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Alcohol AbuseNCT04543942

Sex Differences in Risk for Alcohol Abuse

A study testing Alcohol and Saline in people with Alcohol Abuse, run by Mark Fillmore at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study will determine the neural and hormonal mechanisms underlying sex differences in sensitivity to the disinhibiting effects of alcohol in heavy drinkers. Read more about this study

Who is it for?
Ages 21 to 29 yearsHealthy volunteers can take part
Conditions the study is for
Alcohol Abuse
What is being tested?
Alcohol and Saline
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
28 participants
Where
1 siteUnited States
Study dates
1 Nov 2019to 24 May 2023
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 21 to 29 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • heavy drinking
  • Alcohol Use Disorder Identification Test score above 7
  • right-handed
  • BMI between 19 and 26
  • high school education
  • fluent in English
  • women must have regular menstrual cycles
  • not using hormonal contraceptives

Who cannot join

  • drug use disorder (SCID, DSM-5), other than nicotine or caffeine
  • meets withdrawal criteria
  • history of physical or psychiatric disease
  • contraindication for fMRI
  • pregnant or breastfeeding
  • smoking more than 5 cigarettes per day

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University Of Kentucky Psychology Research Lab

    Lexington, Kentucky, 40504

Other trials in United States

About this study

Official title: Neurobiological Factors Underlying Sex Differences in Risk for Alcohol Abuse

This study will determine the neural and hormonal mechanisms underlying sex differences in sensitivity to the disinhibiting effects of alcohol in heavy drinkers.

Read the detailed description

Alcohol abuse inflicts enormous physical, emotional, and financial burdens on the individual and society at large. Knowing who is at risk for alcohol abuse, and why, is crucial for the development of effective prevention and treatment strategies. Alcohol abuse has been traditionally considered a male-oriented problem and as a consequence research on risk factors specific to women has been minimal. However, the sex gap in substance abuse is closing rapidly, and findings from both animal and human studies suggest that females are actually more vulnerable to drug use than males. As such, there is an urgent need to identify sex differences in risk factors for alcohol abuse in order to develop sex-specific prevention and treatment efforts. One clear candidate risk factor is poor inhibitory control, both in terms of baseline levels of inhibition and sensitivity to the disinhibiting effects of alcohol. Recent studies suggest that sex hormones affect inhibitory control in drug-free individuals, potentially contributing to sex differences in baseline levels of inhibition. However, the degree to which fluctuations in sex hormones influence sex differences in inhibition-related brain function in sober and intoxicated individuals is not known. The proposed project will determine the neural and hormonal mechanisms underlying sex differences in sensitivity to the disinhibiting effects of alcohol in heavy drinkers.

The overall objective of the research is to identify hormonal determinants of alcohol effects on brain activation during response inhibition (BARI) in young adult female and male drinkers. BARI will be assessed using functional magnetic resonance imaging (fMRI) during performance of the stop signal task. This task reliably activates right-lateralized prefrontal regions implicated in inhibitory control. This study will assess BARI during IV alcohol (60mg%) and saline infusion in women during the early follicular and mid-luteal phases and in men at matched intervals.

Conditions
Alcohol Abuse
Being tested
Alcohol, Saline
Keywords
brain activation during response inhibition, BARI, fMRI, stop signal task, sex difference, menstrual, inhibitory control
Medical subject headings
Alcoholism

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • AlcoholDrug

    Alcohol will be administered by IV infusion (60mg%).

  • SalineDrug

    Saline is administered as the placebo

Study groups in NCT04543942
Study groupRoleWhat they receive
Alcohol, then saline, then alcohol, then salineExperimentalParticipants first received alcohol (60mg%) intravenously and then 24-48 hours later they received saline intravenously. Two weeks later, they again received alcohol (60mg%) intravenously and then 24 - 48 hours later they received saline intravenously.
Receives: Drug: Alcohol; Drug: Saline
Saline, then alcohol, then saline, then alcoholExperimentalParticipants first received saline intravenously and then 24-48 hours later they received alcohol (60mg%) intravenously. Two weeks later, they again received saline intravenously and then 24 - 48 hours later they received alcohol (60mg%) intravenously.
Receives: Drug: Alcohol; Drug: Saline

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Brain Activation During Response Inhibition (BARI) - Alcohol Infusion

    Brain activation during response inhibition (BARI) was assessed using blood oxygenation level dependent (BOLD) fMRI during performance of the stop signal task during alcohol (60mg%) infusion. Values were determined by the contrast of BOLD activation during successful inhibition trials relative to go trials.

