ClinicalTrials.gg
Not yet recruitingNCT07750990Updated Oct 13, 2026

An Extension Study of S-606001 in Participants With Late-onset Pompe Disease (LOPD)

A Phase 2 interventional study of S-606001 and ERT in Pompe Disease, sponsored by Shionogi. Not yet recruiting. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-10-13.

Sponsored by Shionogi · Phase 2, Interventional, and Treatment

Updated Oct 13, 2026Start date movedGo to Updates ↓
Phase
Phase 2
Study type
Interventional
Enrollment
60
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

The primary purpose of this study is to evaluate the long-term safety and tolerability profile of S-606001 in participants with LOPD.

Participants who completed other S-606001 studies (for example, NCT07123155), including participants in a S-606001 study whose allocated arm was terminated by the sponsor and who are willing to participate in this study, will be enrolled globally.

02

Conditions studied

  • Pompe Disease

Keywords

  • S-606001
  • Late-onset Pompe Disease
  • LOPD
  • ERT
  • Enzyme Replacement Therapy
  • NCT07123155
  • Muscle glycogen synthase
  • Liver glycogen synthase
  • Rare disease
  • Autosomal disease
  • Acid alpha-glucosidase
  • GAA
  • Glycogen storage disorder
  • GSD
03

In context

Glycogen Storage Disease Type II

162 studies on the registry are indexed under Glycogen Storage Disease Type II; 34 are open to participants now.

This study's planned enrollment of 60 is above the median of 20 across 89 interventional studies indexed under Glycogen Storage Disease Type II.

Browse Glycogen Storage Disease Type II studies →

Lead sponsor

Shionogi is the lead sponsor of 105 studies on the registry; 10 are open to participants now.

Of its 39 completed or terminated interventional studies of FDA-regulated products, 21 (54%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Key Inclusion Criteria:

  • Participant must be ≥40 kilograms of body weight at the time of signing the
  • Participants who previously completed a S-606001 Pompe treatment study, including participants whose assigned treatment arm was terminated by the sponsor

Key Exclusion Criteria:

  • Has a medical condition or any other extenuating circumstance that may, in the opinion of the investigator or medical monitor, pose an undue safety risk to the participant or may compromise his/her ability to comply with or adversely impact protocol requirements
  • Current enrollment in any other clinical study involving an intervention or any other type of medical research
  • Participant, if female, is pregnant or breastfeeding at visit 1
  • Participant, whether male or female, is planning to conceive a child during the study

Note: Other protocol-specified inclusion and exclusion criteria may apply.

Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    S-606001

    Participants will receive S-606001. Participants who were previously using enzyme replacement therapy (ERT) at the time of enrollment will receive the same regimen of ERT as standard of care.

    Drug: S-606001 · Drug: ERT

Interventions

  • S-606001 will be administered orally.

  • DrugERT

    ERT will be administered as an intravenous infusion.

06

What researchers measure

Primary outcomes

  1. Number of Participants With Treatment-emergent Adverse Events

    Time frame: Baseline through Week 96

Secondary outcomes

  1. Change from Baseline in Percent Forced Vital Capacity (%FVC)

    Time frame: Baseline, Week 96

  2. Change from Baseline in 6-minute Walk Test (6MWT)

    Time frame: Baseline, Week 96

  3. Change from Baseline in Gait, Stair, Gower's Maneuver, and Chair (GSGC) Score

    Time frame: Baseline, Week 96

  4. Change from Baseline in Daily Living Activity Levels as Assessed by the Investigator

    Time frame: Baseline, Week 96

  5. Change from Baseline in Patient-Reported Outcomes Measurement Information System Fatigue Short Form 8a (PROMIS Fatigue-8a)

    Time frame: Baseline, Week 96

  6. Change from Baseline in Patient-Reported Outcomes Measurement Information System Item Bank v2.0 - Physical Function - Short Form 20a (PROMIS-Item Bank-PF-20a)

    Time frame: Baseline, Week 96

  7. Change from Baseline in Patient-Reported Outcomes Measurement Information System Dyspnea Characteristics (PROMIS-Dyspnea)

    Time frame: Baseline, Week 96

  8. Change from Baseline in Patient-Reported Outcomes Measurement Information System v2.0 Pain Intensity 3a (PROMIS v2.0 Pain)

    Time frame: Baseline, Week 96

  9. Change from Baseline in 36-item Short Form Health Survey (SF-36)

    Time frame: Baseline, Week 96

  10. Change from Baseline in Patient Global Impression of Severity (PGI-S)

    Time frame: Baseline, Week 96

07

Study locations

No study locations are listed for this record.

08

Updates

1 registry update since Sep 25, 2026
Start date
Aug 31, 2026→Nov 2, 2026
Oct 13, 2026
Show all 1 update
  1. Oct 13, 2026
    Start date Aug 31, 2026→Nov 2, 2026
    + 1 other change: verification date

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

09

Registry details

Key details

Study ID
NCT07750990
Lead sponsor
Shionogi
Responsible party
Sponsor
First posted
Aug 6, 2026
Start date
Nov 2, 2026 (estimated)
Primary completion
Aug 31, 2028 (estimated)
Completion
Aug 31, 2028 (estimated)
Last update
Oct 13, 2026

Study contacts

Shionogi Clinical Trials Administrator Clinical Support Help Line
Contact
Shionogiclintrials-admin@shionogi.co.jp
1-800-849-9707
Medical Director
study director · Shionogi Inc.

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: S-606001

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