- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT07194850
- Original retssag
En undersøgelse af efgartigimod IV hos deltagere fra 12 år til mindre end 18 år med kronisk immuntrombocytopeni (ITP) (Advance Jr)
Et multicenter, randomiseret, dobbeltblindet, parallelarm, placebokontrolleret, farmakokinetisk og farmakodynamisk undersøgelse efterfulgt af en åben-label-arm for at evaluere Efgartigimod IV i pædiatriske deltagere fra 12 år til mindre end 18 år med kronisk ITP
The main purpose of this study is to confirm the correct dose of efgartigimod IV for treating patients aged 12 to younger than 18 years with chronic immune thrombocytopenia (ITP).
The study consists of a double-blinded treatment period (DBTP) in which the participants will be randomized in a 2:1 ratio to receive either efgartigimod IV or placebo IV. At the end of the treatment period (up to 24 weeks), all participants will receive efgartigimod IV during the first year open-label treatment period (OLTP1). At the end of the first OLTP1, participants may begin a second year (OLTP2). After the OLTP2, the participants will enter a follow-up period (approximately 8 weeks) while off study drug. The participants will be in the study for up to 138 weeks.
More information can be found here: https://clinicaltrials.argenx.com/advancejunior
Studieoversigt
Status
Betingelser
Intervention / Behandling
Undersøgelsestype
Tilmelding (Anslået)
Fase
- Fase 2
- Fase 3
Kontakter og lokationer
Studiekontakt
- Navn: Sabine Coppieters, MD
- Telefonnummer: 857-350-4834
- E-mail: clinicaltrials@argenx.com
Studiesteder
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Cardiff, Det Forenede Kongerige, CF14 4XW
- Rekruttering
- Cardiff and Vale NHS Trust - University Hospital of Wales (UHW)
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Kontakt:
- Philip Connor, MD
- Telefonnummer: +442020744829
- E-mail: philip.connor@wales.nhs.uk
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Glasgow, Det Forenede Kongerige, G51 4TF
- Rekruttering
- The Royal Hospital for Children - Glasgow Health Board
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Kontakt:
- Sarah Clarke, MD
- E-mail: sarah.clarke2@nhs.scot
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Manchester, Det Forenede Kongerige, M139WL
- Rekruttering
- Royal Manchester Children's Hospital - Manchester University NHS Foundation Trust
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Kontakt:
- John Grainger, MD
- Telefonnummer: +441617018416
- E-mail: john.grainger@mft.nhs.uk
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Bordeaux, Frankrig, 33000
- Rekruttering
- Centre Hospitalier Universitaire de Bordeaux Groupe Hospitalier Pellegrin Hopital des Enfants
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Kontakt:
- Nathalie Aladjidi, MD
- Telefonnummer: +33557820261
- E-mail: nathalie.aladjidi@chu-bordeaux.fr
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La Tronche, Frankrig, 38700
- Rekruttering
- Centre Hospitalier Universitaire de Grenoble - Hopital Couple - Enfant
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Kontakt:
- Cecile Perret
- Telefonnummer: 04 76 76 72 50
- E-mail: cperret1@chu-grenoble.fr
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Vandœuvre-lès-Nancy, Frankrig, 54500
- Rekruttering
- CHU de Nancy Hopitaux de Brabois
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Kontakt:
- Helene Deutsch
- Telefonnummer: 857-350-4834
- E-mail: h.deutsch@chru-nancy.fr
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Genoa, Italien, 16147
- Rekruttering
- Gaslini Children's Hospital
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Kontakt:
- Maurizio Miano, MD
- Telefonnummer: +3901056363683
- E-mail: mauriziomiano@gaslini.org
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Monza, Italien, 20900
- Rekruttering
- Fondazione IRCCS San Gerardo dei Tintori
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Kontakt:
- Marco Spinelli, MD
- Telefonnummer: +390392336816
- E-mail: marco.spinelli@irccs-sangerardo.it
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Roma, Italien, 165
- Rekruttering
- Bambino Gesu Children's Hospital
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Kontakt:
- Giuseppe Palumbo, MD
- Telefonnummer: +390668594182
- E-mail: Giuseppe.palumbo@opbg.net
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Torino, Italien, 10126
- Rekruttering
- A.O.U. Citta della Salute e della Scienza di Torino - Ospedale Infantile Regina Margherita
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Kontakt:
- Franca Fagioli, MD
- Telefonnummer: +390113135230
- E-mail: Franca.fagioli@unito.it
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Hokkaido
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Sapporo, Hokkaido, Japan, 060-8648
- Rekruttering
- Hokkaido University Hospital
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Kontakt:
- Shinsuke Hirabayashi
- E-mail: hirashin@huhp.hokudai.ac.jp
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Hyōgo
