Food AllergyBATNCT06559319
The Basophil Activation Test For Egg Allergy
An observational study of Food Allergy, run by Xia Peng at 1 site in China.
Trial summary
In this study, basophil activation test (BAT) established by the investigators' lab was evaluated for its sensitivity and specificity in child egg allergy diagnosis. Children with suspected IgE mediated allergy to egg will be recruited in the study. Specific IgE to egg allergen and BAT will be detected. Read more about this study
- Who is it for?
- Ages 4 months to 6 years
- Conditions the study is for
- Food Allergy
- What is being tested?
- blood sampling
- How many people
- 174 participants
- Where
- 1 siteChina
- Study dates
- 10 Aug 2024to 25 Mar 2027
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 4 months to 6 years
- All sexes
- Child
Study population: Children with suspected egg allergy
Who may be able to join
None listed.
Who cannot join
- 1.Patients with hematological tumors, autoimmune diseases, organ transplantation, and immunodeficiency diseases
- 2.Take immunosuppressants, immunomodulators, statins, and inject anesthetics within 3 weeks
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Evaluation Of the Basophil Activation Test in Child Egg Allergy Diagnosis
In this study, basophil activation test (BAT) established by the investigators' lab was evaluated for its sensitivity and specificity in child egg allergy diagnosis. Children with suspected IgE mediated allergy to egg will be recruited in the study. Specific IgE to egg allergen and BAT will be detected. The diagnostic accuracy of the BAT will be assessed against clinical diagnosis based on history, clinical symptoms and laboratory results.
Read the detailed description
In china, the prevalence of food allergy in in preschool children was about 7%. Diagnosis of food allergy is mainly based on a combination of clinical history, clinical manifestations and related supplementary examinations, including skin prick testing (SPT), serum specific IgE testing (sIgE), and oral food challenge (OFC). Although OFC is the gold standard for allergy diagnosis, it is rarely conducted in clinic for the low safety. Until now, serum specific IgE assays against allergen are the most commonly used in vitro diagnostic approach in China. However, specific-IgEs are sensitive, but not specific for diagnosis of food allergy. Moreover, food allergy could not be excluded when sIgE results are negative (<0.35KU/L). Thus, more accurate and safer test is needed. BAT was shown to have good accuracy for food allergy diagnosis. BAT is an ex vivo functional assay that measures by flow cytometry the degree of basophil activation after stimulation with an allergen. However, experimental strategies for BAT reported in the literatures are different. Some research even used 12 kinds of antibodies to identity basophils. In previous study, the investigators established BAT using 4 kinds of antibodies. Basophils could be distinguished well from other cells. In this study, children aged 4 months to 6 years who visit pediatric and emergency department, and are suspected with egg allergy will be included in study. Detailed information about clinical history and manifestations will be collected. Serum sIgE to food and BAT will be detected. The proposed study intends to analyze sensitivity and specificity of the established BAT according to the clinical comprehensive diagnosis results, and evaluate its efficacy to diagnose food allergy in children.
- Conditions
- Food Allergy
- Being tested
- blood sampling
- Medical subject headings
- Food Hypersensitivity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
blood samplingDiagnostic test
Venous blood is collected, and sIgE and BAT will be detected using whole blood and serum, respectively.
What is being measured
The primary outcome is the main question the study is designed to answer.
Sensitivity of the BAT
Sensitivity of the BAT compare to clinical comprehensive diagnosis with a threshold value of 5% for the BAT in a population of child egg allergy.
Sensitivity is defined as the capacity for BAT to have a positive result when comprehensive diagnosis result is also positive
Measured: 2 days
Specificity of the BAT
Specificity is defined as the capacity for BAT to have a negative result when comprehensive diagnosis result is also negative.
Measured: 2 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted19 Aug 2024
- Study start10 Aug 2024
- Primary completion25 Mar 2027 (estimated)
- Study completion25 Mar 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (16)Papers the sponsor has linked to this study.
