A Phase 4, Interventional, Multicenter, Open-Label, Single-Arm Study to Assess Behavioral and Other Co-occurring Outcomes Following Treatment With EPID(I/Y)OLEX as Add-on Therapy in Participants (Aged 1 to 65 Years Old) With Seizures Associated With Tuberous Sclerosis Complex

Inclusion criteria

• 1. Is within the required age range at the time of signing (or at the time of the participant's parent(s)/Legally Authorized Representative (LAR) signing) the informed consent or providing assent (as applicable):
• Participants based in the US: 1 to 65 years of age, inclusive.
• Participants based outside the US: 2 to 65 years of age, inclusive. 2. Has a confirmed clinical diagnosis of TSC with a history of seizures in accordance with the 2012 International Tuberous Sclerosis Complex Consensus Conference criteria. 3. Has behaviors (eg, aggression, impulsivity, temper tantrum, self-injury, hyperactivity, extreme shyness, mood swings, poor eye contact, repetitive behaviors, restlessness, difficulty getting along with peers, rigid/inflexible to procedure and/or change) that are considered moderate or severe per the CareGI-S at Screening. 4. Is taking 1 or more anti-seizure medicine (ASM) at a dose that has been stable for at least 4 weeks prior to Screening.
• All medications or interventions for epilepsy (including ketogenic diet and any neurostimulation devices for epilepsy) must have been stable for 4 weeks prior to screening and any major changes to treatment regimens should be discussed with the medical monitor. 5. Is naïve to CBD-OS treatment or has been off CBD-OS treatment for at least 3 months prior to Screening. 6. Is willing to maintain any factors expected to affect seizures stable (eg, alcohol consumption, smoking, concomitant medication usage). 7. Is male or female 1. Male participants:
• Male participants are eligible to participate if they agree to the following during the intervention period and for at least 2 weeks, corresponding to the time needed to eliminate the study intervention after the last dose of study intervention:
• Refrain from donating fresh unwashed semen. PLUS
• Use a male condom in addition to a second method of acceptable contraception used by their female partners when having sexual intercourse with a women of childbearing potential (WOCBP) who is not currently pregnant. 2. Female participants:
• A female participant is eligible to participate if she is not pregnant or breastfeeding and one of the following conditions applies:
• Is a woman of nonchildbearing potential. OR
• Is a WOCBP and using a contraceptive method that is highly effective, preferably with low user dependency during the study intervention period and for at least 3 months after the last dose of study intervention. The investigator should evaluate the potential for contraceptive method failure (eg, noncompliance, recently initiated) in relationship to the first dose of study intervention.