Improving substance use treatment trajectories for men who have sex with men

British Columbia is currently in the process of developing and implementing new evidence-based policies and clinical reforms to address problematic substance use, including new: (i) pharmacotherapy approaches (e.g., replacement therapies); (ii) clinical practice guidelines; and (iii) integrated service delivery models of care. While men who have sex with men (MSM) represent a key group with historically high levels of substance use disorder and subsequent social and health-related sequelae (e.g., increased rates of HIV and sexually transmitted and blood-borne infections), there remains a gap in our knowledge about how best to design and implement services for today's generations of various sub-groups of MSM who use drugs (e.g., MSM who are: young; Indigenous; economically deprived).

Dr. Knight's five-year population health research program will adapt health policy and service delivery practices to improve substance use treatment trajectories for key groups of MSM who use drugs and are at risk for severe health and/or social consequences (i.e., the criteria for substance use disorder, as defined under DSM-V criteria). The aim will be to identify the most efficacious and scalable combinations of strategies to adapt interventions that respond to MSM's individual needs and broader social and structural conditions. This approach to implementation science offers a way to go beyond describing the problem and to focus on building an evidence base for implementing and adapting context-sensitive and population-specific solutions into routine policy and practice.

With collaborators representing the BC Ministry of Health, Vancouver Coastal Health, BC Centre for Disease Control and YouthCO HIV/Hep C Society and the BC Centre for Excellence in HIV/AIDS, as well as through the engagement of the BC Centre on Substance Use's Community Advisory Board, Dr. Knight's findings will be used to inform the development of policies (including clinical and provincial guidelines) to effectively scale up and integrate services that have the capacity to improve substance use treatment trajectories for MSM. Contributions to new knowledge will include the identification of the individual, social and structural factors shaping MSM's ability to reduce problematic drug use and prevent severe health and social outcomes (e.g., HIV and/or Hep C). Study outputs will also be assessed at an annual Stakeholder Workshop in which recommendations will be developed and refined for clinical and provincial guidelines.

Innovative addiction research program: Addressing polysubstance use

British Columbia (BC) faces a mental health and addiction crisis with an estimated cost of $100 million annually. In April 2016, a public health emergency was declared due to an alarming increase in opioid-related overdose deaths in recent years.

People who use illicit drugs (PWUD) bear a great burden of preventable morbidity and mortality from drug overdoses as well as other comorbidities including mental disorders and infectious diseases. While opioid agonist therapies (OAT) have proven effective in reducing heroin use, concomitant use of opioids and stimulant drugs (e.g., heroin and cocaine) is common among PWUD. Furthermore, recent research has suggested that many PWUD also suffer from untreated chronic pain, which may be driving prescription opioid (PO) misuse among this population. However, little is known about patterns of concomitant use of illicit opioids, POs and stimulants, and how OAT and other health services may serve to mitigate potential harms associated with such polydrug use. Currently, no approved pharmacotherapies exist for stimulant use disorder, necessitating urgent research effort in this area.

Dr. Hayashi's research will inform policies, programs and clinical practice to reduce harms associated with polydrug use. The primary research objectives are:

  • To investigate and address the impact of PO misuse, untreated chronic pain and concomitant opioid and stimulant use on patterns of drug-related harm.
  • Evaluate "naturally occurring" interventions and policy changes (i.e., new opioid addiction-related services and Vancouver Coastal Health's Downtown Eastside Second Generation Strategy) that are relevant to polydrug users.
  • Evaluate the efficacy of a novel pharmacotherapy to treat polydrug users. 

The research will employ vast longitudinal behavioural and biological data collected since 1996 via three ongoing prospective cohort studies of over 3000 PWUD in Vancouver. The findings are expected to inform care development and overdose prevention efforts for a high needs population in BC. One objective will involve implementing a clinical trial to evaluate whether an amphetamine-based medication reduces powder/crack cocaine use among 130 patients on OAT, who have both opioid and cocaine use disorders. If the study medication proves effective, Dr. Hayashi's research will potentially contribute to the identification of the first proven medication for cocaine addiction.

Incentivizing the delivery of sustainable care of chronic diseases in Canada: Case studies in musculoskeletal disease

Concerns about the sustainability of publicly funded health systems and the rising cost of care abound, yet there is little research that explores health care efficiency. Simple cost-saving exercises (i.e. cutting services) may risk harming patients, while more sophisticated, efficiency-saving approaches aim to provide health care at a greater benefit per unit of cost. Encouraging quality and value of health care delivery, whilst reducing waste, is also an indirect way to control health care costs. Undertreatment (failure to use best available care), overtreatment (treatment contrary to best-available evidence or preferences of patients), and poor coordination of care are three key clinical sources of waste. Many large-scale schemes aim to incentivize better health care, but show mixed results.