- Other trials for Food AllergyStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Other
- Time perspective
- Prospective
- Enrolment
- 174 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Xia Peng
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor-investigator, Xia Peng, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06559319
- Sponsor's protocol ID
- 2024-117
- Acronym
- BAT
- Status last verified
- Aug 2024
- First submitted
- 15 Aug 2024
- Last updated
- 21 Aug 2024
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
Publications
Licari A, D'Auria E, De Amici M, Castagnoli R, Sacchi L, Testa G, Marseglia GL. The role of basophil activation test and component-resolved diagnostics in the workup of egg allergy in children at low risk for severe allergic reactions: A real-life study. Pediatr Allergy Immunol. 2023 Aug;34(8):e14012. doi: 10.1111/pai.14012.
PubMed 37622260Ebo DG, Hagendorens MM, Bridts CH, Schuerwegh AJ, De Clerck LS, Stevens WJ. In vitro allergy diagnosis: should we follow the flow? Clin Exp Allergy. 2004 Mar;34(3):332-9. doi: 10.1111/j.1365-2222.2004.01891.x.
PubMed 15005724Kim YH, Kim YS, Park Y, Kim SY, Kim KW, Kim HS, Sohn MH. Investigation of Basophil Activation Test for Diagnosing Milk and Egg Allergy in Younger Children. J Clin Med. 2020 Dec 5;9(12):3942. doi: 10.3390/jcm9123942.
PubMed 33291359Santos AF, Riggioni C, Agache I, Akdis CA, Akdis M, Alvarez-Perea A, Alvaro-Lozano M, Ballmer-Weber B, Barni S, Beyer K, Bindslev-Jensen C, Brough HA, Buyuktiryaki B, Chu D, Del Giacco S, Dunn-Galvin A, Eberlein B, Ebisawa M, Eigenmann P, Eiwegger T, Feeney M, Fernandez-Rivas M, Fisher HR, Fleischer DM, Giovannini M, Gray C, Hoffmann-Sommergruber K, Halken S, Hourihane JO, Jones CJ, Jutel M, Knol E, Konstantinou GN, Lack G, Lau S, Marques Mejias A, Marchisotto MJ, Meyer R, Mortz CG, Moya B, Muraro A, Nilsson C, Lopes de Oliveira LC, O'Mahony L, Papadopoulos NG, Perrett K, Peters RL, Podesta M, Poulsen LK, Roberts G, Sampson HA, Schwarze J, Smith P, Tham EH, Untersmayr E, Van Ree R, Venter C, Vickery BP, Vlieg-Boerstra B, Werfel T, Worm M, Du Toit G, Skypala I. EAACI guidelines on the diagnosis of IgE-mediated food allergy. Allergy. 2023 Dec;78(12):3057-3076. doi: 10.1111/all.15902. Epub 2023 Oct 10.
PubMed 37815205Sturm GJ, Kranzelbinder B, Sturm EM, Heinemann A, Groselj-Strele A, Aberer W. The basophil activation test in the diagnosis of allergy: technical issues and critical factors. Allergy. 2009 Sep;64(9):1319-26. doi: 10.1111/j.1398-9995.2009.02004.x. Epub 2009 Feb 20.
PubMed 19243362Valent P, Sotlar K, Blatt K, Hartmann K, Reiter A, Sadovnik I, Sperr WR, Bettelheim P, Akin C, Bauer K, George TI, Hadzijusufovic E, Wolf D, Gotlib J, Mahon FX, Metcalfe DD, Horny HP, Arock M. Proposed diagnostic criteria and classification of basophilic leukemias and related disorders. Leukemia. 2017 Apr;31(4):788-797. doi: 10.1038/leu.2017.15. Epub 2017 Jan 16.
PubMed 28090091Karasuyama H, Miyake K, Yoshikawa S, Yamanishi Y. Multifaceted roles of basophils in health and disease. J Allergy Clin Immunol. 2018 Aug;142(2):370-380. doi: 10.1016/j.jaci.2017.10.042. Epub 2017 Dec 14.
PubMed 29247714Schwager C, Kull S, Behrends J, Rockendorf N, Schocker F, Frey A, Homann A, Becker WM, Jappe U. Peanut oleosins associated with severe peanut allergy-importance of lipophilic allergens for comprehensive allergy diagnostics. J Allergy Clin Immunol. 2017 Nov;140(5):1331-1338.e8. doi: 10.1016/j.jaci.2017.02.020. Epub 2017 Mar 22.
