Study to Evaluate the Efficacy and Safety of Venglustat in Adult and Pediatric Patients With Gaucher Disease Type 3

NCT ID: NCT05222906

Last Updated: 2025-10-17

Basic Information

• Recruitment Status: ACTIVE_NOT_RECRUITING
• Clinical Phase: PHASE3
• Total Enrollment: 43 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2022-04-18
• Study Completion Date: 2026-10-30

Brief Summary

This is a parallel arm, Phase 3, double-blind, double-dummy, active-comparator, 2 arm study to evaluate the efficacy and safety of daily oral venglustat versus intravenous Cerezyme infusions every two weeks for improvement or stabilization of the neurological manifestations and maintenance of systemic disease stability in participants aged ≥12 and <18 years and adult patients with Gaucher disease Type 3 (GD3) who have been treated with Enzyme Replacement Therapy (ERT) for at least 3 years.

Detailed Description

Screening period: 45 days

Double blind, double-dummy, primary analysis treatment period: 52 weeks

Open label extended treatment period: minimum of 52 weeks due to a common study end of treatment date

Follow up phone call: 30-37 days after end of treatment

Conditions

Gaucher's Disease Type III

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: QUADRUPLE

Study Groups

Venglustat

Venglustat

Group Type: EXPERIMENTAL

Venglustat

Intervention Type: DRUG

tablet; oral

Cerezyme

Cerezyme

Group Type: ACTIVE_COMPARATOR

imiglucerase

Intervention Type: DRUG

sterile lyophilized product; intravenous

Interventions

Venglustat

tablet; oral

Intervention Type: DRUG

imiglucerase

sterile lyophilized product; intravenous

Intervention Type: DRUG

Other Intervention Names

Cerezyme®

Eligibility Criteria

Inclusion Criteria

• The participant has received ERT (Cerezyme or other ERT; as deemed appropriate by local regulations) for at least 3 years prior to enrollment, on a stable dose for at least 6 months, is deemed clinically stable for at least 1 year by the Investigator and is within the therapeutic goals as all of the following:

• Hemoglobin level of ≥11.0 g/dL for females and ≥12.0 g/dL for males
• Platelet count ≥100 000/mm3
• Spleen volume <10 multiples of normal (MN)
• Liver volume <1.5 MN
• No bone crisis and free of symptomatic bone disease such as bone pain attributable to osteonecrosis and/or pathological fractures within 3 months prior to screening
• Adult participant is ≥18 years of age
• Pediatric participant is ≥12 years <18 years of age
• The participant has a clinical diagnosis of GD3 and a documented deficiency of acid beta-glucosidase activity confirming this diagnosis.
• The participant has a modified SARA score of 1 or above.
• The presence of gaze palsy, predominantly horizontal, with slow or absent saccades.
• If the participant has a history of seizures, they are well controlled under appropriate medication not identified as a strong or moderate inducer or inhibitor of CYP3A.
• Participants ≥ 30 kg of weight
• Contraception for sexually active male or female participants; not pregnant or breastfeeding; no sperm donating for male participant
• Signed written informed assent/consent

