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Grass Sensitisation and Allergic Rhinitis in Thai Patients

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT01686022
First Posted: September 17, 2012
Last Update Posted: September 14, 2016
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.
Collaborator:
National Research Council of Thailand
Information provided by (Responsible Party):
Punchama Pacharn, Mahidol University
  Purpose
Allergic rhinitis patients are the patients who have nasal symptoms when triggered by indoor or outdoor allergens. Outdoor allergen can be divided into grass, tree, or weed. The type of grass or weed are different in various part of the world. The allergens from grass and weed has never been studied in Thailand. This study will find the major allergen from Bermuda grass, Johnson grass, Para grass, sedge, and ragweed, which are very common in Thailand. In addition, the investigators will study about the cross-reactivity among these group of allergen.

Condition Intervention
Allergy to Grass Pollen Allergic Rhinitis Due to Weed Pollens Other: Immunoblot

Study Type: Observational
Official Title: The Study of Allergens From Grass and Weed Which Are Causes of Allergic Rhinitis in Thai Patients

Resource links provided by NLM:


Further study details as provided by Punchama Pacharn, Mahidol University:

Biospecimen Retention:   Samples Without DNA
Serum

Enrollment: 40
Study Start Date: October 2012
Study Completion Date: October 2015
Primary Completion Date: October 2015 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
Pollen Allergy
Pollen allergy and control will have the same intervention, ie. Skin prick test and collect serum samples.Then measure the specificIgE, immunoblot, and ELISA inhibition
Other: Immunoblot
serum specific IgE binds to grass extract by immunoblot

Detailed Description:

To find the major allergen of grass and weed, the serum of patients will be used to bind with the allergen extract by immunoblot study.

The ELISA-inhibition will be used to study about cross-reactivity among various kinds of grass and weed.

  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   10 Years to 50 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Allergy Clinic
Criteria

Inclusion Criteria:

  • Allergic rhinitis patients age 10-50 years old
  • Control: healthy volunteer age 18-50 years old

Exclusion Criteria:

  • Chronic illness such as cardiovascular diseases, liver diseases
  • History of anaphylaxis
  • Pregnancy
  Contacts and Locations
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 ClinicalTrials.gov identifier (NCT number): NCT01686022


Locations
Thailand
Siriraj Hospital
Bangkoknoi, Bangkok, Thailand, 10700
Sponsors and Collaborators
Mahidol University
National Research Council of Thailand
Investigators
Principal Investigator: Punchama Pacharn, MD Mahidol University
  More Information

Responsible Party: Punchama Pacharn, Principal investigator, Mahidol University
ClinicalTrials.gov Identifier: NCT01686022     History of Changes
Other Study ID Numbers: NRCT_G04
First Submitted: September 12, 2012
First Posted: September 17, 2012
Last Update Posted: September 14, 2016
Last Verified: September 2016
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Undecided

Keywords provided by Punchama Pacharn, Mahidol University:
Grass
Major allergen
cross-reactivity

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