A Study to Evaluate the Effect of Venglustat Tablets on Left Ventricular Mass Index in Male and Female Adult Participants With Fabry Disease

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 ventricular hypertrophy. * Contraception for male or female participants: not pregnant or breastfeeding; no sperm donating for male participant. * A signed informed consent must be provided prior to any study-related procedures. Exclusion Criteria: * History of transient ischemic attack, stroke, myocardial infarction, heart failure, major cardiovascular surgery or kidney transplantation. * History of seizures currently requiring treatment. * Underlying medical condition that may cause or contribute to left ventricular hypertrophy. * Asymmetric hypertrophy by cardiac MRI at screening if considered by central reader to be not related to Fabry disease. * Advanced cardiac fibrosis, defined as significant late gadolinium enhancement affecting 3 or more segments involving \>50% of myocardial thickness on screening cardiac MRI. * History of clinically significant cardiac arrhythmia. Atrial fibrillation that is well controlled on a stable medical regimen for at least 12 months is not an exclusion if the CHA2DS2-VASc score is 0 for males or 1 for females. * Estimated glomerular filtration rate \<45 mL/min/1.73m2. * Presence of severe depression as measured by Beck's Depression Inventory (BDI)-II \>28 and/or a history of an untreated, unstable major affective disorder within 1 year of the screening visit. * Patients with hepatitis C, HIV, or hepatitis B infection. * Positive SARS-CoV-2 virus test within 2 weeks of enrollment, or COVID-19 requiring hospitalization within 6 months of enrollment. * History of drug and/or alcohol abuse. * Moderate to severe hepatic impairment. * History of or active hepatobiliary disease. * Liver enzymes (alanine aminotransferase/aspartate aminotransferase) or total bilirubin \>2 times the upper limit of normal. * Strong or moderate inducers or inhibitors of cytochrome P450 CYP3A4 within 14 days or 5 half-lives, whichever is longer, prior to randomization. * Known contraindication to undergoing MRI or known hypersensitivity to gadolinium-based contrast agents. The above information is not intended to contain all considerations relevant to a potential participation in a clinical trial.