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Venglustat

Phase 3

Fabry Disease | Small molecule | Rare Disease |Sanofi|Last Updated: Jul 13, 2026

Target and mechanism

Molecular targetUGCG
Target classInhibitor
ModalitySmall molecule

Also known as venglustat (GZ402671), Venglustat (GZ402671)

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLEDDMC
Total Trials2
Total Enrollment226

FDA Designations

BREAKTHROUGH_THERAPYFAST_TRACKORPHAN_DRUGPRIORITY_REVIEW

Clinical trial landscape

Venglustat · 9 trials · 7 indications

Phase 3 3Phase 2 1Phase 1 5
NCT05280548A Study to Evaluate the Effect of Venglustat Tablets on Left Ventricular Mass Index in Male and Female Adult Participants With Fabry DiseaseFabry Disease
ACTIVE NOT_RECRUITING104 Analytics
NCT05222906Study to Evaluate the Efficacy and Safety of Venglustat in Adult and Pediatric Patients With Gaucher Disease Type 3Gaucher's Disease Type III
ACTIVE NOT_RECRUITING43 Analytics
NCT05206773A Study to Evaluate the Effect of Venglustat Tablets on Neuropathic and Abdominal Pain in Male and Female Participants ≥16 Years of Age With Fabry DiseaseFabry Disease
ACTIVE NOT_RECRUITING122 Analytics
PHASE3ACTIVE NOT_RECRUITING
A Study to Evaluate the Effect of Venglustat Tablets on Left Ventricular Mass Index in Male and Female Adult Participants With Fabry Disease
Fabry DiseaseUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
Study to Evaluate the Efficacy and Safety of Venglustat in Adult and Pediatric Patients With Gaucher Disease Type 3
Gaucher's Disease Type IIIUnlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
A Study to Evaluate the Effect of Venglustat Tablets on Neuropathic and Abdominal Pain in Male and Female Participants ≥16 Years of Age With Fabry Disease
Fabry DiseaseUnlock trial analytics

Study Endpoints

Primary Endpoints

Slope of left ventricular mass index as measured by cardiac magnetic resonance imaging (MRI) (central reading)
from baseline to 18 months
Change in Scale for Assessment and Rating of Ataxia (SARA) modified total score
From baseline to Week 52
Change in Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) total scale index score
From baseline to Week 52
Percent change from baseline at 6 months in the most bothersome symptom of 3 Fabry Disease Patient-Reported Outcome (FD-PRO) items (neuropathic pain in upper extremities, neuropathic pain in lower extremities, or abdominal pain)
From baseline to 6 months
Percent change from baseline at 12 months in the most bothersome symptom of 3 Fabry Disease Patient-Reported Outcome (FD-PRO) items (neuropathic pain in upper extremities, neuropathic pain in lower extremities, or abdominal pain)
From baseline to 12 months
Number of participants with Treatment Emergent Adverse Events (TEAEs)
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)
From screening through Week 52
Maximum venglustat plasma concentration observed (Cmax)
Baseline to Day 20
Area under the plasma concentration versus time curve extrapolated to infinity (AUC)
Baseline to Day 20
Maximum plasma concentration observed (Cmax) of venglustat
Multiple time points up to day 16
Area under the plasma concentration versus time curve calculated from time zero to the real time (tlast) (AUClast) of venglustat
Multiple time points up to day 16
Area under the plasma concentration versus time curve (AUC) of venglustat
Multiple time points up to day 16
Percentage of radioactive dose excreted in urine and faeces
Day -1 up to max Day 43
Cmax of plasma and blood radioactivity
Day 1 up to max Day 43

Maximum plasma or blood concentration observed

AUC Last of plasma and blood radioactivity
Day 1 up to max Day 43

Area under the plasma concentration versus time curve calculated using the trapezoidal method from time zero to the real time, tlast (time corresponding to the last concentration above the limit of quantification, Clast)

AUC Last of plasma venglustat
Day 1 up to max Day 43
tmax of plasma and blood radioactivity
Day 1 up to max Day 43

