NCT03878316

Brief Summary

Primary: The primary objective of the study is to compare the efficacy of intranasal oxytocin in reducing the weekly percentage of heavy drinking days over the 10 weeks of maintenance treatment among subjects with moderate to severe Alcohol Use Disorder (AUD). A "heavy drinking day" is 4 or more drinks per drinking day for women and 5 or more drinks per drinking day for men. Secondary: Secondary objectives include assessment of other measures of the effects of oxytocin compared with placebo on reduction of alcohol use as well as effects on psychological assessments, alcohol craving, alcohol-related consequences, cigarette smoking and other nicotine use, retention in the study, safety, and application site (nares) tolerability throughout the study.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
100

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Jun 2022

Shorter than P25 for phase_2

Geographic Reach
1 country

4 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 14, 2019

Completed
4 days until next milestone

First Posted

Study publicly available on registry

March 18, 2019

Completed
3.3 years until next milestone

Study Start

First participant enrolled

June 29, 2022

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 13, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 13, 2023

Completed
1.8 years until next milestone

Results Posted

Study results publicly available

July 23, 2025

Completed
Last Updated

August 7, 2025

Status Verified

July 1, 2025

Enrollment Period

1.3 years

First QC Date

March 14, 2019

Results QC Date

June 16, 2025

Last Update Submit

July 22, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Weekly Percentage of Heavy Drinking Days

    The primary efficacy endpoint is the weekly percentage of heavy drinking days during the 10-week maintenance treatment period. A "heavy drinking day" is 4 or more drinks per drinking day for women and 5 or more drinks per drinking day for men. Drinking data will be collected by the Timeline Followback (TLFB) method.

    Weeks 3-12

Secondary Outcomes (17)

  • Percentage of Subjects With no Heavy Drinking Days

    weeks 3-12

  • Percentage of Subjects Abstinent From Alcohol

    Weeks 3-12

  • Percentage of Subjects With at Least a 1-level World Health Organization (WHO) Drinking Risk Category Decrease

    weeks 3-12

  • Percentage of Subjects With at Least a 2-level World Health Organization (WHO) Drinking Risk Category Decrease

    weeks 3-12

  • Percentage of Days Abstinent Per Week

    weeks 3-12

  • +12 more secondary outcomes

Study Arms (2)

Intranasal Oxytocin

ACTIVE COMPARATOR

Oxytocin, 35 IU per dose, intranasally twice-daily. One dose is defined as intranasal spray of 100 μL per each nostril x 5 sprays in alternating nostrils with a 30 second wait between sprays for a total dose volume of 500 μL. The total daily dose of oxytocin will be 70 IU/mL.

Drug: Instranasal Oxytocin

Instrasal Placebo

PLACEBO COMPARATOR

Identically matched placebo administered intranasally twice-daily. One dose is defined as intranasal spray of 100 μL per each nostril x 5 sprays in alternating nostrils with a 30 second wait between sprays for a total dose volume of 500 μL.

Drug: Instranasal Oxytocin

Interventions

Intranasal Oxytocin - concentrated formulation - 35 IU per dose

Instrasal PlaceboIntranasal Oxytocin

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Be at least 21 years of age.
  • Have a current (past 12 months) DSM-5 diagnosis of AUD (4 or more symptoms) assessed using the MINI neuropsychiatric interview version 7.0.2 (at least moderate severity, ICD-10-CM Code F10.20 alcohol dependence, uncomplicated).
  • Have a BAC by breathalyzer equal to 0.000 when s/he signed the informed consent document (either just prior to or immediately after signing consent).
  • Be seeking treatment for problems with alcohol reduction in drinking.
  • Be able to verbalize an understanding of the consent form, able to provide written informed consent, verbalize willingness to complete study procedures, able to understand written and oral instructions in English and able to complete the questionnaires required by the protocol.
  • Agree (if the subject is female and of child bearing potential) to use at least one of the following methods of birth control, unless she is surgically sterile, partner is surgically sterile or she is postmenopausal:
  • oral contraceptives,
  • contraceptive sponge,
  • patch,
  • double barrier (diaphragm/spermicidal or condom/spermicidal),
  • intrauterine contraceptive system,
  • etonogestrel implant,
  • medroxyprogesterone acetate contraceptive injection,
  • complete abstinence from sexual intercourse, and/or
  • hormonal vaginal contraceptive ring.
  • +17 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (4)

University of California

Los Angeles, California, 90095, United States

Location

Johns Hopkins School of Medicine

Baltimore, Maryland, 21224, United States

Location

Boston Medical Center

Boston, Massachusetts, 02118, United States

Location

University of Virginia

Charlottesville, Virginia, 22904, United States

Location

MeSH Terms

Conditions

Alcoholism

Condition Hierarchy (Ancestors)

Alcohol-Related DisordersSubstance-Related DisordersChemically-Induced DisordersMental Disorders

Results Point of Contact

Title
Dr. Daniel Falk
Organization
National Institute on Alcohol Abuse and Alcoholism

Study Officials

  • Raye Litten, PHD

    National Institute on Alcohol Abuse and Alcoholism (NIAAA)

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 14, 2019

First Posted

March 18, 2019

Study Start

June 29, 2022

Primary Completion

October 13, 2023

Study Completion

October 13, 2023

Last Updated

August 7, 2025

Results First Posted

July 23, 2025

Record last verified: 2025-07

Locations