Optimizing evidence-based practice implementation: a case study on simulated patient protocols in long-term opioid therapy

BACKGROUND

Substantial work has been done to update or create evidence-based practices (EBPs) in the changing health care landscape. However, the success of these EBPs is limited by low levels of clinician implementation.

OBJECTIVE

The goal of this study is to describe the use of standardized/simulated patient/person (SP) methodology as a framework to develop implementation bundles to increase the effectiveness, sustainability, and reproducibility of EBPs across health care clinicians.

DESIGN

We observed 12 clinicians' first-time experiences with six unique decision-making algorithms, developed previously using rigorous Delphi methods, for use with patients exhibiting concerning behaviors associated with long-term opioid therapy (LTOT) for chronic pain. Clinicians were paired with two SPs trained to portray individuals with one of the concerning behaviors addressed by the algorithms in a telehealth environment. The SP evaluations were followed by individual interviews, guided by the Consolidated Framework for Implementation Research (CFIR), with each of the clinician participants.

PARTICIPANTS

Twelve primary care clinicians and 24 SPs in Western Pennsylvania.

MAIN MEASUREMENT

The primary outcome was identifying likely facilitators for the successful implementation of the EBP using the SP methodology. Our secondary outcome was to assess the feasibility of using SPs to illuminate likely implementation barriers and facilitators.

RESULTS

The SP portrayal illuminated factors that were pertinent to address in the implementation bundle. SPs were realistic in their portrayal of patients with concerning behaviors associated with LTOT for chronic pain, but clinicians also noted that their patients in practice may have been more aggressive about their treatment plan.

CONCLUSIONS

SP simulation provides unique opportunities for obtaining crucial feedback to identify best practices in the adoption of new EBPs for high-risk patients.

SETTING

Zoom simulated patient evaluations.

Models of care in secure services for people with intellectual and developmental disability: Implementing the Walkway to Wellness

BACKGROUND

Changes to policy around inpatient services for people with intellectual and developmental disability (IDD) who offend, have led to a need for services to reconsider their models of care. This has led to calls for more tailored, patient-centred care models, with less reliance solely on offence-related treatment programmes which can be unsuitable for a growing proportion of patients with more complex cognitive and behavioural difficulties. In response, the Walkway to Wellness (W2W) was developed at one National Health Service Trust providing secure services to people with IDD, with the intention of delivering a more collaborative, co-produced and goal-oriented care model that was better understood by staff and patient stakeholders.

AIMS

To evaluate the implementation of the W2W using Normalisation Process Theory (NPT), an evidence-based theoretical approach is used across a number of health settings.

METHODS

Staff were invited to complete a short questionnaire, using the NPT informed Normalisation Measure Development questionnaire, at two time points along the implementation process. Patients were invited to complete a simplified questionnaire. Both groups were asked for their views on the W2W and the process of its implementation.

RESULTS

Although the W2W was more familiar to staff at the second time point, scores on the four NPT constructs showed a trend for it being less embedded in practice, with significant results concerning the ongoing appraisal of the new model. Patient views were mixed; some saw the benefit of more goal-oriented processes, but others considered it an additional chore hindering their own perceived goals.

CONCLUSION

Early involvement of all stakeholders is required to enhance the understanding of changes to models of care. Live feedback should be used to refine and revise the model to meet the needs of patients, carers and staff members.

Using Mobile and Remote Simulation as a Research Methodology for Health Care Delivery Research

SUMMARY STATEMENT

Mobile and remote simulation can be used as a research methodology to collect data in simulated environments to answer research questions pertaining to health care delivery. This research methodology can exponentially increase the reachable target study participants and provide generalizable conclusions. Using a large-scale national study in the United States as an exemplar, this article outlines the technology and equipment required to conduct mobile and remote simulations for research purposes. The cost associated with using mobile and remote simulations as well as the advantages and challenges of using this research methodology are also discussed.

A Simulated Patient Protocol for Implementing Evidence-Based Practices in Health Care Delivery

Background

Substantial work has been done to update or create evidence-based practices (EBPs) in the changing health care landscape. However, the success of these EBPs is limited by low levels of clinician implementation. The goal of this study is to describe the use of simulated patient (SP) methodology as a framework to develop implementation bundles to increase the effectiveness, sustainability, and reproducibility of EBPs across health care clinicians. The primary outcome was identifying likely facilitators for the successful implementation of EBP. Our secondary outcome was the assess the feasibility of using SPs to illuminate likely implementation barriers and facilitators.

Methods

We observed 12 primary care clinicians' first-time experiences with six unique decision-making algorithms for use with patients exhibiting concerning behaviors associated with long-term opioid therapy (LTOT) for chronic pain over Zoom. Each clinician was paired with two simulated patients trained to portray individuals with one of the concerning behaviors addressed by the algorithms. The Standardized Patient-evaluations were followed by CFIR guided one-on-one interviews with the clinicians.

