View clinical trials related to Substance-Related Disorders.
Filter by:This is an observational, naturalistic study that aims to assess whether people with different histories of recreational or therapeutic illicit substance use (or no history at all) will differ in terms of their personalities.
Tobacco use is a risk factor for at least 20 types of cancer and remains the leading preventable cause of cancer in Canada. Smoking cessation is an important cancer prevention strategy for the close to 2 million Canadian women who currently smoke. However, findings from controlled trials and real-world clinical settings indicate that women have greater difficulty achieving abstinence following a quit attempt than men. There is some evidence that hormonal levels and fluctuations throughout the menstrual cycle (MC) may contribute to the greater difficulty women experience when trying to quit smoking. In this study, the start of a quit attempt using nicotine replacement therapy (NRT) will be targeted to specific phases of MC. It was hypothesized that starting a quit attempt during the first half of MC (follicular phase) will result in increased quit success compared to starting during the second half of MC (luteal phase) or the usual practice of not targeting quit start date to MC phase.
Aims: To characterize the pattern of cannabis and tobacco use and withdrawal symptoms in people who start treatment for cannabis use disorders (exclusive cannabis, concurrent and/or simultaneous with various tobacco products) through an aplication game and considering the type of users. Methodology: Mixed-methods research composed of three studies. Study I: qualitative participatory action study aimed at exploring the experiences and preferences of the cannabis users on the use of apps. This information will be instrumental in the co-design of the app. Study II: prospective longitudinal study aimed to establish consumption patterns and transitions between substances and to validate the scale of cannabis withdrawal symptoms in the Spanish population. Sample size: expected RR=1.20, α =0.05, β= 0.20, losses= 20% (n=282). Study III: qualitative study to explore participants' experiences during the process of quitting cannabis and / or tobacco. Expected results: Characterization and prediction of variables that influence cannabis and tobacco cessation/ reduction and describe withdrawal symptoms according to consumption patterns with aim of improving the design of future interventions.
Head and neck cancers are a source of complications and after-effects related to the disease and treatment. These cancers and their treatment alter the quality of life of patients and generate pain with physical and psychological components. Chronic pain affects 36% of patients at 6 months and 30% after this period. These pains are responsible for the consumption of level II and III analgesics in 53% of these patients. At the same time, after the end of treatment, nearly a quarter of patients continued to smoke and half still consumed alcohol at least twice a week. The hypothesis of this research is to investigate the correlation between pain and the continuation of addictions, the occurrence of depressive states, asthenia and the alteration of the patients' global quality of life. The investigators propose a two-center prospective cohort study to evaluate this hypothesis at 6 months after radiotherapy treatment. This study is planned to include 120 patients with a first head and neck cancer whit radiotherapy as part of their treatment sequence. The expected duration of inclusion is 18 months. The identification of factors affecting survival, quality of life and patient compliance is essential to determine appropriate management, particularly by creating appropriate therapeutic education programs.
Opioid use disorder (OUD) remains a major public health problem particularly for mothers in the perinatal period, for whom stress, relapse rates, and risk for overdose are elevated. The perinatal period is characterized by significant neural reorganization that determines outcomes for mothers and infants. OUD is also associated with neural reorganization, specifically neural circuitry implicated in stress regulation and reward processes. Interventions should therefore take advantage of this changing perinatal biology to enhance treatment response by targeting the aberrant neural circuitry compromised by maternal OUD. The investigators have developed and refined an evidence-based intervention for mothers with OUD designed to target these neural mechanisms and enhance the reward of caregiving; however, this has yet to be formally tested. Therefore, the investigators will examine maternal neuroplasticity using high-dense array electroencephalography (EEG) in mothers with OUD in response to our intervention. There will be 1 laboratory visit at pre-treatment, followed by 12 sessions of the evidence-based parenting intervention, and 1 laboratory visit at post-treatment. This study will attempt to validate the importance of taking advantage of the neuroplasticity in the perinatal period to optimize outcomes for mothers with OUD.
