Treatment Trials

13 Clinical Trials for Various Conditions

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RECRUITING
PK/PD of Oral and Vaporized Delta-9-Tetrahydrocannabinol (THC) in Older Adults
Description

The overarching goal of this double-blind, placebo-controlled, crossover study is to characterize the pharmacokinetic (PK) and pharmacodynamic (PD) effects of the main analgesic and psychoactive constituent of cannabis, delta-9 tetrahydrocannabinol (THC), among older adults - the fastest growing population of cannabis consumers, and the most likely age cohort to use cannabinoids to relieve pain. The research will proceed with a sub-study, randomizing 20 men and women aged 65 years or older, to two doses focusing on oral THC administration and a sub-study randomizing 20 men and women aged 65 years or older, to two doses focusing on vaporized THC administration.

COMPLETED
Evaluation of the Effects of Cannabidiol (CBD) Compared to Delta-9-Tetrahydrocannabinol (THC) and Alprazolam
Description

The purpose of this study is to evaluate the abuse potential of CBD to determine whether it should remain as a Schedule I drug under the Controlled Substances Act, or be recommended for decontrol.

COMPLETED
Treatment of Chronic Pain With Cannabidiol (CBD) and Delta-9-tetrahydrocannabinol (THC)
Description

This is a study comparing the effects of Delta-9-Tetrahydrocannabinol (THC) versus Cannabidiol (CBD) versus a placebo on chronic non-cancer pain.

COMPLETED
Effects of Delta-9 Tetrahydrocannabinol (THC) on Retention of Memory for Fear Extinction Learning in PTSD: R61 Study
Description

The goal of this study is to look at how a type of drug called cannabinoids are related to the processing of fear signals, the experience of emotions and fear, and the pattern of activity in the brain that is involved in these processes and how this relates to the development of post-traumatic stress disorder (PTSD). PTSD is an anxiety disorder that occurs after experiencing a traumatic event(s) and is characterized by unwanted memories of the trauma(s) through flashbacks or nightmares, avoidance of situations that remind the person of the event, difficulty experiencing emotions, loss of interest in activities the person used to enjoy, and increased arousal, such as difficulty falling asleep or staying asleep, anger and hypervigilance. The information gained from this study could lead to the development of new treatments for persons who suffer from anxiety or fear-based disorders.

COMPLETED
A Laboratory Model of Increasing Delta-9-tetrahydrocannabinol (THC) Potency on Cigarette Smoking
Description

The objective of the proposed research is to investigate how smoking increasing potency of THC (i.e., the psychoactive ingredient in marijuana) changes tobacco cigarette smoking behavior, urges, subjective effects, and abuse liability. This study will be a within-subjects, placebo-controlled study in our clinical laboratory of the effect of active vs. placebo marijuana on cigarette puff topography, exhaled carbon monoxide, urge, subjective effects, and abuse liability among 7 adults who smoke both marijuana and tobacco cigarettes.

Conditions
RECRUITING
Effects of Delta9-tetrahydrocannabinol (THC) on Retention of Memory for Fear Extinction Learning in PTSD: R33 Study
Description

The goal of this study is to look at how a type of drug called cannabinoids are related to the processing of fear signals, the experience of emotions and fear, and the pattern of activity in the brain that is involved in these processes and how this relates to the treatment of post-traumatic stress disorder (PTSD). PTSD is an anxiety disorder that occurs after experiencing a traumatic event(s) and is characterized by unwanted memories of the trauma(s) through flashbacks or nightmares, avoidance of situations that remind the person of the event, difficulty experiencing emotions, loss of interest in activities the person used to enjoy, and increased arousal, such as difficulty falling asleep or staying asleep, anger and hypervigilance. The information gained from this study could lead to the development of new treatments for persons who suffer from anxiety or fear-based disorders.

RECRUITING
Effects of Drugs on Stress Memories
Description

There is evidence that cannabinoids, including delta-9-tetrahydrocannabinol (THC), reduce responses to acute stress and fear-related stimuli, but few studies have examined the effects of THC on memories of stressful experiences. The researchers hypothesize that THC will attenuate behavioral and physiological responses to negative valence stimuli, including memories of aversive experiences.

WITHDRAWN
The Safety, Tolerability and Efficacy of Dronabinol, for the Treatment of Nausea and Vomiting in Familial Dysautonomia
Description

This is a pilot clinical trial of dronabinol to treat disabling attacks of nausea and vomiting in patients with familial dysautonomia (FD, also known as Riley Day syndrome or hereditary sensory and autonomic neuropathy type III). FD is a rare autosomal recessive disease in which the growth and development of selective nerves is impaired. Patients with FD suffer recurrent uncontrollable nausea and vomiting crises accompanied by skin flushing, tachycardia and arterial hypertension. Current treatments of nausea are ineffective or have intolerable side sides. Our long-term goal is to treat nausea effectively and without side effects, a therapeutic intervention that would markedly improve the quality of life of patients with FD.

COMPLETED
Motivation and Skills for Delta-9-tetrahydrocannabinol/Ethanol (THC/ETOH+) Teens in Jail
Description

This study will focus on treating substance abusing incarcerated teens using individually administered Motivational Interviewing (MI) followed by group Cognitive Behavior Therapy (CBT). The control group receives individualized Relaxation Training (RT) followed by group Treatment as Usual (TU). Currently, there is little research regarding effective group treatments for incarcerated teens and this study will address this gap in our knowledge base. We seek to reduce substance use and associated risky behaviors post-release (including driving under the influence, risky sexual behaviors, etc.)

RECRUITING
Combined THC and CBD for OUD and Chronic Pain
Description

The primary objective of this phase 2 study is to investigate the therapeutic potential of orally administered combined delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD) in relieving both pain and cue-induced opioid craving in people with co-occurring opioid use disorder (OUD) and chronic pain who are undergoing methadone therapy.

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

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).

Conditions
COMPLETED
Testing the Interactive Effects of Delta-9-Tetrahydrocannabinol and Pregnenolone
Description

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 THC.

Conditions
WITHDRAWN
Behavioral and Physiological Effects of THC and CBD
Description

This study will evaluate physiological and behavioral responses to vaporized delta9-Tetrahydrocannabinol (THC) and cannabidiol (CBD) administered via inhalation.