An Observational Study of Childhood Food Allergy
A Prospective Cohort Study of Immune Mechanisms, Genetic Factors, and Clinical and Environmental Characteristics Associated With the Occurrence and Clinical Outcome of Food Allergy (CoFAR2)
1 other identifier
observational
515
1 country
5
Brief Summary
The purpose of this study is to observe the natural course of food allergy, including both the development of peanut allergy in infants at high risk for developing this allergy, and the resolution of both egg and cow's milk allergy.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Jul 2006
Longer than P75 for all trials
5 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 1, 2006
CompletedFirst Submitted
Initial submission to the registry
July 21, 2006
CompletedFirst Posted
Study publicly available on registry
July 25, 2006
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
August 1, 2016
CompletedSeptember 28, 2016
September 1, 2016
9.1 years
July 21, 2006
September 26, 2016
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Peanut allergy after the age of three years
diagnosed by generally accepted, \> 95% accurate, clinical criteria such as oral food challenge.
Year 10
Secondary Outcomes (6)
Resolution of milk allergy after the age of three years
Year 10
Resolution of egg allergy after the age of three years
Year 10
Resolution of peanut allergy after the age of three years
Year 10
Resolution of a positive test to peanut after the age of three years (suspected allergy category)
Year 10
Development/persistence of milk allergy after the age of three years
Year 10
- +1 more secondary outcomes
Study Arms (3)
Children with food allergy
340 longitudinally followed children with egg and/or milk allergy without elevated peanut specific Immunoglobulin E (IgE), less than 5 kUA/L
Full sibling controls for genetic studies
Approximately 250 not age matched full siblings (i.e., non-step siblings, non-half siblings) will be recruited as an additional control group for genetic studies.
Full sibling controls for mechanistic studies
Approximately 50 not age matched full siblings (i.e., non-step siblings, non-half siblings) will be recruited as an additional control group for mechanistic studies. A subset of this cohort will be without food allergy,
Eligibility Criteria
Children with milk or egg allergy who are at risk for peanut allergy
You may qualify if:
- Atopic dermatitis evaluation
- Either
- A convincing clinical history of cow's milk (and/or egg) allergy and a positive prick skin test (≥ 3mm larger than the negative control) to cow's milk (and/or egg, if egg allergy history), or
- Moderate to severe atopic dermatitis at the time of enrollment (or by a history prior to removal of milk and/or egg from the maternal (if breastfed) or infant diet) and a positive prick skin test to milk or egg, or
- Positive oral food challenge, prior to study entry, to either milk or egg with positive skin test
- Written informed consent from parent/guardian
- Willing to submit specimen for central laboratory plasma peanut IgE
You may not qualify if:
- Participants who meet any of these criteria are not eligible for enrollment as study participants:
- Chronic disease (other than asthma, atopic dermatitis, rhinitis) requiring therapy (e.g., heart disease, diabetes)
- Participation in an interventional study\*
- Inability to discontinue antihistamines for routine tests
- Children (other than sibling controls) from families with one child already participating in the observational study
- Confirmed or convincing evidence of peanut allergy
- No history of food allergy (unrestricted diet), asthma, atopic dermatitis, allergic rhinitis (for blood sample)
- Full sibling of child enrolled in study
- Signed informed consent/assent as applicable
- History of chronic anemia
- Disease or medication that impair immune responses
- Full sibling of child enrolled in study
- Signed informed consent/assent as applicable
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (5)
University of Arkansas for Medical Sciences
Little Rock, Arkansas, 72205, United States
National Jewish Health
Denver, Colorado, 80206, United States
Johns Hopkins University School of Medicine
Baltimore, Maryland, 21287, United States
Icahn School of Medicine at Mount Sinai
New York, New York, 10029, United States
University of North Carolina
Chapel Hill, North Carolina, 27599, United States
Related Publications (10)
Bjorksten B. Genetic and environmental risk factors for the development of food allergy. Curr Opin Allergy Clin Immunol. 2005 Jun;5(3):249-53. doi: 10.1097/01.all.0000168790.82206.17.
