Active clinical trials for "Substance-Related Disorders"

Pathological internet use is a blanket term for problematic behavior types (e.g. uncontrolled gaming, cyber pornography, cyber mobbing and excessive use of social media): all perpetrated through the internet. There is little documentation or research on interdependencies/interplay between problematic internet and/or media use and child-adolescent disturbances. Very few clinical examples of syndromes like attention deficiency/hyperactivity (ADHS), anxiety disorder or affective disturbances associated with pathological media/internet use, or gaming, are found in literature.

The purpose of this study is to estimate the observed incidence of the health outcomes (suicide attempt or ideation, suicide ideation, suicide attempt, psychosis, and substance abuse) in a cohort of participants diagnosed with attention deficit hyperactivity disorder (ADHD) who are first-line new therapy with methylphenidate monotherapy, lisdexamfetamine monotherapy, atomoxetine monotherapy, amphetamine/dextroamphetamine combo therapy, and either methylphenidate/lisdexamfetamine/atomoxetine monotherapy or amphetamine/dextroamphetamine combo therapy during the 'on treatment' period from 7 days after the start of exposure through the end of exposure (treatment discontinuation for at least 60 days) and the 'intent to treat' period from 7 days after start of treatment to end of continuous observation; and to compare the hazards of outcomes (suicide attempt or ideation, suicide ideation, suicide attempt, psychosis, and substance abuse) in the target cohort (participants diagnosed with ADHD who are first-line monotherapy new users of methylphenidate) versus each comparator cohort (patients diagnosed with ADHD who are first-line newly exposed to lisdexamfetamine monotherapy, atomoxetine monotherapy, amphetamine/dextroamphetamine combo therapy) during the 'on treatment' period from 7 days after the start of exposure through the end of exposure (treatment discontinuation for at least 60 days) and the 'intent to treat' period from 7 days after start of treatment to end of continuous observation.

Background: - New research on genetics and the human genome has helped to identify certain genes that affect specific parts of the brain, including the parts that may be involved in drug use and dependency. Researchers are interested in studying both genetic information and brain activity to better understand variations in brain function among individuals. Objectives: - To study brain activity in conjunction with specific genetic information provided by healthy volunteers including smokers, non-smokers, people with drug dependence, and those who do not have any dependence on any substance. Eligibility: - Healthy volunteers between 18 and 50 years of age. Design: This is an 8 10 hour study which may be completed in 1, 2, or 3 visits. Participants will complete questionnaires about emotional and psychological responses to different situations, including stressful situations. Participants will have a training session in a mock (fake) scanner to practice tasks to be completed in the real scanner. Participants will have the following two types of magnetic resonance imaging (MRI) scans in one scan session of the brain: A structural MRI scan to provide basic information about each participant's brain. A functional MRI scanning session, in which participants will perform a memory task to provide information about brain activity. Participants will provide blood samples for research and testing....

This study was a survey of drug users who obtain buprenorphine from the black market and have used buprenorphine during the last month. Subjects were surveyed at various locations (streets, railway stations, etc.) with a few simple questions in order to describe the use of buprenorphine in this "out of care" population.

Previous studies by this team of investigators has determined that male infants are more likely to display more severe neonatal abstinence syndrome (NAS) as a result of maternal opioid use during pregnancy (Jansson, 2007)and there is appears to be a gender-related biologic vulnerability to NAS expression (Jansson, 2009, submitted). The proposed study explores the relationship between fetal gender and substance abuse treatment outcomes among a population of women in comprehensive substance abuse treatment to explore the possibility of a psychosocial vulnerability among drug exposed male fetuses as opposed to female fetuses. Women in substance abuse treatment are a group at high risk for current exposure to violence, usually at the hands of significant others, and having a history of sexual abuse as a child, usually resulting from contact with a male family member. Therefore, they often have difficult relationships with men. At the Center for Addiction and Pregnancy (CAP), a 2006 study revealed that among a group of 715 pregnant women, reports of the exposure to violence was very high. Their rates of lifetime abuse ranged from 72.7% for physical abuse to 44.5% for sexual abuse. Rates of abuse remained high during their current pregnancy, ranging from 20% for physical abuse to 7.1% for sexual abuse (Velez, 2006). The abuse was very often at the hands of partners or other male family member perpetrators. We hypothesize that women carrying male fetuses will be less likely to remain complaint in drug treatment or abstinent from illicit drug use, while women carrying female fetuses may be more likely to remain drug abstinent and treatment compliant. If supported, this theory has the potential to inform fetal gender specific treatment for pregnant drug dependent women. Additionally, we seek to support the previously documented link between male gender and more severe expression of NAS, and explore the relationship between other maternal prescribed drug use (i.e. psychotropic medications) and severity of NAS expression.

Hepatitis C viral infection is common among opioid addicts in Zurich, Switzerland. The majority undergoes a maintenance treatment with methadone, heroin or buprenorphine. While stabilized by an opioid maintenance treatment (OMT)chronic hepatitis C can be treated with pegylated interferon plus ribavirin. As not sufficiently known, the results are comparable to the results of the treatment of nonaddicts. Our crossectional study investigates how many patients undergoing OMT are adequately investigated concerning hepatitis C. If not, why are they not adequately investigated and treated? Representative data are collected in the local clinics and medical practices involved in OMT in the Kanton of Zurich. The patients files are revised and the involved doctors are asked through a structured interview.

The primary aims of this study are to assess: The inter-rater and test-retest reliability of the MINI-KID The validity of the standard MINI-KID interview in relation to the parent rated pencil/paper version (MINI-KID-P) and th longer clinician rated "Schedule for Affective Disorders and Schizophrenia for School Aged Children-Present and Lifetime Version (K-SADS-PL) and "expert opinion" (when available). Secondary aims will include evaluating the concordance between: The Children's Global Assessment Scale (a required part of the K-SADS) with the clinician-rated Sheehan Disability Scale (to be administered with the MINI-KID) as a measure of illness severity.

This is a prospective cohort study of drug addicts confined in Zhejiang rehabilitation centers. The primary aim of this study is to investigate the association between diet and health status among drug addicts. The second aim is to characterize the continuous blood glucose response to dietary intakes over 2 weeks. The third aim is to describe the dynamic changes of gut microbiota at three time points in drug addicts during compulsory detoxification and to evaluate the association between gut microbiota, diet and addiction severity.

The current containment linked to COVID-19 will have consequences for people suffering from addiction and there is a risk of overdoses when the containment ends. So the investigators hypothesize that this health crisis is an opportunity to develop risk reduction and access to care for vulnerable people who lives with an addiction. The main objective of this study is to describe the changes in the psychoactive substances consumption during the containment in people suffering from addiction. The secondary objectives are to describe the evolution at 1 month from the end of the containment of problematic consumption and the level of access to care of these users

Chemsex refers to the use of psychoactive drugs in a sexual context, mainly cathinones, GHB/GBL, methamphetamine, cocaine and ketamine. This can cause infectious or psychiatric complications, addictions, and often goes with high risk sexual behaviours. Recent studies have highlighted the relationship between personality disorders, substance use disorders and risky sexual behaviours. It is important to understand the factors associated with chemsex in order to offer adapted prevention and care plans. The study hypothesis is that personality disorders, evaluated with the PDQ-4+ questionnaire, are more frequent among man having sex with other men with a substance use disorder linked to chemsex than among man having sex with other men who have never practised chemsex.