163 results match your criteria: "Princess Margaret Hospital University Health Network[Affiliation]"

Aim: To evaluate the efficacy and safety of bevacizumab in the adjuvant cancer therapy setting within different subset of patients.

Methods & Design/ Results: PubMed, EMBASE, Cochrane and Clinical trials.gov databases were searched for English language studies of randomized controlled trials comparing bevacizumab and adjuvant therapy with adjuvant therapy alone published from January 1966 to 7th of May 2014.

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Effectiveness of the risk of malignancy index and the risk of ovarian malignancy algorithm in a cohort of women with ovarian cancer: does histotype and stage matter?

Int J Gynecol Cancer

June 2015

*Department of Obstetrics and Gynecology, University of Toronto, Toronto, Ontario, Canada; †Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, McMaster University, Hamilton, Ontario, Canada; ‡Division of Gynecologic Oncology, Departments of Obstetrics and Gynecology and §Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada; ∥Princess Margaret Hospital/University Health Network, Toronto, Ontario, Canada; ¶Biostatistics Department, Princess Margaret Hospital, Toronto, Ontario, Canada; #Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, Ontario, Canada; and **Department of Clinical Biochemistry, University Health Network, Toronto, Ontario, Canada.

Objective: To examine the performance of the Risk of Malignancy Index (RMI) and Risk of Ovarian Malignancy Algorithm (ROMA) by histologic subtype and stage of disease in a cohort of women with ovarian cancer.

Methods: All patients with confirmed ovarian cancer at the Princess Margaret Hospital between February 2011 and January 2013 were eligible for study inclusion. Preoperative cancer antigen 125, human epididymis protein 4, and ultrasound findings were reviewed, and the sensitivity and false-negative rates of the RMI and ROMA were determined by stage of disease and tumor histology.

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This study aimed to investigate whether molecular analysis can be used to refine risk assessment, direct adjuvant therapy, and identify actionable alterations in high-risk endometrial cancer. TransPORTEC, an international consortium related to the PORTEC3 trial, was established for translational research in high-risk endometrial cancer. In this explorative study, routine molecular analyses were used to detect prognostic subgroups: p53 immunohistochemistry, microsatellite instability and POLE proofreading mutation.

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Symptomatic toxicities experienced during anticancer treatment: agreement between patient and physician reporting in three randomized trials.

J Clin Oncol

March 2015

Massimo Di Maio, Maria Carmela Piccirillo, Gennaro Daniele, Francesco Nuzzo, Andrea de Matteis, Jane Bryce, Alessandro Morabito, Gaetano Rocco, and Francesco Perrone, Istituto Nazionale Tumori-Fondazione "G. Pascale" Istituto di Ricovero e Cura a Carattere Scientifico; Ciro Gallo, Fortunato Ciardiello, and Simona Signoriello, Second University; Sabino De Placido, Federico II University, Napoli; Cesare Gridelli, S.G. Moscati Hospital, Avellino; Vittorio Gebbia, Istituto La Maddalena, Palermo; Anna Ceribelli, Regina Elena National Cancer Institute, Roma; Adolfo G. Favaretto, Istituto Oncologico Veneto, Padova, Italy; Natasha B. Leighl and Ronald Feld, Princess Margaret Hospital/University Health Network, Toronto; and Charles Butts, Cross Cancer Institute, Edmonton, Alberta, Canada.

Purpose: Information about symptomatic toxicities of anticancer treatments is not based on direct report by patients, but rather on reports by clinicians in trials. Given the potential for under-reporting, our aim was to compare reporting by patients and physicians of six toxicities (anorexia, nausea, vomiting, constipation, diarrhea, and hair loss) within three randomized trials.

Patients And Methods: In one trial, elderly patients with breast cancer received adjuvant chemotherapy; in two trials, patients with advanced non-small-cell lung cancer received first-line treatment.

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Performance characteristics of a brief Family History Questionnaire to screen for Lynch syndrome in women with newly diagnosed endometrial cancer.

Gynecol Oncol

February 2015

Division of Gynecologic Oncology, Princess Margaret Hospital/University Health Network, 610 University Ave., Toronto, Ontario M5G 2M9, Canada; Department of Obstetrics and Gynecology, University of Toronto, 27 King's College Circle, Toronto, Ontario M5S 2J7, Canada. Electronic address:

Objective: The brief Family History Questionnaire (bFHQ) was developed to identify endometrial cancer patients whose family histories suggest Lynch syndrome (LS). We compared the bFHQ, extended Family History Questionnaire (eFHQ) and dictated medical records (DMRs) to determine which family history screening strategy is superior in identifying LS in unselected women with newly diagnosed endometrial cancer that have undergone universal germline testing.

