A Study to Investigate Behavioral and Other Co-Occurring Outcomes With Epidiolex as Add-On Therapy in Participants Aged 1 to 65 Years of Age With Tuberous Sclerosis Complex
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Phase
Phase 4
Status
Completed
Study type
Interventional
Design
Na · None · Treatment
Enrollment
79actual
Sites
19
Countries
Canada, Poland, United Kingdom +1
Every value on this page is a field the sponsor filed with ClinicalTrials.gov, reproduced. Dates are their own estimates, revised as a study runs, unless the registry marks them actual. sources →
Source: ClinicalTrials.gov, retrieved 2026-08-19
Dates
each axis at the precision it was filed, with the registry's own basis| Date | Filed | Basis | What it is |
|---|---|---|---|
| Start | 2023-06-29 | actual | When the study began enrolling |
| Primary completion | 2026-04-06 | actual | The date the last participant is measured for the primary outcome — the readout window |
| Study completion | 2026-04-06 | actual | The whole study's end, after follow-up |
| First posted | 2023-05-18 | actual | When this record first appeared on the registry |
| Results posted | — | When the sponsor posted results to the registry | |
| Record updated | 2026-04-27 | actual | The sponsor's own last edit to this record — every projection above is as current as this date |
What it studies
Condition
- Tuberous Sclerosis Complex Associated Neuropsychiatric Disease
Intervention
- Drug: Cannabidiol Oral Solution [Epidiolex] — also filed as Epidiolex
Primary outcomes
what the primary-completion date above is the date OFChange in the most problematic behavior Numerical Rating Score (NRS) score within the TAND-SQ
measured Baseline, Week 13, Week 26, Week 52
Change in Tuberous Sclerosis Complex Associated Neuropsychiatric Disorders Self-report, Quantified Checklist (TAND-SQ) score
measured Baseline, Week 13, Week 26, Week 52
Change in Aberrant Behavior Checklist (ABC) score
measured Baseline, Week 13, Week 26, Week 52
Change in Child Behavior Checklist (CBCL) score
measured Baseline, Week 26, Week 52
Change in Adult Behavior Checklist (ABCL) score
measured Baseline, Week 26, Week 52
Change in Adult Self-Report (ASR) score
measured Baseline, Week 26, Week 52
Change in Patient-Reported Outcomes Measurement Information System (PROMIS) domains score
measured Baseline, Week 26, Week 52
Change in sleep characteristics using the Children's Sleep Habits Questionnaire (CSHQ)
measured Baseline, Week 26
Change in sleep characteristics using the Pittsburgh Sleep Quality Index (PSQI)
measured Baseline, Week 26
Change in executive function using Behavior Rating Inventory of Executive Function (BRIEF)
measured Baseline, Week 26
Change in caregiver-reported assessment of Quality of Life (QOL) using Pediatric Quality of Life Survey Family Impact Module (PedsQL FIM)
measured Baseline, Week 26
Change in caregiver-reported assessment of family functioning using Pediatric Quality of Life Survey Family Impact Module (PedsQL FIM)
measured Baseline, Week 26
Change in assessment of QOL using Pediatric Quality of Life Inventory (PedsQL)
measured Baseline, Week 26
Change in caregiver impression of overall severity of symptoms (behavior and seizure control) using the Caregiver Global Impression of Severity (CareGI-S)
measured Baseline, Week 4, Week 13, Week 26, Week 52
Change in participant impression of overall severity of symptoms (behavior and seizure control) using the Patient Global Impression of Severity (PGI-S)
measured Baseline, Week 4, Week 13, Week 26, Week 52
Change in clinician impression of overall severity of symptoms (behavior and seizure control) using the Clinician Global Impression of Severity (CGI-S)
measured Baseline, Week 4, Week 13, Week 26, Week 52
Retention Rate
measured Baseline, Week 13, Week 26, Week 52
Number of participants considered treatment responders
measured Baseline, Week 4, Week 13, Week 26, Week 52
Change in number of seizure-free days
measured Baseline, Week 4, Week 13, Week 26, Week 52
Number of participants experiencing a worsening, no change, or improvement in seizure frequency
measured Baseline, Week 4, Week 13, Week 26, Week 52
Change in ideation score per the Columbia-Suicide Severity Rating Scale (C-SSRS)
measured Baseline, Week 4, Week 13, Week 26, Week 52
Change in number of suicide attempts per the C-SSRS
measured Baseline, Week 4, Week 13, Week 26, Week 52
Change in ideation score per the Children's C-SSRS
measured Baseline, Week 4, Week 13, Week 26, Week 52
Change in number of suicide attempts per the Children's C-SSRS
measured Baseline, Week 4, Week 13, Week 26, Week 52
Number of participant inpatient hospitalizations due to epilepsy
measured Up to Week 52
Number of withdrawals due to Treatment Emergent Adverse Events (TEAEs)
measured Up to Week 52
Publications
- PMID 42435131 — linked by the registry
Linked on the registry record. A “linked by the registry” entry is NLM's own automated PubMed match, not a claim by the sponsor that the paper reports this study.
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