Results

The SP portrayal illuminated factors that were pertinent to address in the implementation bundle. SPs were realistic in their portrayal of patients with concerning behaviors associated with LTOT for chronic pain, but clinicians also noted that their patients in practice may have been more aggressive about their treatment plan.

Conclusions

SP simulation provides unique opportunities for obtaining crucial feedback to identify best practices in the adoption of new EBPs for high-risk patients.

Right coronary artery to left ventricle coronary cameral fistula in a cat

A six-month-old female intact domestic shorthair cat was presented for evaluation of a loud heart murmur. Transthoracic echocardiography revealed dilation of the left ventricle secondary to an abnormal vessel shunting blood into the left ventricular outflow tract at a high velocity during diastole. Multidetector computed tomography angiography revealed a coronary cameral fistula that originated at the right coronary artery, encircled the heart, and then terminated into the left ventricular outflow tract. This case report documents the first known case of a coronary cameral fistula in a cat. Multimodal imaging was an essential aspect to diagnosing the congenital lesion in this case.

Biophotonic tools for probing extracellular matrix mechanics

The complex, hierarchical and heterogeneous biomechanics of the extracellular matrix (ECM) are central to the health of multicellular organisms. Characterising the distribution, dynamics and above all else origins of ECM biomechanics are challenges that have captivated researchers for decades. Recently, a suite of biophotonics techniques have emerged as powerful new tools to investigate ECM biomechanics. In this mini-review, we discuss how the non-destructive, sub-micron resolution imaging capabilities of Raman spectroscopy and nonlinear microscopy are being used to interrogate the biomechanics of thick, living tissues. These high speed, label-free techniques are implemented during mechanical testing, providing unprecedented insight into the compositional and structural response of the ECM to changes in the mechanical environment.

OS12.4.A MHC class II-restricted transgenic T cell receptor therapy targeting mutant capicua transcriptional repressor in experimental gliomas

BACKGROUND

Glioma subtypes are classified according to their characteristic mutations and show a high degree of resistance to standard therapeutic interventions such as radiotherapy and alkylating chemotherapy. Some of these characteristic mutations have shown to generate immunogenic neoepitopes that can be targeted with immunotherapy. 70% of oligodendrogliomas carry capicua transcriptional repressor (CIC) inactivating mutations.

RESULTS

In a screen for potential immunogenic glioma neoepitopes we identified recurrent CIC hotspot mutations at position 215 (CICR215W/Q) expressed in a subset of oligodendrogliomas as an immunogenic major histocompatibility complex (MHC) class II-restricted neoepitopes. Peptide-based vaccination of MHC-humanized mice resulted in the generation of robust mutation-specific T cell responses against CICR215W/Q, restricted to MHC class II. Droplet-based single cell T cell receptor (TCR) sequencing from CICR215W-specific T cell lines enabled retrieval of MHC class II-restricted CICR215W-reactive TCRs. By retroviral transduction of T cells, we established a flow cytometry-based testing platform of retrieved TCRs and were able to show the top reactive TCR against CICR215W to be shared between individual mice. Using a newly developed glioma model in MHC-humanized mice induced by CRISPR-based delivery of tumor suppressor targeting guide RNAs, we show that adoptive intraventricular transfer of CICR215W-specific TCR-transgenic T cells exert anti-tumor responses against CICR215W-expressing syngeneic gliomas.

CONCLUSION

The integration of immunocompetent MHC-humanized orthotopic glioma models in the discovery of shared immunogenic glioma neoepitopes facilitates the identification and preclinical testing of HLA-restricted neoepitope-specific TCRs for locoregional TCR-transgenic T cell adoptive therapy.

Multiphoton imaging and Raman spectroscopy of the bovine vertebral endplate

The interface between the intervertebral disc and the vertebral body is important to the discs' biomechanics and physiology, and is widely implicated in its pathology. This study aimed to explore biochemically and structurally the bony endplate, cartilage endplate and intervertebral disc, below the nucleus and below the annulus in healthy bovine tails. Multiphoton imaging and spontaneous Raman spectroscopy were employed. Raman spectroscopy provided relative quantification of mineral and matrix components across the vertebral endplate and its adjacent areas with microscopic spatial resolution. Microscopy utilising second-harmonic generation (SHG) and two-photon fluorescence (TPF) allowed for the structural identification of distinct endplate regions. The cartilage endplate was revealed as structurally distinct from both the bone and disc, supporting its biomechanical function as a transition zone between the soft and hard tissue components. The collagen fibres were continuous across the tidemark which defines the interface between the mineralised and non-mineralised regions of the endplate. Raman spectroscopy revealed gradients in phosphate and carbonate content through the depth of the endplate and also differences beneath the nucleus and annulus consistent with a higher rate of remodelling under the annulus.

