Epilepsia. 2022 Feb; 63(2): 426–439
Trial and study design: An open‐label extension trial
Sample size: N=201
Dosage and duration: CBD (100 mg/mL oral solution). The initial target dose was 25 mg/kg/day, which, based on response and tolerability, could be decreased or increased up to 50 mg/kg/day, median treatment time was 267 days (range, 18–910) at a 27 mg/kg/day mean modal dose.
Results:
- Median percentage reductions in seizure frequency (12-week windows across 48 weeks) were 54%–68%. Seizure responder rates (≥50%, ≥75%, 100% reduction) were 53%–61%, 29%–45%, and 6%–11% across 12-week windows for 48 weeks. Improvement on the S/CGIC scale was reported by 87% of patients/ caregivers at 26 weeks.
Safety and side effects:
- Most patients (92%) had an adverse event (AE); the most common AEs were diarrhea, seizure, and decreased appetite, and they were mostly mild or moderate in severity.
Conclusion:
- In patients with TSC, long-term add-on CBD treatment was well tolerated and sustainably reduced seizures through 48 weeks, with most patients/caregivers reporting global improvement.