Dr. Harrison’s research will translate aspects of successful schemes and inform sustainable health care provision in Canada, focusing on musculoskeletal (MSK) diseases as they have been central to successful schemes. MSK diseases affect 11 million Canadians, and contribute hugely to the economic burden of disease in Canada. They have extensive impacts on people’s lives, including their health-related quality of life, ability to work, financial situation and reliance on the health care system. Additionally, high quality care of rheumatic disease requires early access to treatments which are often complex and considerably different from one another. Therefore, it is increasingly recognized that patients need coordinated, multidisciplinary support and care.

Dr. Harrison’s program will encompass policy-focused health economics and outcomes research to inform the design of financial and non-financial incentives to improve the efficiency of health care delivery.


End of Award Update: September 2022

Most exciting outputs

The project allowed me to explore whether a change to introduce a billing code for multidisciplinary care in rheumatology changed the experience of patients visiting rheumatologists in BC. We found that rheumatologists who used multidisciplinary care were able to expand services for patients.

 

Impacts so far

Our work adds to the evidence around incentives for multidisciplinary care in chronic disease. This will help inform future policy decisions.

 

Next steps

I continue to work on the evaluation of incentives and changes in policy for health care. I am currently co-leading a project evaluating the biosimilars initiative in BC.

 

Useful links

Improving the implementation and impact of evidence-based health promotion interventions in real world settings

Findings from health promotion research that could help Canadians live healthy lifestyles are often not applied in practice. This gap between health promotion research and health promotion practice is particularly concerning for people with spinal cord injury (SCI). Despite people with SCI's urgent need for interventions that respect their unique challenges and barriers to health behaviour change, there are very few health promotion interventions designed for people with SCI. To ensure health promotion research improves the health of all Canadians, there is an urgent need to improve the use of health promotion research in practice.

The aim of this five-year knowledge translation research program is to examine methods for improving the use of health promotion research in real-world practice. Given the lack of health promotion interventions for people with SCI, this research program will examine how we can improve the use of health promotion evidence to enhance the health of people living with SCI. 

Dr. Gainforth will examine how successful and unsuccessful practitioners apply health promotion techniques when promoting healthy behaviours to people with SCI and develop the first evidence-based guidelines, tools and interventions to improve knowledge translation partnerships between researchers and members of the SCI community. Lessons learned from practitioners will be used to develop and test tools and interventions to help other practitioners successfully promote healthy behaviours to people with SCI.

Ultimately, this research will develop best practices for building capacity among researchers and community members to conduct and share research in partnership. In turn, findings and the approach can support other research teams aiming to use partnerships to conduct and share research that enhances the health of marginalized groups.

Breaking the link between obstructive sleep apnea and cardiovascular disease using a translational experimental approach

Previous research by Dr. Foster has illustrated that angiotensin receptor blockade can abolish the blood pressure response to intermittent hypoxia (IH), reduce oxidative stress and increase nitric oxide bioavailability. In addition, recent work suggests heightened peripheral neurovascular transduction in response to baroreflex activation.

Building on this work, over the next 5 years Dr. Foster will focus on the cardiovascular consequences of IH associated with obstructive sleep apnea (OSA). Since OSA and IH directly contribute to the morbidity and mortality of hypertension, myocardial infarction and stroke, there is an urgent need to establish a treatment capable of protecting OSA patients from IH-induced cardiovascular disease (CVD).

Dr. Foster's research will elucidate the mechanisms by which AT1R antagonists or statins could protect OSA patients from IH-induced CVD. By breaking the link between CVD and OSA, and capitalizing on the pleiotropic properties of angiotensin receptor blockers and statins, this research is ultimately intended to generate a novel treatment. This knowledge will provide the necessary proof of concept for large-scale clinical trials, and will help reduce stress on health care infrastructure and improve the health, quality of life and longevity of Canadians.

Examining the addiction treatment and recovery trajectories of youth in British Columbia’s Lower Mainland

Addiction treatment is critical to addressing the tremendous health and social harms experienced by street-involved youth (SY) with substance use disorders (SUD), including the current fentanyl overdose crisis. To date, the addiction treatment and recovery landscape in British Columbia (BC) reflects a mix of regulated, publicly funded programs (e.g., methadone and Suboxone programs, residential detoxification and treatment programs), as well as unregulated privately and publicly funded programs (e.g., informal recovery houses, Twelve Step programs) that span acute and community healthcare settings. Sustained drug use cessation is an important goal of these programs. However, it is recognized that for many youth their addiction treatment trajectories include periods of engagement, dis-engagement, and re-engagement with various programs, as they move in and out of periods of relapse, increases and reductions in drug use, and drug use cessation. The recovery trajectories of youth who remain largely outside of healthcare settings are also often characterized by this kind of dynamic process.

Dr. Fast will examine and inform ongoing efforts in the Lower Mainland to create a more comprehensive and coordinated system of addiction services for youth, and generate new knowledge to optimize the integration of evidence based addiction treatment across the acute and community healthcare settings accessed by SY. Integrating the methods and perspectives of medical anthropology and implementation science she will advance understandings of how individual, interpersonal, organizational, and structural factors operating in, but also across, acute and community health care settings in the Lower Mainland shape the delivery, uptake, and outcomes of youth addiction treatment interventions.

