This study is designed to evaluate the safety and effectiveness of using a combination of two different medications (extended release naltrexone and bupropion) compared to matching placebo (an inactive substance) in the treatment of methamphetamine use disorder. Participants will undergo screening, and if eligible, will receive study medications along with brief medication management for twelve weeks, with follow up visits at weeks 14 and 16. The total study duration is around 19 weeks.

The goal of this study is to evaluate sex and gender differences across adulthood (18+) in reasons for using cannabis and the perceived severity of consequences associated with cannabis use. We are also interested in understanding how these reasons for cannabis use and perceived severity of consequences are related to other mental and physical health factors. Interested individuals will first complete a brief screening survey. Based on the results of this screening survey, eligible participants will immediately be invited to complete the survey remotely online via a secure web-link. Participants can expect to complete the survey in 30-45 minutes and will be reimbursed $30 via electronic gift card (e.g., Amazon).

This study aims to investigate innovative approaches to managing chronic pain and opioid use. This study consists of two phases, each offering different treatment options. Participation is voluntary.

This study will sequentially evaluate three novel and scalable interventions for at-risk individuals on long term opioid therapy for chronic pain: (1) low-dose transdermal buprenorphine initiation without a period of opioid withdrawal; (2) a brief Cognitive Behavioral Intervention for pain (CBI); and (3) transcranial magnetic stimulation by examining standardized repeated measures of clinical outcomes at baseline, during treatment, and at follow-up.

Phase 1:
In this initial phase, all participants will have a 1-week open-label trial of buprenorphine (worn as a patch on the arm, shoulder or upper-back). This trial aims to assess the safety and effectiveness of buprenorphine in managing chronic pain and opioid use. During this phase, participants will have the opportunity to experience the effects of buprenorphine under close monitoring.

Phase 2:
After completing Phase 1, participants will have the opportunity to choose their next course of treatment. They can decide to continue with buprenorphine, and undergo a 1-week trial of either real buprenorphine or a placebo (an inactive substance). They will be randomly assigned to receive either real or placebo buprenorphine. If participants respond well to buprenorphine treatment, they may continue the medication under the care of their physician.

Alternatively, participants can explore an alternative treatment called repetitive transcranial magnetic stimulation (rTMS) in Phase 2. If they opt for rTMS, they will receive either real rTMS or a sham version interspersed with cognitive-behavioral therapy for pain. Participants will be randomly assigned to receive either real or sham rTMS.

In both phases, participants will receive close monitoring and attend regular study visits to assess safety and progress. Throughout the study, they will be asked to complete questionnaires about pain, functioning and opioid use, undergo physiological monitoring and blood samples will be collected at specific points.

It's important to note that there are potential risks associated with the study medication, such as difficulty sleeping, nausea, and dizziness. Additionally, for the rTMS arm, there is risk of mild headache, pain at the stimulation site, and there may be unknown risks related to the brain stimulation.

Participants' experience in Phase 1 will involve an open-label trial of buprenorphine, and participants' decisions in Phase 2 will determine the treatment path. While the effectiveness of these treatments is uncertain, participants will receive thorough monitoring throughout the study, and have the option to withdraw at any time. Improvement in participant symptoms is possible but not guaranteed.

This study will evaluate the associations and interactions between bar-lab/naturalistic drinking variables with participant characteristics in individuals with bipolar disorder and alcohol use disorder. This study includes 4 study visits over approximately 1 week. Questionnaires and clinical interview measures will be completed at study visits.

The goal of this project is to better understand the relationship between tobacco/nicotine and cannabis using behavioral economics during a tobacco/nicotine quit attempt. All participants will receive tobacco/nicotine cessation treatment (smoking and/or vaping treatment) for 12 weeks. To qualify, participants must be between the ages of 18-25 and use tobacco products (smoke cigarettes and/or vape nicotine) and use cannabis (in any form). Participants do not need to be interested in quitting cannabis/marijuana to qualify. This study is being conducted by the Medical University of South Carolina. All procedures are conducted remotely and there is no in-person visits are needed.

This study is testing citicoline as a possible medication to treat alcohol use disorder. Youth (ages 16-22) will be randomly assigned to receive either citicoline (2000mg per day) and or a placebo for four weeks.

