Phase I/II Study of JR-441 in Patients With Mucopolysaccharidosis Type IIIA

NCT ID: NCT06095388

Last Updated: 2025-08-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE1/PHASE2

Total Enrollment

15 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-10-04

Study Completion Date

2029-10-31

Brief Summary

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A Phase I/ II, open-label, randomized, 2-arm study, designed to evaluate the safety and explore efficacy of the study drug in development for the treatment of MPS IIIA patients.

Detailed Description

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Conditions

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Mucopolysaccharidosis III-A

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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JR-441 low dose

Group Type EXPERIMENTAL

JR-441

Intervention Type DRUG

IV infusion

JR-441 medium dose

Group Type EXPERIMENTAL

JR-441

Intervention Type DRUG

IV infusion

JR-441 high dose

Group Type EXPERIMENTAL

JR-441

Intervention Type DRUG

IV infusion

Interventions

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JR-441

IV infusion

Intervention Type DRUG

JR-441

IV infusion

Intervention Type DRUG

JR-441

IV infusion

Intervention Type DRUG

Other Intervention Names

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posnafusp alfa posnafusp alfa posnafusp alfa

Eligibility Criteria

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Inclusion Criteria

* Chronological age of ≥1 year and ≤18 years.
* Confirmed diagnosis of MPS IIIA.
* Body weight ≥ 10 kg.

Exclusion Criteria

* Prior experience to gene therapy or HSCT with successful engraftment.
* Past use of another investigational drug or product in last 4 months or 5 half-lives (whichever is longer) before signing ICF.
* Current participation in a clinical trial or past participation (within 30 days of enrolment into this study) in a study involving invasive procedures.
* Past use of Genistein or Kineret (anakinra) within 4 months before signing ICF.
* Serious drug allergy or hypersensitivity.
* Contraindication for lumbar puncture or MRI.
* History of bleeding disorder or current use of medications that, in the opinion of the investigator, place them at risk of bleeding following lumbar puncture.

The above information is not intended to contain all considerations relevant to a patient's potential participation in this clinical trial.
Minimum Eligible Age

1 Year

Maximum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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JCR Pharmaceuticals Co., Ltd.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Universitätsklinikum Hamburg-Eppendorf

Hamburg, , Germany

Site Status

Countries

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Germany

Other Identifiers

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JR-441-101

Identifier Type: -

Identifier Source: org_study_id

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