Medications Development for the Treatment of Cannabis Related Disorders - Full Text View

Purpose

The primary objective of this application is to test the neurobehavioral mechanisms and effects of aprepitant as a new cessation agent for cannabis, tobacco or both.

Condition	Intervention	Phase
Nicotine Withdrawal Marijuana Dependence Cannabis Dependence Nicotine Dependence Cannabis Abuse	Drug: Placebo Aprepitant Drug: Active Aprepitant	Phase 1


Study Type:	Interventional
Study Design:	Allocation: Randomized Intervention Model: Single Group Assignment Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) Primary Purpose: Basic Science
Official Title:	Medications Development for the Treatment of Cannabis Related Disorders

Resource links provided by NLM:

MedlinePlus related topics: Marijuana

Drug Information available for: Aprepitant

U.S. FDA Resources

Further study details as provided by University of Virginia:

Primary Outcome Measures:

withdrawal symptom severity, measured on a 0 (not at all) to 3 (severe) scale [ Time Frame: collected on each study day ]
Subjective experience of withdrawal symptoms for cannabis, tobacco, and both (eg: Irritability, Sleep difficulty, Chills, Nervousness)
"craving" measured using the Marijuana craving questionaire and the tobacco craving questionaire [ Time Frame: collected on each study day ]
Subjective measures of craving for cannabis, tobacco, and both Questionaires are anchored with strongly disagree to strongly agree (1-7)
reinforcing effects, as measured using the Multiple Choice Questionaire [ Time Frame: collected each day of study ]
Reinforcement value of cannabis and tobacco as measured by preference for money over the administration of either drug; questionaire has 70 questions and money value vs. drug ranges from 25 cents to 25 dollars 1-70.

Secondary Outcome Measures:

sleep quality [ Time Frame: collected on each study day ]
A VAS sleep questionnaire will be used each morning to assess daily sleep quality.
Neurocognitive Function [ Time Frame: collected on days 1-4 of the study ]
The purpose of examining the neurocognitive function of our participants on days 1-4 is to examine the safety of the co-administration of aprepitant at 160 mg/day with oral THC (dronabinol 10 mg) on brain function. Tasks used are the DSST - The Digit Symbol Substitution Test measures the learning of integrating visual and motor skills, and the SRTT- The Simple reaction Time Task is a well validated computerized test for assessing the effects of psychoactive drugs on performance.
Number of Participants with Adverse Events as a Measure of Safety and Tolerability [ Time Frame: each day of study ]
Blood pressure, pulse, and a Systematic Assessment For Treatment Emergent Events (SAFTEE) are collected daily. Electrocardiograms (EKGs) are collected at baseline and discharge.


Enrollment:	63
Study Start Date:	August 2009
Study Completion Date:	April 2012
Primary Completion Date:	January 2012 (Final data collection date for primary outcome measure)

Arms	Assigned Interventions
Experimental: Behavioral Condition 1 Nicotine patch (21 mg) plus placebo oral cannabis (0 mg; 3 times a day on days 2-4, given once on day 5)	Drug: Placebo Aprepitant Placebo Aprepitant 0 mg once daily for 5 days Drug: Active Aprepitant Active Aprepitant 160 mg once daily for 5 days
Experimental: Behavioral Condition 2 Placebo nicotine patch (0 mg) plus oral cannabis (10 mg, 3 times each day, days 2-4, day 5 given once)	Drug: Placebo Aprepitant Placebo Aprepitant 0 mg once daily for 5 days Drug: Active Aprepitant Active Aprepitant 160 mg once daily for 5 days
Experimental: Behavioral Condition 3 Placebo nicotine patch (0 mg) plus placebo oral cannabis (0 mg, 3 times each day days 2-4, day 5 given once)	Drug: Placebo Aprepitant Placebo Aprepitant 0 mg once daily for 5 days Drug: Active Aprepitant Active Aprepitant 160 mg once daily for 5 days

Detailed Description:

Stress (emotional, physical, social) facilitates drug seeking behavior through the activation of the HPA axis, autonomic nervous system, and brain DA systems. Furthermore, alterations within several neuropeptide systems (CRF, Substance P, and others) also contribute to the role of stress in addiction. Central to this project is that anxiety and stress responses are modulated by substance P and its preferred target, the NK1 receptor. Therefore the aim of this pilot clinical trial is to determine the safety and efficacy of aprepitant (a neurokinin 1 (NK1) receptor antagonist). We hypothesize that the NK1 receptor antagonist, aprepitant, will be safe, tolerable and efficacious at reducing the withdrawal symptoms, cue craving, and reinforcement value for both cannabis and tobacco resulting from the cessation of either or both drugs. We will assess this hypothesis in the context of a carefully controlled human laboratory study in which subjects (N=72) will be randomized in a 3 x 2 factorial design to one of 3 behavioral conditions; a) withdrawn from both substances, b) withdrawn from tobacco only, or c) withdrawn from cannabis only, and to receive one of 2 medication dose conditions: placebo or aprepitant (160 mg/day). Medication will be administered for 5 days, followed by a cue challenge, choice procedure, and then a consequence (i.e., oral cannabis or a cigarette or money) also on day 5.

