Trial · NCT02902081

Cannabidiol and Emotional Stimuli

NCT02902081, Not applicable, Completed, University of Chicago; results first posted 2019-08-28

3 sourcestrials-2026-11-12-0.5.0

Cite this record

ConductScience Library. Cannabidiol and Emotional Stimuli. Trials, record NCT02902081. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT02902081

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Trial

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

Title: Cannabidiol and Emotional Stimuli
NCT number: NCT02902081
Status: Completed
Phases: Not applicable
Enrollment: 38 participants, actual
Lead sponsor: University of Chicago
Conditions: Drug Addiction
Interventions: Cannabidiol, Placebo
First posted: 2016-09-15
Last updated: 2019-08-28
Results first posted: 2019-08-28

Source ClinicalTrials.gov

Registered outcomes1

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

List	Outcome	Time frame	Description
Primary	Positivity Ratings of Social Images	End of study (time 0 and approximately 4 weeks later), week 4 reported.	Using the International Affective Picture System (IAPS; Lang et al. 1999), participants viewed standardized positive, negative and neutral pictures from the IAPS. The negative and positive images were matched on degree of valence and arousal. An Evaluative Space Grid rating followed each picture to collect subjective reactions. Ratings are on a 9-pt scale. The range of the scale is from 1 to 9 (Min score 1, max score 9). The total score is reported. Higher numbers represent more positive valence or greater arousal. Drug treatment: within-subjects; every participant received all drug doses, counter-balanced.

Source ClinicalTrials.gov

Outcomes1

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

Type	Outcome	Time frame	Population	Units	Measured as
PRIMARY	Positivity Ratings of Social Images	End of study (time 0 and approximately 4 weeks later), week 4 reported.		score on a scale	MEAN

Source ClinicalTrials.gov

Results by group12

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

Outcome	Group	Category	Value	Spread	Units
Positivity Ratings of Social Images	Placebo	Positive Image	1.96	Standard Error 0.11	score on a scale
Positivity Ratings of Social Images	300 mg Cannabidiol	Positive Image	1.68	Standard Error 0.13	score on a scale
Positivity Ratings of Social Images	600 mg Cannabidiol	Positive Image	1.86	Standard Error 0.10	score on a scale
Positivity Ratings of Social Images	900 mg Cannabidiol	Positive Image	1.93	Standard Error 0.11	score on a scale
Positivity Ratings of Social Images	Placebo	Negative Image	0.47	Standard Error 0.07	score on a scale
Positivity Ratings of Social Images	300 mg Cannabidiol	Negative Image	0.48	Standard Error 0.08	score on a scale
Positivity Ratings of Social Images	600 mg Cannabidiol	Negative Image	0.41	Standard Error 0.06	score on a scale
Positivity Ratings of Social Images	900 mg Cannabidiol	Negative Image	0.35	Standard Error 0.06	score on a scale
Positivity Ratings of Social Images	Placebo	Neutral Image	1.12	Standard Error 0.10	score on a scale
Positivity Ratings of Social Images	300 mg Cannabidiol	Neutral Image	0.99	Standard Error 0.10	score on a scale

1 to 10 of 12Source ClinicalTrials.gov

See all 12 results by group

Participant flow3

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

Period	Milestone	Group	Participants
Overall Study	STARTED	ALL Study Participants	38
Overall Study	COMPLETED	ALL Study Participants	38
Overall Study	NOT COMPLETED	ALL Study Participants	0

Source ClinicalTrials.gov

Adverse events0

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

None in this release.

Adverse event totals6

The totals the trial posted for each group.

Total	Group	At risk
Total, all-cause mortality	Placebo	38
Total, all-cause mortality	Cannabidiol	38
Total, other adverse events	Placebo	38
Total, other adverse events	Cannabidiol	38
Total, serious adverse events	Placebo	38
Total, serious adverse events	Cannabidiol	38

Source ClinicalTrials.gov

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.

Comparison	Source
Cannabidiol vs Placebo: deaths from any cause	Trial comparisons
Cannabidiol vs Placebo: serious adverse events	Trial 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/NCT02902081

GET https://conductscience.org/api/trials/v1/NCT02902081/registered

API reference For AI assistants