Cannabidiol Oral Solution in Pediatric Participants With Treatment-Resistant Childhood Absence Se… (NCT03336242) | Clinical Trial Compass
TerminatedPhase 2
Cannabidiol Oral Solution in Pediatric Participants With Treatment-Resistant Childhood Absence Seizures
Stopped: More patients in Cohort 1 than Cohort 2 demonstrated a clinically meaningful reduction of seizure count. Given this, enrollment of Cohort 3 was discontinued.
United States20 participantsStarted 2017-12-29
Plain-language summary
The primary purpose of this study is to assess the efficacy of Cannabidiol Oral Solution in the treatment of pediatric participants with treatment-resistant childhood absence seizures. This study will also assess safety, tolerability and pharmacokinetics of Cannabidiol Oral Solution, and any improvement in qualitative assessments of participant status over the duration of the study in pediatric participants with treatment-resistant childhood absence seizures. The study will include a 4-week Screening Period, a 5 or 10 day Titration Period (depending study Cohort), a 4-week Treatment Period followed by 5-day Tapering for doses \>20 mg/kg/day and a 4-week Follow-up Period.
Who can participate
Age range3 Years – 17 Years
SexALL
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Inclusion criteria
✓. Patient and/or parent(s)/caregiver(s) fully comprehend the informed consent form and assent form, understand all study procedures, and can communicate satisfactorily with the investigator and study coordinator, in accordance with applicable laws, regulations, and local requirements.
✓. Male or female between 3 and 12 years (inclusive) at the time of onset and between 3 and 17 years of age (inclusive) at the time of consent.
✓. Body weight ≥ 10 kg.
✓. Diagnosed with childhood absence epilepsy, confirmed by electroencephalogram (EEG) with at least 3 bursts of general spike wave of 2.7 to 5 hertz lasting ≥3 seconds during the 4-hour EEG, and has had an adequate trial of at least 2 antiepileptic drugs (AEDs) and are treatment-resistant to at least one AED.
✓. Willingness to not start a ketogenic diet during the Baseline or Treatment Period.
✓. A female patient is eligible to participate in the study if she is premenarchal, or of childbearing potential with a negative urine pregnancy test at the Screening Visit. If sexually active, she must agree to either complete abstinence from intercourse or use acceptable methods of contraception throughout the study and for 4 weeks after completion of study participation or discontinuation from investigational product.
✓. A sexually active male patient must be willing to use acceptable methods of contraception throughout the study and for 4 weeks after completion of study participation or discontinuation from investigational product.
What they're measuring
1
Percent Change From Baseline in Absence Seizure Counts Assessed by Video-electroencephalogram (EEG) at Visit 5
Timeframe: Baseline (Visit 2, Day 1 of Titration Period) and Visit 5 (Week 4, Day 6 of Treatment Period)
2
Percent Change From Baseline in Time to Absence Seizure During Hyperventilation Testing on Video-EEG at Visit 5
Timeframe: Baseline (Visit 2, Day 1 of Titration Period) and Visit 5 (Week 4, Day 6 of Treatment Period)
3
Number of Participants Seizure-Free at Visit 5
Timeframe: Visit 5 (Week 4, Day 6 of Treatment Period)
4
Clinical Global Impression of Improvement (CGI-I) Score at Visit 5
Timeframe: Visit 5 (Week 4, Day 6 of Treatment Period)
✓. In the opinion of the investigator, the parent(s)/caregiver(s) is willing and able to comply with the study procedures and visit schedules and the Follow-up Visits.
Exclusion criteria
✕. Patient or parent(s)/caregiver(s) have daily commitments during the study duration that would interfere with attending all study visits.
✕. Has a history of nonfebrile seizures other than absence seizures.
✕. Has a history of febrile seizures after 3 years of age.
✕. Has a history consistent with juvenile absence epilepsy or juvenile myoclonic epilepsy.
✕. Currently taking felbamate.
✕. Currently taking phenytoin, fluvoxamine, carbamazepine, or St. John's Wort.
✕. Currently taking concomitant medications that are strong inhibitors/inducers/sensitive substrates with a narrow therapeutic index for cytochrome P450 3A4 (CYP3A4), CYP2C9, or CYP2C19. (Stable doses of Valproic Acid during the screening, titration, treatment, and follow-up periods are permitted).