NCT06002633 Approach-Avoidance and Alcohol Challenge Study in PTSD
| NCT ID | NCT06002633 |
| Status | Recruiting |
| Phase | — |
| Sponsor | University of Texas at Austin |
| Condition | Post-Traumatic Stress Disorder |
| Study Type | INTERVENTIONAL |
| Enrollment | 200 participants |
| Start Date | 2023-10-23 |
| Primary Completion | 2028-05-31 |
Eligibility & Interventions
Eligibility Fast-Check
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What to Expect as a Participant
You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.
This trial targets 200 participants in total. It began in 2023-10-23 with a primary completion date of 2028-05-31.
⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.
Brief Summary
Individuals with posttraumatic stress disorder (PTSD) have greater prevalence of alcohol use disorders (AUDs), with this comorbidity associated with worse illness outcomes, yet there remains limited mechanistic understanding of how PTSD confers risk for AUD. Understanding risk factors that associate with and predict the development of AUDs in PTSD could inform interventions and prevention efforts to reduce the rate of this comorbidity and improve outcomes of both disorders. Identifying predictors of risk requires longitudinal studies in PTSD aimed at capturing the mechanisms leading to the emergence of AUDs. There is growing evidence PTSD is related to biased decision-making during approach-avoidance conflict. Alcohol is also suggested to alter approach-avoidance decision-making. AUDs and acute alcohol intoxication is associated with a bias to seek out reward despite the possibility of threat (e.g., contributing to relapse following alcohol cue exposure and risky behavior during intoxication respectively). Alcohol-induced changes in approach-avoidance decision-making have not been investigated in the context of PTSD, but emerging data support the investigators' hypothesis that an interaction between alcohol and approach-avoidance conflict in PTSD may occur and contribute to risk for alcohol misuse and development of alcohol problems. No current data, cross-sectional or longitudinal, have tested the role of alcohol-induced changes in approach-avoidance conflict as a mechanism of risk for AUD among individuals with PTSD. To address this gap, the investigators propose to leverage the group's expertise in placebo-controlled alcohol administration procedures, longitudinal modeling, functional neuroimaging, and computational neuroscience approaches to investigate the effects of acute alcohol on approach-avoidance decision-making and mediating changes in multivariate neurocircuitry patterns in limbic, striatal, and salience networks.
Eligibility Criteria
1. Inclusion criteria for all participants: * between 21 and 60 years of age * having consumed at least 4 (men) or 3 (women) drinks on at least two occasions over the last year 2. Inclusion criteria for PTSD participants: \- Meeting diagnostic criteria for PTSD, confirmed by structured interview 3. For all subjects exclusion criteria include: * history of significant medical illness, particularly if possible changes in cerebral tissue * neurologic abnormality including significant head trauma (loss of consciousness of ≥5-min) * full Scale IQ \<85 * contraindication to MRI scanning * positive pregnancy test * severe alcohol use disorder * current severe cannabis use disorder * any current substance use disorder (other than alcohol, cannabis, or nicotine) * scores \> 15 on the alcohol Use Disorders Identification Test (AUDIT; part of phone screen) * ever being in an abstinence-oriented treatment program for alcohol use * reporting wanting to quit drinking but not being able to * any medical, religious, or other reasons for not drinking alcohol * history of heart attack, heart trouble, high blood pressure, diabetes, or liver disease * an adverse reaction to alcoholic beverages * reporting never consuming 4 (men) or 3 (women) or more drinks on at least two occasions over the last year * unwillingness to have a friend or family member drive them home after the alcohol administration sessions 4. Additional exclusion criteria for participants in PTSD and IPV-exposed but no PTSD groups: * not taking medications for \>4 weeks (i.e. participants must be stable on meds) * acute suicidality with intent 5. Additional exclusion criteria for participants in IPV-exposure but no PTSD group: \- history of PTSD 6. Additional exclusion criteria for healthy comparison subjects also include: * any prior psychiatric hospitalizations * lifetime history of a neurodevelopmental disorder, affective disorder, psychotic disorder, suicide attempt, or eating disorder * greater than 1 month of lifetime psychotropic medication
Contact & Investigator
Elizabeth Lippard, PhD
PRINCIPAL INVESTIGATOR
University of Texas at Austin
Frequently Asked Questions
Who can join the NCT06002633 clinical trial?
This trial is open to participants of all sexes, aged 21 Years or older, up to 60 Years, studying Post-Traumatic Stress Disorder. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.
Is NCT06002633 currently recruiting?
Yes, NCT06002633 is actively recruiting participants. Contact the research team at behavioral.neuroimaging@austin.utexas.edu for enrollment information.
Where is the NCT06002633 trial being conducted?
This trial is being conducted at Austin, United States.
Who is sponsoring the NCT06002633 clinical trial?
NCT06002633 is sponsored by University of Texas at Austin. The principal investigator is Elizabeth Lippard, PhD at University of Texas at Austin. The trial plans to enroll 200 participants.