Active clinical trials for "Substance-Related Disorders"

Many individuals with schizophrenia abuse cannabis at the onset of their illness, portending a poorer course of illness and poorer treatment response. Preliminary evidence suggests that clozapine may uniquely reduce substance use in patients with schizophrenia. The purpose of this study is to establish an effective methodology for studying early treatment with clozapine in patients with co-occurring schizophrenia and cannabis use disorder, while generating pilot data comparing clozapine vs. risperidone on substance use, psychiatric symptoms, side effects, and treatment discontinuation.

Drug Courts were developed as a therapeutic alternative to incarceration of drug-involved offenders by providing 'judicially supervised' drug abuse treatment and probation for nonviolent offenders in lieu of criminal prosecution and incarceration. Outcome studies have shown that drug courts have modest effects on participation in drug abuse treatment, drug use, and employment. The Therapeutic Workplace intervention is an effective employment-based treatment that integrates abstinence reinforcement contingencies in a work setting, intended to treat individuals with histories of drug addiction and chronic unemployment. Under this intervention, drug abuse patients are hired and paid to work. To promote abstinence, patients are required to provide drug-free urine samples to gain and maintain daily access in the workplace. In this way, patients can work and earn salary, but only as long as they remain drug abstinent. Patients using drugs and lacking job skills participate in an initial training phase to initiate abstinence and establish computer data entry skills. Once abstinent and skilled, patients are hired into an income-producing Therapeutic Workplace data entry business. Given that many drug court participants suffer from long histories of drug addiction and unemployment, the Therapeutic Workplace could be ideal for this population. This proposes of this clinical trial is to evaluate the Therapeutic Workplace intervention in a Drug Court.

GSK598809 is being developed as an innovative treatment for substance dependence and potentially other compulsive behavioral disorders. This study will asses the effects of a single dose of GSK598809 in modulating nicotine reward in 2 cohorts of otherwise healthy male volunteers who smoke. Each cohort of subjects will receive a single dose of placebo or GSK598809 in two dosing sessions binded crossover fashine. There will be a washout period of at least seven days between each session.

Purpose of the project is to examine the effectiveness of Reinforcement-Based Treatment (RBT) on drug abuse and psychosocial outcomes of iner city opiate abusers who have recently completed a brief detoxification.

This study tests the effectiveness of two 24 month, telephone-based adaptive continuing care interventions for patients with cocaine dependence. The two interventions are predicted to produce better drug use outcomes than standard care. Furthermore, the intervention that also includes monetary incentives for continued participation is hypothesized to produce better retention and drug use outcomes than the intervention without incentives. Economic analyses will determine the cost-effectiveness and benefit-cost of the interventions relative to standard care, and to each other.

Study to investigate the safety, tolerability and pharmacokinetics of GSK598809 in otherwise healthy volunteers. This study is required because this drug is being developed for the treatment of nicotine dependence. It is important to evaluate how this drug interacts in healthy smokers. The study is planned to consist of a single part, with 4 dosing periods. Subjects will receive 3 escalating doses of GSK598809 and 1 dose of placebo. There will be at least 1 week of wash out between doses. In each dosing period 14 subjects will receive escalating doses and 4 subjects will receive placebo. The actual doses used will be determined based on the safety/ tolerability and pharmacokinetics during the previous dose. It is expected that the duration of this study will be approximately 10 weeks.

Study objective: Feasibility and efficacy of a standardised psychosocial intervention (psychoeducation) in substituted opioid dependent patients

Currently there are no medications approved for the treatment of methamphetamine addiction. Bupropion is an antidepressant that is approved by the Food and Drug Administration (FDA) for the treatment of depression and for cigarette smoking cessation but is not approved by the FDA for the treatment of methamphetamine addiction. Preliminary research studies suggest that bupropion may help people receiving treatment for methamphetamine addiction to reduce or to stop their methamphetamine use. But results of these studies also suggest that bupropion may help certain groups of patients more than others, such as men versus women and light versus heavy methamphetamine users, although the reasons for this difference are not known. One possibility is that a person's genetic make up may influence whether or not they respond to treatment with bupropion for methamphetamine addiction. The purpose of the study is to determine if bupropion is can help people reduce or stop their methamphetamine use and to investigate whether genetic variations influence whether people respond to treatment with bupropion for methamphetamine addiction, which may help doctors and patients better decide if treatment with bupropion will be beneficial or not. To identify possible genetic variations that influence response to bupropion, we will perform genetic tests on blood or saliva specimens from participants receiving treatment with either bupropion or placebo (which is a pill that contains no medication) in conjunction with standard cognitive behavioral therapy drug counseling. We will compare methamphetamine use, as assessed with urine drug screens, among participants receiving bupropion versus those receiving placebo to determine if bupropion helps people to reduce or stop their methamphetamine use. We will then compare the results of the genetic tests among participants who respond and who do not respond to bupropion. In addition, since the amount of methamphetamine a person uses was associated with response to bupropion in preliminary studies, we will also compare the results of genetic testing among persons with heavy versus light methamphetamine use before entering treatment. Results of this study have the potential to provide insights into the biology of methamphetamine addiction and help increase the understanding of how bupropion works. This information could be useful to develop effective medications for methamphetamine addiction and to improve the ability of clinicians to provide treatment to patients with methamphetamine addiction.

The investigators will adapt and test an existing treatment (group CBT for depression) for use in outpatient substance use treatment settings as delivered by trained substance use counselors. The investigators expect that treatment will lead to improved depression and substance use outcomes.

The broad, long-term objective of the proposed randomized clinical trial is to evaluate the efficacy, moderators and mechanisms of change of two cognitive-behavioral aftercare treatments for alcohol and other drug (AOD) use disorders in preventing AOD relapse compared to treatment as usual (TAU) offered in the community. The two cognitive-behavioral aftercare treatments are relapse prevention (RP) and Mindfulness-Based Relapse Prevention (MBRP), which integrates mindfulness meditation and RP aftercare components.