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Trial ยท NCT03664232

A Study to Investigate the Efficacy, Safety, and Tolerability of JNJ-42165279 in Adolescent and Adult Participants With Autism Spectrum Disorder

NCT03664232, Phase 2, Completed, Janssen Research & Development, LLC; results first posted 2025-04-23

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. A Study to Investigate the Efficacy, Safety, and Tolerability of JNJ-42165279 in Adolescent and Adult Participants With Autism Spectrum Disorder. Trials, record NCT03664232. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT03664232

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Trial

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

Title
A Study to Investigate the Efficacy, Safety, and Tolerability of JNJ-42165279 in Adolescent and Adult Participants With Autism Spectrum Disorder
NCT number
NCT03664232
Status
Completed
Phases
Phase 2
Enrollment
78 participants, actual
Lead sponsor
Janssen Research & Development, LLC
Conditions
Autism Spectrum Disorder
Interventions
JNJ-42165279, Placebo
First posted
2018-09-10
Last updated
2025-04-23
Results first posted
2025-04-23

Source ClinicalTrials.gov

Registered outcomes20

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

ListOutcomeTime frameDescription
PrimaryChange From Baseline to Day 85 in the Autism Behavior Inventory (ABI) Core Domain Score (Social Communication and Restrictive Behaviour)Baseline (Day 1) to Day 85
ABI:62-item questionnaire to track outcomes in autism spectrum disorder (ASD). Each item was answered on 1 of 2 possible dimensions: quality (how well person carries out particular behavior; 1 to 13 items) or frequency (how often particular behavior occurs; 14 to 62 items). Each item was rated on scale of 0 (never) to 3 (very often) for frequency and 0 (without help) to 3 (not at all) for quality. Higher score=severe symptoms/more frequency. ABI core domain score was from 2 domains: social communication (23 items; 3 sub-domains) and repetitive/restrictive behavior (RRB;15 items; 4 sub-domains). Domain and sub-domain scores: calculated as average of non-missing items (ie, sum of all non-missing items divided by number of non-missing items); scores ranged from 0 to 3, higher scores=more severe symptoms of ASD. ABI core domain score=sum of social communication and RRB domain scores divided by total number of items in these 2 domains. Negative changes in ABI core domain score=improvement.
PrimaryChange From Baseline to Day 85 in the ABI Social Communication Domain ScoreBaseline (Day 1) to Day 85
ABI was 62-item questionnaire completed on a web/mobile application or on paper. It tracks outcomes in ASD. Each ABI item was answered on 1 of 2 possible dimensions, quality (how well a person carries out a particular behavior; 1 to 13 items) or frequency (how often a particular behavior occurs; 14 to 62 items). Each item was rated on scale of 0 (never) to 3 (very often) for frequency and 0 (without help) to 3 (not at all) for quality. Higher score indicated severe symptoms/more frequency. The ABI social communication domain score consisted of 23 items; with 3 sub-domains. The domain and sub-domain scores were calculated as the average of the non-missing items (ie, sum of all non-missing items divided by the number of non-missing items). For both domains and its sub-domains, scores ranged from 0 to 3 with higher scores indicating more severe symptoms of ASD. Negative change in score indicates improvement.
PrimaryChange From Baseline to Day 85 in the ABI Repetitive/Restrictive Behavior (RRB) Domain ScoreBaseline (Day 1) to Day 85
