Opioid-related clinical outcomes and associated healthcare costs following abuse/misuse of oxycodone formulations: A HEOR analysis from real-world data.

Objective: The United States (US) opioid epidemic is a continued burden on the healthcare system and on the lives of individuals affected by the consequences of opioid abuse/misuse. The objective of this study was to use real-world data from intentional abuse/misuse exposures managed by US poison centers to compare clinical outcomes and quantify healthcare costs among three study cohorts: -exposures that involved Xtampza ER®, other oxycodone extended-release (ER), and oxycodone immediate-release (IR).

Study Design: A real-world, observational study.

Intranasal Use of Prescription Stimulants Among Adults Aged 18 to 30: Results From A Crowdsourcing Platform.

Objective: Few studies of prescription stimulant non-oral, non-medical use (NMU) (defined by use not as prescribed) have been conducted in adults beyond the college population. The purpose of this study was to characterize prescription stimulant non-oral use, specifically intranasal (IN) use (snorting) in young adults.

Method: Amazon's MTurk platform was used to recruit participants for an online survey.

Characterizing the Experience of Tapentadol Nonmedical Use: Mixed Methods Study.

Background: The prevalence of abuse, diversion, and web-based endorsement of tapentadol (extended-release [ER], immediate-release [IR]) has been characterized as low compared with other prescription opioids. Little is known about individual experience with tapentadol nonmedical use (NMU).

Objective: This study aims to pilot web-based survey technologies to investigate the motivation for tapentadol NMU, sources of procurement, routes of administration, tampering methods, doses used, and impressions of tapentadol products (Nucynta and Nucynta ER).

Characterizing prescription stimulant nonmedical use (NMU) among adults recruited from Reddit.

Objective: Increased prescription stimulant nonmedical use (NMU) is part of a growing polysubstance use landscape. The purpose of the present study was to characterize prescription stimulant NMU among adults reporting past 5-year non-oral prescription stimulant NMU.

Methods: Adults who reported non-oral prescription stimulant NMU within the last 5 years were recruited by banner ads placed on the Reddit website between February and September 2019.

Characterizing Pathways of Non-oral Prescription Stimulant Non-medical Use Among Adults Recruited From Reddit.

Prescription stimulant non-medical use (NMU) is a national predicament. While the risks of prescription stimulant NMU have been considered, less is known about non-oral use. To focus on this gap, a sample of adults with non-oral prescription stimulant NMU within the last 5-years was recruited.

Prescription Stimulant Nonmedical Use Among Adolescents Evaluated for Substance Use Disorder Treatment (CHAT™).

The purpose of the present study was to characterize prescription stimulant non-medical use (NMU) in adolescents between the ages of 13 and 18 years seeking treatment for substance use disorder (SUD) with the Comprehensive Health Assessment Tool for Teens (CHAT™). Adolescents being evaluated for SUD treatment between Q1 2010 and Q3 2017 ( = 20,189) completed the CHAT™. About 4.

Evaluation of Abuse and Route of Administration of Extended-Release Tapentadol Among Treatment-Seeking Individuals, as Captured by the Addiction Severity Index-Multimedia Version (ASI-MV).

Background: Tapentadol is a molecule incorporating mu opioid receptor agonism and norepinephrine reuptake inhibition to provide analgesia, with the potential for a lower incidence of gastrointestinal side effects than full mu opioid agonists. Postmarketing surveillance of tapentadol as an active pharmaceutical ingredient has consistently revealed low levels of abuse and diversion.

Objective: The purpose of the present study was to further characterize the abuse liability of tapentadol extended-release (ER) by evaluating the prevalence of past 30-day tapentadol ER abuse and reported routes of administration as compared with ER opioids with Food and Drug Administration (FDA) abuse-deterrent labeling ("ADF opioids") and ER opioids without FDA abuse-deterrent labeling ("non-ADF opioids").

Antagonists in the medical management of opioid use disorders: Historical and existing treatment strategies.

Background And Objectives: Opioid use disorder (OUD) is a chronic condition with potentially severe health and social consequences. Many who develop moderate to severe OUD will repeatedly seek treatment or interact with medical care via emergency department visits or hospitalizations. Thus, there is an urgent need to develop feasible and effective approaches to help persons with OUD achieve and maintain abstinence from opioids.

Assessment of Tapentadol API Abuse Liability With the Researched Abuse, Diversion and Addiction-Related Surveillance System.

