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Une étude chez les enfants et les adultes atteints de purpura thrombotique thrombocytopénique congénital (cTTP) traités par Adzynma

5 novembre 2026 mis à jour par: Takeda

Une étude de sécurité post-autorisation (PASS) pour évaluer davantage la sécurité en conditions réelles chez les patients atteints de purpura thrombotique thrombocytopénique congénital (PTTC) traités par Adzynma

Congenital thrombotic thrombocytopenic purpura (cTTP) is a rare blood disorder that some people are born with. It is caused by a problem in a gene passed down from parents to children, which affects the body's ability to produce a enzyme called ADAMTS13. This enzyme helps to cut down a larger form of protein called von Willebrand Factor (VWF). People with cTTP have low levels of ADAMTS13. Without ADAMTS13, large forms of vWF build up and cause blood clots in small blood vessels. These clots can block blood flow to vital organs, causing serious health problems. Adzynma is a human ADAMTS13 protein made in the laboratory. It works the same way as natural ADAMTS13 does and may provide higher levels of ADAMTS13.

The main aim of this study is to learn more about the risk of children and adults with cTTP treated with Adzynma developing antibodies that prevent Adzynma from working properly (called neutralizing antibodies) within 6 months after the first treatment and to understand the risk of allergic reactions within 7 days of the first treatment with Adzynma. Other aims are to better understand how safe treatment with Adzynma is over a longer period of time (called long-term safety) in children and adults with cTTP and to gather information about pregnancies and babies of women who have received Adzynma while pregnant.

Only data already available in the medical records of the people who received Adzynma for the treatment of cTTP in normal clinical practice will be reviewed and collected during this study.

Aperçu de l'étude

Statut

Recrutement

Les conditions

Intervention / Traitement

Type d'étude

Observationnel

Inscription (Estimé)

50

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

Lieux d'étude

  • Allemagne
      • Bonn, Allemagne, 53127
        • Recrutement
        • Universitatsklinikum Bonn
        • Contact:
        • Chercheur principal:
          • Ruehl Heiko
      • Cologne, Allemagne, 50937
        • Recrutement
        • Universitaetsklinikum Koeln
        • Contact:
        • Chercheur principal:
          • Kuehne Lucas
      • Jena, Allemagne, 7743
      • Leipzig, Allemagne, 4103
      • München, Allemagne
      • München, Allemagne, 81675
  • L'Autriche
      • Vienna, L'Autriche, 1090

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

  • Enfant
  • Adulte
  • Adulte plus âgé

Accepte les volontaires sains

Non

Sexes éligibles pour l'étude

Tout

Méthode d'échantillonnage

Échantillon non probabiliste

Population étudiée

Pediatric and adult participants who have received Adzynma for the treatment of cTTP, either prophylactically or as on-demand therapy for acute episodes-including those who became pregnant during Adzynma treatment.

La description

Inclusion criteria:

  1. Is diagnosed with cTTP.
  2. Had received commercially available Adzynma treatment for cTTP within the eligibility period of which there must be a recorded date and dose of at least one Adzynma administration in their medical chart.
  3. Provides a signed informed consent form (informed consent form [ICF]; or assent and consent forms, if applicable), in accordance with local ethical and institutional requirements.

Exclusion criteria:

  1. Has a history or presence of a functional ADAMTS13 inhibitor (that is, neutralizing antibodies to ADAMTS13/rADAMTS13).
  2. Has concurrent use of an investigational drug or is enrolled in another clinical trial at the time of index Adzynma infusion.

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: RETROSPECTIVE

Cohortes et interventions

Groupe / Cohorte
Intervention / Traitement
All Participants

Data of participants who have received Adzynma for the treatment of cTTP will be collected retrospectively from medical records for approximately 5 years.
Autre: No Intervention

This is a non-interventional study.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Number of Participants With Hypersensitivity Reactions Following the Index Adzynma Infusions
Délai: Up to 6 months following the index Adzynma infusion

Index infusion is defined as the first Adzynma infusion date recorded in the medical record using commercially available Adzynma (excluding doses received in clinical studies or early access program).
Up to 6 months following the index Adzynma infusion
Number of Participants With Neutralizing Antibodies to ADAMTS13 Following the Index Adzynma Infusions
Délai: Up to 6 months following the index Adzynma infusion

Number of participants with neutralizing antibodies to ADAMTS13 following the index Adzynma infusions will be reported.
Up to 6 months following the index Adzynma infusion

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Number of Participants With Long Term Safety Risk of Hypersensitivity Reactions Following the Index Adzynma Infusion
Délai: Up to 6 months of follow-up time from the index Adzynma infusion