A nuanced, ethnographic understanding of these places and contexts will inform policy and practice recommendations to improve the addiction services system for adolescents and young adults so that it meets the needs of SY, pursuant to the goal of addressing SUD and the overdose crisis among this population. Dr. Fast will employ innovative and participatory arts-based methods to generate and disseminate policy and practice recommendations that align with the complex realities and everyday lived experiences of SY.

Opioid addiction research program to improve prescribing practices and reduce overdose

Canada is amid an opioid crisis, with six or seven deaths a day due to opioid overdose. Prescription opioid misuse can also transition to illicit opiate and intravenous drug use, substantially increasing the risk for overdose and blood-borne infections. Rates of overdose death due to counterfeit fentanyl have also risen and represent a growing crisis in most regions in Canada, with British Columbia (BC) being particularly hard hit. Half of the 800 anticipated overdose deaths for 2016 in BC are expected to involve fentanyl.

Dr. Fairbairn’s research will:

  • Address the effectiveness of a randomized controlled trial to evaluate a designated opioid prescriber intervention using BC’s centralized prescription network to reduce inappropriate opioid dispensation and overdose risk.
  • Inform overdose prevention strategies by characterizing the inter-relationships between medication prescribing patterns and patterns of illicit drug use.
  • Evaluate the longitudinal impacts of new overdose prevention initiatives and addiction treatment guidelines on overdose outcomes.

This research directly responds to BC’s recent declaration of a public health emergency, Health Canada’s urgent call to develop strategies to tackle the overdose epidemic, and the global challenge of prescription opioid abuse by generating evidence for safer prescribing practices and informing and broadening the evidence base for the treatment of opioid addiction.

Development and assessment of strategies to promote social integration into new communities

Social connections and social support networks are essential for physical and mental health. In fact, recent research suggests that how long people live is better predicted by the quality of their social relationships and how well they are integrated in their community, than it is by how much they smoke and drink, or whether they are obese. Loneliness, on the other hand, is linked to negative health outcomes including depression, poor sleep quality, more hospital and doctor visits, and compromised immune system functioning.

This research will focus on the processes involved in successful social interactions with strangers, friendship formation, and social integration. It will focus on questions including: Why do some people have a harder time making friends than others? How do people develop a sense of belonging when they move to a new community? How do the size of someone's social networks, and the availability of social support, influence specific health outcomes like immune function and cardiovascular disease risk? Given that Canadian culture is characterized by high rates of immigration and residential mobility, developing effective evidence-based strategies for combating loneliness and social isolation can have direct benefits for individuals and communities alike.

Knowledge translation activities for this research will include active engagement with broad audiences of university administrators and advisors, student mental health groups, and community members. Dr. Chen will produce reports for groups directly involved in promoting community social integration efforts, whilst serving as a scientific/faculty advisor for initiatives to disseminate research findings directly to the public. She will use research findings to develop specific interventions to facilitate friendship formation and social integration, targeted to individuals who are experiencing social disruptions or difficulty transitioning into new environments. Enhanced knowledge about these topics is expected to contribute to the public good and welfare of British Columbians.

Cardiovascular genetics: Phenotypes, genotypes and cellular mechanisms

Cardiovascular disease (CVD) is the leading cause of death of Canadians, and is strongly influenced by genetic factors. Integrating basic biomedical research into how specific gene variants influence the function of cardiac cells, with clinical research of patients and families with early onset CVD, will lead to important advances in translating the results of genetics research to improved care for patients and families with CVD.

Advancing Healthcare Diagnostics for Neurodegenerative Disorders

Alzheimer’s disease causes progressive neurological decline and substantially decreases the quality of life of patients and their caregivers. In 2011, 747,000 Canadians had Alzheimer’s disease or another form of dementia. With a rapidly aging population, this figure is projected to rise to 1.4 million by 2040, costing $293 billion/year, thus representing an urgent and rapidly growing healthcare issue.

Early and accurate diagnosis of Alzheimer’s disease is critical because timely access to healthcare and community services has the potential to slow disease progression and improve quality of life. Current approaches for diagnosis rely on traditional imaging tests and observation of the signs and symptoms of the disease. Adding the measure of proteins found in cerebrospinal fluid (biomarkers) helps doctors correctly identify the disease. This project aims to create better tools for timely diagnosis of Alzheimer’s disease and other dementias, and make these tools easily accessible to those that need them.

This program of research will develop a comprehensive understanding of how biomarkers for Alzheimer’s disease impact clinical decision making and healthcare costs. It will develop an Alzheimer’s disease diagnostic tool and with input from patients, their families, their doctors and other relevant stakeholders, address barriers to uptake and use in the healthcare system. In addition to Alzheimer’s disease, this research will investigate development of diagnostic technologies for related disorders such as frontotemporal dementia and Lewy body dementia.

The ultimate goals of this work are to build a diagnostic platform for early detection and diagnosis of cognitive impairment; establish BC as a leader in neurodegenerative diagnostics; and ease the psychological, physical and financial burdens for people with dementias and their families.