Description Module
The Description Module contains narrative descriptions of the clinical trial, including a brief summary and detailed description. These descriptions provide important information about the study's purpose, methodology, and key details in language accessible to both researchers and the general public.
Description Module path is as follows:
Study -> Protocol Section -> Description Module
Description Module
Ignite Creation Date:
2025-12-24 @ 11:41 PM
Ignite Modification Date:
2025-12-24 @ 11:41 PM
NCT ID:
NCT07098351
Brief Summary:
Moderate to severe pruritus significantly impairs the quality of life in peritoneal dialysis patients, and effective treatment options remain limited. κ-opioid receptor agonists may alleviate itching by modulating neural signaling pathways. This study is a multicenter, prospective, single-arm clinical trial, planning to enroll 93 patients. It aims to test the hypothesis that nalfurafine hydrochloride orally disintegrating tablets compared to baseline, with acceptable safety.
Detailed Description:
This is a multicenter, prospective, single-arm clinical study designed to evaluate the efficacy and safety of nalfurafine hydrochloride orally disintegrating tablets in treating moderate-to-severe pruritus in peritoneal dialysis patients. The study consists of three phases: a screening period (1-2 weeks), a treatment period (4 weeks), and a follow-up period (1 week). During the screening phase, baseline pruritus levels are established using the Visual Analog Scale (VAS) and the Shichuan-Kawashima Pruritus Severity Score. The treatment period begins with an initial dose of 2.5 μg/day, which may be adjusted to 5 μg/day after 2 weeks based on symptom response; the follow-up phase assesses pruritus improvement and safety. The study plans to enroll 93 patients (including a 20% dropout rate), with the primary endpoint being the change in VAS score from baseline to week 4 of treatment. Secondary endpoints include VAS score changes at different stages, quality-of-life improvements, and adverse event incidence.
Eligible patients are aged 18-85 years, undergoing regular peritoneal dialysis for ≥3 months, and meeting baseline VAS criteria for moderate-to-severe pruritus. The primary efficacy measure is the mean change in daily maximum VAS scores (baseline vs. week 4), while secondary measures include pruritus severity scores, sleep quality, dose adjustment rates, and laboratory safety data. Statistical analyses will follow intention-to-treat (ITT) and per-protocol (PP) principles. Based on preliminary data (mean 28.4 mm, standard deviation 21.82 mm), the sample size calculation ensures 95% power to validate efficacy hypotheses.
The intervention involves monotherapy with nalfurafine hydrochloride orally disintegrating tablets, starting at 2.5 μg/day, with a potential increase to 5 μg/day after 2 weeks. Standardized scales assess pruritus, quality of life, and sleep improvements, alongside monitoring of vital signs, electrocardiograms, and laboratory parameters for safety evaluation. Enrollment criteria require ≥5 days of recorded morning/evening VAS scores during the baseline period (average ≥50 mm) and ≥2 days with Shichuan-Kawashima pruritus scores ≥3 (moderate severity).
The study anticipates a significant reduction in VAS scores as the primary endpoint, with secondary endpoints including dose adjustments, safety events, and patient-reported outcomes. This single-arm self-controlled study validates drug efficacy while strictly controlling dropout rates and data integrity to ensure result reliability.
Study:
NCT07098351
Study Brief:
Protocol Section:
NCT07098351