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Kobe, Hyōgo, Japan, 650-0047
- Rekruttering
- Hyogo Prefectural Kobe Children's Hospital
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Kontakt:
- Daiichiro Hasegawa
- Telefonnummer: +81 787326961
- E-mail: hasegawa_kch@hp.pref.hyogo.jp
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Osaka
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Osaka, Osaka, Japan, 534-0021
- Rekruttering
- Local Incorporated Administrative Agency Osaka City Hospital Organization Osaka City General Hospital
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Kontakt:
- Hiroyuki Fujisaki, MD
- Telefonnummer: +1 857-350-4834
- E-mail: h-fujisaki@med.osakacity-hp.or.jp
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Vilnius, Litauen, 8406
- Rekruttering
- Vilnius University Hospital Santaros Klinikos, Children's Hospital
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Kontakt:
- Sonata Trakymiene, MD
- Telefonnummer: +37052720412
- E-mail: sonata.saulytetrakymiene@santa.lt
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Lodz, Polen, 92-213
- Rekruttering
- Samodzielny Publiczny Zaklad Opieki Zdrowotnej Uniwersytecki Szpital Kliniczny nr 4
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Kontakt:
- Wojciech Mlynarski, MD
- Telefonnummer: +48660732794
- E-mail: wojciech.mlynarski@umed.lodz.pl
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Lublin, Polen, 20-093
- Rekruttering
- Uniwersytecki Szpital Dzieciecy w Lublinie
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Kontakt:
- Katarzyna Drabko, MD
- Telefonnummer: +48606729876
- E-mail: katarzyna.drabko@umlub.pl
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Bucharest, Rumænien, 022328
- Rekruttering
- Institutul Clinic Fundeni
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Kontakt:
- Anca Colita, MD
- Telefonnummer: +40213172194
- E-mail: secretariat@icfundeni.ro
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Belgrade, Serbien, 11070
- Rekruttering
- Institute Of Mother And Child Healthcare Of Serbia Dr Vukan Cupic
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Kontakt:
- Dragana Aleksic, MD
- E-mail: aleksic.dragana9@gmail.com
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Kragujevac, Serbien, 34000
- Rekruttering
- University Clinical Centre of Kragujevac
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Kontakt:
- Zoran Igrutinovic, MD
- Telefonnummer: +381505177
- E-mail: igzor@fmn.kg.ac.rs
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Barcelona, Spanien, 08035
- Rekruttering
- Hospital Universitari Vall d'Hebron
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Kontakt:
- Thais Murciano Carrillo, MD
- Telefonnummer: 0034934893093
- E-mail: thais.murciano@vallhebron.cat
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Esplugues de Llobregat, Spanien, 08950
- Rekruttering
- Hospital Sant Joan de Deu Barcelona
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Kontakt:
- Ruben Berrueco Moreno, MD
- Telefonnummer: 0034936009733
- E-mail: ruben.berrueco@sjd.es
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Madrid, Spanien, 28041
- Rekruttering
- Hospital Universitario 12 de Octubre
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Kontakt:
- Maria del Carmen Garrido Colino, MD
- Telefonnummer: 0034913908000
- E-mail: cgarridoc@salud.madrid.org
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Madrid, Spanien, 28009
- Rekruttering
- Hospital Infantil Universitario Nino Jesus (HIUNJS)
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Kontakt:
- Julian Sevilla Navarro, MD
- Telefonnummer: 0034915036900
- E-mail: julian.sevilla@salud.madrid.org
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Madrid, Spanien, 28009
- Rekruttering
- Hospital Materno-Infantil Universitario Gregorio Maranon
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Kontakt:
- David Diaz Perez, MD
- Telefonnummer: 0037915290037
- E-mail: ddiazp@salud.madrid.org
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Berlin, Tyskland, 13353
- Rekruttering
- Charite - Universitaetsmedizin Berlin - Campus Virchow-Klinikum (CVK)
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Kontakt:
- Susanne Holzhauer, MD
- Telefonnummer: +4930450666215
- E-mail: susanne.holzhauer@charite.de
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Freiburg im Breisgau, Tyskland, 79106
- Rekruttering
- Universitaetsklinikum Freiburg Kinder - Kinder- und Jugendklinik
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Kontakt:
- Sarah Salou, MD
- Telefonnummer: +49 (0)761-270-43829
- E-mail: sarah.salou@uniklinik-freiburg.de
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Is aged 12 to less than 18 years when completing the informed consent process
- Has a documented duration of primary ITP of more than 12 months on the date the informed consent process is complete
- Has documented prior ITP treatment with at least 1 of the following treatments: corticosteroids, IVIg, anti-D immunoglobulin, thrombopoietin receptor agonist (TPO-RAs), or rituximab.
