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Published in: The Patient - Patient-Centered Outcomes Research 2/2024

Open Access 09-01-2024 | Pruritus | Original Research Article

Impact of Difelikefalin on the Health-Related Quality of Life of Haemodialysis Patients with Moderate-To-Severe Chronic Kidney Disease-Associated Pruritus: A Single-Arm Intervention Trial

Authors: James Fotheringham, Julian Guest, Joerg Latus, Edgar Lerma, Isabelle Morin, Thilo Schaufler, Marco Soro, Sonja Ständer, Steven Zeig

Published in: The Patient - Patient-Centered Outcomes Research | Issue 2/2024

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Abstract

Objective

Chronic kidney disease-associated pruritus (CKD-aP) can have a substantial negative impact on health-related quality of life (HRQoL), including an increased risk of depression, anxiety and sleep disturbance. This trial aimed to assess the impact of intravenous difelikefalin on HRQoL in haemodialysis patients with moderate-to-severe CKD-aP.

Methods

Post hoc analysis of an open-label, multicentre, single-arm intervention trial assessed pruritus severity and HRQoL at baseline and at 12 weeks of difelikefalin treatment using Worst Itching Intensity Numerical Rating Scale (WI–NRS), Sleep Quality Numeric Rating Scale (SQ–NRS), 5-D itch scale, Skindex-10 scale, EQ-5D-5L with Pruritus Bolt-On (EQ-PSO).

Results

A total of 222 patients received ≥ 1 dose of difelikefalin, and 197 patients completed 12 weeks of difelikefalin treatment. Clinically meaningful changes from baseline to 12 weeks were observed in all disease-specific measures: 73.7% of patients achieved a ≥ 3-point reduction in the weekly mean of 24 h WI–NRS scores and 66% of patients experienced ≥ 3-point improvements in SQ–NRS scores. Improvements were also observed in all Skindex-10 scale and 5-D itch scale domain scores. The percentage of patients reporting no problems in all EQ-PSO domains increased from 1.4 to 24.7% (p < 0.001), respectively. Patients’ generic HRQoL EQ-5D-5L mean utility and EQ-5D visual analogue scale scores increased from baseline to 12 weeks: mean changes 0.04 (p = 0.001) and 2.8 (p = 0.046), respectively.

Conclusions

Patients undergoing haemodialysis with moderate-to-severe CKD-aP receiving difelikefalin reported experiencing clinically meaningful improvements in both their pruritus symptoms and itch-related QoL.
ClinicalTrials.gov registration number, NCT03998163; first submitted, 7 May 2019.
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Metadata
Title
Impact of Difelikefalin on the Health-Related Quality of Life of Haemodialysis Patients with Moderate-To-Severe Chronic Kidney Disease-Associated Pruritus: A Single-Arm Intervention Trial
Authors
James Fotheringham
Julian Guest
Joerg Latus
Edgar Lerma
Isabelle Morin
Thilo Schaufler
Marco Soro
Sonja Ständer
Steven Zeig
Publication date
09-01-2024
Publisher
Springer International Publishing
Published in
The Patient - Patient-Centered Outcomes Research / Issue 2/2024
Print ISSN: 1178-1653
Electronic ISSN: 1178-1661
DOI
https://doi.org/10.1007/s40271-023-00668-1

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