View clinical trials related to Drug Use.
Filter by:Cannabis is the most commonly used drug by women during pregnancy with an estimated prevalence of use in Colorado of 5.7%. THC and its metabolites freely cross the placenta and blood-brain barrier to bind with cannabinoid receptors, disrupting the endogenous cannabinoid signaling system during a critical period of development of cortical circuitry structure and function. The density of cannabinoid receptors in the developing brain is high, especially in the limbic areas and prefrontal lobes. Research in animal models suggests synaptic plasticity in the prefrontal lobes as well the amygdala and hippocampus are impacted by the prenatal cannabis exposure; regions associated with both cognitive and emotional control, thus influencing long-term deficiencies in attention and impulsivity. This pilot study will collect preliminary data on the structural impact of in utero cannabis exposure on region-specific morphology and structural connectivity of white matter tracts that connect to the prefrontal lobes and the limbic regions shortly after birth, before confounding by the postnatal environment becomes a major influence.
This randomized controlled trial primarily investigates if a clinical pharmacist intervention can reduce drug-related readmissions among patients >75 years. The intervention targets the transfer between hospital and primary care. In brief, the intervention includes medical chart reviews and patient interviews during a period of 180 days.
The purpose of this study is to develop and test a group-based strategy for preventing high risk outcomes for patrons of nightclubs. Outcomes include overuse of alcohol, use of illicit drugs, drinking/drug use and driving (or riding with impaired driver), experiences of physical aggression, and experiences of sexual harassment/aggression. By working with the social group, the investigators use a peer-base approach for reducing high risk problems that can occur in nightclub settings.
The purpose of this randomized study is to determine whether a community-based test and treat model of hepatitis C (HCV) care delivery will be superior to the usual care practice of referral to specialist clinics for the outcomes of sustained virologic response at 12 weeks after treatment and initiation of HCV treatment for persons who inject drugs (PWID) between ages 18 and 29 who are naïve to HCV treatment
The aim of this study is to describe demographic, clinical, etiological characteristic and evolution of drug addict's chronic wounds .
Despite increasing knowledge about and use of PrEP nationally, HIV continues to have disproportionate impact among cisgender men and transgender persons who have sex with men and transgender persons (MSM/TG), with methamphetamine (meth)-users being at particularly high risk. Building on their preliminary work, the investigators will pilot text messaging and peer navigation interventions to support PrEP use among meth-using MSM/TG with potential to be cost-effective, scalable, and easily adaptable.
The study aims to assess the effectiveness of a model of hepatitis C screening and integrated care, targeting people who inject drugs (PWIDs) in Hai Phong, Vietnam. In a wider perspective, this model linked to mass screening through repeated Respondent Driven Sampling (RDS) surveys, to simplified treatment protocol, and to large community-based support to improve referral to care, retention in care, adherence to treatment and prevention of reinfection, may have the potential to eliminate HCV among PWIDs in this city.
The purpose of this study is to test the effectiveness and implementation of a brief, integrated behavioral intervention for HIV medication adherence and substance use in the HIV care setting in South Africa. The intervention is specifically designed to be implemented by non-specialist counselors using a task sharing model in local HIV clinics. The behavioral intervention will be compared to usual care, enhanced with referral to a local outpatient substance use treatment program (Enhanced Standard of Care - ESOC) on study endpoints (as described in study endpoint section below).
The aim of the present project is to reveal, using Functional Magnetic Resonance Imaging (fMRI) in drug users, a specific modulation of brain structures and circuits involved in cognitive control (and especially those of inhibitory control) and reward while subjects are performing under the influence of drug-associated cues and in various social contexts. This hypothesis, based on the animal work, is that the subthalamic nucleus (STN) should play a critical role in these processes. Addictive behaviour can be seen as a loss of control resulting from reduced inhibitory control, leading to compulsive drug use. These disorders are known to be associated with a hypoactivation of specific frontal regions such as the anterior cingulate cortex or the prefrontal cortex. For the present experiment, it is chosen to use a procedure well established for neurophysiological and behavioural assessment of inhibitory processes : the " stop-signal reaction time task ". This task requires to inhibit a motor response (press a button) at the onset of a stop signal (a tone) that occurs while the response is already engaged. In this task associated with fMRI, it was previously shown that the STN is involved in the control of inhibition. These results confirm our data in the rat, and especially those showing that STN lesions block the ability to stop. The stop signal task will thus be appropriate to study the effect of the social context on inhibitory processes in a population of cocaine users. In cocaine abusers, it was shown that inhibitory processes are affected. Here we aim at testing this population of subjects while they perform the stop task, but adding an implicit cognitive load induced by visual cues associated or not with cocaine intake. Since it want to assess the influence of a peer on both the performance and the associated cerebral activities, it will also control the presence of a peer observer in the procedure. There will thus be three experimental factors, one inter-subject factor (the experimental group, cocaine users or controls) and two intra-subject factors (cocaine associated or neutral cue; presence of a peer observer). The "stop-signal" task should induce increased activity of the STN that should be modulated by the cocaine-associated cues and by the presence of a peer.
Hypothesis: Medication Review with follow-up can improve clinical, health related quality of life and economic outcomes. To prove this hypothesis a cluster randomized controlled trial will be held in primary care centres of the public health system of Chile. Patients of the cardiovascular disease prevention program, older than 65 years and with poly pharmacy (more than 5 drugs) will be recruited. Control group will receive usual care and the intervention arm will have medication review consultations by a pharmacist every 4 months for one year. Clinical interventions will be made with physician authorisation. Participating pharmacist will be trained in cardiovascular prevention pharmacotherapy in the elderly, interview skills and educational techniques. A practice change facilitator will assist the pharmacist in any matters regarding the methodology and will asses barriers and facilitators to the implementation of the medication review with follow-up service. A personalised plan will be developed for every pharmacist. Clinical outcomes (blood pressure, HbA1c, LDL cholesterol, overall cardiovascular risk, among others), number of medications, adherence rate and health-related quality of life will be evaluated. A cost-utility analysis will be made through the health ministry of Chile perspective.