Publications by authors named "Martin Chasen"

Background: The interdependence of cytokines and appetite-modifying hormones implicated in cancer anorexia-cachexia syndrome (CACS) remains unclear. This study aimed to regroup these cytokines and hormones into distinct inflammatory (or non-inflammatory) pathways and determine whether these pathways can classify patients with CACS phenotypes.

Methods: Clinical characteristics of 133 patients [61.

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The majority of Canadians agree they have the right to end-of-life care in their own homes. While a palliative approach to care in the home setting has been demonstrated to be beneficial for patients and the healthcare system, it has rarely been well-integrated through an eHealth approach. Thus, in 2018, we piloted the RELIEF app, a digital symptom self-reporting tool for patients with palliative care needs.

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Background: Technological advancements have rapidly increased the use of point-of-care ultrasound (POCUS) across various medical disciplines, leading to real-time information for clinicians at the bed side. However, literature reveals scant evidence of POCUS use in palliative care. The objective of this study was to examine the use of POCUS in a specialist palliative care setting.

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The lack of timely symptom reporting remains a barrier to effective symptom management and comfort for patients with cancer-related palliative care needs. Poor symptom management at home can lead to unwanted outcomes, such as emergency department visits and death in hospital. We developed and evaluated RELIEF, a remote symptom self-reporting app for community patients with palliative care needs.

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Malnutrition, muscle loss, and cachexia are prevalent in cancer and remain key challenges in oncology today. These conditions are frequently underrecognized and undertreated and have devastating consequences for patients. Early nutrition screening/assessment and intervention are associated with improved patient outcomes.

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Background: Cancer-associated weight loss (WL) associates with increased mortality. International consensus suggests that WL is driven by a variable combination of reduced food intake and/or altered metabolism, the latter often represented by the inflammatory biomarker C-reactive protein (CRP). We aggregated data from Canadian and European research studies to evaluate the associations of reduced food intake and CRP with cancer-associated WL (primary endpoint) and overall survival (OS, secondary endpoint).

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Background: The COVID-19 pandemic has resulted in drastic changes in the global healthcare delivery landscape and has had practical repercussions for cancer survivors. This systematic rapid living review has been undertaken to synthesise the available knowledge regarding the impact of the COVID-19 pandemic in a timely manner. This initial rapid review will present the findings of literature published up to August 27, 2020.

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Background: Patients often view "palliative care" (PC) as an approach that is synonymous with end-of-life and death, leading to shock and fear. Differing cultural and social norms and religious affiliations greatly determine perception of PC among diverse populations.

Methods: This prospective observational study aimed to explore perceptions of PC among South Asian community members at one Canadian site.

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Background: Anorexia-cachexia syndrome (ACS) is a complex condition in advanced cancer patients, defined by disproportionate loss of skeletal muscle mass, and a lack or loss of appetite. This condition greatly lowers the quality of life and limits the treatment options. ACS is commonly associated with gastrointestinal symptoms such as nausea and vomiting.

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Purpose: Initial investigation of the impact of a Cancer Survivorship Clinic following its introduction in February 2017.

Methods: A systematic chart review of 176 patients enrolled in the Cancer Survivorship Clinic (CSC) who completed a minimum of one follow-up visit after the initial baseline visit. This was assessed using three screening tools: distress thermometer (DT), Canadian Problem Checklist (CPC), and Edmonton Symptom Assessment Scale (ESAS).

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Knowledge of the involvement of the neurokinin substance P in emesis has led to the development of the neurokinin-1 receptor antagonists (NK-1 RAs) for control of chemotherapy-induced nausea and vomiting (CINV), in combination with serotonin type 3 receptor antagonists and corticosteroids. The NK-1 RA rolapitant, recently approved in oral formulation, has nanomolar affinity for the NK-1 receptor, as do the other commercially available NK-1 RAs, aprepitant and netupitant. Rolapitant is rapidly absorbed and has a long half-life in comparison to aprepitant and netupitant.

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Purpose: Patients are living extended life with advanced cancer making it chronic rather than imminently terminal. Literature on the experience of living with advanced cancer is emerging, indicating ongoing polysymptomatic burden, lack of information, burnout (patients and caregivers), and emotional concerns, all of which contribute to emotional distress. The interdisciplinary Ottawa Palliative Rehabilitation Program (PRP) offers a scarce clinical resource for this population.

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Purpose: Patients with advanced cancer have increased life expectancy but suffer from ongoing burden. Depressive symptomatology is their most common mental health concern. The Ottawa Palliative Rehabilitation Program (PRP) offers rehabilitation for this population.

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Purpose/objectives: To examine oncology nurses' attitudes toward and reported use of the Edmonton Symptom Assessment System (ESAS) and to determine whether the length of work experience and presence of oncology certification are associated with their attitudes and reported usage.
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Design: Exploratory, mixed-methods study employing a questionnaire approach.

