A Study to Evaluate the Safety, Efficacy, PK, PD and Immunogenicity of Cipaglucosidase Alfa/Miglustat in IOPD Subjects Aged 0 to <18

NCT ID: NCT04808505

Last Updated: 2026-01-22

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

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

36 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-07-18

Study Completion Date

2027-07-31

Brief Summary

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This is a Phase 3, open-label, multicenter study to evaluate the safety, efficacy, PK, PD, and immunogenicity of cipaglucosidase alfa/miglustat treatment in ERT-experienced and ERT-naïve pediatric subjects with IOPD.

Detailed Description

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Conditions

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Glycogen Storage Disease Type II Infantile Onset

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Cohort 1: Cipaglucosidase Alfa/Miglustat in ERT-experienced pediatric IOPD subjects

Pediatric IOPD subjects 6 months to \<18 years experiencing clinical decline

Group Type EXPERIMENTAL

Cipaglucosidase alfa

Intervention Type BIOLOGICAL

Sterile lyophilized powder intravenous (IV) infusion

Miglustat

Intervention Type DRUG

65 mg oral capsules

Cohort 2: Cipaglucosidase Alfa/Miglustat in ERT-naïve pediatric IOPD subjects

Pediatric IOPD subjects \<6 months

Group Type EXPERIMENTAL

Cipaglucosidase alfa

Intervention Type BIOLOGICAL

Sterile lyophilized powder intravenous (IV) infusion

Miglustat

Intervention Type DRUG

65 mg oral capsules

Interventions

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Cipaglucosidase alfa

Sterile lyophilized powder intravenous (IV) infusion

Intervention Type BIOLOGICAL

Miglustat

65 mg oral capsules

Intervention Type DRUG

Other Intervention Names

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ATB200 AT2221

Eligibility Criteria

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Inclusion Criteria

Cohort 1:

1. Male or female subjects who are aged 6 months to \< 18 years on Day 1
2. Subject must have documentation of IOPD genotype
3. Subject must have had hypertrophic cardiomyopathy at the time of diagnosis
4. Subject must have received ERT for at least 6 months immediately before enrollment. For subjects whose ERT dosage has been modified, the subject must have been on the modified dosage and regimen for at least 3 months before enrollment
5. Subjects aged ≥ 12 to \< 18 years must perform one valid 6-minute walk test (6MWT) (≥ 75 meters) at screening; Subjects aged ≥ 5 to \< 12 years must perform one valid 6MWT (≥ 40 meters) at screening; Subjects aged 18 months to \< 5 years must be ambulatory and assessed to be likely to be able to perform 6MWT (≥ 40 meters) when they turn 5 years old
6. Subjects must have experienced a clinical decline on their current rhGAA dose and frequency

Cohort 2:

1. Male or female subjects who are aged 0 to \<6 months at Day 1
2. Subject must have documentation of IOPD genotype
3. Subject must have had hypertrophic cardiomyopathy at the time of diagnosis
4. Subject is ERT-naïve

Long-term Extension (Cohort 1 or Cohort 2):

1\. Subject must have, in the opinion of the investigator, benefited from therapy with cipaglucosidase alfa/miglustat during the 104-week primary treatment period with no significant safety concerns.

Exclusion Criteria

Cohort 1 and Cohort 2, unless specified

1. Subject requires invasive ventilation (eg, tracheostomy)
2. Subject is CRIM negative and has not received prophylactic immunomodulation (Cohort 1); Subject is CRIM negative and will not be receiving prophylactic immunomodulation (Cohort 2)
3. Subject has a history of life-threatening IARs/hypersensitivity (eg, anaphylaxis and severe cutaneous reactions) to ERT (eg, alglucosidase alfa, cipaglucosidase alfa, miglustat) or other iminosugars, or to any of the excipients, where rechallenge was unsuccessful
4. Subject has prior history of illness or condition known to affect motor function
5. Female subject is pregnant (or intends to get pregnant) or breastfeeding at screening (Cohort 1)
Maximum Eligible Age

17 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Amicus Therapeutics

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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University of Florida Clinical Research Center

Gainesville, Florida, United States

Site Status RECRUITING

The Emory Clinic

Atlanta, Georgia, United States

Site Status RECRUITING

Duke University Early Phase Research Unit

Durham, North Carolina, United States

Site Status RECRUITING

Cincinnati Children's Hospital Medical Center

Cincinnati, Ohio, United States

Site Status RECRUITING

UPMC Hospital of Pittsburgh

Pittsburgh, Pennsylvania, United States

Site Status RECRUITING

University of Utah, Clinical and Translational Sciences Institute

Salt Lake City, Utah, United States

Site Status RECRUITING

Universitätsklinikum Gießen und Marburg GmbH, Zentrum fur Kinderheilkunde und Jugendmedizin Abteilung fur Kinderneurologic, Sozialpadiatric und Epileptologie

Giessen, , Germany

Site Status RECRUITING

Universitätsklinikum Heidelberg - Pädiatrisches Klinisch-Pharmakologisches Studienzentrum (paedKliPS)

Heidelberg, , Germany

Site Status RECRUITING

SphinCS GmbH

Höchheim, , Germany

Site Status RECRUITING

Universitätsklinikum Münster Klinik für Kinder- und Jugendmedizin Albert-Schweitzer-Campus 1

Münster, , Germany

Site Status RECRUITING

AOU Federico II

Naples, , Italy

Site Status RECRUITING

Erasmus MC, Sophia Kinderziekenhuis

Rotterdam, , Netherlands

Site Status RECRUITING

National Taiwan University Hospital

Taipei, , Taiwan

Site Status WITHDRAWN

Great Ormond Street Hospital for Children NHS Foundation Trust

London, , United Kingdom

Site Status RECRUITING

Countries

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United States Germany Italy Netherlands Taiwan United Kingdom

Central Contacts

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For Site

Role: CONTACT

609-662-2000

For Patient

Role: CONTACT

609-662-2000

Other Identifiers

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ATB200-08

Identifier Type: -

Identifier Source: org_study_id

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