A Study to Evaluate the Effect of Venglustat Tablets on Neuropathic and Abdominal Pain in Male and Female Adult Participants With Fabry Disease
This is a 12-month, parallel treatment, Phase 3, double-blind, randomized, placebo controlled study to evaluate the effect of venglustat on neuropathic and abdominal pain symptoms of Fabry disease in adult participants with Fabry disease who are treatment-naïve or untreated for at least 6 months.- Study visits will take place approximately every 3 months. - The double-blind period will be followed by an open-label extension (OLE) during which participants who have completed the double-blind period will be treated with venglustat for up to an additional 12 months.
- Male and female adult patients 18 year of age or older, who have had a previously confirmed diagnosis of Fabry disease and a history of clinical symptoms of Fabry disease
- Patients who are treatment-naïve or without prior treatment with an approved or experimental therapy for Fabry disease within at least 6 months prior to screening.
- Elevated plasma globotriaosylsphingosine (lysoGL3) at screening, or a previous biopsy of any organ that shows deposition of GL3.
- Average score of ≥3 (0=no symptom, 10=symptom as bad as you can imagine) on the participant-defined most-bothersome symptom (among neuropathic pain in upper extremities, neuropathic pain in lower extremities, or abdominal pain), as measured by the Fabry Disease Patient-Reported Outcome (FD-PRO) at screening.
- Contraception (with double contraception methods) for male and female participants; not pregnant or breastfeeding for female participants; no sperm donation for male participants.
- A signed informed consent must be provided prior to any study-related procedures.
- Any manifestations of Fabry disease that preclude placebo administration.
- History of transient ischemic attack, stroke, myocardial infarction, heart failure, major cardiovascular surgery, or kidney transplantation.
- History of ongoing clinically significant cardiac arrhythmia or prior or ongoing treatment for the above.
- Patients with hepatitis C, HIV, or hepatitis B infection.
- Neuropathic pain in upper or lower extremities, or abdominal pain not related to Fabry disease.
- History of seizures currently requiring treatment.
- Uncontrolled hypertension over the past 12 months prior to screening.
- Estimated glomerular filtration rate <60 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.
- Positive SARS-CoV-2 virus test within 2 weeks of enrollment, or COVID 19 requiring hospitalization within 6 months of enrollment.
- Moderate to severe hepatic impairment.
- History of drug and/or alcohol abuse.
- History of or active hepatobiliary disease.
- Liver enzymes (alanine aminotransferase (ALT)/aspartate aminotransferase (AST)) or total bilirubin >2 times the upper limit of normal (ULN).
- Initiation of chronic treatment for pain, or change in pain medication regimen, within 3 months prior to randomization.
- Strong or moderate inducers or inhibitors of cytochrome P450 CYP3A per FDA classification within 14 days or 5 halflives, whichever is longer, prior to randomization. The above information is not intended to contain all considerations relevant to a potential participation in a clinical trial.