Oxytocin Suppresses Substance Use Disorders Associated With Chronic Stress

December 3, 2018 updated by: Medical University of South Carolina
In comparison to the general population, military personnel and veterans are at increased risk of developing both substance use disorders (SUDs) and post-traumatic stress disorder (PTSD). Despite promising developments in the past decade, the treatment of patients with SUDs and comorbid PTSD is woefully inadequate (Back, 2010; Back et al., 2014; Brady et al., 2007; McCauley et al., 2012). One of the adverse effects of abused drugs is their long-term negative impact on social behavior that is thought to involve oxytocin (OT) dysregulation (McGregor et al., 2008). In preclinical and clinical experiments, local, intra-nasal, or systemic OT administration decreases activation of the amygdala in response to visual fearful/threatening stimuli (Kirsch et al., 2005), ameliorates the effects of stressful events, and decreases drug-taking and seeking behavior (McGregor et al., 2008; Baskerville and Douglas, 2010; Carson et al., 2010a; Bowen et al., 2011; Cox et al 2013). However, little attention has been focused on whether OT decreases SUD vulnerability after exposure to traumatic stress in preclinical or clinical studies. This clinical project will determine whether intra-nasally administered OT will decrease craving (Aim 1) to use alcohol and decrease stress reactivity (Aim 2) following exposure to laboratory-induced stress (Trier Social Stress Task) among veterans with a dual diagnosis of alcohol use disorder and PTSD.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
73

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • South Carolina
      • Charleston, South Carolina, United States, 29425
        • Medical University of South Carolina

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

21 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Male or female; any race or ethnicity; age 21-65 years.
  • Female subjects will be required to complete the laboratory testing during the early to mid-follicular phase of their menstrual cycle (days 1-7 following the onset of menses).
  • Veteran of the US military; any service branch.
  • Able to provide informed consent and function at an intellectual level sufficient to allow accurate completion of the assessment instruments.
  • Subjects must be able to comprehend English.
  • Meet DSM-5 criteria for a current alcohol use disorder (assessed via the Mini International Neuropsychiatric Interview; MINI). Note that we will use the currently available diagnostic measure (MINI for DSM-IV) and will make appropriate modifications to update for compatibility with DSM-5.
  • Meet DSM-5 criteria for current PTSD (assessed via the Clinician Administered PTSD Scale; CAPS). Note that we will use the currently available assessment instrument (CAPS for DSM-IV), and will make appropriate modifications to update for compatibility with DSM-5.
  • A CAPS score of 50 or greater.
  • Subjects will be required to have at least 5 days of abstinence from alcohol or other substances (except caffeine or nicotine) prior to completing the laboratory testing, as verified by multiple methods including self-report, breathalyzer tests, and urine drug screen tests.
  • Subjects may also meet criteria for a mood disorder (except bipolar affective disorder, see Exclusion Criteria) or anxiety disorders (e.g., agoraphobia, social phobia, generalized anxiety disorder). The inclusion of subjects with affective and anxiety disorders is essential because of the marked frequency of the co-existence of mood and other anxiety disorders among patients with PTSD and alcohol use disorders.
  • Subjects taking psychotropic medications will be required to be maintained on a stable dose for at least eight weeks before study initiation. This is because initiation or change of psychotropic medications during the course of the trial may interfere with interpretation of results.
  • Must consent to random assignment to oxytocin or placebo.

Exclusion Criteria:

  • Subjects 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 subjects will be referred clinically.
  • Subjects who would present a serious suicide risk or who are likely to require hospitalization during the course of the study. Those subjects will be referred clinically.
  • Subjects on maintenance anxiolytic, antidepressant, or mood stabilizing medications, which have been initiated during the past 8 weeks.
  • Subjects with a history of a major medical illness (e.g., endocrine, cardiovascular, central nervous system disorders, peripheral neuropathy, or pulmonary disease) or other acute or unstable medical condition that might interfere with safe conduct of the study or accurate interpretation of the results.
  • Subjects meeting DSM-5 criteria for another substance use disorder, except caffeine or nicotine, within the past 12 months.
  • Subjects experiencing withdrawal symptoms, as evidence by a score of 10 or above on the Clinical Institute Withdrawal Assessment of Alcohol (CIWA)
  • Females who are unable or unwilling to be scheduled for lab testing during the early to mid-follicular phase of their menstrual cycle.
  • Pregnant women will be excluded from the proposed study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Factorial Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Oxytocin
Each participant will self-administer a 40 IU dose of intranasal oxytocin.
Drug: Oxytocin
One 40 IU dose of intranasal oxytocin will be self-administered (5 puffs in each nostril) by participants.
Placebo Comparator: Control
Each participant will self-administer a 40 IU dose of intranasal saline.
Drug: Placebo
Each participant will self-administer a 40 IU dose of intranasal saline.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Alcohol Craving
Time Frame: 2 hours
Using the Visual Analogue Scale (VAS), participants provided self-report ratings of subjective alcohol cravings on a scale of 1-10, with one being the lowest/better score, and 10 being the highest/worst outcome.
2 hours

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Stress Reactivity
Time Frame: 2 hours
Salivary Cortisol (μg/dL). Greater cortisol levels are indicative of greater stress reactivity.
2 hours

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Medical University of South Carolina

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Sudie E. Back, Ph.D., Medical University of South Carolina

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 2014

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 1, 2017

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
April 1, 2017

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 6, 2014

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 7, 2014

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 10, 2014

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 14, 2019

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 3, 2018

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 018127-002 Seq. 1

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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