Unlabelled: Tapentadol, a Schedule II opioid with a combination of µ-opioid activity and norepinephrine reuptake inhibition, is used for the management of moderate to severe acute and chronic pain. Its dual mechanism of action is thought to reduce opioid-related side effects that can complicate pain management. Since approval, tapentadol has been tracked across multiple outcomes suggesting abuse liability, and a pattern of relatively low, although not absent, abuse liability has been found.

Changes in drug use patterns reported on the web after the introduction of ADF OxyContin: findings from the Researched Abuse, Diversion, and Addiction-Related Surveillance (RADARS) System Web Monitoring Program.

Unlabelled: This qualitative study summarizes information that individuals shared online about use of OxyContin following the August 2010 introduction of the abuse deterrent formulation (ADF).

Purpose: The primary objective was to study online posts that endorsed continued use of OxyContin or a switch from OxyContin to another formulation of oxycodone or another substance altogether following the introduction of the ADF. A secondary objective was to determine whether posts revealed that the ADF led to cessation of OxyContin use.

The effects of ibudilast, a glial activation inhibitor, on opioid withdrawal symptoms in opioid-dependent volunteers.

Glial activation is hypothesized to contribute directly to opioid withdrawal. This study investigated the dose-dependent effects of a glial cell modulator, ibudilast, on withdrawal symptoms in opioid-dependent volunteers after abrupt discontinuation of morphine administration. Non-treatment-seeking heroin-dependent volunteers (n = 31) completed the in-patient, double-blind, placebo-controlled, within-subject and between-group study.

Interviewing and Urine Drug Toxicology Screening in a Pediatric Pain Management Center: An Analysis of Analgesic Nonadherence and Aberrant Behaviors in Adolescents and Young Adults.

Objectives: Many adolescents and young adults report having chronic pain. Urine drug toxicology (UDT) is not routinely used in the pediatric pain management population, despite more routine use in adults with pain, particularly those prescribed opioids. As a first step toward establishing monitoring practices in pediatric and adolescent pain management, the present study evaluated the role of UDT in conjunction with a standard clinical interview in identifying the rate of adherence to an established analgesic regimen.

Abuse potential of intranasal buprenorphine versus buprenorphine/naloxone in buprenorphine-maintained heroin users.

In spite of the clinical utility of buprenorphine, parenteral abuse of this medication has been reported in several laboratory investigations and in the real world. Studies have demonstrated lower abuse liability of the buprenorphine/naloxone combination relative to buprenorphine alone. However, clinical research has not yet examined the utility of the combined formulation to deter intranasal use in a buprenorphine-maintained population.

Comparison of a drug versus money and drug versus drug self-administration choice procedure with oxycodone and morphine in opioid addicts.

This double-blind, placebo-controlled study investigated the effects of oral morphine (0, 45, 135 mg/70 kg) and oral oxycodone (0, 15, 45 mg/70 kg) on buprenorphine-maintained opioid addicts. As a 3: 1 morphine : oxycodone oral dose ratio yielded equivalent subjective and physiological effects in nondependent individuals, this ratio was used in the present study. Two self-administration laboratory procedures - that is, a drug versus money and a drug versus drug procedure - were assessed.

Effects of acute oral naltrexone on the subjective and physiological effects of oral D-amphetamine and smoked cocaine in cocaine abusers.

Despite the prevalent worldwide abuse of stimulants, such as amphetamines and cocaine, no medications are currently approved for treating this serious public health problem. Both preclinical and clinical studies suggest that the opioid antagonist naltrexone (NTX) is effective in reducing the abuse liability of amphetamine, raising the question of whether similar positive findings would be obtained for cocaine. The purpose of this study was to evaluate the ability of oral NTX to alter the cardiovascular and subjective effects of D-amphetamine (D-AMPH) and cocaine (COC).

Buprenorphine/naloxone as a promising therapeutic option for opioid abusing patients with chronic pain: reduction of pain, opioid withdrawal symptoms, and abuse liability of oral oxycodone.

Few studies have examined abuse of prescription opioids among individuals with chronic pain under buprenorphine/naloxone (Bup/Nx) maintenance. The current 7-week inpatient study assessed oral oxycodone self-administration by patients with chronic pain who had a history of opioid abuse. Participants (n=25) were transitioned from their preadmission prescribed opioid to Bup/Nx.

Nabilone decreases marijuana withdrawal and a laboratory measure of marijuana relapse.

Few individuals seeking treatment for marijuana use achieve sustained abstinence. The cannabinoid receptor agonist, Δ(9)-tetrahydrocannabinol (THC; dronabinol), decreases marijuana withdrawal symptoms, yet does not decrease marijuana use in the laboratory or clinic. Dronabinol has poor bioavailability, which may contribute to its poor efficacy.