ABI is 62-item questionnaire completed on a web/mobile application or on paper. It tracks outcomes in ASD. Each ABI item was answered on 1 of 2 possible dimensions, quality (how well a person carries out a particular behavior; 1 to 13 items) or frequency (how often a particular behavior occurs; 14 to 62 items). Each item was rated on scale of 0 (never) to 3 (very often) for frequency and 0 (without help) to 3 (not at all) for quality. Higher score indicated severe symptoms/more frequency. The ABI RRB domain score consisted of 15 items; with 3 sub-domains. The domain and sub-domain scores were calculated as the average of the non-missing items (ie, sum of all non-missing items divided by the number of non-missing items). For both domains and its sub-domains, scores ranged from 0 to 3 with higher scores indicating more severe symptoms of ASD. Negative change in score indicates improvement.
PrimaryChange From Baseline to Day 85 in the Social Responsiveness Scale 2 (SRS-2) Total T-ScoreBaseline (Day 1) to Day 85
SRS-2: 65-item scale measured extent of autistic social impairment and included 5 subscales: social awareness, social cognition, social communication, social motivation, and restricted interests and repetitive behavior. Each of 65 items had 4 responses: not true, sometimes true, often true, and almost always true. Scoring value for each item was 0 to 3. If a response to an item was missing, then pre-defined median value for item (0 or 1) was imputed. SRS-2 was not scored if 7 or more item responses were missed. Total raw score was sum of item response values. Each subscale was obtained by adding response values and converted total raw score to standardized T-score based on gender and rater (parent or caregiver). Total T-score was categorized: within normal limits (\<=59), mild (60 to 65), moderate (66 to 75) and severe (\>=76). For total score T-score, higher scores=more severe symptoms. SRS T-score had mean of 50 and standard deviation of 10. Negative changes in T-scores=improvement.
SecondaryChange From Baseline to Day 85 in the ABI Mood and Anxiety Domain ScoreBaseline (Day 1) to Day 85
ABI was 62-item questionnaire to track outcomes in ASD. Each ABI item was answered on 1 of 2 possible dimensions, quality (how well a person carries out a particular behavior; 1 to 13 items) or frequency (how often a particular behavior occurs; 14 to 62 items). Each item was rated on scale of 0 (never) to 3 (very often) for frequency and 0 (without help) to 3 (not at all) for quality. Higher score indicated severe symptoms/more frequency. ABI mood and anxiety domain had 9 items with 5 sub-domains. ABI mood and anxiety domain and its sub-domains, scores ranged from 0 to 3 with higher scores indicating more severe symptoms of ASD. Domain and sub-domain scores were calculated as the average of the non-missing items (ie, sum of all non-missing items divided by the number of non-missing items). Negative changes in ABI mood and anxiety domain score indicated improvement.
SecondaryChange From Baseline to Day 85 in the ABI Challenging Behavior Domain ScoreBaseline (Day 1) to Day 85
ABI was 62-item questionnaire to track outcomes in ASD. Each ABI item was answered on 1 of 2 possible dimensions, quality (how well a person carries out a particular behavior; 1 to 13 items) or frequency (how often a particular behavior occurs; 14 to 62 items). Each item was rated on scale of 0 (never) to 3 (very often) for frequency and 0 (without help) to 3 (not at all) for quality. Higher score indicated severe symptoms/more frequency. ABI challenging behavior domain had 7 items with 4 sub-domains. ABI challenging behavior domain and its sub-domains, scores ranged from 0 to 3 with higher scores indicating more severe symptoms of ASD. The domain and sub-domain scores were calculated as the average of the non-missing items (ie, sum of all non-missing items divided by the number of non-missing items). Negative changes in ABI challenging behavior domain score indicated improvement.
SecondaryChange From Baseline to Day 85 in the ABI Self-Regulation Domain ScoreBaseline (Day 1) to Day 85