Methods: Prospective cohort study recruited women with newly diagnosed endometrial cancer to evaluate screening strategies to identify LS.

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Background: Immunohistochemistry (IHC) for mismatch repair protein expression, microsatellite instability (MSI) testing, tumor morphology, and family history were compared to determine which screening strategy is superior in identifying Lynch syndrome (LS) in unselected women with newly diagnosed endometrial cancer (EC) who have undergone universal germline mutation testing.

Methods: A prospective cohort study was performed that recruited women with newly diagnosed EC. Participants completed a family history assessment with molecular characterization of EC with IHC and MSI testing and EC assessment for LS-associated morphologic features and underwent universal germline mutation testing for mutations in the mismatch repair pathway.

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Measuring error rates in genomic perturbation screens: gold standards for human functional genomics.

Mol Syst Biol

July 2014

Donnelly Centre and Banting and Best Department of Medical Research, University of Toronto, Toronto, ON, Canada Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada

Technological advancement has opened the door to systematic genetics in mammalian cells. Genome-scale loss-of-function screens can assay fitness defects induced by partial gene knockdown, using RNA interference, or complete gene knockout, using new CRISPR techniques. These screens can reveal the basic blueprint required for cellular proliferation.

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Fertility sparing treatment of complex atypical hyperplasia and low grade endometrial cancer using oral progestin.

Gynecol Oncol

May 2014

Department of Obstetrics & Gynecology, University of Toronto, Division of Gynecologic Oncology, Princess Margaret Hospital/University Health Network, 610 University Ave M 700, Toronto, Ontario M5G 2M9, Canada. Electronic address:

Objective: Oral progestin is an alternative to hysterectomy for women with complex atypical hyperplasia (CAH) or grade one endometrial cancer (G1EC) who wish fertility preservation. We evaluated treatment efficacy and fertility outcomes in this population.

Methods: Women <45 y treated with oral progestin for CAH or G1EC were identified from two cancer centers.

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A stepwise multimodality treatment of diffuse angiolymphoid hyperplasia of the orbit.

Orbit

February 2014

Department of Ocular Oncology, Princess Margaret Hospital/University Health Network, University of Toronto, Toronto, ON , Canada .

The definite treatment of angiolymphoid hyperplasia is debatable. We report the case of a middle-aged man with an extensive angiolymphoid hyperplasia of the orbit that has been recalcitrant to multiple single-line treatments for 9 years. His previous treatment included several short courses of full-dose systemic steroids, debulking surgeries, and orbital radiotherapy.

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Purpose: To report the use of optical coherence tomography (OCT) in verifying the specificity of the ultrasonographic "apical double echo" sign in detecting subtle subretinal fluid (SRF) associated with small choroidal melanocytic tumors.

Methods: Retrospective review of consecutive patients demonstrating ultrasonographic "apical double echo," indicative of subtle SRF, who concurrently underwent OCT on initial evaluation of untreated small choroidal melanocytic tumors. Ultrasonography was performed with eyecubed version 3, ophthalmic ultrasound system (Ellex/Innovative Imaging, Inc, Adelaide, Australia) and OCT with spectral-domain OCT, Cirrus HD-OCT, model 4000 (Carl Zeiss; Meditec, Dublin, CA).

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Comorbidity and prognosis in head and neck cancers: Differences by subsite, stage, and human papillomavirus status.

Head Neck

June 2014

Department of Medicine, Medical Biophysics, and Epidemiology, Ontario Cancer Institute, Princess Margaret Hospital/University Health Network, Toronto, Ontario, Canada; Department of Biostatistics, Princess Margaret Hospital, Toronto, Ontario, Canada.

Background: The prognostic utility of comorbidity on head and neck cancer may differ by subsite, stage, and human papillomavirus (HPV) status.

Methods: We reviewed the medical records of 4953 patients with head and neck cancer for comorbidity (Charlson Comorbidity Index [CCI]), smoking, and alcohol history. Multivariate proportional hazards assessed the association of CCI with survival.

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Purpose: To compare the dose distributions and late radiation toxicities for (125)I brachytherapy (IBT) and stereotactic radiation therapy (SRT) in the treatment of juxtapapillary choroidal melanoma.

Methods: Ninety-four consecutive patients with juxtapapillary melanoma were reviewed: 30 have been treated with IBT and 64 with SRT. Iodine-125 brachytherapy cases were modeled with plaque simulator software for dosimetric analysis.

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Elderly patients with advanced NSCLC in phase III clinical trials: are the elderly excluded from practice-changing trials in advanced NSCLC?