PMID: 15864084BACKGROUNDGrundy J, Matthews S, Bateman B, Dean T, Arshad SH. Rising prevalence of allergy to peanut in children: Data from 2 sequential cohorts. J Allergy Clin Immunol. 2002 Nov;110(5):784-9. doi: 10.1067/mai.2002.128802.
PMID: 12417889BACKGROUNDLack G, Fox D, Northstone K, Golding J; Avon Longitudinal Study of Parents and Children Study Team. Factors associated with the development of peanut allergy in childhood. N Engl J Med. 2003 Mar 13;348(11):977-85. doi: 10.1056/NEJMoa013536. Epub 2003 Mar 10.
PMID: 12637607BACKGROUNDSicherer SH, Noone SA, Munoz-Furlong A. The impact of childhood food allergy on quality of life. Ann Allergy Asthma Immunol. 2001 Dec;87(6):461-4. doi: 10.1016/S1081-1206(10)62258-2.
PMID: 11770692BACKGROUNDSicherer SH, Wood RA, Vickery BP, Jones SM, Liu AH, Fleischer DM, Dawson P, Mayer L, Burks AW, Grishin A, Stablein D, Sampson HA. The natural history of egg allergy in an observational cohort. J Allergy Clin Immunol. 2014 Feb;133(2):492-9. doi: 10.1016/j.jaci.2013.12.1041.
PMID: 24636473RESULTBrough HA, Liu AH, Sicherer S, Makinson K, Douiri A, Brown SJ, Stephens AC, Irwin McLean WH, Turcanu V, Wood RA, Jones SM, Burks W, Dawson P, Stablein D, Sampson H, Lack G. Atopic dermatitis increases the effect of exposure to peanut antigen in dust on peanut sensitization and likely peanut allergy. J Allergy Clin Immunol. 2015 Jan;135(1):164-70. doi: 10.1016/j.jaci.2014.10.007. Epub 2014 Nov 18.
PMID: 25457149RESULTWood RA, Sicherer SH, Vickery BP, Jones SM, Liu AH, Fleischer DM, Henning AK, Mayer L, Burks AW, Grishin A, Stablein D, Sampson HA. The natural history of milk allergy in an observational cohort. J Allergy Clin Immunol. 2013 Mar;131(3):805-12. doi: 10.1016/j.jaci.2012.10.060. Epub 2012 Dec 28.
PMID: 23273958RESULTFleischer DM, Perry TT, Atkins D, Wood RA, Burks AW, Jones SM, Henning AK, Stablein D, Sampson HA, Sicherer SH. Allergic reactions to foods in preschool-aged children in a prospective observational food allergy study. Pediatrics. 2012 Jul;130(1):e25-32. doi: 10.1542/peds.2011-1762. Epub 2012 Jun 25.
PMID: 22732173RESULTSicherer SH, Wood RA, Stablein D, Lindblad R, Burks AW, Liu AH, Jones SM, Fleischer DM, Leung DY, Sampson HA. Maternal consumption of peanut during pregnancy is associated with peanut sensitization in atopic infants. J Allergy Clin Immunol. 2010 Dec;126(6):1191-7. doi: 10.1016/j.jaci.2010.08.036. Epub 2010 Oct 28.
PMID: 21035177RESULTSicherer SH, Wood RA, Stablein D, Burks AW, Liu AH, Jones SM, Fleischer DM, Leung DY, Grishin A, Mayer L, Shreffler W, Lindblad R, Sampson HA. Immunologic features of infants with milk or egg allergy enrolled in an observational study (Consortium of Food Allergy Research) of food allergy. J Allergy Clin Immunol. 2010 May;125(5):1077-1083.e8. doi: 10.1016/j.jaci.2010.02.038.
PMID: 20451041RESULT
Related Links
Biospecimen
Buccal swab (DNA)
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Scott Sicherer, MD
Jaffe Food Allergy Institute, Icahn School of at Mount Sinai
- PRINCIPAL INVESTIGATOR
Hugh Sampson, MD
Pediatric Allergy and Immunology, Icahn School of at Mount Sinai
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- NIH
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 21, 2006
First Posted
July 25, 2006
Study Start
July 1, 2006
Primary Completion
August 1, 2015
Study Completion
August 1, 2016
Last Updated
September 28, 2016
Record last verified: 2016-09