Trial Outcomes & Findings for Alcohol Metabolism and Disease Risk in Asians (NCT NCT04967599)

NCT ID: NCT04967599

Last Updated: 2024-12-24

Results Overview

Drinking quantity (i.e. total number of alcoholic drinks) consumed on heaviest drinking day

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

360 participants

Primary outcome timeframe

Baseline through 10-months post-intervention (which occurred on 1 day)

Results posted on

2024-12-24

Participant Flow

Participants were recruited July to October 2021 as a college student sample in Los Angeles

All 360 participants were assigned to a group.

Participant milestones

Participant milestones
Measure
Control (CONTROL)
Participants do not receive PHEN or GENE.
Phenotype Feedback (PHEN)
Participants receive the PHEN intervention. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks.
Phenotype and Genotype Feedback (PHEN+GENE)
Participants receive the PHEN and GENE interventions. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks. Genotype Feedback Intervention: Online session providing personalized feedback on alcohol metabolism genotypes and associated health-related risks.
Overall Study
STARTED
120
120
120
Overall Study
COMPLETED
85
101
97
Overall Study
NOT COMPLETED
35
19
23

Reasons for withdrawal

Reasons for withdrawal
Measure
Control (CONTROL)
Participants do not receive PHEN or GENE.
Phenotype Feedback (PHEN)
Participants receive the PHEN intervention. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks.
Phenotype and Genotype Feedback (PHEN+GENE)
Participants receive the PHEN and GENE interventions. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks. Genotype Feedback Intervention: Online session providing personalized feedback on alcohol metabolism genotypes and associated health-related risks.
Overall Study
Lost to Follow-up
35
19
23

Baseline Characteristics

Alcohol Metabolism and Disease Risk in Asians

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Control (CONTROL)
n=120 Participants
Participants do not receive PHEN or GENE.
Phenotype Feedback (PHEN)
n=120 Participants
Participants receive the PHEN intervention. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks.
Phenotype and Genotype Feedback (PHEN+GENE)
n=120 Participants
Participants receive the PHEN and GENE interventions. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks. Genotype Feedback Intervention: Online session providing personalized feedback on alcohol metabolism genotypes and associated health-related risks.
Total
n=360 Participants
Total of all reporting groups
Age, Continuous
18.7 years
STANDARD_DEVIATION 1.1 • n=5 Participants
19.1 years
STANDARD_DEVIATION 1.3 • n=7 Participants
18.6 years
STANDARD_DEVIATION 1.2 • n=5 Participants
18.8 years
STANDARD_DEVIATION 1.2 • n=4 Participants
Sex: Female, Male
Female
66 Participants
n=5 Participants
68 Participants
n=7 Participants
74 Participants
n=5 Participants
208 Participants
n=4 Participants
Sex: Female, Male
Male
54 Participants
n=5 Participants
52 Participants
n=7 Participants
46 Participants
n=5 Participants
152 Participants
n=4 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
Asian
115 Participants
n=5 Participants
111 Participants
n=7 Participants
112 Participants
n=5 Participants
338 Participants
n=4 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
Black or African American
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
White
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Race (NIH/OMB)
More than one race
5 Participants
n=5 Participants
9 Participants
n=7 Participants
8 Participants
n=5 Participants
22 Participants
n=4 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
Region of Enrollment
United States
120 participants
n=5 Participants
120 participants
n=7 Participants
120 participants
n=5 Participants
360 participants
n=4 Participants

PRIMARY outcome

Timeframe: Baseline through 10-months post-intervention (which occurred on 1 day)

Population: 360 participants were in the baseline assessment, 280 had this outcome in the 10-month follow-up assessment

Drinking quantity (i.e. total number of alcoholic drinks) consumed on heaviest drinking day

Outcome measures

Outcome measures
Measure
Control (CONTROL)
n=120 Participants
Participants do not receive PHEN or GENE.
Phenotype Feedback (PHEN)
n=120 Participants
Participants receive the PHEN intervention. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks.
Phenotype and Genotype Feedback (PHEN+GENE)
n=120 Participants
Participants receive the PHEN and GENE interventions. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks. Genotype Feedback Intervention: Online session providing personalized feedback on alcohol metabolism genotypes and associated health-related risks.
Peak Number of Alcohol Drinks Consumed in a Day
Baseline
3.7 drinks
Standard Deviation 3.5
4.2 drinks
Standard Deviation 4.1
3.4 drinks
Standard Deviation 3.0
Peak Number of Alcohol Drinks Consumed in a Day
10-month follow-up
3.0 drinks
Standard Deviation 2.9
2.8 drinks
Standard Deviation 2.7
3.2 drinks
Standard Deviation 3.5

SECONDARY outcome

Timeframe: Baseline through 10-months post-intervention (which occurred on 1 day)

Population: 360 participants were in the baseline assessment, 279 of whom reported this variable in the 10-month follow-up assessment

Number of days consumed alcohol in the past month

Outcome measures

Outcome measures
Measure
Control (CONTROL)
n=120 Participants
Participants do not receive PHEN or GENE.
Phenotype Feedback (PHEN)
n=120 Participants
Participants receive the PHEN intervention. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks.
Phenotype and Genotype Feedback (PHEN+GENE)
n=120 Participants
Participants receive the PHEN and GENE interventions. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks. Genotype Feedback Intervention: Online session providing personalized feedback on alcohol metabolism genotypes and associated health-related risks.
Number of Drinking Days
Baseline
2.4 days
Standard Deviation 1.8
2.3 days
Standard Deviation 1.8
2.3 days
Standard Deviation 1.8
Number of Drinking Days
10-month follow-up
2.3 days
Standard Deviation 1.9
2.0 days
Standard Deviation 1.8
2.2 days
Standard Deviation 1.8

SECONDARY outcome

Timeframe: Baseline through 10-months post-intervention (which occurred on 1 day)

Population: 360 participants were in the baseline assessment, 269 of whom reported on this variable in the 10-month follow-up assessment

Alcohol quantity (total number of drinks) consumed on a typical drinking weekend

Outcome measures

Outcome measures
Measure
Control (CONTROL)
n=120 Participants
Participants do not receive PHEN or GENE.
Phenotype Feedback (PHEN)
n=120 Participants
Participants receive the PHEN intervention. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks.
Phenotype and Genotype Feedback (PHEN+GENE)
n=120 Participants
Participants receive the PHEN and GENE interventions. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks. Genotype Feedback Intervention: Online session providing personalized feedback on alcohol metabolism genotypes and associated health-related risks.
Number of Alcoholic Drinks Consumed on Weekend
Baseline
2.7 drinks
Standard Deviation 4.2
3.1 drinks
Standard Deviation 4.4
2.7 drinks
Standard Deviation 3.6
Number of Alcoholic Drinks Consumed on Weekend
10-month follow-up
2.1 drinks
Standard Deviation 3.8
1.9 drinks
Standard Deviation 3.0
2.7 drinks
Standard Deviation 4.2

SECONDARY outcome

Timeframe: Baseline through 10-months post-intervention (which occurred on 1 day)

Population: 360 participants were in the baseline assessment, 269 of whom reported this variable in the 10-month follow-up

Total quantity (i.e. number of drinks) of alcohol consumed in a typical drinking week

Outcome measures

Outcome measures
Measure
Control (CONTROL)
n=120 Participants
Participants do not receive PHEN or GENE.
Phenotype Feedback (PHEN)
n=120 Participants
Participants receive the PHEN intervention. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks.
Phenotype and Genotype Feedback (PHEN+GENE)
n=120 Participants
Participants receive the PHEN and GENE interventions. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks. Genotype Feedback Intervention: Online session providing personalized feedback on alcohol metabolism genotypes and associated health-related risks.
Number of Alcoholic Drinks Consumed Weekly
Baseline
3.2 drinks
Standard Deviation 4.6
4.0 drinks
Standard Deviation 5.6
2.9 drinks
Standard Deviation 4.1
Number of Alcoholic Drinks Consumed Weekly
10-month follow-up
2.8 drinks
Standard Deviation 5.8
2.2 drinks
Standard Deviation 3.4
2.7 drinks
Standard Deviation 4.2

SECONDARY outcome

Timeframe: Baseline through 10-months post-intervention (which occurred on 1 day)

Population: 360 participants were in the baseline assessment, 280 of whom reported on this variable in the 10-month follow-up

Number of Participants Identified as Non-drinkers (i.e. have not had alcohol beyond small sips or tastes)

Outcome measures

Outcome measures
Measure
Control (CONTROL)
n=120 Participants
Participants do not receive PHEN or GENE.
Phenotype Feedback (PHEN)
n=120 Participants
Participants receive the PHEN intervention. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks.
Phenotype and Genotype Feedback (PHEN+GENE)
n=120 Participants
Participants receive the PHEN and GENE interventions. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks. Genotype Feedback Intervention: Online session providing personalized feedback on alcohol metabolism genotypes and associated health-related risks.
Number of Participants Identified as Non-drinkers
Baseline
14 Participants
15 Participants
16 Participants
Number of Participants Identified as Non-drinkers
10-month follow-up
4 Participants
9 Participants
4 Participants

SECONDARY outcome

Timeframe: Baseline through 10-months post-intervention (which occurred on 1 day)

Population: 311 participants in the baseline assessment and 220 in the 10-month follow-up assessment were current drinkers and could have used a flush cure (i.e. taken a substance to reduce flushing when drinking alcohol)

Proportion of time used a product to reduce flushing when drinking alcohol

Outcome measures

Outcome measures
Measure
Control (CONTROL)
n=107 Participants
Participants do not receive PHEN or GENE.
Phenotype Feedback (PHEN)
n=101 Participants
Participants receive the PHEN intervention. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks.
Phenotype and Genotype Feedback (PHEN+GENE)
n=103 Participants
Participants receive the PHEN and GENE interventions. Phenotype Feedback Intervention: Online session providing information on health-related risk associated with alcohol consumption and alcohol metabolism gene variations plus personalized feedback on flushing phenotype and associated risks. Genotype Feedback Intervention: Online session providing personalized feedback on alcohol metabolism genotypes and associated health-related risks.
Alcohol Flush Cure Use Rate
Baseline · Some of the time used a flush cure
7 Participants
6 Participants
3 Participants
Alcohol Flush Cure Use Rate
Baseline · Almost never/never used a flush cure
97 Participants
91 Participants
94 Participants
Alcohol Flush Cure Use Rate
Baseline · Half of the time or more used a flush cure
3 Participants
4 Participants
6 Participants
Alcohol Flush Cure Use Rate
10-month follow-up · Some of the time used a flush cure
5 Participants
2 Participants
2 Participants
Alcohol Flush Cure Use Rate
10-month follow-up · Almost never/never used a flush cure
61 Participants
67 Participants
73 Participants
Alcohol Flush Cure Use Rate
10-month follow-up · Half of the time or more used a flush cure
2 Participants
5 Participants
3 Participants

Adverse Events

Control (CONTROL)

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

Phenotype Feedback (PHEN)

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

Phenotype and Genotype Feedback (PHEN+GENE)

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

Susan Luczak, PI of study

University of Southern California

Phone: 2137402203

Results disclosure agreements

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