Active clinical trials for "Substance-Related Disorders"

The purpose of this study is to conduct experiments to examine subjective and reinforcing effects of nitrous oxide. Mood altering and psychomotor effects will be tested on non-drug abusers and preference procedures will be used to assess reinforcing effects. To examine effects of subanesthetic concentrations of nitrous oxide on cold-pressor pain in humans.

The purpose of this study is to conduct experiments to examine subjective and reinforcing effects of nitrous oxide. Mood altering and psychomotor effects will be tested on non-drug abusers and preference procedures will be used to assess reinforcing effects. To evaluate the acute and residual effects of subanesthetic concentrations of isoflurane/nitrous oxide combinations in healthy volunteers.

The purpose of this study is to evaluate the effects of treatment medications (methadone, buprenorphine, LAAM, naltrexone, naltrexone microcapsules, and methoclocinnamox) on I.V. and smoked heroin self-administration."

The purpose of this study is to evaluate the feasibility and effectiveness of a peer-led, brief, behavioral intervention to improve adherence to medication for opioid use disorder (MOUD) among low-income, minoritized individuals living with opioid use disorder (OUD) in Baltimore, Maryland. The intervention is based on behavioral activation (BA) and is specifically designed to be implemented by a trained peer recovery specialist. In this pilot trial, the investigators will evaluate the feasibility, acceptability, and fidelity of this approach (implementation outcomes) and preliminary effectiveness on methadone treatment retention at three months.

The purpose of this study is to address two key questions in the literature on incentives for substance use. The first question is whether it is more effective to directly incentivize the outcome of interest - drug abstinence - or to incentivize behaviors that are inputs into the production of abstinence. This study will compare two versions of the incentive program: one that incentivizes inputs to achieving abstinence and one that incentivizes the outcome of abstinence. The second question is how to optimize the size of incentives over time to maximize incentive effectiveness. This will be done by randomly varying the size and timing of incentives offered to participants in both the Inputs and Outcomes groups. The incentive amounts will then be varied across participants and time to fit a structural model of abstinence behaviors over time. The model will be used to describe the optimal shape of incentives over time.

A single center, open-label SUBLOCADE treatment extension study in which up to 25 participants diagnosed with moderate to severe opioid use disorder (OUD) could be enrolled.

The goal of this study is to test the efficacy and the feasibility of the Asian Women's Action for Resilience and Empowerment (AWARE) intervention, in the real world setting -- student health service centers at Boston University, Wellesley College, and Harvard University. AWARE is an 8-week group intervention specifically designed to address mental health and sexual health issues among Asian-Pacific Islander (API) women. One AWARE group (final number of 8-10 API women who will be treated) will be held at BU Student Health Services, two groups at Wellesley College, and two groups at Harvard University Health Services for undergraduate and graduate students who meet the demographic and clinical criteria. During the intervention period, participants will attend the AWARE group counseling sessions, which are 90 minutes, once a week, for 8 weeks. Each week's session is focused on a specific theme related to the cultural and gender-specific issues typical among young Asian American women. The sessions are led by staff therapists at either institution. Participants will fill out forms that detail their therapeutic goals ("commitments") and any adverse emotional/behavioral events from the past week. Participants will also receive daily text messages that reinforce the group session themes. Participants will be assessed pre- and post-intervention on clinical outcomes, including depression, anxiety, PTSD, and suicidality, using standardized quantitative instruments. This serves to evaluate the efficacy of AWARE at improving mental health outcomes. Participants will also participate in a post-intervention focus group session to evaluate the program's implementation and suggest ways for future improvement.

The addition of tDCS as an adjunct to pharmacotherapy is a novel approach but one that is grounded in a growing evidence-base.The primary objective of this research is to provide preliminary evidence of the effectiveness of tDCS as an adjunct treatment to pharmacotherapy for smoking cessation. The investigators hypothesize that the addition of active tDCS to the left DLPFC will improve the effectiveness of varenicline as reflected by higher quit rates at end of treatment compared to the sham group. Smoking status will be biochemically confirmed at various time points using expired cotinine measures. Furthermore, the investigators will be collecting neuroimaging (fMRI) data as well as measures of attentional bias to explore the neurological and physiological correlates from using adjunct tDCS and varenicline therapy.

The aims of the current study phase (R21) are: Aim 1. Develop a patient decision aid (PtDA-MAT) by incorporating best available scientific evidence on MAT as well as feedback from patients and clinical providers related to clinical priorities, perceived utility, and acceptability; Aim 2. Conduct pilot testing of the PtDA-MAT in an iterative process guided by an expert panel and involving key stakeholders (e.g., patients, physicians, policymakers) and field-testing.

Women who take opioid substitution therapy have higher rates of unintended pregnancy, more pregnancies, and a higher risk of pregnancy complications than the general population. Current practice is to test for pregnancy only at patient request or if the clinician suspects pregnancy. This study will compare monthly pregnancy testing to current practice in a double blind randomized control trial. As many women of childbearing age as possible will be recruited from the Hamilton Clinic for Opioid Substitutional Therapy. Women assigned to the intervention will have monthly testing at the same time as their monthly urine drug testing at the clinic. The primary objective is to assess if there is a significant difference is early pregnancy detection and the secondary objectives are to assess differences in pregnancy disposition and gestational age at entry to prenatal or abortion care.