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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT02424136
Registration number
NCT02424136
Ethics application status
Date submitted
19/04/2015
Date registered
22/04/2015
Titles & IDs
Public title
PEAnut Anaphylaxis Predictors
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Scientific title
PEAnut Anaphylaxis Predictors
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Secondary ID [1]
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PEAAP (14/12/12/4.12)
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Universal Trial Number (UTN)
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Trial acronym
PEAAP
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Peanut Hypersensitivity
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Anaphylaxis
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Condition category
Condition code
Inflammatory and Immune System
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Allergies
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Cardiovascular
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0
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Diseases of the vasculature and circulation including the lymphatic system
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Cardiovascular
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0
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Other cardiovascular diseases
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Other interventions - Questionnaire
Other interventions - Peanut Skin prick test
Other interventions - Fraction of exhaled nitric oxide
Other interventions - Spirometry
Other interventions - Serum Peanut and Ara h2 specific immunoglobulin E
Other interventions - Collection of blood biomarker
Other interventions - Peanut food challenge
Other: Entire group - Children aged 2-17 years with suspected peanut allergy who require peanut food challenge to confirm clinical allergy, will be recruited for the study. They will undergo a preceding questionnaire, peanut skin prick testing, spirometry, fraction of exhaled nitric oxide (FeNO) measurement, serum peanut and Ara h2 specific immunoglobulin E (sIgE) antibodies, and collection of blood biomarker prior to food challenge. The primary endpoint will be anaphylaxis at open label peanut challenge, with the primary exposure of interest will be the serum biomarker.
Other interventions: Questionnaire
5 minute questionnaire focused on symptoms of allergic disease
Other interventions: Peanut Skin prick test
Skin prick testing with peanut antigen, according to ASCIA Skin Prick testing manual
Other interventions: Fraction of exhaled nitric oxide
Measurement of exhaled nitric oxide, according to American Thoracic Society/ European Thoracic Society (ATS/ERS) standardised procedures (Not required for those age less than 6 years).
Other interventions: Spirometry
Measurement of lung flows/volumes, according to ATS/ERS standardised procedures (Not required for those age less than 6 years).
Other interventions: Serum Peanut and Ara h2 specific immunoglobulin E
Peanut and Ara h2 specific IgE antibodies
Other interventions: Collection of blood biomarker
Correlation of blood biomarker levels in patients with successful or unsuccessful peanut food challenge
Other interventions: Peanut food challenge
Open label peanut challenge conducted according to ASCIA's peanut challenge protocol and PRACTALL consensus report
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Intervention code [1]
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Other interventions
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Blood biomarker predicting anaphylaxis at peanut food challenge
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Assessment method [1]
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The primary outcome of the project is to confirm that a novel blood biomarker has a higher diagnostic accuracy as compared to current best testing in predicting anaphylaxis at open label peanut challenge.
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Timepoint [1]
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At completion of peanut food challenge
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Secondary outcome [1]
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Blood biomarker in combination with FeNO, and/or Ara h2 sIgE predicting anaphylaxis at peanut food challenge
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Assessment method [1]
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The secondary outcome will be to determine the value of the biomarker, FeNO and Ara h2 sIgE (individually and in combination) at predicting anaphylaxis or clinical allergy at open label peanut challenge.
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Timepoint [1]
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At completion of peanut food challenge
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Eligibility
Key inclusion criteria
* Children aged 2 - 17 years with an allergy to peanut and require peanut challenge to confirm peanut allergy.
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Minimum age
2
Years
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Maximum age
17
Years
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
* Children with Peanut Skin Prick Test (SPT) wheal size greater than 10mm as these children are likely to have clinical peanut allergy (no clinical indication for food challenge).
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Study design
Purpose of the study
Diagnosis
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Allocation to intervention
NA
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Single group
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Other design features
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Phase
NA
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
22/07/2015
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
1/12/2019
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Sample size
Target
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Accrual to date
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Final
40
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Recruitment in Australia
Recruitment state(s)
NSW
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Recruitment hospital [1]
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John Hunter Children's Hospital - New Lambton
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Recruitment postcode(s) [1]
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2305 - New Lambton
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Funding & Sponsors
Primary sponsor type
Other
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Name
John Hunter Children's Hospital
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Address
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Country
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Other collaborator category [1]
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Other
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Name [1]
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Hunter Medical Research Institute, Australia
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Address [1]
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Country [1]
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Other collaborator category [2]
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Other
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Name [2]
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University of Newcastle, Australia
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Address [2]
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Other collaborator category [3]
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Other
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Name [3]
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Thrasher Research Fund
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Address [3]
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Country [3]
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Other collaborator category [4]
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Other
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Name [4]
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Hunter Childrens Research Foundation, Australia
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Address [4]
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Country [4]
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Other collaborator category [5]
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Commercial sector/industry
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Name [5]
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Aerocrine AB
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Address [5]
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Country [5]
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Ethics approval
Ethics application status
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Summary
Brief summary
Peanut allergy can be life-threatening. Current diagnostic techniques for peanut allergy have high sensitivity, but not high specificity. This clinical trial will test the validity of a novel blood biomarker (compared with current testing) as a diagnostic predictor of anaphylaxis to peanut.
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Trial website
https://clinicaltrials.gov/study/NCT02424136
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Trial related presentations / publications
Sampson HA, Gerth van Wijk R, Bindslev-Jensen C, Sicherer S, Teuber SS, Burks AW, Dubois AE, Beyer K, Eigenmann PA, Spergel JM, Werfel T, Chinchilli VM. Standardizing double-blind, placebo-controlled oral food challenges: American Academy of Allergy, Asthma & Immunology-European Academy of Allergy and Clinical Immunology PRACTALL consensus report. J Allergy Clin Immunol. 2012 Dec;130(6):1260-74. doi: 10.1016/j.jaci.2012.10.017. No abstract available. Miller MR, Hankinson J, Brusasco V, Burgos F, Casaburi R, Coates A, Crapo R, Enright P, van der Grinten CP, Gustafsson P, Jensen R, Johnson DC, MacIntyre N, McKay R, Navajas D, Pedersen OF, Pellegrino R, Viegi G, Wanger J; ATS/ERS Task Force. Standardisation of spirometry. Eur Respir J. 2005 Aug;26(2):319-38. doi: 10.1183/09031936.05.00034805. No abstract available. American Thoracic Society; European Respiratory Society. ATS/ERS recommendations for standardized procedures for the online and offline measurement of exhaled lower respiratory nitric oxide and nasal nitric oxide, 2005. Am J Respir Crit Care Med. 2005 Apr 15;171(8):912-30. doi: 10.1164/rccm.200406-710ST. No abstract available. Percival E, Bhatia R, Preece K, McEvoy M, Collison A, Mattes J. Change in exhaled nitric oxide during peanut challenge is related to severity of reaction. Allergy Asthma Clin Immunol. 2020 Jul 21;16:64. doi: 10.1186/s13223-020-00464-8. eCollection 2020.
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Public notes
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Contacts
Principal investigator
Name
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Joerg Mattes, MD
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Address
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John Hunter Children's Hospital, Australia
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for scientific queries
Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT02424136