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Trial · NCT03355300

Long-Term Safety of Pharmaceutical Grade Synthetic Cannabidiol Oral Solution in Pediatric Participants With Treatment-Resistant Childhood Absence Seizures

NCT03355300, Phase 2, Terminated, Radius Pharmaceuticals, Inc.; results first posted 2023-06-18

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Long-Term Safety of Pharmaceutical Grade Synthetic Cannabidiol Oral Solution in Pediatric Participants With Treatment-Resistant Childhood Absence Seizures. Trials, record NCT03355300. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03355300

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Long-Term Safety of Pharmaceutical Grade Synthetic Cannabidiol Oral Solution in Pediatric Participants With Treatment-Resistant Childhood Absence Seizures
NCT number
NCT03355300
Status
Terminated
Phases
Phase 2
Enrollment
11 participants, actual
Lead sponsor
Radius Pharmaceuticals, Inc.
Conditions
Childhood Absence Epilepsy
Interventions
Cannabidiol Oral Solution
First posted
2017-11-28
Last updated
2023-06-18
Results first posted
2023-06-18
Limitations and caveats
This study was prematurely terminated by the Sponsor. Participants ongoing at the time of discontinuation of the study are neither considered completed or discontinued.

Source ClinicalTrials.gov

Registered outcomes1

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryNumber of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Baseline (Visit 6 of INS011-17-103) and Visit 10 (up to approximately 54 weeks)
An AE is defined as any untoward medical occurrence in a participant administered a pharmaceutical product during the course of a clinical investigation. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of an investigational product, whether or not thought to be related to the investigational product. An SAE is any untoward medical occurrence that results in death, is life-threatening, requires the participant be at a risk of death at the time of the event, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, is a congenital abnormality/birth defect, or other serious event that requires medical or surgical intervention. A summary of SAEs and all other non-serious AEs, regardless of causality, is located in the Reported AEs module.

Outcomes1

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYNumber of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Baseline (Visit 6 of INS011-17-103) and Visit 10 (up to approximately 54 weeks)All participants who were enrolled and received at least 1 dose of study drug.participantsNUMBER

Results by group4

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Canabidiol Oral Solution 20 to <30 mg/kg/DayNumber of participants with AEs5participants
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Canabidiol Oral Solution 30 to <40 mg/kg/DayNumber of participants with AEs4participants
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Canabidiol Oral Solution 20 to <30 mg/kg/DayNumber of participants with SAEs0participants
Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Canabidiol Oral Solution 30 to <40 mg/kg/DayNumber of participants with SAEs0participants

Participant flow6

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDCanabidiol Oral Solution 20 to <30 mg/kg/Day5
Overall StudySTARTEDCanabidiol Oral Solution 30 to <40 mg/kg/Day6
Overall StudyCOMPLETEDCanabidiol Oral Solution 20 to <30 mg/kg/Day2
Overall StudyCOMPLETEDCanabidiol Oral Solution 30 to <40 mg/kg/Day4
Overall StudyNOT COMPLETEDCanabidiol Oral Solution 20 to <30 mg/kg/Day3
Overall StudyNOT COMPLETEDCanabidiol Oral Solution 30 to <40 mg/kg/Day2

Adverse events22

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherVomitingGastrointestinal disordersCanabidiol Oral Solution 20 to <30 mg/kg/Day05
otherVomitingGastrointestinal disordersCanabidiol Oral Solution 30 to <40 mg/kg/Day16
otherFatigueGeneral disordersCanabidiol Oral Solution 20 to <30 mg/kg/Day05
otherFatigueGeneral disordersCanabidiol Oral Solution 30 to <40 mg/kg/Day16
otherPyrexiaGeneral disordersCanabidiol Oral Solution 20 to <30 mg/kg/Day15
otherPyrexiaGeneral disordersCanabidiol Oral Solution 30 to <40 mg/kg/Day06
otherSeasonal allergyImmune system disordersCanabidiol Oral Solution 20 to <30 mg/kg/Day15
otherSeasonal allergyImmune system disordersCanabidiol Oral Solution 30 to <40 mg/kg/Day06
otherPharyngitis streptococcalInfections and infestationsCanabidiol Oral Solution 20 to <30 mg/kg/Day05
otherPharyngitis streptococcalInfections and infestationsCanabidiol Oral Solution 30 to <40 mg/kg/Day16

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityCanabidiol Oral Solution 20 to <30 mg/kg/Day05
Total, all-cause mortalityCanabidiol Oral Solution 30 to <40 mg/kg/Day06
Total, other adverse eventsCanabidiol Oral Solution 20 to <30 mg/kg/Day45
Total, other adverse eventsCanabidiol Oral Solution 30 to <40 mg/kg/Day46
Total, serious adverse eventsCanabidiol Oral Solution 20 to <30 mg/kg/Day05
Total, serious adverse eventsCanabidiol Oral Solution 30 to <40 mg/kg/Day06

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons2

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
Canabidiol Oral Solution 20 to <30 mg/kg/Day vs Canabidiol Oral Solution 30 to <40 mg/kg/Day: deaths from any causeTrial comparisons
Canabidiol Oral Solution 20 to <30 mg/kg/Day vs Canabidiol Oral Solution 30 to <40 mg/kg/Day: serious adverse eventsTrial comparisons

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT03355300

GET https://conductscience.org/api/trials/v1/NCT03355300/events?page=2