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Active, not recruitingNCT05039866Updated Aug 20, 2026

Long-Term Follow-up of Subjects Who Were Treated With ST-920

An observational study in Fabry Disease and Fabry Disease, Cardiac Variant, sponsored by Sangamo Therapeutics. Active, not recruiting at 13 sites in 5 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-20.

Sponsored by Sangamo Therapeutics · Observational

Study type
Observational
Model
Case-only
Time perspective
Prospective
Enrollment
32
Ages
18 Years and older
Sex
All
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Study summary

Long-term follow-up of subjects who received ST-920 in a previous trial (ST-920-201) and completed at least 52 weeks post-infusion follow-up in their primary protocol. Enrolled subjects will be followed for a total of up to 5 years following ST-920 infusion.

Read the detailed description

Non-interventional, multi-center, long-term follow-up (LTFU) study of subjects dosed with ST-920 in the clinical study ST-920-201. All subjects dosed in the study who completed at least 52 weeks post-infusion follow-up in their primary protocol will be offered to participate. Subjects who enroll will be monitored for a total of up to 5 years following ST-920 infusion.

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Conditions studied

  • Fabry Disease
  • Fabry Disease, Cardiac Variant

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Keywords

  • Fabry Disease
  • Gene Therapy
  • ST-920
  • Rare
  • Genetic
  • DNA
  • Sangamo
  • Long Term
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In context

Fabry Disease

242 studies on the registry are indexed under Fabry Disease; 54 are open to participants now.

This study's enrollment of 32 is below the median of 100 across 123 observational studies indexed under Fabry Disease.

Browse Fabry Disease studies →

Lead sponsor

Sangamo Therapeutics is the lead sponsor of 27 studies on the registry; 1 is open to participants now.

Of its 6 completed or terminated interventional studies of FDA-regulated products, 4 (67%) have results posted.

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

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

All subjects who have received ST-920 in separate parent trial and who have consented to participate in this Long Term Follow-up study.

Inclusion criteria

  • Subjects who received ST-920 therapy in a separate parent trial
  • Subjects who have consented to participate in this LTFU study.

Exclusion criteria

Exclusion Criteria:

-This study has no exclusion criteria

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Study design

Observational model
Case-only
Time perspective
Prospective
Enrollment
32 participants (actual)
Patient registry
No
Biospecimen retention
Samples with dna

Groups and cohorts

  • Subjects who received ST-920

    Subjects who received ST-920 in a separate parent trial

    Biological: ST-920

Interventions

  • BiologicalST-920

    No study drug is administered in this study. Subjects who received ST-920 in a separate parent trial will be evaluated in this trial for long-term safety.

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What researchers measure

Primary outcomes

  1. To evaluate long-term safety of ST-920

    To evaluate long-term safety of ST-920 by assessment of incidence and severity of adverse events (AEs)

    Time frame: 4 years

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Study locations

13 sites
  • University of California, Irvine
    Irvine, California 92697, United States
  • University of South Florida
    Tampa, Florida 33620, United States
  • Emory University School of Medicine
    Atlanta, Georgia 30322, United States
  • University of Iowa Hospital and Clinics
    Iowa City, Iowa 52242, United States
  • University of Minnesota Medical Center
    Minneapolis, Minnesota 55455, United States
  • Mt. Sinai Hospital
    New York, New York 10029, United States
  • Cincinnati Children's Hospital Medical Center
    Cincinnati, Ohio 45229, United States
  • Lysosomal & Rare Disorders Research & Treatment Center (LDRTC)
    Fairfax, Virginia 22030, United States
  • The Royal Melbourne Hospital
    Parkville, Victoria 3050, Australia
  • M.A.G.I.C. Clinic Ltd.
    Calgary, Alberta T2E 7Z4, Canada
  • University Hospital of Würzburg
    Würzburg, Germany
  • Addenbrooke's Hospital
    Cambridge, CB2 0QQ, United Kingdom
  • Royal Free Hospital
    London, United Kingdom
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 20, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05039866
Lead sponsor
Sangamo Therapeutics
Responsible party
Sponsor
First posted
Sep 10, 2021
Start date
Aug 16, 2021
Primary completion
Mar 2029 (estimated)
Completion
Mar 2039 (estimated)
Last update
Aug 20, 2026

Study contacts

Medical Monitor
study director · Sangamo Therapeutics, 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 active, not recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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