Evaluation of DISORDER: Retrospective Image Motion Correction for Volumetric Brain MRI in a Pediatric Setting

BACKGROUND AND PURPOSE

Head motion causes image degradation in brain MR imaging examinations, negatively impacting image quality, especially in pediatric populations. Here, we used a retrospective motion correction technique in children and assessed image quality improvement for 3D MR imaging acquisitions.

MATERIALS AND METHODS

We prospectively acquired brain MR imaging at 3T using 3D sequences, T1-weighted MPRAGE, T2-weighted TSE, and FLAIR in 32 unsedated children, including 7 with epilepsy (age range, 2-18 years). We implemented a novel motion correction technique through a modification of k-space data acquisition: Distributed and Incoherent Sample Orders for Reconstruction Deblurring by using Encoding Redundancy (DISORDER). For each participant and technique, we obtained 3 reconstructions as acquired (Aq), after DISORDER motion correction (Di), and Di with additional outlier rejection (DiOut). We analyzed 288 images quantitatively, measuring 2 objective no-reference image quality metrics: gradient entropy (GE) and MPRAGE white matter (WM) homogeneity. As a qualitative metric, we presented blinded and randomized images to 2 expert neuroradiologists who scored them for clinical readability.

RESULTS

Both image quality metrics improved after motion correction for all modalities, and improvement correlated with the amount of intrascan motion. Neuroradiologists also considered the motion corrected images as of higher quality (Wilcoxon z = -3.164 for MPRAGE; z = -2.066 for TSE; z = -2.645 for FLAIR; all P < .05).

CONCLUSIONS

Retrospective image motion correction with DISORDER increased image quality both from an objective and qualitative perspective. In 75% of sessions, at least 1 sequence was improved by this approach, indicating the benefit of this technique in unsedated children for both clinical and research environments.

Cautionary study on the effects of pay for performance on quality of care: a pilot randomised controlled trial using standardised patients

BACKGROUND

Due to the difficulty of studying incentives in practice, there is limited empirical evidence of the full-impact pay-for-performance (P4P) incentive systems.

OBJECTIVE

To evaluate the impact of P4P in a controlled, simulated environment.

DESIGN

We employed a simulation-based randomised controlled trial with three standardised patients to assess advanced practice providers' performance. Each patient reflected one of the following: (A) indicated for P4P screenings, (B) too young for P4P screenings, or (C) indicated for P4P screenings, but screenings are unrelated to the reason for the visit. Indication was determined by the 2016 Centers for Medicare and Medicaid Services quality measures.

INTERVENTION

The P4P group was paid $150 and received a bonus of $10 for meeting each of five outcome measures (breast cancer, colorectal cancer, pneumococcal, tobacco use and depression screenings) for each of the three cases (max $300). The control group received $200.

SETTING

Learning resource centre.

PARTICIPANTS

35 advanced practice primary care providers (physician assistants and nurse practitioners) and 105 standardised patient encounters.

MEASUREMENTS

Adherence to incentivised outcome measures, interpersonal communication skills, standards of care, and misuse.

RESULTS

patient was more likely to be prescribed screenings not indicated, but highlighted by P4P: breast cancer screening (47% P4P vs 0% control, p<0.01) and colorectal cancer screening (24% P4P vs 0% control, p=0.03). The P4P group over-reported completion of incentivised measures resulting in overpayment (average of $9.02 per patient).

LIMITATIONS

A small sample size and limited variability in patient panel limit the generalisability of findings.

CONCLUSIONS

Our findings caution the adoption of P4P by highlighting the unintended consequences of the incentive system.

Employing photoluminescence to rapidly follow aggregation and dispersion of cellulose nanofibrils

Multichannel confocal spectroscopy enables tracking of time dependent, spatially resolved changes in the physicochemical environment of cellulose nanofibrils due to variation in emission intensity ratios.

Precision Health: Bringing Oral Health into the Context of Overall Health

Unprecedented advances in genomics, data science, and biotechnology have ushered in a new era of health care in which interventions are increasingly tailored to individual patients. Precision-based approaches extend to oral health, which is essential to overall health. Harnessing the full potential of precision oral health will depend on research to more fully understand the factors that underlie health and contribute to disease-including the human genome, microbiome, epigenome, proteome, and others.

Research priorities for the pan-Canadian Oncology Symptom Triage and Remote Support practice guides: a modified nominal group consensus

Introduction

The pan-Canadian Oncology Symptom Triage and Remote Support (costars) team is studying how to improve the quality and consistency of cancer symptom management.

Methods

A 1-day invitational meeting was held 24 October 2017 in Ottawa, Ontario, to review the current evidence from costars projects and to establish research priorities for a future largescale implementation study. The meeting included 36 participants who were clinicians from adult oncology, pediatric oncology, and homecare; policymakers from national, provincial, and regional organizations; researchers; and a patient. Half the day involved summarizing evidence from four costars studies and experiences with implementing the costars symptom practice guides. The second half of the day used a modified nominal group technique to generate research questions within small groups, presentation of research questions to all participants, and two rounds of voting to reach consensus on research priorities.