ABI was 62-item questionnaire to track outcomes in ASD. Each ABI item was answered on 1 of 2 possible dimensions, quality (how well a person carries out a particular behavior; 1 to 13 items) or frequency (how often a particular behavior occurs; 14 to 62 items). Each item was rated on scale of 0 (never) to 3 (very often) for frequency and 0 (without help) to 3 (not at all) for quality. Higher score indicated severe symptoms/more frequency. ABI self-regulation domain had 8 items with 2 sub-domains. ABI self-regulation domain and its sub-domains, scores ranged from 0 to 3 with higher scores indicating more severe symptoms of ASD. The domain and sub-domain scores were calculated as the average of the non-missing items (ie, sum of all non-missing items divided by the number of non-missing items). Negative changes in ABI self-regulation domain score indicated improvement.
SecondaryChange From Baseline to Day 85 in the Aberrant Behavior Checklist (ABC) Subscales ScoresBaseline (Day 1) to Day 85
The ABC was 58-item behavior rating scale used to measure behavior problems across 5 subscales: irritability (15 items), lethargy (social withdrawal; 16 items), stereotypic behavior (7 items), hyperactivity/ noncompliance (16 items), and inappropriate speech (4 items). Items were rated on a 4-point scale score ranging from 0 (not at all a problem) to 3 (the problem is severe in degree). The total subscale scores ranged from 0 to 45, 0 to 48, 0 to 21, 0 to 48 and 0 to 12 for irritability, lethargy (social withdrawal), stereotypic behavior, hyperactivity, and inappropriate speech respectively. The higher scores indicating more severe behavior problems. Negative change in score indicated improvement.
SecondaryChange From Baseline to Day 71 in the Autism Behavior Inventory-Short Form (ABI-S) Domains ScoresBaseline (Day 1) to Day 71
The ABI-S was the shorter version of ABI. It consists of 24 items across 5 areas: challenging behavior (3 items), mood and anxiety (5 items), restrictive behaviors (7 items), social communication (6 items), and self-regulation (3 items). Each item was answered on 1 of 2 possible dimensions, quality (how well a person carries out a particular behavior or frequency (how often a particular behavior occurs). Each ABI-S domain score was calculated as the sum of the scores in the ABI-S domain divided by the total number of items in this domain. Each item was rated on scales of 0 (never) to 3 (very often) for frequency and 0 (without help) to 3 (not at all) for quality. The total subscale scores ranged from 0 to 9, 0 to 15, 0 to 21, 0 to 18, and 0 to 9, for challenging behavior, mood and anxiety, restrictive behaviors, social communication, and self-regulation respectively. Lower score indicated better performance. Negative change in score indicates improvement.
SecondaryChange From Baseline to Day 85 in the Autism Behavior Inventory-Clinician Interview (ABI-C) Domains ScoresBaseline (Day 1) to Day 85
The ABI-C covers the domains of ABI and was intended for completion by the clinician following an interview with caregiver and observation or interview with the individual with ASD, as appropriate. The ABI-C was designed to capture the behaviors of a person with ASD that have occurred over the past week. There were 14 items across each of the 5 domains: challenging behavior (2 items), mood and anxiety (2 items), restrictive behaviors (5 items), social communication (3 items), and self-regulation (2 items). The clinician rates the severity of behaviors or level of impairment on a scale of 1 (no impairment) to 7 (very severe difficulties) with a higher score indicating more severe symptoms of ASD. Total subscale scores ranged from 0 to 14, 0 to 14, 0 to 35, 0 to 21 and 0 to 14, for challenging behavior, mood and anxiety, restrictive behaviors, social communication and self-regulation respectively. Lower score indicated better performance. Negative change in score indicates improvement.