PubMed 28342912Duan L, Celik A, Hoang JA, Schmidthaler K, So D, Yin X, Ditlof CM, Ponce M, Upton JEM, Lee JS, Hung L, Breiteneder H, Palladino C, Atkinson AR, Kim VHD, Berenjy A, Asper M, Hummel D, Wong S, Alexanian-Farr M, Magder A, Chinthrajah SR, Mukai K, Tsai M, Nadeau K, Galli SJ, Ramani AK, Szepfalusi Z, Eiwegger T. Basophil activation test shows high accuracy in the diagnosis of peanut and tree nut allergy: The Markers of Nut Allergy Study. Allergy. 2021 Jun;76(6):1800-1812. doi: 10.1111/all.14695. Epub 2020 Dec 29.
PubMed 33300157Santos AF, Alpan O, Hoffmann HJ. Basophil activation test: Mechanisms and considerations for use in clinical trials and clinical practice. Allergy. 2021 Aug;76(8):2420-2432. doi: 10.1111/all.14747. Epub 2021 Feb 27.
PubMed 33475181Keswani T, Patil SU. Basophil activation test in food allergy: is it ready for real-time? Curr Opin Allergy Clin Immunol. 2021 Oct 1;21(5):442-447. doi: 10.1097/ACI.0000000000000774.
PubMed 34374669MacGlashan D Jr. Expression of CD203c and CD63 in human basophils: relationship to differential regulation of piecemeal and anaphylactic degranulation processes. Clin Exp Allergy. 2010 Sep;40(9):1365-77. doi: 10.1111/j.1365-2222.2010.03572.x. Epub 2010 Jul 13.
PubMed 20633031Sato S, Yanagida N, Ebisawa M. How to diagnose food allergy. Curr Opin Allergy Clin Immunol. 2018 Jun;18(3):214-221. doi: 10.1097/ACI.0000000000000441.
PubMed 29601353Yu W, Freeland DMH, Nadeau KC. Food allergy: immune mechanisms, diagnosis and immunotherapy. Nat Rev Immunol. 2016 Dec;16(12):751-765. doi: 10.1038/nri.2016.111. Epub 2016 Oct 31.
PubMed 27795547Prescott SL, Pawankar R, Allen KJ, Campbell DE, Sinn JKh, Fiocchi A, Ebisawa M, Sampson HA, Beyer K, Lee BW. A global survey of changing patterns of food allergy burden in children. World Allergy Organ J. 2013 Dec 4;6(1):21. doi: 10.1186/1939-4551-6-21.
PubMed 24304599
Study at a glance
From the registry record, last updated by the sponsor on 21 Aug 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation Of the Basophil Activation Test in Child Egg Allergy Diagnosis
- ClinicalTrials.gov ID
- NCT06559319
- Acronym / sponsor ID
- BAT / 2024-117
- Conditions
- Food Allergy
- Study type
- Observational
- Recruitment status
- Active, not recruiting
- Enrolment
- 174 participants (estimated)
- Lead sponsor
- Xia PengUniversity, hospital or other
- Study start
- 10 Aug 2024 (actual)
- Primary completion
- 25 Mar 2027 (estimated)
- Study completion
- 25 Mar 2027 (estimated)
- First posted
- 19 Aug 2024 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
In this study, basophil activation test (BAT) established by the investigators' lab was evaluated for its sensitivity and specificity in child egg allergy diagnosis. Children with suspected IgE mediated allergy to egg will be recruited in the study. Specific IgE to egg allergen and BAT will be detected. The diagnostic accuracy of the BAT will be assessed against clinical diagnosis based on history, clinical symptoms and laboratory results.