Results

Participants proposed 4 research categories:■ User-centred augmentation to enhance usability (for example, designing a mobile costars solution)■ Outcome measurement (for example, determining key competencies for clinicians)■ Regular renewal of costars to keep pace with evolving evidence (for example, updates for novel therapies)■ Integration into clinical practice (for example, meaningful engagement of patients and caregivers in study design).

Conclusions

Across categories, the top 3 priorities were effect on health services use, competency development, and a mobile costars solution. Future research will address identified priorities, reflecting the needs and perspectives of diverse stakeholders. Stakeholder collaboration will continue to guide our approach to operationalizing this priority research agenda.

Systematic Review of Yoga and Balance: Effect on Adults With Neuromuscular Impairment

This systematic review examines the efficacy of yoga as a neuromuscular intervention for community-dwelling populations at risk for falls to determine its utility for use in occupational therapy intervention. Populations included older adults and adults with traumatic brain injury (TBI), cerebrovascular accident (CVA), dementia and Alzheimer's disease (AD)-type dementia, multiple sclerosis (MS), and Parkinson's disease (PD). Benefits of yoga include improved posture control, improved flexibility of mind and body, relaxation, and decreased anxiety and stress. A systematic review of the literature was conducted to understand the salutary benefits of yoga for clients who are at risk for falls because of neuromuscular issues. Moderate evidence supports the use of yoga to decrease the risk for falls for community-dwelling older adults and people with CVA, dementia and AD-type dementia, and MS. Studies involving people with TBI and PD did not include strong enough evidence to be able to make a clear classification.

U.S. prevalence of endocrine therapy-naïve locally advanced or metastatic breast cancer

Background

Variations in treatment choice, or late stage at first diagnosis, mean that, despite guideline recommendations, not all patients with hormone receptor (hr)-positive locally advanced or metastatic breast cancer (la/mbca) will have received endocrine therapy before disease progression. In the present study, we aimed to estimate the proportion of women with postmenopausal hr-positive la/mbca in the United States who are endocrine therapy-naïve.

Methods

Women in the Optum Electronic Health Record (ehr) database with a breast cancer (bca) diagnosis (January 2008-March 2015) were included. Patient and malignancy characteristics were identified using structured data fields and natural-language processing of free-text clinical notes. The proportion of women with postmenopausal hr-positive, human epidermal growth factor 2 (her2)-negative (or unknown) la/mbca who had not received prior endocrine therapy was determined. Results were extrapolated to the entire U.S. population using the U.S. National Cancer Institute's Surveillance, Epidemiology, and End Results database. Results are presented descriptively.

Results

In the ehr database, 11,831 women with bca had discernible information on postmenopausal status, hr status, and disease stage. Of those women, 1923 (16.3%) had postmenopausal hr-positive, her2-negative (or unknown) la/mbca, and 70.7% of those 1923 patients (n = 1360) had not received prior endocrine therapy, accounting for 11.5% of the overall population. Extrapolating those estimates nationally suggests an annual incidence of 14,784 cases, and a 5-year limited duration prevalence of 50,638 cases.

Conclusions

A substantial proportion of women with postmenopausal hr-positive la/mbca in the United States could be endocrine therapy-naïve.

In situ chemically specific mapping of agrochemical seed coatings using stimulated Raman scattering microscopy

Providing sufficient, healthy food for the increasing global population is putting a great deal of pressure on the agrochemical industry to maximize crop yields without sustaining environmental damage. The growth and yield of every plant with sexual reproduction, depends on germination and emergence of sown seeds, which is affected greatly by seed disease. This can be most effectively controlled by treating seeds with pesticides before they are sown. An effective seed coating treatment requires a high surface coverage and adhesion of active ingredients onto the seed surface and the addition of adhesive agents in coating formulations plays a key role in achieving this. Although adhesive agents are known to enhance seed germination, little is understood about how they affect surface distribution of actives and how formulations can be manipulated to rationally engineer seed coating preparations with optimized coverage and efficacy. We show, for the first time, that stimulated Raman scattering microscopy can be used to map the seed surface with microscopic spatial resolution and with chemical specificity to identify formulation components distributed on the seed surface. This represents a major advance in our capability to rationally engineer seed coating formulations with enhanced efficacy.

