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Effect and Underlying Immunological Mechanisms of Sublingual Immunotherapy in Allergic Rhinitis

Seasonal Allergic Rhinitis Clinical Trial

Official title:
Effect and Underlying Immunological Mechanisms of Sublingual Immunotherapy in Seasonal Allergic Rhinitis: a Randomized, Double Blind, Placebo Controlled Trial

Clinical Trial Summary

Allergic rhinitis (AR) is a common Ig-E mediated disease of nasal mucosa, induced by an immunoglobulin E (IgE)-mediated reaction in the allergen-sensitized subjects, affecting 10% to 40% of the world population. AR could be divided into two kinds, perennial AR and seasonal AR (SAR). Allergen specific immunotherapy (AIT) is the only etiological treatment available for AR. Traditionally, AIT is divided into 2 types, subcutaneous immunotherapy (SCIT) and sublingual immunotherapy (SLIT), both of which are effective and safe alternatives.

The trial is a randomized, double-blind, placebo-controlled trial. 72 eligible SAR patients, who were sensitized to sweet sagewort (artemisia annua), were enrolled into the trial, followed by either a 32-week SLIT schedule, where the maintenance dose would be reached within 5 weeks, or placebo SLIT schedule. Standardized depot preparations of sweet sagewort (artemisia annua) extract (Zhejiang Wolwo Bio-pharmaceutical Co., Ltd., China ) were administered by means of sublingual drops.

Clinical Trial Description

n/a

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT03649139
Study type Interventional
Source Beijing Tongren Hospital
Contact
Status Completed
Phase Phase 3
Start date April 1, 2017
Completion date October 30, 2018
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See also
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