    Measured: During two alcohol sessions which could occur on two of four possible days: 1 or 2 and 15 or 16; data from the two alcohol sessions are averaged together

  2. Brain Activation During Response Inhibition (BARI) - Saline Infusion

    Brain activation during response inhibition (BARI) was assessed using blood oxygenation level dependent (BOLD) fMRI during performance of the stop signal task during saline infusion. Values were determined by the contrast of BOLD activation during successful inhibition trials relative to go trials.

    Measured: During two saline (placebo) sessions which could occur on two of four possible days: 1 or 2 and 15 or 16; data from the two saline sessions are averaged together

Secondary outcomes (14)
  1. Estradiol Levels - Alcohol Infusion

    Estradiol levels (pg/mL) were measured from blood samples following alcohol infusion.

    Measured: During two alcohol sessions which could occur on two of four possible days: 1 or 2 and 15 or 16; data from the two alcohol sessions are averaged together

  2. Estradiol Levels - Saline Infusion

    Estradiol levels (pg/mL) were measured from blood samples following saline infusion.

    Measured: During two saline (placebo) sessions which could occur on two of four possible days: 1 or 2 and 15 or 16; data from the two saline sessions are averaged together

  3. Progesterone Levels - Alcohol Infusion

    Progesterone levels (ng/mL) were measured from blood samples prior to alcohol infusion.

    Measured: During two alcohol sessions which could occur on two of four possible days: 1 or 2 and 15 or 16; data from the two alcohol sessions are averaged together

  4. Progesterone Levels - Saline Infusion

    Progesterone levels (ng/mL) were measured from blood samples following saline infusion.

    Measured: During two saline (placebo) sessions which could occur on two of four possible days: 1 or 2 and 15 or 16; data from the two saline sessions are averaged together

  5. Testosterone Levels - Alcohol Infusion

    Testosterone levels (ng/dL) were measured from blood samples following alcohol infusion.

    Measured: During two alcohol sessions which could occur on two of four possible days: 1 or 2 and 15 or 16; data from the two alcohol sessions are averaged together

  6. Testosterone Levels - Saline Infusion

    Testosterone levels (ng/dL) were measured from blood samples following saline infusion.

    Measured: During two saline (placebo) sessions which could occur on two of four possible days: 1 or 2 and 15 or 16; data from the two saline sessions are averaged together

  7. Biphasic Alcohol Effects Score - Stimulation - Alcohol Infusion

    The Biphasic Alcohol Effects Scale (BAES) is a 14-point self-reporting, unipolar adjective rating scale designed to measure both stimulant and sedative effects of alcohol. Scores range from 0-10 for each of the 7 Stimulation sub-scale questions, for a total Stimulation score range of 0-70. Higher scores indicate increased stimulation. This outcome measure was collected during alcohol (60mg%) infusion.

    Measured: During two alcohol sessions which could occur on two of four possible days: 1 or 2 and 15 or 16; data from the two alcohol sessions are averaged together

  8. Biphasic Alcohol Effects Score - Sedation - Alcohol Infusion

    The Biphasic Alcohol Effects Scale (BAES) is a 14-point self-reporting, unipolar adjective rating scale designed to measure both stimulant and sedative effects of alcohol. Scores range from 0-10 for each of the 7 Sedation sub-scale questions, for a total Sedation score range of 0-70. Higher scores indicate increased sedation. This outcome measure was collected during alcohol (60mg%) infusion.

