Young Trudye A, Patel Tejesh S, Camacho Fabian, Clark Adele, Freedman Barry I, Kaur Mandeep, Fountain Julie, Williams Lisa L, Yosipovitch Gil, Fleischer Alan B
Department of Dermatology, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.
J Dermatolog Treat. 2009;20(2):76-81. doi: 10.1080/09546630802441218.
The objective of this study was to evaluate the efficacy of a commercially available anti-itch lotion containing 1% pramoxine hydrochloride versus control lotion in the treatment of uremic pruritus in adult hemodialysis patients.
This was a randomized, double-blind, controlled comparative trial set in a community hemodialysis center. The study population comprised 28 individuals (mean age 53.5) with moderate to severe uremic pruritus who had been receiving hemodialysis for at least 3 months. All participants were recruited from one community hemodialysis center. Topical anti-itch lotion containing 1% pramoxine was applied twice daily to all affected areas of pruritus for 4 weeks. The main outcome measure was a reduction in itch intensity. Secondary outcomes included increases in the investigator's global assessment and improvement in skin hydration.
There was a 61% decrease in itch intensity in the treatment group, whereas a 12% reduction in itch intensity was observed in the control group. The rate of decline in itching was also greater in the treatment arm versus the control arm. No significant differences were displayed in other studied disease-related variables.
Our study shows that individuals using pramoxine 1% lotion experienced a reduction in pruritus to a greater degree than those using the control lotion. This safe, convenient and effective topical lotion may potentially benefit the large number of patients affected by pruritus associated with end-stage renal disease.
本研究旨在评估一种市售的含1%盐酸普莫卡因的止痒洗剂与对照洗剂相比,在治疗成年血液透析患者尿毒症瘙痒方面的疗效。
这是一项在社区血液透析中心进行的随机、双盲、对照比较试验。研究人群包括28名(平均年龄53.5岁)患有中度至重度尿毒症瘙痒且已接受血液透析至少3个月的个体。所有参与者均从一个社区血液透析中心招募。将含1%普莫卡因的外用止痒洗剂每天两次涂抹于所有瘙痒受累部位,持续4周。主要结局指标是瘙痒强度的降低。次要结局包括研究者整体评估的改善和皮肤水合作用的改善。
治疗组瘙痒强度降低了61%,而对照组瘙痒强度降低了12%。治疗组瘙痒下降率也高于对照组。在其他研究的疾病相关变量中未显示出显著差异。
我们的研究表明,使用1%普莫卡因洗剂的个体比使用对照洗剂的个体瘙痒减轻程度更大。这种安全、方便且有效的外用洗剂可能会使大量受终末期肾病相关瘙痒影响的患者受益。