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Cipaglucosidase Alfa

Phase 3

Pompe Disease (Late-onset) | Monoclonal antibody | Rare Disease |Amicus Therapeutics, Inc.|Last Updated: Jan 22, 2026

Success Probability

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLEDDMC
Total Trials2
Total Enrollment146

FDA Designations

No designations recorded

Clinical trial landscape

Cipaglucosidase Alfa · 3 trials · 2 indications

Phase 3 3
NCT04808505A Study to Evaluate the Safety, Efficacy, PK, PD and Immunogenicity of Cipaglucosidase Alfa/Miglustat in IOPD Subjects Aged 0 to <18Glycogen Storage Disease Type II Infantile Onset
RECRUITING36 Analytics
NCT03911505ZIP Study-OL Study of Safety, PK, Efficacy, PD, Immunogenicity of ATB200/AT2221 in Pediatrics Aged 0 to < 18 y.o. w/LOPDPompe Disease (Late-onset)
ACTIVE NOT_RECRUITING21 Analytics
NCT03729362A Study Comparing ATB200/AT2221 With Alglucosidase Alfa/Placebo in Adult Subjects With Late-onset Pompe DiseasePompe Disease (Late-onset)
COMPLETED125 Analytics
PHASE3RECRUITING
A Study to Evaluate the Safety, Efficacy, PK, PD and Immunogenicity of Cipaglucosidase Alfa/Miglustat in IOPD Subjects Aged 0 to <18
Glycogen Storage Disease Type II Infantile OnsetUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
ZIP Study-OL Study of Safety, PK, Efficacy, PD, Immunogenicity of ATB200/AT2221 in Pediatrics Aged 0 to < 18 y.o. w/LOPD
Pompe Disease (Late-onset)Unlock trial analytics
PHASE3COMPLETED
A Study Comparing ATB200/AT2221 With Alglucosidase Alfa/Placebo in Adult Subjects With Late-onset Pompe Disease
Pompe Disease (Late-onset)Unlock trial analytics

Study Endpoints

Primary Endpoints

Proportion of subjects with infusion-associated reactions (IARs)
104 weeks
Incidence of treatment-emergent adverse events (TEAEs) from baseline
52 weeks
Change From Baseline to Week 52 in 6 Minute Walk Distance (6MWD)
Baseline, Week 52

The efficacy of cipaglucosidase alfa/miglustat co-administration on ambulatory function was measured by the 6MWT. The 6MWD, measured in meters, is the distance walked on the 6MWT. A greater distance indicated greater endurance. An increase from baseline indicated improvement.

Secondary Endpoints

Assessment of pharmacokinetic parameters
52 weeks
Change From Baseline to Week 52 in Sitting Forced Vital Capacity (FVC; % Predicted)
Baseline, Week 52
Change From Baseline to Week 52 in the Manual Muscle Test (MMT) Score for the Lower Extremities
Baseline, Week 52
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Cohort 1: Cipaglucosidase Alfa/Miglustat in ERT-experienced pediatric IOPD subjectsEXPERIMENTALPediatric IOPD subjects 6 months to \<18 years experiencing clinical decline
Cohort 2: Cipaglucosidase Alfa/Miglustat in ERT-naïve pediatric IOPD subjectsEXPERIMENTALPediatric IOPD subjects \<6 months
Cipaglucosidase Alfa (ATB200)/Miglustat(AT2221)EXPERIMENTALParticipants received Cipaglucosidase Alfa (ATB200) co-administered with Miglustat (AT2221) capsule
Cipaglucosidase Alfa/MiglustatEXPERIMENTALParticipants received cipaglucosidase alfa co-administered with miglustat every 2 weeks (Q2W).
Alglucosidase Alfa/PlaceboACTIVE_COMPARATORParticipants received alglucosidase alfa co-administered with placebo Q2W.

Interventions

NameTypeDescription
Cipaglucosidase alfaBIOLOGICALSterile lyophilized powder intravenous (IV) infusion
MiglustatDRUG65 mg oral capsules
Alglucosidase AlfaBIOLOGICALParticipants received an IV infusion dose over a 4-hour duration Q2W.
PlaceboDRUGMiglustat matching placebo was administered orally 1 hour prior to alglucosidase alfa infusion Q2W.
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Eligibility Criteria

Age RangeN/A to 17 Years
SexALL
Healthy VolunteersNo
Study Sites14

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 immediate...

Countries:United StatesGermanyItalyNetherlandsTaiwanUnited KingdomAustraliaCanadaJapanArgentinaAustriaBelgiumBosnia and HerzegovinaBulgariaDenmarkFranceGreeceHungaryNew ZealandPolandSloveniaSouth KoreaSpainSweden
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Frequently asked questions about Cipaglucosidase Alfa

What is Cipaglucosidase Alfa used for?

Cipaglucosidase Alfa is an investigational therapy being studied for Glycogen Storage Disease Type II Infantile Onset and Pompe Disease (Late-onset). It is a monoclonal antibody developed by Amicus Therapeutics, Inc. (NASDAQ: FOLD) and is currently in Phase 3 clinical development for these rare disease indications.

What does Cipaglucosidase Alfa target?

Cipaglucosidase Alfa is a monoclonal antibody designed to treat Pompe disease by providing enzyme replacement therapy. It targets the underlying enzyme deficiency in patients with Glycogen Storage Disease Type II, helping to address the accumulation of glycogen in tissues.

Who makes Cipaglucosidase Alfa?

Cipaglucosidase Alfa is developed by Amicus Therapeutics, Inc., a biopharmaceutical company traded on NASDAQ under the ticker symbol FOLD. The company is conducting Phase 3 clinical trials to evaluate the safety and efficacy of this investigational therapy for Pompe disease.

What phase is Cipaglucosidase Alfa in?

Cipaglucosidase Alfa is in Phase 3 clinical development. It is an investigational drug and has not been approved by regulatory authorities. Clinical trials are ongoing to assess its safety and efficacy in patients with late-onset Pompe disease and infantile-onset Glycogen Storage Disease Type II.

What clinical trials is Cipaglucosidase Alfa in?

Cipaglucosidase Alfa is being evaluated in three Phase 3 trials. NCT03729362 is a completed study in adults with late-onset Pompe disease. NCT03911505 is an active but not recruiting study in pediatric patients with late-onset Pompe disease. NCT04808505 is currently recruiting for infantile-onset Glycogen Storage Disease Type II.

Is Cipaglucosidase Alfa the same as ATB200?

Cipaglucosidase Alfa is the same as ATB200. Clinical trial titles refer to the combination of ATB200/AT2221, where ATB200 is cipaglucosidase alfa and AT2221 is miglustat, a chaperone therapy. This combination is being studied in Phase 3 trials for Pompe disease.