Efficacy of Sublingual Immunotherapy in Polysensitized Allergic Rhinitis Patients
- Conditions
- Allergic Rhinitis
- Interventions
- Drug: Pangramin®
- Registration Number
- NCT01247259
- Lead Sponsor
- Seoul National University Hospital
- Brief Summary
Recently, interest has increased in sublingual immunotherapy (SLIT) for treating allergic rhinitis. It is often suggested that polysensitized patients might not benefit from specific immunotherapy as much as monosensitized patients, although further research on this subject is needed. This study compared the efficacy of SLIT with standardized house dust mite extract in mono- and polysensitized allergic rhinitis patients.
Patients who were sensitized to house dust mites and treated with SLIT for house dust mites for at least 1 year between November 2007 and March 2010 were included. The mono-allergen sensitized group (Mgr) was defined as the patients who were sensitized to Dermatophagoides pteronyssinus (Dp) or D. farinae (Df; n = 70). The poly-allergen sensitized group (Pgr) was defined as the patients who were simultaneously sensitized to house dust mites and other allergens (n = 64). A standardized extract of house dust mites was used for immunotherapy. Anti-allergic medication and the total nasal symptom score (TNSS), including rhinorrhea, sneezing, nasal obstruction, and itchy nose, were evaluated before and 1 year after SLIT.
This study enrolled 134 patients. The TNSS improved significantly after SLIT in both groups, while the change in the TNSS did not differ significantly between the groups. The anti-allergic medication scores also decreased significantly in both groups, but there was no significant difference between the groups.
In polysensitized allergic rhinitis patients, SLIT for Dp/Df gave comparable improvements in both nasal symptoms and rescue medication scores to those in monosensitized patients, regardless of other positive allergens. SLIT for Dp/Df might be considered in polysensitized allergic rhinitis patients.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 134
- Patients who had sneezing, itching, rhinorrhea, and nasal congestion with or without eye symptoms
- patients who were sensitized to Dermatophagoides pteronyssinus (Dp) or D. farinae (Df), as confirmed by skin prick testing (A/H ratio ≥ 1) or MAST
- Patients who had immunotherapy in the preceding 3 years
- Patients who had systemic immunological disorders
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description SLIT-mono Pangramin® - SLIT-poly Pangramin® -
- Primary Outcome Measures
Name Time Method total nasal symptom score (TNSS) and anti-allergic medication score (AMS) 1 year
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Department of Otorhinolaryngology, Seoul National University Hospital
🇰🇷Seoul, Korea, Republic of