Evaluation of Routinely Measured Patient-reported Outcomes in Hemodialysis Care

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:

• To determine if there is a difference in patient-reported experience and other outcomes induced by a condition-specific (ESAS-r: Renal /IPOS-Renal) versus a generic (EQ-5D-5L) PROM;
• To determine the effects of routinely measuring and reporting the ESAS-r: Renal/IPOS-Renal and/or the EQ-5D-5L on the clinical management of symptoms;
• To determine the effects of routinely measuring and reporting the ESAS-r: Renal /IPOS-Renal and/or the EQ-5D-5L on overall HRQL;
• To determine the effects of routinely measuring and reporting the ESAS-r: Renal/IPOS-Renal and/or the EQ-5D-5L on symptom burden, mental health outcomes and healthcare utilization;
• To determine the cost-effectiveness of routinely measuring the ESAS-r: Renal/IPOS-Renal and/or the EQ-5D-5L for patients with kidney failure requiring hemodialysis;
• To explore the perspectives and experience of patients and clinicians with routine measurement and reporting of PROMs in clinical practice.

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:

• Group 1: Completes disease-specific PROM
• Group 2: Completes generic PROM
• Group 3: Completes both PROMs
• Group 4: Usual care; does not complete any of the PROMs (control)

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

• The unit provides chronic in-center hemodialysis;
• Hemodialysis clinicians are willing to review individual patients' routinely collected ESAS-r: Renal or IPOS-Renal and/or EQ-5D-5L as part of routine patient assessment;

Exclusion criteria

• The unit is unable to administer the ESAS-r: Renal or IPOS-Renal and EQ-5D-5L to in-centre hemodialysis patients as part of clinical workflow to all possible patients;
• The unit is part of a long-term care facility
• There are 5 or fewer patients treated at that unit
• Lack of WiFi connectivity (Alberta only)

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:

• The disease-specific PROM group: The disease-specific PROM will be administered every 2 months to all patients able to complete the instrument for a period of 12 months. The PROMs results will be reported back to the patient, and patients will be prompted to follow-up with their care providers if they provide a positive response to any of the symptoms assessed by the PROM. The PROMs results will also be printed in a report form and added to the patient's medical chart for review by clinicians. The report will display each patient's most recent results in comparison with their previous results, and in comparison with the general dialysis population. The PROMs report will be accompanied by treatment aids for all symptoms.
• The generic PROM group: The generic PROM will be administered every 2 months to all patients able to complete the instrument for a period of 12 months. The PROMs results will be reported back to the patient, and patients will be prompted to follow-up with their care providers if they provide a positive response to any of the symptoms assessed by the PROM. The PROMs results will also be printed in a report form and added to the patient's medical chart for review by clinicians. The report will display each patient's most recent results in comparison with their previous results, and in comparison with the general dialysis population. The PROMs report will be accompanied by treatment aids for all symptoms. The proposed generic PROM is the EQ-5D-5L.
• The disease-specific and generic PROM group: The disease-specific and generic PROMs will be administered every 2 months to all patients able to complete the instrument for a period of 12 months. The PROMs results will be reported back to the patient, and patients will be prompted to follow-up with their care providers if they provide a positive response to any of the symptoms assessed by the PROM. The PROMs results will also be printed in a report form and added to the patient's medical chart for review by clinicians. The report will display each patient's most recent results in comparison with their previous results, and in comparison with the general dialysis population. The PROMs report will be accompanied by treatment aids for all symptoms.
• The control or 'usual care' group: Patients in this group will follow usual care as provided in the dialysis unit and will not complete any PROM; however, all the treatment aids will be made available for clinicians in this study group during the trial period.

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

• Undergoing hemodialysis within an eligible in-centre dialysis unit in Alberta or Ontario
• 18 years or older at the start of the study
• Willing and able to complete the PROMs as part of the trial

Exclusion criteria

• Cognitive impairment present
• Undergoing acute dialysis or transiently dialyzing in the unit