Immunological Response After Shrimp Oral Immunotherapy Treatment

March 15, 2026 updated by: Mahidol University
Oral immunotherapy is effective in desensitized food allergy. Shrimp allergy is increasing in Thailand. So the purpose of our study is to determine level of specific immunoglobulin E antibodies to shrimp, Immunoglobulin G4 and immunoblot analysis in shrimp allergy patients after shrimp oral immunotherapy.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

All subject in this study were sensitized to shrimp. All patient was clinically evaluated, with focus on shrimp allergy by medical history, medical examination and gold standard oral food challenge test. Compare oral immunotherapy to shrimp and shrimp avoidance. Blood sample was taken for baseline determination of immunoglobulin E antibodies to shrimp. The primary outcome was the specific immunoglobulin E antibodies to shrimp,Immunoglobulin G4 and immunoblot analysis in case that oral immunotherapy.

Study Type

Interventional

Enrollment (Actual)

20

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Thailand
    • Bangkok
      • Bangkoknoi, Bangkok, Thailand, 10700
        • Siriraj Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

12 years to 40 years (Child, Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age 12 - 40 years old
  • History of Immunoglobulin E-mediated shrimp allergy > 3 episode/year or disturb quality of life
  • Positive oral food challenge test for shrimp

Exclusion Criteria:

  • History of shrimp anaphylaxis (include cardiovascular or neurological symptoms)
  • Shellfish dependent exercise induced anaphylaxis
  • History of cardiovascular disease, uncontrolled asthma, severe atopic dermatitis
  • History of Beta-blocker, Angiotensin-converting enzyme inhibitor, Angiotensin receptor blocker, Calcium channel blocker

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Shrimp allergy with Intend to eat shrimp
Case shrimp Immunoglobulin E mediated allergy and intend to eat shrimp and start oral immunotherapy for shrimp
Other: shrimp allergy with intend to eat shrimp
shrimp allergy with intend to eat shrimp and treat with oral immunotherapy
No Intervention: Shrimp allergy with avoid shrimp
Case shrimp allergy with avoid shrimp

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Eliciting Dose of Shrimp During Oral Food Challenge
Time Frame: Baseline and 12 months
Change in the eliciting dose (ED) of shrimp protein during oral food challenge from baseline to 12 months in participants with shrimp allergy undergoing shrimp oral immunotherapy compared with avoidance.
Baseline and 12 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Adverse Event From Shrimp Oral Immunotherapy
Time Frame: 1 year
To follow up adverse event from Shrimp oral immunotherapy
1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Mahidol University

Investigators

  • Principal Investigator: Punchama Pacharn, MD, Mahidol University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

August 28, 2020

Primary Completion (Actual)

October 31, 2024

Study Completion (Actual)

December 30, 2024

Study Registration Dates

First Submitted

September 13, 2020

First Submitted That Met QC Criteria

September 13, 2020

First Posted (Actual)

September 17, 2020

Study Record Updates

Last Update Posted (Actual)

April 3, 2026

Last Update Submitted That Met QC Criteria

March 15, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 090/2563

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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