Outcomes20

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYChange From Baseline to Day 85 in the Autism Behavior Inventory (ABI) Core Domain Score (Social Communication and Restrictive Behaviour)Baseline (Day 1) to Day 85
The full analysis set twice daily (FAS-BID) included all randomized participants who had received at least 1 dose of study agent at the BID dose and had both a baseline and at least 1 postbaseline efficacy assessment. Here, N (number of participants analyzed) signifies participants who were analyzed for this outcome measure. As per study statistical analysis plan (SAP), data for this outcome measure was planned to be collected and analyzed only on the participants who received BID dosing.
Score on a scaleMEAN
PRIMARYChange From Baseline to Day 85 in the ABI Social Communication Domain ScoreBaseline (Day 1) to Day 85
The FAS-BID included all randomized participants who had received at least 1 dose of study agent at the BID dose and had both a baseline and at least 1 postbaseline efficacy assessment. Here, N (number of participants analyzed) signifies participants who were analyzed for this outcome measure. As per study SAP, data for this outcome measure was planned to be collected and analyzed only on the participants who received BID dosing.
Score on a scaleMEAN
PRIMARYChange From Baseline to Day 85 in the ABI Repetitive/Restrictive Behavior (RRB) Domain ScoreBaseline (Day 1) to Day 85
The FAS-BID included all randomized participants who had received at least 1 dose of study agent at the BID dose and had both a baseline and at least 1 postbaseline efficacy assessment. Here, N (number of participants analyzed) signifies participants who were analyzed for this outcome measure. As per study SAP, data for this outcome measure was planned to be collected and analyzed only on the participants who received BID dosing.
Score on a scaleMEAN
SECONDARYChange From Baseline to Day 85 in the ABI Mood and Anxiety Domain ScoreBaseline (Day 1) to Day 85
The FAS analysis set included all randomized participants who had received at least 1 dose of study agent at either dose and had both a baseline and at least 1 postbaseline efficacy assessment. Here, N (number of participants analyzed) signifies participants who were analyzed for this outcome measure.
Score on a scaleMEAN
SECONDARYChange From Baseline to Day 85 in the ABI Challenging Behavior Domain ScoreBaseline (Day 1) to Day 85
The FAS analysis set included all randomized participants who had received at least 1 dose of study agent at either dose and had both a baseline and at least 1 postbaseline efficacy assessment. Here, N (number of participants analyzed) signifies participants who were analyzed for this outcome measure.
Score on a scaleMEAN
SECONDARYChange From Baseline to Day 85 in the ABI Self-Regulation Domain ScoreBaseline (Day 1) to Day 85
The FAS analysis set included all randomized participants who had received at least 1 dose of study agent at either dose and had both a baseline and at least 1 postbaseline efficacy assessment. Here, N (number of participants analyzed) signifies participants who were analyzed for this outcome measure.
Score on a scaleMEAN
SECONDARYChange From Baseline to Day 85 in the Aberrant Behavior Checklist (ABC) Subscales ScoresBaseline (Day 1) to Day 85
The FAS analysis set included all randomized participants who had received at least 1 dose of study agent at either dose and had both a baseline and at least 1 postbaseline efficacy assessment. Here, N (number of participants analyzed) signifies participants who were analyzed for this outcome measure.
Score on a scaleMEAN
SECONDARYChange From Baseline to Day 71 in the Autism Behavior Inventory-Short Form (ABI-S) Domains ScoresBaseline (Day 1) to Day 71
The FAS analysis set included all randomized participants who had received at least 1 dose of study agent at either dose and had both a baseline and at least 1 postbaseline efficacy assessment. Here, N (number of participants analyzed) signifies participants who were analyzed for this outcome measure.
Score on a scaleMEAN
SECONDARYChange From Baseline to Day 85 in the Autism Behavior Inventory-Clinician Interview (ABI-C) Domains ScoresBaseline (Day 1) to Day 85
The FAS analysis set included all randomized participants who had received at least 1 dose of study agent at either dose and had both a baseline and at least 1 postbaseline efficacy assessment. Here, N (number of participants analyzed) signifies participants who were analyzed for this outcome measure.
Score on a scaleMEAN
SECONDARYChange From Baseline to Day 85 in the Clinical Global Impression-Severity (CGI-S) Scale ScoreBaseline (Day 1) to Day 85
The FAS-BID included all randomized participants who had received at least 1 dose of study agent at the BID dose and had both a baseline and at least 1 postbaseline efficacy assessment. Here, N (number of participants analyzed) signifies participants who were analyzed for this outcome measure. As per study SAP, data for this outcome measure was planned to be collected and analyzed only on the participants who received BID dosing.
Score on a scaleMEDIAN

