NCT03251326

Brief Summary

Despite the prevalence of cannabis use among the PTSD population and self-reports that it is used to help cope with PTSD symptoms, the direct effects of cannabis on PTSD symptomology are unknown. The purpose of this placebo-controlled, within-subject study is to assess the effects of smoked cannabis and orally administered nabilone, a synthetic analog of THC, the primary psychoactive component of cannabis on multiple dimensions of PTSD symptomatology in cannabis smokers with PTSD.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
4

participants targeted

Target at below P25 for phase_1

Timeline
Completed

Started Oct 2015

Typical duration for phase_1

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2015

Completed
1.9 years until next milestone

First Submitted

Initial submission to the registry

August 14, 2017

Completed
2 days until next milestone

First Posted

Study publicly available on registry

August 16, 2017

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2019

Completed
1.4 years until next milestone

Results Posted

Study results publicly available

October 12, 2020

Completed
Last Updated

July 15, 2022

Status Verified

June 1, 2022

Enrollment Period

3.7 years

First QC Date

August 14, 2017

Results QC Date

August 18, 2020

Last Update Submit

June 29, 2022

Conditions

Outcome Measures

Primary Outcomes (1)

  • Cue Reactivity (Emotional Stroop Task)

    We cannot provide data as the study was terminated due to lack of feasibility. The staff responsible for data collection, organization, and cleaning have left the institution; we have made every effort to locate the data for the two participants who completed the study, but have been unsuccessful. We do not have access to the data.

    1 month

Study Arms (4)

Nabilone

EXPERIMENTAL

Nabilone capsules (4 mg)

Drug: Nabilone

Propranolol

ACTIVE COMPARATOR

Propranolol capsules (40mg)

Drug: Propranolol

Smoked cannabis

EXPERIMENTAL

(0.0 and 5.6% THC)

Drug: Cannabis

Placebo

PLACEBO COMPARATOR

Placebo capsules

Drug: Placebo

Interventions

Nabilone capsules (4 mg)

Nabilone

Cigarettes (0.0 and 5.6% THC)

Smoked cannabis

Propranolol capsules (40mg)

Propranolol

Placebo capsules

Placebo

Eligibility Criteria

Age21 Years - 45 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Current cannabis use
  • PTSD symptoms
  • Able to give informed consent and comply with study procedures
  • Women who are normally cycling and practicing an effective form of birth control other than hormonal contraceptives

You may not qualify if:

  • Meeting criteria for certain current psychiatric disorders
  • Clinical laboratory tests outside of normal limits
  • History of clinically significant cardiac or respiratory diagnoses
  • Current parole or probation
  • Women who are currently pregnant or breastfeeding

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

New York State Psychiatric Institute

New York, New York, 10032, United States

Location

MeSH Terms

Conditions

Marijuana AbuseStress Disorders, Post-Traumatic

Interventions

nabilonenabiximolsPropranolol

Condition Hierarchy (Ancestors)

Substance-Related DisordersChemically-Induced DisordersMental DisordersStress Disorders, TraumaticTrauma and Stressor Related Disorders

Intervention Hierarchy (Ancestors)

PhenoxypropanolaminesPropanolaminesAmino AlcoholsAlcoholsOrganic ChemicalsPropanolsAminesNaphthalenesPolycyclic Aromatic HydrocarbonsHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsPolycyclic Compounds

Results Point of Contact

Title
Margaret Haney, Ph.D.
Organization
New York State Psychiatric Institute

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Model Details: All patients will contribute to each of 4 drug conditions (placebo, nabilone, smoked cannabis, and propranolol).
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor of Neurobiology (in Psychiatry) at CUMC

Study Record Dates

First Submitted

August 14, 2017

First Posted

August 16, 2017

Study Start

October 1, 2015

Primary Completion

June 1, 2019

Study Completion

June 1, 2019

Last Updated

July 15, 2022

Results First Posted

October 12, 2020

Record last verified: 2022-06

Data Sharing

IPD Sharing
Will not share

Locations