An interventional study of Alcohol-free Social Activities Program in Heavy Episodic Drinking, Problem Drinking and College Student Drinking, sponsored by University of Washington. Recruiting at 1 site in United States. Open to participants aged 18 Years to 29 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-09-24.
Sponsored by University of Washington · Not applicable, Interventional, and Prevention
The purpose of this study is to evaluate the feasibility and acceptability of an intervention aiming to reduce heavy episodic drinking and negative consequences from alcohol by increasing the availability of and engagement in alcohol-free social activities for college students who are affiliated with a fraternity or sorority organization.
The negative impact of heavy episodic drinking (HED) among college students continues to be a major public health issue, and students who are members of fraternities and sororities (Greek members) are at particularly greater risk for experiencing negative alcohol consequences due to frequent HED. This study integrates developmental and behavioral economic models of alcohol use to test an environmental approach to reducing alcohol-related harm among Greek members. Within the Greek community, chapters will plan and offer alcohol-free social activities for their chapter members to attend, providing alternatives to drinking events for building social connections. To increase usability and contextual fit, the program of alcohol-free social activities was developed and refined in collaboration with Greek members. The pilot trial is focused on evaluating the feasibility and acceptability of the intervention but will also evaluate changes in heavy episodic drinking and alcohol consequences using a pre-post design, with data collected across two consecutive academic years. Members of participating chapters will provide baseline data during Year 1 and receive the intervention during Year 2.
1,674 studies on the registry are indexed under Alcoholism; 331 are open to participants now.
This study's planned enrollment of 480 is above the median of 88 across 1,428 interventional studies indexed under Alcoholism.
Browse Alcoholism studies →University of Washington is the lead sponsor of 1,433 studies on the registry; 225 are open to participants now.
Of its 158 completed or terminated interventional studies of FDA-regulated products, 136 (86%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Behavioral: Alcohol-free Social Activities Program
The Alcohol-Free Social Activities Program is a chapter-level behavioral intervention designed to increase the availability of and participation in rewarding social activities that do not involve alcohol among fraternity and sorority members. Participating chapters will receive a program toolkit containing guidance and procedures for planning and implementing alcohol-free social activities. Chapter leaders will select, plan, and implement activities for their members during the intervention period. The program is designed to increase opportunities for rewarding alcohol-free social experiences and strengthen social connection among chapter members.
Intervention Feasibility: Recruitment
Number of chapters who agree to participate in the intervention
Time frame: From initiation of chapter recruitment through the end of Year 1 enrollment, approximately 18 months.
Intervention Feasibility: Retention
The proportion of participating chapters that remain actively involved in the program through completion of the intervention period.
Time frame: From chapter enrollment through completion of the intervention period, approximately 14 months
Intervention Feasibility: Engagement
Number of Greek members who attend the social activities
Time frame: The intervention delivery period (approximately 4 weeks) during year 2
Weiner's Acceptability measure
Measure of acceptability of the intervention
Time frame: Post-intervention during Year 2
Weiner's Intervention Appropriateness measure
Measure of appropriateness of the intervention
Time frame: Post-intervention during Year 2
Weiner's Feasibility measure
Measure of feasibility of the intervention
Time frame: Post-intervention during Year 2
Intervention Feasibility: Enjoyment Ratings
Ratings of enjoyment from Greek members who attend an alcohol-free social activity
Time frame: During the intervention period in Year 2
Heavy episodic drinking episodes
Number of heavy episodic drinking episodes derived from the Daily Drinking Questionnaire
Time frame: Assessment periods over two months of Year 1 and Year 2
Alcohol consequences
Sum scores on the Brief Young Adult Alcohol Consequences Questionnaire (BYAACQ) which assesses alcohol use consequences. Higher scores indicate worse outcome.
Time frame: Assessment periods over two months of Year 1 and Year 2
Intervention Feasibility: Practicality
Time spent planning and facilitating alcohol-free social activities by chapters
Time frame: The intervention delivery period (approximately 4 weeks) during year 2
Plan to share: Yes — This study will submit and share data with NIAAA Data Archive (NIAAADA), a data repository housed within the NIMH Data Archive (NDA). De-identified individual participant data underlying the results reported from this study will be made available to qualified researchers for secondary research purposes, consistent with participant consent, applicable institutional requirements, and the study's NIH-approved Data Management and Sharing Plan. Data will be de-identified prior to sharing. Data will be made available through NIAAADA and/or a controlled-access process. Researchers requesting access may be required to submit a research proposal and enter into a data use agreement that prohibits attempts to identify participants or participating organizations.
Supporting information: Study protocol
Time frame: Beginning 1 year after publication of the main outcomes with no end date.
Access criteria: Qualified researchers
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
Contact study teamGet an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.