Medication Treatment for Opioid Use Disorder in Expectant Mothers: Conceptual Model Assessments...
Opioid-Related DisordersDrug Addiction6 moreThis is a sub-study of NIDA CTN Protocol 0080: Medication Treatment for Opioid Use Disorder in Expectant Mothers (MOMs; Unique protocol ID: 2019-0429-1). Participants in MOMs will be offered the opportunity to enroll in this sub-study, which is designed to evaluate conceptual models of the mechanisms by which extended-release buprenorphine (BUP-XR), may improve mother-infant outcomes, compared to sublingual buprenorphine (BUP-SL). The additional data collected in this sub-study will be combined with data from the main MOMs trial. It is hypothesized that: (1) the buprenorphine blood levels will vary, depending on which formulation of buprenorphine was received, (2) the variation in buprenorphine blood levels will be associated with fetal behavior (including fetal heart rate variability) (3) the variation in buprenorphine blood levels will be associated with differences in mother outcomes (including medication adherence and illicit opioid use) (4) the variation in buprenorphine blood levels and in fetal behavior will be associated with infant outcomes (including neonatal opioid withdrawal syndrome and infant development).
Medication Treatment for Opioid Use Disorder in Expectant Mothers
Opioid-Related DisordersDrug Addiction6 moreThe primary objective of this study is to evaluate the impact of treating opioid use disorder (OUD) in pregnant women with extended-release buprenorphine (BUP-XR), compared to sublingual buprenorphine (BUP-SL), on mother and infant outcomes. The primary hypothesis is that the BUP-XR group will not have greater illicit opioid use than the BUP-SL group during pregnancy (non-inferiority).
Kratom Use Disorder Management Using Clonidine and/or Buprenorphine
Withdrawal SyndromeKratom is used for stimulant, analgesic, anxiolytic, and sedative effects. There is inadequate knowledge about Kratom addiction. Kratom withdrawal may be treated like opioid withdrawal. Prospective observational crossover study of consenting adults who are undergoing Kratom withdrawal management. On alternate weeks, each patient receives treatment using Buprenorphine 5cmg/hr patch; or Clonidine tablet 0.1mg 4hourly; or combined Clonidine tablet 0.1mg 4hourly + Buprenorphine 5cmg/hr patch. Each patient will undergo treatment for 12 weeks. Patients will use Subjective Opiate Withdrawal Scale (SOWS) to collect data on daily basis. SOWS is a patient-administered tool that is used to record the severity and presence of opiate withdrawal. The physician will also use Clinical Opiate Withdrawal Scale (COWS) to collect data on weekly basis. COWS is a clinician-administered tool that is used to record the signs of opiate withdrawal. A change in the COWS and SOWS scores by 6-points is considered significant.
Glucocorticoid Withdrawal Syndrome in Patients With Treated Cushing Syndrome
Cushing SyndromeCushing syndrome (CS) is an endocrine disorder caused by chronic exposure to glucocorticoid (GC) excess. Endogenous CS has an estimated incidence of 0.2 to 5.0 cases per million per year and prevalence of 39 to 79 cases per million in various populations. CS usually affects young women, with a median age at diagnosis of 41.4 with a female-to-male ratio of 3:1. Following a curative surgery for CS, patients develop adrenal insufficiency and require GC replacement postoperatively until the hypothalamic-pituitary-adrenal (HPA) axis recovery occurs. Factors, such as age, gender, BMI, subtypes of CS, duration of symptoms, clinical and biochemical severity and postoperative GC dose have been reported to affect the HPA recovery in small retrospective studies. Glucocorticoid withdrawal syndrome (GWS) is a withdrawal reaction due to decrease in supraphysiological GC concentrations, which occurs after a successful surgery of CS. Glucocorticoid withdrawal syndrome (GWS) is under-recognized entity in patients undergoing curative surgery for endogenous Cushing syndrome. In this study we aim to determine pre- and post-surgical predictors of the duration and severity of glucocorticoid withdrawal in patients undergoing a curative surgery for cortisol excess and assess the effect of MUSE intervention on GWS severity in patients undergoing curative surgery for CS as compared to standard of care.
Metabolism of Chlordiazepoxide in the Treatment of Alcohol Withdrawal Symptoms
Alcohol WithdrawalThe aim of this study is to elucidate if CYP-phenotypes, variations in CYP-genotypes and dose of chlordiazepoxide is correlated to chlordiazepoxide plasma concentrations in patients admitted to Intensive Care or High Dependency Units due to either respiratory insufficiency and/or agitation while treated for alcohol withdrawal symptoms.