Detailed description
In china, the prevalence of food allergy in in preschool children was about 7%. Diagnosis of food allergy is mainly based on a combination of clinical history, clinical manifestations and related supplementary examinations, including skin prick testing (SPT), serum specific IgE testing (sIgE), and oral food challenge (OFC). Although OFC is the gold standard for allergy diagnosis, it is rarely conducted in clinic for the low safety. Until now, serum specific IgE assays against allergen are the most commonly used in vitro diagnostic approach in China. However, specific-IgEs are sensitive, but not specific for diagnosis of food allergy. Moreover, food allergy could not be excluded when sIgE results are negative (<0.35KU/L). Thus, more accurate and safer test is needed. BAT was shown to have good accuracy for food allergy diagnosis. BAT is an ex vivo functional assay that measures by flow cytometry the degree of basophil activation after stimulation with an allergen. However, experimental strategies for BAT reported in the literatures are different. Some research even used 12 kinds of antibodies to identity basophils. In previous study, the investigators established BAT using 4 kinds of antibodies. Basophils could be distinguished well from other cells. In this study, children aged 4 months to 6 years who visit pediatric and emergency department, and are suspected with egg allergy will be included in study. Detailed information about clinical history and manifestations will be collected. Serum sIgE to food and BAT will be detected. The proposed study intends to analyze sensitivity and specificity of the established BAT according to the clinical comprehensive diagnosis results, and evaluate its efficacy to diagnose food allergy in children.
Study design
- Observational model
- Other
- Time perspective
- Prospective
Who may qualify
- Ages
- 4 months to 6 years
- Sex
- All
- Age groups
- Child
- Study population
- Children with suspected egg allergy
Key inclusion criteria (0 listed)
Key exclusion criteria (2 listed)
- 1.Patients with hematological tumors, autoimmune diseases, organ transplantation, and immunodeficiency diseases
- 2.Take immunosuppressants, immunomodulators, statins, and inject anesthetics within 3 weeks
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| blood samplingVenous blood is collected, and sIgE and BAT will be detected using whole blood and serum, respectively. | Diagnostic test | – |
Primary outcome
Sensitivity of the BAT
Time frame: 2 days
Sensitivity of the BAT compare to clinical comprehensive diagnosis with a threshold value of 5% for the BAT in a population of child egg allergy. Sensitivity is defined as the capacity for BAT to have a positive result when comprehensive diagnosis result is also positive
Specificity of the BAT
Time frame: 2 days
Specificity is defined as the capacity for BAT to have a negative result when comprehensive diagnosis result is also negative.
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 21 Aug 2024.
- Results publication: PubMed 37622260Licari A, D'Auria E, De Amici M, Castagnoli R, Sacchi L, Testa G, Marseglia GL. The role of basophil activation test and component-resolved diagnostics in the workup of egg allergy in children at low risk for severe allergic reactions: A real-life study. Pediatr Allergy Immunol. 2023 Aug;34(8):e14012. doi: 10.1111/pai.14012.
- Results publication: PubMed 15005724Ebo DG, Hagendorens MM, Bridts CH, Schuerwegh AJ, De Clerck LS, Stevens WJ. In vitro allergy diagnosis: should we follow the flow? Clin Exp Allergy. 2004 Mar;34(3):332-9. doi: 10.1111/j.1365-2222.2004.01891.x.
- Results publication: PubMed 33291359Kim YH, Kim YS, Park Y, Kim SY, Kim KW, Kim HS, Sohn MH. Investigation of Basophil Activation Test for Diagnosing Milk and Egg Allergy in Younger Children. J Clin Med. 2020 Dec 5;9(12):3942. doi: 10.3390/jcm9123942.
- Results publication: PubMed 37815205Santos AF, Riggioni C, Agache I, Akdis CA, Akdis M, Alvarez-Perea A, Alvaro-Lozano M, Ballmer-Weber B, Barni S, Beyer K, Bindslev-Jensen C, Brough HA, Buyuktiryaki B, Chu D, Del Giacco S, Dunn-Galvin A, Eberlein B, Ebisawa M, Eigenmann P, Eiwegger T, Feeney M, Fernandez-Rivas M, Fisher HR, Fleischer DM, Giovannini M, Gray C, Hoffmann-Sommergruber K, Halken S, Hourihane JO, Jones CJ, Jutel M, Knol E, Konstantinou GN, Lack G, Lau S, Marques Mejias A, Marchisotto MJ, Meyer R, Mortz CG, Moya B, Muraro A, Nilsson C, Lopes de Oliveira LC, O'Mahony L, Papadopoulos NG, Perrett K, Peters RL, Podesta M, Poulsen LK, Roberts G, Sampson HA, Schwarze J, Smith P, Tham EH, Untersmayr E, Van Ree R, Venter C, Vickery BP, Vlieg-Boerstra B, Werfel T, Worm M, Du Toit G, Skypala I. EAACI guidelines on the diagnosis of IgE-mediated food allergy. Allergy. 2023 Dec;78(12):3057-3076. doi: 10.1111/all.15902. Epub 2023 Oct 10.
