Testing the Interactive Effects of Delta-9-Tetrahydrocannabinol and Pregnenolone: Sub-Study I

NCT ID: NCT02811939

Last Updated: 2022-03-02

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

13 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-04-07

Study Completion Date

2017-06-09

Brief Summary

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The overall purpose of this study is to examine the effect of Pregnenolone (PREG) on the acute psychosis-like and cognitive effects of Delta-9-Tetrahydrocannabinol (THC). This will be tested by pretreating healthy individuals with PREG, and then assessing their responses to Dronabinol (THC).

Detailed Description

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Conditions

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Healthy

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Active THC and Placebo Pregnenolone

Group Type EXPERIMENTAL

Active Dronabinol

Intervention Type DRUG

20 mg capsule of Dronabinol will be administered orally

Placebo Pregnenolone

Intervention Type DRUG

Control: Placebo given sublingually (under the tongue)

Active THC and Active Pregnenolone

Group Type EXPERIMENTAL

Active Dronabinol

Intervention Type DRUG

20 mg capsule of Dronabinol will be administered orally

Active Pregnenolone

Intervention Type DRUG

1.79 mg/kg of Pregnenolone will be administered sublingually (under the tongue)

Placebo THC and Active Pregnenolone

Group Type EXPERIMENTAL

Active Pregnenolone

Intervention Type DRUG

1.79 mg/kg of Pregnenolone will be administered sublingually (under the tongue)

Placebo Dronabinol

Intervention Type DRUG

Control: Placebo pill (no active cannabinoids) administered orally

Placebo THC and Placebo Pregnenolone

Group Type PLACEBO_COMPARATOR

Placebo Dronabinol

Intervention Type DRUG

Control: Placebo pill (no active cannabinoids) administered orally

Placebo Pregnenolone

Intervention Type DRUG

Control: Placebo given sublingually (under the tongue)

Interventions

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Active Dronabinol

20 mg capsule of Dronabinol will be administered orally

Intervention Type DRUG

Active Pregnenolone

1.79 mg/kg of Pregnenolone will be administered sublingually (under the tongue)

Intervention Type DRUG

Placebo Dronabinol

Control: Placebo pill (no active cannabinoids) administered orally

Intervention Type DRUG

Placebo Pregnenolone

Control: Placebo given sublingually (under the tongue)

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Exposed to cannabis at least once in lifetime

Exclusion Criteria

* Cannabis naïve
* Individuals with a documented reaction/allergy to Pregnenolone
* Individuals with a documented reaction/allergy to Sesame oil
Minimum Eligible Age

18 Years

Maximum Eligible Age

55 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Yale University

OTHER

Sponsor Role lead

Responsible Party

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Deepak C. D'Souza

Professor of Psychiatry

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Deepak Cyril D'Souza, MD

Role: PRINCIPAL_INVESTIGATOR

Yale Univerisity, School of Medicine

Locations

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Biological Studies Unit at the VA Connecticut Healthcare System, Yale School of Medicine

West Haven, Connecticut, United States

Site Status

Countries

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United States

Other Identifiers

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1501015242.A

Identifier Type: -

Identifier Source: org_study_id

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