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- Klinische proef NCT06150820
Een onderzoek naar antilichaamniveaus en biomarkers in het bloed bij mensen met de late ziekte van Pompe
Een onderzoek ter evaluatie van de seroprevalentie van antilichamen tegen AAV8 en beoordeling van biomarkers bij patiënten met de late ziekte van Pompe
Pompe disease is a genetic condition which causes muscle weakness over time. People with Pompe disease have a faulty gene that makes an enzyme called acid alpha-glucosidase (or GAA). This enzyme breaks down a type of sugar called glycogen. Without this enzyme, there is a build-up of glycogen in the cells of the body. This causes muscle weakness and other symptoms. Pompe disease can happen at any age, but in late-onset Pompe disease, symptoms generally start from 12 months old onwards.
The standard treatment for people with Pompe disease is to receive regular infusions of the GAA enzyme. This is known as enzyme replacement therapy. However, people can build up antibodies against the GAA enzyme over time.
Gene therapy is used to treat conditions caused by a faulty gene. It works by replacing the faulty gene with a working gene inside the cells of the body. The working gene is delivered into the cells using certain viruses as carriers (vectors). Viruses are often used as carriers as they can easily get inside cells. The genetic material of the original virus is replaced with the working gene, so only the working gene gets inside the cells. A common virus used as a carrier in gene therapy is the adeno-associated virus (or AAV). This is like an adenovirus, which causes the common cold.
The original type of AAV does not cause any harm to humans. However, people that have previously been infected with the original type of AAV may have built up antibodies against AAV. These antibodies may stop the AAV carrier with the working gene getting inside the cells.
Researchers want to learn more about antibody levels against AAV and the GAA enzyme in people with late-onset Pompe disease. They also want to learn about other substances in the blood that provide more information about late-onset Pompe disease. These are known as biomarkers.
In this study, older teenagers and adults with late-onset Pompe disease will take part. They will not have had gene therapy using AAV. There will be 2 groups - those who have never had enzyme replacement therapy, and those who have had enzyme replacement therapy for 6 months or more. No study treatment will be given during the study, but blood and urine samples will be taken for testing.
The main aims of the study are to check antibody levels against AAV8 (a type of AAV) in people with late-onset Pompe disease who had not received any treatment using AAV, to check antibody levels against the GAA enzyme in people previously treated with GAA as part of enzyme replacement therapy, to check levels of biomarkers for Pompe disease, and to check for medical problems.
In the study, people will visit the study clinic several times. Some visits may be in the person's home. The first visit is to check if they can take part. Those who can take part will have a medical examination, and have their vital signs checked. Vital signs include blood pressure, heart rate, breathing rate and temperature. Blood samples will be taken to check antibody levels against the GAA enzyme and against AAV8. Blood and urine samples will also be taken to check for biomarkers for Pompe disease. Blood and urine samples will be taken about every 4 months for up to 2 years.
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
No investigational drug will be administered to participants in this study. Blood and urine will be collected as part of the study. The duration of the study is approximately 2 years, participants may withdraw at any time.
Studietype
Inschrijving (Werkelijk)
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
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Adelaide, Australië
- AU61003
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Herston, Australië
- AU61001
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Flamengo, Brazilië
- BR55003
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Porto Alegre, Brazilië
- BR55002
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São Paulo, Brazilië
- BR55001
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Edmonton, Canada
- CN15003
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Montreal, Canada
- CA15001
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Bonn, Duitsland
- DT49005
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Essen, Duitsland
- DT49004
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Höchheim, Duitsland
- DT49003
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Münster, Duitsland
- DT49006
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Angers, Frankrijk
- FR33006
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Garches, Frankrijk
- FR33009
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Lille, Frankrijk
- FR33005
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Limoges, Frankrijk
- FR33007
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Marseille, Frankrijk
- FR33002
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Nantes, Frankrijk
- FR33003
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Nice, Frankrijk
- FR33004
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Strasbourg, Frankrijk
- FR33001
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Florence, Italië
- IT39002
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Gussago, Italië
- IT39005
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Messina, Italië
- IT39012
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Milan, Italië
- IT39009
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Milan, Italië
- IT39011
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Pavia, Italië
- IT39008
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Pisa, Italië
- IT39006
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Roma, Italië
- IT39004
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Udine, Italië
- IT39003
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Kodaira-Shi, Japan
- National Center of Neurology and Psychiatry
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Shinjuku-Ku, Japan
- Tokyo Women's Medical University Hospital
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Albacete, Spanje
- ES34003
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Barcelona, Spanje
- ES34004
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Donostia / San Sebastian, Spanje
- ES34009
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L'Hospitalet de Llobregat, Spanje
- ES34007
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Madrid, Spanje
- ES34001
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Madrid, Spanje
- ES34005
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Valencia, Spanje
- ES34002
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Taipei, Taiwan
- TW88601
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Taipei, Taiwan
- TW88602
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Taoyuan City, Taiwan
- TW88603
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Cambridge, Verenigd Koninkrijk
- UK44003
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Newcastle upon Tyne, Verenigd Koninkrijk
- UK44001
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Salford, Verenigd Koninkrijk
- UK44004
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Georgia
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Atlanta, Georgia, Verenigde Staten, 30322
- Emory Clinic
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Kansas
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Kansas City, Kansas, Verenigde Staten, 66160
- University of Kansas Medical Center
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Michigan
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Ann Arbor, Michigan, Verenigde Staten, 48109
- University of Michigan
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Minnesota
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Minneapolis, Minnesota, Verenigde Staten, 55404
- Children's Hospitals and Clinics of Minnesota
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New Jersey
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Hackensack, New Jersey, Verenigde Staten, 07601
- Hackensack University Medical Center
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Ohio
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Cincinnati, Ohio, Verenigde Staten, 45221
- University of Cincinnati
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Pennsylvania
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Philadelphia, Pennsylvania, Verenigde Staten, 19104
- University of Pennsylvania
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Pittsburgh, Pennsylvania, Verenigde Staten, 15213
- University of Pittsburgh Medical Center
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Utah
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Salt Lake City, Utah, Verenigde Staten, 84132
- University of UTAH - PPDS
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Virginia
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Fairfax, Virginia, Verenigde Staten, 22030
- Lysosomal and Rare Diseases Research and Treatment Center, Inc.
