Audit of appropriate consideration of anti-craving medication following alcohol detoxification in a north east addictions service

AimsNICE guidelines recommend that all patients who undergo a successful alcohol detoxification programme should be considered for treatment with acamprosate or oral naltrexone. This audit studied the proportion of patients considered for acamprosate or naltrexone treatment in a North-East Addictions Service. Primary aimTo explore whether naltrexone/acamprosate had been considered for each patient completing alcohol detoxification.Secondary aims what proportion of those offered agreed to be prescribed acamprosate/naltrexonewhether these patients were being adequately followed up in terms of prescriptionBackgroundThere is a significant evidence base for both naltrexone and acamprosate in the maintenance of abstinence in patients with alcohol addiction. NICE recommends the consideration of both medications for patients following successful alcohol detoxification from alcohol. The addictions service at Plummer Court in Newcastle upon Tyne has a comprehensive pathway for alcohol detoxification patients, which involves multiple reviews by keyworkers and medics. The attendance at these appointments is often poor, and it is often unclear whether these patients have been offered anti-craving medication.MethodA list of patients referred for inpatient or outpatient alcohol detoxification between June to August 2018 (n = 23) was curated. The progress notes were reviewed for any evidence that there had been clinical consideration of acamprosate/naltrexone. If evidence was found that the discussion had taken place, the notes were further scrutinised to assess if the client had accepted a prescription. The clinical documentation was further reviewed to see if follow-up for anti-craving medication was in place.ResultThere was evidence that anti-craving medication had been considered in 47% of patients during the treatment processIn all but one case, acamprosate was offered rather than naltrexoneIn cases where medication was offered, it was accepted in all but one caseAnti-craving medication was universally well toleratedThere was considerable difficulty with assessing who was following up the prescription. On scrutiny of the notes, several GPs had contacted addictions services stating that they would not prescribe acamprosate because of local policy prohibiting its prescription from Primary Care (this policy is in fact no longer current)ConclusionPractice changed to offer patients monthly follow-up with addictions services for six monthsTemplate letter sent out to GPs with discharge from addictions requesting acamprosate prescription, outlining current policy and offering support if GPs not comfortableAudit presented to medical team. Treatment pathway amended to specify medical team's role in offering anti-craving medication at initial appointmentRe-audit in six months

Veteran adherence to oral versus injectable AUD medication treatment

Introduction AUD medication treatment has been shown to improve outcomes compared with placebo when confined to per-protocol analysis. The same outcomes, however, have not always been maintained in intent-to-treat analysis, thus suggesting adherence may have a significant impact on efficacy outcomes. There is conflicting evidence present in the literature comparing adherence to oral versus injectable AUD pharmacotherapy and a paucity of information in the veteran population on risk factors for low adherence. Methods The primary end point of this retrospective chart review was to determine whether adherence rates differ between oral and injectable AUD treatments in veterans during the first year of treatment (at 3, 6, 9, and 12 months) using the portion of days covered model. Secondary end points were to determine differing characteristics between patients with high versus low adherence and compare alcohol-related readmission rates and discontinuation rates between groups. Results Adherence to injectable extended-release (XR) naltrexone was significantly higher than oral naltrexone at all time points and was significantly higher than disulfiram at 3, 6, and 9 months, but it was not significantly different from acamprosate at any time point. At months 9 and 12, acamprosate had significantly higher adherence compared with oral naltrexone. Patients with higher adherence were seen more frequently in the mental health clinic and had previously tried more AUD medications. The discontinuation rates and alcohol-related admission rates were not significantly different between groups at 1 year. Discussion XR naltrexone may improve adherence rates compared with oral naltrexone or disulfiram, but not acamprosate based on these outcomes. Patients may have increased adherence if they are seen more often in clinic and have trialed more AUD medications.

Naltrexone for cholestatic itch: a systematic review

BackgroundCholestatic itch is caused by intrahepatic liver diseases, such as primary biliary cirrhosis and extrahepatic obstruction of the biliary tree, often caused by tumours. The pathophysiology of cholestatic itch is complex and no single treatment has proved definitive. Naltrexone is an opioid receptor antagonist, which reduces central opioidergic tone, believed to be raised in patients with cholestatic pruritus.AimTo review and assess the efficacy of oral naltrexone for the treatment of cholestatic itch.MethodsSearch of electronic databases, grey literature, clinical trials registries and handsearching for studies including naltrexone for cholestatic itch. Full papers were obtained if relevant and studies graded.ResultsThirteen papers were included in the analysis, including three randomised controlled trials, one controlled clinical trial, one open-label pilot study, seven case reports and one retrospective notes review. All studies found naltrexone to be effective in relieving pruritus. In all five studies performing statistical analysis, naltrexone significantly reduced pruritus compared with baseline. 37% of patients reported side effects, notably opioid withdrawal-type reactions and recurrence of previous pain, from all pathologies.ConclusionsOral naltrexone therapy helps relieve cholestatic itch and although it should be used with caution in patients using exogenous opioids for analgesia, it should be considered when treating refractory pruritus in patients with end-stage liver disease.

