Oxytocin and Naltrexone: Investigation of Combined Effects on Stress- and Alcohol Cue-induced Craving in Alcohol Use Disorder

Last updated: March 28, 2024
Sponsor: Central Institute of Mental Health, Mannheim
Overall Status: Completed

Phase

2/3

Condition

Alcohol Use Disorder

Substance Abuse

Addictions

Treatment

Oxytocin nasal spray

Naltrexone Pill

Placebo

Clinical Study ID

NCT05093296
CIMH ON-ICE 21
  • Ages 18-75
  • All Genders

Study Summary

Alcohol use disorder (AUD) is a chronic relapsing disorder. Alcohol craving, a hallmark symptom of AUD that drives relapse in patients, is only insufficiently treated by existing medication. One promising new compound is Oxytocin (OXY), which showed beneficial effects on alcohol craving in preliminary clinical studies. Additionally, OXY seems to enhance effects of established medication, specifically Naltrexone (NTX), an opioid-antagonist which is approved for AUD treatment via positive synergism on neurotransmitter levels. The proposed two-armed, 1:1 randomized, double-blind, parallel group trial seeks to test the putative synergistic effects of combined intranasal OXY spray (24 IU) + oral NTX (50mg) against Placebo spray + oral NTX (50mg) on alcohol craving (primary outcome) in male and female patients with AUD that suffer from high alcohol craving, within the framework of a validated alcohol cue-and stress-exposure task (i.e. a combined Trier Stress Test and alcohol cue-exposure) that was established for screening new medications in AUD and determine their effects on craving and relapse risk. Treatment effects on additional neurobiological and biochemical markers of craving that show strong associations to individual relapse risk, will serve as secondary outcomes. Collection and analysis of follow-up data (90 days) will be performed to determine whether treatment effects relate to patient outcome.

The clinical trial period for an individual participant consists of a screening visit (visit 1), a baseline visit (visit 2) and two treatment visits (visits 3 and 4)(all within equal or less than ten days) followed by a 90 days (+/- 7 days) follow-up phase with two visits (visits 5 and 6) at day 30 (± 7 days) and day 90 (± 7 days). Visits 1 to 4 will be conducted while participants are undergoing standard in-patient treatment at the Department of Addictive Behavior and Addiction medicine at the Central Institute of Mental Health (CIMH) in Mannheim, Germany, for the medical condition under investigation.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Age between 18 and 70 years
  • Patients meeting the diagnosis of an alcohol dependence according to the InternationClasification of Diseases 10th revision (ICD10)
  • Patients with at least moderate craving, i.e. either >=15 points on the Alcohol UrgeQuestionnaire (AUQ, range 8 to 56 points) craving scale or increase in AUQ scores by >= 50% after exposure to visual alcohol cues (i.e. minimum increase of >=4 pointsafter cue exposure)
  • Ability of the individual to understand the character and the individual consequencesof the clinical trial
  • Written informed consent (must be available before enrollment in the study)
  • Consent to random assignment
  • For women with childbearing potential, use of a highly effective birth control methoduntil 24 hours after Visit 4 and negative pregnancy test

Exclusion

Exclusion Criteria:

  • Subjects presenting with any of the following criteria will not be included in theclinical trial: Current psychotic or bipolar disorder or current severe depressiveepisode with suicidal ideations
  • Current treatment with any of the following substances: Any investigational medicinalproduct, Opioid-containing Analgesics, Anorexics, Anticonvulsants, Opioid-containingAntidiarrheal Agents, Antineoplastics, Antipsychotics (exception: episodic use ofmelperone, pipamperone and quetiapine are allowed), Antidepressants (exception:allowed, when being taken in stable dose for a minimum of 14 days prior to enrolmentand/or doxepin in low doses [max. 75mg daily]), Opioid-containing Cough/cold agents,systemic Steroids
  • Positive drug screening (amphetamines/ecstasy, opiates, cocaine, barbiturates)
  • Pregnancy, lactation or breastfeeding
  • Current severe somatic comorbidities: liver cirrhosis [CHILD B or C] or impaired renalfunction [glomerular filtration rate (GFR)<15ml/Min] [each determined by physicalexamination and/or laboratory testing], severe heart insufficiency [determined byassessment of medical history], pre-existing epilepsy [determined by assessment ofmedical history], long-QT syndrome or cardial arrhythmia [determined by ECG]
  • History of hypersensitivity to the investigational medicinal product Oxytocin (Syntocinon®) and/or Naltrexone (trade names: Adepend, Naltrexon-Hcl neuraxpharm,Naltrexonhydrochlorid Accord) or to any drug with similar chemical structure or to anyexcipient present in the pharmaceutical form of the investigational medicinal productOxytocin (Syntocinon®) and/or Naltrexone
  • Participation in other clinical trials or observation period of competing clinicaltrials, respectively.
  • Acute suicidal tendency or acute endangerment of self and others

Study Design

Total Participants: 62
Treatment Group(s): 3
Primary Treatment: Oxytocin nasal spray
Phase: 2/3
Study Start date:
December 02, 2021
Estimated Completion Date:
September 27, 2023

Connect with a study center

  • Central Institute of Mental Health

    Mannheim, 68159
    Germany

    Site Not Available

Not the study for you?

Let us help you find the best match. Sign up as a volunteer and receive email notifications when clinical trials are posted in the medical category of interest to you.