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Trial · NCT03597503

Treatment of Impulsive Aggression (IA) in Adolescent With ADHD in Conjunction With Standard ADHD Treatment

NCT03597503, Phase 3, Terminated, Supernus Pharmaceuticals, Inc.; results first posted 2024-02-20

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Treatment of Impulsive Aggression (IA) in Adolescent With ADHD in Conjunction With Standard ADHD Treatment. Trials, record NCT03597503. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03597503

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Trial

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

Title
Treatment of Impulsive Aggression (IA) in Adolescent With ADHD in Conjunction With Standard ADHD Treatment
NCT number
NCT03597503
Status
Terminated
Phases
Phase 3
Enrollment
41 participants, actual
Lead sponsor
Supernus Pharmaceuticals, Inc.
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
SPN-810, Placebo
First posted
2018-07-24
Last updated
2024-04-24
Results first posted
2024-02-20

Source ClinicalTrials.gov

Registered outcomes4

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

ListOutcomeTime frameDescription
PrimaryEffect of SPN-810 Treatment on the Frequency of Impulsive Aggression (IA) Behaviors Measured by the Impulsive Aggression DiaryDaily measure from Visit 2 (Day -15) to Visit 7 (Day 36) for a total of 7 weeks
The primary efficacy endpoint was percent change (PCHT) in the frequency (unweighted score) of IA behaviors per 7 days in the treatment (titration and maintenance) period relative to the baseline period calculated over the number of days with non-missing IA diary data. PCHT was then calculated as 100 x (T - B)/B, where T and B are IA behavior frequencies per 7 days during the treatment period (from Day 2 through Visit 7, inclusive) and baseline period (Day ≤1), respectively. The IA behavior frequency per 7 days is defined as (SUM/DAY) x 7, where SUM is the total of the IA behaviors reported in the subject IA diary, and DAY is the number of days with a non-missing IA score in the subject IA diary during the specified study period.
SecondaryEffect of SPN-810 on Impulsive Aggression (IA) Measured by Clinical Global Impression - Severity Scale (CGI-S)From Baseline/Visit 3 (Day 1) to Visit 4 (Day 15), Visit 5 (Day 22), Visit 6 (Day 29), Visit 7 (Day 36)
The Clinical Global Impression - Severity of Illness (CGI-S) is a single item clinician rating of clinician's assessment of the severity of IA behaviors. CGI-S was evaluated by the Investigator at each visit on a 7- point scale with 1=Normal, 2=Borderline ill, 3=Mildly ill, 4=Moderately ill, 5=Markedly ill, 6=Severely ill, and 7=Extremely ill. Data represent the change between Baseline (Visit 3/Day 1) and four time points: Visit 4 (Day 15); Visit 5 (Day 22), Visit 6 (Day 29) and Visit 7 (Day 36).
SecondaryEffect of SPN810 on Retrospective-Modified Overt Aggression Scale (R-MOAS) Total ScoreFrom Baseline/Visit 3 (Day 1) to Visit 4 (Day 15), Visit 5 (Day 22), Visit 6 (Day 29) and Visit 7 (Day 36).
R-MOAS scale gauges the severity of aggressive behavior: the frequency of the 16 behaviors is rated over the past week in 4 areas (VE, PH, PR, SE). For each open question in each area, the parent-rated the aggressive behaviors on a scale from 0 to 5 or more times. To each area corresponds a weighted category: Verbal Incidents (VE)=1, Incidents Toward Other (PH)=4, Incidents Involving Property (PR)=2 and Incidents Directed Toward Self (SE)=3. Therefore, the sum of each area yields a maximum weighted score of 20 (VE), 120 (PH), 60 (PR), and 90 (SE). The total score is the sum of the four area scores or 0-290; the higher the score, the more severe the aggressive behavior is. Data represent the total score change between the Baseline (Visit 3/Day 1) and four time points: Visit 4 (Day 15); Visit 5 (Day 22), Visit 6 (Day 29), and Visit 7 (Day 36).
SecondaryEffect of SPN-810 on Retrospective-Modified Overt Aggression Scale (R-MOAS) Remission RateVisit 4 (Day 15), Visit 5 (Day 22), Visit 6 (Day 29) and Visit 7 (Day 36)
The treatment effect on the R-MOAS was assessed to capture the severity of the aggressive behaviors. The remission rate was defined as percentage of subjects with a R-MOAS total score ≤ 10. Data represent the percentage of subjects at four time points during the treatment period: Visit 4 (Day 15); Visit 5 (Day 22), Visit 6 (Day 29) and Visit 7 (Day 36).

Outcomes4

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYEffect of SPN-810 Treatment on the Frequency of Impulsive Aggression (IA) Behaviors Measured by the Impulsive Aggression DiaryDaily measure from Visit 2 (Day -15) to Visit 7 (Day 36) for a total of 7 weeksSafety Population: safety population is defined as all subjects who received at least 1 dose of study drug and had at least one post-baseline safety assessment.percent change in IA behaviorsMEAN
SECONDARYEffect of SPN-810 on Impulsive Aggression (IA) Measured by Clinical Global Impression - Severity Scale (CGI-S)From Baseline/Visit 3 (Day 1) to Visit 4 (Day 15), Visit 5 (Day 22), Visit 6 (Day 29), Visit 7 (Day 36)Safety Population: safety population is defined as all subjects who received at least 1 dose of study drug and had at least one post-baseline safety assessment.score on a scaleMEAN
SECONDARYEffect of SPN810 on Retrospective-Modified Overt Aggression Scale (R-MOAS) Total ScoreFrom Baseline/Visit 3 (Day 1) to Visit 4 (Day 15), Visit 5 (Day 22), Visit 6 (Day 29) and Visit 7 (Day 36).Safety Population: safety population is defined as all subjects who received at least 1 dose of study drug and had at least one post-baseline safety assessment.units on a scaleMEAN
SECONDARYEffect of SPN-810 on Retrospective-Modified Overt Aggression Scale (R-MOAS) Remission RateVisit 4 (Day 15), Visit 5 (Day 22), Visit 6 (Day 29) and Visit 7 (Day 36)Safety Population: safety population is defined as all subjects who received at least 1 dose of study drug and had at least one post-baseline safety assessment.percentage of participantsNUMBER

Results by group58

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

OutcomeGroupCategoryValueSpreadUnits
Effect of SPN-810 Treatment on the Frequency of Impulsive Aggression (IA) Behaviors Measured by the Impulsive Aggression DiaryPlacebo-31.73Standard Deviation 25.510percent change in IA behaviors
Effect of SPN-810 Treatment on the Frequency of Impulsive Aggression (IA) Behaviors Measured by the Impulsive Aggression DiaryFlexible Dose of SPN-810-35.66Standard Deviation 77.422percent change in IA behaviors
Effect of SPN-810 on Impulsive Aggression (IA) Measured by Clinical Global Impression - Severity Scale (CGI-S)PlaceboVisit 4-0.5Standard Deviation 0.77score on a scale
Effect of SPN-810 on Impulsive Aggression (IA) Measured by Clinical Global Impression - Severity Scale (CGI-S)Flexible Dose of SPN-810Visit 4-0.6Standard Deviation 0.69score on a scale
Effect of SPN-810 on Impulsive Aggression (IA) Measured by Clinical Global Impression - Severity Scale (CGI-S)PlaceboVisit 5-0.7Standard Deviation 0.73score on a scale
Effect of SPN-810 on Impulsive Aggression (IA) Measured by Clinical Global Impression - Severity Scale (CGI-S)Flexible Dose of SPN-810Visit 5-1.1Standard Deviation 0.94score on a scale
Effect of SPN-810 on Impulsive Aggression (IA) Measured by Clinical Global Impression - Severity Scale (CGI-S)PlaceboVisit 6-1.1Standard Deviation 0.96score on a scale
Effect of SPN-810 on Impulsive Aggression (IA) Measured by Clinical Global Impression - Severity Scale (CGI-S)Flexible Dose of SPN-810Visit 6-1.2Standard Deviation 0.90score on a scale
Effect of SPN-810 on Impulsive Aggression (IA) Measured by Clinical Global Impression - Severity Scale (CGI-S)PlaceboVisit 7-1.3Standard Deviation 1.03score on a scale
Effect of SPN-810 on Impulsive Aggression (IA) Measured by Clinical Global Impression - Severity Scale (CGI-S)Flexible Dose of SPN-810Visit 7-1.4Standard Deviation 1.00score on a scale

Participant flow8

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDPlacebo20
Overall StudySTARTEDFlexible Dose of SPN-81021
Overall StudyTreatedPlacebo20
Overall StudyTreatedFlexible Dose of SPN-81021
Overall StudyCOMPLETEDPlacebo18
Overall StudyCOMPLETEDFlexible Dose of SPN-81017
Overall StudyNOT COMPLETEDPlacebo2
Overall StudyNOT COMPLETEDFlexible Dose of SPN-8104

Adverse events24

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherHeadacheNervous system disordersPlacebo220
otherHeadacheNervous system disordersFlexible Dose of SPN-810221
otherSomnolenceNervous system disordersPlacebo220
otherSomnolenceNervous system disordersFlexible Dose of SPN-810021
otherDystoniaNervous system disordersPlacebo120
otherDystoniaNervous system disordersFlexible Dose of SPN-810021
otherLethargyNervous system disordersPlacebo120
otherLethargyNervous system disordersFlexible Dose of SPN-810021
otherParkinsonismNervous system disordersPlacebo120
otherParkinsonismNervous system disordersFlexible Dose of SPN-810021

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityPlacebo020
Total, all-cause mortalityFlexible Dose of SPN-810021
Total, other adverse eventsPlacebo820
Total, other adverse eventsFlexible Dose of SPN-810421
Total, serious adverse eventsPlacebo020
Total, serious adverse eventsFlexible Dose of SPN-810021

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
Flexible Dose of SPN-810 vs Placebo: deaths from any causeTrial comparisons
Flexible Dose of SPN-810 vs Placebo: 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/NCT03597503

GET https://conductscience.org/api/trials/v1/NCT03597503/results?page=2