Esta página foi traduzida automaticamente e a precisão da tradução não é garantida. Por favor, consulte o versão em inglês para um texto fonte.

FASC: Fish Allergy in Spanish Children - A Study of New Cases of Fish Allergy in Children and Adolescents (FASC)

22 de julho de 2026 atualizado por: Carmelo Escudero

IgE-Mediated Fish Allergy in Spanish Children and Adolescents: A Multicenter Prospective Study of New-Onset Cases and Sensitization Profiles.

Fish allergy is one of the leading causes of food-induced allergic reactions in children, but the clinical presentation and patterns of sensitization vary considerably among patients and geographical regions. This prospective multicenter observational study aims to characterize children and adolescents with newly diagnosed IgE-mediated fish allergy in Spain.

Clinical information, diagnostic test results, and molecular sensitization profiles will be collected using standardized procedures across participating centers. Molecular allergy assessment will include component-resolved diagnostics to evaluate sensitization to major fish allergens and other relevant allergenic protein families. The study will also assess disease severity, quality of life, and regional differences in sensitization patterns.

The results are expected to improve the understanding of pediatric fish allergy in Spain and contribute to more accurate diagnosis, risk assessment, and personalized management of affected patients.

Visão geral do estudo

Status

Ainda não está recrutando

Condições

Descrição detalhada

Fish allergy is a major cause of IgE-mediated food allergy in children and is associated with a wide spectrum of clinical manifestations, ranging from mild reactions to severe anaphylaxis. Current knowledge of pediatric fish allergy is limited by geographical differences in dietary habits, fish species consumed, and patterns of allergen sensitization. Although component-resolved diagnostics have improved the characterization of fish allergy, comprehensive multicenter studies in children remain scarce.

The FASC study is a prospective, multicenter, observational study conducted in Spain to characterize children and adolescents with newly diagnosed IgE-mediated fish allergy. Consecutive eligible patients will be recruited in participating pediatric allergy units using standardized diagnostic and data collection procedures. Clinical information, allergy history, skin testing, serum specific IgE measurements, and molecular sensitization profiles will be collected. When clinically indicated, oral food challenges will be performed according to international recommendations and routine clinical practice.

The study aims to describe clinical phenotypes, molecular sensitization patterns, disease severity, quality of life, and geographical variability across Spain. The findings are expected to improve the understanding of pediatric fish allergy, support the identification of clinically relevant sensitization profiles, and contribute to more accurate diagnosis and individualized patient management.

Tipo de estudo

Observacional

Inscrição (Estimado)

120

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

  • Filho

Aceita Voluntários Saudáveis

Não

Método de amostragem

Amostra Não Probabilística

População do estudo

The study population consists of children and adolescents evaluated for suspected fish allergy in the Allergy Units of participating hospitals across Spain. Participants will be recruited consecutively from routine clinical practice at tertiary referral centers that are members of the Spanish Society of Allergy and Clinical Immunology (SEAIC). The study includes patients from multiple geographical regions, providing a representative sample of the Spanish pediatric population referred for specialized allergy assessment.

Descrição

Inclusion Criteria:

  • Children and adolescents aged 0 to 17 years (up to 18 years of age).
  • First clinical episode compatible with IgE-mediated fish allergy.
  • Evidence of allergic sensitization demonstrated by at least one of the following:
  • Positive skin prick test (wheal diameter ≥3 mm compared with the negative control); or
  • Serum specific IgE ≥0.35 kUA/L to at least one fish species or fish allergen component.
  • Written informed consent obtained from the parent(s) or legal guardian(s), and assent from participants aged 12 years or older, when applicable.

Exclusion Criteria:

  • Age ≥18 years.
  • Non-IgE-mediated fish allergy (e.g., fish-induced FPIES).
  • Severe dermographism, chronic urticaria, or severe atopic dermatitis preventing reliable interpretation of skin prick testing.
  • Inability to complete the diagnostic procedures required by the study.
  • Absence of informed consent or, when applicable, participant assent.

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Prevalence of sensitization to clinically relevant fish allergen components.
Prazo: Baseline (Day 1)
Distribution of molecular sensitization profiles to clinically relevant fish allergen components and allergenic protein families in children and adolescents with newly diagnosed IgE-mediated fish allergy, as determined by component-resolved diagnostics performed at study enrollment.
Baseline (Day 1)

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Sensitization to individual fish allergen components
Prazo: Baseline (Day 1)
Frequency and distribution of sensitization to individual fish allergen components and allergenic protein families measured by component-resolved diagnostics.
Baseline (Day 1)
Specific IgE sensitization profile
Prazo: Baseline (Day 1)
Serum specific IgE sensitization to fish species and allergenic components determined using standardized laboratory methods.
Baseline (Day 1)
Oral food challenge outcome
Prazo: During the diagnostic evaluation (up to 3 months after baseline (Day 1))
Results of oral food challenges, including confirmation of clinical allergy and identification of tolerated fish species, when clinically indicated.
During the diagnostic evaluation (up to 3 months after baseline (Day 1))
Health-related quality of life
Prazo: Baseline (Day 1) and at completion of the diagnostic evaluation (up to 3 months after baseline (Day 1))
Health-related quality of life assessed using validated food allergy-specific quality-of-life questionnaires.
Baseline (Day 1) and at completion of the diagnostic evaluation (up to 3 months after baseline (Day 1))
Geographical variability in sensitization profiles
Prazo: Through study completion, an average of 18 months
Comparison of molecular sensitization profiles and clinical characteristics across participating regions in Spain.
Through study completion, an average of 18 months

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Estimado)

1 de outubro de 2026

Conclusão Primária (Estimado)

30 de dezembro de 2027

Conclusão do estudo (Estimado)

30 de junho de 2028

Datas de inscrição no estudo

Enviado pela primeira vez

18 de julho de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

22 de julho de 2026

Primeira postagem (Real)

27 de julho de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

27 de julho de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

22 de julho de 2026

Última verificação

1 de julho de 2026

Mais Informações

Termos relacionados a este estudo

Outros números de identificação do estudo

  • FASC-2026-001
  • R-0012/26 (Outro identificador: Clinical Research Ethics Committee (CEIm), Hospital Infantil Universitario Niño Jesús, Madrid, Spain)

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .