Catalogue Search | MBRL
Search Results Heading
Explore the vast range of titles available.
MBRLSearchResults
-
DisciplineDiscipline
-
Is Peer ReviewedIs Peer Reviewed
-
Item TypeItem Type
-
SubjectSubject
-
YearFrom:-To:
-
More FiltersMore FiltersSourceLanguage
Done
Filters
Reset
109
result(s) for
"Sutcliffe, Simon"
Sort by:
Transforming Canada's role in global cancer control
by
Hammad, Nazik
,
Sutcliffe, Simon
,
Giuliani, Meredith
in
Canada Health Act
,
Cancer
,
Cancer therapies
2021
Cancer has not been an explicit priority of Canada's international health and development agenda, but it is key to realising the country's Sustainable Development Goal commitments. Multiple converging political, health, and social forces could now drive support for a more integrated Canadian approach to global cancer control. Success will depend on the extent to which Canadian leaders and institutions can build consensus as a community and agree to work together. Collaboration should include agreement on the framing and prioritisation of the core issues, building a broad coalition base, aligning with priorities of international partners, and on a governance structure that reflects the principles of equity, diversity, and inclusion. This Series paper will discuss global cancer control within Canada's global health agenda, how Canada can address its history of colonisation and present-day disparities in its global work, and the challenges and opportunities of creating a Canadian global cancer control network.
Journal Article
Immune Stimulation Using a Gut Microbe-Based Immunotherapy Reduces Disease Pathology and Improves Barrier Function in Ulcerative Colitis
2018
Current ulcerative colitis (UC) treatments are focused on symptom management primarily via immune suppression. Despite the current arsenal of immunosuppressant treatments, the majority of patients with UC still experience disease progression. Importantly, aggressive long-term inhibition of immune function comes with consequent risk, such as serious infections and malignancy. There is thus a recognized need for new, safe and effective treatment strategies for people living with UC that work upstream of managing the symptoms of the disease. The objective of this study was to evaluate a microbial-based treatment, QBECO, that functions to productively activate rather than suppress mucosal immune function as a novel approach to treat UC.
Two established models of experimental colitis, namely chemically-induced DSS colitis and the spontaneous colitis that develops in
deficient mice, were used to assess whether QBECO treatment could ameliorate gastrointestinal disease. A small exploratory 16-week QBECO open-label trial was subsequently conducted to test the safety and tolerability of this approach and also to determine whether similar improvements in clinical disease and histopathology could be demonstrated in patients with moderate-to-severe UC.
QBECO treatment successfully reduced inflammation and promoted mucosal and histological healing in both experimental models and in UC patients. The preclinical models of colitis showed that QBECO ameliorated mucosal pathology, in part by reducing inflammatory cell infiltration, primarily that induced by neutrophils and inflammatory T cells. The most rapid and noticeable change observed in QBECO treated UC patients was a marked reduction in rectal bleeding.
Collectively, this work demonstrates for the first time that strategically activating immune function rather than suppressing it, not only does not worsen colitis induced-damage, but may lead to an objective reduction in UC disease pathology.
Journal Article
Describing perspectives of health care professionals on active surveillance for the management of prostate cancer
by
Lattouf, Jean-Baptiste
,
Sutcliffe, Simon
,
Fitch, Margaret
in
Active surveillance
,
Analysis
,
Cancer patients
2018
Background
Over the last decade, active surveillance has proven to be a safe approach for patients with low-risk prostate cancer. Although active surveillance presents several advantages for both patients and the health care system, all eligible patients do not adopt this approach. Our goal was to evaluate the factors that influence physicians to recommend active surveillance and the barriers that impact adherence to this approach.
Methods
Focus groups (
n
= 5) were held with physicians who provided care for men with low-risk prostate cancer and had engaged in conversations with men and their families about active surveillance. The experience of health care professionals (HCPs) was captured to understand their decisions in proposing active surveillance and to reveal the barriers and facilitators that affect the adherence to this approach. A content analysis was performed on the verbatim transcripts from the sessions.
Results
Although physicians agreed that active surveillance is a suitable approach for low-risk prostate cancer patients, they were concerned about the rapidly evolving and non-standardized guidelines for patient follow-up. They pointed out the need for additional tools to appropriately identify proper patients for whom active surveillance is the best option. Urologists and radiation-oncologists were keen to collaborate with each other, but the role of general practitioner remained controversial once patients were referred to a specialist.
Conclusions
Integration of more reliable tools and/or markers in addition to more specific guidelines for patient follow-up would increase the confidence of both patients and physicians in the choice of active surveillance.
Journal Article
Cancer control—a global challenge requiring collaborative solutions
2011
The numeric burden of cancer will not be borne equally the developing/resource-constrained nations will see the number of new cases rise disproportionately from six million in 2005 to in excess of nine million in 2020, compared with approximately four million rising to five million over the same time period in developed/ high-resource countries. Over the same time period, cancer mortality will increase by 25% in Westernized/ free-market economies but will increase by between 140 and >180% in more resource-challenged regions of the world, a situation reflecting population age structure change, growth, and resource availability [3]. Thus, those least able to address the growing burden of cancer will be those who inherit the greatest challenge of cancer control.
