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Background: The need for an oral food challenge (OFC) surrogate is growing in line with the continuous increase in the prevalence and severity of paediatric food allergy. The basophil activation test (BAT) has recently been reported as a promising tool for predicting the outcome of OFC in children.
Objective: We make the hypothesis that BAT might improve the sensitivity of food allergy diagnosis and spare part of current OFC in paediatric patients attending allergy departments in Marseille APHM University hospitals.
Methods: BAT will be performed in parallel with OFC in 100 paediatric patients receiving OFC during a diagnostic or follow-up procedure.
Expected results: Good concordance of BAT and OFC results leading to potential OFC replacement by BAT in at least 50% of the study population
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Children receiving OFC during a diagnost | Experimental | paediatric patients attending food allergy |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| The basophil activation test (BAT) | Diagnostic Test | Single sample: 5 mL of venous blood |
|
| Measure | Description | Time Frame |
|---|---|---|
| BAT positive and negative predictive values as compared with OFC | BAT versus OFC | 2 years |
| Measure | Description | Time Frame |
|---|---|---|
| BAT quantitative results as compared with the minimal reacting dose for OFC | BAT versus OFC | 2 years |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Urielle Desalbres | Assistance Publique Hopitaux De Marseille | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Assistance Publique Hopitaux de Marseille | Marseille | 13354 | France |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 32387696 | Derived | Arif-Lusson R, Agabriel C, Carsin A, Cabon I, Senechal H, Poncet P, Vitte J, Busnel JM. Streamlining basophil activation testing to enable assay miniaturization and automation of sample preparation. J Immunol Methods. 2020 Jun-Jul;481-482:112793. doi: 10.1016/j.jim.2020.112793. Epub 2020 May 6. |
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| ID | Term |
|---|---|
| D005512 | Food Hypersensitivity |
| ID | Term |
|---|---|
| D006969 | Hypersensitivity, Immediate |
| D006967 | Hypersensitivity |
| D007154 | Immune System Diseases |
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