Efficacy of Allergen Immunotherapy for Allergic Rhinitis in Thais

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01115595
Recruitment Status : Unknown
Verified August 2011 by Mahidol University.
Recruitment status was:  Recruiting
First Posted : May 4, 2010
Last Update Posted : August 3, 2011
National Research Council of Thailand
Information provided by:
Mahidol University

Brief Summary:

The purpose of this study is to study the efficacy of allergen injection immunotherapy for allergic rhinitis by

  • symptoms score
  • medication score
  • quality of life
  • immunologic test from blood

Condition or disease Intervention/treatment Phase
Rhinitis, Allergic, Perennial Biological: Mite allergen extract Phase 4

Detailed Description:

Compare the efficacy of allergen injection immunotherapy between the treatment group and the placebo group after injection for

  • 2 months
  • 6 months
  • 12 months

Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 100 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Efficacy of Mite Allergen Vaccine Among Thai Patients With Allergic Rhinitis
Study Start Date : March 2010
Estimated Primary Completion Date : March 2013
Estimated Study Completion Date : March 2013

Arm Intervention/treatment
No Intervention: Placebo injection
Placebo injection with standard medication (oral antihistamine and/or topical nasal steroid)
Biological: Mite allergen extract
Dermatophagoides pteronyssinus from ALK company
Other Name: Allegen extract (D.p) from ALK company. 10,000 AU/ml

Primary Outcome Measures :
  1. Total nasal symptoms score [ Time Frame: average within 1 week ]

    3 point scale (0,1,2,3) and combination of

    • nasal block
    • rhinorrhea
    • itching
    • sneezing

Secondary Outcome Measures :
  1. Combined total symptoms score and medication score [ Time Frame: average within 1 week ]
    Total symptom score (nasal block, rhinorrhea, itching, sneezing, and eye symptoms with chest symptoms = Maximal score --> 18 devided by 6 = 3) PLUS medication score ( antihistamine = 1, topical nasal steroid = 2; --> Maximal score = 3).

Information from the National Library of Medicine

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Ages Eligible for Study:   12 Years and older   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • patients with the symptoms of allergic rhinitis who sensitized to mite (Dermatophagoides pteronyssinus)
  • positive skin prick test to D.p. at 4+ degree

Exclusion Criteria:

  • steroid dependent asthma
  • force expiratory volume (FEV1) less than 70% of predicted value
  • previous injection immunotherapy within 2 years
  • pregnancy
  • medical conditions such as ischemic heart disease, autoimmune disease, cancer, previous history of anaphylaxis

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01115595

Contact: Pongsakorn Tantilipikorn, M.D. +66 2 419 7409
Contact: Bangon Pinkaew, M.Sc. +66 2 4197409

Division of Allergy and Rhinology, Faculty of Medicine Siriraj, Mahidol University Recruiting
Bangkok, Thailand, 10700
Contact: Bangon Pinkaew, M.Sc.    +66 2 419 7409   
Sponsors and Collaborators
Mahidol University
National Research Council of Thailand
Principal Investigator: Pongsakorn Tantilipikorn, M.D. Division of allergy and rhinology, Faculty of Medicine Siriraj, Mahidol University

Responsible Party: National Research Council of Thailand Identifier: NCT01115595     History of Changes
Other Study ID Numbers: 336/2552
First Posted: May 4, 2010    Key Record Dates
Last Update Posted: August 3, 2011
Last Verified: August 2011

Keywords provided by Mahidol University:
Allergic rhinitis
Allergen injection immunotherapy

Additional relevant MeSH terms:
Rhinitis, Allergic
Rhinitis, Allergic, Perennial
Nose Diseases
Respiratory Tract Diseases
Respiratory Tract Infections
Otorhinolaryngologic Diseases
Respiratory Hypersensitivity
Hypersensitivity, Immediate
Immune System Diseases