Understanding the Experiences of Cancer Patients as They Transition From Treatment to Primary and Community Care: A Pan-Canadian Study of Over 13,000 Cancer Survivors

Background: Being diagnosed with cancer can be overwhelming, with many physical and emotional challenges. As needs of survivors shift from disease management to recovery, the adjustment is often not seamless. Ideally, a health care system is integrated and responsive to the needs of survivors, however, when cancer treatment is complete, they often face lingering concerns. Limited patient-reported data were available in Canada on experiences and barriers survivors face posttreatment. Aim: The Experiences of Cancer Patients in Transition study is the first national survey gathering data from cancer survivors in Canada as they transition from cancer care to the broader health care system. Methods: A survey was developed in consultation with patients/survivors, health care providers and researchers to address experiences related to physical, emotional, informational and practical needs. Ethics approvals were obtained and 10 provinces participated. Cancer survivors expected to have completed treatment within 1-3 years were identified from provincial cancer registries. Included were those aged 30+ at diagnosis of nonmetastatic breast, colorectal, prostate, melanoma or hematologic cancer; or aged 15-29 at diagnosis of any nonmetastatic cancer or metastatic testicular cancer. Despite the intention of the sampling, the final sample included some survivors diagnosed with a site other than the target sites, and some whose time since treatment was outside 1-3 years. All respondents are included in this analysis. Results are not weighted to represent the true distribution of cancer survivors. Results: From a total survey population of 40,790 Canadian cancer survivors, 33% completed the survey. The respondents were 48% male, 51% female; 2.5% were under 30 years old, 60% were 65+. 68% of respondents reported challenging periods posttreatment, with 48% of these saying that the first 6 months to 1 year were most challenging. Cancer survivors continued to live with side-effects: 87% reported physical challenges; 78% reported emotional challenges; 45% reported practical challenges. The most prevalent concerns were fatigue (68%), anxiety about cancer returning (68%) and returning to work/school (23%). Less than half of those with emotional or practical concerns received useful information (42% and 46%, respectively). 42% of respondents could not get help to address their most difficult concern. Of those who could get help, 10.7% waited a year or more. Conclusion: The results provide insight into the nature of challenges cancer survivors face, as well as needed supports and barriers faced in accessing them. There is a clear need for health systems to ensure a seamless patient experience throughout the cancer journey, for instance, through development and adoption of resources to help health care providers and their patients identify and address challenges from diagnosis through to survivorship.

A Pan-Canadian Framework for Cancer Survivorship Research

Background and context: Across all cancer types, two-thirds of Canadians diagnosed with cancer today will survive long-term, reflecting great progress in cancer detection and treatment. Many survivors, however, will experience substantial and long-term impacts of their diagnosis and treatment. Within this context, the Canadian Cancer Research Alliance (CCRA) sought to inform the cancer research funding community on how, and what kinds of research are needed, to enable research that will make a difference to patients as they move from treatment to the posttreatment phase. Aim: To develop and implement a national framework and recommendations to enable coordinated and strategic action among cancer research funders that advances cancer survivorship research in Canada in ways that improve survivors' care and experiences. Strategy/Tactics: Multiple approaches were used to inform framework development: a strategic literature review; an analysis of cancer survivorship research funding from 2005-13; and an online survey and key informant interviews from the broader stakeholder community. An Expert Panel and Patient Advisory Committee were also engaged to provide guidance and feedback. Program/Policy process: Over the course of one year, the project team and a working group of CCRA members met regularly to steer framework development. This involved activities such as developing data collection approaches and tools, reviewing data and emerging findings, and translating findings into priority areas and recommendations. In total, > 200 Canadian and international stakeholders provided input through the survey and interviews. Outcomes: Released March 2017, the Pan-Canadian Framework for Cancer Survivorship Research provides four recommendations for cancer research funders: 1) ensure ongoing and meaningful involvement of cancer survivors; 2) align funding calls with existing needs and potential for impact; 3) create opportunities for the translation of research into practice and policy; and 4) build and maintain infrastructure and expertise to advance research. Specific research priorities were emphasized across three research domains: survivors' experiences and outcomes; late and long-term effects; and models of care. The priorities ranged from investigating the mechanisms of late/long-term effects to conducting intervention research to improve psychosocial outcomes, prevent and ameliorate late effects, and improve integration of follow-up care. What was learned: A broad range of stakeholders came together to develop a national framework to maximize the impact of shared targeted research investment in cancer survivorship research. Survivors' voices were key to agreeing on definitional issues of survivorship, identifying priority research areas, and ultimately lending credibility to the resulting framework. Implementation of the framework is the next step of work for CCRA members. Planning has commenced on identifying an initial priority for joint action.

Acute-Care Hospital Use Patterns Near End-of-Life for Cancer Patients Who Die in Hospital in Canada

