- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT04573023
Un estudio de fase III de JR-141 en pacientes con mucopolisacaridosis II
A Global Phase III multicenter, randomized, assessor-blinded, active-controlled designed to evaluate safety and efficacy of study drug for the treatment of the MPS II.
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Tipo de estudio
Inscripción (Actual)
Fase
- Fase 3
Contactos y Ubicaciones
Ubicaciones de estudio
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Giessen, Alemania
- Universitätsklinikum Giessen
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Hamburg, Alemania
- Universitätsklinikum Hamburg-Eppendorf
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Höchheim, Alemania
- SphinCS GmbH
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Mainz, Alemania
- Universitätsmedizin Mainz
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Buenos Aires, Argentina
- Hospital Universitario Austral
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Porto Alegre, Brasil
- Hospital de Clínicas de Porto Alegre
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São Paulo, Brasil
- Instituto de Genética e Erros Inatos do Metabolismo
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Bogotá, Colombia
- Fundación Cardio Infantil - Instituto de Cardiología
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Barcelona, España
- Hospital Sant Joan de Déu
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Arizona
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Phoenix, Arizona, Estados Unidos, 85016
- Phoenix Children's Hospital
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California
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Oakland, California, Estados Unidos, 94609
- UCSF Benioff Children's Hospital Oakland
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Illinois
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Chicago, Illinois, Estados Unidos, 60611
- Ann & Robert H. Lurie Children's Hospital of Chicago
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Minnesota
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Minneapolis, Minnesota, Estados Unidos, 55455
- University of Minnesota
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New York
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New York, New York, Estados Unidos, 10032
- Columbia University Irving Medical Center
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North Carolina
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Chapel Hill, North Carolina, Estados Unidos, 27514
- University of North Carolina at Chapel Hill Medical School Wing E
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Pennsylvania
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Philadelphia, Pennsylvania, Estados Unidos, 19104
- Children's Hospital of Philadelphia
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Lyon, Francia
- Hôpital Femme Mère Enfant
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Montpellier, Francia
- Chu De Montpellier Hopital Gui De Chauliac
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Paris, Francia
- Hôpital Armand Trousseau
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Afula, Israel, 1834111
- Clalit Health Services Ha'Emek Medical Center
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Ramat Gan, Israel, 6265601
- Sheba Medical Center
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Rome, Italia
- Osp. Pediatrico Bambino Gesù, IRCCS
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Krakow, Polonia
- Uniwersytecki Szpital Dziecięcy
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London, Reino Unido
- Great Ormond Street Hospital for Children NHS Trust - Metabolic Medicine
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Ankara, Turquía (Türkiye)
- Gazi University Medicine Faculty Hospital
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Izmir, Turquía (Türkiye)
- Ege University Children Hospital
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
- Niño
- Adulto
- Adulto Mayor
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria:
- A patient who voluntarily signs an Institutional Review Board or Independent Ethics Committee-approved written informed consent form. If the patient is aged under 18 years (aged under 16 years in the UK) at the time of enrollment or willingness to participate in the study cannot be confirmed due to MPS II-related intellectual disability, the patient's legally acceptable representative (e.g., his/her parents or guardians) may sign the informed consent on behalf of the patient. Written informed assent should be obtained from the patient, wherever possible.
- Patients with confirmed diagnosis of MPS II
- Naïve patients or patients who are receiving stable enzyme replacement therapy with idursulfase for more than 12 weeks before starting administration of JR-141 or idursulfase for this study.
- Patients or patients whose partners are of child-bearing potential agree to use a medically accepted, highly effective method of contraception being use of condoms from the time of informed consent.
<Cohort A>
- Patients aged 36-42 months old at the time of ICF signing: patients must have a standard score measured by the BSID-III of 85 or less at screening.
- Patients aged 43-71 months old at the time of ICF signing: patients must EITHER have (1) A DQ measured by BSID-III of 20 to 85 at screening OR (2) A composite standard score on NVI measured by KABC-II of 85 or less at screening (only who can perform KABC-II)
- Patients aged 30-35 months old at the time of randomization and who are judged as having the severe phenotype by the Expert Board.
<Cohort B>
- Patients 6 years of age or older at the time of ICF signing and whose IQ are 70 and higher.
- Enrollment of subjects in Cohort B is contingent on the availability in that country of a validated country-specific version of the test (either WISC-V, WAIS-IV, or T.O.V.A.).
- Attenuated patients with 1 SD deficiency in the omission errors or variability domains of the T.O.V.A..
- Patients or patients whose female partners are of child-bearing potential i.e., fertile, following menarche and until becoming post-menopausal unless permanently sterile, agree to use a medically accepted, highly effective method of contraception, from the time of informed consent. The method of contraception must be used during the study until 90 days for male subjects, and 30 days for female subjects after the final study intervention administration.
- For subjects with hearing impairment requiring hearing aid(s), every effort has been made to encourage compliance with the use of functioning hearing aid(s) before baseline neurocognitive assessments, and parent/legally acceptable representative or subject agrees to encourage wearing them during the study and on neurocognitive testing days.
Exclusion Criteria:
- A patient with a history of HSCT with successful engraftment.
