Clinical trial Recruiting at 1 site Observational

Pompe disease long-term monitoring with avalglucosidase alfa

Official title: Long Term Follow-up for Patients With Pompe Disease Undergoing Compassionate Use and Transitioning to Medication Listed Under the National Health Insurance.

Run by National Taiwan University Hospital · NCT07834320 · Data updated 2026-11-12

This is an observational program to see how people with Pompe disease who started avalglucosidase alfa fare over time, including biomarkers, muscle and breathing function, and safety.

More Pompe Disease trials

Quick facts

Study typeObservational
SexAll
Enrollment40 (estimated)
SponsorNational Taiwan University Hospital
Academic / other
Locations1 site (Taipei, Taiwan)
StatusRecruiting
StartedOctober 1, 2023
Main results expectedOctober 1, 2036
Study endsOctober 1, 2036
Registry record updatedSeptember 22, 2026
Trial IDNCT07834320 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Pompe disease patients who have switched to avalglucosidase alfa and have confirmed GAA deficiency or two pathogenic GAA gene variants.

Probably not a fit

Patients who do not show changes in the measured endpoints or who discontinue treatment early may not observe benefits in this program.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational program collects clinical data from Pompe patients who switch to avalglucosidase alfa, tracking adverse events and several effectiveness measures. Primary focus is urinary Glc4/Hex4 as an indicator of treatment effect, with additional data on creatine kinase, motor function via the Quick Motor Function Test, and forced vital capacity for respiratory function. The evolution of these measures will be described and compared to each patient’s baseline before initiation or prior to a year before initiation, enabling descriptive analyses at the individual level. The study is conducted at National Taiwan University Hospital, led by NTUH with no listed collaborators.

Why it matters

Potential benefit: Participants may gain a better understanding of how avalglucosidase alfa affects biomarkers, motor and respiratory function, and safety over time.

How similar studies have gone: Prior studies of avalglucosidase alfa in Pompe disease have reported variable biomarker and functional changes; this program adds real-world long-term observations.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion criteria:

-Confirmed GAA enzyme deficiency (any tissue source) and/or confirmed 2 pathogenic GAA gene variants Pompe patient

Exclusion criteria:

* Having severe allergic reaction to avalglucosidase alfa.
* Patient/parent/legal guardian is not agreeing to provide signed informed consent, and the patient, if \<18 years of age

Where it's running

  • National Taiwan University Hospital
    Taipei, Taiwan, Taiwan
    Recruiting

Study contacts

  • Principal investigator: Yin-Hsiu Chien, MD, PhD — National Taiwan University Hospital Taipei, Taiwan, 100
  • Study coordinator: Yin-Hsiu Chien, MD, PhD
  • Email: chienyh@ntu.edu.tw
  • Phone: +886223123456

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • Phrenic nerve and diaphragm testing in Pompe disease

    This study tests phrenic nerve conduction and diaphragm activity in adults with Pompe disease to explore respiratory motor-unit involvement.

    Recruiting IRCCS National Neurological Institute "C. Mondino" Foundation · Pavia · NCT07664930

  • S-606001 added to enzyme replacement therapy for adults with late-onset Pompe disease

    This trial tests whether adding S-606001 to ongoing enzyme replacement therapy is safe and can improve walking distance and breathing in adults with late-onset Pompe disease.

    Recruiting at 27 sites Phase 2 Shionogi Inc. · Irvine, California and 27 other locations · NCT07123155

  • Global registry for patients with Pompe disease

    This study is collecting information from people with Pompe disease to see how well current treatments work and how they affect daily life, including both those who are being treated and those who aren't.

    Recruiting at 29 sites Amicus Therapeutics · Little Rock, Arkansas and 40 other locations · NCT06121011

  • Safety study of avalglucosidase alfa during pregnancy

    This study is looking at how safe the drug avalglucosidase alfa is for pregnant women and their babies during pregnancy and breastfeeding.

    Recruiting Sanofi · Bridgewater, New Jersey · NCT05734521

  • Understanding brain and nerve changes in Pompe disease

    This study looks at how Pompe disease affects the brain and nerves over time to see what changes happen and how they relate to everyday skills in people living with the condition.

    Recruiting Duke University · Durham, North Carolina · NCT04639336

  • Long-term follow-up for patients with Pompe disease receiving treatment

    This study is tracking patients with Pompe disease who are getting enzyme replacement therapy to see how well the treatment works over time.

    Recruiting National Taiwan University Hospital · Taipei · NCT02399748

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.