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Efficacy of Sublingual Immunotherapy in Polysensitized Allergic Rhinitis Patients

NCT01247259 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 134

Last updated 2010-11-24

No results posted yet for this study

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.

Conditions

  • Allergic Rhinitis

Interventions

DRUG

Pangramin®

During a 4-week increasing-dose phase, the patients increased the daily dose from 1 to 5 drops of 1.6 STU/mL solution from day 1 to 10, 1 to 5 drops of 8 STU/mL solution from day 11 to 15, 1 to 5 drops of 40 STU/mL solution from day 16 to 20, 1 to 5 drops of 200 STU/mL solution from day 21 to 25, and 1 to 5 drops of 1000 STU/mL solution from day 26 to 30. After reaching the maintenance dose, 5 drops of 1000 STU/mL solution, the patients took the allergen three times per week during the maintenance phase.

Sponsors & Collaborators

  • Seoul National University Hospital

    lead OTHER

Principal Investigators

  • Dong-Young Kim, MD, PhD · Seoul National University Hospital

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
4 Years
Max Age
53 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2007-11-30
Primary Completion
2010-02-28
Completion
2010-10-31

Countries

  • South Korea

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01247259 on ClinicalTrials.gov