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Epidemiology of Pecan Nut Allergy

Study Purpose

IgE-mediated food allergy can manifest with reactions ranging from hives to anaphylactic shock. The diagnosis is based on the confirmation of sensitization to the food allergen by skin tests (prick) and the determination of specific IgE directed against the food source and molecular allergens. The gold standard remains the oral provocation test, which is performed in a hospital environment. Once the diagnosis is made, an elimination diet is still considered as the cornerstone of treatment for most food allergies. While some allergies, such as cow's milk or egg, tend to resolve spontaneously, others, such as allergy to pecan nuts, show a tendency to be persistent. In addition, pecan allergy is often characterized by potentially serious clinical reactions, compared to other foods, which can even be life threatening. In our clinical practice, the investigators found that patients with allergies to pecan nuts often present with severe hypersensitivity reactions when challenged orally to this food. Beyond this information, there are few studies regarding pecans. The investigators decided to retrospectively evaluate the results of oral food challenge and of the allergy work-up in our patients sensitized and allergic to pecan nuts, to better understand the current epidemiology of such food allergy.

Recruitment Criteria

Accepts Healthy Volunteers

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

Yes
Study Type

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.


An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.


Searching Both is inclusive of interventional and observational studies.

Observational
Eligible Ages 5 Years - 70 Years
Gender All
More Inclusion & Exclusion Criteria

Inclusion criteria:

  • - Patients assessed for pecan allergy, through oral food challenge, from January 2000 to december 2021, at the University Hospital of Montpellier.
  • - Patients with a positive skin prick test and/or positive specific IgE to pecan nut.

Exclusion criteria:

  • - Patients not affiliated to French Social Security.
  • - Patients not capable of understanding French.
- Patients sensitized to pecan nut, who did not perform an oral food challenge to this food allergen

Trial Details

Trial ID:

This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.

NCT05185362
Phase

Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.

Lead Sponsor

The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

University Hospital, Montpellier
Principal Investigator

The person who is responsible for the scientific and technical direction of the entire clinical study.

Davide CAIMMI
Principal Investigator Affiliation University Hospital, Montpellier
Agency Class

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Other
Overall Status Recruiting
Countries France
Conditions

The disease, disorder, syndrome, illness, or injury that is being studied.

Allergic Reaction

Contact a Trial Team

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International Sites

Uhmontpellier, Montpellier, France

Status

Recruiting

Address

Uhmontpellier

Montpellier, , 34295

Site Contact

Davide CAIMMI, MD

davide.caimmi@gmail.com

467336112 #33

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