Background: Acute-care hospitals have a role in managing the needs of people with cancer when they are at the end-of-life; however, overutilization of hospital care at the end-of-life results in poorer quality of life and can worsen the patient's experience. Early integration of comprehensive palliative care can greatly reduce unplanned visits to the emergency department, reduce avoidable admissions to hospital, shorten hospital stays, and increase the number of home deaths as well as improve the quality of life of patients with advanced cancer. Aim: To describe the current landscape of acute-care hospital utilization near the end-of-life across Canada and indirectly examine access to palliative care in cancer patients who die in hospital. Methods: Data were obtained from the Canadian Institute for Health Information. The analysis was restricted to adults aged 18+ who died in an acute care hospital in 2014/15 and 2015/16 for nine provinces and three territories. The Discharge Abstract Database was used to extract acute-care cancer death abstracts. Data on intensive care unit (ICU) admissions includes only facilities that report ICU data. Results: Acute care utilization at end-of-life remains commonplace. In Canada (excluding Québec), 43% (48,987) of deaths from cancer occurred in acute-care hospitals, with 70% admitted through the emergency department (ED). In the last six months of life, cancer patients dying in hospital had a median cumulative length of stay ranging from 17 to 25 days, depending on the province. Between 18.1% and 32.8% of patients experienced two or more admissions to the hospital in the last month of life. The proportion of cancer patients admitted to the ICU in the last 14 days of life ranged from 6.4% to 15.1%. Patient demographics (age, sex, place of residence) and clinical factors (cancer type) were often predictors of hospital utilization at end-of-life and likely point to inequities in access to palliative and end-of-life care. Conclusion: Despite previous patient surveys indicating that patients would prefer to receive care and spend their finals days at home or in a hospice, there appears to be overuse of and overreliance on acute care hospital services near the end-of-life in Canada. The high rates of hospital deaths and admissions through the ED at the end-of-life for cancer patients may signal a lack of planning for impeding death and inadequate availability of or access to community- and home-based palliative and end-of-life care services. Acute care hospitals may have a role in managing the health care needs of people affected by cancer; however, end-of-life care should be an option in other settings that align with patient preferences. Standards or practice guidelines to identify, assess and refer patients to palliative care services earlier in their cancer journey should be developed and implemented to ensure optimal quality of life.

Measuring patient-reported outcomes to improve cancer care in Canada: an analysis of provincial survey data

Patient-reported outcomes measures (proms) are an important component of the shift from disease-centred to person-centred care. In oncology, proms describe the effects of cancer and its treatment from the patient perspective and ideally enable patients to communicate to their providers the physical symptoms and psychosocial concerns that are most relevant to them. The Edmonton Symptom Assessment System-revised (esas-r) is a commonly used and validated tool in Canada to assess symptoms related to cancer. Here, we describe the extent to which patient-reported outcome programs have been implemented in Canada and the severity of symptoms causing distress for patients with cancer. As of April 2017, 8 of 10 provinces had implemented the esas-r to assess patient-reported outcomes. Data capture methods, the proportion of cancer treatment sites that have implemented the esas-r, and the time and frequency of screening vary from province to province. From October 2016 to March 2017 in the 8 reporting provinces, 88.0% of cancer patients were screened for symptoms. Of patients who reported having symptoms, 44.3% reported depression, with 15.5% reporting moderate-to-high levels; 50.0% reported pain, with 18.6% reporting moderate-to-high levels; 56.2% reported anxiety, with 20.4% reporting moderate-to-high levels; and 75.1% reported fatigue, with 34.4% reporting moderate-to-high levels. There are some notable areas in which the implementation of proms could be improved in Canada. Findings point to a need to increase the number of cancer treatment sites that screen all patients for symptoms; to standardize when and how frequently patients are screened across the country; to screen patients for symptoms during all phases of their cancer journey, not just during treatment; and to assess whether giving cancer care providers real-time patient-reported outcomes data has led to appropriate interventions that reduce the symptom burden and improve patient outcomes. Continued measurement and reporting at the system level will allow for a better understanding of progress in proms activity over time and of the areas in which targeted quality improvement efforts could ensure that patient symptoms and concerns are being addressed.

Prognostic value of primary tumour resection in synchronous metastatic colorectal cancer: Individual patient data analysis of first-line randomised trials from the ARCAD database

Indication for primary tumour resection (PTR) in asymptomatic metastatic colorectal cancer (mCRC) patients is unclear. Previous retrospective analyses suggest a survival benefit for patients who underwent PTR. The aim was to evaluate the prognostic value of PTR in patients with synchronous mCRC by analysis of recent large RCTs including systemic therapy with modern targeted agents. Individual patient data (IPD) of 3423 patients enrolled into 8 randomised controlled trials (RCTs) with first-line systemic therapy in the ARCAD (Aide et Recherche en Cancérologie Digestive) database were analysed. The number of patients with unresected synchronous mCRC, resected synchronous mCRC and metachronous mCRC was 710 (21%), 1705 (50%) and 1008 (29%), respectively. Adjusting for age, gender, performance status (PS) and prior chemotherapy, the unresected group had a significantly worse median overall survival (16.4 m) compared with the synchronous resected (22.2 m; hazard ratio [HR] 1.60, 95% CI 1.43-1.78) and metachronous (22.4 m; HR 1.81, 95% CI 1.58-2.07) groups. Similarly, median progression-free survival was significantly worse for the unresected group compared with the synchronous resected (HR 1.31, 95% CI 1.19-1.44) and metachronous (HR 1.47, 95% CI 1.30-1.66) groups. In a multivariate analysis, the observed associations remained significant. This largest IPD analysis of mCRC trials to date demonstrates an improved survival in synchronous mCRC patients after PTR. These results may be subject to bias since reasons for (non)resection were not available. Until results of ongoing RCTs are available, both upfront PTR followed by systemic treatment and upfront systemic treatment are considered appropriate treatment strategies.

