to inform the design of a subsequent phase III trial. Ethics and dissemination: Ethics approval has been granted by the University of Western Australia and from all hospital recruitment sites in Western Australia and Victoria. Results: of this phase II trial will be reported in peer-reviewed publications and in conference presentations. Trial Registration: Australian New Zealand Clinical Trial Registry ACTRN12610000938000.

Ung N.M.,University of Western Australia | Ung N.M.,University of Malaya | Wee L.,University of Western Australia | Wee L.,Elekta Ltd | And 5 more authors.
Journal of Applied Clinical Medical Physics | Year: 2013

This study evaluated the agreement of fiducial marker localization between two modalities - an electronic portal imaging device (EPID) and cone-beam computed tomography (CBCT) - using a low-dose, half-rotation scanning protocol. Twenty-five prostate cancer patients with implanted fiducial markers were enrolled. Before each daily treatment, EPID and half-rotation CBCT images were acquired. Translational shifts were computed for each modality and two marker-matching algorithms, seed-chamfer and grey-value, were performed for each set of CBCT images. The localization offsets, and systematic and random errors from both modalities were computed. Localization performances for both modalities were compared using Bland-Altman limits of agreement (LoA) analysis, Deming regression analysis, and Cohen's kappa inter-rater analysis. The differences in the systematic and random errors between the modalities were within 0.2 mm in all directions. The LoA analysis revealed a 95% agreement limit of the modalities of 2 to 3.5 mm in any given translational direction. Deming regression analysis demonstrated that constant biases existed in the shifts computed by the modalities in the superior-inferior (SI) direction, but no significant proportional biases were identified in any direction. Cohen's kappa analysis showed good agreement between the modalities in prescribing translational corrections of the couch at 3 and 5 mm action levels. Images obtained from EPID and half-rotation CBCT showed acceptable agreement for registration of fiducial markers. The seed-chamfer algorithm for tracking of fiducial markers in CBCT datasets yielded better agreement than the grey-value matching algorithm with EPID-based registration.

Hesselberg G.,Prince of Wales Hospital | Hesselberg G.,University of New South Wales | Fogarty G.,Genesis Cancer Care | Fogarty G.,The Surgical Center | And 3 more authors.
BioMed Research International | Year: 2015

Background. Treatment of pelvic lymph nodes (PLNs) in higher risk prostate carcinoma is controversial. The primary focus of the study was to evaluate the early toxicity profile for this cohort of patients treated with Volumetric Modulated Arc Therapy (VMAT). Methods. Patient, tumour, and treatment characteristics of those who received VMAT from May 2010 to December 2012 were analysed. A simplified contouring process of the PLNs to the aortic bifurcation was developed based on consensus guidelines. Acute and late genitourinary (GU) and gastrointestinal (GI) toxicities were documented according to the Radiation Therapy Oncology Group (RTOG) Version 2 Guidelines. Successive Prostate Specific Antigen (PSA) values after treatment were measured on average 3 months apart. Results. 113 patients were treated between May 2010 to December 2012 with a median follow-up of 14 months. No patients experienced acute grade 3 or 4 GU and GI toxicity. Only 1 patient experienced a late grade 3 GU complication. No late grade 4 GU or GI events have yet occurred. Conclusions. This study reviews the first Australian experience of VMAT in the treatment of pelvic lymph nodes in prostate cancer, specifically to the level of the aortic bifurcation. It demonstrates a favorable acute toxicity profile whilst treating large PLN volumes with optimal dose coverage. © 2015 Gina Hesselberg et al.

Discover hidden collaborations