CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 119 enrolled
Drug / intervention
AT2221 +1 moredrug
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT04138277
NCT04138277Phase 3Completed

A Phase 3 Open-label Extension Study to Assess the Long-term Safety and Efficacy of Intravenous ATB200 Co-administered With Oral AT2221 in Adult Subjects With Late-onset Pompe Disease (LOPD)

Amicus Therapeutics·interventional·Posted Oct 24, 2019·Updated Mar 5, 2026

In Brief

A Phase 3 clinical trial evaluating AT2221 and ATB200 for Pompe Disease (Late-onset). Completed, enrolled 119 participants across 60 sites in 23 countries.

Detailed Summary

This is a multicenter, international open-label extension study of ATB200/AT2221 in adult subjects with late-onset Pompe disease (LOPD) who completed Study ATB200-03.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesArgentina, Australia, Austria, Belgium, Bosnia and Herzegovina, Canada, Denmark, France, Germany, Greece, Hungary, Italy, Japan, Netherlands, New Zealand, Poland, Slovenia, South Korea, Spain, Sweden, Taiwan, United Kingdom, United States
Collaborators--

Timeline

Phase 3CompletedFinished
2020202120222023202420252026
First PostedOct 24, 2019
Enrollment StartDec 18, 2019
Primary CompletionDec 31, 2024
TodayJul 2, 2026
Enrollment to primary: 5.0 yearsPosted 6.7 years ago

Interventions

AT2221drug

Participants received ATB200 co-administered with AT2221 (miglustat)

ATB200biological

Enzyme Replacement Therapy via intravenous infusion