    Measured: During two alcohol sessions which could occur on two of four possible days: 1 or 2 and 15 or 16; data from the two alcohol sessions are averaged together

  9. Biphasic Alcohol Effects Scale (BAES) - Stimulation - Saline Infusion

    The Biphasic Alcohol Effects Scale (BAES) is a 14-point self-reporting, unipolar adjective rating scale designed to measure both stimulant and sedative effects of alcohol. Scores range from 0-10 for each of the 7 Stimulation sub-scale questions, for a total Stimulation score range of 0-70. Higher scores indicate increased stimulation. This outcome measure was collected during saline infusion.

    Measured: During two saline (placebo) sessions which could occur on two of four possible days: 1 or 2 and 15 or 16; data from the two saline sessions are averaged together

  10. Biphasic Alcohol Effects Scale (BAES) - Sedation - Saline

    The Biphasic Alcohol Effects Scale (BAES) is a 14-point self-reporting, unipolar adjective rating scale designed to measure both stimulant and sedative effects of alcohol. Scores range from 0-10 for each of the 7 Sedation sub-scale questions, for a total Sedation score range of 0-70. Higher scores indicate increased stimulation. This outcome measure was collected during saline infusion.

    Measured: During two saline (placebo) sessions which could occur on two of four possible days: 1 or 2 and 15 or 16; data from the two saline sessions are averaged together

  11. Drug Effects Questionnaire Score - Feel - Alcohol Infusion

    The Drug Effects Questionnaire (DEQ) consists of four questions to assess acute subjective response to alcohol intake. This measure captures the amount someone feels the effects of alcohol, on a scale from 0 to 100. Higher scores indicate greater levels of 'feel alcohol'. Scores were obtained during alcohol (60mg%) infusion.

    Measured: During two alcohol sessions which could occur on two of four possible days: 1 or 2 and 15 or 16; data from the two alcohol sessions are averaged together

  12. Drug Effects Questionnaire Score - Like - Alcohol Infusion

    The Drug Effects Questionnaire (DEQ) consists of four questions to assess acute subjective response to alcohol intake. This measure captures the amount someone likes the effects of alcohol, on a scale from 0 to 100. Higher scores indicate greater levels of 'like alcohol'. Scores were obtained during alcohol (60mg%) infusion.

    Measured: During two alcohol sessions which could occur on two of four possible days: 1 or 2 and 15 or 16; data from the two alcohol sessions are averaged together

  13. Drug Effects Questionnaire (DEQ) - Feel - Saline Infusion

    The Drug Effects Questionnaire (DEQ) consists of four questions to assess acute subjective response to alcohol intake. This measure captures the amount someone feels the effects of alcohol, on a scale from 0 to 100. Higher scores indicate greater levels of 'feel alcohol'. Scores were obtained during saline infusion.

    Measured: During two saline (placebo) sessions which could occur on two of four possible days: 1 or 2 and 15 or 16; data from the two saline sessions are averaged together

  14. Drug Effects Questionnaire (DEQ) - Like - Saline Infusion

    The Drug Effects Questionnaire (DEQ) consists of four questions to assess acute subjective response to alcohol intake. This measure captures the amount someone likes the effects of alcohol, on a scale from 0 to 100. Higher scores indicate greater levels of 'like alcohol'. Scores were obtained during saline infusion.

    Measured: During two saline (placebo) sessions which could occur on two of four possible days: 1 or 2 and 15 or 16; data from the two saline sessions are averaged together

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Sep 2020
  2. Study start1 Nov 2019
  3. Primary completion24 May 2023
  4. Study completion24 May 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Crossover
Masking
Single blind
Who is masked
Participant
Enrolment
28 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04543942
Sponsor's protocol ID
50301
Other IDs
K01AA024519-06
Status last verified
Aug 2024
First submitted
2 Sep 2020
Last updated
4 Sep 2024
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Alcohol and Saline in people with Alcohol Abuse, run by Mark Fillmore at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 4 Sep 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 4 Sep 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Brain Activation During Response Inhibition (BARI) - Alcohol Infusion (time frame: During two alcohol sessions which could occur on two of four possible days: 1 or 2 and 15 or 16; data from the two alcohol sessions are averaged together). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Sep 2024.

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