Nurse-led Physician-supported Care for Patients With Chronic Kidney Disease and Multimorbidity

Study objectives:

1. To evaluate if a nurse-led model of care (INTEGREAT-CKD), in comparison to the standard of care (physician-led care), improves self-management skills, quality of life, and health literacy in patients with advanced CKD. 2. To assess if a nurse-led physician-supported consultation model of care, in comparison to the standard of care, optimizes the attainment of clinical targets following CKD best practice guidelines. 3. To assess if health resource utilization is cost-effective for complex CKD patients cared for by a nurse-led physician-supported consultation model of care compared to the standard of care.

Study design This study is a dual-centre two-arm, open-label randomized controlled trial (RCT). Patients are randomized with a one-to-one allocation into two parallel groups. Participants with advanced CKD referred to the tertiary institutions are randomized to either the control group (physician-led standard of care consultation model) or the experimental (intervention) group, which consists of enrolment in the INTEGREAT-CKD programme. INTEGREAT-CKD is a six-month programme consisting of an outpatient nurse-led consultation model, delivered by a team of CKD-trained Advanced Practice Nurses (APNs) and community-based nurses. Participants are reviewed in person at a 3-monthly interval by a CKD-trained APN independently. The CKD-trained APN's practice is supported by adherence to a protocol-based and algorithmic set of guidelines co-written by the CKD-trained APN and nephrologist for the main clinical aspects of CKD care. Each clinic session is allocated an extended duration of 30 minutes to educate patients on CKD-related medical knowledge, targeted lifestyle modification, and self-management skills. Questionnaires to determine patient's health literacy, self-management skills, and quality of life are assessed at the beginning and end of the study.

Setting:

The study will be conducted across two tertiary hospitals, Alexandra Hospital (AH) and National University Hospital (NUH), located in the western cluster of Singapore. Both hospitals are tertiary healthcare institutions that receive outpatient nephrology consult referrals, including consultation about CKD management, from within the institutions and primary healthcare sector within the western cluster.

Population and Sample:

The investigators plan to implement the envisioned intervention right from when CKD patients are referred to a nephrologist in one of the two institutions. Care received from this point onwards can significantly shape the course of a CKD patient's care journey.

Study Intervention Patients allocated to the intervention group will receive the nurse-led care (INTEGREAT-CKD), which comprises of the following components. Every recruited participant will be reviewed in person by a CKD-trained APN in the clinic on a 3-monthly basis for optimization of the medical management of CKD. Every patient is designated a 30-minute timeslot, an extended duration compared to the timeslot of 10 to 15 minutes that routinely is designated for a recurrent review of a CKD patient in any restructured hospital in Singapore. The 30-minute timeslot starts with a 15-minute medical review centred on a discussion of the biochemical reports and clinical data relevant to CKD management. The subsequent 15-minute time slot will be dedicated to educating patients on improving their knowledge of CKD, including the importance of optimizing clinical parameters that influence CKD progression.

Patients will be placed on community-based and monthly monitoring of clinical parameters relevant to CKD progression. Patients will self-report the monitored parameters to a community-based nurse through a telehealth platform.

Clinical parameters that are out of range will be escalated to the CKD-trained APN, who oversees the monitoring of the community-based monitored parameters and titration of appropriate medications.

Control group Patients assigned to the control group receive the usual standard of care at most specialist outpatient clinics in any tertiary restructured hospital in Singapore. They are not routinely scheduled to receive nurse-led CKD care - management by a CKD-trained APN and community-based monitoring of clinical parameters

Recruitment procedure CKD patients in Alexandra Hospital and National University Hospital who fulfill the study's inclusion criteria will be recruited for participation in the study. They may be recruited from the inpatient wards or outpatient clinics by a member of the research team. After providing written consent, the participants will be randomized to the intervention or control groups.

• Secondary outcome [Time frame: 24 weeks from participants' date of enrollment]