The purpose of the study is to compare a text message based mental health and substance use screening and referral to treatment program, called Listening to Women and Pregnant and Postpartum People (LTWP), to standard of care in-person mental health and substance use screening to look at rates of treatment attendance and retention in treatment. Participation would involve completing online surveys. You may be eligible to participate if you are age 18-45 years, are pregnant and entering prenatal care in one of MUSC's OB clinics, and attended a prenatal appointment at an MUSC clinic.

This research study will include heavy, long-term cannabis users with moderate to severe use desire who want or need to discontinue cannabis use and have previously had symptoms of cannabis withdrawal. Subjects participating in this research study will receive either PP-01 higher dose or lower dose (combination of nabilone and gabapentin in a varied amount), nabilone only, gabapentin only or placebo (inactive substance). This study will assess whether the study drugs help to lessen or alleviate cannabis withdrawal symptoms in study subjects.

This proposed project is to investigate the role of cocaine use in B cell dysfunctions and poor immune recovery from antiretroviral therapy in HIV.

Both withdrawal symptoms and external stressors can contribute to relapse in people that are trying to quit using marijuana. These negative feelings may be more severe in people that also have Major Depressive Disorder, making it especially hard for them to quit. The purpose of this study is to examine differences in withdrawal symptoms and stress response in people with Cannabis Use Disorder that do or do not also have major depression. Study participation will involve 3 on-site laboratory visits over 6 days. Participants will be asked to not use marijuana for 3 of those days. Participants will complete mobile phone surveys multiple times each day, wear a watch to assess sleep quality, and provide blood samples for testing at each laboratory visit. At the final laboratory visit, participants will complete a stress task.

This study is testing cannabidiol (CBD) as a possible medication to treat alcohol use disorder. Youth (ages 16-22) will receive one dose of CBD (600mg) or placebo (i.e., sugar water) before two different MRI sessions (separated by 2 weeks) to see how CBD affects the brain. The full study will last approximately one month.

Participants must provide informed consent and youth under 18 must have parental consent to participate.

Compensation is available to those who qualify.

The purpose of this two-visit brain imaging (magnetic resonance imaging, MRI) study is to identify brain targets for improving treatment and preventative interventions for individuals at risk for co-occurring bipolar disorder and alcohol use disorder. The preliminary visit for a parent and his/her biological child will include completion of clinical interviews, surveys, and labwork to determine study eligibility. If they are considered eligible for the study, brain imaging visits will occur within 1-2 weeks at which a 1-hour MRI will be completed along with additional clinical interviews, surveys, and labwork. Brief follow-up phone call interviews will be completed with participants every 3 months for 1 year. Study participation is confidential and compensated.

This research study evaluates the effects of anFDA-approved medication Gabapentin in individuals with Bipolar Disorder who smoke marijuana. Participants in the study will will be assigned to take either Gabapentin or a matched placebo. Study medication will be taken for 17 days. There will be 5 study visits, with 2 MRI brain imaging scans completed. Questionnaires and clinical interview measures will be completed at study visits along with consistent assessment of potential side effects from study medication.

Adults (ages 18+) who would like to reduce their cannabis use (N=224) will be enrolled in an 8-week treatment program. All participants will receive counseling (1 goals session with a therapist followed by 7 weekly computerized cognitive-behavioral therapy sessions). Detailed cannabis assessments (biological and self-report) will be conducted throughout treatment and at 1-, 2-, and 3-months post-treatment completion. Daily electronic diaries will be administered via text message to record detailed logs of cannabis use quantity and frequency. Salivary samples will be collected (and video observed) daily throughout treatment to analyze for progesterone.

The study will test a computerized treatment with subjects ages 13-17 years who are interested in seeking treatment for alcohol and/or cannabis use. Follow-up assessments will be conducted at one- and three-months following treatment.

Human subjects are being recruited for the proposed study to participate in usability testing for a virtual reality technology tool to be refined for assessment and prevention of risky sexual and substance use behaviors. Specifically, 15 adolescents, 15 young men, and 15 front line health care providers will participate in qualitative interviews and focus groups. Targeted enrollment is based on estimates from the existing clinical population treated by the local clinics from which participants will be recruited and the candidate's experience conducting clinical studies at these sites.