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Trial · NCT01347762

Nabilone for Cannabis Dependence: A Pilot Study

NCT01347762, Phase 2, Phase 3, Completed, Mclean Hospital; results first posted 2018-06-01

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Nabilone for Cannabis Dependence: A Pilot Study. Trials, record NCT01347762. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT01347762

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Trial

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

Title
Nabilone for Cannabis Dependence: A Pilot Study
NCT number
NCT01347762
Status
Completed
Phases
Phase 2, Phase 3
Enrollment
84 participants, actual
Lead sponsor
Mclean Hospital
Conditions
Cannabis Dependence, Marijuana Dependence
Interventions
Nabilone, Placebo
First posted
2011-05-04
Last updated
2018-06-01
Results first posted
2018-06-01

Source ClinicalTrials.gov

Registered outcomes5

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

ListOutcomeTime frameDescription
PrimaryChange From Baseline in Cannabis Use at 10 Weeksbaseline and 10 weeksQuantitative cannabis urine screens (THC-COOH:Creatinine ratio)
PrimaryNumber of Marijuana Inhales Per DayWeek 10Average # of marijuana inhales per day during baseline compared to after 10 weeks of treatment.
SecondaryChange From Baseline Neuropsychological Performance at 4 Weeksbaseline and 4 weeksperformance on neuropsychological tests administered inside of the fMRI scanner and outside of the fMRI scanner
SecondaryChange From Baseline Cannabis Use at 14 Weeksbaseline and 14 weeksquantitative urine screens - Comparing the THC-COOH to creatinine ratio at baseline and at the end of the study (Week 14)
SecondaryChange From Baseline in Neuropsychological Performance at 10 Weeksbaseline and 10 weeksperformance on neuropsychological tests administered inside of the fMRI scanner and outside of the fMRI scanner

Outcomes5

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYChange From Baseline in Cannabis Use at 10 Weeksbaseline and 10 weeks
Fewer participants had their THC:creatinine ratios analyzed than were randomized due to a high number of subject drop-out. Any subject who dropped out before completing the 10 weeks of treatment were not analyzed using this measure.
RatioMEAN
PRIMARYNumber of Marijuana Inhales Per DayWeek 10
Fewer participants had their average number of inhales per day analyzed than were randomized due to a high number of subject drop-out. Any subject who dropped out before completing the 10 weeks of treatment were not analyzed using this measure.
Inhales per dayMEAN
SECONDARYChange From Baseline Neuropsychological Performance at 4 Weeksbaseline and 4 weeksDue to funding and the principal investigator's change in institutions, this data was not analyzed and is no longer available to the investigator.
SECONDARYChange From Baseline Cannabis Use at 14 Weeksbaseline and 14 weeks
Fewer participants had their THC:creatinine ratios analyzed than were randomized due to a high number of subject drop-out. Any subject who dropped out before completing the 10 weeks of treatment were not analyzed using this measure.
RatioMEAN
SECONDARYChange From Baseline in Neuropsychological Performance at 10 Weeksbaseline and 10 weeksDue to funding and the principal investigator's change in institutions, this data was not analyzed and is no longer available to the investigator.

Results by group12

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

OutcomeGroupCategoryValueSpreadUnits
Change From Baseline in Cannabis Use at 10 WeeksNabilone Titrated 2 mg Daily (Phase 1)268.8Standard Deviation 183.0Ratio
Change From Baseline in Cannabis Use at 10 WeeksPlacebo (Phase 1)286.7Standard Deviation 349.7Ratio
Change From Baseline in Cannabis Use at 10 WeeksNabilone Titrated to 4 mg Daily (Phase 2)490.3Standard Deviation 615.0Ratio
Change From Baseline in Cannabis Use at 10 WeeksPlacebo (Phase 2)216.9Standard Deviation 188.5Ratio
Number of Marijuana Inhales Per DayNabilone Titrated 2 mg Daily (Phase 1)33.8Standard Deviation 31.0Inhales per day
Number of Marijuana Inhales Per DayPlacebo (Phase 1)22.6Standard Deviation 30.6Inhales per day
Number of Marijuana Inhales Per DayNabilone Titrated to 4 mg Daily (Phase 2)15.8Standard Deviation 35.6Inhales per day
Number of Marijuana Inhales Per DayPlacebo (Phase 2)10.6Standard Deviation 14.6Inhales per day
Change From Baseline Cannabis Use at 14 WeeksNabilone Titrated 2 mg Daily (Phase 1)524.2Standard Deviation 466.2Ratio
Change From Baseline Cannabis Use at 14 WeeksPlacebo (Phase 1)326.7Standard Deviation 403.7Ratio

Participant flow12

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDNabilone Titrated 2 mg Daily (Phase 1)10
Overall StudySTARTEDPlacebo (Phase 1)8
Overall StudySTARTEDNabilone Titrated to 4 mg Daily (Phase 2)16
Overall StudySTARTEDPlacebo (Phase 2)18
Overall StudyCOMPLETEDNabilone Titrated 2 mg Daily (Phase 1)6
Overall StudyCOMPLETEDPlacebo (Phase 1)6
Overall StudyCOMPLETEDNabilone Titrated to 4 mg Daily (Phase 2)7
Overall StudyCOMPLETEDPlacebo (Phase 2)10
Overall StudyNOT COMPLETEDNabilone Titrated 2 mg Daily (Phase 1)4
Overall StudyNOT COMPLETEDPlacebo (Phase 1)2

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 totals12

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityNabilone Titrated 2 mg Daily (Phase 1)010
Total, all-cause mortalityPlacebo (Phase 1)08
Total, all-cause mortalityNabilone Titrated to 4 mg Daily (Phase 2)016
Total, all-cause mortalityPlacebo (Phase 2)018
Total, other adverse eventsNabilone Titrated 2 mg Daily (Phase 1)010
Total, other adverse eventsPlacebo (Phase 1)08
Total, other adverse eventsNabilone Titrated to 4 mg Daily (Phase 2)016
Total, other adverse eventsPlacebo (Phase 2)018
Total, serious adverse eventsNabilone Titrated 2 mg Daily (Phase 1)010
Total, serious adverse eventsPlacebo (Phase 1)08

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

Grants1

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.

ProjectTitlePrincipal investigatorsOrganizationFunderFiscal years
K99DA029115Nabilone for Cannabis Dependence: Imaging and Neuropsychological PerformanceHILL, KEVIN P.MCLEAN HOSPITALNATIONAL INSTITUTE ON DRUG ABUSE2011 to 2012

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/NCT01347762

GET https://conductscience.org/api/trials/v1/NCT01347762/registered