1. Chronic kidney disease-associated pruritus and quality of life with difelikefalin treatment: a post hoc analysis of phase 3 data using the Skindex-10 questionnaire.
- Author
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Ständer, Sonja, Fishbane, Steven, Schaufler, Thilo, Ruessmann, Despina, Morin, Isabelle, Menzaghi, Frédérique, Wen, Warren, and Kalantar-Zadeh, Kamyar
- Subjects
chronic kidney disease ,haemodialysis ,patient-reported outcomes ,pruritus ,quality of life - Abstract
BACKGROUND: Pruritus is a common condition in chronic kidney disease (CKD), especially for patients receiving haemodialysis. CKD-associated pruritus (CKD-aP) can be distressing and have a negative impact on quality of life (QoL). This post hoc analysis aimed to assess the relationship between pruritus relief and QoL. METHODS: Data from phase 3 trials [(NCT03422653, NCT03636269 grouped), and NCT03998163] of the novel antipruritic difelikefalin (N = 914) were used to assess the relationship between reductions in pruritus intensity at Week 12 (24-h Worst Itching Intensity Numeric Rating Scale; WI-NRS), perceived improvement in itch (Patient Global Impression of Change, PGI-C) and pruritus-related QoL (Skindex-10 questionnaire). RESULTS: Patients receiving difelikefalin had greater improvements in Skindex-10 total scores than those receiving placebo [LS mean treatment difference -3.4; 95% confidence interval (CI) -5.5, -1.3; P = .002] and greater improvements across Skindex-10 domains (disease, mood and social functioning) at Week 12. In patients receiving difelikefalin, those with clinically meaningful improvements in pruritus (≥3-point reduction in WI-NRS score) at Week 12 had a greater improvement in Skindex-10 total score (mean difference 14.2; 95% CI 11.0, 17.3; P
- Published
- 2024