Active — Not RecruitingPhase 2

Venglustat in Combination With Cerezyme in Adult Patients With Gaucher Disease Type 3 With Venglustat Monotherapy Extension

United States, Germany, Japan12 participantsStarted 2017-01-04

Plain-language summary

Part 1: Biomarker evaluation/screening phase Primary Objectives: * Evaluate cerebrospinal fluid (CSF) biomarkers in adult Gaucher disease Type 3 (GD3) participants that distinguish GD3 from adult Gaucher disease Type 1 (GD1) participants * Screen adult GD3 participants who qualify for treatment with venglustat in Parts 2, Part 3, and Part 4 Parts 2 and 3: Combination treatment phases Primary objectives: * Evaluate short-term (Part 2) and long-term (Part 3) safety and tolerability of venglustat in combination with Cerezyme in adult GD3 participants * Evaluate the change in CSF central nervous system (CNS) biomarkers (glucosylceramide \[GL-1\] and lyso-glucosylceramide \[lyso-GL-1\]) from adult GD3 participants receiving venglustat in combination with Cerezyme (Part 2 only) Part 4: Extended treatment phase with monotherapy Primary objectives: • Evaluate safety and tolerability of venglustat monotherapy in adult GD3 participants who have remained systemically stable on venglustat in combination with Cerezyme Parts 2 and 3: Combination treatment phases Secondary Objectives: * Evaluate the pharmacokinetics (PK) of venglustat in adult GD3 participants * Evaluate the efficacy of venglustat in combination with Cerezyme in systemic disease in adult GD3 participants by assessing spleen volume, liver volume, hemoglobin level and platelet count * Evaluate the efficacy of venglustat in combination with Cerezyme on neurological function in adult GD3 participants by assessing Ataxia using the Scale for the Assessment and Rating of Ataxia (SARA) * Evaluate plasma biomarkers (lyso-GL-1 and GL-1) in adult GD3 participants Part 4: Extended treatment phase with monotherapy Secondary objectives: * Evaluate the efficacy of venglustat in systemic disease in adult GD3 participants by assessing spleen volume, liver volume, hemoglobin level and platelet count * Evaluate the efficacy of venglustat on neurological function in adult GD3 participants by assessing Ataxia using the Scale for the Assessment and Rating of Ataxia (SARA) * Evaluate plasma biomarkers (lyso-GL-1 and GL-1) in adult GD3 participants

Who can participate

Age range

18 Years

Sex

ALL

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: GD3 and GD1 participants must meet the following criteria to be eligible for this study: * GD1 participant is ≥18 and ≤40 years of age. * GD3 participant is ≥18 years of age. * Participant must provide written informed consent prior to any study-related procedures being performed. * Participant has a clinical diagnosis of Gaucher disease Type 1 (GD1) or Gaucher disease Type 3 (GD3) and documented deficiency of acid beta-glucosidase activity confirming this diagnosis. * 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 and is within the therapeutic goals defined below, and is deemed clinically stable for at least 1 year by the Investigator. * Participant has reached Gaucher disease therapeutic goals defined as all of the following to be eligible for this study: * 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), or total splenectomy (provided the splenectomy occurred \>3 years prior to randomization). * 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. * Participant has maintained GD therapeutic goals defined as all of the following to be eligible for entering Part 4 of this study: …

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Number of participants with Treatment Emergent Adverse Events (TEAEs)

Timeframe: From screening up to end of study, up to approximately 10 years

Assessment of pharmacodynamic (PD) parameter: Lyso-glucosylceramide (lyso-GL1) and glucosylceramide (GL-1) in cerebrospinal fluid (CSF)

Timeframe: From screening through Week 52

Trial details

NCT IDNCT02843035

SponsorGenzyme, a Sanofi Company

Sponsor typeINDUSTRY

Study typeINTERVENTIONAL

Primary completion2026-10-30

View on ClinicalTrials.gov More Gaucher Disease Type 1 trials