MicroRNA Biomarkers for Neonatal Opioid Withdrawal Syndrome
Neonatal Opioid Withdrawal SyndromeNeonatal Abstinence SyndromeInfants with neonatal abstinence syndrome (NAS) experience prolonged hospital stays and poor neurodevelopmental outcomes, in-part because of the lack of accurate, individualized, biologic assessments available to manage this increasingly common medical condition. The proposed study will define the molecular mechanisms that regulate the response to opioid withdrawal in the developing brain by focusing on three candidate microRNAs (let-7a, miR-146a, miR-192) that have been shown to respond to opioid exposure in animal models and adults, and are impacted in both my preliminary study of infants with NAS, and my human neural progenitor cell (NPC) design of opioid withdrawal. By determining the mechanism through which microRNAs impact NPC differentiation in opioid withdrawal, and determining whether exosomal salivary microRNA levels predict treatment dose and neurodevelopmental outcomes in infants with NAS, this study will enhance our knowledge of NAS-related biology and identify potential biomarkers that could improve medical care for this important medical condition.
Pregabalin Plus Lofexidine for the Outpatient Treatment of Opioid Withdrawal
Opiate Withdrawal SyndromeOpioid UseA placebo-controlled trial in which male and female outpatients with an opioid use disorder who express interest in extended-release injectable naltrexone (XR-NTX) are randomized 1:1 to lofexidine/pregabalin or lofexidine/pregabalin placebo for withdrawal management and offered XR-NTX if after completing withdrawal.
Novel Use of Probenecid to Alleviate Symptoms of Opioid Withdrawal
Chronic PainDrug Dependence of Morphine Type2 moreThe proposed clinical trial will address the problem of opioid withdrawal. Opioids are essential for pain-relief in the short term, but their continued use is associated with a host of adverse effects. People living with chronic pain who were initiated on opioid therapy now find themselves with a major life-changing problem - dependence on opioid medications. Opioid withdrawal symptoms are a key barrier to decreasing or stopping their opioid medication. Currently, there are few medications that ameliorate the symptoms of opioid withdrawal. This problem is a major part of the opioid crisis in Canada, and impacts people across all demographics and socioeconomic status. A misconception is that only individuals with opioid use disorder are susceptible to opioid withdrawal; on the contrary, appropriate use of prescription opioids to manage pain can lead to significant symptoms of opioid withdrawal when it is reduced or stopped. Patients in Alberta who are at risk for opioid withdrawal, either from prescribed use or misuse will be primarily impacted by this trial. The investigators have recently explored the underlying causes of opioid withdrawal and identified an important target in the spinal cord that is responsible for producing withdrawal symptoms in rats and mice. The target, a protein called pannexin-1 (Panx1), is located throughout the body, specifically in the brain and spinal cord. Using sophisticated biochemical, genetic, and pharmacological techniques, the investigators demonstrated how Panx1 on immune cells is implicated in the production of opioid withdrawal symptoms after cessation of fentanyl and morphine in opioid dependent rodents. The investigators then attenuated these symptoms of withdrawal using probenecid, a drug which inherently blocks Panx1 activity. Because probenecid is a safe and clinically available drug, the findings could be immediately translated into clinical therapy to support people who are struggling with the symptoms of opioid withdrawal and provide clinicians with a safe and effective option for caring for this population.
Nicotine Withdrawal and Reward Processing
Cigarette SmokingNicotine Dependence1 moreThis study is designed to find out how smoking affects the way the brain responds to pleasure and how this impacts smokers' behavior. Participants will complete three sessions. The first session will be a screening and training visit to determine final eligibility. Eligible participants will work with a researcher to develop brief scripts about times when they smoke and do other activities. Next, participants will attend two magnetic resonance imaging (MRI) scans - one after abstaining from smoking for 24 hours and the other after smoking as usual. After the second MRI, participants will answer questions on their phone every day for two weeks.
ACT NOW Longitudinal Study: Outcomes of Babies With Opioid Exposure Study
Neonatal Opioid Withdrawal SyndromeThe objective of this longitudinal cohort study is to quantify the effects of antenatal opioid exposure on the trajectory of brain development over the first 2 years of life, examine associations with developmental and neurobehavioral outcomes, and explore how specific factors (differing antenatal and postnatal exposures, severity of neonatal opioid withdrawal, maternal stress/depression/parenting) modify these effects