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Étude d'histoire naturelle du déficit en GATA2 et des troubles apparentés

L'histoire naturelle du déficit en GATA2 et des troubles apparentés

Background:

- GATA2 deficiency is a genetic disorder that can cause problems with a person s immune system and other body systems. Some people who have this disorder develop few problems from it. Others can have a wide range of health problems, from skin problems, to hearing loss, to cancer. These problems can happen at any age. Researchers want to study GATA2 deficiency to better understand what types of health problems it can cause, and why it causes problems in some people but not others, and at different ages.

Objectives:

- To improve understanding of GATA2 deficiency so there can be better diagnostic tests and treatments in the future.

Eligibility:

- People 2 years of age or older who have a GATA2 gene mutation or certain health conditions that are commonly seen in people with this mutation and their blood relatives.

Design:

  • Participants will be screened with a physical exam and medical history. Blood and urine samples will be collected to see whether participants have the GATA2 genetic mutation. Several other tests may be recommended, but participants can decline to take them.
  • Participants will be eligible to receive standard care for GATA2 deficiency through this protocol. They may be eligible for other clinical trials at the National Institutes of Health as well.
  • Participants will have regular study visits once a year to evaluate their GATA2 deficiency. Participants will take part in the study for at least 3 years and up to 15 years. At these follow-up visits, participants will fill out a questionnaire and take a physical exam and blood tests. Other tests may be performed as needed.

Aperçu de l'étude

Statut

Recrutement

Les conditions

Description détaillée

Mutations in GATA2, a critical hematopoietic transcription factor, underlie a complex congenital disorder characterized by immunodeficiency, bone marrow failure, and lymphatic/vascular dysfunction. Patients with GATA2 deficiency may suffer from a striking variety of diseases including severe and recurrent infections, myelodysplasia/leukemia, pulmonary alveolar proteinosis, lymphedema, sensorineural hearing loss, and possibly susceptibility to other malignancies, autoimmune disorders, thrombotic events, and miscarriage. Mutations in GATA2 appear to be fully penetrant, but expressivity is remarkably variable, even among related individuals. Disease may also manifest at nearly any age ranging from early childhood to late adulthood, the reasons for which remain poorly understood.

While considerable progress has been made towards better understanding this complex congenital disorder, many important questions remain unanswered: What is the full spectrum of clinical disease and the associated pathophysiology? What accounts for the remarkable variability in age of onset and clinical phenotype? What are the optimal strategies for disease diagnosis and management? This natural history protocol is designed to further characterize the clinical phenotype of GATA2 deficiency, better understand the reasons for phenotypic variability, better understand disease progression over time, standardize the diagnostic evaluation, and facilitate the screening of at risk relatives. Up to 500 males and females greater than or equal to 2 years old with proven mutations in GATA2 or clinical and laboratory characteristics strongly consistent with GATA2 deficiency will initially undergo a series of baseline laboratory tests and diagnostic procedures at the NIH. Follow-up laboratory testing will be conducted at yearly visits; additional follow-up diagnostic procedures will be conducted based on clinical need.

Type d'étude

Observationnel

Inscription (Estimé)

600

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Sauvegarde des contacts de l'étude

Lieux d'étude

    • Maryland
      • Bethesda, Maryland, États-Unis, 20892
        • Recrutement
        • National Institutes of Health Clinical Center

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

2 ans à 100 ans (Enfant, Adulte, Adulte plus âgé)

Accepte les volontaires sains

Oui

Sexes éligibles pour l'étude

Tout

Méthode d'échantillonnage

Échantillon non probabiliste

Population étudiée

Patients >=2 years old with known mutations in GATA2 or those with clinical and laboratory characteristics strongly consistent with GATA2 deficiency will be enrolled along with any of their blood relatives.

La description

  • INCLUSION CRITERIA:

Males and females greater than or equal to 2 years old must meet the following criteria to be eligible for participation in this study:

  • Have a mutation in GATA2 proven by genetic testing (previous test results will be accepted) OR meet both of the following criteria:

    • Clinical characteristics strongly consistent with GATA2 deficiency per the following criteria and at the discretion of the principal investigator (PI). Individuals without a GATA2 mutation must have a past or present history of 1 or more of the following to be considered for study enrollment:

      • Disseminated NTM or invasive fungal infection.
      • Severe or recurrent HPV or herpesvirus infection.
      • MDS, AML, or CMML.
      • Biopsy-proven PAP.
    • Laboratory characteristics strongly consistent with GATA2 deficiency per the following criteria. Individuals without a GATA2 mutation must have 1 or more of the following to be considered for study enrollment:

      • Absolute monocyte count <240 cells/microL.
      • Absolute B lymphocyte count <60 cells/microL.
      • Absolute NK lymphocyte count <126 cells/microL.
  • Agree to undergo genetic testing.

  • Allow their samples to be stored for future research.

RELATIVE INCLUSION CRITERIA:

Blood relatives, male or female, greater than or equal to 2 years old, of any patient on this study. If a relative is positive for GATA2 then they could become a patient on the study.

SUBJECT EXCLUSION CRITERIA:

Individuals with any condition or who are taking any medications that, in the opinion of the investigator, contraindicates participation in the study will be excluded.

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Modèles d'observation: COHORT
  • Perspectives temporelles: PROSPECTIVE

Cohortes et interventions

Groupe / Cohorte
Patient Relatives

Blood relatives of enrolled patients.

Patients

Patients with known mutations in GATA2 or those with clinical and laboratory characteristics strongly consistent with GATA2 deficiency.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Prospectively follow patients with GATA2 deficiency or phenotypic characteristics strongly consistent with GATA2 deficiency to characterize the full spectrum of clinical disease, better understand the reasons for phenotypic variability, better u...
Délai: ongoing

Collecting information on GATA2 deficiency.

ongoing

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Les enquêteurs

  • Chercheur principal: Steven M Holland, M.D., National Institute of Allergy and Infectious Diseases (NIAID)

Publications et liens utiles

La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.

Publications générales

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

26 août 2013

Achèvement primaire (Estimé)

31 mars 2028

Dates d'inscription aux études

Première soumission

18 juillet 2013

Première soumission répondant aux critères de contrôle qualité

18 juillet 2013

Première publication (Estimé)

23 juillet 2013

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

29 octobre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

28 octobre 2026

Dernière vérification

1 septembre 2026

Plus d'information

Termes liés à cette étude

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

OUI

Description du régime IPD

Relevant individual participant data collected during the trial, after deidentification.

Délai de partage IPD

Available on reasonable request after completion of the trial. No end date.

Critères d'accès au partage IPD

It will be shared with researchers wishing to access the date for research project. To gain access, data requestors will need to sign Data Access/Use Agreement and provide supporting documentation.

Type d'informations de prise en charge du partage d'IPD

  • SÈVE

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

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