- Results publication: PubMed 19243362Sturm GJ, Kranzelbinder B, Sturm EM, Heinemann A, Groselj-Strele A, Aberer W. The basophil activation test in the diagnosis of allergy: technical issues and critical factors. Allergy. 2009 Sep;64(9):1319-26. doi: 10.1111/j.1398-9995.2009.02004.x. Epub 2009 Feb 20.
- Results publication: PubMed 28090091Valent P, Sotlar K, Blatt K, Hartmann K, Reiter A, Sadovnik I, Sperr WR, Bettelheim P, Akin C, Bauer K, George TI, Hadzijusufovic E, Wolf D, Gotlib J, Mahon FX, Metcalfe DD, Horny HP, Arock M. Proposed diagnostic criteria and classification of basophilic leukemias and related disorders. Leukemia. 2017 Apr;31(4):788-797. doi: 10.1038/leu.2017.15. Epub 2017 Jan 16.
- Results publication: PubMed 29247714Karasuyama H, Miyake K, Yoshikawa S, Yamanishi Y. Multifaceted roles of basophils in health and disease. J Allergy Clin Immunol. 2018 Aug;142(2):370-380. doi: 10.1016/j.jaci.2017.10.042. Epub 2017 Dec 14.
- Results publication: PubMed 28342912Schwager C, Kull S, Behrends J, Rockendorf N, Schocker F, Frey A, Homann A, Becker WM, Jappe U. Peanut oleosins associated with severe peanut allergy-importance of lipophilic allergens for comprehensive allergy diagnostics. J Allergy Clin Immunol. 2017 Nov;140(5):1331-1338.e8. doi: 10.1016/j.jaci.2017.02.020. Epub 2017 Mar 22.
- Results publication: PubMed 33300157Duan L, Celik A, Hoang JA, Schmidthaler K, So D, Yin X, Ditlof CM, Ponce M, Upton JEM, Lee JS, Hung L, Breiteneder H, Palladino C, Atkinson AR, Kim VHD, Berenjy A, Asper M, Hummel D, Wong S, Alexanian-Farr M, Magder A, Chinthrajah SR, Mukai K, Tsai M, Nadeau K, Galli SJ, Ramani AK, Szepfalusi Z, Eiwegger T. Basophil activation test shows high accuracy in the diagnosis of peanut and tree nut allergy: The Markers of Nut Allergy Study. Allergy. 2021 Jun;76(6):1800-1812. doi: 10.1111/all.14695. Epub 2020 Dec 29.
- Results publication: PubMed 33475181Santos AF, Alpan O, Hoffmann HJ. Basophil activation test: Mechanisms and considerations for use in clinical trials and clinical practice. Allergy. 2021 Aug;76(8):2420-2432. doi: 10.1111/all.14747. Epub 2021 Feb 27.
- Results publication: PubMed 34374669Keswani T, Patil SU. Basophil activation test in food allergy: is it ready for real-time? Curr Opin Allergy Clin Immunol. 2021 Oct 1;21(5):442-447. doi: 10.1097/ACI.0000000000000774.
- Results publication: PubMed 20633031MacGlashan D Jr. Expression of CD203c and CD63 in human basophils: relationship to differential regulation of piecemeal and anaphylactic degranulation processes. Clin Exp Allergy. 2010 Sep;40(9):1365-77. doi: 10.1111/j.1365-2222.2010.03572.x. Epub 2010 Jul 13.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Food Allergy, run by Xia Peng at 1 site in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 0 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: under way, not looking for participants, as of the sponsor's last update on 21 Aug 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Sensitivity of the BAT (time frame: 2 days). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT06559319, which also lists 16 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Aug 2024.