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The effects of intranasal oxytocin in opioid-dependent individuals and healthy control subjects: a pilot study.

ABSTRACT: RATIONALE:There has been an explosion of research on the potential benefits of the social neuropeptide oxytocin for a number of mental disorders including substance use disorders. Recent evidence suggests that intranasal oxytocin has both direct anti-addiction effects and pro-social effects that may facilitate engagement in psychosocial treatment for substance use disorders. OBJECTIVES:We aimed to assess the tolerability of intranasal oxytocin and its effects on heroin craving, implicit association with heroin and social perceptual ability in opioid-dependent patients receiving opioid replacement therapy (ORT) and healthy control participants. METHODS:We performed a randomized, double-blind, placebo-controlled, within- and between-subjects, crossover, proof-of-concept trial to examine the effects of oxytocin (40 international units) on a cue-induced craving task (ORT patients only), an Implicit Association Task (IAT), and two social perception tasks: the Reading the Mind in the Eyes Task (RMET) and The Awareness of Social Inference Test (TASIT). RESULTS:Oxytocin was well tolerated by patients receiving ORT but had no significant effects on craving or IAT scores. There was a significant reduction in RMET performance after oxytocin administration versus placebo in the patient group only, and a significant reduction in TASIT performance after oxytocin in both the patient and healthy control groups. CONCLUSIONS:A single dose of intranasal oxytocin is well tolerated by patients receiving ORT, paving the way for future investigations. Despite no significant improvement in craving or IAT scores after a single dose of oxytocin and some evidence that social perception was worsened, further investigation is required to determine the role oxytocin may play in the treatment of opioid use disorder. CLINICAL TRIAL REGISTRATION:Methadone Oxytocin Option. ClinicalTrials.gov identifier: NCT01728909.

SUBMITTER: Woolley JD

PROVIDER: S-EPMC7452038 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature

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The effects of intranasal oxytocin in opioid-dependent individuals and healthy control subjects: a pilot study.

Woolley Josh D JD Arcuni Peter A PA Stauffer Christopher S CS Fulford Daniel D Carson Dean S DS Batki Steve S Vinogradov Sophia S

Psychopharmacology 20160503 13

<h4>Rationale</h4>There has been an explosion of research on the potential benefits of the social neuropeptide oxytocin for a number of mental disorders including substance use disorders. Recent evidence suggests that intranasal oxytocin has both direct anti-addiction effects and pro-social effects that may facilitate engagement in psychosocial treatment for substance use disorders.<h4>Objectives</h4>We aimed to assess the tolerability of intranasal oxytocin and its effects on heroin craving, im ...[more]

PMID: 27137199

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Project description:The neuropeptide, oxytocin (OT), has been reported to block tolerance formation to alcohol and decrease withdrawal symptoms in alcohol-dependent rodents. Numerous recent studies in human subjects indicate that OT administered by the intranasal route penetrates into and exerts effects within the brain.In a randomized, double-blind clinical trial, intranasal OT (24 IU/dose, N = 7) or placebo (N = 4) was given twice daily for 3 days in alcohol-dependent subjects admitted to a research unit for medical detoxification using Clinical Institute Withdrawal Assessment for Alcohol (CIWA) score-driven PRN administration of lorazepam. Subjects rated themselves on the Alcohol Withdrawal Symptom Checklist (AWSC) each time CIWA scores were obtained. Subjects also completed the Penn Alcohol Craving Scale, an Alcohol Craving Visual Analog Scale (ACVAS) and the Profile of Mood States (POMS) on inpatient days 2 and 3.All subjects had drunk heavily each day for at least 2 weeks prior to study and had previously experienced withdrawal upon stopping/decreasing alcohol consumption. OT was superior to placebo in reducing alcohol withdrawal as evidenced by: less total lorazepam required to complete detoxification (3.4 mg [4.7, SD] vs. 16.5 [4.4], p = 0.0015), lower mean CIWA scores on admission day 1 (4.3 [2.3] vs. 11.8 [0.4], p < 0.0001) and day 2 (3.4 [2.2] vs. 11.1 [3.6], p < 0.002), lower AWSC scores on days 1 and 2 (p < 0.02; p = 0.07), and lower ACVAS ratings (p = 0.01) and lower POMS Tension/Anxiety subscale scores on day 2 (p < 0.01).This is the first demonstration that OT treatment may block alcohol withdrawal in human subjects. Our results are consistent with previous findings in rodents that OT inhibits neuroadaptation to and withdrawal from alcohol. OT could have advantages over benzodiazepines in managing alcohol withdrawal because it may reverse rather than maintain sedative-hypnotic tolerance. It will be important to test whether OT treatment is effective in reducing drinking in alcohol-dependent outpatients.

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The effects of intranasal oxytocin in opioid-dependent individuals and healthy control subjects: a pilot study.

Publications

The effects of intranasal oxytocin in opioid-dependent individuals and healthy control subjects: a pilot study.

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