Multidisciplinary Support to Access Living Donor Kidney Transplant (MuST AKT)

Living donor kidney transplantation (LDKT) is the optimal treatment for end-stage kidney disease patients, offering patients longer survival, a better quality of life, and cost savings for the health system when compared to dialysis. Outcome data shows that only 16% of Canadians on dialysis survive past 10 years, whereas up to 74% of Canadians with a kidney transplant have a functioning kidney after 10 years. The ideal treatment trajectory is to avoid dialysis entirely and receive a living donor transplant prior to dialysis (pre-emptive), which unfortunately only occurs in 10.5% of eligible patients.

Patients with kidney failure report barriers to LDKT, including navigating the system, addressing their concerns and fears, identifying and approaching potential living donors, keeping motivated, and then utilizing the ones unable to donate as advocates. To address these barriers and increase LDKT, the MuST AKT intervention has been developed. MuST AKT is designed to provide personalized support and enable potential kidney transplant recipients to communicate their story and desire for a LDKT with their personal and broader social networks.

A definitive Randomized Controlled Trial is proposed to test the effectiveness of the MuST AKT intervention to increase LDKT outcomes in a larger sample, before scaling to and implementing across Alberta.

Primary Objective:

The primary objective of this study is to examine the effectiveness of the MuST AKT intervention to increase living donor kidney transplantation outcomes.

Hypothesis:

The MuST AKT intervention will increase living donor kidney transplant outcomes compared to the control condition (standard care).

Additional Objectives:

The secondary objective is to evaluate patient outcome improvement by collecting Patient Reported Outcome Measures (PROMs) to assess the proportion of patients who find at least one potential living donor.

The tertiary objective is to evaluate patient experience by collecting i) qualitative interviews and ii) Patient Reported Experience Measures (PREMs) to determine whether this program would be recommended to other patients and to what extent this program helped find a potential living kidney donor.

The quaternary objective is to evaluate the feasibility of this program by assessing consent rate, attendance, adherence, drop-out, intervention fidelity, and cost-effectiveness.

Research Methods/Procedures:

This is a definitive parallel randomized controlled trial with a qualitative interview component. The intervention condition will receive a multidisciplinary, tailored person-centered intervention over three months (MuST AKT program), and the control condition will receive the current standard of care (social worker assessment).

Patients who have been referred for kidney transplantation assessment in Edmonton will be contacted during a standard care kidney transplant education session or over the telephone if the education has been completed. Consenting participants meeting the eligibility requirements will be contacted via telephone by a member of the research team to confirm their enrollment and complete a baseline questionnaire to assess socio-demographics and PREMs. Then participants will be randomized to either the intervention or control condition, using predetermined randomly-generated (by Stata MP 15·1) permuted blocks of 4 and 6. Assignment to condition will be concealed by the database up until the point of assignment. All group and individual sessions will be held either virtually or in-person, at the participants discretion, as long as there are no public health (e.g., COVID-19) restrictions that would prevent in-person visits. If there are public health restrictions that prevent in-person visits, the sessions will be held virtually. Consent rate, attendance, adherence, drop-out, and intervention fidelity will be tracked during enrollment and throughout the duration of the intervention. Upon completion of the intervention (or usual care), participants will complete a post-intervention questionnaire to assess PREMs. Participants in the MuST AKT intervention condition who complete the intervention sessions will be contacted to participate in a semi-structured qualitative interview over the telephone (approximately 45 minutes) within two weeks of their last session. Participants who complete the MuST AKT intervention condition but have not had a potential donor come forward after 12 months of the last session will be contacted to complete a semi-structured interview over the telephone (approximately 20 minutes) to explore factors contributing to their lack of success. Kidney transplant status will be tracked for a period of 24 months post-intervention.

The cost-effectiveness of the intervention will be evaluated after participant data collection is complete (24 months), and values obtained from study records (cost of developing and delivering intervention) and previously published estimates of living donor work-ups and transplantation costs, and cost-savings due to forgoing of alternative therapies (i.e., dialysis).

Intervention Condition: MuST AKT is a multidisciplinary, tailored person-centered intervention aimed to support participants identification of potential donors and communication with their social network. An introductory session will be followed by three sessions (all one-on-one) and a final session 4 with participants family and friends (potential donors and advocates) identified in session 1. The introductory session will be approximately 60 minutes and the remaining intervention sessions will be approximately 90 minutes. Sessions will be facilitated by a trained licensed social worker, a coordinator, or a media expert, with extra training in kidney disease, transplantation, living kidney donation, counselling and interviewing, and patient confidentiality.

Usual care (control condition): In the control condition, participants will go through the current standard of care, which is a social worker assessment. If the intervention is successful in the definitive RCT and approved by Alberta Health Services as the 'new standard of care', people in control condition will be contacted and given the option to participate in the MuST AKT intervention.

Additional Interviews with separate informed consent procedures: Friends and family members of participants taking part in session 4 will be invited to participate in a sub-study, which aims to explore their experiences of group session 4. Those expressing interest will be contacted by a qualitative researcher via telephone, and following informed consent, will participate in a semi-structured interview lasting approximately 20 minutes.

Plan for Data Analysis:

Quantitative: All analyses will be completed in Stata/MP 17.0 (www.stata.com), using an intention-to-treat approach. Fisher's exact tests (for dichotomous outcomes), and t-tests or Wilcoxon rank-sum tests (for continuous outcomes data), will be used as appropriate. Unadjusted proportions, means or medians and their differences along with 95% confidence intervals will be reported. P <0.05 will be considered statistically significant for all quantitative outcomes. Residual, leverage and influence diagnostics will be examined.

Our primary analyses (which includes primary and secondary outcomes) will pool data from both the pilot and the current trials. In secondary analyses, we will generate within trial results to investigate potential heterogeneity of intervention delivery.

Qualitative: Data will be analyzed in NVivo-12 by experienced qualitative researchers independent of the study, using deductive thematic analysis. A coding framework will be established based on the interview guides and updated to include additional themes that emerge from the data. The coding framework will be validated by two coders, any disagreements will be resolved through discussion.