Journal Article
Canadian Men’s perspectives about active surveillance in prostate cancer: need for guidance and resources
by
Sutcliffe, Simon
,
Alibhai, Shabbir
,
Fitch, Margaret
in
Access to information
,
Active surveillance
,
Analysis
2017
Background
In prostate cancer, men diagnosed with low risk disease may be monitored through an active surveillance. This research explored the perspectives of men with prostate cancer regarding their decision-making process for active surveillance to identify factors that influence their decision and assist health professionals in having conversations about this option.
Methods
Focus group interviews (
n
= 7) were held in several Canadian cities with men (
N
= 52) diagnosed with prostate cancer and eligible for active surveillance. The men’s viewpoints were captured regarding their understanding of active surveillance, the factors that influenced their decision, and their experience with the approach. A content and theme analysis was performed on the verbatim transcripts from the sessions.
Results
Patients described their concerns of living with their disease without intervention, but were reassured by the close monitoring under AS while avoiding harmful side effects associated with treatments. Conversations with their doctor and how AS was described were cited as key influences in their decision, in addition to availability of information on treatment options, distrust in the health system, personality, experiences and opinions of others, and personal perspectives on quality of life.
Conclusions
Men require a thorough explanation on AS as a safe and valid option, as well as guidance towards supportive resources in their decision-making.
Journal Article
Comparing Perspectives of Canadian Men Diagnosed With Prostate Cancer and Health Care Professionals About Active Surveillance
by
Sutcliffe, Simon
,
Fitch, Margaret
,
Drachenberg, Darrel E
in
Decision making
,
Patients
,
Prostate cancer
2020
Active surveillance (AS) has gained acceptance as a primary management approach for patients diagnosed with low-risk prostate cancer (PC). In this qualitative study, we compared perspectives between patients and health care professionals (HCP) to identify what may contribute to patient–provider discordance, influence patient decision-making, and interfere with the uptake of AS. We performed a systematic comparison of perspectives about AS reported from focus groups with men eligible for AS (7 groups, N = 52) and HCP (5 groups, N = 48) who engaged in conversations about AS with patient. We used conventional content analysis to scrutinize separately focus group transcripts and reached a consensus on similar or divergent viewpoints between them. Patients and clinicians agreed that AS was appropriate for low grade PC and understood the low-risk nature of the disease. They shared the perspective that disease status was a critical factor to pursue or discontinue AS. However, men expressed a greater emphasis on quality of life in their decisions related to AS. Patients and clinicians differed in their perspectives on the clarity, availability, and volume of information needed and offered; clinicians acknowledged variations between HCP when presenting AS, while patients were often compelled to seek additional information beyond what was provided by physicians and experienced difficulty in finding or interpreting information applicable to their situation. A greater understanding of discordant perspectives about AS between patients and HCP can help improve patient engagement and education, inform development of knowledge-based tools or aids for decision-making, and identify areas that require standardization across the clinical practice.
Journal Article
The global cancer epidemic: opportunities for Canada in low- and middle-income countries
2012
Affiliations: From the Women's College Research Institute (Ginsburg), the Department of Medicine (Ginsburg, [Yasmin Rahim]) and the Division of Global Health, Dalla Lana School of Public Health, University of Toronto, Toronto, Ont.; the International Breast Cancer Research Foundation (Ginsburg), Madison, Wis.; the Collaboration for Cancer Outcomes Research and Evaluation (Hanna), Liverpool Hospital, New South Wales, Australia; the London Regional Cancer Program ([Theodore Vandenberg]), London, Ont.; the Division of Medical Oncology, Department of Oncology (Vandenberg), University of Western Ontario, London, Ont.; the Division of Medical Oncology, Department of Oncology (Joy), University of Alberta, Edmonton, Alta.; Cross Cancer Institute (Joy, Game), Edmonton Alta.; the Division of Medical Oncology (Clemons), The Ottawa Hospital Cancer Centre; the Department of Medicine (Clemons), University of Ottawa, Ottawa, Ont.; the Department of Medicine, Division of Clinical Hematology (Game), Royal Alexandra Hospital, Edmonton, Alta.; the Departments of Medicine and Radiation Oncology ([Ronald MacCormick]), Cape Breton Cancer Centre, Sydney, NS; Faculty of Medicine (MacCormick), Dalhousie University, Halifax, NS; the Department of Obstetrics and Gynecology (Elit), McMaster University, Hamilton, Ont.; Juravinski Cancer Centre, Hamilton Health Sciences Centre (Elit), Hamilton, Ont.; Princess Margaret Hospital ([Barry Rosen], Gospodarowicz), Toronto, Ont.; Stronach Regional Cancer Centre (Rahim), Newmarket, Ont.; the Department of Laboratory Medicine and Pathobiology ([William Geddie]), University of Toronto, Toronto, Ont.; Canadian Partnership Against Cancer (Sutcliffe), Toronto, Ont.; Terry Fox Research Institute (Sutcliffe), Vancouver, BC; the Faculty of Graduate Studies (Sutcliffe), University of British Columbia, Vancouver, BC; the International Network of Cancer Treatment and Research - Canada (Sutcliffe), Brussels, Belgium; the Department of Radiation Oncology (Gospodarowicz), University of Toronto, Toronto, Ont.; and the Union for International Cancer Control (Gospodarowicz), Geneva, Switzerland.
