NCT04523922

Brief Summary

The primary objective of the proposed Stage II study is to examine the efficacy of oxytocin (OT) as compared to placebo in reducing (1) alcohol use disorder (AUD) symptoms, and (2) post-traumatic stress disorder (PTSD) symptoms among Veterans receiving COPE therapy (Concurrent Treatment of PTSD and Substance Use Disorders using Prolonged Exposure). To evaluate purported neurobiological mechanisms of change, we will employ functional magnetic resonance imaging (fMRI) at pre- and post-treatment.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
175

participants targeted

Target at P75+ for phase_2

Timeline
7mo left

Started Mar 2021

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
active not recruiting

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

Study Progress89%
Mar 2021Dec 2026

First Submitted

Initial submission to the registry

August 19, 2020

Completed
5 days until next milestone

First Posted

Study publicly available on registry

August 24, 2020

Completed
7 months until next milestone

Study Start

First participant enrolled

March 29, 2021

Completed
5.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2026

Expected
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2026

Last Updated

April 9, 2026

Status Verified

April 1, 2026

Enrollment Period

5.2 years

First QC Date

August 19, 2020

Last Update Submit

April 3, 2026

Conditions

Outcome Measures

Primary Outcomes (3)

  • Change in alcohol use

    Change in percent days abstinent and heavy drinking days as measured by the TimeLine Follow-Back (TLFB).

    From baseline to week 12 and 3 and 6 month follow ups

  • Change in PTSD symptom severity - clinician rated

    Change in clinician-rated PTSD symptom severity will be measured with the Clinician Administered PTSD Scale for DSM-5 (CAPS-5).

    From baseline to week 12 and 3 and 6 month follow ups

  • Change in PTSD symptom severity - self report

    Change in self-reported PTSD symptom severity will be measured with the PTSD Checklist for DSM-5 (PCL-5).

    From baseline to week 12 and 3 and 6 month follow ups

Study Arms (2)

Oxytocin Treatment Group

EXPERIMENTAL

Participants will receive 12 weekly sessions of Concurrent Treatment of PTSD and Substance Use Disorders using Prolonged Exposure (COPE Therapy), plus intranasal Oxytocin. 40-IU dose of Oxytocin self-administered 30 minutes prior to the start of each weekly COPE session.

Drug: 40 IU Intranasal OxytocinBehavioral: Concurrent Treatment of PTSD and Substance Use Disorders using Prolonged Exposure

Placebo Group

ACTIVE COMPARATOR

Participants will receive 12 weekly sessions of Concurrent Treatment of PTSD and Substance Use Disorders using Prolonged Exposure (COPE Therapy), plus placebo (intranasal saline spray). Intranasal dose of saline spray self-administered 30 minutes prior to the start of each weekly COPE session.

Drug: PlaceboBehavioral: Concurrent Treatment of PTSD and Substance Use Disorders using Prolonged Exposure

Interventions

40 IU Intranasal Oxytocin self administered 30 minutes prior to each COPE session.

Also known as: oxytocin
Oxytocin Treatment Group

Placebo (intranasal saline spray) self administered 30 minutes prior to each COPE session.

Also known as: saline
Placebo Group

12 weekly sessions of COPE therapy for PTSD and AUD.

Also known as: COPE
Oxytocin Treatment GroupPlacebo Group

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male or female; U.S. military Veteran, any race or ethnicity; aged 18-70 years.
  • Able to provide written informed consent.
  • Meet DSM-5 diagnostic criteria for current moderate to severe alcohol use disorder.
  • Meet DSM-5 diagnostic criteria for current PTSD as assessed by the CAPS-5.

You may not qualify if:

  • Participants taking psychotropic medications will be required to be maintained on a stable dose for at least 4 weeks before study initiation.
  • Meeting DSM-5 criteria for a history of or current psychotic or bipolar affective disorders, or with current suicidal or homicidal ideation and intent. Those participants will be referred clinically for services.
  • Participants on psychotropic medications which have been initiated during the past 4 weeks.
  • Acute alcohol withdrawal as indicated by CIWA-Ar scores \>8.
  • Pregnancy or breastfeeding for women.
  • For MRI scan component: history of seizures or severe head injury, implanted metal devices or other metal (e.g., shrapnel). These participants will be eligible to enroll in the clinical trial but will not be eligible to participate in the neuroimaging component of the study.
  • Currently enrolled in behavioral treatment for AUD or PTSD.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Medical University of South Carolina

Charleston, South Carolina, 29401, United States

Location

Related Publications (1)

  • Back SE, Flanagan JC, Killeen T, Saraiya TC, Brown DG, Jarnecke AM, Rothbaum AO, Joseph J, Ana ES, de Arellano A, Shoemaker HL, Dixon RA, Nietert PJ, Brady KT. COPE and oxytocin for the treatment of co-occurring PTSD and alcohol use disorder: Design and methodology of a randomized controlled trial in U.S. military veterans. Contemp Clin Trials. 2023 Mar;126:107084. doi: 10.1016/j.cct.2023.107084. Epub 2023 Jan 13.

MeSH Terms

Conditions

Stress Disorders, Post-TraumaticAlcoholism

Interventions

OxytocinSodium Chloride

Condition Hierarchy (Ancestors)

Stress Disorders, TraumaticTrauma and Stressor Related DisordersMental DisordersAlcohol-Related DisordersSubstance-Related DisordersChemically-Induced Disorders

Intervention Hierarchy (Ancestors)

Pituitary Hormones, PosteriorPituitary HormonesPeptide HormonesHormonesHormones, Hormone Substitutes, and Hormone AntagonistsPeptidesAmino Acids, Peptides, and ProteinsChloridesHydrochloric AcidChlorine CompoundsInorganic ChemicalsSodium Compounds

Study Officials

  • Sudie Back, PhD

    Medical University of South Carolina

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

August 19, 2020

First Posted

August 24, 2020

Study Start

March 29, 2021

Primary Completion (Estimated)

June 1, 2026

Study Completion (Estimated)

December 1, 2026

Last Updated

April 9, 2026

Record last verified: 2026-04

Locations