High and Low Dose Oral Sesame Immunotherapy - Comparison of Efficacy and Safety (Sesame)

March 18, 2024 updated by: Medical University of Warsaw
In this trial the investigators aim to assess the effectiveness and safety of oral immunotherapy with sesame protein in high and low dose (300mg versus 1200mg) in children with sesame allergy.

Study Overview

Status

Recruiting

Conditions

Detailed Description

Sesame allergy is an important global clinical problem affecting 0,2-0,8% population. In food allergy, allergen avoidance and emergency treatment are still therapeutic hallmarks. Oral and sublingual allergen-specific immunotherapies have been provided as a new approach to managing food allergy. The main goal of oral immunotherapy is to obtain the desensitization to food. The oral immunotherapy (OIT) is considered as safe and highly effective, according to current research. In addition, this type of therapy reduce the influence of food allergy in patient's live.

Children 4 to 17 years old with sesame allergy will be enrolled into study. Skin prick test with condiment made from toasted ground hulled sesame and open oral food challenge (OOFC) will be performed at the baseline and at the end of procedure. Blood will be analyzed for specific IgE, IgG4 levels and basophil activation test before and after OIT. OIT will consisted of two parts: dosage increase phase and maintenance phase. The Participants will be randomized (1:1) to receive sesame OIT with maintenance dose of 300 mg or 1200 mg sesame protein.

In the dosage increase phase, the dose of condiment made from toasted ground hulled sesame will be gradually increased every two weeks and administrated to a child during hospitalization (1-day procedure). Precondition to increase of dose is good tolerance of previous portion of condiment made from toasted ground hulled sesame. The maximum time frame for this phase is 14 months.

After achieving tolerance, immunotherapy will be continued for 3 months in maintenance phase, with dose 300mg or 1200 mg sesame protein. Maintenance dose is determined by random patients' assignment to one from study's .

After 3 months (12 weeks +/-2 weeks) of maintenance dose the final OOFC and evaluation of desensitization of sesame protein will be performed. Confirmation of the total desensitization to sesame is the tolerance of a single dose of 4000 mg sesame protein.

Study Type

Interventional

Enrollment (Estimated)

40

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 Contact

Study Contact Backup

Study Locations

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

4 years to 17 years (Child)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • medical history of sesame allergy,
  • IgE-mediated sesame allergy confirmed as positive skin prick tests with sesame allergens (diameter of the wheal greater than 3mm) and/or specific IgE level greater than 0.35 kilo units of Allergen per liter (kUA/l) (UniCAP method),
  • reaction to sesame protein during OOFC (maximum dose 4000g),
  • signed Informed Consent by parent/legal guardian and patient aged >16 years old,
  • patient's/caregivers' cooperation with researcher.

Exclusion Criteria:

  • no confirmed sesame allergy,
  • negative oral food challenge with sesame protein (maximum dose 4000g),
  • severe asthma,
  • uncontrolled mild/moderate asthma: forced expiratory volume at one second (FEV1)<80% (under 5. percentile), FEV1/forced vital capacity (FVC)<75% (under 5. percentile), hospitalization due to asthma exacerbation within last 12 months,
  • current oral/sublingual/subcutaneous immunotherapy with other allergen,
  • eosinophilic gastroenteritis,
  • a history of severe recurrent anaphylaxis episodes,
  • chronic diseases requiring continuous treatment, including heart disease, epilepsy, metabolic diseases, diabetes,
  • medication:

    • oral, daily steroid therapy longer than 1 month within last 12 months,
    • at least two courses of oral steroid therapy (at least 7 days) within last 12 months,
    • oral steroid therapy longer than 7 days within last 3 months,
    • biological treatment,
    • the need to constantly take antihistamines,
    • therapy with β-blockers, angiotensin converting enzyme (ACE) inhibitors, calcium channel inhibitors,
    • pregnancy,
    • no consent to participate in the study,
    • lack of patient cooperation.

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: High dose
Experimental: high dose of sesame 20 patients
Patients will receive a high dose of sesame paste or flour (1200 mg of sesame protein) mixed with apple mousse (supposing child tolerates apple). For the transparency of the study all patients will receive the same commercially prepared apple product
Active Comparator: Low dose
Active Comparator: low dose of sesame 20 patients
Patients will receive a low dose of sesame paste or flour (300 mg of sesame protein) mixed with apple mousse (supposing child tolerates apple). For the transparency of the study all patients will receive the same commercially prepared apple product

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Tolerance of sesame
Time Frame: Up to 16 months after starting oral immunotherapy
Proportion of participants who tolerate the single dose of 4000mg sesame protein
Up to 16 months after starting oral immunotherapy

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Adverse event
Time Frame: Up to 16 months after starting oral immunotherapy
Quantity and severity of adverse effect, assessed and compared between groups, divided into mild, moderate and severe category
Up to 16 months after starting oral immunotherapy
Laboratory data
Time Frame: Up to 16 months after starting oral immunotherapy
Difference in sesame serum immunoglobulin E (IgE) level and immunoglobulin G4 (IgG4) level, compared between groups at the end of treatment
Up to 16 months after starting oral immunotherapy
Basophil activation test
Time Frame: Up to 16 months after starting oral immunotherapy
The basophil activation test (BAT) results compared between groups at the end of treatment
Up to 16 months after starting oral immunotherapy
Skin prick test (SPT)
Time Frame: Up to 16 months after starting oral immunotherapy
Change in skin prick test reactivity to sesame protein from baseline to end of treatment, compared between groups
Up to 16 months after starting oral immunotherapy
Desensitization dose
Time Frame: Up to 16 months after starting oral immunotherapy
Change in maximum tolerated dose of sesame in oral food challenge before and in the end of treatment, compared between groups
Up to 16 months after starting oral immunotherapy

Collaborators and Investigators

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

Investigators

  • Study Chair: Katarzyna Grzela, MD, PhD, Medical University of Warsaw

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)

March 31, 2022

Primary Completion (Estimated)

December 31, 2024

Study Completion (Estimated)

June 30, 2025

Study Registration Dates

First Submitted

November 24, 2021

First Submitted That Met QC Criteria

December 14, 2021

First Posted (Actual)

December 15, 2021

Study Record Updates

Last Update Posted (Actual)

March 20, 2024

Last Update Submitted That Met QC Criteria

March 18, 2024

Last Verified

March 1, 2024

More Information

Terms related to this study

Other Study ID Numbers

  • Sesame Protocol

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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