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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01511640
Other study ID # R01DA036550
Secondary ID
Status Completed
Phase Early Phase 1
First received
Last updated
Start date February 1, 2017
Est. completion date March 15, 2020

Study information

Verified date August 2021
Source University of Kentucky
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Cannabis is the most commonly used illicit drug in the United States, and its use is associated with rates of development of abuse and dependence, treatment admission and relapse that are comparable to other illicit drugs. Currently there is no effective pharmacological treatment for cannabis-use disorders. The purpose of the present study is to evaluate the ability of pregabalin to reduce cannabis use thereby evaluating its effectiveness as a medication for cannabis-use disorders.


Recruitment information / eligibility

Status Completed
Enrollment 30
Est. completion date March 15, 2020
Est. primary completion date March 15, 2020
Accepts healthy volunteers No
Gender All
Age group 18 Years to 50 Years
Eligibility Inclusion Criteria: - regular cannabis use - good health other than cannabis use - willingness to attempt abstinence - effective form of birth control in female subjects - available for up to 6 hrs every day for two 2-week test periods with an intervening break of 7-10 days each - located in close proximity to University of Kentucky Exclusion Criteria: - medical screening outcomes outside normal ranges or deemed clinically insignificant - medical history that would contraindicate pregabalin administration

Study Design


Related Conditions & MeSH terms


Intervention

Drug:
Pregabalin
pregabalin 2x daily for duration of study
Placebo
placebo 2x daily for duration of study

Locations

Country Name City State
United States Laboratory of Human Behavioral Pharmacology Lexington Kentucky

Sponsors (1)

Lead Sponsor Collaborator
Joshua A. Lile, Ph.D.

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Number of Self-administered Puffs of Smoked Cannabis Containing Active THC Concentrations Compared to Placebo Under Controlled Laboratory Conditions The reinforcing effects of cannabis were determined using a modified progressive ratio procedure in which subjects made 8 choices between puffs of each available cannabis dose and money (US$0.50). The numbered of self-administered puffs of smoked cannabis are measured for each cannabis concentration (0 and 5.9% THC) during active (300 and 450 mg) and placebo (0 mg and 0 mg) pregabalin maintenance. 9 consecutive choice trials (i.e., no time out between trials) per cannabis dose level.