New drug combo hopes to tame rare muscle disease in kids
NCT ID NCT04808505
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
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 36 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2023
- Expected to finish
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Jul 2027
An estimate. End dates often move.
- Lead sponsor
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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
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Up to 17 years
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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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Genom att skicka in godkänner du våra Användarvillkor
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.
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The study's own enquiry address
This study publishes an address for enquiries. See it below .
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The places running it
13 sites in 5 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
Show contact details
Enter your email to view the contact information for this study.
Genom att skicka in godkänner du våra Användarvillkor
Study contacts
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Contact
Email: •••••@•••••
Locations
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AOU Federico II
RECRUITINGNaples, 80131, Italy
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Cincinnati Children's Hospital Medical Center
RECRUITINGCincinnati, Ohio, 54229, United States
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Duke University Early Phase Research Unit
RECRUITINGDurham, North Carolina, 27710, United States
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Erasmus MC, Sophia Kinderziekenhuis
RECRUITINGRotterdam, 3015 GD, Netherlands
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Great Ormond Street Hospital for Children NHS Foundation Trust
RECRUITINGLondon, WC1N3JH, United Kingdom
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National Taiwan University Hospital
WITHDRAWNTaipei, 100, Taiwan
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SphinCS GmbH
RECRUITINGHöchheim, 65239, Germany
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The Emory Clinic
RECRUITINGAtlanta, Georgia, 30322, United States
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UPMC Hospital of Pittsburgh
RECRUITINGPittsburgh, Pennsylvania, 15224, United States
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University of Florida Clinical Research Center
RECRUITINGGainesville, Florida, 32610, United States
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University of Utah, Clinical and Translational Sciences Institute
RECRUITINGSalt Lake City, Utah, 84108, United States
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Universitätsklinikum Gießen und Marburg GmbH, Zentrum fur Kinderheilkunde und Jugendmedizin Abteilung fur Kinderneurologic, Sozialpadiatric und Epileptologie
RECRUITINGGiessen, 35392, Germany
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Universitätsklinikum Heidelberg - Pädiatrisches Klinisch-Pharmakologisches Studienzentrum (paedKliPS)
RECRUITINGHeidelberg, 69120, Germany
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Universitätsklinikum Münster Klinik für Kinder- und Jugendmedizin Albert-Schweitzer-Campus 1
RECRUITINGMünster, 48149, Germany