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En studie på barn och vuxna med medfödd trombocytopen purpura (cTTP) behandlade med Adzynma

1 oktober 2026 uppdaterad av: Takeda

En postauktoriserad säkerhetsstudie (PASS) för att ytterligare utvärdera den verkliga världens säkerhet hos patienter med medfödd trombotisk trombocytopen purpura (cTTP) behandlade med 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.

Studieöversikt

Status

Rekrytering

Betingelser

Intervention / Behandling

Studietyp

Observationell

Inskrivning (Beräknad)

50

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

Studieorter

  • Tyskland
      • Bonn, Tyskland, 53127
        • Rekrytering
        • Universitatsklinikum Bonn
        • Kontakt:
        • Huvudutredare:
          • Ruehl Heiko
      • Cologne, Tyskland, 50937
        • Har inte rekryterat ännu
        • Universitaetsklinikum Koeln
        • Kontakt:
        • Huvudutredare:
          • Kuehne Lucas
      • Jena, Tyskland, 7743
      • Leipzig, Tyskland, 4103
      • München, Tyskland
      • München, Tyskland, 81675
        • Har inte rekryterat ännu
        • Klinikum Rechts der Isar der Technischen Universitaet Muenchen
        • Huvudutredare:
          • Braunisch Matthias
        • Kontakt:
  • Österrike
      • Vienna, Österrike, 1090

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Barn
  • Vuxen
  • Äldre vuxen

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Testmetod

Icke-sannolikhetsprov

Studera befolkning

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.

Beskrivning

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.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Observationsmodeller: COHORT
  • Tidsperspektiv: RETROSPECTIVE

Kohorter och interventioner

Grupp / Kohort
Intervention / Behandling
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.
Övrig: No Intervention

This is a non-interventional study.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Number of Participants With Hypersensitivity Reactions Following the Index Adzynma Infusions
Tidsram: 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
Tidsram: 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

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Number of Participants With Long Term Safety Risk of Hypersensitivity Reactions Following the Index Adzynma Infusion
Tidsram: 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
Tidsram: 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)
Tidsram: 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
Tidsram: At birth

Gestational age at the time of infant birth will be reported.
At birth
Number of Participants With Spontaneous Abortion
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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)
Tidsram: 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
Tidsram: 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
Tidsram: 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
Tidsram: 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

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

Takeda

Utredare

  • Studierektor: Study Director, Takeda

Publikationer och användbara länkar

Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.

Användbara länkar

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

26 maj 2026

Primärt slutförande (Beräknad)

1 april 2030

Avslutad studie (Beräknad)

1 april 2030

Studieregistreringsdatum

Först inskickad

13 januari 2026

Först inskickad som uppfyllde QC-kriterierna

13 januari 2026

Första postat (Faktisk)

20 januari 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

2 oktober 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

1 oktober 2026

Senast verifierad

1 oktober 2026

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • TAK-755-4007
  • EUPAS1000000870 (Annan identifierare: EU PAS)

Plan för individuella deltagardata (IPD)

Planerar du att dela individuella deltagardata (IPD)?

JA

IPD-planbeskrivning

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.

Kriterier för IPD Sharing Access

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.

IPD-delning som stöder informationstyp

  • STUDY_PROTOCOL
  • SAV
  • ICF
  • CSR

Läkemedels- och apparatinformation, studiedokument

Studerar en amerikansk FDA-reglerad läkemedelsprodukt

Nej

Studerar en amerikansk FDA-reglerad produktprodukt

Nej

Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .

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