Clinical Trials Logo

Clinical Trial Summary

The purpose of this study is to determine the appropriate concentration of diagnostic reagent of house dust mite (Dp) to be used in diagnostic allergy skin prick test among Thai population with allergic rhinitis.


Clinical Trial Description

The current allergy diagnostic reagent of house dust mites marketed in the USA is at 10,000 AU/ml. This is based on the IDEAL50 concept put forth by Turkeltaub et al, almost 3 decades ago. Such concentration has been shown to give large degree of false positives even in the US population.

In Thailand, it was anecdotally observed that at such concentration, sizes of positive tests among atopic subjects were quite large and could lead to discomfort and a possible anaphylaxis in certain allergic individuals. Moreover, up to 40% of normal individuals could give positive reaction to this concentration.

It is therefore desirable to reexamine the appropriate concentration of diagnostic reagent of house dust mites among the Thai population and will be the main objective of this research. ;


Study Design

Observational Model: Case Control, Time Perspective: Cross-Sectional


Related Conditions & MeSH terms


NCT number NCT01172613
Study type Observational
Source Siriraj Hospital
Contact Professor Pakit Vichyanond, MD
Phone 02-419-9465-6
Email pakitv@gmail.com
Status Recruiting
Phase Phase 2/Phase 3
Start date June 2010

See also
  Status Clinical Trial Phase
Terminated NCT01337323 - Prospective Observational Study of Concomitant Allergic Rhinitis Treatment Patterns Among Patients Starting on Fluticasone Furoate Nasal Spray in a Retail Pharmacy Setting N/A
Completed NCT00851344 - Allergen Challenge Chamber Study With Single Dose Oral GSK835726 Compared With Placebo Phase 2
Completed NCT00537355 - An Evaluation of the Efficacy and Safety of TOLAMBA™ for Ragweed-Allergic Rhinitis in an Environmental Exposure Chamber Phase 2
Completed NCT00501527 - Immunotherapy With Depigmented and Polymerized Allergen Extract of Phleum Pratense Phase 2
Completed NCT00422149 - Twin SUBLIVAC® Grasses Clinical Efficacy Study Phase 3
Completed NCT00542607 - Efficacy and Safety of Levocetirizine and Fexofenadine in Reducing Symptoms of Seasonal Allergic Rhinitis Phase 4
Completed NCT00605852 - Investigation Of a New Oral Anti-Histamine in Healthy Male Subjects Phase 1
Recruiting NCT05960266 - Immunological Analysis of Lymph Node Tissue After Intralymphatic Immunotherapy: A Prospective Case Control Study Early Phase 1
Completed NCT02256553 - Safety Study of MK-3641 and MK-7243 Co-administered in Adult Participants With Ragweed and Grass Pollen Induced Allergic Rhinitis (P08607, MK-3641-006) Phase 4
Completed NCT01007721 - Randomized, Placebo Controlled, Crossover Study in an Environmental Challenge Chamber to Assess Safety & Efficacy of Three Oral Doses of BI 671800 Versus Fluticasone Propionate and Montelukast in Sensitive Seasonal Allergic Rhinitis Patients Out of Season Phase 2
Completed NCT00932256 - Clinical Trial of STAHIST in Seasonal Allergic Rhinitis Patients Phase 1
Completed NCT00901914 - Study of rBet v1 Tablets Phase 2
Completed NCT00384475 - A Study of Ciclesonide Nasal Spray in Patients 18 Years and Older With Seasonal Allergic Rhinitis (BY9010/M1-413) Phase 3
Active, not recruiting NCT00135629 - Factors Predicting Efficacy of Allergen Injection Immunotherapy for Grass Pollen Hayfever Phase 3
Completed NCT00839189 - Effect of a 10,000 EU Dose of Endotoxin in Allergic and Mildly Asthmatic Adults Phase 1
Completed NCT04687059 - An Exploratory Study of PQ Grass 27600 SU Phase 2/Phase 3
Completed NCT00889460 - Safety and Tolerability Study of rBet v1 SLIT Tablets Phase 1
Completed NCT00396149 - Safety, Tolerability and Pharmacodynamic Effects of Sublingual Immunotherapy (Tablets) With Recombinant Bet v1 Phase 1
Completed NCT00127647 - An Approved Drug to Study a New Indication for Allergic Rhinitis (0476-327) Phase 3
Completed NCT00659594 - Study Using the Environmental Exposure Chamber (EEC) to Assess the Onset of Action of Ciclesonide, Applied as a Nasal Spray in Treatment of Seasonal Allergic Rhinitis (BY9010/M1-406) Phase 3