- A patient who has received gene therapy treatment at any point.
- A patient who is judged by the principal investigator or sub-investigator as being unable to undergo lumbar puncture, including those who have difficulties in taking position for lumbar puncture due to joint contracture or those who are likely to experience breathing difficulties during the lumbar puncture process.
- A patient who is enrolled in another clinical study that involves clinical investigations or use of any investigational product (drug or device) within 4 months before obtaining informed consent.
- Unable to comply with the protocol as determined by the principal investigator or subinvestigator.
- Judged by the principal investigator or subinvestigator to be ineligible to participate in the study due to a history of serious drug allergy or sensitivity including anesthesia or hypersensitivity to any component of JR-141.
- A patient who has a known or suspected local or general infection or is at risk of abnormal bleeding due to medical conditions or therapies.
- A patient who has documented mutation of other genes, including loci adjacent to the IDS gene that are known to be associated with developmental delay, seizures, or other significant CNS disorders.
- A patient who has documented loss of activity of sulfatases other than IDS.
- A patient who has had a ventriculoperitoneal shunt placed or any other brain surgery, or has a clinically significant ventriculoperitoneal shunt malfunction within 30 days of screening.
- A patient who is full time employee of the sponsor or research site personnel directly affiliated with this study or their immediate family members.
- A patient who otherwise is judged by the principle investigator or sub-investigator to be ineligible to participate in the study.
- The subject has a positive pregnancy test or is breastfeeding at screening or randomization.
[Only in France]
- Persons deprived of their liberty by a judicial or administrative decision, according to article L.1121-6 the Public Health Code (Code de la santé publique), adults who are the subject of a measure of legal protection or unable to express their consent according to article L. 1121-8 of the Code de la santé publique)
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Único
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
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Experimental: JR-141 2,0 mg/kg/semana
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IV infusion, 2.0 mg/kg/week |
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Otro: Brazo de salvamento
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The subjects who have achieved the pre-specified criteria* are able to change the drug. *If a subject in Idursulfase group shows decline in their neurocognitive outcome, idursulfase can be switched to JR-141. If a subject in JR-141 group shows decline in their peripheral outcome, JR-141 will be switched to idursulfase. |
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Otro: administered as the standard of care: idursulfase (ELAPRASE®)
standard of care-controlled study |
IV infusion |
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Periodo de tiempo |
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Cambio en los niveles de heparán sulfato en líquido cefalorraquídeo desde el inicio (cohorte A)
Periodo de tiempo: Línea de base a la semana 53
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Línea de base a la semana 53
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Cambio en las puntuaciones brutas de las pruebas cognitivas medidas desde el inicio (BSID-III) (Cohorte A)
Periodo de tiempo: Línea de base a la semana 105
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Línea de base a la semana 105
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Medidas de resultado secundarias
Medida de resultado |
Periodo de tiempo |
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Para regiones distintas a los Estados Unidos: cambio en la edad puntajes equivalentes de pruebas cognitivas medidas desde el inicio (BSID-III o KABC-II) (Cohorte a)
Periodo de tiempo: Línea de base a la semana 105
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Línea de base a la semana 105
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Para regiones distintas a nosotros: cambio en la edad puntajes equivalentes de comportamiento adaptativo medido desde el inicio (VABS-II) (Cohorte a)
Periodo de tiempo: Línea de base a la semana 105
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Línea de base a la semana 105
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Para los EE. UU.: Cambio en las puntuaciones sin procesar de comportamiento adaptativo medido desde la línea de base (Vabs-II) (Cohorte a)
Periodo de tiempo: Línea de base a la semana 105
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Línea de base a la semana 105
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Para todas las regiones: cambio relativo en el volumen del hígado en relación con el peso corporal desde el inicio (Cohort A y Cohort B)
Periodo de tiempo: Línea de base a la semana 53
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Línea de base a la semana 53
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Para todas las regiones: cambio relativo en el volumen del bazo en relación con el peso corporal desde la línea de base (Cohorte A y Cohorte B)
Periodo de tiempo: Línea de base a la semana 53
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Línea de base a la semana 53
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Colaboradores e Investigadores
Patrocinador
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Finalización primaria (Estimado)
Finalización del estudio (Estimado)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
- Manifestaciones neurológicas
- Enfermedades del Sistema Nervioso
- Metabolismo, errores congénitos
- Enfermedades Genéticas Congénitas
- Enfermedades metabólicas
- Enfermedades del tejido conectivo
- Manifestaciones neuroconductuales
- Trastornos Heredodegenerativos, Sistema Nervioso
- Discapacidad intelectual
- Enfermedades Genéticas, Ligadas al X
- Metabolismo de carbohidratos, errores congénitos
- Enfermedades de almacenamiento lisosomal
- Mucinosis
- Mucopolisacaridosis
- Enfermedades y anomalías congénitas, hereditarias y neonatales
- Enfermedades Nutricionales y Metabólicas
- Enfermedades de la piel y del tejido conectivo
- Discapacidad intelectual ligada al cromosoma X
- Mucopolisacaridosis II
- idursulfase
Otros números de identificación del estudio
- JR-141-GS31
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .