Trial Outcomes & Findings for Effects of Alcohol and Mood on Attention (NCT NCT04276779)

NCT ID: NCT04276779

Last Updated: 2025-03-11

Results Overview

A computer-based task that assesses reaction time to naming colors of words presented sequentially. Words are suicide, depressive, positive, and neutral-related. Reaction times that are higher indicate that the content of the word interfered with naming the color (i.e., attentional bias). A score is computed that subtracts reaction time to neutral words from that to suicide words, creating a measure of suicide-related attentional bias. Minimum total score within sample: -113.00 Maximum total score within the sample: 145.92 Higher values indicate more attentional bias (worse outcome).

Recruitment status

TERMINATED

Study phase

NA

Target enrollment

26 participants

Primary outcome timeframe

10 minutes

Results posted on

2025-03-11

Participant Flow

Participant milestones

Participant milestones
Measure
Alcohol and Negative Mood
Alcohol administration: Participants in the alcoholic beverage group will be provided a dose of 95% alcohol (0.99g/kg for males and 0.90 g/kg for females body weight) distributed in two equally spaced beverages (mixed with orange juice 1:5 ratio). This dose will produce a breath alcohol content ranging between .08-.10. Negative mood induction: Participants will be randomized to either negative mood induction procedure. Both conditions involve listening to music that reliably induces sad mood, while simultaneously reading self-referent statements that also induce either sad mood. This procedure lasts about 10 minutes and produces a transient mood state that passes by the end of the study.
Placebo and Negative Mood
Placebo administration: Individuals in the placebo condition will receive orange juice with 4 ml of alcohol layered on top of the juice. Ethanol will be sprayed on the rims of the glasses. Negative mood induction: Participants will be randomized to either negative mood induction procedure. Both conditions involve listening to music that reliably induces sad mood, while simultaneously reading self-referent statements that also induce either sad mood. This procedure lasts about 10 minutes and produces a transient mood state that passes by the end of the study.
Alcohol and Positive Mood
Alcohol administration: Participants in the alcoholic beverage group will be provided a dose of 95% alcohol (0.99g/kg for males and 0.90 g/kg for females body weight) distributed in two equally spaced beverages (mixed with orange juice 1:5 ratio). This dose will produce a breath alcohol content ranging between .08-.10. Positive mood induction: Participants will be randomized to either positive mood induction procedure. Both conditions involve listening to music that reliably induces positive mood, while simultaneously reading self-referent statements that also induce either positive mood. This procedure lasts about 10 minutes and produces a transient mood state that passes by the end of the study.
Placebo and Positive Mood
Placebo administration: Individuals in the placebo condition will receive orange juice with 4 ml of alcohol layered on top of the juice. Ethanol will be sprayed on the rims of the glasses. Positive mood induction: Participants will be randomized to either positive mood induction procedure. Both conditions involve listening to music that reliably induces positive mood, while simultaneously reading self-referent statements that also induce either positive mood. This procedure lasts about 10 minutes and produces a transient mood state that passes by the end of the study.
Overall Study
STARTED
6
6
7
7
Overall Study
COMPLETED
6
6
7
7
Overall Study
NOT COMPLETED
0
0
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

data were missing for one participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Alcohol and Negative Mood
n=6 Participants
Alcohol administration: Participants in the alcoholic beverage group will be provided a dose of 95% alcohol (0.99g/kg for males and 0.90 g/kg for females body weight) distributed in two equally spaced beverages (mixed with orange juice 1:5 ratio). This dose will produce a breath alcohol content ranging between .08-.10. Negative mood induction: Participants will be randomized to either negative mood induction procedure. Both conditions involve listening to music that reliably induces sad mood, while simultaneously reading self-referent statements that also induce either sad mood. This procedure lasts about 10 minutes and produces a transient mood state that passes by the end of the study.
Placebo and Negative Mood
n=6 Participants
Placebo administration: Individuals in the placebo condition will receive orange juice with 4 ml of alcohol layered on top of the juice. Ethanol will be sprayed on the rims of the glasses. Negative mood induction: Participants will be randomized to either negative mood induction procedure. Both conditions involve listening to music that reliably induces sad mood, while simultaneously reading self-referent statements that also induce either sad mood. This procedure lasts about 10 minutes and produces a transient mood state that passes by the end of the study.
Alcohol and Positive Mood
n=7 Participants
Alcohol administration: Participants in the alcoholic beverage group will be provided a dose of 95% alcohol (0.99g/kg for males and 0.90 g/kg for females body weight) distributed in two equally spaced beverages (mixed with orange juice 1:5 ratio). This dose will produce a breath alcohol content ranging between .08-.10. Positive mood induction: Participants will be randomized to either positive mood induction procedure. Both conditions involve listening to music that reliably induces positive mood, while simultaneously reading self-referent statements that also induce either positive mood. This procedure lasts about 10 minutes and produces a transient mood state that passes by the end of the study.
Placebo and Positive Mood
n=7 Participants
Placebo administration: Individuals in the placebo condition will receive orange juice with 4 ml of alcohol layered on top of the juice. Ethanol will be sprayed on the rims of the glasses. Positive mood induction: Participants will be randomized to either positive mood induction procedure. Both conditions involve listening to music that reliably induces positive mood, while simultaneously reading self-referent statements that also induce either positive mood. This procedure lasts about 10 minutes and produces a transient mood state that passes by the end of the study.
Total
n=26 Participants
Total of all reporting groups
Age, Continuous
29.67 years
STANDARD_DEVIATION 7.71 • n=6 Participants
28.17 years
STANDARD_DEVIATION 8.50 • n=6 Participants
28.50 years
STANDARD_DEVIATION 9.31 • n=7 Participants
39.71 years
STANDARD_DEVIATION 18.51 • n=7 Participants
31.84 years
STANDARD_DEVIATION 12.51 • n=26 Participants
Sex: Female, Male
Female
2 Participants
n=6 Participants • data were missing for one participant.
5 Participants
n=6 Participants • data were missing for one participant.
4 Participants
n=6 Participants • data were missing for one participant.
5 Participants
n=7 Participants • data were missing for one participant.
16 Participants
n=25 Participants • data were missing for one participant.
Sex: Female, Male
Male
4 Participants
n=6 Participants • data were missing for one participant.
1 Participants
n=6 Participants • data were missing for one participant.
2 Participants
n=6 Participants • data were missing for one participant.
2 Participants
n=7 Participants • data were missing for one participant.
9 Participants
n=25 Participants • data were missing for one participant.
Race/Ethnicity, Customized
East Asian
1 Participants
n=6 Participants
0 Participants
n=6 Participants
0 Participants
n=7 Participants
1 Participants
n=7 Participants
2 Participants
n=26 Participants
Race/Ethnicity, Customized
Black/African American
1 Participants
n=6 Participants
1 Participants
n=6 Participants
2 Participants
n=7 Participants
2 Participants
n=7 Participants
6 Participants
n=26 Participants
Race/Ethnicity, Customized
White/European Origin
4 Participants
n=6 Participants
5 Participants
n=6 Participants
4 Participants
n=7 Participants
4 Participants
n=7 Participants
17 Participants
n=26 Participants
Race/Ethnicity, Customized
South Asian
1 Participants
n=6 Participants
0 Participants
n=6 Participants
0 Participants
n=7 Participants
0 Participants
n=7 Participants
1 Participants
n=26 Participants
Race/Ethnicity, Customized
Unknown
0 Participants
n=6 Participants
0 Participants
n=6 Participants
1 Participants
n=7 Participants
0 Participants
n=7 Participants
1 Participants
n=26 Participants
Region of Enrollment
United States
6 participants
n=6 Participants
6 participants
n=6 Participants
7 participants
n=7 Participants
7 participants
n=7 Participants
26 participants
n=26 Participants
Sexual orientation
Asexual
0 Participants
n=6 Participants • Missing data for one participant.
0 Participants
n=6 Participants • Missing data for one participant.
0 Participants
n=6 Participants • Missing data for one participant.
1 Participants
n=7 Participants • Missing data for one participant.
1 Participants
n=25 Participants • Missing data for one participant.
Sexual orientation
Heterosexual
4 Participants
n=6 Participants • Missing data for one participant.
6 Participants
n=6 Participants • Missing data for one participant.
6 Participants
n=6 Participants • Missing data for one participant.
6 Participants
n=7 Participants • Missing data for one participant.
22 Participants
n=25 Participants • Missing data for one participant.
Sexual orientation
Gay
1 Participants
n=6 Participants • Missing data for one participant.
0 Participants
n=6 Participants • Missing data for one participant.
0 Participants
n=6 Participants • Missing data for one participant.
0 Participants
n=7 Participants • Missing data for one participant.
1 Participants
n=25 Participants • Missing data for one participant.
Sexual orientation
Bisexual
1 Participants
n=6 Participants • Missing data for one participant.
0 Participants
n=6 Participants • Missing data for one participant.
0 Participants
n=6 Participants • Missing data for one participant.
0 Participants
n=7 Participants • Missing data for one participant.
1 Participants
n=25 Participants • Missing data for one participant.

PRIMARY outcome

Timeframe: 10 minutes

Population: randomized participants

A computer-based task that assesses reaction time to naming colors of words presented sequentially. Words are suicide, depressive, positive, and neutral-related. Reaction times that are higher indicate that the content of the word interfered with naming the color (i.e., attentional bias). A score is computed that subtracts reaction time to neutral words from that to suicide words, creating a measure of suicide-related attentional bias. Minimum total score within sample: -113.00 Maximum total score within the sample: 145.92 Higher values indicate more attentional bias (worse outcome).

Outcome measures

Outcome measures
Measure
Alcohol and Negative Mood
n=6 Participants
Alcohol administration: Participants in the alcoholic beverage group will be provided a dose of 95% alcohol (0.99g/kg for males and 0.90 g/kg for females body weight) distributed in two equally spaced beverages (mixed with orange juice 1:5 ratio). This dose will produce a breath alcohol content ranging between .08-.10. Negative mood induction: Participants will be randomized to either negative mood induction procedure. Both conditions involve listening to music that reliably induces sad mood, while simultaneously reading self-referent statements that also induce either sad mood. This procedure lasts about 10 minutes and produces a transient mood state that passes by the end of the study.
Placebo and Negative Mood
n=6 Participants
Placebo administration: Individuals in the placebo condition will receive orange juice with 4 ml of alcohol layered on top of the juice. Ethanol will be sprayed on the rims of the glasses. Negative mood induction: Participants will be randomized to either negative mood induction procedure. Both conditions involve listening to music that reliably induces sad mood, while simultaneously reading self-referent statements that also induce either sad mood. This procedure lasts about 10 minutes and produces a transient mood state that passes by the end of the study.
Alcohol and Positive Mood
n=7 Participants
Alcohol administration: Participants in the alcoholic beverage group will be provided a dose of 95% alcohol (0.99g/kg for males and 0.90 g/kg for females body weight) distributed in two equally spaced beverages (mixed with orange juice 1:5 ratio). This dose will produce a breath alcohol content ranging between .08-.10. Positive mood induction: Participants will be randomized to either positive mood induction procedure. Both conditions involve listening to music that reliably induces positive mood, while simultaneously reading self-referent statements that also induce either positive mood. This procedure lasts about 10 minutes and produces a transient mood state that passes by the end of the study.
Placebo and Positive Mood
n=7 Participants
Placebo administration: Individuals in the placebo condition will receive orange juice with 4 ml of alcohol layered on top of the juice. Ethanol will be sprayed on the rims of the glasses. Positive mood induction: Participants will be randomized to either positive mood induction procedure. Both conditions involve listening to music that reliably induces positive mood, while simultaneously reading self-referent statements that also induce either positive mood. This procedure lasts about 10 minutes and produces a transient mood state that passes by the end of the study.
Modified Suicide Stroop Task
-10.04 milliseconds
Standard Deviation 81.21
20.05 milliseconds
Standard Deviation 39.49
10.08 milliseconds
Standard Deviation 55.22
6.78 milliseconds
Standard Deviation 71.38

SECONDARY outcome

Timeframe: 5 minutes

A brief, 2-item questionnaire that assesses state hopelessness will also be assessed. The items were rated on a scale of 1 to 5. The scale score was the sum of the two items. The total possible score for the scale (sum of the two items) ranged from 2 to 10. Higher values indicate a worse outcome.

Outcome measures

Outcome measures
Measure
Alcohol and Negative Mood
n=6 Participants
Alcohol administration: Participants in the alcoholic beverage group will be provided a dose of 95% alcohol (0.99g/kg for males and 0.90 g/kg for females body weight) distributed in two equally spaced beverages (mixed with orange juice 1:5 ratio). This dose will produce a breath alcohol content ranging between .08-.10. Negative mood induction: Participants will be randomized to either negative mood induction procedure. Both conditions involve listening to music that reliably induces sad mood, while simultaneously reading self-referent statements that also induce either sad mood. This procedure lasts about 10 minutes and produces a transient mood state that passes by the end of the study.
Placebo and Negative Mood
n=6 Participants
Placebo administration: Individuals in the placebo condition will receive orange juice with 4 ml of alcohol layered on top of the juice. Ethanol will be sprayed on the rims of the glasses. Negative mood induction: Participants will be randomized to either negative mood induction procedure. Both conditions involve listening to music that reliably induces sad mood, while simultaneously reading self-referent statements that also induce either sad mood. This procedure lasts about 10 minutes and produces a transient mood state that passes by the end of the study.
Alcohol and Positive Mood
n=7 Participants
Alcohol administration: Participants in the alcoholic beverage group will be provided a dose of 95% alcohol (0.99g/kg for males and 0.90 g/kg for females body weight) distributed in two equally spaced beverages (mixed with orange juice 1:5 ratio). This dose will produce a breath alcohol content ranging between .08-.10. Positive mood induction: Participants will be randomized to either positive mood induction procedure. Both conditions involve listening to music that reliably induces positive mood, while simultaneously reading self-referent statements that also induce either positive mood. This procedure lasts about 10 minutes and produces a transient mood state that passes by the end of the study.
Placebo and Positive Mood
n=7 Participants
Placebo administration: Individuals in the placebo condition will receive orange juice with 4 ml of alcohol layered on top of the juice. Ethanol will be sprayed on the rims of the glasses. Positive mood induction: Participants will be randomized to either positive mood induction procedure. Both conditions involve listening to music that reliably induces positive mood, while simultaneously reading self-referent statements that also induce either positive mood. This procedure lasts about 10 minutes and produces a transient mood state that passes by the end of the study.
Brief Hopelessness Measure (Brief-H-Neg)
3.17 score on a scale
Standard Deviation 2.40
3.33 score on a scale
Standard Deviation 1.51
2.57 score on a scale
Standard Deviation 1.13
2.29 score on a scale
Standard Deviation 0.76

Adverse Events

Negative Mood

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Placebo

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Positive Mood

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Alcohol

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Dr. Caitlin Clevenger

University of Alabama at Birmingham

Phone: 205-934-7008

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place