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The Effect of a Thixotropic Nasal Gel on Nasal Symptoms and Inflammatory Biomarkers in Seasonal Allergic Rhinitis.
International Archives of Allergy and Immunology ( IF 2.5 ) Pub Date : 2020-04-07 , DOI: 10.1159/000506129
Nadja Struß 1 , Philipp Badorrek 1 , Claudia Mattern 2 , Udo Mattern 2 , Jens M Hohlfeld 3, 4, 5
Affiliation  

BACKGROUND Drug-free viscous nasal applications have been shown to reduce nasal symptoms in individuals with seasonal allergic rhinitis (SAR). Nascum®-Plus (NP), a commercially available thixotropic gel, has been designed to reduce dryness and soreness of the nasal mucosa and prevent the absorption of small particles. OBJECTIVES The aim of this study was to assess the efficacy of single-dose NP in treating nasal symptoms and secretion during challenge in an allergen challenge chamber (ACC). Furthermore, the effect of this treatment on biomarkers and immune cells of the allergic cascade were measured. METHODS This open-label, cross-over, sequence-randomized, monocentric trial randomized 18 adults with SAR and a positive skin prick test reaction to Dactylis glomerata pollen to receive NP or no treatment during two 4-h ACC sessions 3 weeks apart. On Day 1, 9 subjects were challenged for 4 h with treatment, the other 9 without treatment, and vice versa on Day 22. Nasal lavage fluid and nasal filter eluate samples were obtained pre, 2, and 18 h post challenge in the ACC. RESULTS NP significantly reduced nasal symptoms, assessed by total nasal symptom score (p < 0.001), and minimized nasal secretion (p = 0.047), while no significant effect on biomarkers and immune cells in the nasal fluid was observed. The treatment was safe and well-tolerated. CONCLUSIONS The physical barrier built by NP nasal gel can be safely applied in patients with allergic rhinitis. It reduces allergic nasal symptoms and secretion, but application of a single dose does not affect local inflammatory biomarkers.

中文翻译:

触变鼻凝胶对季节性变应性鼻炎的鼻症状和炎症生物标志物的影响。

背景技术已经显示,无药物粘性鼻腔施用可以减轻季节性过敏性鼻炎(SAR)患者的鼻部症状。Nascum®-Plus(NP)是一种可商购的触变凝胶,旨在减少鼻粘膜的干燥和酸痛并防止小颗粒的吸收。目的本研究的目的是评估单剂量NP在变应原激发室(ACC)激发期间治疗鼻部症状和分泌物的功效。此外,测量了这种处理对过敏级联反应的生物标志物和免疫细胞的作用。方法该开放标签,交叉,序列随机,单中心试验将18例成年人SAR和Dactylis glomerata花粉的皮肤刺试验阳性反应随机分为18名成年人,在两次3小时ACC疗程中接受NP或不接受治疗。在第1天,有9名受试者接受治疗4小时,其余9名未经治疗,反之亦然。在第22天,在ACC中,攻击前,攻击后2小时和18 h获得洗鼻液和鼻滤器洗出液样品。结果NP可以通过总鼻症状评分(p <0.001)显着减少鼻部症状,并最大程度地减少鼻腔分泌(p = 0.047),而对鼻液中的生物标志物和免疫细胞没有显着影响。治疗安全且耐受性良好。结论NP鼻凝胶建立的物理屏障可以安全地用于过敏性鼻炎患者。它减少了过敏性鼻部症状和分泌,但是单剂量应用不会影响局部炎症生物标志物。反之亦然。在第22天,反之亦然。在ACC中攻击前,攻击后2h和攻击后18h收集洗鼻液和鼻过滤器洗出液样品。结果NP可以通过总鼻症状评分(p <0.001)显着减少鼻部症状,并最大程度地减少鼻腔分泌(p = 0.047),而对鼻液中的生物标志物和免疫细胞没有显着影响。治疗安全且耐受性良好。结论NP鼻凝胶建立的物理屏障可以安全地用于过敏性鼻炎患者。它减少了过敏性鼻部症状和分泌,但是单剂量应用不会影响局部炎症生物标志物。反之亦然。在第22天,反之亦然。在ACC中攻击前,攻击后2h和攻击后18h收集洗鼻液和鼻过滤器洗出液样品。结果NP可以通过总鼻症状评分(p <0.001)显着减少鼻部症状,并最大程度地减少鼻腔分泌(p = 0.047),而对鼻液中的生物标志物和免疫细胞没有显着影响。治疗安全且耐受性良好。结论NP鼻凝胶建立的物理屏障可以安全地用于过敏性鼻炎患者。它减少了过敏性鼻部症状和分泌,但是单剂量应用不会影响局部炎症生物标志物。通过总鼻症状评分(p <0.001)和最小化鼻分泌(p = 0.047)进行评估,而对鼻液中的生物标志物和免疫细胞没有显着影响。治疗安全且耐受性良好。结论NP鼻凝胶建立的物理屏障可以安全地用于过敏性鼻炎患者。它减少了过敏性鼻部症状和分泌,但是单剂量应用不会影响局部炎症生物标志物。通过总鼻症状评分(p <0.001)和最小化鼻分泌(p = 0.047)进行评估,而未观察到对鼻液中生物标志物和免疫细胞的显着影响。治疗安全且耐受性良好。结论NP鼻凝胶建立的物理屏障可以安全地用于过敏性鼻炎患者。它减少了过敏性鼻部症状和分泌,但是单剂量应用不会影响局部炎症生物标志物。
更新日期:2020-04-07
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