Exclusion Criteria

• The participant is blood transfusion-dependent.
• Prior esophageal varices or liver infarction or current liver enzymes (alanine aminotransferase [ALT]/ aspartate aminotransferase [AST]) or total bilirubin >2 times the upper limit of normal, unless the participant has a diagnosis of Gilbert Syndrome.
• The participant has any clinically significant disease, other than GD, including cardiovascular (congenital cardiac defect, coronary artery disease, valve disease or left sided heart failure; clinically significant arrhythmias or conduction defect), hepatic, gastrointestinal, pulmonary, neurologic, endocrine, metabolic (eg, hypokalemia, hypomagnesemia) or psychiatric disease, other medical conditions, or serious intercurrent illnesses that may preclude participation in the opinion of the Investigator.
• The participant has renal insufficiency, as defined by an estimated glomerular filtration rate <30 mL/min/1.73m2 at the screening visit.
• The participant has a history of cancer, except for basal cell carcinoma.
• The participant has progressive myoclonic epilepsy.
• The participant is pregnant (has a positive serum beta-human chronic gonadotropin [β-hCG]) or lactating.
• The participant requires use of invasive ventilatory support.
• The participant requires use of noninvasive ventilator support while awake for longer than 12 hours daily.
• The participant is scheduled for in-patient hospitalization including elective surgery, during the study.
• The participant has had a major organ transplant (eg, bone marrow or liver).
• A history of drug and/or alcohol abuse within the past year prior to the screening visit.
• Chaperone therapy within 6 months, substrate reduction therapy other than venglustat within 6 months or venglustat substrate reduction therapy prior to enrollment.
• Exposure to any investigational drug within the last 30 days or 5 half-lives from screening, whichever is longer.
• The participant has received strong or moderate inducers or inhibitors of CYP3A within 14 days or 5 half-lives from screening, whichever is longer, prior to screening. This also includes the consumption of grapefruit, grapefruit juice, or grapefruit containing products within 72 hours of starting venglustat. The participant is unwilling to abstain from consumption of grapefruit, grapefruit juice, or grapefruit containing products for the duration of the treatment period.
• The participant, in the opinion of the investigator, is unable to adhere to the requirements of the study or unable to undergo study assessments (eg, contraindication for MRI).
• Type of participant and disease characteristic: the participant has had a total splenectomy prior to enrollment. The patient had a partial splenectomy within 3 years prior to randomization.
• 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
• 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 potential participation in a clinical trial.

• Minimum Eligible Age: 12 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Sanofi

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Clinical Sciences & Operations

Role: STUDY_DIRECTOR

Sanofi

Locations

Yale University School of Medicine - Investigational Site Number: 8400003

New Haven, Connecticut, United States

University of Iowa - Investigational Site Number: 8400002

Iowa City, Iowa, United States

Texas Oncology - Medical City Dallas Site Number : 8400008

Dallas, Texas, United States

Lysosomal & Rare Disorders Research & Treatment Center, Inc - Investigational Site Number: 8400001

Fairfax, Virginia, United States

Hospital de Ninos - Investigational Site Number: 320001

Buenos Aires, , Argentina

Children's Hospital Research Institute of Manitoba - Investigational Site Number: 1240001

Winnipeg, Manitoba, Canada

National Taiwan University Hospital-Investigational Site Number: 1580001

Taipei, Taiwan, China

Peking Union Medical College Hospital - Investigational Site Number: 1560001

Beijing, , China

The First Affiliated Hospital - Investigational Site Number: 1560002

Guangzhou, , China

Xinhua Hospital - Investigational Site Number: 1560004

Shanghai, , China

47-87, boulevard de l'hôpital - Investigational Site Number: 2500003

Paris, , France

Hopital Necker - Investigational Site Number: 2500001

Paris, , France

SphinCS GmbH - Investigational Site Number: 2760001

Hochheim am Main, , Germany

Debreceni Egyetem, Klinikai Központ, Reumatológiai Klinika - Investigational Site Number: 3480001

Debrecen, , Hungary

Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico - Investigational Site Number : 3800003

Milan, Lombardy, Italy

Azienda Ospedaliera Universitaria (AOU) "Federico II" - Investigational Site Number: 3800002

Napoli, , Italy

Odawara Municipal Hospital-Investigational Site Number : 3920002

Odawara, Kanagawa, Japan

Tohoku University School of Medicine - Investigational Site Number: 3920001

Sendai, , Japan

Cukurova University Medical School Hospital-Investigational Site Number : 7920001

Adana, , Turkey (Türkiye)

Gazi University Medical Hospital-Investigational Site Number : 7920002

Ankara, , Turkey (Türkiye)

Istanbul University Medical Faculty Hospital-Investigational Site Number : 7920004

Istanbul, , Turkey (Türkiye)

Investigational Site Number : 8260001

London, , United Kingdom

Countries

United States; Argentina; Canada; China; France; Germany; Hungary; Italy; Japan; Turkey (Türkiye); United Kingdom

Related Links

https://www.trialsummaries.com/Study/StudyDetails?id=25262&tenant=MT_SNY_9011

EFC17215 Plain Language Results Summary

Other Identifiers

U1111-1265-6930

Identifier Type: REGISTRY

Identifier Source: secondary_id

2024-514381-39

Identifier Type: REGISTRY

Identifier Source: secondary_id

2021-005402-10

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

EFC17215

Identifier Type: -

Identifier Source: org_study_id