Randomised, double-blind, placebo-controlled trial evaluating the effects of naltrexone hydrochloride nasal spray on alcohol consumption in Alcohol Use Disorder

Phase 1

• Conditions: Alcohol use Disorder; MedDRA version: 21.1Level: LLTClassification code 10001601Term: Alcohol intoxication, acuteSystem Organ Class: 100000004863; Therapeutic area: Psychiatry and Psychology [F] - Behaviours [F01]

• Registration Number: EUCTR2019-002859-42-HU
• Lead Sponsor: Opiant Pharmaceuticals Inc

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2019-11-27
• Last Update Posted: 4 September 2023

Recruitment & Eligibility

• Status: ot Recruiting
• Sex: All
• Target Recruitment: 300

Inclusion Criteria

1. Aged 18 to 70 years
2. Provided written, informed consent prior to any study specific procedure being conducted.
3. Diagnosis of alcohol use disorder of at least moderate severity (AUD-MS or F10.20) according to
DSM-5 or ICD-10 (as appropriate) prior to Screening (within the previous 6 months).
4. Seeking treatment for AUD and desire to reduce or stop drinking.
5. Drinking at WHO High Risk or Very High-Risk Drinking Level for the 28 days prior to Baseline
based on the TimeLine Followback Interview. The WHO Cut-offs for High Risk drinking are as
follows: If male, reporting at least 60 grams of ethanol per day and if female, reporting at least
40 grams of ethanol per day, on average in the 4 weeks prior to consent.
6. Stable housing at Screening and for the duration of the study.
7. Plan to remain in the area throughout the study period and able to attend all sessions.

Are the trial subjects under 18? no
Number of subjects for this age range: 0
F.1.2 Adults (18-64 years) yes
F.1.2.1 Number of subjects for this age range 285
F.1.3 Elderly (>=65 years) yes
F.1.3.1 Number of subjects for this age range 15

Exclusion Criteria

1.More than 7 consecutive days of abstinence immediately prior to Baseline.
2.Moderate to severe drug use disorder in the past 12 months, as defined by DSM-5, other than alcohol, caffeine or nicotine, relative to Screening.
3.Any history of neurological condition considered by the Investigator to be clinically significant in the context of the study.
4.Known allergic reaction to naltrexone.
5.Known allergic reaction to excipients of IMP and placebo.
6.Subject is taking any prohibited medication (opioids, any medication delivered intranasally).
7.Opioid use 4 weeks prior to Screening.
8.Positive urine drug test for opioids at Screening or Baseline.
9.Taking any medications prescribed for depression or anxiety. SSRIs or SNRIs at a stable dose for 8 weeks prior to Screening are permitted.
10.Any behavioural treatment for AUD within the past 4 weeks prior to Screening.
11.Have used another investigational drug in the past 8 weeks or 5 half-lives, whichever is longer, prior to Screening.
12.EtG Test at Screening and/or Baseline that is inconsistent with self-reported drinking on the prior day (i.e., a negative test (< 500ng/ml) when participant reports heavy drinking on the prior day).
13.Have used naltrexone, nalmefene, topiramate, acamprosate, disulfiram; gabapentin, varenicline, baclofen in the past 3 months prior to Screening or intend to use these medications.
14.Significant nasal rhinitis or other conditions that restrict nasal airflow or abnormal nasal anatomy, at Screening and/or Baseline.
15.Women of childbearing potential, defined as all women physiologically capable of becoming pregnant, unless surgically sterile must use effective contraception (either combined oestrogen and progestogen containing hormonal contraception associated with inhibition of ovulation [oral, intravaginal, transdermal], progestogen only hormonal contraception associated with inhibition of ovulation [oral, injectable, implantable], IUD, IUS, vasectomised partner, sexual abstinence [only considered an acceptable method of contraception when it is in line with the subjects’ usual and preferred lifestyle], combination of male condom with either cap, diaphragm or sponge with spermicide [double barrier methods]), and willing and able to continue contraception for 1 month after the last administration of IMP. Women using oral contraception must have started using it at least 2 months prior to Screening. Women are not considered to be of childbearing potential if they have had 12 months of natural (spontaneous) amenorrhea with an appropriate clinical profile (e.g. age appropriate, history of vasomotor symptoms) or six months of spontaneous amenorrhea with serum FSH levels that have been confirmed to be in the postmenopausal range”, or have had a surgical bilateral oophorectomy (with or without hysterectomy) or bilateral tubal ligation at least six weeks before the Screening visit. In case of oophorectomy alone, the reproductive status of the woman should have been confirmed by follow up hormone level assessment.
16.Women who are pregnant or breastfeeding at Screening or Baseline.
17.Subject with concurrent disease considered by the Investigator to be clinically significant in the context of the study.
18.Severe mental illness and/or a history or evidence of organic brain disease or dementia considered by the Investigator to be clinically significant in the context of the study, that would compromise the participant’s ability to comply with

Study & Design

• Study Type: Interventional clinical trial of medicinal product
• Study Design: Not specified