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En undersøgelse af børn og voksne med medfødt trombocytopenisk purpura (cTTP) behandlet med Adzynma

5. november 2026 opdateret af: Takeda

Et post-autorisationssikkerhedsstudie (PASS) til yderligere evaluering af reelle sikkerhedsforhold hos patienter med medfødt trombocytopenisk purpura (cTTP) behandlet 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.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Undersøgelsestype

Observationel

Tilmelding (Anslået)

50

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Studiesteder

      • Bonn, Tyskland, 53127
        • Rekruttering
        • Universitatsklinikum Bonn
        • Kontakt:
        • Ledende efterforsker:
          • Ruehl Heiko
      • Cologne, Tyskland, 50937
        • Rekruttering
        • Universitaetsklinikum Koeln
        • Kontakt:
        • Ledende efterforsker:
          • Kuehne Lucas
      • Jena, Tyskland, 7743
      • Leipzig, Tyskland, 4103
      • München, Tyskland
      • München, Tyskland, 81675
      • Vienna, Østrig, 1090

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Barn
  • Voksen
  • Ældre voksen

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

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.

Beskrivelse

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

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Observationsmodeller: COHORT
  • Tidsperspektiver: RETROSPECTIVE

Kohorter og interventioner

Gruppe / kohorte
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.

This is a non-interventional study.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Number of Participants With Hypersensitivity Reactions Following the Index Adzynma Infusions
Tidsramme: 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
Tidsramme: 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

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Number of Participants With Long Term Safety Risk of Hypersensitivity Reactions Following the Index Adzynma Infusion
Tidsramme: 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
Tidsramme: 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)
Tidsramme: 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
Tidsramme: At birth

Gestational age at the time of infant birth will be reported.

At birth
Number of Participants With Spontaneous Abortion
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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)
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Efterforskere

  • Studieleder: Study Director, Takeda

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

26. maj 2026

Primær færdiggørelse (Anslået)

1. april 2030

Studieafslutning (Anslået)

1. april 2030

Datoer for studieregistrering

Først indsendt

13. januar 2026

Først indsendt, der opfyldte QC-kriterier

13. januar 2026

Først opslået (Faktiske)

20. januar 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

6. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

5. november 2026

Sidst verificeret

1. november 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Andre undersøgelses-id-numre

  • TAK-755-4007
  • EUPAS1000000870 (Anden identifikator: EU PAS)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

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.

IPD-delingsadgangskriterier

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-deling Understøttende informationstype

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • CSR

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .