View clinical trials related to Substance-Related Disorders.
Filter by:The purpose of this study is to evaluate the efficacy of prize-based contingency management (CM) when administered exclusively in groups. Substance dependent patients (N=360) at community-based treatment programs are randomly assigned to one of two conditions: (a) standard, non-CM treatment or (b) standard treatment plus prize CM delivered in groups. In the CM condition, patients earn the opportunity to win prizes for attending groups and submitting drug-free biological specimens. Substance use and psychosocial problems are measured at intake, month 1, month 3 (post treatment), and at 6-, 9-, and 12-month follow-up evaluations. We also assess patient characteristics that may be associated with improved outcomes within and across conditions.
Due to its ease of synthesis and powerful psychostimulant effects, abuse of methamphetamine has increased rapidly over the last decade. No medications are currently approved for the treatment of methamphetamine dependence or withdrawal. The purpose of this study is to determine whether perindopril, an angiotensin converting enzyme (ACE) inhibitor, modifies cardiovascular responses and adverse events when taking methamphetamines.
The purpose of this study is to test a novel distance-based (telephone) intervention to help transplant candidates with current or recent substance abuse to stay "clean and sober" both prior and following transplant surgery.
The purpose of this study is to evaluate the effectiveness of a low-cost contingency management procedure as compared to standard treatment. Using a cross-over design, CM is implemented at different community-based clinics and compared with non-CM in the same facilities. Research staff collects information regarding patients' demographic characteristics, attendance, and outcomes at the clinics. During Phase A (non-CM), standard clinical practice is in place. During Phase B (CM), all patients have the chance to win prizes by coming to treatment. Each participating clinic is randomly assigned to receive either the A or B phase first; each phase is in effect for 16 weeks.
The purpose of this study is to determine whether substance abuse treatment designed specifically for drug-dependent women offenders provides better outcomes than standard drug court treatment (mixed-gender programs).
The major aim of the project is to document and evaluate two treatments for female offenders with substance abuse problems (TC and cognitive behavioral), simultaneously studying the process of treatment, and relating treatment process to treatment outcome.
The purpose of this study is to evaluate the effectiveness of a lower-cost contingency management (CM) procedure in Hispanic substance abusing outpatients. Thirty individuals meeting DSM-IV criteria for substance dependence receive one of two conditions: (a) standard treatment, or (b) standard treatment plus prize CM. Using a cross-over design, CM is implemented in a community-based outpatient clinic and compared with non-CM in the same clinic. The participating clinic is randomly assigned to receive either the CM or non-CM phase first; 15 weeks after the final participant in one phase is enrolled, a one-week washout period occurs, followed by a switch to the other phase. Patients initiating outpatient treatment during the non-CM phase receive standard treatment and submit urine and breath samples 2/week during Weeks 1-6 and 1/week during Weeks 7-12. Patients initiating treatment during the CM phase also receive standard treatment and the same breath and urine monitoring. In addition, they earn the opportunity to win prizes for coming to treatment and for submitting negative breath and urine samples. Follow-up interviews are conducted at 1,3,6 and 9 months following intake during which substance use and psychosocial functioning are assessed.
The purpose of this study is to compare voucher-based contingency management (CM) procedures to a lower-cost CM system that provides opportunities to win prizes. Cocaine-dependent outpatients are randomly assigned to (a) standard treatment, (b) standard treatment plus voucher CM for abstinence, defined by negative breath and urinalysis test results, or (c) standard treatment plus prize CM for abstinence, defined by negative breath and urinalysis test results. Urine and breath samples are collected 3x/week during Weeks 1-3, 2x/week during Weeks 4-6 and 1x/week during Weeks 7-12. Follow-up interviews are conducted 1,3,6 and 9 months following intake during which substance use and psychosocial functioning are assessed.
The primary purpose of the study is to determine if the central feature of the Therapeutic Workplace, the abstinence reinforcement contingency, is critical to initiate cocaine abstinence in injection drug using methadone patients who use cocaine consistently during methadone treatment. All subjects initially will be invited to attend the Therapeutic Workplace for an initial period, but abstinence will not be required to work during that time. During this initial period, vouchers will be contingent only on workplace attendance and performance on the training programs. Subjects (n=70) who attend the workplace consistently during the first 4 weeks of treatment, but who continue to use cocaine will be randomly assigned to a Work Only or an Abstinence Plus Work group. Subjects in the Work Only group will continue to be able to work independent of their urinalysis results. However, subjects in the Abstinence Plus Work group will be required to provide urine samples that show evidence of recent cocaine abstinence. Subjects in both groups will be invited to stay in the workplace for 6 months. We expect the subjects in the Abstinence and Work group will achieve higher rates of abstinence than the subjects in the Work Only group. This result would show that the abstinence reinforcement contingency (i.e., the requirement to provide cocaine-free urine samples to work and earn vouchers) is important in the initiation of abstinence in the study population.
This research is being done to evaluate if NRP104 is a safe drug. The other purpose is to learn if NRP104 produces a high and any other effects like amphetamine and other stimulant drugs that are abused. This information will give some indication if NRP104 can be abused. NRP104 is an investigational drug. This means that it has not been approved by the U.S. Food and Drug Administration (FDA). Healthy people, between the ages of 18 and 55 with histories of substance abuse that include stimulant drugs, may join. Amphetamines are drugs that are used most often to treat attention deficit hyperactivity disorder (ADHD) in children, to treat narcolepsy (excessive sleepiness) and for weight loss.