Evaluation of Routinely Measured PATtient Reported Outcomes in HemodialYsis Care (EMPATHY) Trial: A Cluster Randomized Controlled Trial
Evaluation of Routinely Measured PATtient Reported Outcomes in HemodialYsis Care (EMPATHY) Trial: A Cluster Randomized Controlled Trial
Patient-reported outcome measures (PROMs) are reports coming directly from patients about how they function or feel in relation to a health condition and its therapy, without interpretation of the patient's responses by a clinician or anyone else. PROMs capture patients' experiences of symptoms and impact of disease on functioning and can support clinicians to monitor disease progression and facilitate patient-centered care.
The EMPATHY trial will determine the effects of routinely measuring PROMs on the experiences of patients undergoing hemodialysis in Alberta and Ontario. In this study, two kinds of PROMs will be used: a disease-specific PROM and a generic PROM. The disease-specific PROM focuses on health symptoms related to kidney failure and the generic PROM focuses on general health.
In the trial, patients will be invited to complete the PROMs, and results of the measures will be linked to treatment aids for clinicians, providing specific information on how symptoms can best be managed. These care pathways will also be available to patients not receiving PROMs. The main outcome of this study will be patient-clinician communication, which will be assessed using a questionnaire called the "Communication Assessment Tool". In addition to assessing the effect of using these questionnaires on patient-provider communication, this study will allow us to explore whether their use affects patient management and symptoms, use of healthcare services, and the overall cost of implementing these questionnaires in clinical practice.
Each dialysis unit (including all patients) will be randomized to one of four study groups: 1) Patients will complete the disease-specific PROM; 2) Patients will complete the generic PROM; 3) Patients will complete both the disease-specific and generic PROM; 4) Patients will receive usual care.
Clinicians (in dialysis units randomized to PROMs, groups 1-3) will receive the results of the questionnaires completed by the patients. This is intended to trigger the clinician to ask the patient about certain symptoms if any exist. All clinicians in all study groups will have access to the clinical "treatment aids", which are tools that help identify and manage certain symptoms that patients might have. For example, people with severe itching will be cared for based on a step-wise treatment algorithm. Patients will also receive a report of their questionnaire(s) results, with an explanation of what it means.
The overall aim of this study is to explore the usefulness of integrating PROM assessments in the clinical management of hemodialysis patients. The specific objectives are as follows:
Primary objective: to determine the effects of routine measurement and reporting to clinicians of PROMs, namely, the Edmonton Symptom Assessment System- revised: Renal (ESAS-r: Renal) or the Integrated Palliative care Outcome Scale - Renal (IPOS-Renal) and/or the EQ-5D-5L on patient-reported experience, particularly patient-clinician communication, measured by the Communication Assessment Tool (CAT), for patients with kidney failure requiring hemodialysis.
Secondary objectives:
Study Design:
The investigators propose the use of a cluster RCT design to avoid any potential contamination between the study groups. This study is a pragmatic RCT that will involve the random allocation of clusters (i.e., dialysis units) into four groups:
Treatment aids for symptoms assessed by the PROMs will be made available for all clinicians in all study groups. Details about intervention and treatment aids are provided below.
Hypotheses:
The investigators hypothesize that the routine measurement and reporting of PROMs will lead to improvement in communication between CKD patients and clinicians in dialysis units in Canada compared to usual care. The investigators also hypothesized that this will lead to better symptom and disease management, and improvement in mental health and quality of life. Furthermore, the investigators anticipate that this intervention will be cost-effective and will be acceptable and feasible in the dialysis units' environment.
Setting and Population:
All available dialysis units from Alberta (Alberta Kidney Care - North (AKC-N) and Alberta Kidney Care - South (AKC-S)) and selected units in Ontario (Ontario Renal Network - ORN) will be invited to participate in this study. The unit of randomization will be the dialysis units within AKC-N/AKC-S/ORN, not dialysis programs or individual patients. Randomization will be done within each renal program (AKC-N/AKC-S/ORN) to ensure that units from all programs are represented in all study groups.
Dialysis Unit Eligibility Criteria:
Inclusion Criteria:
Exclusion Criteria:
Inclusion/exclusion criteria for individual patients: All patients undergoing hemodialysis who are 18 years or older at the start of the study, and are willing and able to complete the PROMs as part of the trial will be eligible to participate in this study. Patients with cognitive impairment, undergoing acute dialysis, or transiently dialyzing in the unit are not included.
Interventions:
Since blinding is not feasible in this trial, it will be conducted as an open trial. Consequently, research staff, clinicians, and all patients will be aware of group allocation; cluster randomization is intended to minimize potential biases associated with an open trial design. Eligible dialysis units will be randomly allocated to one of 4 study groups:
Treatment aids:
Treatment aids are assessment and treatment resources developed by expert clinicians for the management of certain symptoms and disorders. Each renal program developed treatment aids specific to symptoms assessed by the ESAS-r: Renal or IPOS-Renal (e.g., itchiness, restless leg syndrome, nausea) and the EQ-5D-5L (e.g., pain, anxiety/depression). Treatment aids are intended to support clinicians in the assessment and management of symptoms identified by these PROMs and will be made available for all clinicians at all study sites regardless of to which group they are randomized.
Patient-facing materials are also provided to patients, to help them better understand the reasons why their symptom/problem may have developed, treatment options that might be considered, as well as self-care activities they can undertake to alleviate the symptom or problem.
Data Analysis:
The primary analysis will assess change in the overall CAT score, between study groups from baseline to 12 months using a linear mixed-effects model, with the mean CAT for the dialysis unit at baseline as a fixed effect covariate, and dialysis unit (cluster) as a random intercept. Our primary analytic plan will be based on changes in mean CAT score at the unit level, from baseline to 12 months. The primary analysis will be based on all of the PROMs intervention groups combined compared to the control group as fixed effects. As one of our secondary objectives, assessing differences between specific and generic PROMs, we will compare the individual interventions groups (i.e., ESAS-r: Renal /IPOS alone, EQ-5D-5D alone, or the combination) to the control group.
We will also compare the proportion of patients reporting symptoms/problems on the ESAS-r: Renal or IPOS-Renal and EQ-5D-5L and the management of such symptoms/problems. Through clinical records, we will link PROMs scores with the use of specific treatments as per the treatment aids. We will obtain medication lists, allied health referrals, and chart notes to capture how symptoms are being treated. Each renal program (i.e., AKC-N, AKC-S, and ORN) will be analyzed separately then we will use meta-analyses to analyze the data from each renal program.
Economic Evaluation:
A cost-effectiveness analysis will be employed of the different study groups, compared to the usual care group as the reference case. The incremental costs and incremental QALYs of the different interventions relative to the usual care group will be compared to calculate incremental cost per QALYs gained ratios. Costs will be estimated for patients in the different study groups, including treatments received by patients, taking the perspective of the provincial health care system, personnel costs for training and delivery of the PROMs assessments, and subsequent health care utilization for patients in each of the study groups. Health care utilization will be estimated through linkage with provincial administrative health care databases at the individual patient-level. Costs associated with the provision of the intervention, including training and nursing time, will be estimated through observations for time and valued using standard staffing wage scales for the respective geographic regions. QALYs will be calculated based on changes in the EQ-5D-5L index score, using the Canadian preference weighting.
Study Period:
The study will be implemented over 48 months. The first 6 months will involve the administrative approvals, completing ethics requirements, training of clinicians on the use of PROMs; the following 18 months will involve trial implementation including assessments and interventions. The last 12-24 months will involve compiling the data from all study sites, data analysis and reporting of results.
Inclusion criteria:
Exclusion criteria: