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New drug combo hopes to tame rare muscle disease in kids

NCT ID NCT04808505

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This Phase 3 trial is testing a combination of two drugs—cipaglucosidase alfa (an enzyme replacement therapy) and miglustat (an oral medication)—in children with infantile-onset Pompe disease, a rare genetic disorder that weakens muscles and the heart. The study includes both children who have already received enzyme therapy and those who have not. The main goal is to see if the treatment is safe and reduces infusion-related reactions.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
cipaglucosidase alfa (enzyme replacement therapy) combined with miglustat (oral drug)
What this could lead to
If successful, this could offer a more effective treatment option for children with infantile-onset Pompe disease, potentially improving muscle and heart function.
What could go wrong
This is an early-stage Phase 3 trial with only 36 participants, so results may not apply to all patients. The combination therapy may cause infusion reactions or other side effects.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Phase 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

About 36 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jul 2023

Expected to finish

Jul 2027

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

Up to 17 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

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)

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The study's own enquiry address

    This study publishes an address for enquiries. See it below .

  2. The places running it

    13 sites in 5 countries. The list below names each one and where it is.

  3. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  4. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

Locations

  • AOU Federico II

    RECRUITING

    Naples, 80131, Italy

  • Cincinnati Children's Hospital Medical Center

    RECRUITING

    Cincinnati, Ohio, 54229, United States

  • Duke University Early Phase Research Unit

    RECRUITING

    Durham, North Carolina, 27710, United States

  • Erasmus MC, Sophia Kinderziekenhuis

    RECRUITING

    Rotterdam, 3015 GD, Netherlands

  • Great Ormond Street Hospital for Children NHS Foundation Trust

    RECRUITING

    London, WC1N3JH, United Kingdom

  • National Taiwan University Hospital

    WITHDRAWN

    Taipei, 100, Taiwan

  • SphinCS GmbH

    RECRUITING

    Höchheim, 65239, Germany

  • The Emory Clinic

    RECRUITING

    Atlanta, Georgia, 30322, United States

  • UPMC Hospital of Pittsburgh

    RECRUITING

    Pittsburgh, Pennsylvania, 15224, United States

  • University of Florida Clinical Research Center

    RECRUITING

    Gainesville, Florida, 32610, United States

  • University of Utah, Clinical and Translational Sciences Institute

    RECRUITING

    Salt Lake City, Utah, 84108, United States

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

    RECRUITING

    Giessen, 35392, Germany

  • Universitätsklinikum Heidelberg - Pädiatrisches Klinisch-Pharmakologisches Studienzentrum (paedKliPS)

    RECRUITING

    Heidelberg, 69120, Germany

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

    RECRUITING

    Münster, 48149, Germany