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Article Synopsis
  • The Canadian Cancer Trials Group study HN.6 is a major clinical trial comparing two treatments for advanced squamous cell carcinoma of the head and neck, focusing on the use of anti-EGFR antibodies alongside radiotherapy versus standard chemoradiotherapy.
  • The trial involved 320 patients across 17 centers and aimed to assess progression-free survival (PFS) between two treatment regimens: standard-fractionation radiotherapy with cisplatin and accelerated-fractionation radiotherapy with panitumumab.
  • Results showed that both treatment arms had similar 2-year PFS rates (73% for cisplatin and 76% for panitumumab) and overall survival rates (85% for cisplatin and 88%
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Purpose: Addition of rolapitant to standard antiemetic therapy improved protection against chemotherapy-induced nausea and vomiting (CINV) in phase 3 trials of patients receiving highly emetogenic chemotherapy (HEC) or moderately emetogenic chemotherapy (MEC). Here, we assessed the impact of CINV on the daily lives of patients receiving HEC or MEC using the Functional Living Index-Emesis (FLIE).

Methods: In three double-blind phase 3 studies, patients receiving HEC or MEC were randomized 1:1 to receive oral rolapitant 180 mg or placebo prior to chemotherapy plus 5-hydroxytryptamine type 3 receptor antagonist and dexamethasone therapy.

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Objective: Rolapitant, a novel neurokinin-1 receptor antagonist (RA), was shown to protect against delayed chemotherapy-induced nausea and vomiting (CINV) during the first cycle of moderately emetogenic chemotherapy (MEC) or highly emetogenic chemotherapy (HEC) in randomized, double-blind trials. This analysis explored the efficacy and safety of rolapitant in preventing CINV over multiple cycles of MEC or HEC.

Patients And Methods: Patients in one phase III MEC, one phase II HEC, and two phase III HEC clinical trials were randomized to receive oral rolapitant (180 mg) or placebo in combination with a 5-hydroxytryptamine type 3 RA and dexamethasone.

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Chemotherapy-induced nausea and vomiting (CINV), both acute and delayed, has a dramatic effect on the well-being and quality of life of patients with cancer. Improved understanding of the mechanisms involved in CINV has led to the development of agents targeting the 5-HT3 receptor as well as the NK-1 receptor. Antiemetic prophylaxis given to patients receiving highly emetogenic chemotherapy combines agents blocking the 5-HT3 and NK-1 receptors along with corticosteroids given regularly and repeatedly.

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Context: Cancer patients experience a high symptom burden throughout their illness. Despite this, patients' symptoms and needs are often not adequately screened for, assessed, and managed.

Objectives: This study investigated the attitudes of cancer care professionals toward standardized systematic symptom assessment and the Edmonton Symptom Assessment System (ESAS) and their self-reported use of the instrument in daily practice in a large healthcare jurisdiction where this is routine.

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Background: Highly emetogenic chemotherapy induces emesis in almost all patients in the absence of prophylaxis. Guidelines recommend use of a neurokinin-1 (NK-1) receptor antagonist in conjunction with a 5-HT3 receptor antagonist and corticosteroid in patients receiving highly emetogenic chemotherapy. We aimed to assess rolapitant, an NK-1 receptor antagonist, for prevention of chemotherapy-induced nausea and vomiting in patients with cancer after administration of cisplatin-based highly emetogenic chemotherapy.

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Background: Chemotherapy-induced nausea and vomiting is a common side-effect of many antineoplastic regimens and can occur for several days after treatment. We aimed to assess the neurokinin-1 receptor antagonist rolapitant, in combination with a serotonin (5-HT3) receptor antagonist and dexamethasone, for the prevention of chemotherapy-induced nausea and vomiting in patients with cancer after administration of moderately emetogenic chemotherapy or regimens containing an anthracycline and cyclophosphamide.

Methods: We conducted a global, randomised, double-blind, active-controlled, phase 3 study at 170 cancer centres in 23 countries.

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Purpose: Existing definitions of clinically important weight loss (WL) in patients with cancer are unclear and heterogeneous and do not consider current trends toward obesity.

Methods: Canadian and European patients with cancer (n = 8,160) formed a population-based data set. Body mass index (BMI) and percent WL (%WL) were recorded, and patients were observed prospectively until death.

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Background: Cancer Care Ontario promotes the Edmonton Symptom Assessment System (ESAS) for standardized systematic screening and assessment of symptoms across cancer centers in Ontario, Canada. Attitudes of medical oncologists (MOs), radiation oncologists (ROs), and general practitioners in oncology (GPOs) toward palliative care, and the ESAS were surveyed in Ottawa.

Methods: A four-part questionnaire was developed, drawing on items from similar studies.

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