Agalsidase Beta Long-Term Treatment Outcome for Fabry Disease Patients With IVS4 Mutation in Taiwan

NCT ID: NCT06052800

Last Updated: 2025-03-21

Basic Information

• Recruitment Status: ACTIVE_NOT_RECRUITING
• Total Enrollment: 78 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2023-09-13
• Study Completion Date: 2026-09-10

Brief Summary

This is a national, multicenter, observational, cohort study designed to assess clinical outcomes upon agalsidase beta treatment, to characterize the clinical manifestations, and to collect the natural history on male and female Fabry disease adult patients who carry the GLA IVS4.

This study aims to retrospectively and prospectively investigate the disease natural history, clinical manifestations, and the treatment outcomes upon agalsidase beta in Fabry disease (FD) patients carrying the GLA IVS4 mutation from medical records, physician assessments, and patient-reported outcomes.

Detailed Description

Study Design Time Perspective: Retrospective and Prospective

Conditions

Fabry Disease

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: OTHER

Study Groups

Cohort 1

Patients with Galactosidase Alpha gene (GLA) IVS4 who have already received agalsidase beta treatment

No interventions assigned to this group

Cohort 2

Patients with GLA IVS4 who will initiate agalsidase beta treatment

No interventions assigned to this group

Cohort 3

Enzyme replacement therapy (ERT)-naive Fabry disease patients with GLA IVS4

No interventions assigned to this group

Eligibility Criteria

Inclusion Criteria

• Provide signed informed consent.

Cohort 1:

• Male or female Fabry disease patient with documented GLA IVS4 in medical record.
• Age ≥ 18 years old at the time of signing informed consent.
• The maximum proportion of female is 20% of cohort 1.
• Patient who has received agalsidase beta treatment for at least 6 months.
• The data of LVMI, LPWT, IVST and blood lyso-Gb3 concentration are all available within 6 months prior to agalsidase beta treatment initiation.

Cohort 2:

• Male or female Fabry disease patient with documented GLA IVS4 in medical record.
• Age ≥ 18 years old at the time of signing informed consent.
• The maximum proportion of female is 20% of cohort 2.
• Patient who plans to apply for the National Health Insurance Reimbursement for agalsidase beta medication.
• The data of LVMI, LPWT, IVST and blood lyso-Gb3 concentration are all available within 6 months prior to agalsidase beta treatment initiation.

Cohort 3:

• Male or female Fabry disease patients with documented GLA IVS4 mutation in medical record.
• Male patient is aged ≥ 30 years old and female patient is aged ≥ 40 years old at the time of signing informed consent.
• The maximum proportion of female is 20% of cohort 3.
• Patient who has never received agalsidase alpha or agalsidase beta treatment (ERT-naïve).
• Elevated blood lyso-Gb3.
• At least ONE of the following conditions documented in medical record:

1. cardiac parameter abnormalities (e.g. via imaging, electrophysiology, or biomarker);

2. at least one FD-related sign/symptom.

• The data of LVMI, LPWT, IVST and blood lyso-Gb3 concentration are all available within 6 months.
• Patients who are expected not to receive ERT or FD-specific treatment per investigator's judgement.

Exclusion Criteria

• Any condition that, in the opinion of the Investigator, may interfere with patient's participation in the study, such as life expectancy of less than 6 months (e.g. diagnosed with malignancy, CAD)
• Fabry patients who have severe heart disease (NYHA Class IV) or severe myocardial fibrosis per investigator judgement
• Known non-Fabry disease infiltrative cardiomyopathy including amyloidosis
• Known non-GLA genetic (e.g., sarcomeric, metabolic mutations) hypertrophic cardiomyopathy.
• Patients who are receiving any Fabry disease-specific treatment (enzyme replacement therapy, chaperone therapy, substrate reduction therapy, or gene therapy) other than agalsidase beta for Fabry disease
• Pregnancy or suspected pregnancy
• Patient diagnosed with moderate to severe dementia
• Unstable patient condition as judged by investigator (e.g., hypertension, diabetes, and systematic disease)

• Minimum Eligible Age: 18 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Sanofi

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Clinical Sciences and Operations

Role: STUDY_DIRECTOR

Sanofi

Locations

Investigational Site Number : 1580004

Taichung, , Taiwan

Investigational Site Number : 1580005

Tainan City, , Taiwan

Investigational Site Number : 1580001

Taipei, , Taiwan

Investigational Site Number : 1580003

Taipei, , Taiwan

Investigational Site Number : 1580002

Taipei, , Taiwan

Countries

Taiwan

Other Identifiers

U1111-1287-7177

Identifier Type: REGISTRY

Identifier Source: secondary_id

OBS17349

Identifier Type: -

Identifier Source: org_study_id