Study to Evaluate Efficacy and Safety of Imiglucerase Treatment in Chinese Patients With Gaucher Disease Type Ⅲ (SEED)

September 9, 2025 updated by: Sanofi

A Single Arm, Prospective, Open Label, Multicenter Study to Evaluate Efficacy and Safety of One-year Maximum Dosage in Chinese Label of Imiglucerase Treatment in Chinese Patients Who Are Diagnosed as Gaucher Disease Type Ⅲ

Primary Objective

  • To evaluate the efficacy on hematologic manifestations of imiglucerase treatment in Chinese patients who are diagnosed as Gaucher disease type Ⅲ
  • To evaluate the safety profile of imiglucerase in maximum dose in the label (60U/kg, IV biweekly) in Chinese patients.

Secondary Objective

  • To evaluate the efficacy on viscera manifestations of imiglucerase treatment in Chinese patients who are diagnosed as Gaucher disease type Ⅲ
  • To evaluate the efficacy on bone disease of imiglucerase treatment in Chinese patients who are diagnosed as Gaucher disease type Ⅲ
  • To evaluate the effect on quality of life of imiglucerase treatment in Chinese patients who are diagnosed as Gaucher disease type Ⅲ

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Approximatively 14 months including a 12 months treatment period

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
12

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
      • Beijing, China, 100020
        • Investigational Site Number : 107
      • Beijing, China, 100032
        • Investigational Site Number : 101
      • Chengdu, China, 610041
        • Investigational Site Number : 104
      • Guangzhou, China, 510080
        • Investigational Site Number : 102
      • Guangzhou, China, 510623
        • Investigational Site Number : 105

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

2 years and older (Child, Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion criteria:

  • Capable of giving signed informed consent.
  • Participant is diagnosed with GD type Ⅲ
  • Participant with neurological manifestations
  • Participant whose age is > 2 years old.
  • Participant whose spleen and/or liver volume is > ULN at Screening.

Exclusion criteria:

  • Major congenital anomaly
  • Clinically significant intercurrent organic disease unrelated to Gaucher disease, which means the disease or condition that may have impact on the parameters chosen for primary endpoints (e.g. level of hemoglobin platelets, liver/spleen enlargement and bone pains)
  • Prior treatment with ERT.
  • Physical conditions that cannot tolerate regular treatment or follow-up visit.
  • Pregnant or lactating women
  • Participant is participating in or has participated in another clinical study using any investigational therapy in 3 months
  • Participant has been diagnosed with central nervous system disease unrelated to Gaucher disease, or MRI result of the participant indicates space-occupying lesion in central nervous system
  • The patient has a documented hemoglobinopathies, deficiency of iron, vitamin B-12, or folate that requires treatment not yet initiated or, if initiated, the patient has not been stable under treatment for at least 6 months prior to administration of the first dose of Cerezyme in this study
  • Participant not suitable for participation, whatever the reason, as judged by the Investigator, including medical or clinical conditions, or participants potentially at risk of noncompliance to study procedures
  • Any specific situation during study implementation/course that may rise ethics considerations
  • Sensitivity to any of the study interventions, or components thereof, or drug or other allergy that, in the opinion of the Investigator, contraindicates participation in the study

The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Cerezyme® / Imiglucerase
Cerezyme® (imiglucerase for injection) is administered by intravenous infusion, 60 U/kg once every 2 weeks.
Drug: Cerezyme® / Imiglucerase
Pharmaceutical form: lyophilisate for solution for infusion Route of administration: intravenous

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Changes in haemoglobin
Time Frame: Baseline to the end of 12 months
The mean changes in haemoglobin
Baseline to the end of 12 months
Changes in platelet count
Time Frame: Baseline to the end of 12 months
The mean changes in platelet count
Baseline to the end of 12 months
Adverse events
Time Frame: Baseline to the end of 13 months
Number of participants with AEs
Baseline to the end of 13 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Changes in spleen volume
Time Frame: Baseline to the end of 12 months
The mean change of spleen volumne
Baseline to the end of 12 months
Changes in liver volume
Time Frame: Baseline to the end of 12 months
The mean change of liver volumne
Baseline to the end of 12 months
Skeletal involvement
Time Frame: Baseline to the end of 12 months
The changes in frequency, duration and severity of bone pain and number of bone crisis The changes in frequency, duration and severity of bone pain and number of bone crisisThe changes in frequency, duration and severity of bone pain and number of bone crisis
Baseline to the end of 12 months
Quality of life (QoL)
Time Frame: Baseline to the end of 3 months, 6 months, 9 months and 12 months
The mean change of QoL
Baseline to the end of 3 months, 6 months, 9 months and 12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Sanofi

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Clinical Sciences & Operations, Sanofi

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
March 2, 2021

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 12, 2023

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 12, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 4, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 4, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
December 7, 2020

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 15, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 9, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • LPS16031
  • U1111-1244-1166 (Registry Identifier: ICTRP)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Qualified researchers may request access to patient level data and related study documents including the clinical study report, study protocol with any amendments, blank case report form, statistical analysis plan, and dataset specifications. Patient level data will be anonymized and study documents will be redacted to protect the privacy of trial participants. Further details on Sanofi's data sharing criteria, eligible studies, and process for requesting access can be found at: https://vivli.org

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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