Number of participants with long term safety risk of hypersensitivity reactions following the index Adzynma infusion will be reported.
Up to 6 months of follow-up time from the index Adzynma infusion
Number of Participants With Risk of Hypersensitivity Reactions After Each Administration of Adzynma Following the Index Infusion
Délai: Up to 7 days after each administration of Adzynma

Number of participants with risk of hypersensitivity reactions after each administration of Adzynma following the index infusion will be reported.
Up to 7 days after each administration of Adzynma
Number of Participants With Treatment-emergent Adverse Events (TEAEs)
Délai: From start of the study drug administration up to 5.5 years

TEAE is defined as any event emerging or manifesting at or after the initiation of treatment with a study intervention or medicinal product or any existing event that worsens in either intensity or frequency following exposure to the study intervention or medicinal product.
From start of the study drug administration up to 5.5 years
Gestational age at the Time of Infant Birth
Délai: At birth

Gestational age at the time of infant birth will be reported.
At birth
Number of Participants With Spontaneous Abortion
Délai: Up to 5.5 years

Spontaneous abortion is defined as pregnancy loss before 20 weeks of gestation.
Up to 5.5 years
Number of Participants With Stillbirth
Délai: Up to 5.5 years

Stillbirth is defined as a fetal death after 20 weeks of gestation.
Up to 5.5 years
Number of Participants With Induced Abortion
Délai: Up to 5.5 years

Number of participants with induced abortion will be reported.
Up to 5.5 years
Number of Participants With Live Birth
Délai: Up to 5.5 years

Number of participants with live birth will be reported.
Up to 5.5 years
Number of Participants With any Pregnancy Related Complications
Délai: Up to 5.5 years

Number of participants with any pregnancy related complications will be reported.
Up to 5.5 years
Number of Participants Categorized According to Gestational age of Greater Than or Equal to (>=) 37 Gestational Weeks and Less Than (<) 37 Gestational Weeks at Birth
Délai: At birth

Number of participants categorized according to gestational age of greater than or equal to (>=) 37 gestational weeks and less than (<) 37 gestational weeks at birth will be reported.
At birth
Number of Infants Categorized According to Year of Birth
Délai: Up to 5.5 years

Number of infants categorized according to year of birth will be reported.
Up to 5.5 years
Number of Infants With Normal Birth Weight
Délai: Up to 5.5 years

Number of infants with normal birth weight will be reported.
Up to 5.5 years
Number of Infants With Small for Gestational Age (SGA)
Délai: Up to 5.5 years

Small for gestational age is defined as birth size (weight, length or head circumference) less than the 10th centile for sex and gestational age.
Up to 5.5 years
Number of Infants With Congenital Anomaly Detected at the Time of Birth
Délai: At birth

Number of infants with congenital anomaly detected at the time of birth will be reported.
At birth
Number of Participants by Breastfeeding Status While Receiving Adzynma
Délai: Up to 5.5 years

Breastfeeding status during Adzynma treatment will be assessed and categorized based on response (Yes, No, or Unknown).
Up to 5.5 years
Number of Infant Categorized by Growth and Development Outcomes
Délai: Up to 5.5 years

Number of infants categorized by growth and development outcomes (normal, abnormal [specify], or unknown) will be reported.
Up to 5.5 years

Collaborateurs et enquêteurs

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

Parrainer

Takeda

Les enquêteurs

  • Directeur d'études: Study Director, Takeda

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.

Liens utiles

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 mai 2026

Achèvement primaire (Estimé)

1 avril 2030

Achèvement de l'étude (Estimé)

1 avril 2030

Dates d'inscription aux études

Première soumission

13 janvier 2026

Première soumission répondant aux critères de contrôle qualité

13 janvier 2026

Première publication (Réel)

20 janvier 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

6 novembre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

5 novembre 2026

Dernière vérification

1 novembre 2026

Plus d'information

Termes liés à cette étude

Mots clés

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • TAK-755-4007
  • EUPAS1000000870 (Autre identifiant: EU PAS)

Plan pour les données individuelles des participants (IPD)

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

OUI

Description du régime IPD

Takeda provides access to the de-identified individual participant data (IPD) for eligible studies to aid qualified researchers in addressing legitimate scientific objectives (Takeda's data sharing commitment is available on https://clinicaltrials.takeda.com/takedas-commitment?commitment=5). These IPDs will be provided in a secure research environment following approval of a data sharing request, and under the terms of a data sharing agreement.

Critères d'accès au partage IPD

IPD from eligible studies will be shared with qualified researchers according to the criteria and process described on https://vivli.org/ourmember/takeda/. For approved requests, the researchers will be provided access to anonymized data (to respect patient privacy in line with applicable laws and regulations) and with information necessary to address the research objectives under the terms of a data sharing agreement.

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

  • PROTOCOLE D'ÉTUDE
  • SÈVE
  • CIF
  • RSE

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

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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