Eligibility


Ages Eligible for Study:	18 Years to 45 Years (Adult)
Sexes Eligible for Study:	All
Accepts Healthy Volunteers:	Yes

Criteria

Inclusion Criteria:

Must meet DSM-IV/ICD-10 criteria for cannabis abuse or dependence
Must be non-treatment seeking individuals
Participant does not meet DSM-IV criteria for any current (i.e., criteria met at any point in the past 30 days) dependence on a substance other than alcohol, nicotine, caffeine, or marijuana or physiological dependence on alcohol requiring medical detoxification.
No subjects who have trouble reading the English language or visual or hearing problems that may interfere with the collection of data
Not currently taking other medications (with the exception of oral contraceptives) that would preclude safe participation in this study
Must test negative for pregnancy prior to inclusion
females using birth control pills must agree to use a condom during intercourse for 1 month after participation in study because the study medication will decrease the effectiveness of the birth control pill rendering it ineffective
Should be in general good health
No evidence of recent use of other illicit drugs on a urine toxicity screen prior to admission

Exclusion Criteria:

Major current (within last 90 days) Axis I psychopathology (e.g., major depressive disorder, bipolar disorder, schizophrenia)
Presence of significant medical illness (e.g., diabetes, cardiovascular disease, hypertension, cancer, epilepsy, kidney disease)
Current, repeated illicit drug use (other than marijuana)
Subject is breastfeeding or pregnant
Concurrent therapy with drugs known to inhibit CYP3A4 activity
Request for drug treatment
Current parole or probation
Recent history of significant violent or suicide behavior
Allergic to sesame oil

Contacts and Locations

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01204723

Locations


United States, Virginia
Clinical Pharmacological Research Unit (CPRU), University of Virginia School of Medicine
Charlottesville, Virginia, United States, 22903
University of Virginia Center for Addiction Education and Treatment (UVA CARE)
Charlottesville, Virginia, United States, 22908

Sponsors and Collaborators

University of Virginia

National Institute on Drug Abuse (NIDA)

Investigators


Principal Investigator:	Heather M Haughey, Ph.D.	University of Virginia School of Medicine, Dept. Psychiatry and Neurobehavioral Sciences

More Information

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

Gunderson EW, Haughey HM, Ait-Daoud N, Joshi AS, Hart CL. A survey of synthetic cannabinoid consumption by current cannabis users. Subst Abus. 2014;35(2):184-9. doi: 10.1080/08897077.2013.846288.


Responsible Party:	University of Virginia
ClinicalTrials.gov Identifier:	NCT01204723 History of Changes
Other Study ID Numbers:	14392 R01DA027131 ( U.S. NIH Grant/Contract )
Study First Received:	September 14, 2010
Last Updated:	May 31, 2012

Keywords provided by University of Virginia:


Marijuana Abuse cannabis Nicotine Dependence Nicotine Withdrawal neurokinin Receptor NK1 Receptor antagonist Substance P Recurrence Substance Withdrawal Syndrome Substance-Related Disorders Disorders of Environmental Origin Mental Disorders	Disease Attributes Pathologic Processes Tetrahydrocannabinol Therapeutic Uses Psychotropic Drugs Analgesics, Non-Narcotic Analgesics Sensory System Agents Peripheral Nervous System Agents Neurotransmitter Agents Molecular Mechanisms of Pharmacological Action Narcotic Antagonists

Additional relevant MeSH terms:


Marijuana Abuse Tobacco Use Disorder Substance Withdrawal Syndrome Substance-Related Disorders Chemically-Induced Disorders Mental Disorders Nicotine Aprepitant Fosaprepitant Analgesics Molecular Mechanisms of Pharmacological Action Peripheral Nervous System Agents	Ganglionic Stimulants Autonomic Agents Physiological Effects of Drugs Nicotinic Agonists Cholinergic Agonists Cholinergic Agents Neurotransmitter Agents Sensory System Agents Antiemetics Gastrointestinal Agents Neurokinin-1 Receptor Antagonists

ClinicalTrials.gov processed this record on August 18, 2017

Medications Development for the Treatment of Cannabis Related Disorders (MTC)