True Molecular Scale Visualization of Variable Clustering Properties of Ryanodine Receptors

Signaling nanodomains rely on spatial organization of proteins to allow controlled intracellular signaling. Examples include calcium release sites of cardiomyocytes where ryanodine receptors (RyRs) are clustered with their molecular partners. Localization microscopy has been crucial to visualizing these nanodomains but has been limited by brightness of markers, restricting the resolution and quantification of individual proteins clustered within. Harnessing the remarkable localization precision of DNA-PAINT (<10 nm), we visualized punctate labeling within these nanodomains, confirmed as single RyRs. RyR positions within sub-plasmalemmal nanodomains revealed how they are organized randomly into irregular clustering patterns leaving significant gaps occupied by accessory or regulatory proteins. RyR-inhibiting protein junctophilin-2 appeared highly concentrated adjacent to RyR channels. Analyzing these molecular maps showed significant variations in the co-clustering stoichiometry between junctophilin-2 and RyR, even between nearby nanodomains. This constitutes an additional level of complexity in RyR arrangement and regulation of calcium signaling, intrinsically built into the nanodomains.

Tracking evolution of aromatase inhibitor resistance with circulating tumour DNA analysis in metastatic breast cancer

Background

Selection of resistance mutations may play a major role in the development of endocrine resistance. ESR1 mutations are rare in primary breast cancer but have high prevalence in patients treated with aromatase inhibitors (AI) for advanced breast cancer. We investigated the evolution of genetic resistance to the first-line AI therapy using sequential ctDNA sampling in patients with advanced breast cancer.

Patients and methods

Eighty-three patients on the first-line AI therapy for metastatic breast cancer were enrolled in a prospective study. Plasma samples were collected every 3 months to disease progression and ctDNA analysed by digital droplet PCR and enhanced tagged-amplicon sequencing (eTAm-Seq). Mutations identified in progression samples by sequencing were tracked back through samples before progression to study the evolution of mutations on therapy. The frequency of novel mutations was validated in an independent cohort of available baseline plasma samples in the Study of Faslodex versus Exemestane with or without Arimidex (SoFEA) trial, which enrolled patients with prior sensitivity to AI.

Results

Of the 39 patients who progressed on the first-line AI, 56.4% (22/39) had ESR1 mutations detectable at progression, which were polyclonal in 40.9% (9/22) patients. In serial tracking, ESR1 mutations were detectable median 6.7 months (95% confidence interval 3.7-NA) before clinical progression. Utilising eTAm-Seq ctDNA sequencing of progression plasma, ESR1 mutations were demonstrated to be sub-clonal in 72.2% (13/18) patients. Mutations in RAS genes were identified in 15.4% (6/39) of progressing patients (4 KRAS, 1 HRAS, 1 NRAS). In SoFEA, KRAS mutations were detected in 21.2% (24/113) patients although there was no evidence that KRAS mutation status was prognostic for progression free or overall survival.

Conclusions

Cancers progressing on the first-line AI show high levels of genetic heterogeneity, with frequent sub-clonal mutations. Sub-clonal KRAS mutations are found at high frequency. The genetic diversity of AI resistant cancers may limit subsequent targeted therapy approaches.

Exercise for people with cancer: a systematic review

Background This systematic review was completed by the Exercise for People with Cancer Guideline Development Group, a group organized by Cancer Care Ontario’s Program in Evidence-Based Care (pebc). It provides background and guidance for clinicians with respect to exercise for people living with cancer in active and post treatment. It focuses on the benefits of specific types of exercise, pre-screening requirements for new referrals, safety concerns, and delivery models.Methods Using the pebc’s standardized approach, medline and embase were systematically searched for existing guidelines, systematic reviews, and primary literature.Results The search identified two guidelines, eighteen systematic reviews, and twenty-nine randomized controlled trials with relevance to the topic. The present review provides conclusions about the duration, frequency, and intensity of exercise appropriate for people living with cancer.Conclusions The evidence shows that exercise is safe and provides benefit in quality of life and in muscular and aerobic fitness for people with cancer both during and after treatment. The evidence is sufficient to support the promotion of exercise for adults with cancer, and some evidence supports the promotion of exercise in group or supervised settings and for a long period of time to improve quality of life and muscular and aerobic fitness. Exercise at moderate intensities could also be sustainable for longer periods and could encourage exercise to be continued over an individual’s lifetime. It is important that a pre-screening assessment be conducted to evaluate the effects of disease, treatments, and comorbidities.