J Thorac Oncol

March 2013

Division of Medical Oncology & Hematology, Princess Margaret Hospital & University Health Network, University of Toronto, Ontario, Canada.

Introduction: Elderly patients constitute the majority of patients with advanced non-small-cell lung cancer (NSCLC). The median age of newly diagnosed patients with lung cancer in the United States is approximately 70 years. Despite this, the elderly are significantly underrepresented in clinical trials.

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Flat choroidal pigmented lesions have few differential diagnoses but encompass a wide range of clinical presentations. The authors report two cases of bilateral multifocal choroidal hyper-pigmented patches discovered in asymptomatic patients. Fluorescein angiography showed a normal pattern without blockage in the hyperpigmented areas with an otherwise normal choroidal vascular architecture.

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Chromatin landscape and endocrine response in breast cancer.

Epigenomics

December 2012

Ontario Cancer Institute, Princess Margaret Hospital-University Health Network & the Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada.

Over two-thirds of breast cancers rely on estrogen receptor α (ERα) for their growth. Endocrine therapies antagonize estrogen-dependent ERα activation but resistance to these treatments occurs and is associated with poor prognosis. Crosstalk between alternative survival pathways and ERα are currently held as the primary cause of resistance.

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Introduction: The TORCH (Tarceva or Chemotherapy) trial randomized patients with advanced non-small-cell lung cancer to first-line erlotinib followed by second-line cisplatin/gemcitabine versus. standard inverse sequence. The trial, designed to test noninferiority in overall survival, was stopped at interim analysis because of inferior survival in the experimental arm.

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Objectives: Preclinical and epidemiological studies have suggested the use of supplements such as selenium and vitamin E for prostate cancer (PCa) prevention; however, clinical trials have not demonstrated clear benefit in patients. This study aims to investigate the current prevalence and predictors for use of these supplements in men in a urology population. DESIGN, SUBJECTS, AND OUTCOMES MEASURED: Three hundred and twelve (312) men visiting the Princess Margaret Hospital Ambulatory Urology Clinic were enrolled in this University Health Network Research Ethics Board-approved questionnaire-based study investigating supplement use, reasons for use and demographic characteristics.

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Background: High plasma osteopontin (OPN) has been linked to tumour hypoxia, metastasis, and poor prognosis. This study aims to assess whether plasma osteopontin was a biomarker of increasing progression within prostate cancer (PCa) prognostic groups and whether it reflected treatment response to local and systemic therapies.

Methods: Baseline OPN was determined in men with localised (n=199), locally recurrent (n=9) and castrate-resistant, metastatic PCa (CRPC-MET; n=37).

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Angiogenesis is an important host process that interacts with cancer cells to promote growth, invasion, and metastasis. Numerous therapeutic agents targeting the VEGF pathway have been developed. Host variability in VEGF pathway can influence angiogenesis-dependent signaling, altering sensitivity to antiangiogenic drugs and prognosis.

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Optimal management of elderly patients with glioblastoma.

Cancer Treat Rev

June 2013

Department of Radiation Oncology, Princess Margaret Hospital/University Health Network, University of Toronto, Toronto, ON, Canada.

Median age at diagnosis in patients with glioblastoma (GB) is slowly increasing with an aging population in Western countries, and was 64years in 2006. The number of patients age 65 and older with GB will double in 2030 compared with 2000. Survival in this older cohort of patients is significantly less than seen in younger patients.

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Objectives: To present a technique for reconstruction of the vertical partial laryngectomy defect using a vascularized carrier consisting of a temporoparietal free flap, cartilage graft, and buccal mucosal graft; to evaluate the oncologic outcomes with respect to locoregional control and overall survival; and to provide an assessment of patient quality of life and functional outcomes.

Design: Retrospective medical record review and prospective cross-sectional analysis of functional outcomes.

Setting: Princess Margaret Hospital-University Health Network and the Odette Cancer Centre-Sunnybrook Health Sciences Centre.

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Essential gene profiles in breast, pancreatic, and ovarian cancer cells.

Cancer Discov

February 2012

Donnelly Centre and Banting & Best Department of Medical Research, University of Toronto, Toronto, Canada.

Unlabelled: Genomic analyses are yielding a host of new information on the multiple genetic abnormalities associated with specific types of cancer. A comprehensive description of cancer-associated genetic abnormalities can improve our ability to classify tumors into clinically relevant subgroups and, on occasion, identify mutant genes that drive the cancer phenotype ("drivers"). More often, though, the functional significance of cancer-associated mutations is difficult to discern.

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