AMETHIST: A Multicenter Multinational Randomized Double-Blind Placebo-Controlled Study to Assess the Efficacy Pharmacodynamics Pharmacokinetics Safety and Tolerability of Venglustat in Late-Onset GM2 Gangliosidosis (Tay-Sachs Disease and Sandhoff Disease) Together With a Separate Basket for Juvenile/Adolescent Late-Onset GM2 Gangliosidosis and Ultra-Rare Diseases Within the Same and Similar Glucosylceramide-Based Sphingolipid Pathway (EFC15299)
Are you eligible to participate in this study?
You may be eligible for this study if you meet the following criteria:
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Conditions: Gm2 Gangliosidosis
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Age: Between 2 years - 99 years
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Gender: Male or Female
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Other Inclusion Criteria:
- Subjects have diagnosis of late-onset GM2 gangliosidosis
- Subjects ability to perform the 9-hole peg test (9-HPT)
- If subjects have history of seizures, they are well controlled under appropriate medication
- Subjects who are cooperative, able to ingest or chew and swallow oral medication, willing to travel to a study site (if applicable), and able to comply with all aspects of the study, including all assessments, according to the Investigator’s judgment
- Subjects who will use contraception methods as per the protocol
- For the juvenile and adolescent secondary population, subjects must have body weight =10 kg at the time of signing the informed consent.
You may not be eligible for this study if the following are true:
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- Subjects with clinical features of Tay-Sachs or Sandhoff disease
- Subjects who cannot understand and perform all study assessments with the exception of AIDS.
- Subjects with any clinically relevant medical disorders
- Subjects who have documented diagnosis of any of the following infections: hepatitis B, hepatitis C, human immunodeficiency virus 1 or 2
- A history of drug and/or alcohol abuse within the past year prior to the first screening visit.
- Subjects scheduled for in-patient hospitalization including elective surgery during the study
- Subjects with a cortical cataract more than one-quarter of the lens circumference (Grade cortical cataract-2) or a posterior subcapsular cataract >2 mm (Grade posterior subcapsular cataract-2). Participants with nuclear cataracts will not be excluded.
- Subjects uses invasive ventilatory support
- Subjects receives treatment with anticoagulants currently
- Received SRT within 3 months before study enrollment
- Received strong or moderate inducers or inhibitors of CYP3A4 within 14 days or 5 half-lives, whichever is longer, prior to study enrolment
- Currently receiving potentially cataractogenic medications as or any medication that may worsen the vision of participant with cataract
- Participating in another investigational interventional study
- Subjects who have renal insufficiency
- Subjects who use IMP before study enrollment
- Participant not suitable for participation, whatever the reason, including medical or clinical conditions, or participants potentially at risk of noncompliance to study procedures.
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