This is a pragmatic, open label, randomized controlled trial with 1:1:1 allocation to 12 weeks of: (1) onsite yoga at opioid treatment programs (OTPs), (2) onsite physical therapy (PT) at OTPs, or (3) treatment as usual (TAU). Participants will be 345 individuals with chronic back pain receiving treatment for opioid use disorder (OUD) in community-based OTPs. Through research visits at screening, baseline, and months 1, 2, 3, 6, and 9, the investigators will evaluate pain and opioid use outcomes and implementation outcomes.
This K23 study is an effectiveness-implementation hybrid type I design to determine the effectiveness of Motivational Interviewing at Intake (MII), relative to intake-as-usual on client engagement and mechanisms of engagement among adults seeking outpatient addiction treatment. We also will obtain personnel feedback on the feasibility of implementing MII into standard practice by having personnel from the addiction treatment study sites complete implementation climate measures before Motivational Interviewing (MI) training and post-clinical trial, as well as an individual interview on implementation feasibility post-trial.
Suicide is the 10th leading cause of death for Americans of all ages and more people in the United States now die from suicide than die from car accidents. Although death by firearm remains the most common cause of suicide in the United States, an intentional overdose of substance usage such as prescription opioids accounts for over 5,000 suicides per year. In 2017, more than 70,000 drug overdose deaths occurred, making it the leading cause of injury-related death, and well over half (67.8%) involved opioids. The dramatic increase in opioid overdose raises concerns about their contribution to suicidal outcomes (e.g., suicidal behavior, ideation, and attempts). Abuse of prescription opioids is characterized by the persistence of opioid use despite negative consequences. The neurobiology of opioid abuse involves the mesolimbic dopamine systems as the main neural substrate for opioid reward, and altered dopamine release in this system plays a role in opioid abuse. Moreover, the cortico-striatal system, especially the orbitofrontal cortex (OFC), has been associated with the abuse of many substances, including opioids and alcohol. Structural brain alterations in frontal areas, particularly the OFC, may cause executive control dysfunctions of mood which are highly associated with suicidal ideation. Recent preclinical work has shown that higher input from the OFC to the dorsal striatum (dSTR) is associated with compulsive reward-seeking behavior despite negative effects (e.g., punishment). In this study, the investigators propose that OFC/dSTR connectivity may be one neural differentiator that distinguishes between those who become compulsive users after initial opioid use and those that do not. Moreover, suicidal patients among those who become compulsive users may have higher OFC/dSTR connectivity compared to non-suicidal patients.
Substance Use Disorders (SUD) are often comorbid with psychological trauma, however, the complex interaction between the two is not yet fully understood. Most addiction-specialized professionals do not engage in exploring past traumatic experiences of the patients due to personal, professional, and educational barriers. Therefore, psychological trauma remains highly undetected and its contribution to the development and maintenance of SUD is neglected. This compromises the therapeutic results of most interventions, with relapse rates in SUD still remaining impressively high. EMDR is one of the most effective interventions for Post-Traumatic Stress Disorder (PTSD), and has been applied to other disorders that are often comorbid with trauma, such as psychosis and depression, with promising results. Nevertheless, its application in SUD is still limited. Taken altogether, there is a need to clarify the efficacy of Eye Movement Desensitization and Reprocessing (EMDR) therapy in SUD, as well as the mechanisms of action that mediate its potential therapeutic effects. The aim of this study is to 1) determine the efficacy of EMDR therapy in patients with SUD comorbid with psychological trauma, as well as whether changes in these clinical variables correspond to changes in salivary cortisol levels- a robust marker of the Hypothalamic-Pituitary-Adrenal (HPA) axis; 2) investigate the mechanisms of action of EMDR therapy, paying special attention to the key role that the cerebellum might play in mediating its therapeutic effects.
The purposes of the study are 1) To assess the abuse potential of methylone after controlled administration of a single oral dose of methylone 2) to evaluate subjective and physiological effects of methylone 3) to determine the pharmacokinetics parameters and metabolism of methylone.