Journal Article
Novel Microbial-Based Immunotherapy Approach for Crohn's Disease
2019
Current Crohn's disease (CD) therapies focus on suppressing immune function and come with consequent risk, such as infection and cancer. Notwithstanding, most CD patients still experience disease progression. There is a need for new CD treatment strategies that offer better health outcomes for patients.
To assess safety, efficacy, and tolerability of a novel microbial-derived immunotherapy, QBECO, that aims to restore rather than suppress immune function in CD.
A randomized, double-blind, placebo-controlled trial was conducted in 68 patients with moderate-to-severe CD. Primary endpoints: safety and Week 8 clinical improvement. Secondary endpoints: Week 8 clinical response and remission. Week 8 responders continued blinded treatment through Week 16; non-responders received open-label QBECO from Weeks 9-16. Exploratory analyses included immune biomarker and genotype assessments.
QBECO was well-tolerated. Mean reduction in Crohn's Disease Activity Index (CDAI) score was -68 for QBECO vs. -31 for placebo at Week 8. Improvement with QBECO continued through Week 16 (-130 CDAI reduction). Week 8 QBECO clinical response, improvement and remission rates were 41.2%, 32.4%, 29.4% vs. 26.5%, 23.5%, 23.5% for placebo. TNFα inhibitor-naïve subjects achieved higher response rates at Week 8 with QBECO (64%) vs. placebo (26%). Specific immune biomarkers were identified that linked to QBECO response.
This proof-of-concept study supports further investigation for the use of QBECO as a novel immunotherapy approach for CD. Biomarker analyses suggests it may be feasible to personalize CD treatment with QBECO. Larger trials are now needed to confirm clinical improvement and the unique biological findings.
NCT01809275 (https://clinicaltrials.gov/ct2/show/NCT01809275).
Journal Article
Site-Specific Immunomodulator: A Novel Treatment for Crohn’s Disease
by
Sutcliffe, Simon
,
Gunn, Hal
,
Mullins, David W.
in
Bacteria
,
Care and treatment
,
Clinical Study
2015
We investigated the mechanism of action, safety, and efficacy of the Site-Specific Immunomodulator (SSI) QBECO, a novel immunotherapy for Crohn’s disease (CD). Using human monocytic THP-1 cells, we demonstrate that SSI QBECO (derived from the common colon bacteria E. coli) activates macrophages to an M1 phenotype (associated with enhanced capacity to eliminate bacteria and activate innate immune responses). We assessed SSI QBECO in a compassionate use protocol of ten adult patients with active CD. Patients with moderate to severe clinical symptoms receiving conventional CD treatments and/or complementary therapies were included, except patients receiving anti-TNF medications. SSI QBECO was self-administered subcutaneously every second day, for a minimum of 2.5 months and a maximum of 11 months. All 10 patients reported improvement of symptoms while on the SSI QBECO treatment. Seven patients reported full resolution of clinical symptoms during a course of SSI QBECO of at least three months. Three patients have experienced ongoing sustained clinical remission after discontinuing all medications, including SSI treatment. The longest case of clinical remission is still ongoing (>4 years). No serious severe adverse clinical events were reported. Collectively, we conclude that treatment with the immunoactive SSI QBECO was well tolerated and effective for treatment of Crohn’s disease in this case series.
Journal Article
The implementation of the Plan Esperanza and response to the imPACT Review
by
Calderón, Mónica
,
Sutcliffe, Simon
,
Manrique, Javier
in
Breast cancer
,
Budgets
,
Decentralization
2017
Following the implementation of the National Cancer Prevention and Control Results-based Budget Programme (PpR Cancer–024) in 2011, the Peruvian Government approved the Plan Esperanza—a population-based national cancer control plan—in 2012. Legislation that ensured full government-supported funding for people who were otherwise unable to access or afford care and treatment accompanied the Plan. In 2013, the Ministry of Health requested an integrated mission of the Programme of Action for Cancer Therapy (imPACT) report to strengthen cancer control in Peru. The imPACT Review, which was executed in 2014, assessed Peru's achievements in cancer control, and areas for improvement, including cancer control planning, further development of population-based cancer registration, increased prevention, early diagnosis, treatment and palliative care, and the engagement and participation of civil society in the health-care system. This Series paper gives a brief history of the development of the Plan Esperanza, describes the innovative funding model that supports it, and summarises how funds are disseminated on the basis of disease, geography, and demographics. An overview of the imPACT Review, and the government's response in the context of the Plan Esperanza, is provided. The development and execution of the Plan Esperanza and the execution of and response to the imPACT Review demonstrates the Peruvian Government's commitment to fighting cancer across the country, including in remote and urban areas.
Journal Article