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Clinical Study for Treatment-naïve IOPD Babies to Evaluate Efficacy and Safety of ERT With Avalglucosidase Alfa

Active, not recruiting · Phase 3 · NCT04910776

Conditions: Glycogen Storage Disease Type II

At a glance

Research payments reported, 2025
$665,445
U.S. investigators named
5
Sites paid
5
Planned or actual enrollment
17

About the trial

Sponsor
Sanofi
Tested
avalglucosidase alfa (drug)
Dates
Started 2021-09-01; completion 2027-08-10
Results posted
Not yet

This is a single group, treatment, Phase 3, open-label study to assess efficacy, safety, pharmacokinetic (PK), pharmacodynamics (PD) of avalglucosidase alfa in treatment-naïve male and female participants with IOPD. Study details include: * Study duration: Screening - up to 4 weeks; * Primary Analysis Period (PAP) - 52 weeks; * Extended Treatment Period (ETP) - 52 weeks; * Extended Long term Treatment Period (ELTP) - 104 weeks; 4-week follow-up period for a total study duration - up to 4.08 years. * Treatment duration: Up to 4 years * Visit frequency: every other week and potentially every week

From ClinicalTrials.gov, last updated 2026-04-08. Full record, eligibility and contacts (opens in a new tab)

Industry funding

Genzyme Corporation reported $665,445 in research payments for this study in 2025 (43 payments).

Products named: Nexviazyme

Research payments usually go to hospitals, universities and research sites to run a study, not to the investigators personally. A payment is not evidence of wrongdoing.

U.S. investigators named on this study

Clinicians the company named as principal investigators in its Open Payments reports.

Sites paid to run it

Sources: CMS Open Payments research payments (program year 2025) and ClinicalTrials.gov, U.S. National Library of Medicine.