A comparison among tapentadol tamper-resistant formulations (TRF) and OxyContin® (non-TRF) in prescription opioid abusers.

Aims: To examine whether tamper-resistant formulations (TRFs) of tapentadol hydrochloride extended-release (ER) 50 mg (TAP50) and tapentadol hydrochloride 250 mg (TAP250) could be converted into forms amenable to intranasal (study 1) or intravenous abuse (study 2).

Design: Randomized, repeated-measures study designs were employed. A non-TRF of OxyContin® 40 mg (OXY40) served as a positive control.

Predictors of marijuana relapse in the human laboratory: robust impact of tobacco cigarette smoking status.

Background: Few marijuana smokers in treatment achieve sustained abstinence, yet factors contributing to high relapse rates are unknown.

Methods: Study 1: data from five inpatient laboratory studies assessing marijuana intoxication, withdrawal, and relapse were combined to assess factors predicting the likelihood and severity of relapse. Daily, nontreatment-seeking marijuana smokers (n = 51; 10 ± 5 marijuana cigarettes/day) were enrolled.

A human laboratory study investigating the effects of quetiapine on marijuana withdrawal and relapse in daily marijuana smokers.

Marijuana withdrawal contributes to the high relapse rates in individuals seeking treatment for marijuana-use disorders. Quetiapine, an atypical antipsychotic, reduces characteristic symptoms of marijuana withdrawal in a variety of psychiatric conditions, including mood lability, sleep disruption and anorexia. This human laboratory study investigated the effectiveness of quetiapine to decrease marijuana withdrawal and relapse to marijuana use in non-treatment-seeking marijuana smokers.

Assessment of a formulation designed to be crush-resistant in prescription opioid abusers.

Background: The extent of prescription opioid abuse has led to the development of formulations that are difficult to crush. The purpose of the present studies was to examine whether experienced prescription opioid abusers (individuals using prescription opioids for non-medical purposes regardless of how they were obtained) were able to prepare a formulation of oxymorphone hydrochloride ER 40 mg designed to be crush-resistant (DCR) for intranasal (study 1) or intravenous abuse (study 2), utilizing a non-crush-resistant formulation of oxymorphone (40 mg; OXM) as a positive control.

Methods: No drug was administered in these studies.

Effects of repeated oxycodone administration on its analgesic and subjective effects in normal, healthy volunteers.

Tolerance to the analgesic effects of opioids has been demonstrated in laboratory animals after repeated drug administration; yet, this effect has been studied less frequently under controlled laboratory conditions in humans. This within-subject, double-blind, placebo-controlled study was designed to determine whether tolerance developed to the analgesic, subjective, and physiological effects of the commonly prescribed opioid oxycodone when it was administered daily for 5 days. The effects of oxycodone (0, 5, and 20 mg/70 kg, orally) were compared, using a within-session cumulative dosing procedure, on the first and fifth days of the 'daily' dosing phase to assess for tolerance; active oxycodone was administered on the second and fourth days of the daily dosing phase.

Evaluation of the reinforcing and subjective effects of heroin in combination with dextromethorphan and quinidine.

Objective: Studies have suggested that the N-methyl-D-aspartate antagonist dextromethorphan may be useful in the treatment of opioid dependence.

Design: This double-blinded, placebo-controlled inpatient study evaluated the effects of 0, 30, and 60 mg of dextromethorphan and quinidine (DMQ) on the reinforcing and subjective effects of heroin in recently detoxified heroin abusers.

Participants: Nine heroin-dependent participants were admitted and then detoxified from heroin over the course of several days.

Impact of in-patient research participation on subsequent heroin use patterns: implications for ethics and public health.

Aims: Research on drug dependence often involves the administration of drugs of abuse to experienced drug users under controlled laboratory conditions. The primary objective of this study was to assess whether participation in such research alters the frequency of heroin use by non-treatment-seeking opioid-dependent volunteers after study completion.

Design: Data were examined from four in-patient studies involving controlled opioid administration.

Improving temporal efficiency of outpatient buprenorphine induction.

Buprenorphine induction poses a barrier for physician adoption of office-based opioid dependence treatment. We conducted a retrospective chart review of the first 41 patients inducted at a newly established outpatient treatment program to examine the induction process and determine strategies associated with greater induction efficiency. Timed withdrawal scales, medication log, and notes enabled reconstruction of the initial day of buprenorphine treatment.