Results by group268

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

OutcomeGroupCategoryValueSpreadUnits
Change From Baseline to Day 85 in the Autism Behavior Inventory (ABI) Core Domain Score (Social Communication and Restrictive Behaviour)Placebo BID-0.20Standard Deviation 0.400Score on a scale
Change From Baseline to Day 85 in the Autism Behavior Inventory (ABI) Core Domain Score (Social Communication and Restrictive Behaviour)JNJ-42165279 25 mg BID-0.26Standard Deviation 0.274Score on a scale
Change From Baseline to Day 85 in the ABI Social Communication Domain ScorePlacebo BID-0.22Standard Deviation 0.379Score on a scale
Change From Baseline to Day 85 in the ABI Social Communication Domain ScoreJNJ-42165279 25 mg BID-0.27Standard Deviation 0.332Score on a scale
Change From Baseline to Day 85 in the ABI Repetitive/Restrictive Behavior (RRB) Domain ScorePlacebo BID-0.17Standard Deviation 0.525Score on a scale
Change From Baseline to Day 85 in the ABI Repetitive/Restrictive Behavior (RRB) Domain ScoreJNJ-42165279 25 mg BID-0.23Standard Deviation 0.299Score on a scale
Change From Baseline to Day 85 in the ABI Mood and Anxiety Domain ScorePlacebo QD-0.30Standard Deviation 0.408Score on a scale
Change From Baseline to Day 85 in the ABI Mood and Anxiety Domain ScorePlacebo BID-0.23Standard Deviation 0.622Score on a scale
Change From Baseline to Day 85 in the ABI Mood and Anxiety Domain ScoreJNJ-42165279 25 mg QD-0.19Standard Deviation 0.551Score on a scale
Change From Baseline to Day 85 in the ABI Mood and Anxiety Domain ScoreJNJ-42165279 25 mg BID-0.26Standard Deviation 0.552Score on a scale

Participant flow16

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDPlacebo QD7
Overall StudySTARTEDPlacebo BID31
Overall StudySTARTEDJNJ-42165279 25 mg QD8
Overall StudySTARTEDJNJ-42165279 25 mg BID32
Overall StudyTreatedPlacebo QD7
Overall StudyTreatedPlacebo BID30
Overall StudyTreatedJNJ-42165279 25 mg QD8
Overall StudyTreatedJNJ-42165279 25 mg BID32
Overall StudyCOMPLETEDPlacebo QD7
Overall StudyCOMPLETEDPlacebo BID26

Adverse events72

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherEarly Repolarisation SyndromeCardiac disordersPlacebo QD17
otherEarly Repolarisation SyndromeCardiac disordersPlacebo BID030
otherEarly Repolarisation SyndromeCardiac disordersJNJ-42165279 25 mg QD08
otherEarly Repolarisation SyndromeCardiac disordersJNJ-42165279 25 mg BID032
otherMotion SicknessEar and labyrinth disordersPlacebo QD07
otherMotion SicknessEar and labyrinth disordersPlacebo BID030
otherMotion SicknessEar and labyrinth disordersJNJ-42165279 25 mg QD18
otherMotion SicknessEar and labyrinth disordersJNJ-42165279 25 mg BID032
otherAbdominal DiscomfortGastrointestinal disordersPlacebo QD07
otherAbdominal DiscomfortGastrointestinal disordersPlacebo BID030

Adverse event totals12

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityPlacebo QD07
Total, all-cause mortalityPlacebo BID031
Total, all-cause mortalityJNJ-42165279 25 mg QD08
Total, all-cause mortalityJNJ-42165279 25 mg BID032
Total, other adverse eventsPlacebo QD57
Total, other adverse eventsPlacebo BID730
Total, other adverse eventsJNJ-42165279 25 mg QD78
Total, other adverse eventsJNJ-42165279 25 mg BID332
Total, serious adverse eventsPlacebo QD07
Total, serious adverse eventsPlacebo BID030

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 comparisons0

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

None in this release.

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/NCT03664232

GET https://conductscience.org/api/trials/v1/NCT03664232/results?page=2