Time to Cmax

tmax of plasma venglustat
Day 1 up to max Day 43

Time to reach Cmax

Secondary Endpoints

Slope of estimated glomerular filtration rate (eGFR) as assessed by the chronic kidney disease epidemiology collaboration (CKD-EPI) creatinine equation
from baseline to 18 months
Change in T1 relaxation time, measured by cardiac MRI (central reading)
from baseline to 18 months
Change in global longitudinal strain, measured by echocardiography (central reading)
from baseline to 18 months
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
VenglustatEXPERIMENTALParticipants will receive venglustat once daily, orally
Standard of Care TherapyACTIVE_COMPARATORParticipants will receive a locally approved Fabry therapy at the standard dose and schedule (in accordance with the locally approved prescribing information)
CerezymeACTIVE_COMPARATORCerezyme
PlaceboPLACEBO_COMPARATORParticipants will receive placebo once daily for 12 months
Open label (OL) venglustatEXPERIMENTALAdministered once a day orally for up to approximately 10 years. Participants will continue their usual dose of Cerezyme during Part 1, Part 2 and Part 3. There is no administration of Cerezyme in Part 4 unless administrated as rescue treatment.
Participants with mild hepatic impairmentEXPERIMENTALVenglustat single dose on Day 1
Participants with normal hepatic functionEXPERIMENTALVenglustat single dose on Day 1
Participants with moderate hepatic impairmentEXPERIMENTALVenglustat single dose on Day 1
Participants with severe hepatic impairmentEXPERIMENTALVenglustat single dose on Day 1
Sequence 1EXPERIMENTALVenglustat hard capsule administered in period 1 followed by tablet administered in period 2.
Sequence 2EXPERIMENTALVenglustat tablet administered in period 1 followed by hard capsule administered in period 2.
Treatment AEXPERIMENTALFasted, venglustat tablet swallowed with water
Treatment BEXPERIMENTALFasted, venglustat tablet chewed and swallowed without water
Treatment CEXPERIMENTALFed, venglustat tablet swallowed with water
[14C] venglustatEXPERIMENTALSingle dose of \[14C\] venglustat Oral Solution under fasting conditions
Venglustat and ItraconazoleEXPERIMENTALThe first period will include a single dose administration of venglustat followed by a second period including a multiple dose administration of itraconazole for 12 days and a second single dose administration of venglustat on the 6th day of itraconazole administration

Interventions

NameTypeDescription
Venglustat (GZ402671)DRUGTablet; Oral
Agalsidase alfaDRUGConcentrate for solution for infusion; IV infusion
Agalsidase beta (GZ419828)DRUGPowder for concentrate for solution for infusion; IV infusion
MigalastatDRUGHard capsules; Oral
VenglustatDRUGtablet; oral
imigluceraseDRUGsterile lyophilized product; intravenous
PlaceboDRUGPharmaceutical form: Tablet Route of administration: Oral
ItraconazoleDRUGPharmaceutical form:Capsule-Route of administration:Oral
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersNo
Study Sites54

Inclusion Criteria: * Male and female participants aged 18 to 65 with previously confirmed diagnosis of Fabry disease and a history of clinical symptoms of Fabry disease. * Participants may be receiving treatment with agalsidase alfa, agalsidase beta, or migalastat, or may be untreated. * Left vent...

Countries:United StatesAustriaCanadaChinaCzechiaDenmarkFranceGermanyGreeceItalyJapanNetherlandsNorwayPolandSouth KoreaSpainTaiwanTurkey (Türkiye)United KingdomArgentinaHungaryAustraliaBrazilFinlandMexicoRomaniaSwitzerland
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Recent Changes (Last 90 Days)

LOWJul 13, 2026NCT05222906lastUpdatePostDate: changed
LOWJul 13, 2026NCT05222906lastUpdatePostDate: changed
LOWJul 10, 2026NCT02843035lastUpdatePostDate: changed
LOWJul 10, 2026NCT02843035lastUpdatePostDate: changed
LOWJun 24, 2026NCT05280548primaryCompletionDate: changed
LOWJun 24, 2026NCT05280548primaryCompletionDate: changed
LOWJun 11, 2026NCT02843035lastUpdatePostDate: changed
LOWJun 11, 2026NCT02843035lastUpdatePostDate: changed

Frequently asked questions about Venglustat

What is Venglustat used for?

Venglustat is an investigational small molecule being developed for rare diseases, including Gaucher Disease Type 1, Gaucher Disease Type 3, and Fabry Disease. It is also studied in healthy volunteers and in patients with hepatic function abnormalities or disorders of sphingolipid metabolism.

What does Venglustat target?

Venglustat is a small molecule that belongs to the -stat class of enzyme inhibitors. It targets enzymes involved in sphingolipid metabolism, which are implicated in the pathology of Gaucher and Fabry diseases.

Who makes Venglustat?

Venglustat is developed by Sanofi, a global biopharmaceutical company listed on the stock exchange under the ticker SNY. Sanofi is conducting clinical trials to evaluate the drug's safety and efficacy in multiple rare disease indications.

What phase is Venglustat in?

Venglustat is in Phase 3 clinical development for Fabry Disease and Gaucher Disease Type 3. It has received FDA designations including Breakthrough Therapy, Fast Track, Orphan Drug, and Priority Review, but it remains investigational and is not yet approved.

What clinical trials is Venglustat in?

Venglustat is being studied in several active Phase 3 trials, including NCT05206773 and NCT05280548 for Fabry Disease, and NCT05222906 for Gaucher Disease Type 3. A Phase 2 trial, NCT02843035, evaluates Venglustat in combination with Cerezyme in Gaucher Disease Type 3.

Is Venglustat the same as GZ402671?

Yes, Venglustat is also known as GZ402671. Both names refer to the same investigational drug developed by Sanofi for the treatment of lysosomal storage disorders such as Gaucher and Fabry diseases.