- Has documented prior response, defined as 1 platelet count of ≥50 × 10^9/L to at least 1 of the following ITP treatments: prednisone, other or nonspecified corticosteroids, IVIg, or anti-D immunoglobulin
- Has documented insufficient response to a prior ITP treatment with corticosteroids, IVIg, anti-D immunoglobulin, TPO-RAs, rituximab, or splenectomy
- Has documented mean platelet count of less than 30 x10^9/L
Exclusion Criteria:
- Secondary ITP according to the following definition by the International Working Group (IWG): all forms of immune-mediated thrombocytopenia except primary ITP
- Nonimmune thrombocytopenia
- ITP-associated critical or severe bleeding
- History of hereditary thrombocytopenia
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Firedobbelt
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
|---|---|
|
Eksperimentel: Efgartigimod IV
Participants receiving efgartigimod IV during the double-blinded treatment period and the open-label treatment period(s) |
Intravenous infusion of efgartigimod |
|
Placebo komparator: Placebo IV
Participants receiving placebo IV during the double-blinded treatment period and receiving efgartigimod IV during the open-label treatment period(s) |
Intravenous infusion of placebo Intravenous infusion of efgartigimod |
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
Efgartigimod serumkoncentrationer i DBTP
Tidsramme: Op til 24 uger
|
Op til 24 uger
|
|
Samlede IgG -niveauer i DBTP
Tidsramme: Op til 24 uger
|
Op til 24 uger
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Efgartigimod serumkoncentrationer over tid under DBTP
Tidsramme: Op til 24 uger
|
Op til 24 uger
|
|
|
Procentændring fra baseline i samlede IgG -niveauer i serum over tid under DBTP
Tidsramme: Op til 24 uger
|
Op til 24 uger
|
|
|
Ændringer fra baseline for blodpladetællinger over tid
Tidsramme: Op til 76 uger
|
Op til 76 uger
|
|
|
Incidence of AEs, SAEs and AEs leading to IMP discontinuation
Tidsramme: Up to 136 weeks
|
SAE: Serious adverse event; AE: adverse event |
Up to 136 weeks
|
|
Sustained platelet count response between study weeks 19 and 24 of the DBTP and in OLTP1 for participants receiving placebo in the DBTP
Tidsramme: Up to 48 weeks
|
Sustained platelet count defined as achieving platelet counts of ≥50 × 10^9/L for at least 4 of the 6 study visits |
Up to 48 weeks
|
|
Extent of disease control during the DBTP and during the first 24 weeks of OLTP1 for those participants receiving placebo in the DBTP
Tidsramme: Up to 48 weeks
|
Extend of disease defined as the number of cumulative weeks with a platelet count of ≥50 × 10^9/L |
Up to 48 weeks
|
|
Incidence of bleeding, assessed by the Modified Buchanan and Adix Bleeding Score for pediatric ITP
Tidsramme: Up to 76 weeks
|
The Modified Buchanan and Adix Bleeding Score for pediatric ITP is a semiquantitative assessment tool that measures bleeding signs and symptoms, comprising a score based on a scale of 0 to 5, each representing a different level of severity (0 = no risk; 5 = highest severity). |
Up to 76 weeks
|
|
Incidence of ADA and Nab against efgartigimod in serum
Tidsramme: Up to 76 weeks
|
ADA: anti-drug antibodies; Nab: neutralizing antibodies |
Up to 76 weeks
|
|
Change from baseline in EQ-5D-5L
Tidsramme: Up to 76 weeks
|
The European Quality of Life 5 Dimensions 5 Level (EQ-5D-5L) is a questionnaire comprised of 5 dimensions. Participants are asked to select the statement in each dimension which best describes their health on the day they complete the questionnaire. Responses in each dimension are coded as a 1-digit number ranging from 1 (no problems) to 5 (extreme problems). |
Up to 76 weeks
|
|
Change from baseline in KIT Child Self-Report and KIT Parent Impact Report
Tidsramme: Up to 76 weeks
|
The Kids' ITP Tools (KIT) comprises two disease- specific tools: a self-report form for children aged 12 and older, and a parent impact form. Respondents provide insights into their disease experience using a 1-week recall period. The instrument generates a total score, calculated by summing the items and converting them to a scale of 0 to 100, where higher scores reflect a better disease-specific quality of life (QoL). |
Up to 76 weeks
|
|
Change from baseline in peds FACIT-F
Tidsramme: Up to 76 weeks
|
In all participants, the pediatric Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-F) will use to assess health-related quality of life (HRQoL) before and after treatment. The FACIT-F questionnaire has a score range of 0 to 52, where 0 represents the worst possible fatigue and 52 indicates no fatigue. |
Up to 76 weeks
|
Samarbejdspartnere og efterforskere
Sponsor
Publikationer og nyttige links
Hjælpsomme links
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Primær færdiggørelse (Anslået)
Studieafslutning (Anslået)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
- Cytopeni
- Patologiske processer
- Autoimmune sygdomme
- Sygdomme i immunsystemet
- Blødning
- Hudmanifestationer
- Hæmatologiske sygdomme
- Blodkoagulationsforstyrrelser
- Hæmoragiske lidelser
- Blodpladeforstyrrelser
- Trombotiske mikroangiopatier
- Purpura, trombocytopenisk
- Purpura
- Trombocytopeni
- Patologiske tilstande, tegn og symptomer
- Tegn og symptomer
- Hemiske og lymfatiske sygdomme
- Purpura, trombocytopenisk, idiopatisk
Andre undersøgelses-id-numre
- ARGX-113-2409
- 2025-521055-23-00 (Ctis)
- 2025 (U.S. NIH-bevilling/kontrakt)
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
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