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Participant has a documented clinical diagnosis of LOPD.
- Participant is enzyme replacement therapy ERT-naïve (ERT-N) or if the participant is currently taking an approved ERT treatment or is participating in an ERT-interventional study, the ERT must have been received for at least 6 months or more (ERT-experienced [ERT-E]).
- Participant is willing and able to comply with study visits and procedures.
- Participant agrees to not start participating in any other clinical study involving an investigational study treatment, including ERT, while participating in this study.
Exclusion Criteria:
- Participant previously received an AAV-related product (any serotype).
- Participant is currently participating in a Pompe-related interventional study (other than ERT-interventional studies) or has received gene or cell therapy.
- Participant requires any invasive or noninvasive ventilation support while awake and upright (non-invasive support while sleeping with either continuous positive airway pressure (CPAP) or bilevel positive airway pressure (BiPAP) is acceptable for eligibility).
- Participant is unable to ambulate (assistive devices [e.g., cane or walker] are acceptable for eligibility).
- Participants who have received any ERT for less than 6 months as of the Baseline visit are not eligible.
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Ander
- Toewijzing: NVT
- Interventioneel model: Opdracht voor een enkele groep
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
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Ander: Participants with Late-Onset Pompe Disease
Adolescent or adult participants with LOPD. |
No investigational drug will be administered to participants in this study. |
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Occurrence of total antibodies to AAV8
Tijdsspanne: Up to 2 years
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Antibodies to AAV8 will be recorded from serum blood samples collected. |
Up to 2 years
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Occurrence of neutralizing antibodies to AAV8
Tijdsspanne: Up to 2 years
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Antibodies to AAV8 will be recorded from serum blood samples collected. |
Up to 2 years
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Seroconversion of antibodies to AAV8 over time
Tijdsspanne: Up to 2 years
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Seroconversion of antibodies to AAV8 will be recorded from serum blood samples collected. |
Up to 2 years
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Creatine kinase [CK] levels
Tijdsspanne: Up to 2 years
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CK levels will be recorded from blood plasma samples collected. |
Up to 2 years
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Urine glucose tetrasaccharide [Glc4]/hexose tetrasaccharide [Hex4] over time
Tijdsspanne: Up to 2 years
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Glc4/Hex4 will be recorded from urine samples collected. |
Up to 2 years
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Occurrence of anti-GAA antibodies in participants on ERT
Tijdsspanne: Up to 2 years
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Anti-GAA antibodies will be recorded from serum blood samples collected. |
Up to 2 years
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Medewerkers en onderzoekers
Sponsor
Onderzoekers
- Studie directeur: Medical Director, Astellas Gene Therapies
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Geschat)
Studie voltooiing (Geschat)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
- Hersenziekten
- Ziekten van het centrale zenuwstelsel
- Ziekten van het zenuwstelsel
- Metabolisme, aangeboren fouten
- Genetische ziekten, aangeboren
- Metabole ziekten
- Koolhydraatmetabolisme, aangeboren fouten
- Lysosomale stapelingsziekten
- Hersenziekten, metabolisch, aangeboren
- Hersenziekten, Metabool
- Lysosomale stapelingsziekten, zenuwstelsel
- Glycogeenstapelingsziekte
- Aangeboren, erfelijke en neonatale ziekten en afwijkingen
- Voedings- en stofwisselingsziekten
- Glycogeenstapelingsziekte Type II
Andere studie-ID-nummers
- AT845-02
Plan Individuele Deelnemersgegevens (IPD)
Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?
Beschrijving IPD-plan
Access to anonymized individual participant level data will not be provided for this trial. Further details on Astellas' data sharing policy can be found at https://www.clinicaltrials.astellas.com/transparency/.
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .