How Intralymphatic Immunotherapy Can Affect Quality of Life and Symptoms in Patients With Permanent Seasonal Allergic Rhinitis, a Quasi-Experimental Design
Abstract BackgroundAllergen-specific immunotherapy is known as the only disease-modifying treatment for IgE-mediated allergic disorders. Intra lymphatic immunotherapy (ILIT) is a safe, effective, and time-saving alternative to subcutaneous immunotherapy (SCIT). This study aimed to evaluate the effects and safety of ILIT in patients with moderate to severe allergic rhinitis. MethodsIn this clinical trial, fifteen patients with moderate to severe allergic rhinitis between 18-65 years old received monthly intralymphatic inguinal injections of an active allergen (1000 SQ-U Salsola kali pollen). Clinical effects were assessed before and 4 weeks after treatment and at two consecutive pollination seasons and following non-pollination season in April.ResultsNo moderate or severe reactions were recorded following the ILIT treatment. Lymph node enlargement, local itching/erythema were seen in 6.7%, 13.3% of total respectively one day after injection. Patients who received ILIT experienced a significant clinical improvement in self-recorded seasonal allergic symptoms after treatment, as compared to themselves before ILIT. Quality of life significantly got better based on the Mini RQLQ questionnaire.ConclusionAlthough this study is based on a limited number of patients, ILIT with Salsola-pollen extract appears to decrease symptoms of allergic rhinitis without causing any crucial complications.This clinical trial study was recorded in the Iran Registry of Clinical Trials (IRCT20161206031256N2).