Naltrexone treatment for prolonged grief disorder: study protocol for a randomized, triple-blinded, placebo-controlled trial

Background There is a lack of effective pharmacotherapy for prolonged grief disorder (PGD). Evidence suggests that the neurobiology of PGD involves the same circuitry as the reward pathway. Based upon this evidence, we hypothesize that PGD can be conceptualized as a disorder of addiction and therefore could benefit from being treated with medications that are currently used to treat such disorders. One such medication is naltrexone, which is currently used to treat alcohol and opioid dependence. Oral naltrexone was chosen for its mechanism of action, safety, and convenience. The primary aim of this study is to establish the efficacy of using oral naltrexone as a pharmacological treatment for PGD. Specifically, we hypothesize that participants receiving naltrexone will demonstrate reduced PGD symptoms when compared to placebo. Methods/design This is a randomized, placebo-controlled, triple-blinded (to healthcare professionals/study staff, participants, and data analysts) study in which we propose to enroll 48 participants who meet criteria for Prolonged Grief Disorder (PGD). Participants will be randomly assigned to the naltrexone 50 mg oral arm or placebo arm; medications will be over-encapsulated to appear identical. Participants will take their assigned medication for 8 weeks, with clinic visits every 4 weeks to assess symptom severity, social closeness, and adverse reactions. Weekly surveys of Prolonged Grief-13-Revised (PG-13-R) will be used to relate naltrexone use to changes in PGD symptom severity. Follow-up 4 weeks after their last visit will assess the longevity of treatment, as well as any lingering adverse reactions. Discussion This study is the first to investigate the use of oral naltrexone as pharmacological treatment for PGD. The acute and debilitating nature of the disorder, in addition to the increased risk of comorbidities, highlights the need for pharmacological treatment like naltrexone that can act more rapidly, may help those for whom psychotherapy may not be effective, and/or may augment psychotherapy to promote PGD symptom grief resolution. Trial registration ClinicalTrials.govNCT04547985. Registered on 8/31/2020.

NALTREXONE ASSOCIATED SEIZURE: A CASE REPORT

Naltrexone is an opioid antagonist prescribed to treat opioid use disorder and as an anti-craving medication for alcohol use disorder. Gastrointestinal side effects are considered the most common, and liver damage is a serious and rare side effect of naltrexone. In this case report, we describe a 40-year-old patient who developed a seizure after initiating treatment with naltrexone. Although the mechanism is not clear as naltrexone is not a well-known pro-convulsant medication, a few hypotheses for association with seizure have been postulated based on the studies on opioid agonists and similar opioid antagonist naloxone. Based on this case report, we strongly recommend that clinicians should thoroughly assess the risk factors for seizures in patients before using naltrexone and start long-acting injectable naltrexone only after an adequate trial of oral naltrexone to minimize the risk of seizure.

Naltrexone Treatment for Prolonged Grief Disorder: Study Protocol for a Randomized, Triple-Blinded, Placebo-Controlled Trial

BACKGROUNDThere is a lack of effective pharmacotherapy for prolonged grief disorder (PGD). Evidence suggests that the neurobiology of PGD involves the same circuitry as the reward pathway. Based upon this evidence, we hypothesize that PGD can be conceptualized as a disorder of addiction, and therefore could benefit from being treated with medications that are currently used to treat such disorders. One such medication is naltrexone, which is currently used to treat alcohol and opioid dependence. Oral naltrexone was chosen for its mechanism of action, safety, and convenience. The primary aim of this study is to establish the efficacy of using oral naltrexone as a pharmacological treatment for PGD. Specifically, we hypothesize that participants receiving naltrexone will demonstrate reduced PGD symptoms when compared to placebo.METHODS/DESIGNThis is a randomized, placebo-controlled, triple-blinded (to healthcare professionals, participants, and data analysts) in which we propose to enroll 46 participants who meet criteria for Prolonged Grief Disorder (PGD). Participants will be randomly assigned to the naltrexone 50 mg oral arm or placebo arm; medications will be over-encapsulated to appear identical. Participants will take their assigned medication for 8 weeks, with monthly clinic visits to assess symptom severity, social closeness, and adverse reactions. Weekly surveys of Prolonged Grief-13-Revised (PG-13-R) will be used to relate naltrexone use to changes in PGD symptom severity. Follow-up 4 weeks after their last visit will assess the longevity of treatment, as well as any lingering adverse reactions.DISCUSSIONThis study is the first to investigate the use of oral naltrexone as pharmacological treatment for PGD. The acute and debilitating nature of the disorder, in addition to the evidence demonstrating the increased risk of comorbidities, highlights the need for pharmacological treatment like naltrexone that can act more rapidly, may help those for whom psychotherapy may not be effective, and/or may augment psychotherapy to promote PGD symptom grief resolution.TRIAL REGISTRATIONClinicalTrials.gov, NCT04547985. Registered on 8/31/2020, https://clinicaltrials.gov/ct2/show/NCT04547985.

Buprenorphine therapy in the setting of induced opioid withdrawal from oral naltrexone: a case report

Background Patients with opioid use disorder (OUD) frequently present to the emergency department for acute treatment of overdose and withdrawal. Case presentation A 29-year-old male presented to the emergency room after intravenous heroin use followed by accidental ingestion of naltrexone. He was treated with buprenorphine with significant improvement in his Clinical Opioid Withdrawal Score, from moderately severe to mild withdrawal symptoms within a few hours. Conclusion Buprenorphine and minimal supportive care can be used to treat acute withdrawal precipitated by oral naltrexone in patients with OUD.