All participants will receive brief counseling from a trained clinician and will undergo a brain scan and cognitive testing at the beginning and end of the treatment.

Participants must provide informed consent and youth under 18 must have parental consent to participate. The full study will last approximately one month.

Compensation is available to those who qualify.

The purpose of this study is to learn more about how cannabis use affects memory, thinking, and stress response in older adults, and how ovarian hormones affect them in older women. Participants will undergo a screening process over telehealth to confirm eligibility. There is a second telehealth visit to complete questionnaires, a cognitive testing battery, and a medical history. There is one visit in the clinic where participants will provide urine and saliva samples for drug and alcohol testing and a blood sample for a lipid testing, and complete additional cognitive tasks. They will then complete CREMA sessions (Cue Reactivity Ecologic Momentary Assessment) at home, two times a day for ten days. CREMA sessions include answering questions about marijuana use and sleep, and rating stress and craving.

The purpose of this study is to learn more about how cannabis use affects memory, thinking, and stress response in older adults, and how ovarian hormones affect them in older women. Participants will undergo a screening process over telehealth to confirm eligibility. There is a second telehealth visit to complete questionnaires, a cognitive testing battery, and a medical history. There is one visit in the clinic where participants will provide urine and saliva samples for drug and alcohol testing and a blood sample for a lipid testing, and complete additional cognitive tasks. They will then complete CREMA sessions (Cue Reactivity Ecologic Momentary Assessment) at home, two times a day for ten days. CREMA sessions include answering questions about marijuana use and sleep, and rating stress and craving.

The purpose of this study is to learn more about how cannabis use affects memory, thinking, and stress response in older adults, and how ovarian hormones affect them in older women. Participants will undergo a screening process over telehealth to confirm eligibility. There is a second telehealth visit to complete questionnaires, a cognitive testing battery, and a medical history. There is one visit in the clinic where participants will provide urine and saliva samples for drug and alcohol testing and a blood sample for a lipid testing, and complete additional cognitive tasks. They will then complete CREMA sessions (Cue Reactivity Ecologic Momentary Assessment) at home, two times a day for ten days. CREMA sessions include answering questions about marijuana use and sleep, and rating stress and craving.

This study is enrolling emerging adults (ages 18-25) with cannabis use disorder (CUD) to examine sex differences in (a) cannabis withdrawal symptoms during short-term cannabis abstinence, (b) cannabidiol (CBD) versus placebo effects on stress reactivity during short-term cannabis abstinence, and (c) the relationship between stress reactivity and time to cannabis relapse after short-term cannabis abstinence. The proposed study is designed to reveal sex differences and guide the development of tailored treatments that address factors disproportionately affecting emerging adult females with CUD.

Participants will complete an assessment visit to determine eligibility. Eligible participants will be scheduled for their next visit and will be instructed to abstain from cannabis use for 3 days. Participants will be set up with a phone application (app) and given instructions on its use. This app will send twice daily, random surveys everyday throughout study participation with questions about cannabis use, cravings, and overall mood. Participants will also complete twice daily saliva samples.

At the end of the 3 days, participants will return to the clinic for their second visit. Participants will complete a urine and blood sample at each visit. After eating a snack, participants will receive one dose of CBD (800mg) or placebo and then participate in a stress task. Upon completion of the stress task, participants will complete 3 saliva samples and then be discharged after evaluation by research staff. After the completion of Visit 2, participants will continue to complete twice daily surveys for 10 days. The study will last approximately 14 days.

There are risks involved with participating in this study, including risks associated with CBD, risks associated with the stress task and study procedures, emotional distress from answering personal questions, and loss of confidentiality. There is a risk of experiencing cannabis withdrawal symptoms during the 3-day period of cannabis abstinence. Some potential risks related to CBD include dry mouth, diarrhea, reduced appetite, drowsiness, and fatigue. There is a risk of loss of confidentiality, but the researchers will code the samples and research information to protect privacy. There are no direct benefits to the participant, but we hope the knowledge gained will help us inform future clinical strategies to address cannabis use in emerging adults.