Is NCT07196462 recruiting in Nashville, TN?

Yes, NCT07196462 is currently recruiting participants at its Nashville, TN location. This cannabis use clinical trial is actively enrolling qualified participants.

How do I join the cannabis use clinical trial in Nashville?

To join this clinical trial in Nashville, complete the eligibility form on this page. A study coordinator will contact you to discuss next steps and determine if you qualify.

Is participation in this Nashville clinical trial free?

Yes, all study-related care is provided at no cost to qualified participants. Many studies also offer compensation for time and travel expenses.

Cannabis Use Clinical Trial in Nashville, TN

About This Cannabis Use Study in Nashville

The central hypothesis is this: Brain circuits most relevant to cannabis use in schizophrenia are distinct from pathways identified in healthy controls who use cannabis. This study seeks to provide evidence that targeted stimulation of the DMN leads to both altered network activity and a concomitant behavioral change in cue-induced craving and cognitive performance in individuals with schizophrenia and schizoaffective disorder, while targeted stimulation of the L DLPFC leads to these changes in healthy controls who use cannabis. This study will test a model that integrates brain network pathophysiology and cognition to 1) explain the prevalence of cannabis use in schizophrenia and 2) identify a target for engagement in schizophrenia. This study seeks to establish a neuroscientific framework to guide future treatment-oriented studies aimed at reducing craving and improving cognitive performance in individuals with schizophrenia and schizoaffective disorder. This is a study of the effect of 2 rTMS interventions on functional connectivity and craving in individuals with schizophrenia or schizoaffective disorder and healthy controls who use cannabis. Aim 1: Target Engagement: Determine if rTMS manipulates functional connectivity of each target (DMN, L DLPFC) (n=100). Aim 2: Clinical Efficacy: Determine if rTMS affects cue-induced craving and if craving change correlates with change in functional connectivity (n=100). As an exploratory analysis, the factors that explain individual variance in rTMS-induced connectivity change will also be explored.

Sponsor: Vanderbilt University Medical Center

Who Can Participate

Inclusion Criteria

for Psychosis Participants:

Age between 18-65 years

Diagnosis of a psychotic disorder according to DSM-5 criteria and confirmed by SCID

Current cannabis use of at least 2/10 on a Visual Analog Scale

Current cannabis use (confirmed by urine cannabis testing)

Must be able to read, speak and understand English

Must be judged by study staff to be capable of completing the study procedures

Participants will be in stable outpatient psychiatric treatment and psychiatrically stable with no recent (within the past 30 days) psychiatric hospitalizations or changes in their psychiatric medication regimens. Inclusion Criteria for Healthy Controls: \- All of the above except for participants will not have a diagnosis of a psychotic disorder nor a first-degree relative with a psychotic disorder.

Exclusion Criteria

for ALL participants:

DSM-5 intellectual disability

Substance use disorder (other than cannabis or nicotine) within the past three months

Positive urine drug screen for illicit substance use that can increase seizure risk (cocaine, benzodiazepines, amphetamine, methamphetamine)

Any history of a progressive or genetic neurologic disorder (e.g. Parkinson's disease, multiple sclerosis, tuberous sclerosis, Alzheimer's Disease) or acquired neurological disease (e.g. stroke, traumatic brain injury, tumor), including intracranial lesions

History of head trauma resulting in any loss of consciousness (\>15 minutes) or neurological sequelae

Current history of poorly controlled headaches including chronic medication for migraine prevention

History of fainting spells of unknown or undetermined etiology that might constitute seizures

History of seizures, diagnosis of epilepsy, or immediate (1st degree relative) family history epilepsy with the exception of a single seizure of benign etiology (e.g. febrile seizures) in the judgment of a board-certified neurologist

Chronic (particularly) uncontrolled medical conditions that may cause a medical emergency in case of a provoked seizure (cardiac malformation, cardiac dysrhythmia, asthma, etc.)

Any metal in the brain or skull (excluding dental fillings) or elsewhere in the body unless cleared by the responsible covering MD (e.g. MRI compatible joint replacement)

Any devices such as pacemaker, medication pump, nerve stimulator, TENS unit, ventriculo-peritoneal shunt unless cleared by the responsible covering MD

All female participants of child-bearing age will be required to have a pregnancy test; any participant who is pregnant or planning to become pregnant will not be enrolled in the study

Medications will be reviewed by the responsible covering physician and a decision about inclusion will be made based on the participant's past medical history, drug dose, history of recent medication changes or duration of treatment, and use of CNS active drugs. The published TMS guidelines review of medications to be considered with rTMS will be taken into consideration given their described effects on cortical excitability measures.

Any changes in medications or hospitalizations within the past 30 days.

Participants who, in the investigator's opinion, might not be suitable for the study or would be unable to tolerate the study visit These exclusion criteria strictly follow all recommended guidelines as endorsed by the International Federation of Clinical Neurophysiology and the International Society for Transcranial Stimulation.

Not sure if you qualify? Submit your interest and a study coordinator will help determine your eligibility.

Frequently Asked Questions

Q:Is this study available in Nashville?

Yes, this clinical trial (NCT07196462) has an active research site in Nashville, TN that is currently enrolling participants.

Q:Is it safe to participate?

Clinical trials follow strict safety guidelines and ethical standards. This study has been reviewed and approved, and participants are closely monitored by medical professionals. You can withdraw at any time.

Q:Will I be compensated?

Many clinical trials offer compensation for your time and travel expenses. Specific compensation details will be discussed during the screening process. All study-related medical care is provided at no cost.

Q:Can I leave the trial if I change my mind?

Absolutely. Participation is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty.

Still have questions? Our study coordinators are here to help.

Cannabis Use Treatment Options in Nashville, TN

If you're searching for cannabis use treatment options in Nashville, TN, this clinical trial (NCT07196462) may be an excellent opportunity. Clinical trials provide access to cutting-edge treatments that aren't yet available to the general public, often at no cost to participants.

Our Nashville research site is actively enrolling participants for this clinical trial. You'll receive care from experienced cannabis use specialists who are at the forefront of medical research. All study-related care, including examinations, treatments, and monitoring, is provided at no cost to qualified participants.

Cannabis Use Clinical Trial in Nashville, TN

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