Evidence map›Paper›PMID 38196014›Full record

Trial reportThe patient2024

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.

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

Registry-linked trialOpen access · hybridAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in The patient, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03998163 (An Open-Label, Multicenter Study to Evaluate the Safety and Effectiveness of Intravenous CR845 in Hemodialysis Patients With Moderate-to-Severe Pruritus), which is not on this map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
7.0field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT03998163 phase3completednot on this map

An Open-Label, Multicenter Study to Evaluate the Safety and Effectiveness of Intravenous CR845 in Hemodialysis Patients With Moderate-to-Severe Pruritus

TypeinterventionalSponsorCara Therapeutics, Inc.Ran2019 to 2020Enrolled222ConditionsUremic PruritusArmsCR845 0.5 mcg/kg
3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Comparative performance of EQ-5D-5L bolt-ons in China and the Netherlands: results from the EQ-DAPHNIE project.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Exploring the content validity of the EQ-5D-5L and four bolt-ons (skin irritation, self-confidence, sleep, social relationships) in atopic dermatitis and chronic urticaria.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2025
    Article
  10. Qualitative evidence on EQ-5D-5L skin irritation and self-confidence bolt-ons in Darier's disease and Hailey-Hailey disease.Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2025
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 6 institutions in 4 countries.

James FotheringhamSchool of Health and Related Research, University of Sheffield, Sheffield, UK. j.fotheringham@sheffield.ac.uk.ORCID 0000-0002-8980-2223
Julian GuestCatalyst Consultants, Poole, UK.
Joerg LatusRobert-Bosch-Hospital, Stuttgart, Germany.
Edgar LermaDepartment of Nephrology, Advocate Christ Medical Center, University of Illinois at Chicago, Oak Lawn, IL, USA.
Isabelle MorinCSL Vifor, Glattbrugg, Switzerland.
Thilo SchauflerCSL Vifor, Glattbrugg, Switzerland.
Marco SoroCSL Vifor, Rome, Italy.
Sonja StänderDepartment of Dermatology, Center for Chronic Pruritus, University Hospital Münster, Münster, Germany.
Steven ZeigPines Clinical Research, Pembroke Pines, Hollywood, FL, USA.
Vifor Pharma (Switzerland) · CHCatalyst Health Economics Consultants Ltd · GBRobert Bosch Hospital · DESheffield Kidney Institute · GBUniversity Hospital Münster · DEUniversity of Illinois Chicago · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveChronic 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.

methodsPost 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).

resultsA 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.

conclusionsPatients 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.

Indexed as

PiperidinesQuality of LifeRenal Insufficiency, ChronicHumansPruritusRenal DialysisdifelikefalinPiperidines

Identifiers

PMID38196014
PMCPMC10894140
OpenAlexW4390706715

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.