Acute care hospitalization near the end of life for cancer patients who die in hospital in Canada

Acute care hospitals have a role in managing the health care needs of people affected by cancer when they are at the end of life. However, there is a need to provide end-of-life care in other settings, including at home or in hospice, when such settings are more appropriate. Using data from 9 provinces, we examined indicators that describe the current landscape of acute care hospital use at the end of life for patients who died of cancer in hospital in Canada. Interprovincial variation was observed in acute care hospital deaths, length of stay in hospital, readmission to hospital, and intensive care unit use at the end of life. High rates of acute care hospital use near the end of life might suggest that community and home-based end-of-life care might not be suiting patient needs.

Exercise for people with cancer: a systematic review

BACKGROUND

This systematic review was completed by the Exercise for People with Cancer Guideline Development Group, a group organized by Cancer Care Ontario's Program in Evidence-Based Care (pebc). It provides background and guidance for clinicians with respect to exercise for people living with cancer in active and post treatment. It focuses on the benefits of specific types of exercise, pre-screening requirements for new referrals, safety concerns, and delivery models.

METHODS

Using the pebc's standardized approach, medline and embase were systematically searched for existing guidelines, systematic reviews, and primary literature.

RESULTS

The search identified two guidelines, eighteen systematic reviews, and twenty-nine randomized controlled trials with relevance to the topic. The present review provides conclusions about the duration, frequency, and intensity of exercise appropriate for people living with cancer.

CONCLUSIONS

The evidence shows that exercise is safe and provides benefit in quality of life and in muscular and aerobic fitness for people with cancer both during and after treatment. The evidence is sufficient to support the promotion of exercise for adults with cancer, and some evidence supports the promotion of exercise in group or supervised settings and for a long period of time to improve quality of life and muscular and aerobic fitness. Exercise at moderate intensities could also be sustainable for longer periods and could encourage exercise to be continued over an individual's lifetime. It is important that a pre-screening assessment be conducted to evaluate the effects of disease, treatments, and comorbidities.

Osimertinib benefit in EGFR-mutant NSCLC patients with T790M-mutation detected by circulating tumour DNA

Background

Approximately 50% of epidermal growth factor receptor (EGFR) mutant non-small cell lung cancer (NSCLC) patients treated with EGFR tyrosine kinase inhibitors (TKIs) will acquire resistance by the T790M mutation. Osimertinib is the standard of care in this situation. The present study assesses the efficacy of osimertinib when T790M status is determined in circulating cell-free tumour DNA (ctDNA) from blood samples in progressing advanced EGFR-mutant NSCLC patients.

Material and methods

ctDNA T790M mutational status was assessed by Inivata InVision™ (eTAm-Seq™) assay in 48 EGFR-mutant advanced NSCLC patients with acquired resistance to EGFR TKIs without a tissue biopsy between April 2015 and April 2016. Progressing T790M-positive NSCLC patients received osimertinib (80 mg daily). The objectives were to assess the response rate to osimertinib according to Response Evaluation Criteria in Solid Tumours (RECIST) 1.1, the progression-free survival (PFS) on osimertinib, and the percentage of T790M positive in ctDNA.

Results

The ctDNA T790M mutation was detected in 50% of NSCLC patients. Among assessable patients, osimertinib gave a partial response rate of 62.5% and a stable disease rate of 37.5%. All responses were confirmed responses. After median follow up of 8 months, median PFS by RECIST criteria was not achieved (95% CI: 4-NA), with 6- and 12-months PFS of 66.7% and 52%, respectively.

Conclusion(s)

ctDNA from liquid biopsy can be used as a surrogate marker for T790M in tumour tissue.

Exercise for people with cancer: a clinical practice guideline

BACKGROUND

Development of this guideline was undertaken by the Exercise for People with Cancer Guideline Development Group, a group organized by Cancer Care Ontario's Program in Evidence-Based Care (pebc). The purpose of the guideline was to provide guidance for clinicians with respect to exercise for patients living with cancer, focusing on the benefits of specific types of exercise, recommendations about screening requirements for new referrals, and safety concerns.

METHODS

Consistent with the pebc's standardized approach, a systematic search was conducted for existing guidelines, and systematic literature searches were performed in medline and embase for both systematic reviews and primary literature. Content and methodology experts performed an internal review, which was followed by an external review by targeted experts and intended users.

RESULTS

The search identified three guidelines, eighteen systematic reviews, and twenty-nine randomized controlled trials with relevance to the topic. The present guideline provides recommendations for the duration, frequency, and intensity of exercise appropriate for people living with cancer. It also provides recommendations for pre-exercise assessment, safety concerns, and delivery models.

CONCLUSIONS

There is sufficient evidence to show that exercise provides benefits in quality of life and muscular and aerobic fitness for people with cancer both during and after treatment, and that it does not cause harm. The present guideline is intended to support the Canadian Society for Exercise Physiology's Canadian physical activity guidelines. The recommendations are intended for clinicians and institutions treating cancer patients in Ontario, and for policymakers and program planners involved in the delivery of exercise programs for cancer patients.